Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS20060025804 A1
Publication typeApplication
Application numberUS 11/225,797
Publication dateFeb 2, 2006
Filing dateSep 13, 2005
Priority dateMay 7, 2003
Also published asCA2523668A1, DE602004031103D1, EP1620037A2, EP1620037B1, US6969396, US20040225321, WO2004100830A2, WO2004100830A3
Publication number11225797, 225797, US 2006/0025804 A1, US 2006/025804 A1, US 20060025804 A1, US 20060025804A1, US 2006025804 A1, US 2006025804A1, US-A1-20060025804, US-A1-2006025804, US2006/0025804A1, US2006/025804A1, US20060025804 A1, US20060025804A1, US2006025804 A1, US2006025804A1
InventorsJeff Krolik, Amr Salahieh, Farhad Khosravi, Richard Renati
Original AssigneeJeff Krolik, Amr Salahieh, Farhad Khosravi, Renati Richard J
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Filter membrane with increased surface area
US 20060025804 A1
Abstract
A filtering device with an increased surface area, and method of making and using the same. The present invention comprises a filtering device including an elongate shaft and a filter coupled to the shaft. The filter may include a filter membrane configured to have an increased surface area.
Images(7)
Previous page
Next page
Claims(27)
1. (canceled)
2. A filtering device, comprising:
an elongated shaft having a proximal section and a distal section;
a filter coupled to the distal section of the elongated shaft, the filter including a filter frame and a pleated filter membrane operable between a collapsed position and an expandable position, the filter membrane including a proximal region and a distal region; and
one or more support fibers operatively coupled to the filter membrane.
3. The filtering device of claim 2, wherein the elongated shaft comprises a guidewire.
4. The filtering device of claim 2, wherein the elongated shaft comprises a tubular filter cartridge slidably disposed over a guidewire.
5. The filtering device of claim 2, wherein said one or more fibers are longitudinally disposed along a length of the filter
6. The filtering device of claim 2, wherein said one or more fibers are attached to the filter frame and the elongated shaft.
7. The filtering device of claim 2, wherein said one or more fibers extend from the filter frame to a distal end of the filter.
8. The filtering device of claim 2, wherein said one or more fibers are radially spaced apart from each other, and wherein the radial spacing between each fiber and the elongated shaft increases towards said proximal region.
9. The filtering device of claim 2, wherein the filter membrane includes a number of folds or pleats for augmenting the surface area of the filter.
10. The filtering device of claim 9, wherein the folds or pleats are defined by inward deflections of the filter membrane.
11. The filtering device of claim 9, wherein the folds or pleats are defined by one or more bonds between the filter membrane and the elongated shaft.
12. The filtering device of claim 11, wherein said bonds are longitudinally disposed along a length of the filter membrane.
13. The filtering device of claim 12, wherein the bonds are disposed along only the distal region of the filter membrane.
14. The filtering device of claim 12, wherein the bonds are disposed along only the proximal region of the filter membrane.
15. The filtering device of claim 12, wherein the bonds are disposed along the entire length of the filter membrane.
16. The filtering device of claim 2, wherein the filter includes one or more sinusoidal ribs.
17. The filtering device of claim 2, further comprising a distal apex ring member slidably disposed along the elongated shaft, said ring member adapted to actuate the filter between an inverted position and an evened position.
18. A filtering device, comprising:
an elongated shaft having a proximal section and a distal section;
a filter coupled to the distal section of the elongated shaft, the filter including a filter frame and a filter membrane operable between a collapsed position and an expandable position, the filter membrane including a proximal region, a distal region, and a number of folds or pleats defining an augmented surface area of the filter; and
one or more support fibers operatively coupled to the folds or pleats of the filter membrane, said one or more support fibers being longitudinally disposed along a length of the filter.
19. The filtering device of claim 18, wherein said one or more fibers are attached to the filter frame and the elongated shaft.
20. The filtering device of claim 18, wherein said one or more fibers extend from the filter frame to a distal end of the filter.
21. The filtering device of claim 18, wherein said one or more fibers are radially spaced apart from each other, and wherein the radial spacing between each fiber and the elongated shaft increases towards said proximal region.
22. The filtering device of claim 18, wherein the filter membrane includes a number of folds or pleats for augmenting the surface area of the filter.
23. The filtering device of claim 18, wherein the folds or pleats are defined by inward deflections of the filter membrane.
24. The filtering device of claim 18, wherein the folds or pleats are defined by one or more bonds between the filter membrane and the elongated shaft.
