US20070162068A1 - Embolic protection system - Google Patents
Embolic protection system Download PDFInfo
- Publication number
- US20070162068A1 US20070162068A1 US11/512,702 US51270206A US2007162068A1 US 20070162068 A1 US20070162068 A1 US 20070162068A1 US 51270206 A US51270206 A US 51270206A US 2007162068 A1 US2007162068 A1 US 2007162068A1
- Authority
- US
- United States
- Prior art keywords
- filter
- guidewire
- vasculature
- catheter
- retrieval
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/0095—Packages or dispensers for prostheses or other implants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
- A61F2/011—Instruments for their placement or removal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/9522—Means for mounting a stent or stent-graft onto or into a placement instrument
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
- A61F2/013—Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
- A61F2/013—Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting
- A61F2002/015—Stop means therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
- A61F2002/018—Filters implantable into blood vessels made from tubes or sheets of material, e.g. by etching or laser-cutting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0067—Three-dimensional shapes conical
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Animal Behavior & Ethology (AREA)
- Transplantation (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Materials For Medical Uses (AREA)
- Insulated Conductors (AREA)
- Prostheses (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Window Of Vehicle (AREA)
Abstract
A retrieval catheter for retrieving a medical device deployed in a vasculature. The catheter comprises an outer catheter body and an inner coupling member having means for coupling to a medical device deployed in a vasculature. The catheter body is movable distally relative to the coupling member to retrieve a coupled medical device into the catheter body.
Description
- This application is a continuation of U.S. application Ser. No. 10/378,675, filed on Mar. 5, 2003, which claims the benefit of provisional application No. 60/361,340, filed on Mar. 5, 2002, the content of which is incorporated by reference, and which additionally, is a continuation-in-part of U.S. application Ser. No. 10/058,828, filed Jan. 30, 2002, which is a continuation of U.S. application Ser. No. 09/921,596, filed Aug. 6, 2001, now U.S. Pat. No. 6,432,122, which is a continuation of U.S. application Ser. No. 09/188,472, filed on Nov. 9, 1998, now U.S. Pat. No. 6,336,934. Application Ser. No. 09/188,472 claims the benefit of Irish Patent Application No. 970789, filed on Nov. 7, 1997, and Irish Patent Application No. 980267 filed on Apr. 8, 1998. Further, this application is also a continuation-in-part of U.S. application Ser. No. 09/838,545, filed Apr. 20, 2001, which is a continuation-in-part of U.S. application Ser. No. 09/188,472, filed on Nov. 9, 1998, now U.S. Pat. No. 6,336,934. Application Ser. No. 09/838,545 claims the benefit of PCT/IE00/00045 filed on Apr. 20, 2000, Irish Patent Application No. 2001/0255 filed on Mar. 16, 2001, Irish Patent Application No. 2001/0256 filed on Mar. 16, 2001, Irish Patent Application No. 2001/0259 filed on Mar. 16, 2001, and Irish Patent Application No. 2001/0263 filed on Mar. 16, 2001.
- This invention relates to a transvascular embolic protection system for safely capturing and retaining embolic material released during an interventional procedure while maintaining blood flow.
- Embolic protection systems of this general type are described in our published international patent applications WO 01/80776 and WO 01/80777.
- There is an economical and clinical need to provide an embolic protection system which will be easy and convenient for a clinician to prepare for use, to deploy and to retrieve. In addition there is a need to provide such a system which is suitable for use with standard medical equipment and will facilitate a wide range of clinical procedures to be carried out.
- According to the invention there is provided an embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter;
-
- the filter being movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for deployment in a vasculature;
- the filter at least in the collapsed configuration having a guidewire lumen defined at least partially therethrough for passing the filter over a guidewire;
- wherein the guidewire lumen is defined by a lumen-defining member which is spaced proximally of the distal end of the filter.
- According to one embodiment, the guidewire lumen is defined by a tubular member.
- In another embodiment, the tubular member is mounted to the filter.
- According to one embodiment, the filter comprises a snare engaging feature.
- In another embodiment, the snare engaging feature is radiopaque.
- According to the invention, there is provided an embolic protection filter for deployment in a vasculature, the filter having an inlet end arid an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter;
-
- the filter being movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for deployment in a vasculature;
- the filter at least in the collapsed configuration having a guidewire lumen defined at least partially therethrough for passing the filter over a guidewire;
- wherein the guidewire lumen is defined by a lumen-defining member which is movable or removable reactive to the filter.
- In one embodiment, the lumen-defining member is a substantially tubular member.
- In one embodiment, the tubular member has a slit extending the length thereof for removal of the member from a guidewire.
- In another embodiment, the lumen-defining member comprises a portion of a delivery system.
- Preferably the lumen-defining member comprises a pusher element of the delivery system, the pusher being movable from an extended lumen-defining configuration for loading of a filter to a retracted configuration for deployment of the filter.
- According to another aspect of the invention, there is provided an embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter;
- the filter being movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for deployment in a vasculature in apposition with a vasculature wall;
- in the outwardly extended configuration the filter exerting an outward radial force on a vasculature wall sufficient to retain the filter in position against substantial longitudinal movement.
- In one embodiment, the filter comprises a filter body and a filter support frame to support the filter body in the outwardly extended configuration in apposition with a vasculature wall, the filter support frame providing the outward radial force.
- In one embodiment, the filter comprises a low-friction outer layer.
- Preferably the outer layer is of a hydrophilic material.
- In one embodiment, the filter comprises an inflatable member to enhance the outward radial force.
- In another embodiment, the filter defines a guidewire lumen for passing the filter over a guidewire.
- In one embodiment, the filter comprises an anchor for fixing the filter to the vasculature in the deployed configuration.
- In another embodiment, the filter comprises a filter body and a filter support frame to support the filter body in the deployed configuration.
- In one embodiment, the support frame comprises the anchor.
- In one embodiment, the filter body comprises the anchor.
- In another embodiment, the anchor comprises a plurality of anchor elements.
- In one embodiment, the anchor elements are spaced-apart circumferentially around the filter when the filter is in the deployed configuration.
- In one embodiment, the support frame comprises at least one support hoop.
- In another embodiment, the support frame has a longitudinal aspect.
- In a further embodiment, the filter is self supported in a vasculature in the absence of a guidewire.
- According to another aspect of the invention, there is provided an embolic protection filter assembly for deployment in a vasculature, the assembly comprising:
-
- a filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter; and
- a receiver to guide a docking device into association with the filter.
- In one embodiment, the filter has a guidewire lumen for passing the filter over a guidewire, and the receiver is configured to guide a guidewire into the guidewire lumen.
- In one embodiment, the guidewire lumen extends only partially through the filter.
- In another embodiment, the receiver is configured to guide a coupling member towards the filter for coupling to the filter.
- In one embodiment, the receiver comprises a funnel.
- In another embodiment, the funnel is movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for guiding a docking device.
- In one embodiment, the funnel is biased towards the outwardly extended configuration.
- In another embodiment, the funnel comprises a funnel body and a funnel support to support the funnel body in the outwardly extended configuration.
- In one embodiment, the funnel body comprises a membrane.
- In a further embodiment, the funnel support comprises a plurality of pivotable fingers.
- Preferably the receiver comprises an approach channel.
- In one embodiment, the channel is provided by a lumen in a catheter.
- In another embodiment, the receiver is mounted to the filter.
- In one embodiment, the receiver is detachably mounted to the filter.
- In another embodiment, the receiver is separate from the filter.
- In a further embodiment, the receiver has means to space the receiver from the wall of a vasculature.
- Preferably the spacing means comprises an inflatable member to engage the wall of a vasculature.
- In one embodiment, the receiver is at least partially provided by a wall of the filter.
- In another embodiment, the receiver is at least partially provided by a wall of the filter at the inlet end of the filter.
- In a further embodiment, the receiver is at least partially provided by a wall of the filter at the outlet end of the filter.
- In one embodiment, the receiver extends proximally of the inlet end of the filter.
- In another embodiment, the receiver is located distally of the inlet end of the filter.
- In a further embodiment, the receiver is radially offset from the longitudinal axis of the filter.
- According to another aspect of the invention there is provided, an embolic protection system comprising:
-
- an embolic protection filter assembly as claimed in any of
claims 21 to 43; and - a docking device which may be guided by the receiver into association with the filter.
- an embolic protection filter assembly as claimed in any of
- In one embodiment, the docking device comprises a guidewire.
- In one embodiment, the docking device comprises a coupling member.
- According to another aspect of the invention, there is provided an embolic protection filter having an inlet end and an outlet end, the inlet. end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter;
-
- the filter having a guidewire aperture for passing the filter over a guidewire; and
- the filter comprising a seal to seal the guidewire aperture.
- Preferably the seal is self-closing.
- In one embodiment, the seal is located at a proximal end of the filter, and/or at a distal end of the filter.
- In one embodiment, the filter has a tubular member extending from the guidewire aperture to define a guidewire lumen through the tubular member.
- In another embodiment, the tubular member extends through at least part of the filter.
- In one embodiment, the tubular member is radially offset from the longitudinal axis of the filter.
- In one embodiment, the seal is an annular member around the guidewire aperture, the annular member being closable down to seal the guidewire aperture. Preferably the annular member is a tube.
- In one embodiment, the annular member comprises a soft membrane.
- In one embodiment, the annular member comprises two or more circumferentially overlapping flaps.
- According to a further aspect of the invention, there is provided a retrieval catheter for retrieving a medical device deployed in a vasculature, the catheter comprising:
-
- an outer catheter body; and
- an inner coupling member having means for coupling to a medical device deployed in a vasculature;
- the catheter body being movable distally relative to the coupling member to retrieve a coupled medical device into the catheter body.
- In one embodiment, the coupling means comprises a male or female member on the coupling member for engagement with a corresponding female or male member on the medical device.
- In one embodiment, the male member is movable between a low-profile configuration and an outwardly protruding configuration.
- In one embodiment, the male member is biased towards the outwardly protruding configuration.
- In another embodiment the male member is of a resilient material.
- Preferably the coupling means is substantially arrow-head shaped.
- In one embodiment, the male member is in the form of a hook for hooking around a female member on the medical device.
- In one embodiment, the male member is in the form of a hook for hooking around a tether arm on the medical device.
- In one embodiment, the tether arm is at a proximal end of the medical device.
- In another embodiment, the tether arm is located within the medical device.
- In one embodiment, the coupling means comprises at least one female member on the coupling member for engagement with at least one male member on the medical device.
- In one embodiment, the female member is in the form of a loop for looping around a protruding male member on the medical device.
- In one embodiment, the coupling means comprises a pair of jaws on the coupling member, the jaws being movable between an outwardly protruding configuration and a low-profile configuration to grasp the medical device.
- In one embodiment, the retrieval catheter comprises an actuator to move the jaws to the outwardly protruding configuration.
- In another embodiment, the actuator is movable longitudinally relative to the jaws to move the jaws in a camming arrangement to the outwardly protruding configuration.
- In a further embodiment, the jaws are biased towards the low-profile configuration.
- In one embodiment, the catheter body is engageable with the jaws to move the jaws to the low-profile configuration.
- In another embodiment, the jaws are biased towards the outwardly protruding configuration.
- In a further embodiment, the coupling member is at least partially of a magnetic material for magnetic coupling to an oppositely charged magnetic portion of the medical device.
- In one embodiment the retrieval catheter comprises means to axially elongate a deployed medical device to collapse the medical device to a low-profile configuration for retrieval into the catheter body.
- In one embodiment, the elongation means comprises a second coupling member movable relative to the first coupling member to collapse the medical device.
- In another embodiment, the second coupling member comprises a pusher member movable distally relative to first coupling member to engage a deployed medical device distally of the first coupling means and thereby collapse the medical device.
- In a further embodiment, the catheter body has a guidewire lumen extending partially therethrough for passing the catheter body over a guidewire in a rapid exchange manner.
- In one embodiment, the guidewire lumen is offset radially from the coupling member.
- According to one embodiment, there is provided a retrieval catheter for retrieving an embolic protection filter deployed in a vasculature.
- In another aspect of the invention there is provided an embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter;
-
- the filter being movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for deployment in a vasculature;
- the filter at least in the collapsed configuration having a guidewire lumen defined at least partially therethrough for passing the filter over a guidewire;
- wherein the guidewire lumen is defined by a lumen-defining member which is spaced proximally of the distal end of the filter.
- In one embodiment, the guidewire lumen is defined by a tubular member.
- In another embodiment, the tubular member is mounted to the filter.
- Preferably the filter comprises a snare engaging feature.
- Preferably the snare engaging feature is radiopaque.
- In another aspect the invention provides a method for the capture and removal of embolic material from a vasculature during an interventional procedure comprising the steps of:
-
- providing a collapsible embolic protection filter having a collapsed configuration for delivery of the filter, and a deployed configuration;
- advancing a guidewire through a vasculature;
- crossing a desired treatment location with the guidewire;
- deploying the filter distal to the treatment location;
- carrying out an interventional procedure at the treatment location, embolic material generated during the treatment procedure being captured by the deployed filter;
- advancing a retrieval device;
- engaging the filter with the retrieval device independent of the guidewire; and
- withdrawing the retrieval device and the filter from the vasculature.
- In one case, after crossing a treatment location with the guidewire the embolic protection device is introduced over the guidewire.
- In one case, the deployed filter is retained independent of the guidewire against substantial longitudinal movement.
- In another case, the filter applies a radial force to the vasculature to substantially prevent movement of the filter relative to the vasculature in the deployed configuration.
- In one case, the filter in the deployed configuration is anchored to the vasculature.
- In one case, the method comprises the step of releasing the filter from the vasculature before retrieving the filter.
- In another case, the filter is simultaneously released and retrieved by moving a retrieval catheter distally relative to the filter.
- In one case the filter is released prior to retrieving the filter.
- In one case, the method comprises the step of axially elongating the filter to release the filter.
- According to another aspect the method comprises the steps of:
- withdrawing the guidewire from the filter and/or the desired treatment location; and
- subsequently placing a guidewire in the filter.
- In one case, the same guidewire is placed in the filter.
- In another case, another guidewire is placed in the filter.
- In one case, the interventional device is introduced over the guidewire for carrying out the interventional procedure.
- In one case, the interventional procedure comprises a stenting of the treatment location.
- In another case, the interventional procedure comprises a balloon angioplasty procedure at the treatment location.
- According to another aspect the invention provides a method for the capture and removal of embolic material from a vasculature during an interventional procedure comprising the steps of:
-
- advancing a guidewire through a vasculature;
- crossing a desired treatment location with the guidewire;
- introducing over the guidewire a collapsible embolic protection filter having a collapsed configuration for delivery of the filter, and a deployed configuration;
- deploying the filter distal to the treatment location;
- the filter in the deployed configuration being retained in apposition with the vasculature independent of the guidewire against substantial longitudinal movement;
- carrying out an interventional procedure at the treatment location, embolic material generated during the treatment procedure being captured by the deployed filter;
- advancing a retrieval device;
- engaging the filter with the retrieval device; and
- withdrawing the retrieval device and the filter from the vasculature.
- In one case, on the filter applies a radial force to the vasculature to substantially prevent movement of the filter relative to the vasculature in the deployed configuration.
- Preferably the filter in the deployed configuration is anchored to the vasculature.
- In one case, the filter is engaged with the retrieval device independent of the guidewire.
- According to another aspect the method comprises the step of releasing the filter from the vasculature before retrieving the filter.
- According to a further aspect, the retrieval device is a retrieval catheter and the filter is simultaneously released and retrieved by moving the retrieval catheter distally relative to the filter.
- In one case, the filter is released prior to retrieving the filter.
- According to one aspect, the method comprises the step of axially elongating the filter to release of the filter.
- Preferably the method comprises the steps of:
-
- withdrawing the guidewire from the filter and the desired treatment location; and
- subsequently placing a guidewire in the filter.
- According to a one aspect, the same guidewire is placed in the filter.
- According to a another aspect, another guidewire is placed in the filter.
- In one case, the interventional device is introduced over the guidewire for carrying out the interventional procedure.
- Preferably the interventional procedure comprises a stenting of the treatment location.
- According to one aspect, the interventional procedure comprises a balloon angioplasty procedure at the treatment location.
- According to a further aspect a method for the capture and removal of embolic material from a vasculature during an interventional procedure comprising the steps of:
-
- providing a collapsible embolic protection filter having a collapsed configuration for delivery of the filter, and a deployed configuration;
- advancing a guidewire through a vasculature;
- crossing a desired treatment location with the guidewire;
- deploying the filter distal to the treatment location;
- withdrawing the guidewire from the filter and/or the desired treatment, location; and
- subsequently placing a guidewire in the filter;
- carrying out an interventional procedure at the treatment location, embolic material generated during the treatment procedure being captured by the deployed filter;
- advancing a retrieval device;
- engaging the filter with the retrieval device; and
- withdrawing the retrieval device and the filter from the vasculature.
- In one case, the same guidewire is placed in the filter.
- In another case, another guidewire is placed in the filter.
- In one case the interventional device is introduced over the guidewire for carrying out the interventional procedure.
- In another case, the interventional procedure comprises a stenting of the treatment location.
- In one case, the interventional procedure comprises a balloon angioplasty procedure at the treatment location.
- In one case, the filter is engaged with the retrieval device independent of the guidewire.
- In another case, after crossing a treatment location with the guidewire the embolic protection device is introduced over the guidewire.
- Preferably the deployed filter is retained independent of the guidewire against substantial longitudinal movement.
- In one case, on deployment, the filter applies a radial force to the vasculature to substantially prevent movement of the filter relative to the vasculature in the deployed configuration.
- In one case, the filter in the deployed configuration is anchored to the vasculature.
- In one case, the method comprises the step of releasing the filter from the vasculature before retrieving the filter.
- In another case, the filter is simultaneously released and retrieved by moving a retrieval catheter distally relative to the filter.
- In another case, the filter is released prior to retrieving the filter.
- According to one aspect, the method comprises the step of axially elongating the filter to release the filter.
- According to a further aspect the invention provides a method of retrieving a medical device from a vasculature, the method comprising the steps of:
-
- advancing a retrieval catheter through a vasculature until a distal end of the retrieval catheter is proximally of the deployed medical device;
- axially elongating an element of the medical device to collapse the medical device; and
- moving the retrieval catheter distally relative to the collapsed medical device to retrieve the. medical device into, the retrieval catheter.
- In one case, the method comprises the steps of:
- engaging a first coupling member with the element of the deployed medical device;
- engaging a second coupling member with the element of the deployed medical device; and
- moving the coupling members relative to one another to axially elongate the element of the medical device.
- According to another aspect of the invention, there is provided an embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter;
-
- the filter being movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for deployment in a vasculature;
- the filter at least in the collapsed configuration having a guidewire lumen defined at least partially therethrough for passing the filter over a guidewire;
- wherein the tubular member is shortenable upon movement of the filter from the collapsed configuration to the extended configuration.
- In one embodiment, the tubular member comprises at least two telescopable tubes.
- According to another aspect of the invention, there is provided an embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter;
-
- the filter being movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for deployment in a vasculature;
- the filter at least in the collapsed configuration having a guidewire lumen defined at least partially therethrough for passing the filter over a guidewire; wherein the filter comprises a support structure, in the collapsed configuration the support structure forming a tubular member to define the guidewire lumen.
- According to another aspect the invention provides a method for the capture and removal of embolic material from a vasculature during an interventional procedure comprising the steps of:
-
- advancing a guidewire through a vasculature;
- crossing a desired treatment location with the guidewire;
- introducing over the guidewire a collapsible embolic protection filter having a collapsed configuration for delivery and withdrawal of the filter, and a deployed configuration;
- deploying the filter distal to the treatment location;
- carrying out an interventional procedure at the treatment, location, embolic material generated during the treatment procedure being captured by the deployed filter;
- advancing a retrieval catheter;
- fixing an abutment to the guidewire;
- engaging the guidewire abutment with the filter to prevent movement of the filter distally of the guidewire abutment;
- collapsing the filter and retrieving the filter into the retrieval catheter and with it the captured embolic material; and
- withdrawing the retrieval catheter and the collapsed filter from the vasculature.
- In one case, the abutment is fixed to the guidewire during deployment of the filter.
- In another case, the abutment is fixed to the guidewire before advancing the guidewire through the vasculature.
- According to another aspect of the invention there is provided a retrieval catheter for retrieving a medical device deployed in a vasculature, the catheter comprising:
-
- a first coupling member having means for coupling to a medical device deployed in a vasculature; and
- a second coupling member having means for coupling to the deployed medical device;
- the coupling members being relatively movable to axially elongate the medical device and collapse the medical device.
- In one embodiment, the catheter comprises an outer catheter body movable distally relative to the coupling members to retrieve a collapsed medical device into the catheter body.
- According to another aspect of the invention, there is provided an embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter; and
-
- the filter comprising an inflatable member to exert an outward radial force on a vasculature wall sufficient to retain the filter in position against substantial longitudinal movement.
- According to a further aspect of the invention there is provided an embolic protection filter system comprising:
- a collapsible embolic protection filter having a collapsed configuration for delivery of the filter, and a deployed configuration; and
- a snare for engaging the filter.
- In one embodiment, the filter has a snare engaging feature for engagement by the snare.
- In one embodiment, the filter comprises a support frame and the snare engaging feature is provided by or on the support frame.
- Preferably the snare is radiopaque at least in a region of engagement with a filter.
- In one embodiment, the snare engaging feature is radiopaque.
- In another embodiment, the snare comprises a snaring hoop.
- According to a further aspect the invention provides a method for the capture and removal of embolic material from a vasculature during an interventional procedure comprising the steps of:
-
- providing a collapsible embolic protection filter having a collapsed configuration for delivery of the filter, and a deployed configuration;
- advancing a guidewire through a vasculature;
- crossing a desired treatment location with the guidewire;
- deploying the filter distal to the treatment location;
- carrying out an interventional procedure at the treatment location, embolic material generated during the treatment procedure being captured by the deployed filter;
- advancing a snare;
- engaging the snare with the filter; and
- withdrawing the snare and the filter.
- In one case, the filter has a snare engaging feature and the snare is engaged with the snare engaging, feature.
- In another case, the snare engaging feature is provided on or by a support frame of the filter.
- In one case, the method comprises the steps of leading the snare into engagement with, the snare engaging feature of the filter and monitoring the engagement of the filter with the snare.
- In one case, the snare and/or snare engaging features are radiopaque for external monitoring of the engagement.
- In one case, the snare is engaged with the filter independent of the guidewire.
- In another case, after crossing a treatment location with the guidewire the embolic protection device is introduced over the guidewire.
- According to the invention, there is provided a method for the capture and removal of embolic material from a vasculature during an interventional procedure comprising the steps of:
-
- advancing a guidewire through a vasculature;
- crossing a desired treatment location with the guidewire;
- introducing over the guidewire a collapsible embolic protection filter having a collapsed configuration for delivery and withdrawal of the filter, and a deployed configuration;
- deploying the filter distal to the treatment location;
- the filter in the deployed configuration being in apposition with the vasculature so that the filter is retained in position against substantial longitudinal movement, on deployment in the vasculature;
- carrying out an interventional procedure at the treatment location, embolic material generated during the treatment procedure being captured by the deployed filter;
- advancing a retrieval catheter;
- collapsing the filter and retrieving the filter at least partially into the retrieval catheter and with it the captured embolic material; and
- withdrawing the retrieval catheter and the collapsed filter from the vasculature.
- In one embodiment of the invention the method comprises the step of releasing the apposition of the filter with the vasculature before collapsing the filter.
- The filter may be simultaneously collapsed and retrieved into the retrieval catheter by moving the retrieval catheter distally relative to the filter.
- Alternatively the filter may be collapsed prior to retrieving the filter into the retrieval catheter. Preferably the method comprises the step of axially elongating the filter to collapse the filter.
- Desirably the method comprises the step of engaging a part of the retrieval catheter with the filter to aid collapsing of the filter.
- In one case the method comprises the steps of:
-
- withdrawing the guidewire from the filter and the desired treatment location; and
- crossing the desired treatment location with another guidewire.
- The interventional device may be introduced over the other guidewire for carrying out the interventional procedure.
- In one case the interventional procedure comprises a stenting of the treatment location. In another case the interventional procedure comprises a balloon angioplasty procedure at the treatment location.
- In another aspect the invention provides a method for the capture and removal of embolic material from a vasculature during an interventional procedure comprising the steps of:
-
- advancing a guidewire through a vasculature;
- crossing a desired treatment location with the guidewire;
- introducing over the guidewire a collapsible embolic protection filter having a collapsed configuration for delivery and withdrawal of the filter, and a deployed configuration;
- deploying the filter distal to the treatment location;
- carrying out an interventional procedure at the treatment location, embolic material generated during the treatment procedure being captured by the deployed filter;
- advancing a retrieval catheter;
- fixing an abutment to the guidewire;
- engaging the guidewire abutment with the filter to prevent movement of the filter distally of the guidewire abutment;
- collapsing the filter and retrieving the filter into the retrieval catheter and with it the captured embolic material; and
- withdrawing the retrieval catheter and the collapsed filter from the vasculature.
- The abutment may be fixed to the guidewire during deployment of the filter. Alternatively the abutment may be fixed to the guidewire before advancing the guidewire through the vasculature.
- In a further aspect of the invention, there is provided a retrieval catheter for retrieving a medical device deployed in a vasculature, the catheter comprising:
-
- an outer catheter body; and
- an inner coupling member having means for coupling to a medical device deployed in a vasculature;
- the catheter body being movable distally relative to the coupling member to retrieve a coupled medical device into the catheter body.
- In one embodiment of the invention the coupling means comprises a male or female member on the coupling member for engagement with a corresponding female or male member on the medical device.
- In a preferred case the male member is movable between a low-profile configuration and an outwardly protruding configuration. Ideally the male member is biased towards the outwardly protruding configuration. Most preferably the male member is of a resilient material.
- In one case the coupling means is substantially arrow-head shaped.
- In another case the male member is in the form of a hook for hooking around a female member on the medical device. Alternatively the male member may be in the form of a hook for hooking around a tether arm on the medical device. Ideally the tether arm is at a proximal end of the medical device. The tether arm may be located within the medical device.
- In another embodiment of the invention the coupling means comprises at least one female member on the coupling member for engagement with at least one male member on the medical device. The female member may be in the form of a loop for looping around a protruding male member on the medical device.
- In a preferred embodiment the coupling means comprises a pair of jaws on the coupling member, the jaws being movable between an outwardly protruding configuration and a low-profile configuration to grasp the medical device. The retrieval catheter may comprise an actuator to move the jaws to the outwardly protruding configuration. Ideally the actuator is movable longitudinally relative to the jaws to move the jaws in a camming arrangement to the outwardly protruding configuration. Most preferably the jaws are biased towards the low-profile configuration.
- In another embodiment the catheter body is engageable with the jaws to move the jaws to the low-profile configuration. The jaws may be biased towards the outwardly protruding configuration.
- In another embodiment of the invention the coupling means comprises an inflatable member on the coupling member for engagement with the medical device. Preferably the inflatable member is movable inwardly upon inflation to engage the medical device. The coupling means may comprise an engagement surface on the coupling member for engagement with an inflatable member on the medical device.
- In a further embodiment the coupling member is at least partially of a magnetic material for magnetic coupling to an oppositely charged magnetic portion of the medical device.
- The retrieval catheter may comprise means to axially elongate a deployed medical device to collapse the medical device to a low-profile configuration for retrieval into the catheter body. Preferably the elongation means comprises a second coupling member movable relative to the first coupling member to collapse the medical device. Ideally the second coupling member comprises a pusher member movable distally relative to first coupling member to engage a deployed medical device distally of the first coupling means and thereby collapse the medical device.
- In one case the catheter body has a guidewire lumen extending partially therethrough for passing the catheter body over a guidewire in a rapid exchange manner. The guidewire lumen may be offset radially from the coupling member.
- The retrieval catheter of the invention may be for retrieving an embolic protection filter deployed in a vasculature.
- According to another aspect of the invention, there is provided a retrieval catheter for retrieving a medical device deployed in a vasculature, the catheter comprising:
-
- a first coupling member having means for coupling to a medical device deployed in a vasculature; and
- a second coupling member having means for coupling to the deployed medical device;
- the coupling members being relatively movable to axially elongate the medical device and collapse the medical device.
- In one embodiment the catheter comprises an outer catheter body movable distally relative to the coupling members to retrieve a collapsed medical device into the catheter body.
- In another aspect, the invention provides a method of retrieving a medical device from a vasculature, the method comprising the steps of:
-
- advancing a retrieval catheter through a vasculature until a distal end of the retrieval catheter is proximally of the deployed medical device;
- axially elongating an element of the medical device to collapse the medical device; and
- moving the retrieval catheter distally relative to the collapsed medical device to retrieve the medical device into the retrieval catheter.
- In one embodiment the method comprises the steps of:
-
- engaging a first coupling member with the element of the deployed medical device;
- engaging a second coupling member with the element of the deployed medical device; and
- moving the coupling members relative to one another to axially elongate the element of the medical device.
- The invention also provides in another aspect an embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter;
- the filter being movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for deployment in a vasculature in apposition with a vasculature wall;
- in the outwardly extended configuration the filter exerting an outward radial force on a vasculature wall sufficient to retain the filter in position against substantial longitudinal movement.
- In one embodiment of the invention the filter comprises a filter body and a filter support frame to support the filter body in the outwardly extended configuration in apposition with a vasculature wall, the filter support frame providing the outward radial force.
- The filter may comprise a low-friction outer layer. Preferably the outer layer is of a hydrophilic material.
- In one case the filter comprises an inflatable member to enhance the outward radial force.
- Ideally the filter defines a guidewire lumen for passing the filter over a guidewire.
- According to another aspect of the invention, there is provided an embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter; and
- the filter comprising a central tether extending proximally of the filter.
- Ideally the tether is a generally central tether.
- The tether may comprise a wire, preferably the wire is configured to facilitate passage of a medical device over the wire.
- The invention also provides in a further aspect, an embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter; and
- the filter comprising an inflatable member to exert an outward radial force on a vasculature wall sufficient to retain the filter in position against substantial longitudinal movement.
- In another aspect, the invention provides a method for the capture and removal of embolic material from a vasculature during an interventional procedure comprising the steps of:
-
- advancing a first guidewire through a vasculature;
- crossing a desired treatment location with the first guidewire;
- introducing over the first guidewire a collapsible embolic protection filter having a collapsed configuration for delivery and withdrawal of the filter, and a deployed configuration;
- deploying the filter distal to the treatment location;
- withdrawing the first guidewire from the filter and the desired treatment location;
- crossing the desired treatment location with a second guidewire;
- introducing over the second guidewire an interventional device;
- carrying out an interventional procedure at the treatment location, embolic material generated during the treatment procedure being captured by the deployed filter;
- advancing a retrieval catheter;
- collapsing the filter and retrieving the filter into the retrieval catheter and with it the captured embolic material; and
- withdrawing the retrieval catheter and the collapsed filter from the vasculature.
- In one embodiment of the invention the method comprises the step of leading the second guidewire through the filter prior to carrying out the interventional procedure.
- The method may comprise the step of guiding the second guidewire through the filter. Ideally the second guidewire remains proximal of the deployed filter.
- In another embodiment the method comprises the steps of:
-
- withdrawing the second guidewire from the filter and the desired treatment location;
- advancing a third guidewire to the filter; and
- advancing the retrieval catheter over the third guidewire.
- In one case collapsing the filter into the retrieval catheter comprises the step of releasing the filter from apposition with the vasculature wall.
- The diameters of the guidewires may differ. The material properties of the guidewires may differ.
- The invention provides in a further aspect an embolic protection filter assembly for deployment in a vasculature, the assembly comprising:
-
- a filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter; and
- a receiver to guide a docking device into association with the filter.
