WO2003049796A1 - Ureteral stents and related methods - Google Patents
Ureteral stents and related methods Download PDFInfo
- Publication number
- WO2003049796A1 WO2003049796A1 PCT/US2002/032115 US0232115W WO03049796A1 WO 2003049796 A1 WO2003049796 A1 WO 2003049796A1 US 0232115 W US0232115 W US 0232115W WO 03049796 A1 WO03049796 A1 WO 03049796A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- body portion
- fixation element
- medical device
- elongated body
- stent
- Prior art date
Links
- RELYPKCGIXTXRN-UHFFFAOYSA-N CC(C1CCCC1)=C Chemical compound CC(C1CCCC1)=C RELYPKCGIXTXRN-UHFFFAOYSA-N 0.000 description 1
- GDOPTJXRTPNYNR-UHFFFAOYSA-N CC1CCCC1 Chemical compound CC1CCCC1 GDOPTJXRTPNYNR-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
- A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
- A61M27/008—Implant devices for drainage of body fluids from one part of the body to another pre-shaped, for use in the urethral or ureteral tract
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
Definitions
- This invention generally relates to stents and more particularly to ureteral stents.
- Ureteral stents are used to create a pathway for urinary drainage from the kidney to the bladder in patients with ureteral obstruction or injury or to protect the integrity of the ureter in a variety of surgical manipulations.
- a number of clinical conditions can produce interruption in urine flow including, for example, intrinsic obstruction of the ureter due to tumor growth, stricture or stones, compression of the ureter due to extrinsic tumor growth, stone fragment impactation in the ureter following extracorporeal shock wave lithotripsy (ESWL), and ureteral procedures such as ureteroscopy and endopyelotomy.
- ESWL extracorporeal shock wave lithotripsy
- Stents may be used to treat or avoid obstructions of the ureter (such as ureteral stones or ureteral tumors) that disrupt the flow of urine from the corresponding kidney to the urinary bladder. Serious obstructions of the urinary tract may cause urine to back up into the kidney, threatening renal function. Ureteral stents may also be used after endoscopic inspection of the ureter. [0003] Ureteral stents typically are tubular in shape, terminating in two opposing ends: a kidney distal end and a urinary bladder proximal end.
- One or both of the ends of the stent may be coiled in a pigtail spiral or J-shape to prevent the upward and/or downward migration of the stent in the lumen of the ureter due, to day-to-day physical activity of the patient, for example.
- a kidney end coil is designed to retain the stent within the renal pelvis and to prevent stent migration down the ureter.
- the urinary bladder end coil is positioned in the bladder and is designed to prevent stent migration upward toward the kidney.
- the bladder end-coil is also used to aid in retrieval and removal of the stent.
- a ureteral stent assists in the flow of urine from the kidney to the urinary bladder.
- the region known as the ureteral vesical junction is a small area of the ureter that is immediately upstream, relative to normal urine flow, to the urinary bladder.
- the ureteral vesical junction has greater pain sensation relative to other regions of the ureter wall and kidneys and is a major source of patient discomfort when this region of the ureter is in contact with indwelling ureteral stents.
- Ureteral stents particularly the portion positioned in the ureter and proximal to the bladder, may produce adverse effects including hemorrhage, a continual urge to urinate, flank pain accompanying reflux of urine back up the ureter due to retrograde pressure when voiding, and trigone irritation resulting from chronic irritation due to the bladder anchoring features of the stent or resulting from intraoperative trauma inflicted from passage of the device in the ureter.
- stents may cause or contribute to significant patient discomfort and serious medical problems.
- the medical device for use within a body tract such as a duct, tube or vessel.
- the medical device has an elongated body portion defining a lumen and a proximal portion with a proximal end, a distal portion with a distal end, and a retention module disposed proximal to the proximal end of the elongated body portion.
- the retention module retains the proximal end of the body portion of the stent in the ureter just distal to the urinary bladder.
- the retention module further includes a fixation element attached to the elongated body portion by a tether connector.
- the tether connector reduces ureteral reflux and patient discomfort by permitting the ureteral orifice to contract more completely around the tether connector during voiding (urination) than is possible around the elongated body portion of the stent.
- the tether connector or the fixation element of the retention module may also be a suitable structure for grasping and removal of the stent from the body.
- the fixation element of the retention module is substantially buoyant.
- the buoyant fixation element may float on the urine within the bladder thereby minimizing contact of the fixation element with the trigone of the bladder.
- the fixation element of the retention module is of a size and configuration so as to prohibit the passage of said fixation element from the lumen of the urinary bladder into the lumen of the ureter and to allow the endoscopic introduction of the fixation element into the urinary bladder.
- the fixation element may be a planar spiral, a substantially helical spiral, or substantially spherical. In the substantially spherical form, the fixation element may have a diameter greater than the diameter of the lumen of the ureter.
- the proximal portion of the elongated body portion is substantially more compressible than remaining portions of the elongated body portion. In this embodiment, the proximal portion of the elongated body portion will collapse with pressure exerted on it by adjacent body tissue, by peristaltic motion, or by sphincter contraction, for example.
- the retention module may have multiple tether connectors and/or multiple fixation elements to facilitate urinary drainage during conditions of peri-renal or peri- ureteral edema, for example.
- the tether connector of the retention module may be substantially elastic to provide a strain relief function and to minimize longitudinal movement of the stent in the ureter in the direction of the kidney when there is movement of the kidney relative to the bladder, such as during normal respiration.
- the tether connector may be substantially rigid.
- the elongated body portion may be substantially rigid to prevent deformation during the insertion of the device through the ureter.
- a second aspect of the invention describes a method of treating at least partial ureteral obstruction of a patient.
- the method according to the invention includes the steps of providing a medical device with an elongated body portion defining a lumen and having a proximal end, a distal end, a proximal portion, a distal portion, a retention module attached to the proximal end of the elongated body portion by a tether connector, and inserting the medical device into the patient such that the fixation element is positioned in the bladder of the patient.
- FIG. IA is a plan view of a ureteral stent according to one embodiment of the invention.
- FIG. IB is a cross-sectional view of the ureteral stent illustrated in FIG. 1 A, taken along the line B-B.
- FIG. IC is a cross-sectional view of the ureteral stent illustrated in FIG. IA, taken along the line C-C
- FIG. ID is a cross-sectional view of the ureteral stent illustrated in FIG. 1 A, taken along the line A-A.