25. The filtering device of claim 18, wherein the filter includes one or more sinusoidal ribs.
26. The filtering device of claim 18, further comprising a distal apex ring member slidably disposed along the elongated shaft, said ring member adapted to actuate the filter between an inverted position and an everted position.
27. A filtering device, comprising:
an elongated shaft having a proximal section and a distal section;
a filter coupled to the distal section of the elongated shaft, the filter including a filter frame and a filter membrane operable between a collapsed position and an expandable position, the filter membrane including a proximal region, a distal region, and a number of folds or pleats each defining an inward deflection of the filter membrane;
one or more support fibers operatively coupled to the folds or pleats of the filter membrane, each of said one or more fibers being radially spaced apart from each other; and
wherein the radial spacing between each fiber and the elongated shaft increases towards the proximal region of said filter membrane.
Description
  • [0001]
    This application is a continuation application of U.S. application Ser. No. 10/430,940, filed May 7, 2003.
  • FIELD OF THE INVENTION
  • [0002]
    The present invention pertains to filtering devices. More particularly, the present invention pertains to embolic protection filtering devices having a filter membrane with an increased surface area.
  • BACKGROUND
  • [0003]
    Heart and vascular disease are major problems in the United States and throughout the world. Conditions such as atherosclerosis result in blood vessels becoming blocked or narrowed. This blockage can result in lack of oxygenation of the heart, which has significant consequences since the heart muscle must be well oxygenated in order to maintain its blood pumping action.
  • [0004]
    Occluded, stenotic, or narrowed blood vessels may be treated with a number of relatively non-invasive medical procedures including percutaneous transluminal angioplasty (PTA), percutaneous transluminal coronary angioplasty (PTCA), and atherectomy. Angioplasty techniques typically involve the use of a balloon catheter. The balloon catheter is advanced over a guidewire such that the balloon is positioned adjacent a stenotic lesion. The balloon is then inflated and the restriction of the vessel is opened. During an atherectomy procedure, the stenotic lesion may be mechanically cut away from the blood vessel wall using an atherectomy catheter.
  • [0005]
    During angioplasty and atherectomy procedures, embolic debris can be separated from the wall of the blood vessel. If this debris enters the circulatory system, it could block other vascular regions including the neural and pulmonary vasculature. During angioplasty procedures, stenotic debris may also break loose due to manipulation of the blood vessel. Because of this debris, a number of devices, termed embolic protection devices, have been developed to filter out this debris.
  • BRIEF SUMMARY
  • [0006]
    The invention provides design, material, manufacturing method, and use alternatives for intravascular filtering devices. In at least some embodiments, these filtering devices include a shaft having an embolic protection filter coupled thereto. The filter may adapted and configured to have an increased surface area or otherwise include other improvements. These and other desirable features are described in greater detail below.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0007]
    FIG. 1 is side view of an example embolic protection filtering device;
  • [0008]
    FIG. 2 is a cross-sectional view of the filtering device through line 2-2;
  • [0009]
    FIG. 3 is a cross-sectional view of the filtering device through line 3-3;
  • [0010]
    FIG. 4 is side view of another example embolic protection filtering device;
  • [0011]
    FIG. 5 is a cross-sectional view of the filtering device through line 5-5;
  • [0012]
    FIG. 6 is a cross-sectional view of the filtering device through line 6-6;
  • [0013]
    FIG. 7 is a cross-sectional view of the filtering device through line 7-7;
  • [0014]
    FIG. 8 is a side view of another example embolic protection filtering device;
  • [0015]
    FIG. 9 is a side view of a portion of the filtering device shown in FIG. 8;
  • [0016]
    FIG. 10 is a side view of another example embolic protection filtering device;
  • [0017]
    FIG. 11 is a side view of another configuration of the filtering device shown in FIG. 10; and
  • [0018]
    FIG. 12 is a side view of another example embolic protection filtering device.
  • DETAILED DESCRIPTION
  • [0019]
    The following description should be read with reference to the drawings wherein like reference numerals indicate like elements throughout the several views. The detailed description and drawings illustrate example embodiments of the claimed invention.
  • [0020]
    For a number of reasons, it may be desirable to augment the amount of surface area on a device that can be used for filtering debris. FIG. 1 is a side view of an example filtering device 10 including a filter 12 having an augmented surface area. This structural feature may improve the functioning of filter 12, for example, by increasing the amount of debris filter 12 can hold, by contributing to more efficient flow through filter 12, and by enhancing the strength of filter 12. It can be appreciated that the desirable structural features of filter 12 may also be described in other ways (as an alternative or in addition to having an augmented surface area) such as having an augmented filtering capability, filtering ability, filtering capacity, and the like. The augmented surface area may also provide filter 12 (and/or filtering device 10) with a number of additional desirable features including those described below.