- In one embodiment the filter has a guidewire lumen for passing the filter over a guidewire, and the receiver is configured to guide a guidewire into the guidewire lumen. The guidewire lumen may extend only partially through the filter.
- Preferably the receiver is configured to guide a coupling member towards the filter for coupling to the filter.
- In one case the receiver comprises a funnel. Preferably the funnel is movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for guiding a docking device. Ideally the funnel is biased towards the outwardly extended configuration.
- In one embodiment the funnel comprises a funnel body and a funnel support to support the funnel body in the outwardly extended configuration. Preferably the funnel body comprises a membrane. Ideally the funnel support comprises a plurality of pivotable fingers.
- In another embodiment, the receiver comprises an approach channel. Preferably ,the channel is provided by a lumen in a catheter.
- The receiver may be mounted to the filter. Preferably the receiver is detachably mounted to the filter.
- Alternatively the receiver may be separate from the filter.
- In a preferred embodiment the receiver has means to space the receiver from the wall of a vasculature. Ideally the spacing means comprises an inflatable member to engage the wall of a vasculature.
- In one embodiment the receiver is at least partially provided by a wall of the filter. Preferably the receiver is at least partially provided by a wall of the filter at the inlet end of the filter. Alternatively the receiver may be at least partially provided by a wall of the filter at the outlet end of the filter.
- In one case the receiver extends proximally of the inlet end of the filter. In another case the receiver is located distally of the inlet end of the filter.
- In a further embodiment the receiver is radially offset from the longitudinal axis of the filter.
- According to a further aspect of the invention, there is provided an embolic protection system comprising:
-
- an embolic protection filter assembly of the invention; and
- a docking device which may be guided by the receiver into association with the filter.
- In one embodiment the docking device comprises a guidewire.
- In another case the docking device comprises a coupling member.
- In another aspect, the invention provides an embolic protection filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter;
- the filter having a guidewire aperture for passing the filter over a guidewire; and
- the filter comprising a seal to seal the guidewire aperture.
- The seal may be self-closing.
- Ideally the seal is located at a proximal end of the filter, and/or at a distal end of the filter.
- The filter may have a tubular member extending from the guidewire aperture to define a guidewire lumen through the tubular member. In one case the tubular member extends through at least part of the filter. Preferably the tubular member is radially offset from the longitudinal axis of the filter.
- In one embodiment the seal is an annular member around the guidewire aperture, the annular member being closable down to seal the guidewire aperture. In one case the annular member is a tube. In another case the annular member comprises a soft membrane. The annular member may comprise two or more circumferentially overlapping flaps.
- The invention provides in another aspect an embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter;
- the filter being movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for deployment in a vasculature;
- the filter at least in the collapsed configuration having a guidewire lumen defined at least partially therethrough for passing the filter over a guidewire.
- The guidewire lumen may be defined by a tubular member extending at least partially through the filter.
- In one case the tubular member is mounted to the filter. In another case the tubular member is spaced proximally of a distal end of the filter.
- Preferably the tubular member is shortenable upon movement of the filter from the collapsed configuration to the extended configuration. Ideally the tubular member comprises at least two telescopable tubes.
- In one embodiment the tubular member is provided by a catheter.
- The catheter may be a retrieval catheter, or a delivery catheter.
- In another embodiment of the invention the filter comprises a support structure, in the collapsed configuration the support structure forming a tubular member to define the guidewire lumen.
- The invention will be. more clearly understood from the following description of some embodiments thereof, given by way of example only, with reference to the accompanying drawings, in which:
-
FIG. 1 is a perspective of an embolic protection filter according to the invention; - FIGS. 2 to 16 are partially cross-sectional, side views illustrating the use of an embolic protection filter;
-
FIG. 17 is a perspective view of another filter of the invention; -
FIG. 18 is a side view of a further filter of the invention; -
FIG. 19 is an end view of the filter ofFIG. 18 ; -
FIG. 20 is a side view of another filter of the invention; -
FIGS. 21 and 22 are side views of another filter, in use; - FIGS. 23 to 26 are diagrams illustrating a filter of the invention, in use;
- FIGS. 27 to 31A are perspective views of various alternative constructions of filters;
- FIGS. 32 to 39 are various views of a delivery catheter which may be used in the invention;
- FIGS. 40 to 54 are side, partially cross sectional views illustrating various steps in the method of the invention;
- FIGS. 55 to 57 are various views of another delivery catheter which may be used in the invention;
- FIGS. 58 to 61 are views illustrating the use of a temporary lumen-defining member for filter delivery;
- FIGS. 62 to 68 are views illustrating the use of a part of the delivery system to provide a temporary lumen-defining member;
-
FIGS. 69 and 70 are perspective views of such a lumen-defining member extending to a side of a filter; -
FIGS. 71 and 72 are perspective views of such a lumen-defining member extending through a filter; -
FIG. 73 is a schematic view of another embolic protection filter according to the invention in a deployed configuration; -
FIG. 74 is a schematic view of the filter ofFIG. 73 collapsed in a delivery catheter; -
FIG. 75 is a perspective view of another embolic protection filter according to the invention; -
FIG. 76 is a cross-sectional, side view of a delivery catheter according to the invention in a delivery configuration; -
FIG. 77 is a cross-sectional, side view of the filter ofFIG. 75 collapsed in the delivery catheter ofFIG. 87 ; -
FIG. 78 is a cross-sectional, side view of the delivery catheter ofFIG. 76 in a deployment configuration; -
FIGS. 79 and 80 are views of a filter with a guidewire passageway at the side thereof; -
FIG. 81 is an enlarged view of a detail ofFIG. 80 ; - FIGS. 82 to 84 are perspective views illustrating different guidewire paths;
-
FIG. 85 is a perspective view of another embolic protection filter according to the invention; -
FIG. 86 is an enlarged, perspective view of a receiver of the embolic protection filter ofFIG. 85 ; - FIGS. 87 to 89 are partially cross-sectional, side views illustrating guiding of a guidewire through the embolic protection filter of
FIG. 85 ; -
FIG. 90 is a partially cross-sectional, side view of the embolic protection filter ofFIG. 85 deployed in a vasculature; -
FIGS. 91 and 92 are enlarged, perspective views of seals of the embolic protection filter ofFIG. 90 ; - FIGS. 93 to 110 are partially cross-sectional, side views of the embolic protection filter of
FIG. 85 in use; -
FIG. 111 is a side view of another retrieval catheter according to the invention passing over a guidewire; -
FIG. 112 is a view along line B-B inFIG. 111 ; -
FIGS. 113 and 114 are partially cross-sectional, side views illustrating retrieval of a filter ofFIG. 1 using a retrieval catheter; -
FIG. 115 is a perspective view of another embolic protection filter according to the invention; -
FIGS. 116 and 117 are perspective and cross-sectional, side views respectively of another embolic protection filter according to the invention; -
FIG. 118 is a perspective view of a further embolic protection filter according to the invention guiding a guidewire through the embolic protection filter; -
FIGS. 119 and 120 are partially cross-sectional, side views of the embolic protection filter ofFIG. 118 guiding a guidewire through the embolic protection filter; -
FIG. 121 is an end view of the embolic protection filter ofFIG. 118 ; -
FIG. 122 is a side view of a distal end of a filter; - FIGS. 123 to 126 are end views in the direction of the arrow X of
FIG. 122 of various outlet seals; -
FIG. 127 is a perspective view of a distal end of the filter of FIGS. 122 to 126, in use; - FIGS. 128 to 132 are various views of a filter with an alternative outlet seal;
-
FIG. 133 is a perspective view of an alternative outlet seal; -
FIGS. 134 and 135 are cross-sectional views of the seal ofFIG. 133 , in use; -
FIGS. 136 and 137 are perspective views of further outlet seals; -
FIG. 138 is a perspective view of a further outlet seal; -
FIGS. 139 and 140 are cross-sectional views on the line A-A ofFIG. 138 in different configurations of use; - FIGS. 141 to 143 are views of a further outlet seal arrangement;
- FIGS. 144 to 149 are partially cross-sectional side views illustrating retrieval of an embolic protection device;
- FIGS. 150 to 163 are partially cross-sectional, side views of an embolic protection filter and a retrieval catheter in use;
- FIGS. 164 to 165 are partially cross-sectional, side views illustrating retrieval of another embolic protection filter according to the invention;
-
FIGS. 166 and 167 are schematic side views illustrating retrieval of an embolic protection filter using other retrieval catheters according to the invention; -
FIG. 168 is a perspective view of another embolic protection filter according to the invention; -
FIG. 169 is a perspective view illustrating retrieval of the filter ofFIG. 168 ; -
FIG. 170 is a perspective view of another embolic protection filter according to the invention; -
FIG. 171 is a perspective view illustrating retrieval of the filter ofFIG. 170 ; -
FIGS. 172 and 173 are perspective views of further embolic protection filters according to the invention; - FIGS. 174 to 178 are schematic views illustrating retrieval of the embolic protection filter of
FIG. 168 ; -
FIGS. 179 and 180 are perspective views of further embolic protection filters according to the invention; -
FIGS. 181 and 182 are perspective views illustrating retrieval of another embolic protection filter according to the invention; -
FIG. 183 is a perspective view of another embolic protection filter deployed in a vasculature; -
FIG. 184 is a side view of part of another retrieval catheter according to the invention; -
FIG. 185 is a cross-sectional, side view of the retrieval catheter ofFIG. 184 ; - FIGS. 186 to 188 are schematic side views illustrating retrieval of an embolic protection filter using the retrieval catheter of
FIG. 184 ; -
FIG. 189 is a side view along line A-A inFIG. 188 ; - FIGS. 190 to 192 are cross-sectional side views illustrating retrieval of an embolic protection filter using another retrieval catheter of the invention;
-
FIG. 193 is a cross-sectional, side view of part of another retrieval catheter according to the invention; -
FIG. 194 is a partially cross-sectional, side view illustrating collapse of an embolic protection filter using the retrieval catheter ofFIG. 193 ; - FIGS. 195 to 201 are various views illustrating the snaring of an embolic protection device of the invention;
- FIGS. 201 to 206 are various views illustrating snaring of another filter;
- FIGS. 207 to 212 are various views illustrating snaring of a further filter;
- FIGS. 213 to 218 are views illustrating another retrieval system;
- FIGS. 219 to 224 are views of the snaring of a filter of the invention;
-
FIGS. 225 and 226 are views of another filter of the invention; - FIGS. 227 to 230 illustrate retrieval of filters;
-
FIG. 229A is a cross-sectional view illustrating the retrieval of the filter ofFIG. 230 using the retrieval catheter ofFIG. 229 . -
FIGS. 231 and 232 illustrate snaring of another filter; - FIGS. 233 to 237 are side, partially cross-sectional views of the snaring of any filter;
-
FIGS. 238 and 239 illustrate the snaring of another filter; -
FIG. 240 is a partially cross-sectional, side view of an embolic protection filter according to the invention in an expanded configuration; -
FIG. 241 is a partially cross-sectional, side view of the filter ofFIG. 240 in a collapsed configuration; -
FIGS. 242 and 243 are partially cross-sectional, side views illustrating retrieval of the filter ofFIG. 240 ; -
FIG. 244 is a partially cross-sectional, side view of the filter ofFIG. 240 after being recrossed with a guidewire; -
FIGS. 245 and 246 are partially cross-sectional, side views illustrating retrieval of the filter ofFIG. 244 . - FIGS. 247 to 251 are views similar to
FIGS. 240, 241 , and 244 to 246 respectively of another embolic protection filter according to the invention; -
FIG. 252 is a schematic illustrating fixing of an abutment to a guidewire; -
FIG. 253 is a schematic view of the guidewire and the abutment; -
FIG. 254 is a perspective view of another embolic protection filter according to the invention passing over a guidewire; - FIGS. 255 to 257 are partially cross-sectional side views illustrating guiding of a guidewire through an embolic protection filter;
-
FIG. 258 is a cross-sectional, end view of a catheter according to the invention; -
FIG. 259 is a cross-sectional, end view of a catheter according to the invention; -
FIG. 260 is a cross-sectional, side view of another retrieval catheter according to the invention; and -
FIG. 261 is a partially cross-sectional, side view illustrating retrieval of an embolic protection filter using the retrieval catheter ofFIG. 260 . - The invention provides an embolic protection system which has a number of features which allows the system to be used in placing a guide catheter proximal to lesion as per standard practice and advance any suitable guidewire across the lesion. A load filter is loaded into the delivery catheter in such a way as to provide a lumen through the loaded device through which the guidewire will pass. The loaded device is. advanced over the guidewire and across the lesion. The filter is deployed from the delivery catheter and the delivery catheter is removed. The filter remains stable in the vessel without any user control. Standard interventional procedures (angioplasty, stent etc. . . . ) can be performed. The guidewire may be replaced by simply removing the initial wire and advancing a replacement wire through the guide catheter, across the lesion and through the filter. The filter may be retrieved by advancing a retrieval catheter over the guidewire and up to the filter. An inner member of the retrieval catheter may be engaged with the filter. Then outer retrieval sheath is advanced to collapse the filter and retrieve. The guidewire may be left in place if desired.
- Referring to the drawings and initially to
FIG. 1 there is illustrated anembolic protection filter 1 according to the invention, thefilter 1 being suitable for deployment in a vasculature to filter undesired embolic material from the blood stream flowing through the vasculature. - The
filter 1 comprises acollapsible filter body 2 which in this case is supported by a collapsiblefilter support frame 3. In this case the filter support is mounted on aninner tube 8. - The
filter body 2 has aninlet end 4 and anoutlet end 5. Theinlet end 4 has one or more, and in this a single,large inlet opening 6 which are sized to allow blood and embolic material enter thefilter body 2. Theoutlet end 5 has a plurality ofsmall outlet openings 7 which are sized to allow through passage of blood but to retain undesired embolic material within thefilter body 2. In this way, thefilter 1 captures and safely retains any undesired embolic material in the blood stream within thefilter body 2 while facilitating continued flow of blood through the vascular system. Emboli are thus prevented from flowing further downstream through the vascular system, which could otherwise have potentially catastrophic results. - The relatively
large inlet opening 6 provides for the possibility of aspirating embolic material from within thefilter body 2. This may be particularly advantageous if it is desired to leave thefilter 1 in place in a vasculature for a long period of time, for example overnight, to assist in vascular recovery. - The
filter body 2 may have a low-friction outer layer, for example a hydrophilic coating, to minimise frictional resistance during deployment and retrieval of thefilter 1, and thefilter body 2 may be of an oriented polymeric material, as described in International patent application No. PCT/IE01/00087, the relevant contents of which are incorporated herein by reference. - The
inner tube 8 has aguidewire lumen 12 therethrough for passing thefilter 1 over a guidewire 10 (FIGS. 2 to 16). Aguidewire 10 can pass through the filter, however, in the deployed configuration the filter is independent of the guidewire. Thus, the guidewire can be moved independently of the filter without any associated movement of the filter. The arrangement allows relatively large radial forces to be exerted on the vascular wall without the risk of abrasion causes by movement of the deployed filter. In this way damage to the endothelium can be avoided. - The
filter 1 is movable between a low-profile, collapsed configuration for movement through the vasculature, and an outwardly extended configuration for deployment in the vasculature in apposition with the vasculature wall. - In the outwardly extended configuration, the
filter body 2 is supported in an expanded position by thefilter support 3 so as to maximise the internal volume of thefilter body 2 to capture and safely retain as much embolic material as possible. - The
filter support 3 supports thefilter body 2 in the outwardly extended configuration in apposition with the vasculature wall to prevent blood flow bypassing thefilter 1 between thefilter body 2 and the vasculature wall. - The support frame in this case defines a
proximal support hoop 15 which is connected to thetubular member 8 by asupport arm 16. Thesupport 3 in this case also comprises a number of axially extendingportions 17 which assist in providing body support to the filter in a vessel and assist in preventing rotation of the filter when deployed in the deployed configuration. The support may be of wire and may also comprise one or more stabilising hoops(s) 18. - In this case the
tubular member 8 terminates proximally of thedistal end 5 of the filter. This has a number of advantages. It facilitates recrossing of thefilter 1 with a guidewire and the distal free end of thetubular member 8 may be readily snared for snaring and/or retrieval of the filter when it is desired to remove the filter from the vasculature. - In the outwardly extended configuration, the
filter support 3 exerts an outward radial force on thefilter body 2 and the vasculature wall which results in a frictional force between thefilter body 2 and the vasculature wall sufficient to retain thefilter 1 in position against substantial longitudinal movement. - In the invention the filter will not rotate or collapse in the absence of guidewire support. Conventional filters are coupled (directly or indirectly) to a wire—this wire enhances the stability of the filter. This invention describes a filter which will remain fully open and opposed to the vessel wall in the absence of any support from a guidewire. This is achieved by using a support frame which does not allow rotation in the vessel lumen. In general, a frame which lies in only one plane cannot remain apposed to the vessel wall without support from the guidewire. The design of the system is such that the filter must do considerable work to move longitudinally.
- In order to ensure that the filter is retained in position the filter apposition force generates a frictional force between the filter and the vessel. The frictional force generated by the filter is dependent on the contact area, the apposition force generated by the filter and the coefficient of static friction between the filter and the vessel. Locating the filter using frictional forces alone is a worst-case analysis as it does not include the effect of tapered vessels. These will increase the apposition force generated by the filter as it moves distally into a lumen of decreasing diameter.
- The radial apposition force of the
filter support 3 is sufficient to retain the deployedfilter 1 in position in the vasculature against substantial longitudinal movement, even if the guidewire, over which thefilter 1 is delivered, is moved. No step, abutment or other stop means is required on the guidewire to prevent thefilter 1 from migrating downstream in the vasculature. In this manner, the invention enables an interventional procedure to be performed using a standard guidewire. This enhances clinician freedom by enabling a clinician to choose the most appropriate medical guidewire for a particular interventional procedure, and/or a particular patient anatomy. - In the case of a filter which has an integral tubular member the tubular member defines a lumen through which a guidewire can pass. In the invention such a guidewire passageway may be provided by a component of the delivery system such as a portion of a deployment pusher. Alternatively, the tubular member may be a separate component which is removed after the guidewire has passed through the filter. Thus, the member defining a guidewire pathway through the filter may be a movable or removable component.
- Referring to FIGS. 2 to 16 there are illustrated various steps in the use of an embolic protection device during an interventional procedure. Various steps in the method will be described and it will be appreciated that the various steps and the features of the various apparatus used in the method may be used independently of one another, for example in the methods and apparatus of other aspects of the invention.
- The filter does not necessarily itself have a predetermined lumen for passage of a guidewire. At various stages a lumen is defined when such a lumen is required. On loading of a
filter 20 into a delivery catheter 21 a guidewire lumen is defined (FIG. 2 ) which is used for delivery of thefilter 20 over a pre-positioned guidewire 10 (FIG. 3 ). The lumen-definingmember 22 may be removed (FIG. 3 ) and the filter is advanced to and deployed distal to a treatment location in the vasculature (FIGS. 4 and 5 ). Various procedures may be carried out such as balloon angioplasty and stenting with a stent 29 (FIGS. 6 and 7 ). The filter may be retrieved into a retrieval catheter 25 (FIGS. 11 to 15) and the filter removed. proximal end of thesheath 210 overlaps the distal end of theshaft 212, and amarker band 213 is located at the distal end of theshaft 212 between theshaft 212 and thesheath 210. - The
actuator wire 209 extends distally through anactuator lumen 232 in thehypotube 205, out of theactuator lumen 232 at the distal end of thehypotube 205, externally along thepusher 206 to the proximal end of theshaft 212. Thewire 209 is attached to the exterior surface of theshaft 212, for example by bonding. By attaching thewire 209 to the exterior of theshaft 212, this arrangement provides for more space within thepusher lumen 216 for guidewire passage. In addition, attachment of theactuator wire 209 to the exterior of theshaft 212 is an easier step to achieve from a manufacturing viewpoint than attachment to the interior of the relativelylong shaft 212. - The restraining
sheath 210 and theconnector shaft 212 are movable in a sliding manner relative to thecatheter body 202. When thesheath 210 extends distally of a distal end of thespring pusher 206, thesheath 210 defines aninternal reception space 211, as illustrated in FIGS. 36 to 38. A collapsedembolic protection filter 231 may be received within thereception space 211, where thefilter 231 will be restrained by thesheath 210 in a low-profile configuration during delivery to a desired site in a vasculature. A suitable material for thesheath 210 is polyethyleneterephthalate (PET). - The distal end of the
shaft 212 is flared outwardly at 237 (FIG. 38 ). During delivery of thefilter 231, the distal end of thepusher 206 is spaced proximally of the distal end of theshaft 212, and the proximal end of an innertubular member 236 of the filter is partially inserted into the flaredshaft 212. This arrangement provides a bridge in stiffness between the relativelystiff shaft 212 and the relatively stiff innertubular member 236 of thefilter 231. Thus the possibility of buckling of the relativelyflexible sheath 10 is minimised. The distal end of thepusher 206 is engagable with the innertubular member 236 of thefilter 231 upon retraction of thesheath 210 to deploy thefilter 231 out of thereception space 211. - As illustrated in
FIG. 39 , at theproximal end 203 of the catheter 200 adistal handle 208 is provided for gripping thecatheter body 202 and aproximal handle 214 is provided for gripping theactuator wire 209. Thedistal handle 208 is injection moulded over thehypotube 205 and theproximal handle 214 is crimped to the proximal end of thewire 209. - The
handles proximal handle 214 sliding within thedistal handle 208. Movement of thehandles annular protrusion 233 on theproximal handle 214 against the proximal end of thedistal handle 208 prevents further movement of theproximal handle 214 distally relative to thedistal handle 208. Engagement of ashoulder 234 on theproximal handle 214 with an inwardannular protrusion 235 on thedistal handle 208 prevents further movement of theproximal handle 214 proximally relative to thedistal handle 208. Areleasable safety clip 237 is provided to maintain thehandles - When the
catheter 200 is assembled thesheath 10 is directly connected to theProximal handle 214, and thepusher 206 is directly connected to thedistal handle 208. Movement of theproximal handle 214 proximally relative to thedistal handle 208 moves thewire 209, theconnector shaft 212 and thesheath 210 proximally relative to thepusher 206 to facilitate deployment of thefilter 231 from within thereception space 211. - The
delivery catheter 200 may be used to deliver theembolic protection filter 231 through a vasculature and to deploy theembolic protection filter 231 downstream of a stenosed region in the vasculature to prevent potentially harmful emboli, which may be released into the blood stream during treatment of the stenosis, such as by a stenting procedure, from migrating further through the vascular system. - Referring to FIGS. 40 to 54 the use of the
delivery catheter 200 will now be described in relation to afilter 301 of the invention which hastubular member 306 with a distal end that is spaced proximally from the distal end of the filter. Such as arrangement facilitates removal replacement of a guidewire and can also be readily snared and retrieved as described herein. - In use, a
loading device 310 is partially inserted into thereception space 211 of thesheath 210. A pushingdevice 311 is then threaded through thetubular member 306 of thefilter 301 and extended into thereception space 211, as illustrated inFIG. 40 . - By moving the pushing
device 311 proximally, anengagement stop 312 on the pushingdevice 311 engages the distal end of thetubular member 306 and thefilter 301 is moved towards the loading device 310 (FIG. 410 ). Continued proximal movement of the pushingdevice 311 pushes thefilter 301 through theloading device 310, thereby collapsing thefilter 301, and pushing it into the reception space 211 (FIG. 41 ). - The
catheter 200 with thecollapsed filter 301 received within thereception space 211 are then moved together proximally away from the loading device 310 (FIG. 42 ). - The method of collapsing the
filter 301 and loading thefilter 301 into thereception space 211 is similar to that described in International patent application number PCT/IE01/00052, the relevant contents of which are incorporated herein by reference. - Next the
guidewire 222 is inserted into avasculature 315 and advanced through thevasculature 315 until theguidewire 222 has crossed a site of interest in the vasculature 315 (FIG. 44 ). A typical site of interest is a stenosed ordiseased region 316 of thevasculature 315. Thedelivery catheter 200 is then threaded over theguidewire 222 by inserting the proximal end of theguidewire 222 into theguidewire lumen 216 at the distal end of thepusher 206, through thelumen 216, and out of thelumen 216 through theproximal guidewire opening 217. Thecatheter 200 is advanced over theguidewire 222 in a rapid-exchange manner until thereception space 211 is located downstream of the stenosis 316 (FIG. 45 ). - To deploy the
filter 301 at the desired site in thevasculature 315 downstream of thestenosis 316, theproximal handle 214 is moved proximally while holding thedistal handle 208 fixed, thereby causing thepull wire 209 and theconnector shaft 212 to be pulled proximally. Because theconnector shaft 212 is attached to thesheath 210, thesheath 210 also moves proximally while thepusher 206 does not move. In this way, thecollapsed filter 301 is uncovered by thesheath 10 while the distal end of thepusher 206 abuts the proximal end of thetubular member 306 of thefilter 301. Thedelivery catheter 200 thus enables the self-expandingfilter 301 to expand outwardly to a deployed configuration. The distal end of thepusher 6 acts as an abutment for a controlled, accurate deployment of thefilter 301 at the desired site in thevasculature 315. - When the
filter 301 has been fully deployed at the desired site in thevasculature 315, thedelivery catheter 200 is withdrawn from thevasculature 315 over theguidewire 222 in a rapid-exchange manner to leave the deployedfilter 301 in place in the vasculature 315 (FIG. 48 ). - Various procedures can be carried out using the guidewire such as an angioplasty using a balloon 320 (
FIG. 49 ) or a stenting procedure with a stent 321 (FIG. 50 ). On completion of the procedures a retrieval device such as aretrieval catheter 325 or snare may be used to retrieve the filter (FIGS. 51 to 53). Theguidewire 222 may be left in place or removed. - In FIGS. 55 to 57 there is illustrated another
delivery catheter 600 according to the invention, which is similar to thedelivery catheter 200 and similar elements are assigned the same reference numerals. In this case the distal end of theshaft 212 is not flared outwardly, and the proximal end of the innertubular member 206 is not inserted into theshaft 212, during delivery of theembolic protection filter 610. - Instead a bridging
sleeve 601 is provided mounted around theshaft 212 distally of themarker band 213, as illustrated inFIG. 57 . Thesleeve 601 extends distally of the distal end of theshaft 212, such that the proximal end of the innertubular member 306 of thefilter 610 may be partially inserted into thesleeve 601 during delivery of the filter 610 (FIG. 57 ). This arrangement provides a bridge in stiffness between the relativelystiff shaft 212 and the relatively stiff innertubular member 306 of thefilter 610. Thus the possibility. of buckling of the relativelyflexible sheath 210 is minimised. - It is noted that the
filter 610 is of a different configuration to the filter described previously. In particular the innertubular member 306 of thefilter 610 does not have any step formations or protrusions at the proximal end of the innertubular member 306. - The delivery catheter of the invention is also suitable for over-the-wire exchange over a guidewire. The rapid exchange configuration is not essential.
- Referring to FIGS. 58 to 61 there is illustrated one means of temporarily providing a tubular lumen in a filter to facilitate delivery of the filter to a desired location. In this case an introducer tool is in the form of a C-shaped
tubular member 60 with a distal peel-back feature 61. The tool is inserted into the distal end of thefilter 62 as illustrated inFIG. 58 . The filter is loaded into adistal pod 63 of a delivery catheter 64 (FIG. 58 ) and the distal end of thedelivery catheter 64 is threaded over the proximal end of a deployedguidewire 65. When the guidewire has passed through thefilter 62 theintroducer 60 may be pulled away and removed as illustrated inFIG. 61 . - In another arrangement illustrated in FIGS. 62 to 65 the
delivery catheter 70 may itself be provided with amember 71 defining a temporary tubular member for a guidewire. The tubular member may also function as a pusher. In one case once the guidewire has traversed thefilter 62 thetubular member 71 may be positioned proximal of the filter during delivery and deployment (FIGS. 63 to 65). In another case (FIGS. 66 to 68) thetubular member 71 may extend through the filter up to the stage when the delivery catheter is being withdrawn. - The
pusher 71 may pass through the centre (FIGS. 71 and 72 ) of the filter or may run beside the filter (FIGS. 69 and 70 ). - In
FIGS. 73 and 74 , there is illustrated anotherembolic protection filter 520 according to the invention. In the case offilter 520, theguidewire lumen 521 through thefilter 520 is defined by twotelescoping tubes proximal tube 522 is fixed to thefilter 520 at the proximal end of thefilter 520, and thedistal tube 523 is fixed to thefilter 520 at the distal end of thefilter 520. - In the deployed configuration of
FIG. 73 , thedistal tube 523 telescopes proximally over theproximal tube 522 so that the overall parking space of thefilter 520 in a vasculature is minimised. In addition thedistal tube 523 is spaced distally of theguidewire aperture 112 to facilitate crossing of thefilter 520 with a guidewire without requiring the guidewire to be threaded through thetubes - In the collapsed configuration of
FIG. 74 , thedistal tube 523 telescopes distally over theproximal tube 522 so that theguidewire lumen 521 is defined through the entire length of thefilter 520 when collapsed, for example in apod 524 of adelivery catheter 525. - The invention also envisages the use of a
delivery catheter 650, as illustrated in FIGS. 75 to 89, which is particularly suitable for delivering anembolic protection filter 651, as illustrated inFIG. 77 , thefilter 651 not having an inner tubular member to: define a guidewire lumen through thefilter 651. - The
delivery catheter 650 comprises an outertubular member 652, and an innertubular member 653, the innertubular member 653 being movable distally relative to the outertubular member 652 from a delivery configuration (FIG. 76 ) to a deployment configuration (FIG. 78 ). - In the delivery configuration, the
catheter 650 defines areception space 654 for receiving thefilter 651 in a collapsed configuration, as illustrated inFIG. 77 . When the innertubular member 653 is moved distally relative to the outertubular member 652, thefilter 651 is pushed distally out of thereception space 654 by means of an engagement between ashoulder 655 of the innertubular member 653 and thecollapsed filter 651. - The invention provides features to enable a guidewire to be repositioned across the filter. It may be necessary to be able to replace the guidewire if the wire became accidentally withdrawn by the user during the procedure. It may then be necessary to replace the wire in order to access the lesion with other devices such as a balloon or stent catheter or even the filter retrieval catheter. Merely advancing a wire up to the filter is unlikely to provide sufficient support in all cases. Guidewire replacement may also be needed if the user desires to use a wire with different properties during the procedure. For example a very torqueable wire may be ideal for initially accessing and crossing the lesion, and may have adequate support to enable the filter to be delivered and deployed, but may not have sufficient support to enable a stiffer stent delivery system to reach the lesion. The invention facilitates removal of the first wire and replacement with a more supportive guidewire to facilitate use of the stent delivery system. This may be achieved without having to use an additional exchange catheter.
- This invention describes a filter which comprises a guidewire recrossing feature, wherein this feature may comprise some or all of a guiding funnel, a pathway and a blood restrictor. A guiding funnel is used as this operation will be performed “blind”. In general, it would be difficult to replace a guidewire through a tubular lumen while the filter is in the patient. In the invention the guidewire may be passed through the distal filter neck. The distal cone of the filter will act as a guiding channel. However the guidewire tip is very flexible—if it is to open a “valve” or blood restrictor it will need to have good push. In order to provide this push it is necessary to restrain the guidewire tip within a relatively narrow channel—this channel is provided by the filter neck. A restrictor may be provided to prevent any loss of embolic material while the first guidewire was absent—during which period the neck of the filter would be an open hole if no restrictor were present. This restrictor is intended simply to close and prevent blood flow in the absence of a guidewire. Once there is no blood flow through the filter neck embolic material will not collect there and will not restrict the passage of the second guidewire.