- FIG. IE illustrates the ureteral stent with a lumen having an oval cross-section according to one embodiment of the invention.
- FIG. IF illustrates the ureteral stent with a lumen having a polygonal cross-section according to one embodiment of the invention.
- FIG. 1G illustrates the ureteral stent with a lumen having a D-shaped cross-section according to one embodiment of the invention.
- FIG. 1H illustrates the ureteral stent with a lumen having a crescent-shaped cross-section according to one embodiment of the invention.
- FIG. II illustrates the ureteral stent with a lumen having a rectangular- cross-section according to one embodiment of the invention.
- FIG. 2 illustrates a clinical application of a ureteral stent according to the invention.
- FIGS. 3A-3C illustrate enlarged views of embodiments of the retention module of proximal portion of the stent according to the invention.
- FIGS. 4A-4C illustrate various embodiments of the distal portion of the stent according to the invention. Description
- This invention generally concerns a drainage device that, when positioned within a body tract such as a duct, tube, or vessel of a mammal, assists in reducing fluid retention with minimal patient discomfort.
- a body tract such as a duct, tube, or vessel of a mammal
- the invention is described here in the context of draining urine from the urinary tract such as a kidney, through a ureter, and into the urinary bladder.
- the invention is applicable to any situation that requires drainage of fluid from any site within the body.
- Application of the invention also applies to body sites in the body other than the urinary tract such as, for example, drainage from the gall bladder, or other biliary structures, to the duodenum.
- a medical device for example, a stent 5
- the stent 5 includes an elongated tubular body portion 10, a retention module 15, a mid-portion 21, a proximal portion 18 terminating in a proximal drainage end 35, and a distal portion 40 terminating in a distal drainage end 50.
- the retention module 15 is attached to the proximal drainage end 35 at an attachment site 20 and includes a fixation element 30 and a tether connector 25.
- the length of the elongated body portion 10 ranges between about 18 cm to 30 cm, preferably about 18 cm to 20 cm.
- the body portion 10 of the ureteral stent 5 includes at least one lumen, such as lumen 12 illustrated, for example, in FIG. ID.
- the elongated body portion 10 has an outside diameter of at least about 1.6 mm to3.3 mm, preferably 2 mm (or French size 6).
- the thickness of a wall 17 of the elongated body portion 10 is at least about 0.05 mm to 0.35 mm, preferably about 0.2 mm.
- the stent 5 may be constructed from biocompatible plastics or polymers including polytetrafluoroethylene (PTFE), silicone polyurethane, polyurethane plastics, polyethylene plastics, and thermoplastics, for example.
- PTFE polytetrafluoroethylene
- the elongated body portion 10 of the stent 5 has one or more openings 19 which may be, for example, holes, pores, slits, or apertures, through the wall 17 of the stent 5.
- the openings 19 allow fluidic communication between the outer surface of the stent 5 with the lumen 12 defined by the wall 17 of the ureter, for example.
- the elongated body portion 10 has a cross-sectional area as shown in, for example, FIG ID.
- the wall thickness at the proximal portion 18 of the elongated body portion 10 of stent 5 is reduced, i.e., thinner relative to the thickness of the wall 17 of the other portions of the elongated body portion 10, for example, the mid-portion 21 illustrated in FIG. ID.
- the wall 17 is thinner in the proximal portion 18 for the purpose of making the proximal portion 18 more compressible or collapsible relative to at least the mid portion 21 of the elongated body portion 10.
- the collapsible wall 17 is compressible such that the wall 17 of the stent 5 in the proximal portion 18 will collapse with pressure exerted on it by adjacent body tissue, by peristaltic motion, or by sphincter contraction, for example.
- the collapsible wall 17 in the proximal portion 18 is constructed from one or more biocompatible plastics or polymers including, for example, polytetrafluoroethylene (PTFE), silicone, polyurethane, polyurethane plastics, polyethylene plastics, and thermoplastics and it has a thickness of less than 0.07 mm.
- PTFE polytetrafluoroethylene
- the proximal portion 18 of the stent 5 when the proximal portion 18 of the stent 5 is compressible or collapsible, chafing and irritation of the ureter 55 is less than with more rigid stents, thereby increasing the comfort level of the patient.
- a thinner wall 17 in the proximal portion 18 than in the other portions of the elongated body portion 10 normal drainage of urine through the stent 5 is facilitated while some resistance to retrograde reflux of urine toward the kidney is maintained.
- the wall 17 of the stent 5 may be sized and configured with a length sufficient to extend the whole length of the ureter 55 from the renal pelvis 95 through and into the urinary bladder 60.
- the wall 17 in the distal region 40 of the elongated body portion 10, for example, as illustrated in FIG. ID. is sufficiently thick to be generally resistant to deformation and crimping. Patency of the ureter 55 is maintained when the stent 5 is placed in the ureter 55 even when the ureter might otherwise be constricted due to enlargement of tissue surrounding the stent 5 or movement of the ureter 55 due to patient movement or peristaltic motions.
- the wall 17 of the distal region 40 of the elongated body portion 10 resists collapsing upon radial or lateral pressure by the surrounding body tissue or by longitudinal pressure exerted on the wall 17 during insertion of the stent 5 into the body cavity.
- a wall thickness of 0.05 to 0.35mm may be used with materials such as silicone, polytetrafluoroethylene (PTFE), polyurethane plastics, and polyethylene plastics.
- PTFE polytetrafluoroethylene
- the cross-section of the lumen 12 of stent 5 may be any shape that allows the flow of liquid through the lumen 12 including round, oblong, elliptical, hexagonal, D-shaped, crescent-shaped and rectangular, for example.
- the elongated tubular body portion 10 of the stent 5 extends from the renal pelvis 95 of the kidney 90 in the lumen 44 of the ureter 55 to a terminus at the proximal drainage end 35 positioned upstream of the urinary bladder 60.
- the retention module 15, illustrated in FIGS. 3A-3C, extends from the proximal drainage end 35 of stent 5 through the intramural tunnel 80 of the urinary bladder 60 and through ureteral orifice 70 where the retention module 15 ends in the lumen 66 of the urinary bladder 60.
- the retention module 15 includes at least one fixation element 30 and one or more tether com ectors 25.
- the fixation element 30 is substantially spherical and has an outside diameter in the range of 3 to 10 mm, preferably 5 mm.
- fixation element 30 may include a variety of other shapes, for example, oval, tear-shaped, or peanut-shaped.
- the fixation element 30 of the retention module 15 is a suitable anchor such as, for example, a pigtail shape.
- Fixation element 30 is not limited to the foregoing and can be any shape that limits the passage of the fixation element 30 through the ureteral orifice 70.
- the fixation element 30 of the retention module is manufactured from a polymer that permits fixation element 30 to remain buoyant.
- fixation elements 30 include, for example, a copolymer such as PERCOFLUX ® (Medi-Tech, Inc.), C-FLEX ® (Xomed-Trease, Inc.), FLEXIMATM, or a high density polyethylene or PTFE such as TEFLON ® (E.I. Du Pont De Nemours and Company, Inc.) that permit fixation element 30 to remain buoyant.
- a copolymer such as PERCOFLUX ® (Medi-Tech, Inc.), C-FLEX ® (Xomed-Trease, Inc.), FLEXIMATM, or a high density polyethylene or PTFE such as TEFLON ® (E.I. Du Pont De Nemours and Company, Inc.) that permit fixation element 30 to remain buoyant.
- the fixation element 30 is buoyant relative to the specific gravity of the medium, such as urine, in which the fixation element 30 is suspended.
- fixation element 30 of the retention module 15 permits at least the fixation element 30 of the retention module 15 to remain buoyant in the lumen 66 of the urinary bladder 60 illustrated in FIG. 2.
- the fixation element 30 of retention module 15 is hollow and contains air, another gas, or a substance that adds buoyancy. The buoyancy of the fixation element 30 prevents the fixation element 30 from contacting and irritating the trigone 75 of the urinary bladder 60, illustrated in FIG. 2, thereby minimizing patient discomfort.
- retention module 15 is attached to elongated body portion 10 of stent 5 at attachment site 20 at the proximal drainage end 35 of stent 5.
- the tether connector 25 of the retention module 15 has a total length in the range of about 2 to 5 cm, preferably 3 cm, a diameter in the range of about 0.15 toO.23 mm , preferably 0.2 mm.
- the tether connector 25 is made of an elastomeric material, for example, HYTREL® (E.I. Du Pont De Nemours and Company, Inc.), silicone, or a thermoplastic elastomer (TPE), to provide strain relief.
- HYTREL® E.I. Du Pont De Nemours and Company, Inc.
- TPE thermoplastic elastomer
- the tether connector 25 as illustrated in FIG. IB is cord-like, lacking a lumen.
- the tether connector 25 may be substantially elastic and flexible or the tether connector 25 maybe substantially rigid and inflexible.
- the tether connector 25 may be integral with, or detachable from, the elongated body portion 10.
- tether connector 25 may be integrally formed as part of the proximal portion 18 of the body portion 10, the circumference of which is subsequently and substantially removed through an appropriate manufacturing process to yield tether connector 25.
- tether connector 25 is attached at attachment site 20 of stent 5 before replacement of the stent 5 in the body cavity.
- tether connector 25 is reversibly attached to elongated body portion 10 at attachment site 20 by any suitable means, such as, for example, by adhesive, or by mechanical connection.
- Suitable mechanical connections include, for example, threading and tying tether connector 25 through an opening (not shown) in the wall 17 of body portion 10, or forming tether connector 25 with a preformed shape such as a hook that connects with an opening or attachment site 20 associated with elongated body portion 10.
- the tether connector 25 is located within the intramural tunnel 80 of the urinary bladder 60.
- the length of the tether connector 25 is in the range of about 2 to 5 cm, preferably 3 cm.
- the ends of the tether connector 25 extend proximal and distal to the intramural tunnel 80.
- the tether connector 25 allows for anatomical variation among patients by compensating for variations in length of the intramural tunnel 80 from patient to patient.
- the fixation element 30 and/or the tether connector 25 may be grasped by an operator for easy removal of the stent 5 from its location in the body.
- the tether connector 25 and fixation element 30 of the retention module 15 permit the stent 5 to freely migrate longitudinally in the lumen 44 of the ureter 55 by a distance determined by the length of the tether connector 25.
- the tether connector 25 provides resistance to upward movement of stent 5 in the direction of the kidney 90 during movement of the kidneys caused by respiration, peristalsis or other voluntary or involuntary activity of the patient.
- the migration of the stent 5 by a fixed distance that corresponds to the length of the tether connector 25 minimizes the irritation and patient discomfort that can be caused by conventional stent anchoring elements that substantially fix the stent 5 in one position in the ureter 55 and do not permit the stent 5 to migrate with body movements.
- the tether connector 25 extends from the proximal end 35 of the stent 5 and has a smaller diameter than the elongated body portion 10. Because of its small diameter, tether connector 25 minimizes ureteral reflux, (i.e., flow of urine back up the ureter toward the kidney during voiding) because the intramural tunnel 80 of the urinary bladder 60 is collapsed around the small diameter tether connector 25 when the urinary bladder contracts during voiding. Tether connector 25 also minimizes patient discomfort associated with obstructions in the ureteral orifice 70.
- the number, size and configuration of fixation elements 30, as described below, may be customized to accommodate the migration-prevention requirements of the particular stent to be implanted in the patient's body.
- the retention module 15 includes a plurality of tether connectors 25 attached to the attachment site 20 of the elongated body portion 10.
- the plurality of tether connectors 25 facilitates urinary drainage through the intramural tunnel 80 of the urinary bladder 60, shown in FIG. 2 under numerous pathological conditions including, for example, swelling of the tissue in and around intramural tunnel 80 caused by edema induced by trauma during insertion of the stent 5.
- the combined action of the plurality of tether connectors 25 permits wicking of urine to the urinary bladder 60 but reduces urine reflux from the urinary bladder 60 retrograde to the ureter 55.
- at least one tether connector 25 is attached to the fixation element 30.
- more than one multiple fixation element 30 may be attached to each of the tether comiectors 25.
- FIGS. 4A-4C depict an enlarged view of the various embodiments of distal portion 40.
- the stent 5 includes a kidney retention anchor or pigtail 45 at the distal portion 40.
- the pigtail 45 is formed by bending the distal portion 40 of the stent 5 into a planar or substantially planar spiral.
- the pigtail 45 is shown having one of a variety of possible configurations that serve to retain the stent 5 in the renal pelvis 95 of the kidney 90.
- the pigtail 45 is formed by shaping the distal portion 40 of the stent 5 into a spiral planar coil formed with a multiplicity of turns wound concentrically within the same plane.
- the pigtail 45 is formed by shaping the distal portion 40 of the stent 5 into a helical coil formed with at least one wound turn.
- the pigtail 45 is formed at the distal portion 40 of the stent 5 with at least one helical coil further comprises a plurality of openings 19 arranged in various patterns.
- stent 5 is deployed by an operator in the ureter 55, by inserting a relatively rigid wire guide (not shown) into lumen 12 of the stent 5 from the proximal portion 18 of the stent 5 to the distal portion 40 of the stent 5.
- the wire guide straightens out the spiral pigtail 45 prior to insertion of the stent 5 into the patient's body.
- the wire guide, together with the stent 5, is inserted by an operator either endoscopically or transurethrally into the urinary bladder 60.
- the stent 5 is advanced through one of the ureteral orifices 70 and along the lumen 44 of the ureter 55 via a pushing action until the distal portion 40 of the stent 5 is proximal to the renal pelvis 95.
- the wire guide is then withdrawn from the lumen 12 of the distal portion 40 of the stent 5 either endoscopically or transurethrally wherein the pigtail 45 returns to its former spiral shape within the renal pelvis 95.
- the spiral shape of pigtail 45 anchors the distal portion 40 thereby reducing longitudinal migration of the stent 5 away from the kidney 90 in the lumen 44 of the ureter 55.
- the tether connector 25 extends through the intramural tunnel 80 to the fixation element 30 and terminates in the lumen 66 of the urinary bladder 60.
- the stent 5 and the retention module 15 are selected according to the clinical needs of the patient and must be attached to the proximal portion 18 of stent 5 before the insertion of stent 5 into a body cavity.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002332068A AU2002332068A1 (en) | 2001-12-11 | 2002-10-11 | Ureteral stents and related methods |
EP02769008A EP1453565A1 (en) | 2001-12-11 | 2002-10-11 | Ureteral stents and related methods |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/014,678 | 2001-12-11 | ||
US10/014,678 US7041139B2 (en) | 2001-12-11 | 2001-12-11 | Ureteral stents and related methods |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003049796A1 true WO2003049796A1 (en) | 2003-06-19 |
Family
ID=21766988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2002/032115 WO2003049796A1 (en) | 2001-12-11 | 2002-10-11 | Ureteral stents and related methods |
Country Status (4)
Country | Link |
---|---|
US (1) | US7041139B2 (en) |
EP (1) | EP1453565A1 (en) |
AU (1) | AU2002332068A1 (en) |
WO (1) | WO2003049796A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004087248A1 (en) * | 2003-03-26 | 2004-10-14 | Scimed Life Systems, Inc. | Self-retaining stent |
US7722677B2 (en) | 2005-05-11 | 2010-05-25 | Boston Scientific Scimed, Inc. | Ureteral stent with conforming retention structure |
Families Citing this family (129)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2001285078A1 (en) | 2000-08-18 | 2002-03-04 | Atritech, Inc. | Expandable implant devices for filtering blood flow from atrial appendages |
US20040087886A1 (en) | 2002-10-30 | 2004-05-06 | Scimed Life Systems, Inc. | Linearly expandable ureteral stent |
JP4898447B2 (en) | 2003-10-14 | 2012-03-14 | プルーロームド インコーポレイテッド | Confinement of kidney stone fragments during lithotripsy |
US20050137694A1 (en) | 2003-12-23 | 2005-06-23 | Haug Ulrich R. | 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 |
US8182528B2 (en) | 2003-12-23 | 2012-05-22 | Sadra Medical, Inc. | Locking heart valve anchor |
US9526609B2 (en) | 2003-12-23 | 2016-12-27 | Boston Scientific Scimed, Inc. | Methods and apparatus for endovascularly replacing a patient's heart valve |
US7329279B2 (en) | 2003-12-23 | 2008-02-12 | Sadra Medical, Inc. | Methods and apparatus for endovascularly replacing a patient's heart valve |
US8603160B2 (en) | 2003-12-23 | 2013-12-10 | Sadra Medical, Inc. | Method of using a retrievable heart valve anchor with a sheath |
US8579962B2 (en) | 2003-12-23 | 2013-11-12 | Sadra Medical, Inc. | Methods and apparatus for performing valvuloplasty |
CN100589779C (en) | 2003-12-23 | 2010-02-17 | 萨德拉医学公司 | Repositionable heart valve |
US7748389B2 (en) | 2003-12-23 | 2010-07-06 | Sadra Medical, Inc. | Leaflet engagement elements and methods for use thereof |
US8828078B2 (en) | 2003-12-23 | 2014-09-09 | 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 |
US7959666B2 (en) | 2003-12-23 | 2011-06-14 | Sadra Medical, Inc. | Methods and apparatus for endovascularly replacing a heart valve |
US9005273B2 (en) | 2003-12-23 | 2015-04-14 | Sadra Medical, Inc. | Assessing the location and performance of replacement heart valves |
US7824443B2 (en) * | 2003-12-23 | 2010-11-02 | Sadra Medical, Inc. | Medical implant delivery and deployment tool |
US8343213B2 (en) | 2003-12-23 | 2013-01-01 | 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 |
US7780725B2 (en) | 2004-06-16 | 2010-08-24 | Sadra Medical, Inc. | Everting heart valve |
US20050137687A1 (en) | 2003-12-23 | 2005-06-23 | Sadra Medical | Heart valve anchor and method |
US8840663B2 (en) | 2003-12-23 | 2014-09-23 | Sadra Medical, Inc. | Repositionable heart valve method |
US7824442B2 (en) * | 2003-12-23 | 2010-11-02 | 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 |
US7381219B2 (en) | 2003-12-23 | 2008-06-03 | Sadra Medical, Inc. | Low profile heart valve and delivery system |
GB2413769B (en) * | 2004-04-06 | 2007-02-21 | Medevert Ltd | Ureteric stents |
GB0409031D0 (en) * | 2004-04-23 | 2004-05-26 | Ravi P K | Stents |
US20050240278A1 (en) * | 2004-04-26 | 2005-10-27 | Peter Aliski | Stent improvements |
US7507218B2 (en) * | 2004-04-26 | 2009-03-24 | Gyrus Acmi, Inc. | Stent with flexible elements |
US20050240141A1 (en) * | 2004-04-26 | 2005-10-27 | Peter Aliski | Stent kidney curl improvements |
US7470247B2 (en) * | 2004-04-26 | 2008-12-30 | Gyrus Acmi, Inc. | Ureteral stent |
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 |
US7962208B2 (en) | 2005-04-25 | 2011-06-14 | Cardiac Pacemakers, Inc. | Method and apparatus for pacing during revascularization |
EP2857041B9 (en) | 2005-05-02 | 2018-02-14 | Genzyme Corporation | Non-lithotripsic kidney-stone therapy |
EP1898834A4 (en) * | 2005-06-20 | 2010-12-15 | Abbeymoor Medical Inc | Self-adjusting endourethral device&methods of use |
WO2007001992A2 (en) * | 2005-06-21 | 2007-01-04 | Regents Of The University Of Minnesota | Ureteral stent with axial and radial variability |
US7815674B1 (en) * | 2005-07-27 | 2010-10-19 | Ragazzo John R | Self-expanding stent system |
US7712606B2 (en) | 2005-09-13 | 2010-05-11 | Sadra Medical, Inc. | Two-part package for medical implant |
US20070213813A1 (en) | 2005-12-22 | 2007-09-13 | Symetis Sa | Stent-valves for valve replacement and associated methods and systems for surgery |
EP1988851A2 (en) | 2006-02-14 | 2008-11-12 | Sadra Medical, Inc. | Systems and methods for delivering a medical implant |
US9265865B2 (en) * | 2006-06-30 | 2016-02-23 | Boston Scientific Scimed, Inc. | Stent having time-release indicator |
US20080051911A1 (en) * | 2006-08-23 | 2008-02-28 | Wilson-Cook Medical Inc. | Stent with antimicrobial drainage lumen surface |
BRPI0717325A2 (en) * | 2006-09-29 | 2013-10-29 | Pluromed Inc | METHODS TO PREVENT RETROPOPULSION OF SOLIDIFICATIONS AND FRAGMENTS DURING LITOTRIPSY |
AU2007349205B2 (en) * | 2006-10-16 | 2013-05-23 | Cook Medical Technologies Llc | Nonexpandable stent |
WO2008092013A1 (en) * | 2007-01-26 | 2008-07-31 | Wilson-Cook Medical Inc. | Implantable drainage device with planar dual curved portion |
US7896915B2 (en) | 2007-04-13 | 2011-03-01 | Jenavalve Technology, Inc. | Medical device for treating a heart valve insufficiency |
US8956419B2 (en) | 2007-05-14 | 2015-02-17 | Boston Scientific Scimed, Inc. | Open lumen stent |
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 |
CN102245256B (en) | 2008-10-10 | 2014-07-23 | 萨德拉医学公司 | Medical devices and delivery systems for delivering medical devices |
US8414656B2 (en) | 2008-12-05 | 2013-04-09 | Boston Scientific Scimed, Inc. | Porous ureteral stent |
US8192500B2 (en) | 2008-12-12 | 2012-06-05 | Boston Scientific Scimed, Inc. | Ureteral stent |
US8512272B2 (en) | 2008-12-22 | 2013-08-20 | Boston Scientific Scimed, Inc. | Ureteral stent |
JP2013526388A (en) | 2010-05-25 | 2013-06-24 | イエナバルブ テクノロジー インク | Artificial heart valve, and transcatheter delivery prosthesis comprising an artificial heart valve and a stent |
CN106073946B (en) | 2010-09-10 | 2022-01-04 | 西美蒂斯股份公司 | Valve replacement device, delivery device for a valve replacement device and method of producing a valve replacement device |
EP2688516B1 (en) | 2011-03-21 | 2022-08-17 | Cephea Valve Technologies, Inc. | Disk-based valve apparatus |
EP2520251A1 (en) | 2011-05-05 | 2012-11-07 | Symetis SA | Method and Apparatus for Compressing Stent-Valves |
CA2835893C (en) | 2011-07-12 | 2019-03-19 | Boston Scientific Scimed, Inc. | Coupling system for medical devices |
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 |
US9510945B2 (en) | 2011-12-20 | 2016-12-06 | Boston Scientific Scimed Inc. | Medical device handle |
US9277993B2 (en) | 2011-12-20 | 2016-03-08 | Boston Scientific Scimed, Inc. | Medical device delivery systems |
US10172708B2 (en) | 2012-01-25 | 2019-01-08 | Boston Scientific Scimed, Inc. | Valve assembly with a bioabsorbable gasket and a replaceable valve implant |
CN102580226A (en) * | 2012-03-05 | 2012-07-18 | 中国人民解放军第三军医大学第二附属医院 | Medical traction wire and ureteral stent comprising same |
ES2847887T3 (en) * | 2012-05-19 | 2021-08-04 | Taris Biomedical Llc | Implantable urological device with enhanced recovery characteristic |
US9750621B2 (en) * | 2012-06-08 | 2017-09-05 | University Hospitals Cleveland Medical Center | Ureteral stent for placement in a kidney and bladder |
WO2013185133A1 (en) | 2012-06-08 | 2013-12-12 | University Hospitals Health System, Inc. | Stent pusher assembly |
US9883941B2 (en) | 2012-06-19 | 2018-02-06 | Boston Scientific Scimed, Inc. | Replacement heart valve |
CN102743244B (en) * | 2012-06-29 | 2015-04-08 | 中国人民解放军第三军医大学第二附属医院 | Ureter bracket pipe with iron net line device |
US9095457B2 (en) * | 2012-07-20 | 2015-08-04 | Cook Medical Technologies Llc | Anti-migration biliary stent and method |
US9254203B2 (en) | 2012-08-20 | 2016-02-09 | Boston Scientific Scimed, Inc. | Delivery device |
DE202012011024U1 (en) | 2012-11-16 | 2013-03-04 | Urotech Medizinische Technologie Gmbh | Ureteral stent |
US8870948B1 (en) | 2013-07-17 | 2014-10-28 | Cephea Valve Technologies, Inc. | System and method for cardiac valve repair and replacement |
CN105491978A (en) | 2013-08-30 | 2016-04-13 | 耶拿阀门科技股份有限公司 | Radially collapsible frame for a prosthetic valve and method for manufacturing such a frame |
EP3129097B1 (en) * | 2014-04-10 | 2022-03-02 | C. R. Bard, Inc. | Ureteral stents |
US9901445B2 (en) | 2014-11-21 | 2018-02-27 | Boston Scientific Scimed, Inc. | Valve locking mechanism |
US9439757B2 (en) | 2014-12-09 | 2016-09-13 | Cephea Valve Technologies, Inc. | Replacement cardiac valves and methods of use and manufacture |
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 |
US10285809B2 (en) | 2015-03-06 | 2019-05-14 | Boston Scientific Scimed Inc. | TAVI anchoring assist device |
US10426617B2 (en) | 2015-03-06 | 2019-10-01 | Boston Scientific Scimed, Inc. | Low profile valve locking mechanism and commissure assembly |
US10080652B2 (en) | 2015-03-13 | 2018-09-25 | Boston Scientific Scimed, Inc. | Prosthetic heart valve having an improved tubular seal |
US10582843B2 (en) | 2015-03-24 | 2020-03-10 | Corning Incorporated | Illuminating surgical device having light diffusing fiber |
US10709555B2 (en) | 2015-05-01 | 2020-07-14 | Jenavalve Technology, Inc. | Device and method with reduced pacemaker rate in heart valve replacement |
WO2016183526A1 (en) | 2015-05-14 | 2016-11-17 | 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 |
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 |
CN108136163B (en) | 2015-07-20 | 2021-05-04 | 斯卓特凯系统有限责任公司 | Ureteral and bladder catheters and methods of introducing negative pressure to increase renal perfusion |
US11229771B2 (en) | 2015-07-20 | 2022-01-25 | Roivios Limited | Percutaneous ureteral catheter |
US11541205B2 (en) | 2015-07-20 | 2023-01-03 | Roivios Limited | Coated urinary catheter or ureteral stent and method |
US10926062B2 (en) | 2015-07-20 | 2021-02-23 | Strataca Systems Limited | Ureteral and bladder catheters and methods of inducing negative pressure to increase renal perfusion |
US10493232B2 (en) | 2015-07-20 | 2019-12-03 | Strataca Systems Limited | Ureteral catheters, bladder catheters, systems, kits and methods for inducing negative pressure to increase renal function |
US10918827B2 (en) | 2015-07-20 | 2021-02-16 | Strataca Systems Limited | Catheter device and method for inducing negative pressure in a patient's bladder |
US10512713B2 (en) | 2015-07-20 | 2019-12-24 | Strataca Systems Limited | Method of removing excess fluid from a patient with hemodilution |
US11040172B2 (en) | 2015-07-20 | 2021-06-22 | Strataca Systems Limited | Ureteral and bladder catheters and methods of inducing negative pressure to increase renal perfusion |
US10179041B2 (en) | 2015-08-12 | 2019-01-15 | Boston Scientific Scimed Icn. | Pinless release mechanism |
US10136991B2 (en) | 2015-08-12 | 2018-11-27 | Boston Scientific Scimed Inc. | Replacement heart valve implant |
US10779940B2 (en) | 2015-09-03 | 2020-09-22 | Boston Scientific Scimed, Inc. | Medical device handle |
CN105194790A (en) * | 2015-10-10 | 2015-12-30 | 江苏耀华医疗器械科技有限公司 | Ureter support tube |
US10342660B2 (en) | 2016-02-02 | 2019-07-09 | Boston Scientific Inc. | Tensioned sheathing aids |
WO2017192145A1 (en) | 2016-05-06 | 2017-11-09 | University Hospitals Health Systems, Inc. | Ureteral stent |
WO2017193120A1 (en) * | 2016-05-06 | 2017-11-09 | University Hospitals Health Systems, Inc. | Ureteral stent |
US10583005B2 (en) | 2016-05-13 | 2020-03-10 | Boston Scientific Scimed, Inc. | Medical device handle |
EP3454795B1 (en) | 2016-05-13 | 2023-01-11 | JenaValve Technology, Inc. | Heart valve prosthesis delivery system 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 |
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 |
CR20190381A (en) | 2017-01-23 | 2019-09-27 | Cephea Valve Tech Inc | Replacement mitral valves |
AU2018203053B2 (en) | 2017-01-23 | 2020-03-05 | Cephea Valve Technologies, Inc. | Replacement mitral valves |
CN110392557A (en) | 2017-01-27 | 2019-10-29 | 耶拿阀门科技股份有限公司 | Heart valve simulation |
EP3634311A1 (en) | 2017-06-08 | 2020-04-15 | Boston Scientific Scimed, Inc. | Heart valve implant commissure support structure |
US10881842B2 (en) * | 2017-07-28 | 2021-01-05 | Gyrus Acmi, Inc. | Ureteral stent |
EP3661458A1 (en) | 2017-08-01 | 2020-06-10 | Boston Scientific Scimed, Inc. | Medical implant locking mechanism |
EP3668449A1 (en) | 2017-08-16 | 2020-06-24 | Boston Scientific Scimed, Inc. | Replacement heart valve commissure assembly |
WO2019144071A1 (en) | 2018-01-19 | 2019-07-25 | 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 |
US11439732B2 (en) | 2018-02-26 | 2022-09-13 | Boston Scientific Scimed, Inc. | Embedded radiopaque marker in adaptive seal |
US11229517B2 (en) | 2018-05-15 | 2022-01-25 | Boston Scientific Scimed, Inc. | Replacement heart valve commissure assembly |
US11241310B2 (en) | 2018-06-13 | 2022-02-08 | Boston Scientific Scimed, Inc. | Replacement heart valve delivery device |
US20200054867A1 (en) * | 2018-08-14 | 2020-02-20 | NXT Biomedical | System And Method For Treatment Via Bodily Drainage Or Injection |
WO2020123486A1 (en) | 2018-12-10 | 2020-06-18 | Boston Scientific Scimed, Inc. | Medical device delivery system including a resistance member |
US20220125570A1 (en) * | 2019-02-08 | 2022-04-28 | Hackensack University Medical Center | Ureteral stent and retrieval means |
US11439504B2 (en) | 2019-05-10 | 2022-09-13 | Boston Scientific Scimed, Inc. | Replacement heart valve with improved cusp washout and reduced loading |
US11865270B2 (en) | 2020-01-16 | 2024-01-09 | Starling Medical, Inc. | Bodily fluid management system |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5380270A (en) * | 1990-12-07 | 1995-01-10 | Willy Rusch Ag | Ureteral catheter |
US5647843A (en) * | 1996-05-24 | 1997-07-15 | Vance Products Incorporated | Anti-reflux ureteral stent |
WO1999058083A1 (en) * | 1998-05-08 | 1999-11-18 | Taylor William N | Stent placement and retrieval |
WO2000051521A1 (en) * | 1999-03-02 | 2000-09-08 | Scimed Life Systems, Inc. | Medical device with one or more helical coils |
WO2000066032A1 (en) * | 1999-04-30 | 2000-11-09 | Applied Medical Resources Corporation | Improved ureteral stent system apparatus and method |
EP1062920A1 (en) * | 1999-06-22 | 2000-12-27 | ContiCare Medical, Inc. | Self-cleansing bladder drainage device |
Family Cites Families (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3890977A (en) | 1974-03-01 | 1975-06-24 | Bruce C Wilson | Kinetic memory electrodes, catheters and cannulae |
US4307723A (en) | 1978-04-07 | 1981-12-29 | Medical Engineering Corporation | Externally grooved ureteral stent |
US4212304A (en) | 1978-04-07 | 1980-07-15 | Medical Engineering Corp. | Uretheral catheter stent |
US4334327A (en) | 1979-12-21 | 1982-06-15 | University Of Utah | Ureteral prosthesis |
US4416267A (en) * | 1981-12-10 | 1983-11-22 | Garren Lloyd R | Method and apparatus for treating obesity |
US4531933A (en) | 1982-12-07 | 1985-07-30 | C. R. Bard, Inc. | Helical ureteral stent |
US4568338A (en) | 1983-09-22 | 1986-02-04 | C. R. Bard, Inc. | Preformed catheter |
US4610657A (en) | 1984-01-03 | 1986-09-09 | Medical Engineering Corporation | Ureteral stent |
US4643716A (en) | 1984-09-26 | 1987-02-17 | The Kendall Company | Multi-size ureteral stent |
US4580568A (en) | 1984-10-01 | 1986-04-08 | Cook, Incorporated | Percutaneous endovascular stent and method for insertion thereof |
US4671795A (en) | 1984-11-19 | 1987-06-09 | Mulchin William L | Permanent/retrievable ureteral catheter |
US4790810A (en) | 1985-11-04 | 1988-12-13 | American Medical Systems, Inc. | Ureteral connector stent |
US4820262A (en) | 1985-12-12 | 1989-04-11 | Medical Engineering Corporation | Ureteral stent |
US4846814A (en) | 1986-01-16 | 1989-07-11 | Sherwood Medical Company | Non-whip catheter |
US4713049A (en) | 1986-08-05 | 1987-12-15 | Medical Engineering Corporation | Ureteral stent kit |
US4738667A (en) | 1986-11-04 | 1988-04-19 | Galloway Niall T M | Preformed catheter assembly |
US4762128A (en) | 1986-12-09 | 1988-08-09 | Advanced Surgical Intervention, Inc. | Method and apparatus for treating hypertrophy of the prostate gland |
SE459473B (en) | 1987-02-13 | 1989-07-10 | Stig Bengmark | HOSE DEVICE, SPECIFICALLY BEFORE ADMINISTRATION OF FOODS DIRECTLY IN THE GAS |
US4813925A (en) | 1987-04-21 | 1989-03-21 | Medical Engineering Corporation | Spiral ureteral stent |
US4787884A (en) | 1987-09-01 | 1988-11-29 | Medical Engineering Corporation | Ureteral stent guidewire system |
US4874360A (en) | 1988-07-01 | 1989-10-17 | Medical Engineering Corporation | Ureteral stent system |
US4931037A (en) | 1988-10-13 | 1990-06-05 | International Medical, Inc. | In-dwelling ureteral stent and injection stent assembly, and method of using same |
US5116309A (en) | 1989-01-25 | 1992-05-26 | Coll Milton E | Ureteral stent-catheter system having varying diameter stent |
US5364340A (en) | 1989-01-25 | 1994-11-15 | Coll Milton E | Ureteral stent-catheter having varying internal diameter and method of use |
US5221253A (en) | 1989-01-25 | 1993-06-22 | Coll Milton E | Urological stent-catheter system having varing diameter stent |
US4950228A (en) | 1990-01-10 | 1990-08-21 | Knapp Jr Peter M | Ureteral stent |
DK0441516T3 (en) | 1990-02-08 | 1995-06-12 | Howmedica | Inflatable catheter |
US4990133A (en) | 1990-04-02 | 1991-02-05 | Tenax-Glynn Corporation | Removable J-J ureteral stent |
US5052998A (en) | 1990-04-04 | 1991-10-01 | Zimmon David S | Indwelling stent and method of use |
US5078736A (en) | 1990-05-04 | 1992-01-07 | Interventional Thermodynamics, Inc. | Method and apparatus for maintaining patency in the body passages |
US5176625A (en) | 1990-10-25 | 1993-01-05 | Brisson A Glen | Stent for ureter |
US5141502A (en) | 1991-08-28 | 1992-08-25 | Macaluso Jr Joseph N | Ureteral stent |
US5269802A (en) | 1991-09-10 | 1993-12-14 | Garber Bruce B | Prostatic stent |
US5662713A (en) | 1991-10-09 | 1997-09-02 | Boston Scientific Corporation | Medical stents for body lumens exhibiting peristaltic motion |
US5282784A (en) | 1991-10-09 | 1994-02-01 | Mentor Corporation | Injection stent system |
US5176626A (en) | 1992-01-15 | 1993-01-05 | Wilson-Cook Medical, Inc. | Indwelling stent |
US5683448A (en) | 1992-02-21 | 1997-11-04 | Boston Scientific Technology, Inc. | Intraluminal stent and graft |
US5224953A (en) | 1992-05-01 | 1993-07-06 | The Beth Israel Hospital Association | Method for treatment of obstructive portions of urinary passageways |
DE4220295A1 (en) | 1992-06-20 | 1993-12-23 | Angiomed Ag | Device for correcting the position of a stent |
US5306294A (en) | 1992-08-05 | 1994-04-26 | Ultrasonic Sensing And Monitoring Systems, Inc. | Stent construction of rolled configuration |
US5964744A (en) | 1993-01-04 | 1999-10-12 | Menlo Care, Inc. | Polymeric medical device systems having shape memory |
US5599291A (en) | 1993-01-04 | 1997-02-04 | Menlo Care, Inc. | Softening expanding ureteral stent |
FR2701648B1 (en) | 1993-02-19 | 1995-03-31 | Marian Devonec | Prosthesis intended for the treatment of a light or natural way, in particular endo-urethral prosthesis. |
US5523092A (en) | 1993-04-14 | 1996-06-04 | Emory University | Device for local drug delivery and methods for using the same |
US5401257A (en) | 1993-04-27 | 1995-03-28 | Boston Scientific Corporation | Ureteral stents, drainage tubes and the like |
US5507769A (en) | 1994-10-18 | 1996-04-16 | Stentco, Inc. | Method and apparatus for forming an endoluminal bifurcated graft |
DE4418336A1 (en) | 1994-05-26 | 1995-11-30 | Angiomed Ag | Stent for widening and holding open receptacles |
EP1051953A3 (en) | 1994-06-17 | 2001-02-28 | Terumo Kabushiki Kaisha | Indwelling stent and the method for manufacturing the same |
US5531741A (en) | 1994-08-18 | 1996-07-02 | Barbacci; Josephine A. | Illuminated stents |
US6110212A (en) | 1994-11-15 | 2000-08-29 | Kenton W. Gregory | Elastin and elastin-based materials |
US5755722A (en) | 1994-12-22 | 1998-05-26 | Boston Scientific Corporation | Stent placement device with medication dispenser and method |
US5514176A (en) | 1995-01-20 | 1996-05-07 | Vance Products Inc. | Pull apart coil stent |
US5681274A (en) | 1995-03-31 | 1997-10-28 | Boston Scientific Corporation | Variable length uretheral stent |
DK171865B1 (en) | 1995-09-11 | 1997-07-21 | Cook William Europ | Expandable endovascular stent |
US6676623B2 (en) * | 2001-05-04 | 2004-01-13 | Scimed Life Systems, Inc. | Drainage devices and methods |
EP0955954B1 (en) | 1996-01-05 | 2005-03-16 | Medtronic, Inc. | Expansible endoluminal prostheses |
DE69725120T2 (en) | 1996-03-07 | 2004-07-08 | Med Institute, Inc., West Lafayette | SPREADABLE STENT |
US6171298B1 (en) * | 1996-05-03 | 2001-01-09 | Situs Corporation | Intravesical infuser |
US5795319A (en) | 1997-03-07 | 1998-08-18 | Circon Corporation | Easily removable ureteral stent |
US5971967A (en) | 1997-08-19 | 1999-10-26 | Abbeymoor Medical, Inc. | Urethral device with anchoring system |
US6258098B1 (en) * | 1998-05-08 | 2001-07-10 | William N. Taylor | Stent placement and removal system |
US6764519B2 (en) * | 2000-05-26 | 2004-07-20 | Scimed Life Systems, Inc. | Ureteral stent |
-
2001
- 2001-12-11 US US10/014,678 patent/US7041139B2/en not_active Expired - Lifetime
-
2002
- 2002-10-11 AU AU2002332068A patent/AU2002332068A1/en not_active Abandoned
- 2002-10-11 WO PCT/US2002/032115 patent/WO2003049796A1/en active Search and Examination
- 2002-10-11 EP EP02769008A patent/EP1453565A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5380270A (en) * | 1990-12-07 | 1995-01-10 | Willy Rusch Ag | Ureteral catheter |
US5647843A (en) * | 1996-05-24 | 1997-07-15 | Vance Products Incorporated | Anti-reflux ureteral stent |
WO1999058083A1 (en) * | 1998-05-08 | 1999-11-18 | Taylor William N | Stent placement and retrieval |
WO2000051521A1 (en) * | 1999-03-02 | 2000-09-08 | Scimed Life Systems, Inc. | Medical device with one or more helical coils |
WO2000066032A1 (en) * | 1999-04-30 | 2000-11-09 | Applied Medical Resources Corporation | Improved ureteral stent system apparatus and method |
EP1062920A1 (en) * | 1999-06-22 | 2000-12-27 | ContiCare Medical, Inc. | Self-cleansing bladder drainage device |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004087248A1 (en) * | 2003-03-26 | 2004-10-14 | Scimed Life Systems, Inc. | Self-retaining stent |
US7357818B2 (en) | 2003-03-26 | 2008-04-15 | Boston Scientific Scimed, Inc. | Self-retaining stent |
US8057461B2 (en) | 2003-03-26 | 2011-11-15 | Boston Scientific Scimed, Inc. | Self-retaining stent |
US7722677B2 (en) | 2005-05-11 | 2010-05-25 | Boston Scientific Scimed, Inc. | Ureteral stent with conforming retention structure |
US8252065B2 (en) | 2005-05-11 | 2012-08-28 | Boston Scientific Scimed, Inc. | Ureteral stent with conforming retention structure |
Also Published As
Publication number | Publication date |
---|---|
US20030109930A1 (en) | 2003-06-12 |
US7041139B2 (en) | 2006-05-09 |
EP1453565A1 (en) | 2004-09-08 |
AU2002332068A1 (en) | 2003-06-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7041139B2 (en) | Ureteral stents and related methods | |
US8388691B2 (en) | Drainage devices | |
US6945950B2 (en) | Ureteral stent with small bladder tail(s) | |
US6676623B2 (en) | Drainage devices and methods | |
US8088170B2 (en) | Ureteral stent | |
US8845752B2 (en) | Ureteral stent for improved patient comfort | |
AU2004226434B2 (en) | Longitudinally expanding medical device | |
WO2003089038A1 (en) | Ureteral stent with end-effector and related methods | |
EP0859644B1 (en) | Ureteral stent with small bladder tail(s) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2002769008 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2002769008 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |
|
DPE2 | Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101) |