  • [0021]
    In general, filter 12 may be adapted to operate between a first generally collapsed configuration and a second generally expanded configuration for collecting debris in a body lumen. In some embodiments, filter 12 and/or filtering device 10 can be delivered to an appropriate intravascular location, for example “downstream” of an intravascular lesion, using an appropriate filter delivery device. Similarly, filter 12 can be removed from the vasculature at the desired time by an appropriate filter retrieval device.
  • [0022]
    Filter 12 may be coupled to a shaft 14 and may include a filter frame 16 and a filter membrane or fabric 18 coupled to filter frame 16. Frame 16 may take the form of any one of a number of appropriate shapes and configurations. For example, frame 16 may comprise a generally circular filter mouth or loop, which may define the primary opening for blood to travel into and be filtered by filter 12. However, essentially any appropriate shape or configuration may be utilized without departing from the spirit of the invention.
  • [0023]
    Frame 16 may be comprised of any appropriate material. For example, frame 16 may be comprised of a “self-expanding” shape-memory material such as nickel-titanium alloy that may be configured to bias filter 12 to be in the second expanded configuration. Alternatively, frame 16 may be comprised of essentially any appropriate metal, metal-alloy, polymer, combinations thereof, and the like including any of the materials described herein. In some embodiments, frame 16 or portions thereof may be doped with, plated with, or otherwise include a radiopaque material. Radiopaque materials are understood to be materials capable of producing a relatively bright image on a fluoroscopy screen or another imaging technique during a medical procedure. This relatively bright image aids the user of device 10 in determining its location. Some examples of radiopaque materials can include, but are not limited to, gold, platinum, palladium, tantalum, tungsten alloy, plastic material loaded with a radiopaque filler, and the like. For example, a radiopaque wire disposed about a portion of frame 16.
  • [0024]
    Filter membrane 18 may be comprised of any appropriate material such as a polymer and may be drilled (for example, formed by known laser techniques) or otherwise include one or more openings 20. Holes or openings 20 can be sized to allow blood flow therethrough but restrict flow of debris or emboli floating in the body lumen or cavity. In at least some embodiments, filter membrane 18 may be configured to augment the surface area of filter 12 as is described in more detail below.
  • [0025]
    One or more struts 22 may extend between frame 16 and shaft 14. In some embodiments, struts 22 can be coupled to shaft 14 by a coupling 24, for example a heat-shrink tube, a crimp fitting, and the like. Alternatively, struts 22 may be coupled to shaft 14 by one or more windings of struts 22 about shaft 14. In some embodiments, struts 22 may comprise an extension or integral part of frame 16. Alternatively, struts 22 and frame 16 may comprise two distinct structures that can be attached to one another.
  • [0026]
    Shaft 14 can be made of any suitable materials including metals, metal alloys, polymers, or the like, or combinations or mixtures thereof. Some examples of suitable metals and metal alloys include stainless steel, such as 304v stainless steel; nickel-titanium alloy, such as nitinol, nickel-chromium alloy, nickel-chromium-iron alloy, cobalt alloy, or the like; or other suitable material. Although the embodiment shown in FIG. 1 illustrates shaft 14 as being a guidewire, shaft 14 is not intended to be limited to being only a guidewire. It can be appreciated that shaft 14 may comprise number of different structures including a catheter (e.g., therapeutic, diagnostic, or guide catheter), endoscopic device, laproscopic device, an embolic protection device, or any other suitable device. In some embodiments, shaft 14 may comprise a tubular filter cartridge. According to this embodiment, filtering device 10 (and/or shaft 14) can be configured to be slidable over a guidewire or other suitable medical device.
  • [0027]
    As stated above, filter membrane 18 may be adapted and configured to augment the surface area of filter 12. Augmenting the surface area of filter 12 may be accomplished in a number of ways. For example, filter membrane 18 may include one or more folds or pleats 26 that increase the surface area where debris may be captured or filtered. The amount of surface area that may be added to filter 12 may depend on the “depth” or amount of folding included with each pleat 26. Accordingly, the “deeper” the amount of folding included with each pleat 26, the greater the increasing in surface area. It can be appreciated that alterations to the amount of folding or depth of pleats 26 may vary without departing from the spirit of the invention.