- Various guideways may be provided for a guidewire to assist crossing of a filter. Referring to FIGS. 79 to 81 the pathway may be provided around the filter, for example in a
side channel 80. Aradiopaque feature 81 may be provided on the filter to guide a user to the passageway. Alternatively the pathway may be through the filter to a single exit 82 (FIG. 82 ), a separate exit 83 (FIG. 83 ) or through thesame exit 84 using a shortenedtubular member 85 illustrated inFIG. 84 and described in more detail herein. In these cases the guidewire passage/hole may be sealed to prevent passage of embolic therethrough as will be described in more detail below. - Referring now to FIGS. 85 to 92, there is illustrated another embolic,
protection filter 150 according to the invention. Thefilter 150 comprises a receiver to guide a docking device into association with thefilter 150. In this case, the receiver is configured to guide a guidewire, such as theguidewire 130, into theguidewire lumen 112. The receiver is provided by afunnel 151 which diverges outwardly proximally, thefunnel 151 being mounted to thefilter 150 to extend proximally of the inlet end of thefilter 150. - In this specification, the term funnel will be understood to mean any orifice with a cross-sectional area that decreases with distance.
- The
funnel 151 may comprise a collapsible funnel body in the form of amembrane 152, which in this case is supported by a collapsible funnel support, in the form of a plurality ofsupport fingers 153. Thefingers 153 are pivotally mounted to thefilter 50 and are biased to move thefilter membrane 152 from a collapsed configuration for movement through the vasculature, to an outwardly extended configuration for guiding theguidewire 130, as illustrated inFIG. 86 . Thefunnel 151 may be of a radiopaque material. - The
funnel 151 may be used to guide theguidewire 130 along a pathway that enables theguidewire 130 to cross thefilter 150. Thefunnel 151 allows the procedure of leading thesmall diameter guidewire 130 through the small diameter guidewire lumen of thefilter 150 to be performed more easily by guiding the tip of theguidewire 130 towards the proximal end of theguidewire lumen 158. - Use of the
funnel 151 is particularly beneficial in the case where it is desired to lead theguidewire 130 through the guidewire lumen while thefilter 150 is deployed in the vasculature, as illustrated in FIGS. 87 to 89. The funnel. 11 enables a clinician to accurately and quickly thread theguidewire 130 through the guidewire lumen without risk of puncturing the filter body or of disturbing thefilter 50 from its deployed position in the vasculature in apposition with the wall of the vasculature. - The
filter 150 further comprises at least one, and in this case two,seals guidewire lumen 158 to prevent embolic material from passing through theguidewire lumen 158, when thefilter 150 is in use in the vasculature. - The
seals seal 160 located at the proximal end of thefilter 150, and theother seal 161 located at the distal end of thefilter 150. - The
proximal seal 160 may be in the form of a tubular member of a soft membrane material. Theguidewire lumen 158 extends through thetubular seal 160 and theseal 160 is closable down to seal theguidewire lumen 158. - The
distal seal 161 is in the form of a tubular member with two or more, and in this case seven, circumferentially overlapping flaps, as illustrated inFIG. 92 . Thisseal 161 is also closable down to seal theguidewire lumen 158. - It will be appreciated that the
guidewire lumen 158 can be provided as any suitable passageway through thefilter 150. Theguidewire lumen 158 does not have to be located along the central axis of thefilter 150. Theguidewire lumen 158 may be radially offset from the longitudinal axis of thefilter 150. - When the
guidewire 130 is extended through theguidewire lumen 158, theseals guidewire 130 to prevent emboli flowing through the.guidewire lumen 158. Upon removal of theguidewire 130 from theguidewire lumen 158 while thefilter 150 is deployed in the vasculature, theseals guidewire lumen 158. - In this manner, the
seals guidewire lumen 158. All blood flows into the filter body through the inlet openings and out of the filter body through the small outlet openings, thereby trapping and safely retaining the undesired embolic material within thefilter 150. - After an embolic protection filter has been delivered over a guidewire and deployed in a vasculature, it is not always possible to withdraw the guidewire from the vasculature before collapsing and withdrawing the filter from the vasculature.
- However in some cases it may be necessary to withdraw the guidewire over which the filter was delivered while leaving the filter deployed in the vasculature.
- Examples of when this need may arise are:
-
- when a high torque guidewire is used to facilitate filter delivery and deployment, and a stiffer guidewire is subsequently used to provide additional support during delivery and deployment of a stent;
- when a guide catheter has prolapsed;
- when a guidewire is withdrawn into a guide catheter to accelerate rate of resolution of a spasm.
- When this need does arise, the
filter 150 of the invention may be used to filter potentially harmful emboli from a vasculature when the guidewire is withdrawn, while the filter remains deployed in the vasculature, as illustrated in FIGS. 93 to 110. - A
first guidewire 130 is introduced into and advanced through thevasculature 121 to cross the treatment location 122 (FIG. 93 ), and thefilter 150 is delivered through thevasculature 121 and deployed distally of the treatment location 122 (FIGS. 94 to 97), in a manner similar to that described previously. - In the outwardly extended configuration, the deployed
filter 150 is retained in position in thevasculature 121 against substantial longitudinal movement by the radial apposition force of the filter body against the wall of thevasculature 121. Thefirst guidewire 130 can thus be withdrawn from the guidewire lumen of thefilter 150, and completely withdrawn from thevasculature 121 without disturbing the outwardly extended configuration of thefilter 150 in thevasculature 121. - The deployed
filter 150 is retained in position in thevasculature 121 against substantial longitudinal movement by means of the radial apposition force exerted by the filter support on the filter body and the vasculature wall, as described previously. - A
second guidewire 140 is then introduced into thevasculature 121 and advanced through thevasculature 121 until thesecond guidewire 140 crosses the desiredtreatment location 122. The tip of thesecond guidewire 140 is guided towards the proximal end of the guidewire lumen by engagement of the guidewire tip with thefunnel 151, and thesecond guidewire 140 is then lead through the guidewire lumen. - A
stent 136 may then be delivered through thevasculature 121, and deployed at thetreatment location 122 using thestent delivery catheter 135. In this case, thestent delivery catheter 135 passes over thesecond guidewire 140. After completion of the interventional procedure, theretrieval catheter 120 is advanced to cross thestent 136 and thetreatment location 122, and the tip 125 is engaged with thefilter 150. As the tip 125 passes through thefunnel 151, thefunnel 151 is caused to collapse down to the collapsed configuration. Thefilter 150 is then collapsed and retrieved into theretrieval catheter 120 and withdrawn from thevasculature 121. Upon collapse of thefilter 1, the apposition of the filter with thevasculature 121 is released. - The
filter 150 ensures any embolic material generated during the interventional procedure is captured and safely removed from thevasculature 121. - The
second guidewire 140 may be of a different diameter, or have different material properties to thefirst guidewire 130. It may thus be easier or more suitable for the clinician to advance thestent delivery catheter 35 over thesecond guidewire 140 rather than over thefirst guidewire 130. For example, it is sometimes the case that ahigh torque guidewire 130 is used to facilitate filter delivery and. deployment, and astiffer guidewire 140 is used subsequently to provide additional support during delivery and deployment of a stent. - In some cases, it may be necessary or desirable to withdraw the
second guidewire 140 from thefilter 150 and thetreatment location 122 after deployment of thestent 136, and then to advance a third guidewire through thevasculature 121 to the filter, theretrieval catheter 120 then being advanced over the third guidewire to retrieve thefilter 150. This invention enables such a procedure to be carried out. - Furthermore withdrawing a guidewire into a guide catheter may accelerate the resolution of spasm and reduce the risk of ischaemia.
- Referring to FIGS. 111 to 114, there is illustrated another retrieval catheter according to the invention, which is similar to the retrieval catheter of FIGS. 190 to 192. In this case, the
catheter body 323 defines aguidewire lumen 351 radially offset from thecoupling member 324. Theguidewire lumen 351 extends through only part of thecatheter body 323 to facilitate passage of thecatheter body 323 over a guidewire, such as theguidewire 340, in a rapid exchange manner. - In use, the
retrieval catheter 350 may be used to retrieve the filter deployed in thevasculature 321. - In one possible procedure, the
second guidewire 340 is not led through theguidewire lumen 312 of the filter. Instead thesecond guidewire 340 is advanced until theguidewire 340 has crossed the treatment location and the guidewire tip is proximally of the filter (FIG. 113 ). The filter is then retrieved into thecatheter body 323. During this procedure theretrieval catheter 350 may be advanced distally off the end of theguidewire 340. -
FIG. 115 illustrates anotherfilter 170 according to the invention. In this case, thefunnel 151 is mounted to thefilter 170 distally of the inlet end of thefilter 170, so that thefunnel 151 is located at least partially within thefilter 170. - It will be appreciated that the receiver may be detachably mounted to the filter. For example, the receiver may be mounted to the filter after deployment in a vasculature, and/or may be detached from the filter before retrieval of the filter from a vasculature.
- In addition, the receiver may be radially offset from the longitudinal axis of the filter.
- Referring to
FIGS. 116 and 117 , there is illustrated anotherfilter 180 according to the invention. The funnel is provided, in the case offilter 180, by slopingwalls 181 of the filter body at the inlet end. As theguidewire 130 is advanced to thefilter 180, the tip of theguidewire 130 meets the slopingwalls 181 of the filter body and is guided distally inwardly towards the proximal end of the guidewire lumen. In this manner, the slopingwalls 181 enable theguidewire 130 to be easily and quickly threaded into the guidewire lumen. - The angle of inclination a of these sloping
walls 181 can be altered, as indicated inFIG. 117 , to suit the characteristics of the interventional procedure, and/or the vasculature, and/or the guidewire. - The large inlet openings enable substantially unrestricted flow into the filter body, and the
sloping walls 81 may be radiopaque material to aid guidewire passage. -
FIG. 118 illustrates afurther filter 190 according to the invention. In this case, thefilter 190 has aguidewire aperture 192 for passing thefilter 190 over theguidewire 130, and thefilter 190 has a single,large inlet opening 191 at the inlet end of thefilter 190. The single,large inlet opening 191 provides no resistance to blood flow into the filter body. - The sloping
walls 192 at the outlet end of thefilter 190 provides, the funnel, in this case, to guide theguidewire 130 towards theguidewire aperture 192. - It will be appreciated that the outlet openings are smaller, in this case, than the guidewire diameter, thus the
guidewire 130 does not snag or pass through the outlet openings but instead theguidewire 130 is guided distally inwardly to theguidewire aperture 192. - The
filter 190 may have aguidewire aperture 192 for passing thefilter 190 over theguidewire 130, and thefilter 190 has a single,large inlet opening 191 at the inlet end of thefilter 190. The single,large inlet opening 191 provides no resistance to blood flow into the filter body. - The sloping
walls 190 at the outlet end of thefilter 190 provides the funnel, in this case, to guide theguidewire 130 towards theguidewire aperture 192, as illustrated inFIGS. 119 and 120 . - It will be appreciated that the outlet openings are smaller, in this case, than the guidewire diameter, thus the
guidewire 130 does not snag or pass through the outlet openings but instead theguidewire 130 is guided distally inwardly to theguidewire aperture 192. - As illustrated in FIGS. 119 to 121 the
filter 190 further comprises a distal seal at theguidewire aperture 192 in the form of an elastomeric self-sealingvalve 400. Thevalve 400 has co-operating flaps which meet centrally to close off theguidewire aperture 192 when the guidewire is not extended through theaperture 192, as illustrated inFIGS. 119 and 121 . As the guidewire is pushed through theguidewire aperture 192, the flaps of thevalve 400 are forced apart to permit passage of theguidewire 130, as illustrated inFIG. 120 . - It will be appreciated that the
valve 400 could alternatively be provided in the form of four, two, or any other number of co-operating flaps. - Referring to FIGS. 122 to 127 the guidewire exit hole may be sealed with a thin
flexible membrane 401 which can withstand any pressure differential across the filter but can be deformed by the guidewire tip to open the seal/membrane. Various options are possible such as those illustrated in FIGS. 123 to 126. - Another option is to provide a seal in the form of an invertible
flexible tube 402. The tube may haveslits 403 for additional flexibility.FIG. 128 shows an initial guidewire in position,FIG. 129 shows the wire removed and the tube collapsed, sealing the hole. InFIG. 130 a new wire is shown being advanced through the filter, the advancing of the wire pushing the tube out of the filter neck and forming a seal with the new wire as illustrated inFIG. 131 . The tube may be slits or slots for added flexibility as illustrated inFIG. 132 . - The guidewire exit hole may also be sealed by a flap valve or the like. Referring to FIGS. 133 to 135 a
closure flap 410 is hingedly connected to thefilter 411 by acurved lever 412. Thehinge point 413 is stepped back proximally from theflap 410 so that the pressure drop across theflap 410 does not cause theflap 410 to open. Theflap 410 is opened against the biasing of thelever 412 on insertion of aguidewire 415 as illustrated inFIGS. 134 and 135 . - It will be appreciated that the hinge may have a range of different constructions. For example, as illustrated in
FIG. 136 a hinge 416 may be provided by a flattened wire or ahinge 417 may be formed by a narrowing of the lever as illustrated inFIG. 137 . - In another embodiment illustrated in FIGS. 138 to 140 a
distal end 420 of a filter may have a flattenedneck section 421 which normally seals aguidewire aperture 422 but which can be opened to facilitate passage of awire 423. - A further embodiment is illustrated in FIGS. 141 to 143 in which the filter distal guidewire aperture has a foam-
like insert 425 with slits to facilitate deformation of the foam as aguidewire 426 is inserted whilst still maintaining a sealing engagement with theguidewire 426. - In the invention the retrieval device grips and retrieves the filter. Conventional filters are retrieved by using the guidewire to engage with the filter. This invention describes a retrieval device with one member which engages with and restrains the filter while a second member may envelop the filter. The retrieval device may function in the absence of a guidewire so that the filter can be retrieved even if the user has removed the guidewire and failed to replace it. This retrieval process may involve three stages: 1) Engage with the filter, 2) Decouple filter from vessel, 3) Retrieve the filter. Alternatively the retrieval may involve two stages: 1) Engage with the filter, 2) Retrieve the filter.
- The retrieval process is simple and reliable. The snare (or loop or lasso) designs described provide one of the most reliable and versatile methods. There is preferably a feature on the filter with which this snare will engage easily. This feature and the snare loop are preferably radiopaque for ease of visibility and positioning. For example a large radiopaque ball (or shepherds crook) inside the filter may be pulled proximal to the filter when snared and wrapped down.
- Referring in particular to FIGS. 144 to 149, there is illustrated a
retrieval catheter 620 according to the invention. Theretrieval catheter 620 is suitable for retrieving a filter, deployed in avasculature 621 distally of atreatment location 622, such as a region of stenosis. - The
catheter 620 comprises anouter catheter body 623 and a coaxialinner coupling member 624, thecoupling member 624 having means for coupling to the filter especially a filter deployed in thevasculature 621 to be retrieved. - The coupling means is provided, in this case, by an arrow-head shaped
tip 625 on thecoupling member 624. Thetip 625 has twomale fingers 626 for engagement with two correspondingfemale recesses 627 on thefilter 1. - The
male fingers 626 are moveable between a low-profile configuration and an outwardly protruding configuration for engagement with the filter. In this case, thefingers 626 are of a resilient material, and are biased towards the outwardly protruding configuration. - During introduction of the
retrieval catheter 620 through thevasculature 621, thetip 625 protrudes only partially distally of the distal end of thecatheter body 623, so that theresilient fingers 626 are maintained in the low-profile configuration. The protrudingtip 625 prevents snagging of the open mouth of thecatheter body 623 against any protruding parts of the vasculature wall. In addition thetip 625 tapers distally inwardly for a smooth crossing profile. - When the
retrieval catheter 620 has crossed thetreatment location 622, thecoupling member 624 is moved distally relative to thecatheter body 623, to release theresilient fingers 626 to move to the outwardly protruding configuration. Thecoupling member 624 is then moved further distally into the filter until thefingers 626 engage with therecesses 627 of the filter. - The
recesses 627 may be defined in a more pronounced manner by providing inwardly protruding steps or abutments on the proximal end of the filter support against which thefingers 626 may engage. - The
catheter body 623 is next moved distally relative to the engagedfilter 1 by maintaining the position of thecoupling member 624, the distal end of thecatheter body 623 is engaged with the proximal end of the filter body, thecatheter body 623 is further advanced and thus the coupledfilter 1 is collapsed down releasing the apposition force and is retrieved into thecatheter body 623. When thecollapsed filter 1 has been fully retrieved into thecatheter body 623, theretrieval catheter 620 is withdrawn with thefilter 1 from thevasculature 621. - The
coupling member 624 of theretrieval catheter 620 enables a deployed medical device, such as thefilter 1, to be retrieved into theretrieval catheter 620 with any retained embolic material within thefilter 1 without requiring a step, or a clamp or any special stop features on the guidewire. Thus theretrieval catheter 620 enables thefilter 1 to be used in combination with any standard guidewire. - In addition, it is not necessary to retract the guidewire to facilitate retrieval of the
filter 1. - In certain circumstances if the guidewire was withdrawn from the deployed
filter 1 it would still be possible to retrieve thefilter 1 using the retrieval catheter of the invention. This could speed up the overall procedure. Also in some cases it may be difficult to recross thefilter 1 with a guidewire. Furthermore by obviating the need to recross thefilter 1 with a guidewire, the possibility of a spasm being caused is minimised. - FIGS. 150 to 163 illustrate the
embolic protection filter 1 and theretrieval catheter 620 according to the invention, in use. - A
guidewire 630 is introduced into and advanced through thevasculature 621 until theguidewire 630 crosses the desiredtreatment location 622. Adelivery catheter 631 is then used to deliver theembolic protection filter 1 through thevasculature 621 over theguidewire 630, thefilter 1 being housed within adistal pod 632 of thedelivery catheter 631 in the collapsed configuration. - The
filter 1 may in one case be loaded into adelivery catheter 631 as described in International patent applications Nos. PCT/IE01/00052 and PCT/IE01/00053, the relevant contents of which are incorporated herein by reference. It will be appreciated that other loading alternatives are also possible. - When the
distal pod 632 has been advanced to a desired site distal to thetreatment location 622, thepod 632 is moved proximally relative to an inner pusher to deploy thefilter 1 out of thepod 632 into the outwardly extended configuration, as described in further detail in International patent applications Nos. PCT/IE01/00052 and PCT/IE01/00053. After complete deployment of thefiler 1, thedelivery catheter 631 is withdrawn from the vasculature 621 (FIG. 153 ). - In the outwardly extended configuration the
filter 1 is in apposition with thevasculature 621, thereby preventing blood flow from bypassing thefilter 1 between thefilter 1 and thevasculature 621. The radial apposition force of the filter support against the filter body and the wall of thevasculature 621 retains thefilter 1 in position against substantial longitudinal movement, even if theguidewire 630 is moved or indeed removed. In this way thefilter 1 is prevented from migrating downstream in thevasculature 621. - An interventional procedure is then carried out at the
treatment location 622. In the case illustrated, the interventional procedure is a stenting procedure using a self-expanding stent. However, a range of procedures are possible as alternatives to, or in addition to stenting, for example a balloon angioplasty procedure, a balloon-expandable stenting procedure, an atherectomy procedure, a lysis. - A
stent delivery catheter 635 is used to deliver a stent, such as aself expanding stent 636, through thevasculature 621, thestent 636 being held in a collapsed configuration by a restrainingsheath 637 of thestent delivery catheter 635. - When the
stent delivery catheter 635 has been advanced to thetreatment location 622, thesheath 637 is moved proximally relative to aninner body 638 of thecatheter 635 to facilitate deployment of thestent 636 at thetreatment location 622. - After complete deployment, of the
stent 636, thestent delivery catheter 635 is withdrawn from thevasculature 621, leaving the deployedfilter 1 and the deployedstent 636 in thevasculature 621. - Any embolic material generated during delivery or deployment of the
stent 636, or during withdrawal of the stent delivery catheter 639 is captured and safely retained in the deployedfilter 1. - After completion of the interventional procedure, the
retrieval catheter 620 is introduced into thevasculature 621, and advanced through thevasculature 621 until thestent 636 and thetreatment location 622 have been crossed. - The
filter 1 is simultaneously collapsed and retrieved into thecatheter body 623 of theretrieval catheter 620 and with it the captured embolic material, by engaging thetip 625 with thefilter 1, and then advancing thecatheter body 623 distally over thecoupling member 624 and the engagedfilter 1. - Upon collapse of the
filter 1, the apposition of thefilter 1 with thevasculature 621 is released. - When the
filter 1 has been fully collapsed and retrieved into theretrieval catheter 620, theretrieval catheter 620 with thecollapsed filter 1 and retained emboli therein are withdrawn from thevasculature 621, leaving the deployedstent 636 in place at thetreatment location 622 in thevasculature 621. - In this way, the
filter 1 may be used to capture and safely remove any embolic material which has been generated during the interventional procedure. - An expandable balloon may be provided on the filter to enhance the outward radial force on the vasculature wall to retain the filter in position against substantial longitudinal movement. In use, the balloon may be inflated after deployment at the desired site in the vasculature to effectively anchor the filter in position. The balloon may be subsequently deflated before retrieval of the filter.
-
FIGS. 164 and 165 illustrate anotherembolic protection filter 680 according to the invention. Thefilter 680 comprises acapture tether 681 which extends externally of the filter body from aproximal ring 682, to which thetether 681 is fixed, to adistal capture hoop 683. Thecapture hoop 683 is located around the distal core at the outlet end of thefilter 680 when thefilter 680 is in the outwardly extended. configuration, as illustrated inFIG. 164 . Thecapture hoop 683 is slidable over the filter body. To collapse and retrieve thefilter 680 into the retrieval catheter, thecoupling member 684 engages thecapture tether 681 and causes thecapture hoop 683 to move proximally. Thecoupling member 684 may be engaged with thecapture tether 681 using a hook, or loop, or any other suitable coupling means, as described previously. In this manner thefilter 680 is compressed for retrieval into thecatheter body 681, as illustrated inFIG. 165 . - The coupling means may alternatively be provided by a male member in the form of a
hook 700, as illustrated inFIG. 166 for hooking around a receiver on thefilter 1. Thehook 700 may be used to couple thecoupling member 684 to any suitably configured embolic protection filter. - For example, an
embolic protection filter 710, illustrated inFIGS. 168 and 169 , has atether arm 711 at a proximal end of thefilter 710 around which thehook 700 may be extended to couple the deployedfilter 710 with thecoupling member 684 and thereby facilitate retrieval of thefilter 710 into thecatheter body 687. - FIGS. 170 to 173 illustrate further
embolic protection devices - The
filter 720 ofFIG. 170 has threetether arms 721 which extend radially inwardly from the filter body to meet at acentral point 722. Thehook 700 may be extended around any one of thetether arms 721 to couple thecoupling member 684 to thefilter 720. This tether arrangement enables thefilter 720 to be retrieved with a central, axial pull force. - In the
filter 725 ofFIG. 172 , the threetether arms 726 extend radially inwardly and distally to thecentral point 727. In this manner thecentral point 727 is stepped back distally from the single, large inlet opening to minimise the possibility of embolic material becoming caught or hung up on thetether arms 726. - The filter 730 of
FIG. 173 has a central ring 332 to which the tether arms 331 are fixed. - FIGS. 174 to 178 illustrate the
embolic protection filter 710, being retrieved into thecatheter body 684 usinggrasping jaws 906. In this case, thejaws 906 compriseserrated edges 750 to achieve a secure grasping of thetether arm 711. In this manner, thefilter 710 may be coupled to thecoupling member 684 and retrieved into thecatheter body 687. Theretrieval catheter 905 is withdrawn from the vasculature after retrieving thefilter 710 leaving theguidewire 689 remaining in the vasculature. - The tether arms of any of the above described embodiments may be mechanically attached at the central point, and/or at the central ring, and/or to the filter body, for example by bonding, or welding, or brazing. Alternatively the tether arms may be provided integral with the mesh/membrane of the filter body. The tether arms could also be provided as a fibre from such a mesh.
- In the
embolic protection filter 410 ofFIG. 179 thetether arm 411 is located within thefilter 410. To couple thecoupling member 684 to thefilter 410, thehook 688 is extended into thefilter 410 and hooked around thetether arm 411. - In the
filter 413 ofFIG. 180 , twotether arms 412 are provided. It will be appreciated that any suitable number of tether arms may be provided at either end of an embolic protection filter, and/or within the filter. - Referring to
FIGS. 181 and 182 , there is illustrated anotherembolic protection filter 500 according to the invention. - In this case, the
filter 500 comprises an innertubular member 502 to which the threetether arms 501 are fixed. Thetubular member 502 defines a guidewire lumen 503 therethrough for passing aguidewire 530 through the tubular member 502 (FIG. 181 ). - The
tubular member 502 extends through only part of thefilter 500. As illustrated inFIG. 182 , this enables theguidewire 530 to cross thefilter 500 without having to thread theguidewire 530 through the relatively small diameter guidewire lumen 503. - This configuration may be particularly advantageous when it is desired to cross the
filter 500 with a guidewire while thefilter 500 remains deployed in a vasculature. In this circumstance, the distal end cone of the filter body may act as a guide to guide theguidewire 530 through theguidewire aperture 112. - The
tubular member 502 of theembolic protection filter 510 illustrated inFIG. 183 also extends only partially through thefilter 510 to facilitate crossing of thefilter 510 with theguidewire 530 without requiring threading of theguidewire 530 through thetubular member 502. - It will be appreciated that any other suitable means. for coupling the deployed
filter 1 with thecoupling member 684 of the retrieval catheter may be employed to facilitate retrieval of thefilter 1 into thecatheter body 687, for example thecoupling member 684 may be provided with one or more female recesses for engagement with one or more corresponding male protrusions on thefilter 500. - Alternatively a female member on the
coupling member 684 may be provided in the form of aloop 701, as illustrated inFIG. 167 , for looping around a male stub. 702 protruding from thefilter 1. - Referring to FIGS. 184 to 189 there is illustrated another
retrieval catheter 905 according to the invention. In this case, thecoupling member 684 comprises a pair ofjaws 906 at the distal end of thecoupling member 684. Thejaws 906 are movable between an outwardly protruding configuration (FIG. 186 ) and a low-profile configuration (FIG. 187 ) to grasp thefilter 1. - The
jaws 906 are biased towards the low-profile configuration and may be moved outwardly by moving an innerelongate actuator 907 longitudinally distally relative to thejaws 906 to engageelbows 908 on thejaws 906 and thereby move thejaws 906 outwardly in a camming arrangement (FIG. 186 ). - The
jaws 906 define a recessedportion 909 a for co-operation with a protrudingneck 909 b on the proximal end of the filter during grasping of the filter, as illustrated inFIG. 187 . - In use, the
retrieval catheter 905 is advanced through the vasculature in the low-profile configuration until thejaws 906 are proximally adjacent to the deployedfilter 1. Theactuator 907 is then moved distally relative to thejaws 906 to cam thejaws 906 open, and the openedjaws 906 are advanced until the recessedportion 909 a of thejaws 906 are around the protrudingneck 909 b of the filter. By moving theactuator 907 proximally relative to thecoupling member 684 thejaws 906 are released to move inwardly to grasp thefilter 1 around theneck 909 b. The grasped filter may then be retrieved into thecatheter body 687 by moving thecatheter body 687 distally relative to thecoupling member 684. - It will be appreciated that the
jaws 906 may grasp any suitable part of the filter to facilitate retrieval. For example, thejaws 906 may grasp the filter at the inlet openings, as illustrated inFIGS. 188 and 189 . - As illustrated in FIGS. 190 to 191, the
jaws 906 may alternatively be biased outwardly. During advancement of theretrieval catheter 905 through the vasculature, thejaws 906 are restrained in the low-profile configuration by the catheter body 687 (FIG. 190 ). To move thejaws 906 outwardly, thecoupling member 684 is moved distally relative to thecatheter body 687 to release thejaws 906 to spring outwardly (FIG. 191 ). - To subsequently move the
jaws 906 inwardly when the recessedportion 909 a of thejaws 906 are around the protrudingneck 909 b of thefilter 1, thecatheter body 687 is moved distally relative to thecoupling member 684 to engage thejaws 906 and move thejaws 906 inwardly to grasp the filter around theneck 909 b. The filter is then retrieved into thecatheter body 687 by advancing thecatheter body 687 further distally relative to thecoupling member 684 and the grasped filter (FIG. 192 ). - Alternatively, the
coupling member 684 may have amagnetic tip 686 for magnetic coupling to an oppositely charged magnetic portion of thefilter 1. -
FIGS. 193 and 194 illustrate anotherretrieval catheter 940 according to the invention. In this case, theretrieval catheter 940 comprises asecond coupling member 941, which is movable relative to thefirst coupling member 684. In this way, thesecond coupling member 941 may be used to axially elongate an element of the deployed filter, such as the filter support frame, to collapse the filter to the low-profile configuration for retrieval into thecatheter body 687. In this case, thesecond coupling member 941 acts as a pusher and is movable distally relative to thetip 686. By engaging thetip 686 with the filter support and then moving thesecond coupling member 941 distally to engage a distal end of the filter support, the filter support is axially elongated and the filter is collapsed from the outwardly extended configuration ofFIG. 194 to the collapsed configuration. - The collapsed filter may then be retrieved by moving the
catheter body 687 distally relative to thetip 689 and the engaged filter. - Referring to FIGS. 195 to 201 there is illustrated another filter retrieval system of the invention. In this case a snare type retrieval is used for a
filter 850 with aguidewire 851 extending through atubular member 852. Thetubular member 852 has a projectinghead portion 853 with an associatedmarker band 854 for engagement by a lasso orloop 855 delivered through aretrieval catheter 856 into which the filter is retrieved as illustrated. - Another embodiment is illustrated in FIGS. 202 to 206 which is used for retrieval of a
filter 860 which does not have a tubular member. In this case the filter frame has asnare receiving projection 861 which is engaged by a snare lasso/loop 862 and thefilter 860 is retrieved into aretrieval catheter 863, as illustrated. - FIGS. 207 to 212 illustrate an embodiment in which a
filter 870 is used which has a partialtubular member 871 but the guidewire does not extend through the tubular member. This arrangement is similar to that of FIGS. 195 to 201 above and like parts are assigned the same reference numerals. The snare loop is in this case free of the guidewire and may be more easily manipulated. In both cases the snare loop may be rendered radiopaque to facilitate snaring with the filter for retrieval. - Further retrieval devices are illustrated in FIGS. 213 to 218 in which the retrieval devices have
arms 950 which open out when anouter sheath 951 is retracted and thus create a large inlet mouth which can readily trap the filter frame, particularly if radiopaque features such as marker bonds are used. When thearms 950 are in position distal to the snare feature of the frame/filter the arms are closed again, for example by re-advancing asheath 951 which collapses thearms 950 and trapstether feature 952 of the filter, for example behind a step or tooth on the arm(s). - Referring to FIGS. 219 to 224 the filter frame may have a retrieval feature such as a
nodule 960 which may be engaged by a suitable snare such as a snare loop or lasso 961 which is then tightened or simply pulled back to collapse the frame and retrieve the filter. The centeringtip 962 may be used to assist guiding of the snare loop. - Various alternative filter designs with an integral snare feature are possible. For example, in
FIGS. 225 and 226 the filter frame has a projectingarm 970 which may be engaged by a snare. - An
expandable engagement member 971 may be used to catch a drawstring type arrangement 972 (FIGS. 227, 228 ) or to catch internal wires/tethers/fibers/strings of the filter (FIGS. 229, 230 ). - Referring to
FIGS. 231 and 232 there is illustrated the size of asnare 990 to snare afilter 991. The snare engagable features of the filter in this case are provided byindents 992 in the support arms over which thesnare loop 990 is engaged. - The snaring of a filter of any type is illustrated in FIGS. 233 to 237. In this case the
filter 995 is positioned distal to astent 996 and asnare loop 997 is advanced through the stent to engage the filter as illustrated, allowing the filter to be at least partially collapsed for retrieval. - In
FIGS. 238 and 239 there is illustrated the snaring of afilter 1 as illustrated inFIG. 1 using asnare loop 998. - A further
embolic protection filter 750 according to the invention is illustrated inFIGS. 240 and 241 . Thefilter 750 comprises a collapsiblefilter support structure 751 and acollapsible filter body 752. - In the expanded, deployed configuration of
FIG. 240 , thesupport structure 751 does not have an inner tubular member to define a guidewire lumen for passing aguidewire 753 through. When thefilter 750 is collapsed, the support structure collapses down into a smaller diameter tubular structure, as illustrated inFIG. 241 . In this collapsed configuration, thesupport structure 751 defines the guidewire lumen for theguidewire 753. In this manner thesupport structure 751 isolates thefilter body 752 from theguidewire 753, and thus prevents thefilter body 752 from becoming fixed to theguidewire 753 during delivery or retrieval of thefilter 750. - The
filter 750 may be retrieved using any suitable means, such as aretrieval catheter 765 and a hook 766 (FIG. 242 ), in a manner similar to that described previously or aretrieval catheter 767 with a hoop 768 (FIG. 243 ), in a manner similar to that described previously. - If it is desired to remove the
guidewire 753 from thefilter 750 and recross thefilter 750 with asecond guidewire 754, theguidewire 754 may be threaded through one of the relativelylarge inlet openings 755 instead of through the relatively smallproximal collar 756 of thesupport structure 751, as illustrated inFIG. 244 . This enables a faster and more convenient means of recrossing thefilter 750. - In addition, the
distal collar 757 of thefilter support structure 751 is spaced proximally of the distal end of thefilter 750 to facilitate crossing of thefilter 750 with thesecond guidewire 754 without requiring theguidewire 754 to be threaded through the distal collar 757 (FIG. 244 ). - The
filter 750 can be retrieved after crossing thefilter 750 with thesecond guidewire 754 using any suitable means (FIGS. 245 and 246 ). - Referring to
FIGS. 247 and 248 , there is illustrated anotherembolic protection filter 760 according to the invention, which is similar to theembolic protection filter 750 ofFIGS. 240 and 241 , and similar elements inFIGS. 247 and 248 are assigned the same reference numerals. - The
filter 760 is longitudinally shorter than thefilter 750. In addition thefilter support structure 751 ends in an opendistal mouth 761 in thefilter 760 and no distal collar is provided in thefilter 760, as illustrated inFIG. 247 . - In the
filter 760, thefilter body 752 is isolated from theguidewire 753 by the collapsed filter support structure 751 (FIG. 248 ), in a manner similar to that described previously with reference toFIG. 241 . - The
filter 760 may be recrossed by thesecond guidewire 754 by threading theguidewire 754 through one of the relatively large inlet openings 755 (FIG. 249 ), in a manner similar to that described previously with reference toFIG. 244 . - Referring to FIGS. 252 to 253 the position of the
filter 1 in the vasculature may be controlled by anabutment 771 on aguidewire 772. By engaging theabutment 771 with an abutment surface on the filter, the filter is prevented from moving distally of theguidewire abutment 771. In this manner, the position of thefilter 1 in the vasculature may be controlled, if necessary. - The
abutment 771 may be fixedly attached to theguidewire 772 by a suitable means, such as by crimping, before introducing theguidewire 772 into the vasculature. Alternatively theabutment 771 may be fixed to theguidewire 772 during deployment of the filter. - As illustrated in
FIG. 254 thefilter 275 according to the invention may have atether 276 fixed to thefilter 275, extending proximally of thefilter 275. Thetether 276 may be used by a clinician to control the position of thefilter 275 in the vasculature from a location externally of the vasculature. Thetether 276 may be in the form of a wire, and may be of any suitable material. - In use, the
filter 275 may be deployed over aguidewire 277. If appropriate or necessary, theguidewire 277 may then be withdrawn from thefilter 275 and the vasculature. Thetether wire 276 may then be used as a platform for advancing further devices through the vasculature, for example the retrieval catheter. - Referring to FIGS. 255 to 259, there is illustrated another embolic
protection filter assembly 280 according to the invention. Theassembly 280 comprises a filter. 281 and a receiver to guide aguidewire 283 into theguidewire lumen 282. The receiver is provided, in this case, by anapproach channel 284 for theguidewire 283 in the form of a lumen in aseparate catheter 285. Thecatheter 285 has one or moreinflatable balloons 286 at the distal end of thecatheter 285. The shape and/or position of theballoons 286 is configured to ensure that the blood flow through thevasculature 287 will not be occluded upon inflation of the balloon(s) 286. In one case, thecatheter 285 has threeballoons 286 spaced circumferentially around thecatheter 285, as illustrated inFIG. 258 . In another case, thecatheter 285 has four circumferentially spaced balloons 286 (FIG. 259 ). - In use, the
catheter 285 is introduced into thevasculature 287 and advanced through thevasculature 287 until the catheter distal end is proximally adjacent thefilter 281FIG. 255 ). Theballoon 286 is then inflated until theballoon 286 engages the wall of thevasculature 287. By engaging theballoon 286 with the wall of thevasculature 287, thecatheter 285 is spaced from the wall of thevasculature 287 to assist in locating thecatheter approach channel 284 centrally in thevasculature 287. Theguidewire 283 may then be introduced into thechannel 284 and advanced through thecatheter 285. Because thechannel 284 is located centrally in thevasculature 287, theguidewire 283 is guided into theguidewire lumen 282 of thefilter 281 as it passes out of the distal end of thechannel 284. Theballoon 286 may be deflated to a low profile configuration during introduction and withdrawal of thecatheter 285 from thevasculature 287. - It will be appreciated that any number of seals may be provided to prevent embolic material passing through the guidewire lumen or the guidewire aperture, and the seals may be positioned at any suitable point along the guidewire lumen or the guidewire aperture.
- It will further be appreciated that the receiver may be configured to guide a docking device in the form of a coupling member, such as those described previously, towards the filter for coupling to the filter. In such a manner, the receiver may be used to assist retrieval of the filter. The coupling means may be achieved by numerous alternatives, for example male-female inter-engagement, or magnetic coupling, or hook and eyelet means.
-
FIG. 260 illustrates anotherretrieval catheter 790 according to the invention. Acoupling member 791, in this case, has atubular extension part 792 which extends distally ofhooks 793. In use, thetubular extension 792 may be extended through anembolic protection filter 794 to be retrieved, as illustrated inFIG. 261 . Thetubular extension 792 in this way defines theguidewire lumen 795 through thefilter 794 through which aguidewire 796 may be passed. - The
retrieval catheter 790 is particularly suitable for retrieving filters, such as thefilter 794 which do not have an inner tubular member to define a guidewire lumen through thefilter 794. Filters which do not have an inner tubular member are liable to becoming fixed against theguidewire 796 when the filter is collapsed down. When this occurs it is no longer possible to retrieve the filter while the guidewire remains in situ in the vasculature. - By defining the
guidewire lumen 795 using thetubular extension 792 of theretrieval catheter 790, this serves to isolate the collapsingfilter 794 from theguidewire 796, and thus prevents thefilter 794 from becoming fixed to theguidewire 796. - The
tubular extension 792 may be advanced to the distal end of thefilter 794 before retrieving thefilter 794 into acatheter body 798, as illustrated inFIG. 261 . - Alternatively the
tubular extension 792 may be advanced until thetubular extension 792 is distally of the distal end of thefilter 794 before retrieving thefilter 794 into thecatheter body 798. - The invention is not limited to the embodiments hereinbefore described, with reference to the accompanying drawings, which may be varied in construction and detail.
Claims (15)
1. An embolic protection filter for deployment in a vasculature, the filter having an inlet end and an outlet end, the inlet end having one or more inlet openings sized to allow blood and embolic material to enter the filter, and the outlet end of the filter having a plurality of outlet openings sized to allow through passage of blood but to retain undesired embolic material within the filter;
the filter being movable between a collapsed configuration for movement through a vasculature, and an outwardly extended configuration for deployment in a vasculature in apposition with a vasculature wall;
in the outwardly extended configuration the filter exerting an outward radial force on a vasculature wall sufficient to retain the filter in position against substantial longitudinal movement.
2. A filter as claimed in claim 1 wherein the filter comprises a filter body and a filter support frame to support the filter body in the outwardly extended configuration in apposition with a vasculature wall, the filter support frame providing the outward radial force.
3. A filter as claimed in claim 1 wherein the filter comprises a low-friction outer layer.
4. A filter as claimed in claim 3 wherein the outer layer is of a hydrophilic material.
5. A filter as claimed in claim 1 wherein the filter comprises an inflatable member to enhance the outward radial force.
6. A filter as claimed in claim 1 wherein the filter defines a guidewire lumen for passing the filter over a guidewire.
7. A filter as claimed in claim 1 comprising an anchor for fixing the filter to the vasculature in the deployed configuration.
8. A filter as claimed in claim 7 wherein the filter comprises a filter body and a filter support frame to support the filter body in the deployed configuration.
9. A filter as claimed in claim 8 wherein the support frame comprises the anchor.
10. A filter as claimed in claim 8 wherein the filter body comprises the anchor.
11. A filter as claimed in claim 7 wherein the anchor comprises a plurality of anchor elements.
12. A filter as claimed in claim 11 wherein the anchor elements are spaced-apart circumferentially around the filter when the filter is in the deployed configuration.
13. A filter as claimed in claim 2 wherein the support frame comprises at least one support hoop.
14. A filter as claimed in claim 2 wherein the support frame has a longitudinal aspect.
15. A filter as claimed in claim 2 wherein the filter is self supported in a vasculature in the absence of a guidewire.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/512,702 US20070162068A1 (en) | 1997-11-07 | 2006-08-30 | Embolic protection system |
Applications Claiming Priority (24)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IE970789 | 1997-11-07 | ||
IE970789 | 1997-11-07 | ||
IE980267 | 1998-04-08 | ||
IE980267 | 1998-04-08 | ||
US09/188,472 US6336934B1 (en) | 1997-11-07 | 1998-11-09 | Embolic protection device |
IE0000045 | 2000-04-20 | ||
IEPCT/IE00/00045 | 2000-04-20 | ||
IE20010263 | 2001-03-16 | ||
IE20010259 | 2001-03-16 | ||
IE20010261 | 2001-03-16 | ||
IE2001/0256 | 2001-03-16 | ||
IE20010255 | 2001-03-16 | ||
IE2001/0263 | 2001-03-16 | ||
IE20010260 | 2001-03-16 | ||
IE2001/0255 | 2001-03-16 | ||
IE20010258 | 2001-03-16 | ||
IE20010256 | 2001-03-16 | ||
IE2001/0259 | 2001-03-16 | ||
US83854501A | 2001-04-20 | 2001-04-20 | |
US09/921,596 US6432122B1 (en) | 1997-11-07 | 2001-08-06 | Embolic protection device |
US10/058,828 US7901426B2 (en) | 1997-11-07 | 2002-01-30 | Embolic protection device |
US36134002P | 2002-03-05 | 2002-03-05 | |
US10/378,675 US20040049226A1 (en) | 1997-11-07 | 2003-03-05 | Embolic protection system |
US11/512,702 US20070162068A1 (en) | 1997-11-07 | 2006-08-30 | Embolic protection system |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/058,828 Continuation-In-Part US7901426B2 (en) | 1997-11-07 | 2002-01-30 | Embolic protection device |
US10/378,675 Continuation US20040049226A1 (en) | 1997-11-07 | 2003-03-05 | Embolic protection system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070162068A1 true US20070162068A1 (en) | 2007-07-12 |
Family
ID=38814537
Family Applications (20)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/838,544 Expired - Lifetime US6887256B2 (en) | 1997-11-07 | 2001-04-20 | Embolic protection system |
US09/838,545 Abandoned US20020049467A1 (en) | 1997-11-07 | 2002-01-08 | Embolic protection system |
US10/379,435 Abandoned US20030187474A1 (en) | 1997-11-07 | 2003-03-05 | Embolic protection system |
US10/378,675 Abandoned US20040049226A1 (en) | 1997-11-07 | 2003-03-05 | Embolic protection system |
US10/396,716 Abandoned US20040127934A1 (en) | 1997-11-07 | 2003-03-26 | Embolic protection system |
US10/917,538 Abandoned US20050234502A1 (en) | 1997-11-07 | 2004-08-13 | Embolic protection system |
US10/939,995 Abandoned US20050228437A1 (en) | 1997-11-07 | 2004-09-14 | Embolic protection system |
US10/980,865 Expired - Fee Related US7972352B2 (en) | 1997-11-07 | 2004-11-04 | Embolic protection system |
US11/115,418 Abandoned US20060074446A1 (en) | 1997-11-07 | 2005-04-27 | Embolic protection system |
US11/141,709 Expired - Fee Related US8123776B2 (en) | 1997-11-07 | 2005-06-01 | Embolic protection system |
US11/508,805 Abandoned US20070173883A1 (en) | 1997-11-07 | 2006-08-23 | Embolic protection system |
US11/512,702 Abandoned US20070162068A1 (en) | 1997-11-07 | 2006-08-30 | Embolic protection system |
US11/620,509 Expired - Fee Related US8052716B2 (en) | 1997-11-07 | 2007-01-05 | Embolic protection system |
US11/669,447 Expired - Fee Related US7780697B2 (en) | 1997-11-07 | 2007-01-31 | Embolic protection system |
US11/669,460 Expired - Fee Related US7846176B2 (en) | 1997-11-07 | 2007-01-31 | Embolic protection system |
US11/691,130 Abandoned US20070282369A1 (en) | 1997-11-07 | 2007-03-26 | Embolic protection device |
US11/739,713 Expired - Fee Related US7842066B2 (en) | 1997-11-07 | 2007-04-25 | Embolic protection system |
US11/841,302 Expired - Lifetime US8241319B2 (en) | 1997-11-07 | 2007-08-20 | Embolic protection system |
US12/941,473 Abandoned US20110054516A1 (en) | 1997-11-07 | 2010-11-08 | Embolic protection method |
US13/152,516 Abandoned US20110307002A1 (en) | 1997-11-07 | 2011-06-03 | Embolic protection system |
Family Applications Before (11)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/838,544 Expired - Lifetime US6887256B2 (en) | 1997-11-07 | 2001-04-20 | Embolic protection system |
US09/838,545 Abandoned US20020049467A1 (en) | 1997-11-07 | 2002-01-08 | Embolic protection system |
US10/379,435 Abandoned US20030187474A1 (en) | 1997-11-07 | 2003-03-05 | Embolic protection system |
US10/378,675 Abandoned US20040049226A1 (en) | 1997-11-07 | 2003-03-05 | Embolic protection system |
US10/396,716 Abandoned US20040127934A1 (en) | 1997-11-07 | 2003-03-26 | Embolic protection system |
US10/917,538 Abandoned US20050234502A1 (en) | 1997-11-07 | 2004-08-13 | Embolic protection system |
US10/939,995 Abandoned US20050228437A1 (en) | 1997-11-07 | 2004-09-14 | Embolic protection system |
US10/980,865 Expired - Fee Related US7972352B2 (en) | 1997-11-07 | 2004-11-04 | Embolic protection system |
US11/115,418 Abandoned US20060074446A1 (en) | 1997-11-07 | 2005-04-27 | Embolic protection system |
US11/141,709 Expired - Fee Related US8123776B2 (en) | 1997-11-07 | 2005-06-01 | Embolic protection system |
US11/508,805 Abandoned US20070173883A1 (en) | 1997-11-07 | 2006-08-23 | Embolic protection system |
Family Applications After (8)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/620,509 Expired - Fee Related US8052716B2 (en) | 1997-11-07 | 2007-01-05 | Embolic protection system |
US11/669,447 Expired - Fee Related US7780697B2 (en) | 1997-11-07 | 2007-01-31 | Embolic protection system |
US11/669,460 Expired - Fee Related US7846176B2 (en) | 1997-11-07 | 2007-01-31 | Embolic protection system |
US11/691,130 Abandoned US20070282369A1 (en) | 1997-11-07 | 2007-03-26 | Embolic protection device |
US11/739,713 Expired - Fee Related US7842066B2 (en) | 1997-11-07 | 2007-04-25 | Embolic protection system |
US11/841,302 Expired - Lifetime US8241319B2 (en) | 1997-11-07 | 2007-08-20 | Embolic protection system |
US12/941,473 Abandoned US20110054516A1 (en) | 1997-11-07 | 2010-11-08 | Embolic protection method |
US13/152,516 Abandoned US20110307002A1 (en) | 1997-11-07 | 2011-06-03 | Embolic protection system |
Country Status (12)
Country | Link |
---|---|
US (20) | US6887256B2 (en) |
EP (3) | EP1274371B1 (en) |
JP (2) | JP2003530955A (en) |
AT (2) | ATE476154T1 (en) |
AU (2) | AU5059501A (en) |
BR (1) | BR0110186A (en) |
CA (2) | CA2406521A1 (en) |
DE (5) | DE10196091T1 (en) |
GB (2) | GB2369575A (en) |
IE (1) | IE20010390A1 (en) |
MX (1) | MXPA02010352A (en) |
WO (2) | WO2001080776A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090254116A1 (en) * | 2008-04-03 | 2009-10-08 | Gardia Medical Ltd. | Retrieval catheter and methods of retrieving deployed medical devices |
US20100191272A1 (en) * | 2009-01-23 | 2010-07-29 | Salviac Limited | Distal access embolic protection system and methods of using the same |
Families Citing this family (420)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8323305B2 (en) * | 1997-02-11 | 2012-12-04 | Cardiva Medical, Inc. | Expansile device for use in blood vessels and tracts in the body and method |
WO1998039053A1 (en) | 1997-03-06 | 1998-09-11 | Scimed Life Systems, Inc. | Distal protection device and method |
US7491216B2 (en) | 1997-11-07 | 2009-02-17 | Salviac Limited | Filter element with retractable guidewire tip |
EP1028670B1 (en) | 1997-11-07 | 2008-01-02 | Salviac Limited | An embolic protection device |
US7314477B1 (en) | 1998-09-25 | 2008-01-01 | C.R. Bard Inc. | Removable embolus blood clot filter and filter delivery unit |
US6896690B1 (en) | 2000-01-27 | 2005-05-24 | Viacor, Inc. | Cardiac valve procedure methods and devices |
US8702727B1 (en) | 1999-02-01 | 2014-04-22 | Hologic, Inc. | Delivery catheter with implant ejection mechanism |
US6309384B1 (en) | 1999-02-01 | 2001-10-30 | Adiana, Inc. | Method and apparatus for tubal occlusion |
US6918921B2 (en) | 1999-05-07 | 2005-07-19 | Salviac Limited | Support frame for an embolic protection device |
US6964672B2 (en) | 1999-05-07 | 2005-11-15 | Salviac Limited | Support frame for an embolic protection device |
US20030150821A1 (en) * | 1999-07-16 | 2003-08-14 | Bates Mark C. | Emboli filtration system and methods of use |
WO2001008742A1 (en) | 1999-07-30 | 2001-02-08 | Incept Llc | Vascular filter having articulation region and methods of use in the ascending aorta |
EP1402848B2 (en) | 1999-08-27 | 2018-10-24 | Covidien LP | Slideable vascular filter |
US6325815B1 (en) | 1999-09-21 | 2001-12-04 | Microvena Corporation | Temporary vascular filter |
US6371971B1 (en) | 1999-11-15 | 2002-04-16 | Scimed Life Systems, Inc. | Guidewire filter and methods of use |
US6575997B1 (en) | 1999-12-23 | 2003-06-10 | Endovascular Technologies, Inc. | Embolic basket |
US6402771B1 (en) | 1999-12-23 | 2002-06-11 | Guidant Endovascular Solutions | Snare |
US6660021B1 (en) | 1999-12-23 | 2003-12-09 | Advanced Cardiovascular Systems, Inc. | Intravascular device and system |
US6540722B1 (en) * | 1999-12-30 | 2003-04-01 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
US6695813B1 (en) * | 1999-12-30 | 2004-02-24 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
US7918820B2 (en) | 1999-12-30 | 2011-04-05 | Advanced Cardiovascular Systems, Inc. | Device for, and method of, blocking emboli in vessels such as blood arteries |
US7749245B2 (en) | 2000-01-27 | 2010-07-06 | Medtronic, Inc. | Cardiac valve procedure methods and devices |
US20040167567A1 (en) * | 2001-03-23 | 2004-08-26 | Cano Gerald G. | Method and apparatus for capturing objects beyond an operative site in medical procedures |
GB2369575A (en) | 2000-04-20 | 2002-06-05 | Salviac Ltd | An embolic protection system |
US6939362B2 (en) * | 2001-11-27 | 2005-09-06 | Advanced Cardiovascular Systems, Inc. | Offset proximal cage for embolic filtering devices |
DE10191982T1 (en) * | 2000-06-23 | 2003-11-06 | Salviac Ltd | Filter element for embolic protection device |
US6565591B2 (en) * | 2000-06-23 | 2003-05-20 | Salviac Limited | Medical device |
US6964670B1 (en) * | 2000-07-13 | 2005-11-15 | Advanced Cardiovascular Systems, Inc. | Embolic protection guide wire |
JP2004506469A (en) | 2000-08-18 | 2004-03-04 | アトリテック, インコーポレイテッド | Expandable implantable device for filtering blood flow from the atrial appendage |
US6537294B1 (en) * | 2000-10-17 | 2003-03-25 | Advanced Cardiovascular Systems, Inc. | Delivery systems for embolic filter devices |
US6893451B2 (en) * | 2000-11-09 | 2005-05-17 | Advanced Cardiovascular Systems, Inc. | Apparatus for capturing objects beyond an operative site utilizing a capture device delivered on a medical guide wire |
US6506203B1 (en) | 2000-12-19 | 2003-01-14 | Advanced Cardiovascular Systems, Inc. | Low profile sheathless embolic protection system |
US6979343B2 (en) | 2001-02-14 | 2005-12-27 | Ev3 Inc. | Rolled tip recovery catheter |
US6974468B2 (en) * | 2001-02-28 | 2005-12-13 | Scimed Life Systems, Inc. | Filter retrieval catheter |
US7226464B2 (en) * | 2001-03-01 | 2007-06-05 | Scimed Life Systems, Inc. | Intravascular filter retrieval device having an actuatable dilator tip |
US6706055B2 (en) | 2001-04-03 | 2004-03-16 | Medtronic Ave Inc. | Guidewire apparatus for temporary distal embolic protection |
US6911036B2 (en) | 2001-04-03 | 2005-06-28 | Medtronic Vascular, Inc. | Guidewire apparatus for temporary distal embolic protection |
EP1379307B1 (en) | 2001-04-17 | 2006-03-22 | Salviac Limited | A catheter |
US6645223B2 (en) * | 2001-04-30 | 2003-11-11 | Advanced Cardiovascular Systems, Inc. | Deployment and recovery control systems for embolic protection devices |
US6929652B1 (en) * | 2001-06-01 | 2005-08-16 | Advanced Cardiovascular Systems, Inc. | Delivery and recovery systems having steerability and rapid exchange operating modes for embolic protection systems |
US7789860B2 (en) | 2001-06-27 | 2010-09-07 | Salviac Limited | Catheter for delivery and/or retrieval of a medical device |
US7780693B2 (en) | 2001-06-27 | 2010-08-24 | Salviac Limited | Catheter |
US6599307B1 (en) | 2001-06-29 | 2003-07-29 | Advanced Cardiovascular Systems, Inc. | Filter device for embolic protection systems |
US7338510B2 (en) | 2001-06-29 | 2008-03-04 | Advanced Cardiovascular Systems, Inc. | Variable thickness embolic filtering devices and method of manufacturing the same |
US6962598B2 (en) * | 2001-07-02 | 2005-11-08 | Rubicon Medical, Inc. | Methods, systems, and devices for providing embolic protection |
US6951570B2 (en) * | 2001-07-02 | 2005-10-04 | Rubicon Medical, Inc. | Methods, systems, and devices for deploying a filter from a filter device |
US20030032941A1 (en) * | 2001-08-13 | 2003-02-13 | Boyle William J. | Convertible delivery systems for medical devices |
US6638294B1 (en) | 2001-08-30 | 2003-10-28 | Advanced Cardiovascular Systems, Inc. | Self furling umbrella frame for carotid filter |
US6592606B2 (en) | 2001-08-31 | 2003-07-15 | Advanced Cardiovascular Systems, Inc. | Hinged short cage for an embolic protection device |
US20030050648A1 (en) * | 2001-09-11 | 2003-03-13 | Spiration, Inc. | Removable lung reduction devices, systems, and methods |
US20030060843A1 (en) * | 2001-09-27 | 2003-03-27 | Don Boucher | Vascular filter system with encapsulated filter |
US8262689B2 (en) | 2001-09-28 | 2012-09-11 | Advanced Cardiovascular Systems, Inc. | Embolic filtering devices |
US20030069597A1 (en) * | 2001-10-10 | 2003-04-10 | Scimed Life Systems, Inc. | Loading tool |
US20030078614A1 (en) * | 2001-10-18 | 2003-04-24 | Amr Salahieh | Vascular embolic filter devices and methods of use therefor |
US6592594B2 (en) | 2001-10-25 | 2003-07-15 | Spiration, Inc. | Bronchial obstruction device deployment system and method |
US20030083692A1 (en) * | 2001-10-29 | 2003-05-01 | Scimed Life Systems, Inc. | Distal protection device and method of use thereof |
US7153320B2 (en) * | 2001-12-13 | 2006-12-26 | Scimed Life Systems, Inc. | Hydraulic controlled retractable tip filter retrieval catheter |
US7241304B2 (en) | 2001-12-21 | 2007-07-10 | Advanced Cardiovascular Systems, Inc. | Flexible and conformable embolic filtering devices |
WO2003055413A2 (en) | 2001-12-21 | 2003-07-10 | Salviac Limited | A support frame for an embolic protection device |
US9204956B2 (en) | 2002-02-20 | 2015-12-08 | C. R. Bard, Inc. | IVC filter with translating hooks |
US20030154988A1 (en) * | 2002-02-21 | 2003-08-21 | Spiration, Inc. | Intra-bronchial device that provides a medicant intra-bronchially to the patient |
US6929637B2 (en) | 2002-02-21 | 2005-08-16 | Spiration, Inc. | Device and method for intra-bronchial provision of a therapeutic agent |
EP1482861B1 (en) | 2002-03-05 | 2007-08-08 | Salviac Limited | An embolic protection system |
US7192434B2 (en) | 2002-03-08 | 2007-03-20 | Ev3 Inc. | Vascular protection devices and methods of use |
US6773448B2 (en) | 2002-03-08 | 2004-08-10 | Ev3 Inc. | Distal protection devices having controllable wire motion |
US20030216769A1 (en) * | 2002-05-17 | 2003-11-20 | Dillard David H. | Removable anchored lung volume reduction devices and methods |
US20030181922A1 (en) | 2002-03-20 | 2003-09-25 | Spiration, Inc. | Removable anchored lung volume reduction devices and methods |
US20030187495A1 (en) | 2002-04-01 | 2003-10-02 | Cully Edward H. | Endoluminal devices, embolic filters, methods of manufacture and use |
US20030212412A1 (en) * | 2002-05-09 | 2003-11-13 | Spiration, Inc. | Intra-bronchial obstructing device that permits mucus transport |
DE60324787D1 (en) | 2002-05-10 | 2009-01-02 | Salviac Ltd | SYSTEM FOR FILTERING EMBOLI |
AU2003231886A1 (en) * | 2002-05-13 | 2003-11-11 | Salviac Limited | Retrieval catheter for an embolic filter |
US7001406B2 (en) * | 2002-05-23 | 2006-02-21 | Scimed Life Systems Inc. | Cartridge embolic protection filter and methods of use |
US6887258B2 (en) * | 2002-06-26 | 2005-05-03 | Advanced Cardiovascular Systems, Inc. | Embolic filtering devices for bifurcated vessels |
US7232452B2 (en) | 2002-07-12 | 2007-06-19 | Ev3 Inc. | Device to create proximal stasis |
AU2003263454A1 (en) * | 2002-09-19 | 2004-04-08 | Petrus Besselink | Vascular filter with improved strength and flexibility |
US7137184B2 (en) * | 2002-09-20 | 2006-11-21 | Edwards Lifesciences Corporation | Continuous heart valve support frame and method of manufacture |
US20040064099A1 (en) * | 2002-09-30 | 2004-04-01 | Chiu Jessica G. | Intraluminal needle injection substance delivery system with filtering capability |
US7252675B2 (en) * | 2002-09-30 | 2007-08-07 | Advanced Cardiovascular, Inc. | Embolic filtering devices |
US7331973B2 (en) | 2002-09-30 | 2008-02-19 | Avdanced Cardiovascular Systems, Inc. | Guide wire with embolic filtering attachment |
US20040093012A1 (en) * | 2002-10-17 | 2004-05-13 | Cully Edward H. | Embolic filter frame having looped support strut elements |
JP2006514846A (en) * | 2002-10-29 | 2006-05-18 | サード ピーコック、ジェームス、シー. | Emboli filter device and related system and method |
US20040088000A1 (en) | 2002-10-31 | 2004-05-06 | Muller Paul F. | Single-wire expandable cages for embolic filtering devices |
EP1428545B1 (en) * | 2002-12-11 | 2006-04-12 | Abbott Laboratories Vascular Enterprises Limited | Catheter |
US7740644B2 (en) | 2003-02-24 | 2010-06-22 | Boston Scientific Scimed, Inc. | Embolic protection filtering device that can be adapted to be advanced over a guidewire |
US8591540B2 (en) | 2003-02-27 | 2013-11-26 | Abbott Cardiovascular Systems Inc. | Embolic filtering devices |
US20040172055A1 (en) * | 2003-02-27 | 2004-09-02 | Huter Scott J. | Embolic filtering devices |
US20040210248A1 (en) * | 2003-03-12 | 2004-10-21 | Spiration, Inc. | Apparatus, method and assembly for delivery of intra-bronchial devices |
EP1608295B1 (en) | 2003-03-28 | 2017-05-03 | Covidien LP | Double ended intravascular medical device |
US7100616B2 (en) | 2003-04-08 | 2006-09-05 | Spiration, Inc. | Bronchoscopic lung volume reduction method |
EP2191790A3 (en) * | 2003-05-19 | 2012-10-17 | SeptRx, Inc. | Tissue distention device and related methods for therapeutic intervention |
US8337519B2 (en) * | 2003-07-10 | 2012-12-25 | Boston Scientific Scimed, Inc. | Embolic protection filtering device |
US7533671B2 (en) | 2003-08-08 | 2009-05-19 | Spiration, Inc. | Bronchoscopic repair of air leaks in a lung |
US20050113804A1 (en) * | 2003-10-03 | 2005-05-26 | Von Lehe Cathleen | Variable diameter delivery catheter |
US7892251B1 (en) | 2003-11-12 | 2011-02-22 | Advanced Cardiovascular Systems, Inc. | Component for delivering and locking a medical device to a guide wire |
US20050149110A1 (en) * | 2003-12-16 | 2005-07-07 | Wholey Mark H. | Vascular catheter with an expandable section and a distal tip for delivering a thromboembolic protection device and method of use |
US7329279B2 (en) | 2003-12-23 | 2008-02-12 | Sadra Medical, Inc. | Methods and apparatus for endovascularly replacing a patient's heart valve |
US7381219B2 (en) | 2003-12-23 | 2008-06-03 | Sadra Medical, Inc. | Low profile heart valve and delivery system |
US8182528B2 (en) | 2003-12-23 | 2012-05-22 | Sadra Medical, Inc. | Locking heart valve anchor |
US7780725B2 (en) | 2004-06-16 | 2010-08-24 | Sadra Medical, Inc. | Everting heart valve |
CN101947146B (en) | 2003-12-23 | 2014-08-06 | 萨德拉医学公司 | Relocatable heart valve |
US20050137694A1 (en) | 2003-12-23 | 2005-06-23 | Haug Ulrich R. | Methods and apparatus for endovascularly replacing a patient's heart valve |
US8840663B2 (en) | 2003-12-23 | 2014-09-23 | Sadra Medical, Inc. | Repositionable heart valve method |
US9526609B2 (en) | 2003-12-23 | 2016-12-27 | Boston Scientific Scimed, Inc. | Methods and apparatus for endovascularly replacing a patient's heart valve |
US8828078B2 (en) | 2003-12-23 | 2014-09-09 | Sadra Medical, Inc. | Methods and apparatus for endovascular heart valve replacement comprising tissue grasping elements |
US9005273B2 (en) | 2003-12-23 | 2015-04-14 | Sadra Medical, Inc. | Assessing the location and performance of replacement heart valves |
US20050137686A1 (en) * | 2003-12-23 | 2005-06-23 | Sadra Medical, A Delaware Corporation | Externally expandable heart valve anchor and method |
US7959666B2 (en) | 2003-12-23 | 2011-06-14 | Sadra Medical, Inc. | Methods and apparatus for endovascularly replacing a heart valve |
US20120041550A1 (en) | 2003-12-23 | 2012-02-16 | Sadra Medical, Inc. | Methods and Apparatus for Endovascular Heart Valve Replacement Comprising Tissue Grasping Elements |
US7445631B2 (en) | 2003-12-23 | 2008-11-04 | Sadra Medical, Inc. | Methods and apparatus for endovascularly replacing a patient's heart valve |
US8287584B2 (en) | 2005-11-14 | 2012-10-16 | Sadra Medical, Inc. | Medical implant deployment tool |
US8343213B2 (en) | 2003-12-23 | 2013-01-01 | Sadra Medical, Inc. | Leaflet engagement elements and methods for use thereof |
US8603160B2 (en) | 2003-12-23 | 2013-12-10 | Sadra Medical, Inc. | Method of using a retrievable heart valve anchor with a sheath |
US20050137687A1 (en) | 2003-12-23 | 2005-06-23 | Sadra Medical | Heart valve anchor and method |
US7824443B2 (en) * | 2003-12-23 | 2010-11-02 | Sadra Medical, Inc. | Medical implant delivery and deployment tool |
US8579962B2 (en) | 2003-12-23 | 2013-11-12 | Sadra Medical, Inc. | Methods and apparatus for performing valvuloplasty |
US7748389B2 (en) * | 2003-12-23 | 2010-07-06 | Sadra Medical, Inc. | Leaflet engagement elements and methods for use thereof |
US11278398B2 (en) | 2003-12-23 | 2022-03-22 | Boston Scientific Scimed, Inc. | Methods and apparatus for endovascular heart valve replacement comprising tissue grasping elements |
US7824442B2 (en) * | 2003-12-23 | 2010-11-02 | Sadra Medical, Inc. | Methods and apparatus for endovascularly replacing a heart valve |