  • [0028]
    In at least some embodiments, pleats 26 may be defined by inward deflections of filter membrane 18. This configuration may allow filter membrane 18 to expand outwardly toward a bulbous shape when greater amounts of debris are captured. Alternatively, pleats 26 may be defined by one or more longitudinal bonds 28 between filter membrane 18 and shaft 14 as best seen in FIG. 2. Bonds 28, for example, may be disposed adjacent a distal region 30 of filter 12. Portions of filter membrane 18, however, may not be bonded to shaft 14 as best seen in FIG. 3. The non-bonded portion may be disposed adjacent a proximal region 32 of filter 12. Although the combination of FIGS. 1, 2 and 3 illustrate one example configuration of filter membrane 18 where bonds 28 are disposed along distal region 30 of filter 12 but not along proximal region 32, this arrangement is not intended to be limiting. Generally, bonds 28 may be disposed along distal region 30, along proximal region 32, along the entire length of filter 12, or any other suitable combination or arrangement. FIGS. 2 and 3 also illustrate more clearly that shaft 14 may comprise a tubular filter cartridge that may be slidable over a medical device such as a guidewire 34.
  • [0029]
    FIG. 4 is another example filtering device 110 that is essentially the same in form and function as device 10, except that filter 112 include one or more longitudinal fibers 136 (best seen in FIGS. 5, 6, and 7) and that the folds or pleats 126 of filter membrane 118 may be defined by bonds 128 (best seen in FIG. 5, 6, and 7) between filter membrane 118 and fibers 136. According to this embodiment, fibers 136 may act as a substrate or bonding surface for filter membrane 118 as well as help define a configuration of filter 112 that has increased surface area. Fibers 136 may also provide filter 112 with other desirable features such as strength, radiopacity, etc.
  • [0030]
    In at least some embodiments, fibers 136 may be attached to and extend distally from filter frame 116. For example, opposite ends of fibers 136 may be attached to filter frame 116 and shaft 14. According to this embodiment, the spacing between fibers 136 and shaft 14 gets larger at more proximal filter locations. For example, FIG. 5 is a cross-sectional view of filter 112 at a relatively distal position, illustrating fibers 136 disposed adjacent shaft 14. FIGS. 6 and 7, which illustrate increasingly more proximal positions along filter 112, depict increasing radial spacing of fibers 136 from shaft 12.
  • [0031]
    FIG. 8 is another example filtering device 210 that is essentially the same in form and function as any of the others described herein except that filter 212 includes one or more sinusoidal ribs 238. In at least some embodiments, sinusoidal ribs 238 may be attached to or disposed adjacent to filter frame 16 and/or filter membrane 18, and may extend distally along filter 212. The precise location and length of ribs 238, however, may vary. In general, ribs 238 may be configured for being disposed along the region of filter 212 that contacts or may contact the interior wall of a blood vessel 240 as shown in FIG. 9. This feature may be desirable, for example, because it allows a smaller portion of filter membrane 218 to be “blocked” by contact with blood vessel 240. Accordingly, the surface area of filter 212 that can be used to collect debris is increased.
  • [0032]
    Another example filtering device 310 is shown in FIG. 10. Device 310 is essentially the same in form and function as any of the other devices described herein except that filter 310 includes a distal apex ring member 342 that is slidable along shaft 14. Accordingly, filter 312 may be able to shift from a first relatively shortened or inverted configuration (as shown in FIG. 10) to a second relatively elongated or everted configuration (as shown in FIG. 11).
  • [0033]
    Shifting between the first and second configurations may be accomplished in a number of ways. For example, filter 312 may be originally placed within a body lumen in the first configuration and then shift to the second configuration as filter 312 becomes filled with debris. According to this embodiment, ring member 342 may frictionally engage shaft 14. However, when filter 312 becomes sufficiently full, forces exerted on filter 312 (e.g., due to fluid flow within the body lumen) may overcome the frictional force and shift filter 312 to the second configuration.
  • [0034]
    Alternatively, shifting the configuration of filter 312 may be accomplished in another example filtering device 410 by using a shifting member or rod 444 as shown in FIG. 12. According to this embodiment, rod 444 may be attached to ring member 342 and extend proximally therefrom. A clinician may then grasp rod 444 and alter the configuration of filter 312 by proximally or distally shifting rod 444.