US20050177185A1 (en) * | 2004-02-05 | 2005-08-11 | Scimed Life Systems, Inc. | Counterwound coil for embolic protection sheath |
US7678129B1 (en) | 2004-03-19 | 2010-03-16 | Advanced Cardiovascular Systems, Inc. | Locking component for an embolic filter assembly |
US20080154303A1 (en) | 2006-12-21 | 2008-06-26 | Cardiva Medical, Inc. | Hemostasis-enhancing device and method for its use |
US20050240215A1 (en) * | 2004-04-21 | 2005-10-27 | Scimed Life Systems, Inc. | Magnetic embolic protection device and method |
US7209044B2 (en) * | 2004-05-04 | 2007-04-24 | Reustle M Charles | System and method for elimination of bedwetting behavior |
US7799050B2 (en) * | 2004-05-05 | 2010-09-21 | Boston Scientific Scimed, Inc. | Devices and methods for magnetically manipulating intravascular devices |
US7704267B2 (en) | 2004-08-04 | 2010-04-27 | C. R. Bard, Inc. | Non-entangling vena cava filter |
US7794472B2 (en) * | 2004-08-11 | 2010-09-14 | Boston Scientific Scimed, Inc. | Single wire intravascular filter |
US8545418B2 (en) | 2004-08-25 | 2013-10-01 | Richard R. Heuser | Systems and methods for ablation of occlusions within blood vessels |
US8403955B2 (en) * | 2004-09-02 | 2013-03-26 | Lifescreen Sciences Llc | Inflatable intravascular filter |
WO2006042114A1 (en) | 2004-10-06 | 2006-04-20 | Cook, Inc. | Emboli capturing device having a coil and method for capturing emboli |
ITMI20042132A1 (en) * | 2004-11-05 | 2005-02-05 | Ethicon Endo Surgery Inc | DEVICE AND METHOD FOR OBESITY THERAPY |
DE102005003632A1 (en) | 2005-01-20 | 2006-08-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Catheter for the transvascular implantation of heart valve prostheses |
WO2006089178A2 (en) | 2005-02-18 | 2006-08-24 | Ev3 Inc. | Rapid exchange catheters and embolic protection devices |
CN100355399C (en) * | 2005-03-10 | 2007-12-19 | 成正辉 | Far end protecting device and its preparing method |
US8945169B2 (en) | 2005-03-15 | 2015-02-03 | Cook Medical Technologies Llc | Embolic protection device |
US8221446B2 (en) | 2005-03-15 | 2012-07-17 | Cook Medical Technologies | Embolic protection device |
US20060229657A1 (en) * | 2005-03-30 | 2006-10-12 | Wasicek Lawrence D | Single operator exchange embolic protection filter |
US9259305B2 (en) | 2005-03-31 | 2016-02-16 | Abbott Cardiovascular Systems Inc. | Guide wire locking mechanism for rapid exchange and other catheter systems |
US20060229658A1 (en) * | 2005-04-07 | 2006-10-12 | Stivland Timothy M | Embolic protection filter with reduced landing zone |
US7717936B2 (en) * | 2005-04-18 | 2010-05-18 | Salviac Limited | Device for loading an embolic protection filter into a catheter |
US7962208B2 (en) | 2005-04-25 | 2011-06-14 | Cardiac Pacemakers, Inc. | Method and apparatus for pacing during revascularization |
JP5102201B2 (en) * | 2005-05-12 | 2012-12-19 | シー・アール・バード・インコーポレーテッド | Removable embolic clot filter |
US20060287668A1 (en) * | 2005-06-16 | 2006-12-21 | Fawzi Natalie V | Apparatus and methods for intravascular embolic protection |
US7850708B2 (en) | 2005-06-20 | 2010-12-14 | Cook Incorporated | Embolic protection device having a reticulated body with staggered struts |
US8109962B2 (en) | 2005-06-20 | 2012-02-07 | Cook Medical Technologies Llc | Retrievable device having a reticulation portion with staggered struts |
US7771452B2 (en) | 2005-07-12 | 2010-08-10 | Cook Incorporated | Embolic protection device with a filter bag that disengages from a basket |
US7766934B2 (en) | 2005-07-12 | 2010-08-03 | Cook Incorporated | Embolic protection device with an integral basket and bag |
US20080172066A9 (en) * | 2005-07-29 | 2008-07-17 | Galdonik Jason A | Embolectomy procedures with a device comprising a polymer and devices with polymer matrices and supports |
US8187298B2 (en) | 2005-08-04 | 2012-05-29 | Cook Medical Technologies Llc | Embolic protection device having inflatable frame |
JP4851522B2 (en) | 2005-08-09 | 2012-01-11 | シー・アール・バード・インコーポレーテッド | Insertion type thrombus filter and delivery system |
EP1916962A1 (en) * | 2005-08-18 | 2008-05-07 | Salviac Limited | A delivery catheter for embolic protection filter |
US7712606B2 (en) | 2005-09-13 | 2010-05-11 | Sadra Medical, Inc. | Two-part package for medical implant |
US8377092B2 (en) * | 2005-09-16 | 2013-02-19 | Cook Medical Technologies Llc | Embolic protection device |
PL1926453T3 (en) * | 2005-09-19 | 2011-04-29 | Minvasys | Catheter for Placement of a Stent |
US8632562B2 (en) | 2005-10-03 | 2014-01-21 | Cook Medical Technologies Llc | Embolic protection device |
US8182508B2 (en) | 2005-10-04 | 2012-05-22 | Cook Medical Technologies Llc | Embolic protection device |
US20070088382A1 (en) * | 2005-10-13 | 2007-04-19 | Bei Nianjiong J | Embolic protection recovery catheter assembly |
US8252017B2 (en) | 2005-10-18 | 2012-08-28 | Cook Medical Technologies Llc | Invertible filter for embolic protection |
US8216269B2 (en) * | 2005-11-02 | 2012-07-10 | Cook Medical Technologies Llc | Embolic protection device having reduced profile |
US8152831B2 (en) | 2005-11-17 | 2012-04-10 | Cook Medical Technologies Llc | Foam embolic protection device |
CA2940038C (en) | 2005-11-18 | 2018-08-28 | C.R. Bard, Inc. | Vena cava filter with filament |
US20070213813A1 (en) | 2005-12-22 | 2007-09-13 | Symetis Sa | Stent-valves for valve replacement and associated methods and systems for surgery |
US20070179519A1 (en) * | 2006-01-27 | 2007-08-02 | Wang Huisun | Stent delivery system to improve placement accuracy for self-expanding stent |
CN101415379B (en) | 2006-02-14 | 2012-06-20 | 萨德拉医学公司 | Systems for delivering a medical implant |
US20070219577A1 (en) * | 2006-03-20 | 2007-09-20 | Boston Scientific Scimed, Inc. | Sprayed in delivery sheath tubes |
US7691151B2 (en) | 2006-03-31 | 2010-04-06 | Spiration, Inc. | Articulable Anchor |
US20070239198A1 (en) * | 2006-04-03 | 2007-10-11 | Boston Scientific Scimed, Inc. | Filter and wire with distal isolation |
WO2007133366A2 (en) | 2006-05-02 | 2007-11-22 | C. R. Bard, Inc. | Vena cava filter formed from a sheet |
US8409238B2 (en) * | 2006-05-18 | 2013-04-02 | Boston Scientific Scimed, Inc. | Mini cams on support loop for vessel stabilization |
CA2655158A1 (en) | 2006-06-05 | 2007-12-13 | C.R. Bard Inc. | Embolus blood clot filter utilizable with a single delivery system or a single retrieval system in one of a femoral or jugular access |
JP2008012196A (en) * | 2006-07-07 | 2008-01-24 | Hi-Lex Corporation | Board and package set for medical long scroll |
US8167902B2 (en) * | 2006-08-11 | 2012-05-01 | Tyco Healthcare Group Lp | Rapid exchange catheters for embolic protection devices |
US20100179583A1 (en) * | 2006-09-11 | 2010-07-15 | Carpenter Judith T | Methods of deploying and retrieving an embolic diversion device |
US20100179647A1 (en) * | 2006-09-11 | 2010-07-15 | Carpenter Judith T | Methods of reducing embolism to cerebral circulation as a consequence of an index cardiac procedure |
US8460335B2 (en) * | 2006-09-11 | 2013-06-11 | Embrella Cardiovascular, Inc. | Method of deflecting emboli from the cerebral circulation |
US9480548B2 (en) * | 2006-09-11 | 2016-11-01 | Edwards Lifesciences Ag | Embolic protection device and method of use |
US9339367B2 (en) * | 2006-09-11 | 2016-05-17 | Edwards Lifesciences Ag | Embolic deflection device |
US20080071307A1 (en) | 2006-09-19 | 2008-03-20 | Cook Incorporated | Apparatus and methods for in situ embolic protection |
US9326877B2 (en) * | 2006-09-29 | 2016-05-03 | Apollo Endosurgery, Inc. | Apparatus and method for intragastric balloon with in situ adjustment means |
EP2068728B1 (en) | 2006-10-06 | 2013-11-20 | Lithotech Medical Ltd. | Retrieval snare for extracting foreign objects from body cavities and method for manufacturing thereof |
US9149609B2 (en) * | 2006-10-16 | 2015-10-06 | Embolitech, Llc | Catheter for removal of an organized embolic thrombus |
US20080161825A1 (en) * | 2006-11-20 | 2008-07-03 | Stout Medical Group, L.P. | Anatomical measurement tool |
US20090036840A1 (en) * | 2006-11-22 | 2009-02-05 | Cytyc Corporation | Atraumatic ball tip and side wall opening |
WO2008066881A1 (en) * | 2006-11-29 | 2008-06-05 | Amir Belson | Embolic protection device |
US9107736B2 (en) * | 2006-12-06 | 2015-08-18 | Abbott Cardiovascular Systems Inc. | Highly trackable balloon catheter system and method for collapsing an expanded medical device |
US20080140003A1 (en) * | 2006-12-06 | 2008-06-12 | Advanced Cardiovascular Systems, Inc. | Balloon catheter having a regrooming sheath and method for collapsing an expanded medical device |
US9901434B2 (en) | 2007-02-27 | 2018-02-27 | Cook Medical Technologies Llc | Embolic protection device including a Z-stent waist band |
US8100959B2 (en) * | 2007-03-09 | 2012-01-24 | Pulmonx Corporation | Loading device for a pulmonary implant |
US7896915B2 (en) | 2007-04-13 | 2011-03-01 | Jenavalve Technology, Inc. | Medical device for treating a heart valve insufficiency |
US8241318B2 (en) * | 2007-04-13 | 2012-08-14 | Abbott Laboratories | Embolic protection device with locking device |
US20080269641A1 (en) * | 2007-04-25 | 2008-10-30 | Medtronic Vascular, Inc. | Method of using a guidewire with stiffened distal section |
US8216209B2 (en) | 2007-05-31 | 2012-07-10 | Abbott Cardiovascular Systems Inc. | Method and apparatus for delivering an agent to a kidney |
US7867273B2 (en) | 2007-06-27 | 2011-01-11 | Abbott Laboratories | Endoprostheses for peripheral arteries and other body vessels |
US8328840B2 (en) * | 2007-07-09 | 2012-12-11 | Artventive Medical Group, Inc. | Methods and apparatus for rapid endovascular vessel occlusion and blood flow interruption |
US8613753B2 (en) | 2007-08-31 | 2013-12-24 | BiO2 Medical, Inc. | Multi-lumen central access vena cava filter apparatus and method of using same |
US8419748B2 (en) | 2007-09-14 | 2013-04-16 | Cook Medical Technologies Llc | Helical thrombus removal device |
US8252018B2 (en) | 2007-09-14 | 2012-08-28 | Cook Medical Technologies Llc | Helical embolic protection device |
US9138307B2 (en) | 2007-09-14 | 2015-09-22 | Cook Medical Technologies Llc | Expandable device for treatment of a stricture in a body vessel |
US8663309B2 (en) | 2007-09-26 | 2014-03-04 | Trivascular, Inc. | Asymmetric stent apparatus and method |
US8226701B2 (en) | 2007-09-26 | 2012-07-24 | Trivascular, Inc. | Stent and delivery system for deployment thereof |
US8066755B2 (en) | 2007-09-26 | 2011-11-29 | Trivascular, Inc. | System and method of pivoted stent deployment |
US9597172B2 (en) | 2007-09-28 | 2017-03-21 | W. L. Gore & Associates, Inc. | Retrieval catheter |
EP2194921B1 (en) | 2007-10-04 | 2018-08-29 | TriVascular, Inc. | Modular vascular graft for low profile percutaneous delivery |
JP5570993B2 (en) | 2007-10-12 | 2014-08-13 | スピレーション インコーポレイテッド | Valve loader methods, systems, and apparatus |
US8043301B2 (en) | 2007-10-12 | 2011-10-25 | Spiration, Inc. | Valve loader method, system, and apparatus |
WO2009052432A2 (en) | 2007-10-19 | 2009-04-23 | Coherex Medical, Inc. | Medical device for modification of left atrial appendange and related systems and methods |
EP2211972B1 (en) * | 2007-10-26 | 2015-12-23 | Embolitech, LLC | Intravascular guidewire filter system for pulmonary embolism protection and embolism removal or maceration |
US20090112126A1 (en) * | 2007-10-27 | 2009-04-30 | Salviac Limited | Stepped guidewire with shim |
US8328861B2 (en) | 2007-11-16 | 2012-12-11 | Trivascular, Inc. | Delivery system and method for bifurcated graft |
US8083789B2 (en) | 2007-11-16 | 2011-12-27 | Trivascular, Inc. | Securement assembly and method for expandable endovascular device |
US8114116B2 (en) * | 2008-01-18 | 2012-02-14 | Cook Medical Technologies Llc | Introduction catheter set for a self-expandable implant |
DE102008009525A1 (en) * | 2008-02-16 | 2009-08-27 | Peter Osypka Stiftung Stiftung des bürgerlichen Rechts | Device for implanting a closure device in the heart |
WO2011104269A1 (en) | 2008-02-26 | 2011-09-01 | Jenavalve Technology Inc. | Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient |
US9044318B2 (en) | 2008-02-26 | 2015-06-02 | Jenavalve Technology Gmbh | Stent for the positioning and anchoring of a valvular prosthesis |
US8246649B2 (en) * | 2008-03-19 | 2012-08-21 | Schneider M Bret | Electrostatic vascular filters |
EP2282684B1 (en) * | 2008-04-03 | 2016-06-15 | Cook Medical Technologies LLC | Occlusion device |
US8308792B2 (en) | 2008-05-30 | 2012-11-13 | Cordis Corporation | Device for loading self-expanding stents |
EP2520320B1 (en) | 2008-07-01 | 2016-11-02 | Endologix, Inc. | Catheter system |
US8052717B2 (en) * | 2008-07-14 | 2011-11-08 | Boston Scientific Scimed, Inc. | Embolic protection device |
US9402707B2 (en) | 2008-07-22 | 2016-08-02 | Neuravi Limited | Clot capture systems and associated methods |
US8777976B2 (en) * | 2008-07-22 | 2014-07-15 | Neuravi Limited | Clot capture systems and associated methods |
US8485969B2 (en) * | 2008-09-18 | 2013-07-16 | Jeffrey Grayzel | Medical guide element with diameter transition |
JP5607639B2 (en) | 2008-10-10 | 2014-10-15 | サドラ メディカル インコーポレイテッド | Medical devices and systems |
US8444669B2 (en) | 2008-12-15 | 2013-05-21 | Boston Scientific Scimed, Inc. | Embolic filter delivery system and method |
US20100152711A1 (en) * | 2008-12-15 | 2010-06-17 | Boston Scientific Scimed, Inc. | Offset coupling region |
US8388644B2 (en) | 2008-12-29 | 2013-03-05 | Cook Medical Technologies Llc | Embolic protection device and method of use |
WO2010081033A1 (en) | 2009-01-08 | 2010-07-15 | Coherex Medical, Inc. | Medical device for modification of left atrial appendage and related systems and methods |
EP2241284B1 (en) | 2009-04-15 | 2012-09-19 | National University of Ireland, Galway | Intravasculature devices and balloons for use therewith |
US9681967B2 (en) * | 2009-04-16 | 2017-06-20 | Cvdevices, Llc | Linked deflection devices, systems and methods for the prevention of stroke |
US10631969B2 (en) | 2009-06-17 | 2020-04-28 | Coherex Medical, Inc. | Medical device for modification of left atrial appendage and related systems and methods |
US9351716B2 (en) | 2009-06-17 | 2016-05-31 | Coherex Medical, Inc. | Medical device and delivery system for modification of left atrial appendage and methods thereof |
US10064628B2 (en) | 2009-06-17 | 2018-09-04 | Coherex Medical, Inc. | Medical device for modification of left atrial appendage and related systems and methods |
CN105640606B (en) * | 2009-06-17 | 2018-10-09 | 科赫里克斯医疗股份有限公司 | Medical treatment device for correcting left auricle of heart and relevant system and method |
US9649115B2 (en) | 2009-06-17 | 2017-05-16 | Coherex Medical, Inc. | Medical device for modification of left atrial appendage and related systems and methods |
ES2717424T3 (en) | 2009-07-29 | 2019-06-21 | Bard Inc C R | Tubular filter |
US8696698B2 (en) | 2009-12-02 | 2014-04-15 | Surefire Medical, Inc. | Microvalve protection device and method of use for protection against embolization agent reflux |
US9539081B2 (en) | 2009-12-02 | 2017-01-10 | Surefire Medical, Inc. | Method of operating a microvalve protection device |
US8231619B2 (en) | 2010-01-22 | 2012-07-31 | Cytyc Corporation | Sterilization device and method |
EP2558005B1 (en) | 2010-04-13 | 2022-03-30 | MIVI Neuroscience, Inc | Embolectomy devices for treatment of acute ischemic stroke condition |
US8550086B2 (en) | 2010-05-04 | 2013-10-08 | Hologic, Inc. | Radiopaque implant |
CN103002833B (en) | 2010-05-25 | 2016-05-11 | 耶拿阀门科技公司 | Artificial heart valve and comprise artificial heart valve and support through conduit carry interior prosthese |
US9220506B2 (en) | 2010-06-16 | 2015-12-29 | DePuy Synthes Products, Inc. | Occlusive device with stretch resistant member and anchor filament |
US9247942B2 (en) | 2010-06-29 | 2016-02-02 | Artventive Medical Group, Inc. | Reversible tubal contraceptive device |
EP2588042A4 (en) | 2010-06-29 | 2015-03-18 | Artventive Medical Group Inc | Reducing flow through a tubular structure |
CA2808673C (en) | 2010-09-10 | 2019-07-02 | Symetis Sa | Valve replacement devices, delivery device for a valve replacement device and method of production of a valve replacement device |
US20120095500A1 (en) * | 2010-10-14 | 2012-04-19 | Heuser Richard R | Concentric wire embolism protection device |
US9149277B2 (en) | 2010-10-18 | 2015-10-06 | Artventive Medical Group, Inc. | Expandable device delivery |
US9463036B2 (en) | 2010-10-22 | 2016-10-11 | Neuravi Limited | Clot engagement and removal system |
DE102010053111B4 (en) * | 2010-12-01 | 2012-10-25 | Acandis Gmbh & Co. Kg | Arrangement with a device for supplying a medical functional element |
US9770319B2 (en) | 2010-12-01 | 2017-09-26 | Surefire Medical, Inc. | Closed tip dynamic microvalve protection device |
US8948848B2 (en) * | 2011-01-07 | 2015-02-03 | Innovative Cardiovascular Solutions, Llc | Angiography catheter |
EP2680915B1 (en) | 2011-03-01 | 2021-12-22 | Endologix LLC | Catheter system |
US11259824B2 (en) | 2011-03-09 | 2022-03-01 | Neuravi Limited | Clot retrieval device for removing occlusive clot from a blood vessel |
ES2871050T3 (en) | 2011-03-09 | 2021-10-28 | Neuravi Ltd | A clot retrieval device to remove the occlusive clot from a blood vessel |
WO2012127309A1 (en) | 2011-03-21 | 2012-09-27 | Ontorfano Matteo | Disk-based valve apparatus and method for the treatment of valve dysfunction |
EP2520251A1 (en) | 2011-05-05 | 2012-11-07 | Symetis SA | Method and Apparatus for Compressing Stent-Valves |
US8795241B2 (en) | 2011-05-13 | 2014-08-05 | Spiration, Inc. | Deployment catheter |
WO2013009975A1 (en) | 2011-07-12 | 2013-01-17 | Boston Scientific Scimed, Inc. | Coupling system for medical devices |
US9089668B2 (en) | 2011-09-28 | 2015-07-28 | Surefire Medical, Inc. | Flow directional infusion device |
CA2852266C (en) * | 2011-10-18 | 2019-11-26 | William E. Cohn | Method and apparatus for treating a patient by intentionally occluding a blood vessel, including method and apparatus for inducing weight loss in a patient by intentionally occluding the celiac artery |
EP3682813B1 (en) | 2011-11-01 | 2023-12-27 | Coherex Medical, Inc. | Medical device for modification of left atrial appendage |
US9131926B2 (en) | 2011-11-10 | 2015-09-15 | Boston Scientific Scimed, Inc. | Direct connect flush system |
US8940014B2 (en) | 2011-11-15 | 2015-01-27 | Boston Scientific Scimed, Inc. | Bond between components of a medical device |
US8951243B2 (en) | 2011-12-03 | 2015-02-10 | Boston Scientific Scimed, Inc. | Medical device handle |
US9277993B2 (en) | 2011-12-20 | 2016-03-08 | Boston Scientific Scimed, Inc. | Medical device delivery systems |
US9510945B2 (en) | 2011-12-20 | 2016-12-06 | Boston Scientific Scimed Inc. | Medical device handle |
US10172708B2 (en) | 2012-01-25 | 2019-01-08 | Boston Scientific Scimed, Inc. | Valve assembly with a bioabsorbable gasket and a replaceable valve implant |
AU2013205292B9 (en) * | 2012-02-06 | 2016-09-01 | Artventive Medical Group, Inc. | Reversible tubal contraceptive device |
US9089341B2 (en) | 2012-02-28 | 2015-07-28 | Surefire Medical, Inc. | Renal nerve neuromodulation device |
US8992595B2 (en) | 2012-04-04 | 2015-03-31 | Trivascular, Inc. | Durable stent graft with tapered struts and stable delivery methods and devices |
US9498363B2 (en) | 2012-04-06 | 2016-11-22 | Trivascular, Inc. | Delivery catheter for endovascular device |
US9011513B2 (en) | 2012-05-09 | 2015-04-21 | Abbott Cardiovascular Systems Inc. | Catheter having hydraulic actuator |
US20130304180A1 (en) | 2012-05-09 | 2013-11-14 | Michael L. Green | Catheter having dual balloon hydraulic actuator |
US9883941B2 (en) | 2012-06-19 | 2018-02-06 | Boston Scientific Scimed, Inc. | Replacement heart valve |
US9204887B2 (en) | 2012-08-14 | 2015-12-08 | W. L. Gore & Associates, Inc. | Devices and systems for thrombus treatment |
US9095344B2 (en) | 2013-02-05 | 2015-08-04 | Artventive Medical Group, Inc. | Methods and apparatuses for blood vessel occlusion |
US8984733B2 (en) | 2013-02-05 | 2015-03-24 | Artventive Medical Group, Inc. | Bodily lumen occlusion |
US10531971B2 (en) * | 2013-03-12 | 2020-01-14 | Abbott Cardiovascular System Inc. | Balloon catheter having hydraulic actuator |
US9283101B2 (en) | 2013-03-12 | 2016-03-15 | Abbott Cardiovascular Systems Inc. | Catheter having hydraulic actuator and locking system |
US10420662B2 (en) | 2013-03-12 | 2019-09-24 | Abbott Cardiovascular Systems Inc. | Catheter having movable tubular structure and proximal stopper |
US9642635B2 (en) | 2013-03-13 | 2017-05-09 | Neuravi Limited | Clot removal device |
CN105050508A (en) * | 2013-03-14 | 2015-11-11 | 因库麦迪斯有限公司 | Device for delivering an implant to a vascular disorder of a patient |
CN109157304B (en) | 2013-03-14 | 2021-12-31 | 尼尔拉维有限公司 | A clot retrieval device for removing a clogged clot from a blood vessel |
US9433429B2 (en) | 2013-03-14 | 2016-09-06 | Neuravi Limited | Clot retrieval devices |
SI2967611T1 (en) | 2013-03-14 | 2019-04-30 | Neuravi Limited | Devices for removal of acute blockages from blood vessels |
WO2014141226A1 (en) | 2013-03-15 | 2014-09-18 | National University Of Ireland | A device suitable for removing matter from inside the lumen and the wall of a body lumen |
US9737306B2 (en) | 2013-06-14 | 2017-08-22 | Artventive Medical Group, Inc. | Implantable luminal devices |
US9737308B2 (en) * | 2013-06-14 | 2017-08-22 | Artventive Medical Group, Inc. | Catheter-assisted tumor treatment |
US10149968B2 (en) | 2013-06-14 | 2018-12-11 | Artventive Medical Group, Inc. | Catheter-assisted tumor treatment |
AU2014277922B2 (en) | 2013-06-14 | 2019-01-31 | Avantec Vascular Corporation | Inferior Vena Cava filter and retrieval systems |
US9636116B2 (en) | 2013-06-14 | 2017-05-02 | Artventive Medical Group, Inc. | Implantable luminal devices |
US9561103B2 (en) | 2013-07-17 | 2017-02-07 | Cephea Valve Technologies, Inc. | System and method for cardiac valve repair and replacement |
JP6563394B2 (en) | 2013-08-30 | 2019-08-21 | イェーナヴァルヴ テクノロジー インコーポレイテッド | Radially foldable frame for an artificial valve and method for manufacturing the frame |
US10285720B2 (en) | 2014-03-11 | 2019-05-14 | Neuravi Limited | Clot retrieval system for removing occlusive clot from a blood vessel |
US9889031B1 (en) | 2014-03-25 | 2018-02-13 | Surefire Medical, Inc. | Method of gastric artery embolization |
US9968740B2 (en) | 2014-03-25 | 2018-05-15 | Surefire Medical, Inc. | Closed tip dynamic microvalve protection device |
US10363043B2 (en) | 2014-05-01 | 2019-07-30 | Artventive Medical Group, Inc. | Treatment of incompetent vessels |
US10792056B2 (en) | 2014-06-13 | 2020-10-06 | Neuravi Limited | Devices and methods for removal of acute blockages from blood vessels |
US10441301B2 (en) | 2014-06-13 | 2019-10-15 | Neuravi Limited | Devices and methods for removal of acute blockages from blood vessels |
US10265086B2 (en) | 2014-06-30 | 2019-04-23 | Neuravi Limited | System for removing a clot from a blood vessel |
JP2016016197A (en) * | 2014-07-10 | 2016-02-01 | 有限会社Ptmc研究所 | Medical tool |
WO2016010996A1 (en) * | 2014-07-15 | 2016-01-21 | Stryker Corporation | Vascular access system and method of use |
WO2016073530A1 (en) | 2014-11-04 | 2016-05-12 | Avantec Vascular Corporation | Catheter device with longitudinally expanding interior components for compressing cancellous bone |
EP3017775A1 (en) | 2014-11-07 | 2016-05-11 | National University of Ireland, Galway | A thrombectomy device |
US9901445B2 (en) | 2014-11-21 | 2018-02-27 | Boston Scientific Scimed, Inc. | Valve locking mechanism |
US10617435B2 (en) | 2014-11-26 | 2020-04-14 | Neuravi Limited | Clot retrieval device for removing clot from a blood vessel |
US11253278B2 (en) | 2014-11-26 | 2022-02-22 | Neuravi Limited | Clot retrieval system for removing occlusive clot from a blood vessel |
JP2017535352A (en) | 2014-11-26 | 2017-11-30 | ニューラヴィ・リミテッド | Clot collection device for removing obstructive clots from blood vessels |
WO2016093877A1 (en) | 2014-12-09 | 2016-06-16 | Cephea Valve Technologies, Inc. | Replacement cardiac valves and methods of use and manufacture |
EP3229729B1 (en) | 2014-12-12 | 2023-03-15 | Avantec Vascular Corporation | Ivc filter retrieval systems with interposed support members |
US10278804B2 (en) | 2014-12-12 | 2019-05-07 | Avantec Vascular Corporation | IVC filter retrieval systems with releasable capture feature |
WO2016115375A1 (en) | 2015-01-16 | 2016-07-21 | Boston Scientific Scimed, Inc. | Displacement based lock and release mechanism |
US9861477B2 (en) | 2015-01-26 | 2018-01-09 | Boston Scientific Scimed Inc. | Prosthetic heart valve square leaflet-leaflet stitch |
US9788942B2 (en) | 2015-02-03 | 2017-10-17 | Boston Scientific Scimed Inc. | Prosthetic heart valve having tubular seal |
WO2016126524A1 (en) | 2015-02-03 | 2016-08-11 | Boston Scientific Scimed, Inc. | Prosthetic heart valve having tubular seal |
US10426617B2 (en) | 2015-03-06 | 2019-10-01 | Boston Scientific Scimed, Inc. | Low profile valve locking mechanism and commissure assembly |
US10285809B2 (en) | 2015-03-06 | 2019-05-14 | Boston Scientific Scimed Inc. | TAVI anchoring assist device |
US10080652B2 (en) | 2015-03-13 | 2018-09-25 | Boston Scientific Scimed, Inc. | Prosthetic heart valve having an improved tubular seal |
US20160287839A1 (en) | 2015-03-31 | 2016-10-06 | Surefire Medical, Inc. | Apparatus and Method for Infusing an Immunotherapy Agent to a Solid Tumor for Treatment |
US9755091B2 (en) * | 2015-04-06 | 2017-09-05 | The Boeing Company | Dual-band infrared detector and method of detecting multiple bands of infrared radiation |
CN107530168B (en) | 2015-05-01 | 2020-06-09 | 耶拿阀门科技股份有限公司 | Device and method with reduced pacemaker ratio in heart valve replacement |
WO2018136959A1 (en) | 2017-01-23 | 2018-07-26 | Cephea Valve Technologies, Inc. | Replacement mitral valves |
EP3294221B1 (en) | 2015-05-14 | 2024-03-06 | Cephea Valve Technologies, Inc. | Replacement mitral valves |
EP3294220B1 (en) | 2015-05-14 | 2023-12-06 | Cephea Valve Technologies, Inc. | Cardiac valve delivery devices and systems |
CN107624056B (en) | 2015-06-30 | 2020-06-09 | 恩朵罗杰克斯股份有限公司 | Locking assembly and related system and method |
US10195392B2 (en) | 2015-07-02 | 2019-02-05 | Boston Scientific Scimed, Inc. | Clip-on catheter |
WO2017004377A1 (en) | 2015-07-02 | 2017-01-05 | Boston Scientific Scimed, Inc. | Adjustable nosecone |
WO2017019572A1 (en) | 2015-07-24 | 2017-02-02 | Ichor Vascular Inc. | Embolectomy system and methods of making same |
WO2017024258A1 (en) * | 2015-08-06 | 2017-02-09 | Kp Medcure, Inc. | Axially lengthening thrombus capture system |
US10136991B2 (en) | 2015-08-12 | 2018-11-27 | Boston Scientific Scimed Inc. | Replacement heart valve implant |
US10179041B2 (en) | 2015-08-12 | 2019-01-15 | Boston Scientific Scimed Icn. | Pinless release mechanism |
EP3344184A4 (en) | 2015-09-01 | 2019-05-15 | Mivi Neuroscience, Inc. | Thrombectomy devices and treatment of acute ischemic stroke with thrombus engagement |
US10779940B2 (en) | 2015-09-03 | 2020-09-22 | Boston Scientific Scimed, Inc. | Medical device handle |
CN108024821B (en) | 2015-09-21 | 2020-10-30 | 斯瑞克公司 | Embolectomy device |
WO2017053271A1 (en) | 2015-09-21 | 2017-03-30 | Stryker Corporation | Embolectomy devices |
US10342660B2 (en) | 2016-02-02 | 2019-07-09 | Boston Scientific Inc. | Tensioned sheathing aids |
US10813644B2 (en) | 2016-04-01 | 2020-10-27 | Artventive Medical Group, Inc. | Occlusive implant and delivery system |
EP4183371A1 (en) | 2016-05-13 | 2023-05-24 | JenaValve Technology, Inc. | Heart valve prosthesis delivery system and method for delivery of heart valve prosthesis with introducer sheath and loading system |
US10245136B2 (en) | 2016-05-13 | 2019-04-02 | Boston Scientific Scimed Inc. | Containment vessel with implant sheathing guide |
US10583005B2 (en) | 2016-05-13 | 2020-03-10 | Boston Scientific Scimed, Inc. | Medical device handle |
US10201416B2 (en) | 2016-05-16 | 2019-02-12 | Boston Scientific Scimed, Inc. | Replacement heart valve implant with invertible leaflets |
US11331187B2 (en) | 2016-06-17 | 2022-05-17 | Cephea Valve Technologies, Inc. | Cardiac valve delivery devices and systems |
AU2017312421A1 (en) | 2016-08-17 | 2019-03-07 | Neuravi Limited | A clot retrieval system for removing occlusive clot from a blood vessel |
CN109906058B (en) | 2016-09-06 | 2022-06-07 | 尼尔拉维有限公司 | Clot retrieval device for removing an occluded clot from a blood vessel |
US11400263B1 (en) | 2016-09-19 | 2022-08-02 | Trisalus Life Sciences, Inc. | System and method for selective pressure-controlled therapeutic delivery |
US10780250B1 (en) | 2016-09-19 | 2020-09-22 | Surefire Medical, Inc. | System and method for selective pressure-controlled therapeutic delivery |
EP3558161A4 (en) | 2016-12-22 | 2020-08-12 | Avantec Vascular Corporation | Systems, devices, and methods for retrieval systems having a tether |
US10953204B2 (en) | 2017-01-09 | 2021-03-23 | Boston Scientific Scimed, Inc. | Guidewire with tactile feel |
AU2018203053B2 (en) | 2017-01-23 | 2020-03-05 | Cephea Valve Technologies, Inc. | Replacement mitral valves |
JP7094965B2 (en) | 2017-01-27 | 2022-07-04 | イエナバルブ テクノロジー インク | Heart valve imitation |
US11026693B2 (en) * | 2017-02-23 | 2021-06-08 | John S. DeMeritt | Endovascular occlusive device and associated surgical methodology |
US10588636B2 (en) | 2017-03-20 | 2020-03-17 | Surefire Medical, Inc. | Dynamic reconfigurable microvalve protection device |
EP3609561A4 (en) * | 2017-04-13 | 2021-01-06 | C.R. Bard, Inc. | Catheter insertion tray with integrated instructions |
US10869689B2 (en) | 2017-05-03 | 2020-12-22 | Medtronic Vascular, Inc. | Tissue-removing catheter |
US11690645B2 (en) | 2017-05-03 | 2023-07-04 | Medtronic Vascular, Inc. | Tissue-removing catheter |
WO2018226915A1 (en) | 2017-06-08 | 2018-12-13 | Boston Scientific Scimed, Inc. | Heart valve implant commissure support structure |
CN111031963B (en) | 2017-07-17 | 2023-08-18 | 安特瑞斯技术公司 | Sterile packaging system for catheters |
CN111163729B (en) | 2017-08-01 | 2022-03-29 | 波士顿科学国际有限公司 | Medical implant locking mechanism |
US10939996B2 (en) | 2017-08-16 | 2021-03-09 | Boston Scientific Scimed, Inc. | Replacement heart valve commissure assembly |
US11246625B2 (en) | 2018-01-19 | 2022-02-15 | Boston Scientific Scimed, Inc. | Medical device delivery system with feedback loop |
JP7055882B2 (en) | 2018-01-19 | 2022-04-18 | ボストン サイエンティフィック サイムド,インコーポレイテッド | Guidance mode indwelling sensor for transcatheter valve system |
US11147668B2 (en) | 2018-02-07 | 2021-10-19 | Boston Scientific Scimed, Inc. | Medical device delivery system with alignment feature |
WO2019165394A1 (en) | 2018-02-26 | 2019-08-29 | Boston Scientific Scimed, Inc. | Embedded radiopaque marker in adaptive seal |
WO2019173475A1 (en) | 2018-03-07 | 2019-09-12 | Innovative Cardiovascular Solutions, Llc | Embolic protection device |
WO2019195860A2 (en) | 2018-04-04 | 2019-10-10 | Vdyne, Llc | Devices and methods for anchoring transcatheter heart valve |
CN112399836A (en) | 2018-05-15 | 2021-02-23 | 波士顿科学国际有限公司 | Replacement heart valve commissure assemblies |
US11241310B2 (en) | 2018-06-13 | 2022-02-08 | Boston Scientific Scimed, Inc. | Replacement heart valve delivery device |
CN112584799A (en) | 2018-06-29 | 2021-03-30 | 阿万泰血管公司 | Systems and methods for implants and deployment devices |
US11850398B2 (en) | 2018-08-01 | 2023-12-26 | Trisalus Life Sciences, Inc. | Systems and methods for pressure-facilitated therapeutic agent delivery |
US20200069913A1 (en) * | 2018-09-05 | 2020-03-05 | Boston Scientific Scimed, Inc. | Aorto ostial fluid directing device |
US10842498B2 (en) | 2018-09-13 | 2020-11-24 | Neuravi Limited | Systems and methods of restoring perfusion to a vessel |
US11344413B2 (en) | 2018-09-20 | 2022-05-31 | Vdyne, Inc. | Transcatheter deliverable prosthetic heart valves and methods of delivery |
US10321995B1 (en) | 2018-09-20 | 2019-06-18 | Vdyne, Llc | Orthogonally delivered transcatheter heart valve replacement |
US10595994B1 (en) | 2018-09-20 | 2020-03-24 | Vdyne, Llc | Side-delivered transcatheter heart valve replacement |
US11278437B2 (en) | 2018-12-08 | 2022-03-22 | Vdyne, Inc. | Compression capable annular frames for side delivery of transcatheter heart valve replacement |
US11071627B2 (en) | 2018-10-18 | 2021-07-27 | Vdyne, Inc. | Orthogonally delivered transcatheter heart valve frame for valve in valve prosthesis |
US11406416B2 (en) | 2018-10-02 | 2022-08-09 | Neuravi Limited | Joint assembly for vasculature obstruction capture device |
US11338117B2 (en) | 2018-10-08 | 2022-05-24 | Trisalus Life Sciences, Inc. | Implantable dual pathway therapeutic agent delivery port |
US11109969B2 (en) | 2018-10-22 | 2021-09-07 | Vdyne, Inc. | Guidewire delivery of transcatheter heart valve |
CN112996447A (en) | 2018-11-16 | 2021-06-18 | 美敦力瓦斯科尔勒公司 | Tissue removal catheter |
WO2020123486A1 (en) | 2018-12-10 | 2020-06-18 | Boston Scientific Scimed, Inc. | Medical device delivery system including a resistance member |
US11253359B2 (en) | 2018-12-20 | 2022-02-22 | Vdyne, Inc. | Proximal tab for side-delivered transcatheter heart valves and methods of delivery |
US11751986B2 (en) * | 2019-01-04 | 2023-09-12 | Cook Medical Technologies Llc | Packaging system for ureteral stent |
US11185409B2 (en) | 2019-01-26 | 2021-11-30 | Vdyne, Inc. | Collapsible inner flow control component for side-delivered transcatheter heart valve prosthesis |
US11273032B2 (en) | 2019-01-26 | 2022-03-15 | Vdyne, Inc. | Collapsible inner flow control component for side-deliverable transcatheter heart valve prosthesis |
US11383066B2 (en) * | 2019-02-05 | 2022-07-12 | Virginia Commonwealth University | Guidewire systems and methods for preventing wire advancement into the body during catheterization |
EP4000540B1 (en) | 2019-03-04 | 2024-02-14 | Neuravi Limited | Actuated clot retrieval catheter |
AU2020231221A1 (en) | 2019-03-05 | 2021-09-23 | Vdyne, Inc. | Tricuspid regurgitation control devices for orthogonal transcatheter heart valve prosthesis |
US11173027B2 (en) | 2019-03-14 | 2021-11-16 | Vdyne, Inc. | Side-deliverable transcatheter prosthetic valves and methods for delivering and anchoring the same |
US11076956B2 (en) | 2019-03-14 | 2021-08-03 | Vdyne, Inc. | Proximal, distal, and anterior anchoring tabs for side-delivered transcatheter mitral valve prosthesis |
CN114072106A (en) | 2019-05-04 | 2022-02-18 | 维迪内股份有限公司 | Cinching device and method for deploying a laterally delivered prosthetic heart valve in a native annulus |
US11439504B2 (en) | 2019-05-10 | 2022-09-13 | Boston Scientific Scimed, Inc. | Replacement heart valve with improved cusp washout and reduced loading |
US11819236B2 (en) | 2019-05-17 | 2023-11-21 | Medtronic Vascular, Inc. | Tissue-removing catheter |
US11369355B2 (en) | 2019-06-17 | 2022-06-28 | Coherex Medical, Inc. | Medical device and system for occluding a tissue opening and method thereof |
JP2022544707A (en) | 2019-08-20 | 2022-10-20 | ブイダイン,インコーポレイテッド | Devices and methods for delivery and retrieval of laterally deliverable transcatheter valve prostheses |
JP2022545728A (en) | 2019-08-26 | 2022-10-28 | ブイダイン,インコーポレイテッド | Transcatheter prosthetic valves capable of lateral delivery and methods for their delivery and fixation |
US11529495B2 (en) | 2019-09-11 | 2022-12-20 | Neuravi Limited | Expandable mouth catheter |
US11712231B2 (en) | 2019-10-29 | 2023-08-01 | Neuravi Limited | Proximal locking assembly design for dual stent mechanical thrombectomy device |
CN115175638A (en) | 2019-11-05 | 2022-10-11 | 瓦斯科尔勒治疗股份有限公司 | Axially elongated thrombus capture system, tensioning system, and expandable funnel catheter |
US11839725B2 (en) | 2019-11-27 | 2023-12-12 | Neuravi Limited | Clot retrieval device with outer sheath and inner catheter |
US11779364B2 (en) | 2019-11-27 | 2023-10-10 | Neuravi Limited | Actuated expandable mouth thrombectomy catheter |
US11517340B2 (en) | 2019-12-03 | 2022-12-06 | Neuravi Limited | Stentriever devices for removing an occlusive clot from a vessel and methods thereof |
WO2021146110A1 (en) * | 2020-01-16 | 2021-07-22 | Edwards Lifesciences Corporation | Introducer sheath with camming tip |
US11234813B2 (en) | 2020-01-17 | 2022-02-01 | Vdyne, Inc. | Ventricular stability elements for side-deliverable prosthetic heart valves and methods of delivery |
US11944327B2 (en) | 2020-03-05 | 2024-04-02 | Neuravi Limited | Expandable mouth aspirating clot retrieval catheter |
US11633198B2 (en) | 2020-03-05 | 2023-04-25 | Neuravi Limited | Catheter proximal joint |
US11883043B2 (en) | 2020-03-31 | 2024-01-30 | DePuy Synthes Products, Inc. | Catheter funnel extension |
US11759217B2 (en) | 2020-04-07 | 2023-09-19 | Neuravi Limited | Catheter tubular support |
US11871946B2 (en) | 2020-04-17 | 2024-01-16 | Neuravi Limited | Clot retrieval device for removing clot from a blood vessel |
US11730501B2 (en) | 2020-04-17 | 2023-08-22 | Neuravi Limited | Floating clot retrieval device for removing clots from a blood vessel |
US11717308B2 (en) | 2020-04-17 | 2023-08-08 | Neuravi Limited | Clot retrieval device for removing heterogeneous clots from a blood vessel |
US11737771B2 (en) | 2020-06-18 | 2023-08-29 | Neuravi Limited | Dual channel thrombectomy device |
US11937836B2 (en) | 2020-06-22 | 2024-03-26 | Neuravi Limited | Clot retrieval system with expandable clot engaging framework |
US11395669B2 (en) | 2020-06-23 | 2022-07-26 | Neuravi Limited | Clot retrieval device with flexible collapsible frame |
US11439418B2 (en) | 2020-06-23 | 2022-09-13 | Neuravi Limited | Clot retrieval device for removing clot from a blood vessel |
US11864781B2 (en) | 2020-09-23 | 2024-01-09 | Neuravi Limited | Rotating frame thrombectomy device |
US11812969B2 (en) | 2020-12-03 | 2023-11-14 | Coherex Medical, Inc. | Medical device and system for occluding a tissue opening and method thereof |
WO2022125621A1 (en) * | 2020-12-09 | 2022-06-16 | Edwards Lifesciences Corporation | Dock holder, packaging, and methods of use |
US11937837B2 (en) | 2020-12-29 | 2024-03-26 | Neuravi Limited | Fibrin rich / soft clot mechanical thrombectomy device |
US11872354B2 (en) | 2021-02-24 | 2024-01-16 | Neuravi Limited | Flexible catheter shaft frame with seam |
US11937839B2 (en) | 2021-09-28 | 2024-03-26 | Neuravi Limited | Catheter with electrically actuated expandable mouth |
Citations (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4790812A (en) * | 1985-11-15 | 1988-12-13 | Hawkins Jr Irvin F | Apparatus and method for removing a target object from a body passsageway |
US4832055A (en) * | 1988-07-08 | 1989-05-23 | Palestrant Aubrey M | Mechanically locking blood clot filter |
US5454788A (en) * | 1991-04-24 | 1995-10-03 | Baxter International Inc. | Exchangeable integrated-wire balloon catheter |
US5647858A (en) * | 1989-07-25 | 1997-07-15 | Smith & Nephew, Inc. | Zirconium oxide and zirconium nitride coated catheters |
US5662671A (en) * | 1996-07-17 | 1997-09-02 | Embol-X, Inc. | Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries |
US5769816A (en) * | 1995-11-07 | 1998-06-23 | Embol-X, Inc. | Cannula with associated filter |
US5814064A (en) * | 1997-03-06 | 1998-09-29 | Scimed Life Systems, Inc. | Distal protection device |
US5895410A (en) * | 1997-09-12 | 1999-04-20 | B. Braun Medical, Inc. | Introducer for an expandable vascular occlusion device |
US5911734A (en) * | 1997-05-08 | 1999-06-15 | Embol-X, Inc. | Percutaneous catheter and guidewire having filter and medical device deployment capabilities |
US5941869A (en) * | 1997-02-12 | 1999-08-24 | Prolifix Medical, Inc. | Apparatus and method for controlled removal of stenotic material from stents |
US5989281A (en) * | 1995-11-07 | 1999-11-23 | Embol-X, Inc. | Cannula with associated filter and methods of use during cardiac surgery |
US6027509A (en) * | 1996-10-03 | 2000-02-22 | Scimed Life Systems, Inc. | Stent retrieval device |
US6146396A (en) * | 1999-03-05 | 2000-11-14 | Board Of Regents, The University Of Texas System | Declotting method and apparatus |
US6179859B1 (en) * | 1999-07-16 | 2001-01-30 | Baff Llc | Emboli filtration system and methods of use |
US20010012951A1 (en) * | 1999-07-16 | 2001-08-09 | Bates Mark C. | Emboli filtration system having integral strut arrangement and methods of use |
US6325815B1 (en) * | 1999-09-21 | 2001-12-04 | Microvena Corporation | Temporary vascular filter |
US20020026213A1 (en) * | 1997-11-07 | 2002-02-28 | Paul Gilson | Embolic protection device |
US20020111648A1 (en) * | 1999-08-27 | 2002-08-15 | Kusleika Richard S. | Slideable vascular filter |
US20020128681A1 (en) * | 2000-11-27 | 2002-09-12 | Scimed Life Systems, Inc. | Distal protection device and method |
US20020143360A1 (en) * | 2001-04-03 | 2002-10-03 | Nareak Douk | Temporary intraluminal filter guidewire |
US20020151927A1 (en) * | 2001-04-03 | 2002-10-17 | Nareak Douk | Temporary intraluminal filter guidewire and methods of use |
US20020169414A1 (en) * | 2000-02-01 | 2002-11-14 | Kletschka Harold D. | Embolic protection device having expandable trap |
US20030042186A1 (en) * | 2001-08-31 | 2003-03-06 | Boyle William J. | Embolic protection devices one way porous membrane |
US20030083692A1 (en) * | 2001-10-29 | 2003-05-01 | Scimed Life Systems, Inc. | Distal protection device and method of use thereof |
US20030212431A1 (en) * | 2002-05-13 | 2003-11-13 | Eamon Brady | Embolic protection system |
US7094249B1 (en) * | 1997-03-06 | 2006-08-22 | Boston Scientific Scimed, Inc. | Distal protection device and method |
Family Cites Families (446)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US22858A (en) * | 1859-02-08 | Washing-machine | ||
US52626A (en) * | 1866-02-13 | Improvement in hand-looms | ||
US22860A (en) * | 1859-02-08 | Improvement in cultivators | ||
US41908A (en) * | 1864-03-15 | Improvement in saw-mills | ||
US62133A (en) * | 1867-02-19 | Improved ice-watee eeoeptaole | ||
US492858A (en) * | 1893-03-07 | Metal bending machine | ||
US1794928A (en) * | 1924-05-23 | 1931-03-03 | Herman A Schatz | Internal-combustion engine |
US2344138A (en) * | 1940-05-20 | 1944-03-14 | Chemical Developments Corp | Coating method |
US2943626A (en) | 1957-01-31 | 1960-07-05 | Dormia Enrico | Instruments for the extraction of foreign bodies |
US2854983A (en) * | 1957-10-31 | 1958-10-07 | Arnold M Baskin | Inflatable catheter |
DE1212319B (en) * | 1962-09-25 | 1966-03-10 | Leybolds Nachfolger E | Semiconductor arrangement for demonstration purposes |
US3334629A (en) * | 1964-11-09 | 1967-08-08 | Bertram D Cohn | Occlusive device for inferior vena cava |
US3435824A (en) * | 1966-10-27 | 1969-04-01 | Herminio Gamponia | Surgical apparatus and related process |
US3540431A (en) * | 1968-04-04 | 1970-11-17 | Kazi Mobin Uddin | Collapsible filter for fluid flowing in closed passageway |
US3692029A (en) * | 1971-05-03 | 1972-09-19 | Edwin Lloyd Adair | Retention catheter and suprapubic shunt |
US3730185A (en) * | 1971-10-29 | 1973-05-01 | Cook Inc | Endarterectomy apparatus |
US3952747A (en) * | 1974-03-28 | 1976-04-27 | Kimmell Jr Garman O | Filter and filter insertion instrument |
DE2821048C2 (en) | 1978-05-13 | 1980-07-17 | Willy Ruesch Gmbh & Co Kg, 7053 Kernen | Medical instrument |
SE424045B (en) * | 1979-01-12 | 1982-06-28 | Tesi Ab | CATHETER |
US4295464A (en) * | 1980-03-21 | 1981-10-20 | Shihata Alfred A | Ureteric stone extractor with two ballooned catheters |
US4404971A (en) * | 1981-04-03 | 1983-09-20 | Leveen Harry H | Dual balloon catheter |
DE3118785A1 (en) * | 1981-05-12 | 1982-12-02 | Siemens AG, 1000 Berlin und 8000 München | METHOD AND DEVICE FOR DOPING SEMICONDUCTOR MATERIAL |
US4425908A (en) * | 1981-10-22 | 1984-01-17 | Beth Israel Hospital | Blood clot filter |
DE3235974A1 (en) * | 1981-11-24 | 1983-06-01 | Volkmar Dipl.-Ing. Merkel (FH), 8520 Erlangen | DEVICE FOR REMOVAL OR FOR THE EXPANSION OF CONSTRAINTS IN BODY LIQUID LEADING VESSELS |
US4425909A (en) * | 1982-01-04 | 1984-01-17 | Rieser Michael J | Laryngoscope |
US4423725A (en) * | 1982-03-31 | 1984-01-03 | Baran Ostap E | Multiple surgical cuff |
US4445892A (en) * | 1982-05-06 | 1984-05-01 | Laserscope, Inc. | Dual balloon catheter device |
US4493711A (en) * | 1982-06-25 | 1985-01-15 | Thomas J. Fogarty | Tubular extrusion catheter |
US4643184A (en) * | 1982-09-29 | 1987-02-17 | Mobin Uddin Kazi | Embolus trap |
US4512762A (en) * | 1982-11-23 | 1985-04-23 | The Beth Israel Hospital Association | Method of treatment of atherosclerosis and a balloon catheter for same |
US4500563A (en) * | 1982-12-15 | 1985-02-19 | Pacific Western Systems, Inc. | Independently variably controlled pulsed R.F. plasma chemical vapor processing |
DE3419962A1 (en) * | 1983-05-30 | 1984-12-06 | Olympus Optical Co., Ltd., Tokio/Tokyo | HIGH FREQUENCY INCISION AND EXCISION INSTRUMENT |
US4585000A (en) * | 1983-09-28 | 1986-04-29 | Cordis Corporation | Expandable device for treating intravascular stenosis |
JPS60153119A (en) * | 1984-01-20 | 1985-08-12 | Fuji Electric Corp Res & Dev Ltd | Impurity diffusing method |
US4586919A (en) * | 1984-04-06 | 1986-05-06 | Taheri Syde A | External shunt and method for procuring and preserving the endothelium of a vein used in arterial bypass |
US4611594A (en) * | 1984-04-11 | 1986-09-16 | Northwestern University | Medical instrument for containment and removal of calculi |
DK151404C (en) * | 1984-05-23 | 1988-07-18 | Cook Europ Aps William | FULLY FILTER FOR IMPLANTATION IN A PATIENT'S BLOOD |
US4926858A (en) | 1984-05-30 | 1990-05-22 | Devices For Vascular Intervention, Inc. | Atherectomy device for severe occlusions |
US4807626A (en) * | 1985-02-14 | 1989-02-28 | Mcgirr Douglas B | Stone extractor and method |
FR2580504B1 (en) | 1985-04-22 | 1987-07-10 | Pieronne Alain | FILTER FOR THE PARTIAL AND AT LEAST PROVISIONAL INTERRUPTION OF A VEIN AND CATHETER CARRYING THE FILTER |
US4650466A (en) * | 1985-11-01 | 1987-03-17 | Angiobrade Partners | Angioplasty device |
EP0256683A3 (en) | 1986-08-04 | 1989-08-09 | Aries Medical Incorporated | Means for furling a balloon of a balloon catheter |
US4723549A (en) * | 1986-09-18 | 1988-02-09 | Wholey Mark H | Method and apparatus for dilating blood vessels |
US4712551A (en) | 1986-10-14 | 1987-12-15 | Rayhanabad Simon B | Vascular shunt |
FR2606641B1 (en) | 1986-11-17 | 1991-07-12 | Promed | FILTERING DEVICE FOR BLOOD CLOTS |
US4892753A (en) * | 1986-12-19 | 1990-01-09 | Applied Materials, Inc. | Process for PECVD of silicon oxide using TEOS decomposition |
US4865030A (en) * | 1987-01-21 | 1989-09-12 | American Medical Systems, Inc. | Apparatus for removal of objects from body passages |
GB2200848B (en) | 1987-02-25 | 1991-02-13 | Mo Med Inst Pirogova | Intravenous filter, and apparatus and method for preoperative preparation thereof |
US4817600A (en) * | 1987-05-22 | 1989-04-04 | Medi-Tech, Inc. | Implantable filter |
US4912065A (en) * | 1987-05-28 | 1990-03-27 | Matsushita Electric Industrial Co., Ltd. | Plasma doping method |
US4794928A (en) | 1987-06-10 | 1989-01-03 | Kletschka Harold D | Angioplasty device and method of using the same |
FR2616666A1 (en) | 1987-06-22 | 1988-12-23 | Scit Sc | Device of the catheter type for extracting and repositioning filters of the Greenfield or similar type which are wrongly positioned, through the vein |
US4867156A (en) * | 1987-06-25 | 1989-09-19 | Stack Richard S | Percutaneous axial atheroectomy catheter assembly and method of using the same |
US4873978A (en) * | 1987-12-04 | 1989-10-17 | Robert Ginsburg | Device and method for emboli retrieval |
FR2632864B2 (en) * | 1987-12-31 | 1990-10-19 | Biomat Sarl | ANTI-EMBOLIC ELASTIC FILTERING SYSTEM FOR CELLAR VEIN AND ASSEMBLY OF MEANS FOR ITS PLACEMENT |
US4886061A (en) | 1988-02-09 | 1989-12-12 | Medinnovations, Inc. | Expandable pullback atherectomy catheter system |
FR2632848A1 (en) * | 1988-06-21 | 1989-12-22 | Lefebvre Jean Marie | FILTER FOR MEDICAL USE |
US4998923A (en) * | 1988-08-11 | 1991-03-12 | Advanced Cardiovascular Systems, Inc. | Steerable dilatation catheter |
US5011488A (en) | 1988-12-07 | 1991-04-30 | Robert Ginsburg | Thrombus extraction system |
US5254622A (en) | 1988-12-09 | 1993-10-19 | Asahi Kasei Kogyo Kabushiki Kaisha | ABS resin compositions and molded articles thereof having improved coating performances |
US4927426A (en) | 1989-01-03 | 1990-05-22 | Dretler Stephen P | Catheter device |
US5152777A (en) * | 1989-01-25 | 1992-10-06 | Uresil Corporation | Device and method for providing protection from emboli and preventing occulsion of blood vessels |
US4969891A (en) | 1989-03-06 | 1990-11-13 | Gewertz Bruce L | Removable vascular filter |
DE9010130U1 (en) | 1989-07-13 | 1990-09-13 | American Medical Systems, Inc., Minnetonka, Minn., Us | |
US5092839A (en) * | 1989-09-29 | 1992-03-03 | Kipperman Robert M | Coronary thrombectomy |
GB2238485B (en) * | 1989-11-28 | 1993-07-14 | Cook William Europ | A collapsible filter for introduction in a blood vessel of a patient |
US5421832A (en) * | 1989-12-13 | 1995-06-06 | Lefebvre; Jean-Marie | Filter-catheter and method of manufacturing same |
US5122125A (en) | 1990-04-25 | 1992-06-16 | Ashridge A.G. | Catheter for angioplasty with soft centering tip |
US5171233A (en) | 1990-04-25 | 1992-12-15 | Microvena Corporation | Snare-type probe |
CA2038605C (en) | 1990-06-15 | 2000-06-27 | Leonard Pinchuk | Crack-resistant polycarbonate urethane polymer prostheses and the like |
CA2048307C (en) | 1990-08-14 | 1998-08-18 | Rolf Gunther | Method and apparatus for filtering blood in a blood vessel of a patient |
US5108419A (en) | 1990-08-16 | 1992-04-28 | Evi Corporation | Endovascular filter and method for use thereof |
US5100423A (en) * | 1990-08-21 | 1992-03-31 | Medical Engineering & Development Institute, Inc. | Ablation catheter |
US5222971A (en) * | 1990-10-09 | 1993-06-29 | Scimed Life Systems, Inc. | Temporary stent and methods for use and manufacture |
US5178158A (en) | 1990-10-29 | 1993-01-12 | Boston Scientific Corporation | Convertible guidewire-catheter with soft tip |
US5053008A (en) | 1990-11-21 | 1991-10-01 | Sandeep Bajaj | Intracardiac catheter |
FR2671283B1 (en) | 1991-01-08 | 1995-05-12 | Alain Durand | INTRAVASCULAR MULTI-LIGHT CATHETER, LIKELY TO BE IMPLANTED WITH TUNNELLING. |
JPH04241226A (en) * | 1991-01-09 | 1992-08-28 | Fuji Photo Film Co Ltd | Production of magnetic recording medium |
US5288650A (en) * | 1991-01-25 | 1994-02-22 | Ibis Technology Corporation | Prenucleation process for simox device fabrication |
US5290247A (en) * | 1991-05-21 | 1994-03-01 | C. R. Bard, Inc. | Intracoronary exchange apparatus and method |
US5490837A (en) * | 1991-07-05 | 1996-02-13 | Scimed Life Systems, Inc. | Single operator exchange catheter having a distal catheter shaft section |
US5879499A (en) * | 1996-06-17 | 1999-03-09 | Heartport, Inc. | Method of manufacture of a multi-lumen catheter |
DE9109006U1 (en) | 1991-07-22 | 1991-10-10 | Schmitz-Rode, Thomas, Dipl.-Ing. Dr.Med., 5100 Aachen, De | |
US5389087A (en) * | 1991-09-19 | 1995-02-14 | Baxter International Inc. | Fully exchangeable over-the-wire catheter with rip seam and gated side port |
US5290382A (en) * | 1991-12-13 | 1994-03-01 | Hughes Aircraft Company | Methods and apparatus for generating a plasma for "downstream" rapid shaping of surfaces of substrates and films |
US5626605A (en) | 1991-12-30 | 1997-05-06 | Scimed Life Systems, Inc. | Thrombosis filter |
US5192284A (en) | 1992-01-10 | 1993-03-09 | Pleatman Mark A | Surgical collector and extractor |
FR2689388B1 (en) | 1992-04-07 | 1999-07-16 | Celsa Lg | PERFECTIONALLY RESORBABLE BLOOD FILTER. |
US5277751A (en) * | 1992-06-18 | 1994-01-11 | Ogle John S | Method and apparatus for producing low pressure planar plasma using a coil with its axis parallel to the surface of a coupling window |
US5324304A (en) | 1992-06-18 | 1994-06-28 | William Cook Europe A/S | Introduction catheter set for a collapsible self-expandable implant |
JP2552820B2 (en) * | 1992-09-23 | 1996-11-13 | ターゲット セラピューティクス,インコーポレイテッド | Medical recovery equipment |
AU657381B2 (en) | 1992-11-03 | 1995-03-09 | Robert E. Fischell | Radiopaque non-kinking thin-walled introducer sheath |
US5540707A (en) * | 1992-11-13 | 1996-07-30 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