  • [0035]
    It should be understood that this disclosure is, in many respects, only illustrative. Changes may be made in details, particularly in matters of shape, size, and arrangement of steps without exceeding the scope of the invention. The invention's scope is, of course, defined in the language in which the appended claims are expressed.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3952747 *Mar 28, 1974Apr 27, 1976Kimmell Jr Garman OFilter and filter insertion instrument
US4425908 *Oct 22, 1981Jan 17, 1984Beth Israel HospitalBlood clot filter
US4448205 *Jun 30, 1981May 15, 1984Stenkvist Bjoern GDevice for taking samples of cells from the cervix uteri
US4448227 *Oct 13, 1981May 15, 1984Giuseppe ZanichelliDressing or preserving liquid filling unit for vacuum filling machines
US4494531 *Dec 6, 1982Jan 22, 1985Cook, IncorporatedExpandable blood clot filter
US4590938 *May 4, 1984May 27, 1986Segura Joseph WMedical retriever device
US4643184 *Apr 17, 1984Feb 17, 1987Mobin Uddin KaziEmbolus trap
US4650466 *Nov 1, 1985Mar 17, 1987Angiobrade PartnersAngioplasty device
US4662885 *Sep 3, 1985May 5, 1987Becton, Dickinson And CompanyPercutaneously deliverable intravascular filter prosthesis
US4723549 *Sep 18, 1986Feb 9, 1988Wholey Mark HMethod and apparatus for dilating blood vessels
US4794928 *Jun 10, 1987Jan 3, 1989Kletschka Harold DAngioplasty device and method of using the same
US4807626 *Dec 30, 1985Feb 28, 1989Mcgirr Douglas BStone extractor and method
US4842579 *Jul 29, 1988Jun 27, 1989Surgical Systems & Instruments, Inc.Atherectomy device
US4921478 *Feb 23, 1988May 1, 1990C. R. Bard, Inc.Cerebral balloon angioplasty system
US4921484 *Jul 25, 1988May 1, 1990Cordis CorporationMesh balloon catheter device
US4926858 *Aug 7, 1989May 22, 1990Devices For Vascular Intervention, Inc.Atherectomy device for severe occlusions
US4997435 *Sep 25, 1989Mar 5, 1991Methodist Hospital Of Indiana Inc.Percutaneous catheter with encapsulating receptacle
US4998539 *Dec 13, 1988Mar 12, 1991Delsanti Gerard LMethod of using removable endo-arterial devices to repair detachments in the arterial walls
US5002560 *Sep 8, 1989Mar 26, 1991Advanced Cardiovascular Systems, Inc.Expandable cage catheter with a rotatable guide
US5011488 *Aug 20, 1990Apr 30, 1991Robert GinsburgThrombus extraction system
US5100423 *Aug 21, 1990Mar 31, 1992Medical Engineering & Development Institute, Inc.Ablation catheter
US5102415 *Aug 30, 1990Apr 7, 1992Guenther Rolf WApparatus for removing blood clots from arteries and veins
US5108419 *Aug 16, 1990Apr 28, 1992Evi CorporationEndovascular filter and method for use thereof
US5192286 *Jul 26, 1991Mar 9, 1993Regents Of The University Of CaliforniaMethod and device for retrieving materials from body lumens
US5324304 *Jun 18, 1992Jun 28, 1994William Cook Europe A/SIntroduction catheter set for a collapsible self-expandable implant
US5383887 *Dec 28, 1993Jan 24, 1995Celsa LgDevice for selectively forming a temporary blood filter
US5421832 *May 12, 1994Jun 6, 1995Lefebvre; Jean-MarieFilter-catheter and method of manufacturing same
US5423742 *Oct 14, 1993Jun 13, 1995Schneider EuropeMethod for the widening of strictures in vessels carrying body fluid
US5601595 *Oct 25, 1994Feb 11, 1997Scimed Life Systems, Inc.Remobable thrombus filter
US5626605 *Dec 30, 1992May 6, 1997Scimed Life Systems, Inc.Thrombosis filter
US5634942 *Apr 19, 1995Jun 3, 1997B. Braun CelsaAssembly comprising a blood filter for temporary or definitive use and a device for implanting it
US5720764 *Jun 10, 1995Feb 24, 1998Naderlinger; EduardVena cava thrombus filter
US5725550 *Aug 9, 1996Mar 10, 1998B. Braun Celsa (Societe Anonyme)Filtration unit for retaining blood clots
US5728066 *Dec 10, 1996Mar 17, 1998Daneshvar; YousefInjection systems and methods
US5746767 *Feb 7, 1997May 5, 1998Scimed Life Systems, Inc.Removable thrombus filter