FR2699809B1 (en) * | 1992-12-28 | 1995-02-17 | Celsa Lg | Device which can selectively constitute a temporary blood filter. |
US5354310A (en) | 1993-03-22 | 1994-10-11 | Cordis Corporation | Expandable temporary graft |
US5843167A (en) | 1993-04-22 | 1998-12-01 | C. R. Bard, Inc. | Method and apparatus for recapture of hooked endoprosthesis |
US5897567A (en) | 1993-04-29 | 1999-04-27 | Scimed Life Systems, Inc. | Expandable intravascular occlusion material removal devices and methods of use |
JP3655920B2 (en) | 1993-04-29 | 2005-06-02 | シメッド ライフ システムズ インコーポレイテッド | Expandable vascular occlusion removal device |
CA2118886C (en) | 1993-05-07 | 1998-12-08 | Dennis Vigil | Method and apparatus for dilatation of a stenotic vessel |
EP0746236B1 (en) | 1993-10-01 | 2003-08-20 | Boston Scientific Corporation | Improved vena cava filter |
FR2713081B1 (en) | 1993-11-29 | 1996-01-12 | Celsa Lg | Improved blood filter with two series of petal legs. |
US6165210A (en) * | 1994-04-01 | 2000-12-26 | Gore Enterprise Holdings, Inc. | Self-expandable helical intravascular stent and stent-graft |
US5634942A (en) * | 1994-04-21 | 1997-06-03 | B. Braun Celsa | Assembly comprising a blood filter for temporary or definitive use and a device for implanting it |
US5683451A (en) | 1994-06-08 | 1997-11-04 | Cardiovascular Concepts, Inc. | Apparatus and methods for deployment release of intraluminal prostheses |
DE9409484U1 (en) | 1994-06-11 | 1994-08-04 | Naderlinger Eduard | Vena cava thrombus filter |
GB2290236B (en) | 1994-06-16 | 1998-08-05 | Roger Harrington Fox | Vena-cava filter |
US6123715A (en) | 1994-07-08 | 2000-09-26 | Amplatz; Curtis | Method of forming medical devices; intravascular occlusion devices |
EP1695673A3 (en) | 1994-07-08 | 2009-07-08 | ev3 Inc. | Intravascular filtering device |
US5658296A (en) * | 1994-11-21 | 1997-08-19 | Boston Scientific Corporation | Method for making surgical retrieval baskets |
US5709704A (en) * | 1994-11-30 | 1998-01-20 | Boston Scientific Corporation | Blood clot filtering |
US6013093A (en) * | 1995-11-28 | 2000-01-11 | Boston Scientific Corporation | Blood clot filtering |
US5549626A (en) * | 1994-12-23 | 1996-08-27 | New York Society For The Ruptured And Crippled Maintaining The Hospital For Special Surgery | Vena caval filter |
US5593394A (en) | 1995-01-24 | 1997-01-14 | Kanesaka; Nozomu | Shaft for a catheter system |
US6348056B1 (en) * | 1999-08-06 | 2002-02-19 | Scimed Life Systems, Inc. | Medical retrieval device with releasable retrieval basket |
DE19513164A1 (en) * | 1995-04-07 | 1996-10-10 | Bayer Ag | Hydroxy-terminated polycarbonates based on high mol. cyclic dimer diols with and use in prodn. of polyurethanes stable against hydrolysis and oxidn. |
US5795322A (en) | 1995-04-10 | 1998-08-18 | Cordis Corporation | Catheter with filter and thrombus-discharge device |
US5707354A (en) | 1995-04-17 | 1998-01-13 | Cardiovascular Imaging Systems, Inc. | Compliant catheter lumen and methods |
NL1001410C2 (en) | 1995-05-19 | 1996-11-20 | Cordis Europ | Medical device for long-term residence in a body. |
US5645564A (en) * | 1995-05-22 | 1997-07-08 | Regents Of The University Of California | Microfabricated therapeutic actuator mechanisms |
US5681347A (en) * | 1995-05-23 | 1997-10-28 | Boston Scientific Corporation | Vena cava filter delivery system |
US5713853A (en) * | 1995-06-07 | 1998-02-03 | Interventional Innovations Corporation | Methods for treating thrombosis |
US5788707A (en) | 1995-06-07 | 1998-08-04 | Scimed Life Systems, Inc. | Pull back sleeve system with compression resistant inner shaft |
US6280413B1 (en) * | 1995-06-07 | 2001-08-28 | Medtronic Ave, Inc. | Thrombolytic filtration and drug delivery catheter with a self-expanding portion |
US20020193828A1 (en) | 2001-06-14 | 2002-12-19 | Cook Incorporated | Endovascular filter |
US5762631A (en) | 1995-07-14 | 1998-06-09 | Localmed, Inc. | Method and system for reduced friction introduction of coaxial catheters |
US5766203A (en) | 1995-07-20 | 1998-06-16 | Intelliwire, Inc. | Sheath with expandable distal extremity and balloon catheters and stents for use therewith and method |
FR2737653B1 (en) | 1995-08-10 | 1997-09-19 | Braun Celsa Sa | DEFINITIVE FILTER COMPRISING AN ORIFICE FOR THE PASSAGE OF MEDICAL DEVICES AND ITS MANUFACTURING METHOD |
JP3656680B2 (en) | 1995-09-21 | 2005-06-08 | 株式会社リコー | Reversible thermosensitive coloring composition and reversible recording medium using the same |
US6168604B1 (en) * | 1995-10-06 | 2001-01-02 | Metamorphic Surgical Devices, Llc | Guide wire device for removing solid objects from body canals |
US6264663B1 (en) | 1995-10-06 | 2001-07-24 | Metamorphic Surgical Devices, Llc | Device for removing solid objects from body canals, cavities and organs including an invertable basket |
US5779716A (en) * | 1995-10-06 | 1998-07-14 | Metamorphic Surgical Devices, Inc. | Device for removing solid objects from body canals, cavities and organs |
US5769871A (en) | 1995-11-17 | 1998-06-23 | Louisville Laboratories, Inc. | Embolectomy catheter |
US5695519A (en) | 1995-11-30 | 1997-12-09 | American Biomed, Inc. | Percutaneous filter for carotid angioplasty |
US5895398A (en) * | 1996-02-02 | 1999-04-20 | The Regents Of The University Of California | Method of using a clot capture coil |
NL1002423C2 (en) | 1996-02-22 | 1997-08-25 | Cordis Europ | Temporary filter catheter. |
US5935139A (en) * | 1996-05-03 | 1999-08-10 | Boston Scientific Corporation | System for immobilizing or manipulating an object in a tract |
US6096053A (en) * | 1996-05-03 | 2000-08-01 | Scimed Life Systems, Inc. | Medical retrieval basket |
WO1997042879A1 (en) | 1996-05-14 | 1997-11-20 | Embol-X, Inc. | Aortic occluder with associated filter and methods of use during cardiac surgery |
US6652480B1 (en) | 1997-03-06 | 2003-11-25 | Medtronic Ave., Inc. | Methods for reducing distal embolization |
US6270477B1 (en) | 1996-05-20 | 2001-08-07 | Percusurge, Inc. | Catheter for emboli containment |
US6544276B1 (en) | 1996-05-20 | 2003-04-08 | Medtronic Ave. Inc. | Exchange method for emboli containment |
US5834449A (en) | 1996-06-13 | 1998-11-10 | The Research Foundation Of State University Of New York | Treatment of aortic and vascular aneurysms with tetracycline compounds |
NL1003497C2 (en) | 1996-07-03 | 1998-01-07 | Cordis Europ | Catheter with temporary vena-cava filter. |
US5669933A (en) | 1996-07-17 | 1997-09-23 | Nitinol Medical Technologies, Inc. | Removable embolus blood clot filter |
NL1003984C2 (en) | 1996-09-09 | 1998-03-10 | Cordis Europ | Catheter with internal stiffening bridges. |
US5725519A (en) * | 1996-09-30 | 1998-03-10 | Medtronic Instent Israel Ltd. | Stent loading device for a balloon catheter |
US6395017B1 (en) | 1996-11-15 | 2002-05-28 | C. R. Bard, Inc. | Endoprosthesis delivery catheter with sequential stage control |
US6447530B1 (en) | 1996-11-27 | 2002-09-10 | Scimed Life Systems, Inc. | Atraumatic anchoring and disengagement mechanism for permanent implant device |
US5876367A (en) * | 1996-12-05 | 1999-03-02 | Embol-X, Inc. | Cerebral protection during carotid endarterectomy and downstream vascular protection during other surgeries |
FR2758078B1 (en) | 1997-01-03 | 1999-07-16 | Braun Celsa Sa | BLOOD FILTER WITH IMPROVED PERMEABILITY |
WO1998033443A1 (en) * | 1997-02-03 | 1998-08-06 | Angioguard, Inc. | Vascular filter |
US6391044B1 (en) | 1997-02-03 | 2002-05-21 | Angioguard, Inc. | Vascular filter system |
US20020169458A1 (en) | 1997-02-06 | 2002-11-14 | Connors John J. | ICA angioplasty with cerebral protection |
US6295989B1 (en) | 1997-02-06 | 2001-10-02 | Arteria Medical Science, Inc. | ICA angioplasty with cerebral protection |
JP2001512334A (en) | 1997-02-12 | 2001-08-21 | プロリフィックス メディカル,インコーポレイテッド | Equipment for removing material from stents |
US5800457A (en) | 1997-03-05 | 1998-09-01 | Gelbfish; Gary A. | Intravascular filter and associated methodology |
US6152946A (en) * | 1998-03-05 | 2000-11-28 | Scimed Life Systems, Inc. | Distal protection device and method |
US5827324A (en) | 1997-03-06 | 1998-10-27 | Scimed Life Systems, Inc. | Distal protection device |
US6974469B2 (en) | 1997-03-06 | 2005-12-13 | Scimed Life Systems, Inc. | Distal protection device and method |
US6258115B1 (en) | 1997-04-23 | 2001-07-10 | Artemis Medical, Inc. | Bifurcated stent and distal protection system |
US5879697A (en) * | 1997-04-30 | 1999-03-09 | Schneider Usa Inc | Drug-releasing coatings for medical devices |
US5846260A (en) | 1997-05-08 | 1998-12-08 | Embol-X, Inc. | Cannula with a modular filter for filtering embolic material |
US6676682B1 (en) | 1997-05-08 | 2004-01-13 | Scimed Life Systems, Inc. | Percutaneous catheter and guidewire having filter and medical device deployment capabilities |
US6258120B1 (en) | 1997-12-23 | 2001-07-10 | Embol-X, Inc. | Implantable cerebral protection device and methods of use |
US5954745A (en) | 1997-05-16 | 1999-09-21 | Gertler; Jonathan | Catheter-filter set having a compliant seal |
US6059814A (en) | 1997-06-02 | 2000-05-09 | Medtronic Ave., Inc. | Filter for filtering fluid in a bodily passageway |
US5800525A (en) | 1997-06-04 | 1998-09-01 | Vascular Science, Inc. | Blood filter |
US5947995A (en) | 1997-06-06 | 1999-09-07 | Samuels; Shaun Lawrence Wilkie | Method and apparatus for removing blood clots and other objects |
US5848964A (en) | 1997-06-06 | 1998-12-15 | Samuels; Shaun Lawrence Wilkie | Temporary inflatable filter device and method of use |
US6245088B1 (en) | 1997-07-07 | 2001-06-12 | Samuel R. Lowery | Retrievable umbrella sieve and method of use |
US5882239A (en) * | 1997-07-18 | 1999-03-16 | Trichak; Angelique M. | Illuminatable aerodynamic disc or saucer |
US6086577A (en) | 1997-08-13 | 2000-07-11 | Scimed Life Systems, Inc. | Detachable aneurysm neck bridge (III) |
US6048645A (en) * | 1997-08-21 | 2000-04-11 | Valence Technology, Inc. | Method of preparing lithium ion electrochemical cells |
US5911725A (en) * | 1997-08-22 | 1999-06-15 | Boury; Harb N. | Intraluminal retrieval catheter |
US5941896A (en) * | 1997-09-08 | 1999-08-24 | Montefiore Hospital And Medical Center | Filter and method for trapping emboli during endovascular procedures |
FR2768326B1 (en) | 1997-09-18 | 1999-10-22 | De Bearn Olivier Despalle | TEMPORARY BLOOD FILTER |
US6371935B1 (en) | 1999-01-22 | 2002-04-16 | Cardeon Corporation | Aortic catheter with flow divider and methods for preventing cerebral embolization |
US6361545B1 (en) * | 1997-09-26 | 2002-03-26 | Cardeon Corporation | Perfusion filter catheter |
US6395014B1 (en) | 1997-09-26 | 2002-05-28 | John A. Macoviak | Cerebral embolic protection assembly and associated methods |
JPH11100112A (en) * | 1997-09-27 | 1999-04-13 | Ricoh Co Ltd | Belt device |
US6066149A (en) | 1997-09-30 | 2000-05-23 | Target Therapeutics, Inc. | Mechanical clot treatment device with distal filter |
US6099534A (en) * | 1997-10-01 | 2000-08-08 | Scimed Life Systems, Inc. | Releasable basket |
US6461370B1 (en) | 1998-11-03 | 2002-10-08 | C. R. Bard, Inc. | Temporary vascular filter guide wire |
US7491216B2 (en) | 1997-11-07 | 2009-02-17 | Salviac Limited | Filter element with retractable guidewire tip |
WO2000067667A1 (en) | 1999-05-07 | 2000-11-16 | Salviac Limited | A filter element with retractable guidewire tip |
EP1030603B1 (en) | 1997-11-12 | 2008-08-13 | Genesis Technologies LLC. | Biological passageway occlusion removal |
US6254563B1 (en) | 1997-12-15 | 2001-07-03 | Cardeon Corporation | Perfusion shunt apparatus and method |
JP2002502626A (en) * | 1998-02-10 | 2002-01-29 | アーテミス・メディカル・インコーポレイテッド | Supplementary device and method of using the same |
DE19808196C2 (en) * | 1998-02-27 | 2003-06-05 | Eurocopter Deutschland | Rotor blade for a helicopter |
EP0939142A1 (en) * | 1998-02-27 | 1999-09-01 | Ticona GmbH | Thermal spray powder incorporating an oxidised polyarylene sulfide |
US6206868B1 (en) * | 1998-03-13 | 2001-03-27 | Arteria Medical Science, Inc. | Protective device and method against embolization during treatment of carotid artery disease |
US6423032B2 (en) | 1998-03-13 | 2002-07-23 | Arteria Medical Science, Inc. | Apparatus and methods for reducing embolization during treatment of carotid artery disease |
DE69933657T2 (en) | 1998-04-02 | 2007-08-23 | Salviac Ltd. | IMPLANTATION CATHETER |
IE980241A1 (en) | 1998-04-02 | 1999-10-20 | Salviac Ltd | Delivery catheter with split sheath |
CA2294484C (en) | 1998-04-23 | 2004-03-30 | Scimed Life Systems, Inc. | Atraumatic medical retrieval device |
US6450989B2 (en) | 1998-04-27 | 2002-09-17 | Artemis Medical, Inc. | Dilating and support apparatus with disease inhibitors and methods for use |
US6007557A (en) | 1998-04-29 | 1999-12-28 | Embol-X, Inc. | Adjustable blood filtration system |
US6511492B1 (en) * | 1998-05-01 | 2003-01-28 | Microvention, Inc. | Embolectomy catheters and methods for treating stroke and other small vessel thromboembolic disorders |
US5984947A (en) | 1998-05-04 | 1999-11-16 | Scimed Life Systems, Inc. | Removable thrombus filter |
DE19820223C1 (en) * | 1998-05-06 | 1999-11-04 | Siemens Ag | Variable doping epitaxial layer manufacturing method |
AU4055799A (en) * | 1998-05-13 | 1999-11-29 | Salviac Limited | A surgical shunt |
US6908474B2 (en) | 1998-05-13 | 2005-06-21 | Gore Enterprise Holdings, Inc. | Apparatus and methods for reducing embolization during treatment of carotid artery disease |
US6132458A (en) | 1998-05-15 | 2000-10-17 | American Medical Systems, Inc. | Method and device for loading a stent |
EP1082072B8 (en) * | 1998-06-04 | 2014-03-05 | New York University | Endovascular thin film devices for treating and preventing stroke |
IL124958A0 (en) | 1998-06-16 | 1999-01-26 | Yodfat Ofer | Implantable blood filtering device |
US5928261A (en) * | 1998-06-29 | 1999-07-27 | Ruiz; Carlos E. | Removable vascular filter, catheter system and methods of use |
US6241746B1 (en) | 1998-06-29 | 2001-06-05 | Cordis Corporation | Vascular filter convertible to a stent and method |
NL1009551C2 (en) * | 1998-07-03 | 2000-01-07 | Cordis Europ | Vena cava filter with improvements for controlled ejection. |
US6306163B1 (en) | 1998-08-04 | 2001-10-23 | Advanced Cardiovascular Systems, Inc. | Assembly for collecting emboli and method of use |
AU5333599A (en) | 1998-08-06 | 2000-02-28 | Cardeon Corporation | Aortic catheter with porous aortic arch balloon and methods for selective aorticperfusion |
US6093173A (en) | 1998-09-09 | 2000-07-25 | Embol-X, Inc. | Introducer/dilator with balloon protection and methods of use |
US6342062B1 (en) * | 1998-09-24 | 2002-01-29 | Scimed Life Systems, Inc. | Retrieval devices for vena cava filter |
US6007558A (en) * | 1998-09-25 | 1999-12-28 | Nitinol Medical Technologies, Inc. | Removable embolus blood clot filter |
US6096027A (en) * | 1998-09-30 | 2000-08-01 | Impra, Inc., A Subsidiary Of C.R. Bard, Inc. | Bag enclosed stent loading apparatus |
US6051014A (en) * | 1998-10-13 | 2000-04-18 | Embol-X, Inc. | Percutaneous filtration catheter for valve repair surgery and methods of use |
US7044134B2 (en) | 1999-11-08 | 2006-05-16 | Ev3 Sunnyvale, Inc | Method of implanting a device in the left atrial appendage |
US6083239A (en) | 1998-11-24 | 2000-07-04 | Embol-X, Inc. | Compliant framework and methods of use |
US6156200A (en) | 1998-12-08 | 2000-12-05 | Usf Filtration & Separations Group, Inc. | Gas-scrubbed hollow fiber membrane module |
US6652554B1 (en) | 1999-01-04 | 2003-11-25 | Mark H. Wholey | Instrument for thromboembolic protection |
US7018401B1 (en) * | 1999-02-01 | 2006-03-28 | Board Of Regents, The University Of Texas System | Woven intravascular devices and methods for making the same and apparatus for delivery of the same |
US6991641B2 (en) | 1999-02-12 | 2006-01-31 | Cordis Corporation | Low profile vascular filter system |
US20020138094A1 (en) | 1999-02-12 | 2002-09-26 | Thomas Borillo | Vascular filter system |
US6171327B1 (en) | 1999-02-24 | 2001-01-09 | Scimed Life Systems, Inc. | Intravascular filter and method |
US6355051B1 (en) * | 1999-03-04 | 2002-03-12 | Bioguide Consulting, Inc. | Guidewire filter device |
US20020169474A1 (en) | 1999-03-08 | 2002-11-14 | Microvena Corporation | Minimally invasive medical device deployment and retrieval system |
US6353051B1 (en) * | 1999-03-10 | 2002-03-05 | E. I. Du Pont De Nemours And Company | Top coating for synthetic leathers |
US6632236B2 (en) | 1999-03-12 | 2003-10-14 | Arteria Medical Science, Inc. | Catheter having radially expandable main body |
US6245012B1 (en) | 1999-03-19 | 2001-06-12 | Nmt Medical, Inc. | Free standing filter |
US6231589B1 (en) | 1999-03-22 | 2001-05-15 | Microvena Corporation | Body vessel filter |
US6893450B2 (en) | 1999-03-26 | 2005-05-17 | Cook Urological Incorporated | Minimally-invasive medical retrieval device |
US6277139B1 (en) | 1999-04-01 | 2001-08-21 | Scion Cardio-Vascular, Inc. | Vascular protection and embolic material retriever |
US6277138B1 (en) | 1999-08-17 | 2001-08-21 | Scion Cardio-Vascular, Inc. | Filter for embolic material mounted on expandable frame |
US7150756B2 (en) | 1999-04-01 | 2006-12-19 | Scion Cardio-Vascular, Inc | Radiopaque locking frame, filter and flexible end |
US6537296B2 (en) | 1999-04-01 | 2003-03-25 | Scion Cardio-Vascular, Inc. | Locking frame, filter and deployment system |
US6146370A (en) * | 1999-04-07 | 2000-11-14 | Coaxia, Inc. | Devices and methods for preventing distal embolization from the internal carotid artery using flow reversal by partial occlusion of the external carotid artery |
US6267776B1 (en) * | 1999-05-03 | 2001-07-31 | O'connell Paul T. | Vena cava filter and method for treating pulmonary embolism |
US6918921B2 (en) | 1999-05-07 | 2005-07-19 | Salviac Limited | Support frame for an embolic protection device |
US20020058911A1 (en) * | 1999-05-07 | 2002-05-16 | Paul Gilson | Support frame for an embolic protection device |
WO2000067665A1 (en) | 1999-05-07 | 2000-11-16 | Salviac Limited | Support frame for embolic protection device |
US7014647B2 (en) | 1999-05-07 | 2006-03-21 | Salviac Limited | Support frame for an embolic protection device |
US6964672B2 (en) | 1999-05-07 | 2005-11-15 | Salviac Limited | Support frame for an embolic protection device |
DE20080298U1 (en) | 1999-05-07 | 2001-12-20 | Salviac Ltd | Embolic protection device |
WO2000067666A1 (en) | 1999-05-07 | 2000-11-16 | Salviac Limited | Improved filter element for embolic protection device |
US6585756B1 (en) | 1999-05-14 | 2003-07-01 | Ernst P. Strecker | Implantable lumen prosthesis |
US6176849B1 (en) * | 1999-05-21 | 2001-01-23 | Scimed Life Systems, Inc. | Hydrophilic lubricity coating for medical devices comprising a hydrophobic top coat |
US6068645A (en) | 1999-06-07 | 2000-05-30 | Tu; Hosheng | Filter system and methods for removing blood clots and biological material |
US6458139B1 (en) | 1999-06-21 | 2002-10-01 | Endovascular Technologies, Inc. | Filter/emboli extractor for use in variable sized blood vessels |
US20030150821A1 (en) | 1999-07-16 | 2003-08-14 | Bates Mark C. | Emboli filtration system and methods of use |
US6179861B1 (en) | 1999-07-30 | 2001-01-30 | Incept Llc | Vascular device having one or more articulation regions and methods of use |
US7229463B2 (en) | 1999-07-30 | 2007-06-12 | Angioguard, Inc. | Vascular filter system for cardiopulmonary bypass |
US6589263B1 (en) | 1999-07-30 | 2003-07-08 | Incept Llc | Vascular device having one or more articulation regions and methods of use |
US7306618B2 (en) | 1999-07-30 | 2007-12-11 | Incept Llc | Vascular device for emboli and thrombi removal and methods of use |
US6620182B1 (en) | 1999-07-30 | 2003-09-16 | Incept Llc | Vascular filter having articulation region and methods of use in the ascending aorta |
US6544279B1 (en) | 2000-08-09 | 2003-04-08 | Incept, Llc | Vascular device for emboli, thrombus and foreign body removal and methods of use |
US6371970B1 (en) | 1999-07-30 | 2002-04-16 | Incept Llc | Vascular filter having articulation region and methods of use in the ascending aorta |
WO2001009213A1 (en) * | 1999-07-30 | 2001-02-08 | Asahi Kasei Kabushiki Kaisha | Polyacetal block copolymer |
US7229462B2 (en) | 1999-07-30 | 2007-06-12 | Angioguard, Inc. | Vascular filter system for carotid endarterectomy |
US6616679B1 (en) | 1999-07-30 | 2003-09-09 | Incept, Llc | Rapid exchange vascular device for emboli and thrombus removal and methods of use |
US20020026211A1 (en) | 1999-12-23 | 2002-02-28 | Farhad Khosravi | Vascular device having emboli and thrombus removal element and methods of use |
US20020022858A1 (en) | 1999-07-30 | 2002-02-21 | Demond Jackson F. | Vascular device for emboli removal having suspension strut and methods of use |
US6530939B1 (en) * | 1999-07-30 | 2003-03-11 | Incept, Llc | Vascular device having articulation region and methods of use |
US6214026B1 (en) | 1999-07-30 | 2001-04-10 | Incept Llc | Delivery system for a vascular device with articulation region |
US6203561B1 (en) | 1999-07-30 | 2001-03-20 | Incept Llc | Integrated vascular device having thrombectomy element and vascular filter and methods of use |
US6142987A (en) | 1999-08-03 | 2000-11-07 | Scimed Life Systems, Inc. | Guided filter with support wire and methods of use |
US6346116B1 (en) | 1999-08-03 | 2002-02-12 | Medtronic Ave, Inc. | Distal protection device |
US6245087B1 (en) | 1999-08-03 | 2001-06-12 | Embol-X, Inc. | Variable expansion frame system for deploying medical devices and methods of use |
US6235044B1 (en) * | 1999-08-04 | 2001-05-22 | Scimed Life Systems, Inc. | Percutaneous catheter and guidewire for filtering during ablation of mycardial or vascular tissue |
US6168579B1 (en) | 1999-08-04 | 2001-01-02 | Scimed Life Systems, Inc. | Filter flush system and methods of use |
US6273901B1 (en) | 1999-08-10 | 2001-08-14 | Scimed Life Systems, Inc. | Thrombosis filter having a surface treatment |
EP1202676B1 (en) | 1999-08-12 | 2010-09-22 | Salviac Limited | Retrieval device |
US6251122B1 (en) | 1999-09-02 | 2001-06-26 | Scimed Life Systems, Inc. | Intravascular filter retrieval device and method |
US6146404A (en) | 1999-09-03 | 2000-11-14 | Scimed Life Systems, Inc. | Removable thrombus filter |
DE29916162U1 (en) * | 1999-09-14 | 2000-01-13 | Cormedics Gmbh | Vascular filter system |
US6939361B1 (en) * | 1999-09-22 | 2005-09-06 | Nmt Medical, Inc. | Guidewire for a free standing intervascular device having an integral stop mechanism |
US6375670B1 (en) | 1999-10-07 | 2002-04-23 | Prodesco, Inc. | Intraluminal filter |
US6364895B1 (en) | 1999-10-07 | 2002-04-02 | Prodesco, Inc. | Intraluminal filter |
WO2001026584A1 (en) * | 1999-10-14 | 2001-04-19 | United Stenting, Inc. | Stents with multilayered struts |
US6340364B2 (en) * | 1999-10-22 | 2002-01-22 | Nozomu Kanesaka | Vascular filtering device |
US6264672B1 (en) * | 1999-10-25 | 2001-07-24 | Biopsy Sciences, Llc | Emboli capturing device |
US6425909B1 (en) | 1999-11-04 | 2002-07-30 | Concentric Medical, Inc. | Methods and devices for filtering fluid flow through a body structure |
US6171328B1 (en) * | 1999-11-09 | 2001-01-09 | Embol-X, Inc. | Intravascular catheter filter with interlocking petal design and methods of use |
US6371971B1 (en) | 1999-11-15 | 2002-04-16 | Scimed Life Systems, Inc. | Guidewire filter and methods of use |
AU1623201A (en) | 1999-11-18 | 2001-05-30 | Advanced Cardiovascular Systems Inc. | Embolic protection system and method including an emboli-capturing catheter |
US6623450B1 (en) | 1999-12-17 | 2003-09-23 | Advanced Cardiovascular Systems, Inc. | System for blocking the passage of emboli through a body vessel |
US6443979B1 (en) | 1999-12-20 | 2002-09-03 | Advanced Cardiovascular Systems, Inc. | Expandable stent delivery sheath and method of use |
US6443971B1 (en) | 1999-12-21 | 2002-09-03 | Advanced Cardiovascular Systems, Inc. | System for, and method of, blocking the passage of emboli through a vessel |
US6402771B1 (en) | 1999-12-23 | 2002-06-11 | Guidant Endovascular Solutions | Snare |
US6660021B1 (en) | 1999-12-23 | 2003-12-09 | Advanced Cardiovascular Systems, Inc. | Intravascular device and system |
US6575997B1 (en) | 1999-12-23 | 2003-06-10 | Endovascular Technologies, Inc. | Embolic basket |
US6406471B1 (en) | 1999-12-28 | 2002-06-18 | Embol-X, Inc. | Arterial filter with aspiration and methods of use |
US6290710B1 (en) | 1999-12-29 | 2001-09-18 | Advanced Cardiovascular Systems, Inc. | Embolic protection device |
US6645220B1 (en) | 1999-12-30 | 2003-11-11 | Advanced Cardiovascular Systems, Inc. | Embolic protection system and method including and embolic-capturing filter |
US6383206B1 (en) | 1999-12-30 | 2002-05-07 | Advanced Cardiovascular Systems, Inc. | Embolic protection system and method including filtering elements |
US6511503B1 (en) * | 1999-12-30 | 2003-01-28 | Advanced Cardiovascular Systems, Inc. | Catheter apparatus for treating occluded vessels and filtering embolic debris and method of use |
US6540722B1 (en) | 1999-12-30 | 2003-04-01 | Advanced Cardiovascular Systems, Inc. | Embolic protection devices |
US6361546B1 (en) * | 2000-01-13 | 2002-03-26 | Endotex Interventional Systems, Inc. | Deployable recoverable vascular filter and methods for use |
US6342063B1 (en) | 2000-01-26 | 2002-01-29 | Scimed Life Systems, Inc. | Device and method for selectively removing a thrombus filter |
US6692513B2 (en) | 2000-06-30 | 2004-02-17 | Viacor, Inc. | Intravascular filter with debris entrapment mechanism |
DE60128207T2 (en) | 2000-02-01 | 2008-01-10 | Harold D. Minneapolis Kletschka | ANGIOPLASTIEVORRICHTUNNG |
US6517550B1 (en) * | 2000-02-02 | 2003-02-11 | Board Of Regents, The University Of Texas System | Foreign body retrieval device |
US6540767B1 (en) | 2000-02-08 | 2003-04-01 | Scimed Life Systems, Inc. | Recoilable thrombosis filtering device and method |
US6540768B1 (en) | 2000-02-09 | 2003-04-01 | Cordis Corporation | Vascular filter system |
ATE353604T1 (en) | 2000-03-10 | 2007-03-15 | Michael Anthony T Don | FILTER EXPANSION DEVICE FOR PREVENTING VASCULAR EMBOLY |