US5749848 *Nov 13, 1995May 12, 1998Cardiovascular Imaging Systems, Inc.Catheter system having imaging, balloon angioplasty, and stent deployment capabilities, and method of use for guided stent deployment
US5769816 *Apr 30, 1996Jun 23, 1998Embol-X, Inc.Cannula with associated filter
US5876367 *Dec 5, 1996Mar 2, 1999Embol-X, Inc.Cerebral protection during carotid endarterectomy and downstream vascular protection during other surgeries
US5895399 *Oct 9, 1996Apr 20, 1999Embol-X Inc.Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries
US5910154 *Feb 12, 1998Jun 8, 1999Embol-X, Inc.Percutaneous catheter and guidewire having filter and medical device deployment
US5911734 *May 8, 1997Jun 15, 1999Embol-X, Inc.Percutaneous catheter and guidewire having filter and medical device deployment capabilities
US6010522 *Jul 24, 1996Jan 4, 2000Embol-X, Inc.Atherectomy device having trapping and excising means for removal of plaque from the aorta and other arteries
US6013085 *Nov 7, 1997Jan 11, 2000Howard; JohnMethod for treating stenosis of the carotid artery
US6027520 *Apr 5, 1999Feb 22, 2000Embol-X, Inc.Percutaneous catheter and guidewire having filter and medical device deployment capabilities
US6042598 *Apr 5, 1999Mar 28, 2000Embol-X Inc.Method of protecting a patient from embolization during cardiac surgery
US6051014 *Oct 13, 1998Apr 18, 2000Embol-X, Inc.Percutaneous filtration catheter for valve repair surgery and methods of use
US6051015 *Oct 28, 1998Apr 18, 2000Embol-X, Inc.Modular filter with delivery system
US6053932 *May 20, 1998Apr 25, 2000Scimed Life Systems, Inc.Distal protection device
US6059814 *Aug 29, 1997May 9, 2000Medtronic Ave., Inc.Filter for filtering fluid in a bodily passageway
US6066149 *Sep 30, 1997May 23, 2000Target Therapeutics, Inc.Mechanical clot treatment device with distal filter
US6066158 *Jul 25, 1996May 23, 2000Target Therapeutics, Inc.Mechanical clot encasing and removal wire
US6068645 *Jun 7, 1999May 30, 2000Tu; HoshengFilter system and methods for removing blood clots and biological material
US6168579 *Aug 4, 1999Jan 2, 2001Scimed Life Systems, Inc.Filter flush system and methods of use
US6171327 *Feb 24, 1999Jan 9, 2001Scimed Life Systems, Inc.Intravascular filter and method
US6171328 *Nov 9, 1999Jan 9, 2001Embol-X, Inc.Intravascular catheter filter with interlocking petal design and methods of use
US6179851 *Jun 15, 1999Jan 30, 2001Scimed Life Systems, Inc.Guiding catheter for positioning a medical device within an artery
US6179859 *Jul 16, 1999Jan 30, 2001Baff LlcEmboli filtration system and methods of use
US6179861 *Dec 23, 1999Jan 30, 2001Incept LlcVascular device having one or more articulation regions and methods of use
US6203561 *Dec 23, 1999Mar 20, 2001Incept LlcIntegrated vascular device having thrombectomy element and vascular filter and methods of use
US6203732 *Jul 2, 1998Mar 20, 2001Intra Therapeutics, Inc.Method for manufacturing intraluminal device
US6206561 *Mar 8, 1999Mar 27, 2001Kuhn Rikon CorporationCollapsible whisk
US6206868 *Jun 14, 1999Mar 27, 2001Arteria Medical Science, Inc.Protective device and method against embolization during treatment of carotid artery disease
US6214026 *Dec 23, 1999Apr 10, 2001Incept LlcDelivery system for a vascular device with articulation region
US6221006 *Feb 9, 1999Apr 24, 2001Artemis Medical Inc.Entrapping apparatus and method for use
US6221066 *Mar 9, 1999Apr 24, 2001Micrus CorporationShape memory segmented detachable coil
US6224620 *Nov 18, 1999May 1, 2001Embol-X, Inc.Devices and methods for protecting a patient from embolic material during surgery
US6231544 *May 12, 1997May 15, 2001Embol-X, Inc.Cardioplegia balloon cannula
US6235044 *Aug 4, 1999May 22, 2001Scimed Life Systems, Inc.Percutaneous catheter and guidewire for filtering during ablation of mycardial or vascular tissue
US6235045 *Dec 6, 1999May 22, 2001Embol-X, Inc.Cannula with associated filter and methods of use
US6238412 *Nov 11, 1998May 29, 2001William DubrulBiological passageway occlusion removal
US6245087 *Aug 3, 1999Jun 12, 2001Embol-X, Inc.Variable expansion frame system for deploying medical devices and methods of use
US6245088 *Aug 14, 1999Jun 12, 2001Samuel R. LoweryRetrievable umbrella sieve and method of use
US6245089 *Sep 30, 1999Jun 12, 2001Scimed Life Systems, Inc.Distal protection device and method
US6336934 *Nov 9, 1998Jan 8, 2002Salviac LimitedEmbolic protection device
US6344049 *Sep 12, 2000Feb 5, 2002Scion Cardio-Vascular, Inc.Filter for embolic material mounted on expandable frame and associated deployment system
US6355051 *Mar 4, 1999Mar 12, 2002Bioguide Consulting, Inc.Guidewire filter device
US6361545 *Sep 22, 1998Mar 26, 2002Cardeon CorporationPerfusion filter catheter
US6364895 *Jan 28, 2000Apr 2, 2002Prodesco, Inc.Intraluminal filter
US6371969 *Dec 3, 1999Apr 16, 2002Scimed Life Systems, Inc.Distal protection device and method
US6371971 *Apr 28, 2000Apr 16, 2002Scimed Life Systems, Inc.Guidewire filter and methods of use
US6375670 *Aug 25, 2000Apr 23, 2002Prodesco, Inc.Intraluminal filter
US6383206 *Dec 30, 1999May 7, 2002Advanced Cardiovascular Systems, Inc.Embolic protection system and method including filtering elements
US6391044 *Feb 12, 1999May 21, 2002Angioguard, Inc.Vascular filter system
US6398756 *May 14, 2001Jun 4, 2002Advanced Cardiovascular Systems, Inc.Embolic protection system and method including an emboli-capturing catheter
US6506203 *Dec 19, 2000Jan 14, 2003Advanced Cardiovascular Systems, Inc.Low profile sheathless embolic protection system
US6511496 *Sep 12, 2000Jan 28, 2003Advanced Cardiovascular Systems, Inc.Embolic protection device for use in interventional procedures
US6511503 *Dec 30, 1999Jan 28, 2003Advanced Cardiovascular Systems, Inc.Catheter apparatus for treating occluded vessels and filtering embolic debris and method of use
US6537294 *Oct 17, 2000Mar 25, 2003Advanced Cardiovascular Systems, Inc.Delivery systems for embolic filter devices
US6540768 *Feb 9, 2000Apr 1, 2003Cordis CorporationVascular filter system
US6544279 *Aug 9, 2000Apr 8, 2003Incept, LlcVascular device for emboli, thrombus and foreign body removal and methods of use
US6554849 *Sep 11, 2000Apr 29, 2003Cordis CorporationIntravascular embolization device
US6558405 *Aug 29, 2000May 6, 2003Advanced Cardiovascular Systems, Inc.Embolic filter
US6843798 *Feb 27, 2002Jan 18, 2005Ev3 Inc.Slideable vascular filter
US7163549 *Feb 11, 2003Jan 16, 2007Boston Scientific Scimed Inc.Filter membrane manufacturing method
US7220271 *Jan 30, 2003May 22, 2007Ev3 Inc.Embolic filters having multiple layers and controlled pore size
US20020072764 *Jun 25, 2001Jun 13, 2002Concentric Medical, Inc.Systems, method and devices for removing obstructions from a blood vessel
US20030100918 *Nov 29, 2001May 29, 2003Duane Patrick J.Apparatus for temporary intraluminal protection
US20040093012 *Oct 17, 2002May 13, 2004Cully Edward H.Embolic filter frame having looped support strut elements
US20050055034 *Jul 26, 2004Mar 10, 2005Scimed Life Systems, Inc.Medical retrieval device
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7662166Feb 16, 2010Advanced Cardiocascular Systems, Inc.Sheathless embolic protection system
US7678129Mar 16, 2010Advanced Cardiovascular Systems, Inc.Locking component for an embolic filter assembly
US7678131Jan 19, 2007Mar 16, 2010Advanced Cardiovascular Systems, Inc.Single-wire expandable cages for embolic filtering devices
US7780694Oct 6, 2003Aug 24, 2010Advanced Cardiovascular Systems, Inc.Intravascular device and system
US7815660Oct 19, 2010Advanced Cardivascular Systems, Inc.Guide wire with embolic filtering attachment
US7842064Nov 30, 2010Advanced Cardiovascular Systems, Inc.Hinged short cage for an embolic protection device
US7867273Jan 11, 2011Abbott LaboratoriesEndoprostheses for peripheral arteries and other body vessels
US7879065Jan 26, 2007Feb 1, 2011Advanced Cardiovascular Systems, Inc.Locking component for an embolic filter assembly
US7892251Nov 12, 2003Feb 22, 2011Advanced Cardiovascular Systems, Inc.Component for delivering and locking a medical device to a guide wire
US7918820Sep 11, 2009Apr 5, 2011Advanced Cardiovascular Systems, Inc.Device for, and method of, blocking emboli in vessels such as blood arteries
US7931666Jan 18, 2010Apr 26, 2011Advanced Cardiovascular Systems, Inc.Sheathless embolic protection system
US7959646Jun 14, 2011Abbott Cardiovascular Systems Inc.Filter device for embolic protection systems
US7959647Dec 6, 2007Jun 14, 2011Abbott Cardiovascular Systems Inc.Self furling umbrella frame for carotid filter
US7972356Jul 5, 2011Abbott Cardiovascular Systems, Inc.Flexible and conformable embolic filtering devices
US7976560Jan 17, 2007Jul 12, 2011Abbott Cardiovascular Systems Inc.Embolic filtering devices
US8016854Sep 13, 2011Abbott Cardiovascular Systems Inc.Variable thickness embolic filtering devices and methods of manufacturing the same
US8029530Oct 4, 2011Abbott Cardiovascular Systems Inc.Guide wire with embolic filtering attachment
US8137377Apr 29, 2008Mar 20, 2012Abbott LaboratoriesEmbolic basket
US8142442Mar 27, 2012Abbott LaboratoriesSnare
US8177791May 15, 2012Abbott Cardiovascular Systems Inc.Embolic protection guide wire
US8216209Jul 10, 2012Abbott Cardiovascular Systems Inc.Method and apparatus for delivering an agent to a kidney
US8262689Sep 28, 2001Sep 11, 2012Advanced Cardiovascular Systems, Inc.Embolic filtering devices
US8308753Nov 13, 2012Advanced Cardiovascular Systems, Inc.Locking component for an embolic filter assembly
US8591540Sep 29, 2003Nov 26, 2013Abbott Cardiovascular Systems Inc.Embolic filtering devices
US8657849Feb 5, 2013Feb 25, 2014Cook Medical Technologies LlcEmbolic protection device and method of use
US8845583Jan 10, 2007Sep 30, 2014Abbott Cardiovascular Systems Inc.Embolic protection devices
US8945169Mar 14, 2006Feb 3, 2015Cook Medical Technologies LlcEmbolic protection device
US9138307Sep 14, 2007Sep 22, 2015Cook Medical Technologies LlcExpandable device for treatment of a stricture in a body vessel
US9259305Mar 31, 2005Feb 16, 2016Abbott Cardiovascular Systems Inc.Guide wire locking mechanism for rapid exchange and other catheter systems
US9398946Aug 13, 2015Jul 26, 2016Cook Medical Technologies LlcExpandable device for treatment of a stricture in a body vessel
US20030120303 *Dec 21, 2001Jun 26, 2003Boyle William J.Flexible and conformable embolic filtering devices
US20040167567 *Mar 23, 2001Aug 26, 2004Cano Gerald G.Method and apparatus for capturing objects beyond an operative site in medical procedures
US20050075663 *Sep 30, 2004Apr 7, 2005Boyle William J.Offset proximal cage for embolic filtering devices
US20060223386 *Mar 14, 2006Oct 5, 2006Dharmendra PalEmbolic protection device
US20090076593 *Sep 14, 2007Mar 19, 2009Cook IncorporatedExpandable device for treatment of a stricture in a body vessel
US20100274277 *Apr 27, 2009Oct 28, 2010Cook IncorporatedEmbolic protection device with maximized flow-through
US20140243881 *May 15, 2013Aug 28, 2014Transverse Medical, Inc.Catheter-based apparatuses and methods
Classifications
U.S. Classification606/200
International ClassificationA61M29/00, A61F2/01
Cooperative ClassificationA61F2002/018, A61F2230/005, A61F2230/0006, A61F2230/008, A61F2/01, A61F2/013
European ClassificationA61F2/01D, A61F2/01
Legal Events
DateCodeEventDescription
Nov 6, 2006ASAssignment
Owner name: BOSTON SCIENTIFIC SCIMED, INC., MINNESOTA
Free format text: CHANGE OF NAME;ASSIGNOR:SCIMED LIFE SYSTEMS, INC.;REEL/FRAME:018505/0868
Effective date: 20050101
Owner name: BOSTON SCIENTIFIC SCIMED, INC.,MINNESOTA
Free format text: CHANGE OF NAME;ASSIGNOR:SCIMED LIFE SYSTEMS, INC.;REEL/FRAME:018505/0868
Effective date: 20050101