US6695865B2 (en) | 2000-03-20 | 2004-02-24 | Advanced Bio Prosthetic Surfaces, Ltd. | Embolic protection device |
US6485500B1 (en) | 2000-03-21 | 2002-11-26 | Advanced Cardiovascular Systems, Inc. | Emboli protection system |
US6632241B1 (en) | 2000-03-22 | 2003-10-14 | Endovascular Technologies, Inc. | Self-expanding, pseudo-braided intravascular device |
US6514273B1 (en) * | 2000-03-22 | 2003-02-04 | Endovascular Technologies, Inc. | Device for removal of thrombus through physiological adhesion |
JP3849397B2 (en) | 2000-03-23 | 2006-11-22 | ニプロ株式会社 | Venous filter |
GB2369575A (en) * | 2000-04-20 | 2002-06-05 | Salviac Ltd | An embolic protection system |
EP1149566A3 (en) | 2000-04-24 | 2003-08-06 | Cordis Corporation | Vascular filter systems with guidewire and capture mechanism |
US6592616B1 (en) | 2000-04-28 | 2003-07-15 | Advanced Cardiovascular Systems, Inc. | System and device for minimizing embolic risk during an interventional procedure |
US6520978B1 (en) * | 2000-05-15 | 2003-02-18 | Intratherapeutics, Inc. | Emboli filter |
US6602271B2 (en) | 2000-05-24 | 2003-08-05 | Medtronic Ave, Inc. | Collapsible blood filter with optimal braid geometry |
US6939362B2 (en) | 2001-11-27 | 2005-09-06 | Advanced Cardiovascular Systems, Inc. | Offset proximal cage for embolic filtering devices |
US6565591B2 (en) | 2000-06-23 | 2003-05-20 | Salviac Limited | Medical device |
US6824545B2 (en) * | 2000-06-29 | 2004-11-30 | Concentric Medical, Inc. | Systems, methods and devices for removing obstructions from a blood vessel |
US6663650B2 (en) | 2000-06-29 | 2003-12-16 | Concentric Medical, Inc. | Systems, methods and devices for removing obstructions from a blood vessel |
US6482222B1 (en) | 2000-07-11 | 2002-11-19 | Rafael Medical Technologies Inc. | Intravascular filter |
EP1172073A1 (en) | 2000-07-13 | 2002-01-16 | Cordis Corporation | Vascular filter system with guidewire and capture mechanism |
US6575995B1 (en) | 2000-07-14 | 2003-06-10 | Advanced Cardiovascular Systems, Inc. | Expandable cage embolic material filter system and method |
US6656202B2 (en) | 2000-07-14 | 2003-12-02 | Advanced Cardiovascular Systems, Inc. | Embolic protection systems |
KR20020031197A (en) | 2000-07-21 | 2002-04-26 | 이데이 노부유끼 | Recording apparatus, reproducing apparatus and recording/reproducing system |
US6740061B1 (en) | 2000-07-28 | 2004-05-25 | Ev3 Inc. | Distal protection device |
US6527746B1 (en) * | 2000-08-03 | 2003-03-04 | Ev3, Inc. | Back-loading catheter |
US7147649B2 (en) | 2000-08-04 | 2006-12-12 | Duke University | Temporary vascular filters |
US6394978B1 (en) | 2000-08-09 | 2002-05-28 | Advanced Cardiovascular Systems, Inc. | Interventional procedure expandable balloon expansion enabling system and method |
US6485501B1 (en) | 2000-08-11 | 2002-11-26 | Cordis Corporation | Vascular filter system with guidewire and capture mechanism |
JP2004506469A (en) | 2000-08-18 | 2004-03-04 | アトリテック, インコーポレイテッド | Expandable implantable device for filtering blood flow from the atrial appendage |
US6558405B1 (en) | 2000-08-29 | 2003-05-06 | Advanced Cardiovascular Systems, Inc. | Embolic filter |
US6511496B1 (en) * | 2000-09-12 | 2003-01-28 | Advanced Cardiovascular Systems, Inc. | Embolic protection device for use in interventional procedures |
US6616681B2 (en) | 2000-10-05 | 2003-09-09 | Scimed Life Systems, Inc. | Filter delivery and retrieval device |
WO2002030271A2 (en) | 2000-10-12 | 2002-04-18 | Medtronic Ave, Inc. | Methods and apparatus for protecting the proximal end of a medical device |
US6537294B1 (en) * | 2000-10-17 | 2003-03-25 | Advanced Cardiovascular Systems, Inc. | Delivery systems for embolic filter devices |
JP2004517652A (en) | 2000-10-18 | 2004-06-17 | エヌエムティー メディカル インコーポレイテッド | Interlock installation / separation mechanism over wire |
US20020082525A1 (en) | 2000-10-18 | 2002-06-27 | Oslund John C. | Rapid exchange delivery catheter |
US6582447B1 (en) | 2000-10-20 | 2003-06-24 | Angiodynamics, Inc. | Convertible blood clot filter |
US6589265B1 (en) | 2000-10-31 | 2003-07-08 | Endovascular Technologies, Inc. | Intrasaccular embolic device |
US6616680B1 (en) | 2000-11-01 | 2003-09-09 | Joseph M. Thielen | Distal protection and delivery system and method |
US6602272B2 (en) | 2000-11-02 | 2003-08-05 | Advanced Cardiovascular Systems, Inc. | Devices configured from heat shaped, strain hardened nickel-titanium |
US6893451B2 (en) | 2000-11-09 | 2005-05-17 | Advanced Cardiovascular Systems, Inc. | Apparatus for capturing objects beyond an operative site utilizing a capture device delivered on a medical guide wire |
US6506203B1 (en) * | 2000-12-19 | 2003-01-14 | Advanced Cardiovascular Systems, Inc. | Low profile sheathless embolic protection system |
US6582448B1 (en) | 2000-12-21 | 2003-06-24 | Advanced Cardiovascular Systems, Inc. | Vessel occlusion device for embolic protection system |
US7169165B2 (en) | 2001-01-16 | 2007-01-30 | Boston Scientific Scimed, Inc. | Rapid exchange sheath for deployment of medical devices and methods of use |
US6663651B2 (en) | 2001-01-16 | 2003-12-16 | Incept Llc | Systems and methods for vascular filter retrieval |
US6936059B2 (en) | 2001-01-16 | 2005-08-30 | Scimed Life Systems, Inc. | Endovascular guidewire filter and methods of use |
US6610077B1 (en) | 2001-01-23 | 2003-08-26 | Endovascular Technologies, Inc. | Expandable emboli filter and thrombectomy device |
US20020128680A1 (en) | 2001-01-25 | 2002-09-12 | Pavlovic Jennifer L. | Distal protection device with electrospun polymer fiber matrix |
US6689151B2 (en) | 2001-01-25 | 2004-02-10 | Scimed Life Systems, Inc. | Variable wall thickness for delivery sheath housing |
US6979343B2 (en) | 2001-02-14 | 2005-12-27 | Ev3 Inc. | Rolled tip recovery catheter |
US6840950B2 (en) | 2001-02-20 | 2005-01-11 | Scimed Life Systems, Inc. | Low profile emboli capture device |
US6506205B2 (en) * | 2001-02-20 | 2003-01-14 | Mark Goldberg | Blood clot filtering system |
US6569184B2 (en) | 2001-02-27 | 2003-05-27 | Advanced Cardiovascular Systems, Inc. | Recovery system for retrieving an embolic protection device |
US6974468B2 (en) | 2001-02-28 | 2005-12-13 | Scimed Life Systems, Inc. | Filter retrieval catheter |
US20020123755A1 (en) | 2001-03-01 | 2002-09-05 | Scimed Life Systems, Inc. | Embolic protection filter delivery sheath |
US7226464B2 (en) | 2001-03-01 | 2007-06-05 | Scimed Life Systems, Inc. | Intravascular filter retrieval device having an actuatable dilator tip |
US6562058B2 (en) | 2001-03-02 | 2003-05-13 | Jacques Seguin | Intravascular filter system |
US6537295B2 (en) * | 2001-03-06 | 2003-03-25 | Scimed Life Systems, Inc. | Wire and lock mechanism |
US20020128679A1 (en) | 2001-03-08 | 2002-09-12 | Embol-X, Inc. | Cerebral protection during carotid endarterectomy and methods of use |
CA2441119A1 (en) * | 2001-03-08 | 2002-09-19 | Atritech, Inc. | Atrial filter implants |
US7214237B2 (en) | 2001-03-12 | 2007-05-08 | Don Michael T Anthony | Vascular filter with improved strength and flexibility |
US8298160B2 (en) | 2001-03-16 | 2012-10-30 | Ev3 Inc. | Wire convertible from over-the-wire length to rapid exchange length |
US6602269B2 (en) | 2001-03-30 | 2003-08-05 | Scimed Life Systems | Embolic devices capable of in-situ reinforcement |
US20020161395A1 (en) | 2001-04-03 | 2002-10-31 | Nareak Douk | Guide wire apparatus for prevention of distal atheroembolization |
US6706055B2 (en) | 2001-04-03 | 2004-03-16 | Medtronic Ave Inc. | Guidewire apparatus for temporary distal embolic protection |
US6911036B2 (en) | 2001-04-03 | 2005-06-28 | Medtronic Vascular, Inc. | Guidewire apparatus for temporary distal embolic protection |
US7044958B2 (en) | 2001-04-03 | 2006-05-16 | Medtronic Vascular, Inc. | Temporary device for capturing embolic material |
US6428559B1 (en) | 2001-04-03 | 2002-08-06 | Cordis Corporation | Removable, variable-diameter vascular filter system |
US6436121B1 (en) | 2001-04-30 | 2002-08-20 | Paul H. Blom | Removable blood filter |
US6746469B2 (en) | 2001-04-30 | 2004-06-08 | Advanced Cardiovascular Systems, Inc. | Balloon actuated apparatus having multiple embolic filters, and method of use |
US6645223B2 (en) | 2001-04-30 | 2003-11-11 | Advanced Cardiovascular Systems, Inc. | Deployment and recovery control systems for embolic protection devices |
US6635070B2 (en) | 2001-05-21 | 2003-10-21 | Bacchus Vascular, Inc. | Apparatus and methods for capturing particulate material within blood vessels |
US20020183783A1 (en) | 2001-06-04 | 2002-12-05 | Shadduck John H. | Guidewire for capturing emboli in endovascular interventions |
US20020188314A1 (en) * | 2001-06-07 | 2002-12-12 | Microvena Corporation | Radiopaque distal embolic protection device |
US6596011B2 (en) | 2001-06-12 | 2003-07-22 | Cordis Corporation | Emboli extraction catheter and vascular filter system |
US6551341B2 (en) | 2001-06-14 | 2003-04-22 | Advanced Cardiovascular Systems, Inc. | Devices configured from strain hardened Ni Ti tubing |
US6783538B2 (en) | 2001-06-18 | 2004-08-31 | Rex Medical, L.P | Removable vein filter |
US6793665B2 (en) | 2001-06-18 | 2004-09-21 | Rex Medical, L.P. | Multiple access vein filter |
US6623506B2 (en) | 2001-06-18 | 2003-09-23 | Rex Medical, L.P | Vein filter |
US7780693B2 (en) * | 2001-06-27 | 2010-08-24 | Salviac Limited | Catheter |
US20030125764A1 (en) | 2001-06-27 | 2003-07-03 | Eamon Brady | Catheter |
US7678128B2 (en) * | 2001-06-29 | 2010-03-16 | Advanced Cardiovascular Systems, Inc. | Delivery and recovery sheaths for medical devices |
US6599307B1 (en) | 2001-06-29 | 2003-07-29 | Advanced Cardiovascular Systems, Inc. | Filter device for embolic protection systems |
US6575996B1 (en) | 2001-06-29 | 2003-06-10 | Advanced Cardiovascular Systems, Inc. | Filter device for embolic protection system |
US7338510B2 (en) * | 2001-06-29 | 2008-03-04 | Advanced Cardiovascular Systems, Inc. | Variable thickness embolic filtering devices and method of manufacturing the same |
US6951570B2 (en) * | 2001-07-02 | 2005-10-04 | Rubicon Medical, Inc. | Methods, systems, and devices for deploying a filter from a filter device |
US6997939B2 (en) * | 2001-07-02 | 2006-02-14 | Rubicon Medical, Inc. | Methods, systems, and devices for deploying an embolic protection filter |
US6878153B2 (en) * | 2001-07-02 | 2005-04-12 | Rubicon Medical, Inc. | Methods, systems, and devices for providing embolic protection and removing embolic material |
US6962598B2 (en) * | 2001-07-02 | 2005-11-08 | Rubicon Medical, Inc. | Methods, systems, and devices for providing embolic protection |
EP1277448B1 (en) * | 2001-07-13 | 2006-06-07 | B. Braun Medical SAS | System of vascular protection and angioplasty device |
US6656203B2 (en) * | 2001-07-18 | 2003-12-02 | Cordis Corporation | Integral vascular filter system |
US20030023263A1 (en) * | 2001-07-24 | 2003-01-30 | Incept Llc | Apparatus and methods for aspirating emboli |
US6533800B1 (en) * | 2001-07-25 | 2003-03-18 | Coaxia, Inc. | Devices and methods for preventing distal embolization using flow reversal in arteries having collateral blood flow |
US20030032941A1 (en) * | 2001-08-13 | 2003-02-13 | Boyle William J. | Convertible delivery systems for medical devices |
US6551342B1 (en) | 2001-08-24 | 2003-04-22 | Endovascular Technologies, Inc. | Embolic filter |
US6652557B1 (en) | 2001-08-29 | 2003-11-25 | Macdonald Kenneth A. | Mechanism for capturing debris generated during vascular procedures |
US6638294B1 (en) | 2001-08-30 | 2003-10-28 | Advanced Cardiovascular Systems, Inc. | Self furling umbrella frame for carotid filter |
US6592606B2 (en) | 2001-08-31 | 2003-07-15 | Advanced Cardiovascular Systems, Inc. | Hinged short cage for an embolic protection device |
US7097651B2 (en) * | 2001-09-06 | 2006-08-29 | Advanced Cardiovascular Systems, Inc. | Embolic protection basket |
US6616682B2 (en) | 2001-09-19 | 2003-09-09 | Jomed Gmbh | Methods and apparatus for distal protection during a medical procedure |
JP2003098897A (en) | 2001-09-25 | 2003-04-04 | Canon Inc | Heating device and image formation device |
US20030060843A1 (en) * | 2001-09-27 | 2003-03-27 | Don Boucher | Vascular filter system with encapsulated filter |
US8262689B2 (en) | 2001-09-28 | 2012-09-11 | Advanced Cardiovascular Systems, Inc. | Embolic filtering devices |
US6755847B2 (en) | 2001-10-05 | 2004-06-29 | Scimed Life Systems, Inc. | Emboli capturing device and method of manufacture therefor |
US20030069597A1 (en) | 2001-10-10 | 2003-04-10 | Scimed Life Systems, Inc. | Loading tool |
US20030078614A1 (en) | 2001-10-18 | 2003-04-24 | Amr Salahieh | Vascular embolic filter devices and methods of use therefor |
US6887257B2 (en) | 2001-10-19 | 2005-05-03 | Incept Llc | Vascular embolic filter exchange devices and methods of use thereof |
US20030109824A1 (en) | 2001-11-07 | 2003-06-12 | Microvena Corporation | Distal protection device with local drug delivery to maintain patency |
AU2002364514B2 (en) | 2001-11-29 | 2008-12-18 | Cook Medical Technologies Llc | Medical device delivery system |
US6890340B2 (en) | 2001-11-29 | 2005-05-10 | Medtronic Vascular, Inc. | Apparatus for temporary intraluminal protection |
US6837898B2 (en) | 2001-11-30 | 2005-01-04 | Advanced Cardiovascular Systems, Inc. | Intraluminal delivery system for an attachable treatment device |
ES2399091T3 (en) | 2001-12-05 | 2013-03-25 | Keystone Heart Ltd. | Endovascular device for entrapment of particulate matter and method of use |
US7153320B2 (en) | 2001-12-13 | 2006-12-26 | Scimed Life Systems, Inc. | Hydraulic controlled retractable tip filter retrieval catheter |
US6793666B2 (en) | 2001-12-18 | 2004-09-21 | Scimed Life Systems, Inc. | Distal protection mechanically attached filter cartridge |
US7241304B2 (en) | 2001-12-21 | 2007-07-10 | Advanced Cardiovascular Systems, Inc. | Flexible and conformable embolic filtering devices |
WO2003055413A2 (en) | 2001-12-21 | 2003-07-10 | Salviac Limited | A support frame for an embolic protection device |
US6958074B2 (en) | 2002-01-07 | 2005-10-25 | Cordis Corporation | Releasable and retrievable vascular filter system |
US8647359B2 (en) | 2002-01-10 | 2014-02-11 | Boston Scientific Scimed, Inc. | Distal protection filter |
US6932830B2 (en) | 2002-01-10 | 2005-08-23 | Scimed Life Systems, Inc. | Disc shaped filter |
US20030135162A1 (en) | 2002-01-17 | 2003-07-17 | Scimed Life Systems, Inc. | Delivery and retrieval manifold for a distal protection filter |
JP4328209B2 (en) | 2002-01-25 | 2009-09-09 | アトリテック, インコーポレイテッド | Atrial appendage blood filtration system |
US20030144686A1 (en) | 2002-01-30 | 2003-07-31 | Embol-X, Inc. | Distal filtration devices and methods of use during aortic procedures |
US7344549B2 (en) | 2002-01-31 | 2008-03-18 | Advanced Cardiovascular Systems, Inc. | Expandable cages for embolic filtering devices |
US6997938B2 (en) | 2002-02-12 | 2006-02-14 | Scimed Life Systems, Inc. | Embolic protection device |
US20030158574A1 (en) | 2002-02-15 | 2003-08-21 | Esch Brady D. | Flow-through aortic flow divider for cerebral and coronary embolic protection |
US7118539B2 (en) | 2002-02-26 | 2006-10-10 | Scimed Life Systems, Inc. | Articulating guide wire for embolic protection and methods of use |
EP1482861B1 (en) | 2002-03-05 | 2007-08-08 | Salviac Limited | An embolic protection system |
US7063707B2 (en) * | 2002-03-06 | 2006-06-20 | Scimed Life Systems, Inc. | Medical retrieval device |
US6773448B2 (en) | 2002-03-08 | 2004-08-10 | Ev3 Inc. | Distal protection devices having controllable wire motion |
US7192434B2 (en) | 2002-03-08 | 2007-03-20 | Ev3 Inc. | Vascular protection devices and methods of use |
US20030176884A1 (en) | 2002-03-12 | 2003-09-18 | Marwane Berrada | Everted filter device |
US20030176886A1 (en) | 2002-03-12 | 2003-09-18 | Wholey Mark H. | Vascular catheter with expanded distal tip for receiving a thromboembolic protection device and method of use |
US7029440B2 (en) | 2002-03-13 | 2006-04-18 | Scimed Life Systems, Inc. | Distal protection filter and method of manufacture |
US20030187495A1 (en) | 2002-04-01 | 2003-10-02 | Cully Edward H. | Endoluminal devices, embolic filters, methods of manufacture and use |
US20030191493A1 (en) | 2002-04-05 | 2003-10-09 | Epstein Gordon H. | Device for clot retrieval and distal protection |
US20030199819A1 (en) | 2002-04-17 | 2003-10-23 | Beck Robert C. | Filter wire system |
US20030204168A1 (en) | 2002-04-30 | 2003-10-30 | Gjalt Bosma | Coated vascular devices |
US8070769B2 (en) | 2002-05-06 | 2011-12-06 | Boston Scientific Scimed, Inc. | Inverted embolic protection filter |
US7060082B2 (en) | 2002-05-06 | 2006-06-13 | Scimed Life Systems, Inc. | Perfusion guidewire in combination with a distal filter |
DE60324787D1 (en) | 2002-05-10 | 2009-01-02 | Salviac Ltd | SYSTEM FOR FILTERING EMBOLI |
US7585309B2 (en) | 2002-05-16 | 2009-09-08 | Boston Scientific Scimed, Inc. | Aortic filter |
US7001406B2 (en) | 2002-05-23 | 2006-02-21 | Scimed Life Systems Inc. | Cartridge embolic protection filter and methods of use |
US7959584B2 (en) | 2002-05-29 | 2011-06-14 | Boston Scientific Scimed, Inc. | Dedicated distal protection guidewires |
US7326224B2 (en) | 2002-06-11 | 2008-02-05 | Boston Scientific Scimed, Inc. | Shaft and wire lock |
US7717934B2 (en) | 2002-06-14 | 2010-05-18 | Ev3 Inc. | Rapid exchange catheters usable with embolic protection devices |
US7172614B2 (en) * | 2002-06-27 | 2007-02-06 | Advanced Cardiovascular Systems, Inc. | Support structures for embolic filtering devices |
US7166120B2 (en) * | 2002-07-12 | 2007-01-23 | Ev3 Inc. | Catheter with occluding cuff |
-
2000
- 2000-04-20 GB GB0127195A patent/GB2369575A/en not_active Withdrawn
-
2001
- 2001-04-20 CA CA002406521A patent/CA2406521A1/en not_active Abandoned
- 2001-04-20 AU AU5059501A patent/AU5059501A/en active Pending
- 2001-04-20 DE DE10196091T patent/DE10196091T1/en not_active Withdrawn
- 2001-04-20 IE IE20010390A patent/IE20010390A1/en not_active Application Discontinuation
- 2001-04-20 MX MXPA02010352A patent/MXPA02010352A/en not_active Application Discontinuation
- 2001-04-20 JP JP2001577879A patent/JP2003530955A/en active Pending
- 2001-04-20 AU AU50596/01A patent/AU5059601A/en not_active Abandoned
- 2001-04-20 DE DE20180086U patent/DE20180086U1/en not_active Expired - Lifetime
- 2001-04-20 EP EP01923915A patent/EP1274371B1/en not_active Expired - Lifetime
- 2001-04-20 EP EP10007731.2A patent/EP2241285B1/en not_active Expired - Lifetime
- 2001-04-20 US US09/838,544 patent/US6887256B2/en not_active Expired - Lifetime
- 2001-04-20 CA CA002406919A patent/CA2406919A1/en not_active Abandoned
- 2001-04-20 JP JP2001577880A patent/JP2003530956A/en active Pending
- 2001-04-20 AT AT01923916T patent/ATE476154T1/en not_active IP Right Cessation
- 2001-04-20 DE DE60142732T patent/DE60142732D1/en not_active Expired - Lifetime
- 2001-04-20 AT AT01923915T patent/ATE455513T1/en not_active IP Right Cessation
- 2001-04-20 WO PCT/IE2001/000052 patent/WO2001080776A1/en active IP Right Grant
- 2001-04-20 GB GB0223027A patent/GB2402338A/en not_active Withdrawn
- 2001-04-20 DE DE10191273T patent/DE10191273T1/en not_active Withdrawn
- 2001-04-20 BR BR0110186-2A patent/BR0110186A/en not_active Application Discontinuation
- 2001-04-20 WO PCT/IE2001/000053 patent/WO2001080777A2/en active Application Filing
- 2001-04-20 EP EP01923916A patent/EP1274372B1/en not_active Expired - Lifetime
- 2001-04-20 DE DE20180373U patent/DE20180373U1/en not_active Expired - Lifetime
-
2002
- 2002-01-08 US US09/838,545 patent/US20020049467A1/en not_active Abandoned
-
2003
- 2003-03-05 US US10/379,435 patent/US20030187474A1/en not_active Abandoned
- 2003-03-05 US US10/378,675 patent/US20040049226A1/en not_active Abandoned
- 2003-03-26 US US10/396,716 patent/US20040127934A1/en not_active Abandoned
-
2004
- 2004-08-13 US US10/917,538 patent/US20050234502A1/en not_active Abandoned
- 2004-09-14 US US10/939,995 patent/US20050228437A1/en not_active Abandoned
- 2004-11-04 US US10/980,865 patent/US7972352B2/en not_active Expired - Fee Related
-
2005
- 2005-04-27 US US11/115,418 patent/US20060074446A1/en not_active Abandoned
- 2005-06-01 US US11/141,709 patent/US8123776B2/en not_active Expired - Fee Related
-
2006
- 2006-08-23 US US11/508,805 patent/US20070173883A1/en not_active Abandoned
- 2006-08-30 US US11/512,702 patent/US20070162068A1/en not_active Abandoned
-
2007
- 2007-01-05 US US11/620,509 patent/US8052716B2/en not_active Expired - Fee Related
- 2007-01-31 US US11/669,447 patent/US7780697B2/en not_active Expired - Fee Related
- 2007-01-31 US US11/669,460 patent/US7846176B2/en not_active Expired - Fee Related
- 2007-03-26 US US11/691,130 patent/US20070282369A1/en not_active Abandoned
- 2007-04-25 US US11/739,713 patent/US7842066B2/en not_active Expired - Fee Related
- 2007-08-20 US US11/841,302 patent/US8241319B2/en not_active Expired - Lifetime
-
2010
- 2010-11-08 US US12/941,473 patent/US20110054516A1/en not_active Abandoned
-
2011
- 2011-06-03 US US13/152,516 patent/US20110307002A1/en not_active Abandoned
Patent Citations (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4790812A (en) * | 1985-11-15 | 1988-12-13 | Hawkins Jr Irvin F | Apparatus and method for removing a target object from a body passsageway |
US4832055A (en) * | 1988-07-08 | 1989-05-23 | Palestrant Aubrey M | Mechanically locking blood clot filter |
US5647858A (en) * | 1989-07-25 | 1997-07-15 | Smith & Nephew, Inc. | Zirconium oxide and zirconium nitride coated catheters |
US5454788A (en) * | 1991-04-24 | 1995-10-03 | Baxter International Inc. | Exchangeable integrated-wire balloon catheter |
US5989281A (en) * | 1995-11-07 | 1999-11-23 | Embol-X, Inc. | Cannula with associated filter and methods of use during cardiac surgery |
US5769816A (en) * | 1995-11-07 | 1998-06-23 | Embol-X, Inc. | Cannula with associated filter |
US5895399A (en) * | 1996-07-17 | 1999-04-20 | Embol-X Inc. | Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries |
US5993469A (en) * | 1996-07-17 | 1999-11-30 | Embol-X, Inc. | Guiding catheter for positioning a medical device within an artery |
US6010522A (en) * | 1996-07-17 | 2000-01-04 | Embol-X, Inc. | Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries |
US5662671A (en) * | 1996-07-17 | 1997-09-02 | Embol-X, Inc. | Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries |
US6027509A (en) * | 1996-10-03 | 2000-02-22 | Scimed Life Systems, Inc. | Stent retrieval device |
US5941869A (en) * | 1997-02-12 | 1999-08-24 | Prolifix Medical, Inc. | Apparatus and method for controlled removal of stenotic material from stents |
US5814064A (en) * | 1997-03-06 | 1998-09-29 | Scimed Life Systems, Inc. | Distal protection device |
US6001118A (en) * | 1997-03-06 | 1999-12-14 | Scimed Life Systems, Inc. | Distal protection device and method |
US7094249B1 (en) * | 1997-03-06 | 2006-08-22 | Boston Scientific Scimed, Inc. | Distal protection device and method |
US5911734A (en) * | 1997-05-08 | 1999-06-15 | Embol-X, Inc. | Percutaneous catheter and guidewire having filter and medical device deployment capabilities |
US5895410A (en) * | 1997-09-12 | 1999-04-20 | B. Braun Medical, Inc. | Introducer for an expandable vascular occlusion device |
US20020026213A1 (en) * | 1997-11-07 | 2002-02-28 | Paul Gilson | Embolic protection device |
US6146396A (en) * | 1999-03-05 | 2000-11-14 | Board Of Regents, The University Of Texas System | Declotting method and apparatus |
US6468291B2 (en) * | 1999-07-16 | 2002-10-22 | Baff Llc | Emboli filtration system having integral strut arrangement and methods of use |
US20010012951A1 (en) * | 1999-07-16 | 2001-08-09 | Bates Mark C. | Emboli filtration system having integral strut arrangement and methods of use |
US6179859B1 (en) * | 1999-07-16 | 2001-01-30 | Baff Llc | Emboli filtration system and methods of use |
US20020111648A1 (en) * | 1999-08-27 | 2002-08-15 | Kusleika Richard S. | Slideable vascular filter |
US6325815B1 (en) * | 1999-09-21 | 2001-12-04 | Microvena Corporation | Temporary vascular filter |
US20020169414A1 (en) * | 2000-02-01 | 2002-11-14 | Kletschka Harold D. | Embolic protection device having expandable trap |
US20020128681A1 (en) * | 2000-11-27 | 2002-09-12 | Scimed Life Systems, Inc. | Distal protection device and method |
US20020151927A1 (en) * | 2001-04-03 | 2002-10-17 | Nareak Douk | Temporary intraluminal filter guidewire and methods of use |
US6818006B2 (en) * | 2001-04-03 | 2004-11-16 | Medtronic Vascular, Inc. | Temporary intraluminal filter guidewire |
US6866677B2 (en) * | 2001-04-03 | 2005-03-15 | Medtronic Ave, Inc. | Temporary intraluminal filter guidewire and methods of use |
US20020143360A1 (en) * | 2001-04-03 | 2002-10-03 | Nareak Douk | Temporary intraluminal filter guidewire |
US20030042186A1 (en) * | 2001-08-31 | 2003-03-06 | Boyle William J. | Embolic protection devices one way porous membrane |
US20030083692A1 (en) * | 2001-10-29 | 2003-05-01 | Scimed Life Systems, Inc. | Distal protection device and method of use thereof |
US20030212431A1 (en) * | 2002-05-13 | 2003-11-13 | Eamon Brady | Embolic protection system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090254116A1 (en) * | 2008-04-03 | 2009-10-08 | Gardia Medical Ltd. | Retrieval catheter and methods of retrieving deployed medical devices |
WO2009122300A3 (en) * | 2008-04-03 | 2009-12-23 | Gardia Medical Ltd. | Retrieval catheter and methods of retrieving deployed medical devices |
CN102056574A (en) * | 2008-04-03 | 2011-05-11 | 加尔迪亚医疗有限公司 | Retrieval catheter and methods of retrieving deployed medical devices |
US20100191272A1 (en) * | 2009-01-23 | 2010-07-29 | Salviac Limited | Distal access embolic protection system and methods of using the same |
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7144408B2 (en) | Embolic protection system | |
US20070162068A1 (en) | Embolic protection system | |
US9597211B2 (en) | Prosthesis delivery system | |
JP2009542302A (en) | Collecting sheath and method of using the same | |
IE20030157A1 (en) | An embolic protection system | |
IE20030158A1 (en) | An embolic protection system | |
AU2001250595A1 (en) | An embolic protection system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |