WO1998037834A1 - Kinetic stent - Google Patents
Kinetic stent Download PDFInfo
- Publication number
- WO1998037834A1 WO1998037834A1 PCT/US1998/000313 US9800313W WO9837834A1 WO 1998037834 A1 WO1998037834 A1 WO 1998037834A1 US 9800313 W US9800313 W US 9800313W WO 9837834 A1 WO9837834 A1 WO 9837834A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stent
- diameter
- distal
- tube
- tube end
- Prior art date
Links
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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
-
- 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
-
- 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
-
- 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
-
- 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
-
- 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
Definitions
- the present invention relates generally to stents for use in supporting and maintaining an open lumen within a body passage or vessel and, more particularly, to stents configurable between large and small diameters.
- Tubular prosthesis which are commonly referred to as stents, are used to reinforce or strengthen body passages or vessels. Occluded, collapsed, or compromised body passages, such as blood vessels, esophagus, tracheas, gastrointestinal tracts, bile ducts, ureters, and urethras, can all benefit from stents. These body passages can become occluded, collapsed, or compromised from disease, trauma, or from specific surgical procedures upon the wall of the body passage.
- Prior art stents typically comprise a length of plastic tubular material, having a number of side holes disposed along the length of the plastic tubular material.
- stents generally constructed in this manner. Each of these stents basically comprises a fixed diameter and, therefore, is nonresponsive to the specific diameter of a vessel.
- Self-expanding stents are disclosed is U.S. Patent Nos. 5,026,377 and 5,078,720, both issued to Burton et al., U.S. Patent No. 5,019,085 issued to Hillstead, U.S. Patent No. 4,969,458 issued to Wicktor, and U.S. Patent No.
- 5,507,767 issued to Maeda et al., discloses a self- expanding stent that employs a plurality of straight stainless steel wire sections, separating a plurality of bends, that may be adjusted and set to fit a particular anatomy or condition.
- U.S. Patent No. 5,476,505 issued to Limon discloses a coiled stent for introduction into a body passage at a first diameter and subsequent expansion within the body passage to a second diameter. This coiled stent relies on a procedure for holding a coil in a tightly wound condition during insertion of the coiled stent.
- U.S. Patent Nos. 5,078,720 and 5,026,377 issued to Burton et al. describe a combination of a self-expanding braided stent and an instrument for deployment or retraction of the stent.
- the instrument for deployment or retraction of the stent includes a tubular sleeve, which surrounds and compresses the braided stent.
- This surrounding tubular structure requires that an additional wall thickness, corresponding to a thickness of the tubular sleeve, be added to the device during placement. Consequently, a shortcoming of the Burton et al. invention is that the placement of the device is the time when the lowest profile or smallest diameter is required.
- the stent of the present invention can be introduced into a body passage or vessel in a low profile or small diameter and, subsequently, expanded to a large diameter.
- the stent can be inserted into the body passage over a guidewire or small gauge catheter in the small diameter configuration. After the guidewire or small gauge catheter is removed, the stent is transformed into the large diameter configuration, which stimulates the reactive nature of the body passage to thereby develop or maintain a patent lumen.
- the stent is able to provide maximum communication and flow of fluids from one surface of the stent to the other surface of the stent.
- the stent of the present invention is formed of an elongate, flexible duct having a very thin wall and a preformed diameter, length, and shape.
- the stent is constructed of a woven tubular structure of multiple strands or elements.
- the woven tubular structure is thermally set to a predetermined diameter and length, so that the "at rest" or natural condition of the tubular structure is predictable.
- a retention or holding member can be formed at one or both of the ends of the stent. This retention member can be reduced in diameter for insertion into the body passage.
- the woven tubular structure provides a path for fluids to flow in and around the stent, while a patent lumen is being developed.
- the woven tubular structure allows the stent to be extended or stretched over a guidewire or other noncompressive member, to thereby reduce the diameter of the stent for insertion of the stent into a body passage.
- a stent for use in a body passage includes an expandable tube having a proximal tube end, a distal tube end, and a lumen extending from the proximal tube end to the distal tube end.
- the expandable tube is configurable between a large-diameter relaxed state and a small- diameter tension state.
- the proximal tube end and the distal tube end are separated by a predetermined distance when the expandable tube is in the large- diameter relaxed state, and the proximal tube end and the distal tube end are separated by a second distance, which is larger than the predetermined distance, when the expandable tube is in the small-diameter tension state.
- a retention member is integrally formed with the expandable tube and is located just proximally of the distal tube end.
- the retention member has a large- diameter relaxed shape and a small-diameter tension shape, and has a retention member diameter, in the large-diameter relaxed shape, which is greater than an expandable tube diameter of the expandable tube, when the expandable tube is in the large-diameter relaxed state.
- the stent further includes activating means adapted for increasing a distance between the proximal tube end and the distal tube end, to thereby change the expandable tube from the large-diameter relaxed state to the small-diameter tension state.
- the activating means is also adapted for changing the retention member from the large-diameter relaxed shape to the small-diameter tension shape, by increasing a distance between the proximal tube end and the distal tube end.
- the activating means includes a compression tube, which is adapted for fitting within the lumen and for contacting the distal tube end.
- the compression tube is further adapted for applying a distal force onto the distal tube end when a proximal force is applied to the proximal tube end.
- both the distal force and the proximal force changes the expandable tube from the large-diameter relaxed state to the small-diameter tension state
- removal of both the distal force and the proximal force changes the expandable tube from the small-diameter tension state to the large-diameter relaxed state
- a stent includes a stent body formed of a braided material and an enlarged diameter retention member adjacent to the stent body and integrally formed with the stent body of the braided material.
- the large- diameter retention member is disposed near a distal end of the stent and comprises a cone shape.
- the stent further includes a rigid collar at a distal end of the cone-shaped retention member. The rigid collar defines an aperture.
- the stent includes a compression sleeve adapted for fitting within the stent body and for contacting the rigid collar.
- the stent is configurable into the insertion configuration by application of a distal force on the rigid collar by the compression sleeve, and is configurable into the stent configuration by removal of the distal force from the rigid collar.
- the stent further includes a guidewire adapted for fitting within the stent body and through the aperture.
- the retention member may also include a number of convolutions disposed on the stent body. These convolutions may cover a majority of the surface of the stent.
- a retention member for use in combination with a stent includes a tubular trunk formed of a braided material and a radially increasing portion formed in the braided material.
- the radially increasing portion is disposed adjacent to and integral with the tubular trunk, and extends substantially perpendicularly to a surface of the tubular trunk around a circumference of the tubular trunk.
- the retention member further includes a radially decreasing portion formed in the braided material and disposed adjacent to and integral with the tubular trunk.
- the radially increasing portion and the radially decreasing portion may comprise a cone shape, a convolution, or a combination thereof.
- a method of accessing a body passage includes a step of converting a stent into a long-length, small-diameter insertion configuration by applying tension between a proximal end of the stent and a distal end of the stent, to thereby increase a distance between the proximal end of the stent and the distal end of the stent.
- the stent is then inserted into a body passage of a patient and moved through the body passage to a desired location.
- the stent is then converted into a small-length, large- diameter stent configuration by removing the tension, to thereby decrease the distance between the proximal end of the stent and the distal end of the stent.
- a method of making a stent which is transformable between a large-diameter configuration and a small- diameter configuration, begins with providing a woven tubular structure.
- the tubular structure is placed over a forming tool, which comprises a cylindrical body having a first diameter and a second diameter.
- a forming tool which comprises a cylindrical body having a first diameter and a second diameter.
- the stent will be transformable from the large-diameter configuration to the small-diameter configuration upon application from a compression sleeve of a distal force onto a distal end of the stent.
- the first diameter of the cylindrical body corresponds to the large-diameter configuration
- the second diameter of the cylindrical body is smaller than a diameter of the compression sleeve.
- the stent is irradiated with thermal energy, to thereby set a diameter of a portion of the woven tubular structure to the first diameter and to set a diameter of a distal end of the woven tubular structure to the second diameter.
- the resulting structure is removed from the forming tool.
- the forming tool may include a cone-shaped portion near a distal end of the cylindrical body, and the second diameter may correspond to a diameter of a guidewire.
- the irradiating step can be preceded by a step of folding a portion of the woven tubular structure, located proximally of the cone-shaped portion, proximally upon the forming tool to thereby form a retention member.
- the forming tool comprises a cylindrical mandrel having both a first cone-shaped portion near a distal end of the cylindrical mandrel and a second cone- shaped portion near a proximal end of the cylindrical mandrel.
- the irradiating step is preceded by a first step of folding a portion of the woven tubular structure, located proximally of the first cone-shaped portion, proximally upon the mandrel to thereby form a first retention member, and a second step of folding a portion of the woven tubular structure, located distally of the second cone-shaped portion, distally upon the mandrel to thereby form a second retention member.
- the step of removing the resulting structure from the cylindrical mandrel is followed by a step of cutting the resulting structure in half, to thereby bisect the resulting structure into two stents.
- Figure 1 is a schematic view of the stent of the present invention directed to pass through a ureter between a kidney and a urinary bladder;
- Figure 2 is a side view of the stent in a radially expanded condition
- Figure 3 is a side view of the stent in a radially compressed and longitudinally extended condition
- Figure 4 is a side view of the stent of the present invention showing an introducer assembly
- Figure 5 is a cut away view of the stent positioned over an introducer assembly
- Figure 6 is a cross-sectional view taken along the axis of both the stent and the introducer assembly
- Figure 7 is an enlarged view of the retention member of the stent according to the present invention.
- Figure 8 is a view of one embodiment of the stent of the present invention having convoluted sections at opposing ends of the stent body;
- Figure 9 is a view of one embodiment of the stent of the present invention having convolutions along the length of the stent body;
- Figure 10 is a view of a material suitable for the construction of the stent
- Figure 11 is a view of a forming tool or mandrel being used to form the stent of the present invention
- Figure 12 illustrates the use of a mandrel or forming tool and the use of heat to set the material of the stent to a preferred embodiment
- Figure 13 is a view of one embodiment of the stent having a tether at one end;
- Figure 14 is a view of one embodiment of the stent of the present invention having a severable mid section
- Figure 15 is an end view of the stent in an elongated condition within a body passage or vessel
- Figure 16 is an end view of the stent in an expanded condition within a body passage or vessel
- Figure 17 is an illustration of the forces applied outwardly from the axis of the stent and against the wall structure of the body passage or vessel;
- Figure 18 is a cut-away view of the stent within a body passage or vessel in an expanded condition
- Figure 19 illustrates the relative length to diameter feature in an expanded condition of the stent
- Figure 20 illustrates the relative length to diameter feature in an extended condition of the stent
- Figure 21 illustrates the relative length to diameter feature in an intermediate condition of the stent.
- a stent or prosthesis 30 having a proximal tube end 32 and a distal tube end 34.
- the stent body 36 is shown within a body passage or vessel 38, such as a ureter.
- the stent body 36 extends within the ureter 38 between a kidney 40 and a urinary bladder 42.
- the stent body 36 of the present invention is sized and configured to exert a compressive force against the interior surface 45 of the body passage 38.
- the stent 30 comprises a retention member 48 at the distal tube end 34.
- the stent 30 of the embodiment shown in Figure 1 comprises a ureteral stent, which is adapted for developing or maintaining a patent lumen in the ureter 38 between the kidney 40 and the urinary bladder 42.
- the stent 30 facilitates passage of fluid in, through, and around the stent body 36 from the kidney 40 to the urinary bladder 42.
- the stent of the present invention preferably comprises a woven material, which can be elongated and contracted.
- Figure 2 is a side view of the stent 30 in a contracted, radially expanded condition.
- the condition illustrated in Figure 2 corresponds to an "at rest" or natural condition of the stent 30.
- the lumen of the stent body 36 is fully developed along the length of the stent body 36, narrowing only at the distal tube end 34.
- the retention member 48 which forms a cuff or enlargement sized and configured to engage a portion of an organ or passage, has an enlarged diameter in the natural condition shown in Figure 2.
- the retention member 48 assists in maintaining the stent 30 within the body passage 38, as illustrated in Figure 1, for example .
- Figure 3 illustrates the stent 30 in a stretched, radially compressed and longitudinally extended condition.
- the stent body 36 is preferably reduced in diameter in order to facilitate placement of the stent 30 into a body passage 38.
- the diameters of the stent body 36 and the retention member 48 are significantly reduced to facilitate a low profile configuration for insertion into the body passage 38.
- the stent 30 is placed into the low profile condition by application of a tensile force applied to both the proximal tube end 32 and the distal tube end 34.
- a compression sleeve 60 having a proximal end 62 and a distal end 64 ( Figure 5), can be inserted into a lumen of the stent 30.
- the compression sleeve 60 is preferably inserted into the lumen of the stent 30, until the distal end 64 of the compression sleeve 60 contacts the distal tube end 34 of the stent 30. After this placement, the proximal tube end 32 of the stent 30 can be drawn proximally, relative to the compression sleeve 60, to thereby facilitate elongation of the stent 30.
- a guidewire 70 having a proximal end 72 and a distal end 74, may be placed within the compression sleeve 60.
- the guidewire 70 provides a means for establishing a track, so that the stent 30 and compression sleeve 60 may be advanced along the guidewire 70 to a desired location within the body passage 38, with the stent 30 in an elongated configuration.
- the proximal tube end 32 of the stent 30 is released or relaxed, to thereby allow the proximal tube end 32 to move distally, resulting in an enlargement of the diameter of the stent 30.
- the guidewire 70 is placed within the body passage 38, and the stent 30 is then placed over the proximal end 72 of the guidewire 70.
- the compression sleeve 60 is placed over the proximal end 72 of the guidewire 70 and into the stent body 36.
- Figure 5 illustrates a cut-away view of the stent
- Figure 6 illustrates a cross- sectional view of the assembly shown in Figure 5.
- the compression sleeve 60 fits between the stent 30 and the guidewire 70.
- the opening at the distal end 34 of the stent 30 does not permit the distal end 64 of the compression sleeve 60 to pass through.
- This configuration permits the stent 30 to be stretched lengthwise, as the proximal end 32 of the stent 30 is extended proximally along the surface of the compression sleeve 60.
- the profile of the stent 30 exceeds the outside diameter of the compression sleeve 60 by the thickness of the wall of the stent body 36.
- This extended/compressed relationship exists as long as a holding force is maintained between the proximal end 32 of the stent 30 and the compression sleeve 60. When this force is removed, the stent 30 assumes an "at rest" or expanded profile.
- FIG 7 illustrates an enlarged view of the retention member 48 of the presently preferred embodiment.
- the retention member 48 preferably comprises an enlarged diameter capable of engaging a portion within a vessel or organ, to thereby prevent the stent 30 from migrating or slipping from a desired position or location within the vessel or organ.
- the distal ring 81 of the retention member 48 is preferably sized and configured to prevent the compression sleeve 60 ( Figure 5) from passing therethrough.
- the distal ring 81 preferably comprises a thermally fused or melted portion of material fibers 84 from which the stent 30 is woven.
- the distal ring 81 may be formed in other ways and/or comprise other materials.
- the retention member 48 comprises the shape of a cone 87 having a small diameter portion 89 distally located from a large diameter portion 92.
- the retention member 48 preferably comprises a substantially folded lip section 95 and a substantially folded angular portion 98 providing a transition between the stent body 36 and the retention member 48.
- Figures 8 and 9 illustrate stents 30 having series of convolutions 100, 102, and 104 formed along the stent bodies 48. These convolutions 100, 102, 104 can operate to add strength to the retention members 48 and 107.
- the convolutions 100, 102, 104 also provide additional strength to the stent bodies 36 for resisting compression in much the same way as corrugated tubing resists kinking and compression. Additionally, the convolutions 100, 102, 104 assist in providing traction within the lumen of a body passage 38 and are sized and configured to be reduced in profile in the same manner as the stent body 36 by the application of traction or tension upon the stent body 36.
- the stent 30 is formed from an initial woven tubular structure 111, which preferably comprises a thermoplastic material or mesh.
- This construction begins by weaving or braiding a plurality of individual or groups of individual fibers or elements 84 into a tubular stent body 36. Desired characteristics may be developed within this construction for providing ratios of expansion to extension, as is known in the art.
- the woven tubular structure 111 is placed onto a forming tool or mandrel 113 having a proximal end 115 and a distal end 117.
- the mandrel 113 serves as a form in setting the thermoplastic material of the woven tubular structure 111.
- the forming tool 113 comprises a first diameter near the proximal end 115 and a second diameter near the distal end 117.
- the first diameter represents the desired maximum deployed or expanded diameter of the stent body 36 when the stent body 36 is within a body passage or vessel 38
- the second diameter corresponds to the diameter of a conventional guidewire 70 ( Figure 6) but smaller in diameter than the diameter of the compressions sleeve 60 ( Figure 6).
- the woven tubular structure 111 of the stent 30 is folded proximally upon the forming tool 113 to thereby form the retention member 48.
- the forming tool 113 and the woven tubular structure 111 are next exposed to radiation 121 from a heat source or an oven preferably at a temperature sufficient to set the material of the woven tubular structure 111 to the preferred condition.
- the material comprises a thermoplastic, such as a polyester or nylon, since these materials allow for the development of a permanent, thermally set condition.
- the distal tube end 34 and the distal ring 81 are preferably fused or melted to form a solid ring or collar which provides support for the compression sleeve 60.
- a proximal portion 123 of the stent body 36 may be coated with an elastomeric material to thereby provide stability at the proximal portion 123.
- Figure 13 illustrates a stent 30 having a tether 130 attached or formed at the proximal tube end 32 for assisting in the placement or the removal of the stent 30 from a body passage 38.
- Figure 14 illustrates a stent having a first retention member 48 and a second retention member 136 located at an end opposite from the first retention member 48.
- the stent having the two retention members 48, 136 may be used as is or, alternatively, the stent may be cut at a preferred location 138 to form two individual stents 140 and 142.
- Figure 15 illustrates an end view of the stent 30 of the presently preferred embodiment within a body passage 38.
- the stent 30 is illustrated in an extended, small diameter condition over both the compression sleeve 60 and the guidewire 70.
- Figures 16 and 17 illustrate the stent 30 in a large-diameter relaxed state.
- the guidewire 70 and the compression sleeve 60 may be removed at this time.
- the stent body 36 exerts a constant outward pressure 151 upon the interior surface 45 of the body passage 38. This outwardly directed radial pressure, along with the naturally occurring tendency for the intimal tissue to move away from a foreign body, combines to enlarge and/or maintain the lumen of the body passage 20.
- FIG. 18 An enlarged view of a body passage 38 is provided in Figure 18 with a stent 30 of the presently preferred embodiment fully extended within the lumen of the body passage 38.
- the individual fibers or groups of fibers 84 are spaced apart to thereby allow for the flow 155 of fluid through and around the stent body 36 as the stent body 36 applies outward pressure to the interior surface 45 of the body passage 38.
- FIG. 19-21 The relationship between the length and the diameter of the stent 30 of the present invention is illustrated in Figures 19-21.
- the stent 30 in the "at rest" or natural, relaxed condition is illustrated in Figure 19 with a fully expanded, maximum diameter 172.
- a change in length 170 will accompany any change in diameter 172.
- any change in length 170 precipitates a commensurate change in diameter 172.
- the present invention harnesses this relationship to facilitate the placement, maintenance, and removal of the stent 30.
- the length 174 and the diameter 176 of the retention member 48 change somewhat proportionally to changes in the length 170 and diameter 172 of the stent body 36.
- the diameters 182 of the stent body 36 and the diameter 186 of the retention member 48 are both reduced.
- the stent 30 attempts to assume an original "thermally set" or natural condition within the body passage.
- the length 190 and the diameter 192 increase from the length 180 and the diameter 182 of Figure 20, as illustrated in Figure 21.
- the length 191 and the diameter 196 of the retention member 48 increase.
- the increased diameters 192, 196 exert radially outwardly directed forces upon any resistive structure.
- the lumen within the body passage 38 will also increase, thereby facilitating further increases in the diameters 192, 196.
- the intimal tissue of the body passage 38 responds to the presence of the braided material of the stent 30 by moving away from the braided material. In doing so, the lumen of the body passage 38 enlarges itself in response to the presence of the stent 30. As the lumen enlarges, the self-expanding stent 30 follows the inner surface of the body passage 38 and continues to expand. This, in turn, stimulates further enlargement of the lumen of the body passage 38. The expansion response development continues until a maximum lumen diameter is achieved.
- the expansion/response reaction is believed to be a reaction to the crossing members of the braided material and the motion of these crossing memebers within the body passage 38, especially when the body passage comprises a ureter.
- the expansion/response reaction may also be attributed to a general foreign body reaction within a body passage 38.
- a ureter it is believed that the irritation from the braided or woven members causes the response.
- the braided or woven material of the stent 30 performs a majority of the work.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98902429A EP0967937A4 (en) | 1997-02-26 | 1998-01-09 | Kinetic stent |
JP53763398A JP2001513008A (en) | 1997-02-26 | 1998-01-09 | Dynamic stent |
CA002282511A CA2282511A1 (en) | 1997-02-26 | 1998-01-09 | Kinetic stent |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/806,337 US6582472B2 (en) | 1997-02-26 | 1997-02-26 | Kinetic stent |
US08/806,337 | 1997-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998037834A1 true WO1998037834A1 (en) | 1998-09-03 |
Family
ID=25193829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/000313 WO1998037834A1 (en) | 1997-02-26 | 1998-01-09 | Kinetic stent |
Country Status (5)
Country | Link |
---|---|
US (1) | US6582472B2 (en) |
EP (1) | EP0967937A4 (en) |
JP (1) | JP2001513008A (en) |
CA (1) | CA2282511A1 (en) |
WO (1) | WO1998037834A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1175186A1 (en) * | 1999-04-30 | 2002-01-30 | Applied Medical Resources Corporation | Improved ureteral stent system apparatus and method |
WO2003039406A1 (en) * | 2001-11-02 | 2003-05-15 | Lutz Freitag | Stent |
EP1392388A2 (en) * | 2001-01-23 | 2004-03-03 | Abbeymoor Medical, Inc. | Endourethral device & method |
US7758542B2 (en) | 2000-08-07 | 2010-07-20 | Abbeymoor Medical, Inc. | Endourethral device and method |
EP2926767B1 (en) | 2003-12-23 | 2016-05-04 | Boston Scientific Scimed, Inc. | Repositionable heart valve |
Families Citing this family (117)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10028851B2 (en) | 1997-04-15 | 2018-07-24 | Advanced Cardiovascular Systems, Inc. | Coatings for controlling erosion of a substrate of an implantable medical device |
US8172897B2 (en) | 1997-04-15 | 2012-05-08 | Advanced Cardiovascular Systems, Inc. | Polymer and metal composite implantable medical devices |
US6240616B1 (en) | 1997-04-15 | 2001-06-05 | Advanced Cardiovascular Systems, Inc. | Method of manufacturing a medicated porous metal prosthesis |
DE69732229T2 (en) * | 1997-07-17 | 2005-12-29 | Schneider (Europe) Gmbh | Stent and manufacturing process for it |
US6623521B2 (en) | 1998-02-17 | 2003-09-23 | Md3, Inc. | Expandable stent with sliding and locking radial elements |
US6562066B1 (en) * | 2001-03-02 | 2003-05-13 | Eric C. Martin | Stent for arterialization of the coronary sinus and retrograde perfusion of the myocardium |
US7682669B1 (en) * | 2001-07-30 | 2010-03-23 | Advanced Cardiovascular Systems, Inc. | Methods for covalently immobilizing anti-thrombogenic material into a coating on a medical device |
US7285304B1 (en) | 2003-06-25 | 2007-10-23 | Advanced Cardiovascular Systems, Inc. | Fluid treatment of a polymeric coating on an implantable medical device |
US7989018B2 (en) | 2001-09-17 | 2011-08-02 | Advanced Cardiovascular Systems, Inc. | Fluid treatment of a polymeric coating on an implantable medical device |
US6863683B2 (en) | 2001-09-19 | 2005-03-08 | Abbott Laboratoris Vascular Entities Limited | Cold-molding process for loading a stent onto a stent delivery system |
AU2003215330B2 (en) | 2002-02-21 | 2008-03-13 | Encelle, Inc. | Immobilized bioactive hydrogel matrices as surface coatings |
US7198675B2 (en) | 2003-09-30 | 2007-04-03 | Advanced Cardiovascular Systems | Stent mandrel fixture and method for selectively coating surfaces of a stent |
US20050085787A1 (en) * | 2003-10-17 | 2005-04-21 | Laufer Michael D. | Minimally invasive gastrointestinal bypass |
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 |
US7507218B2 (en) * | 2004-04-26 | 2009-03-24 | Gyrus Acmi, Inc. | Stent with flexible elements |
US20050240278A1 (en) * | 2004-04-26 | 2005-10-27 | Peter Aliski | Stent improvements |
US9561309B2 (en) | 2004-05-27 | 2017-02-07 | Advanced Cardiovascular Systems, Inc. | Antifouling heparin coatings |
US8568469B1 (en) | 2004-06-28 | 2013-10-29 | Advanced Cardiovascular Systems, Inc. | Stent locking element and a method of securing a stent on a delivery system |
US8241554B1 (en) | 2004-06-29 | 2012-08-14 | Advanced Cardiovascular Systems, Inc. | Method of forming a stent pattern on a tube |
US7763065B2 (en) | 2004-07-21 | 2010-07-27 | Reva Medical, Inc. | Balloon expandable crush-recoverable stent device |
US7731890B2 (en) | 2006-06-15 | 2010-06-08 | Advanced Cardiovascular Systems, Inc. | Methods of fabricating stents with enhanced fracture toughness |
US7971333B2 (en) | 2006-05-30 | 2011-07-05 | Advanced Cardiovascular Systems, Inc. | Manufacturing process for polymetric stents |
US8747878B2 (en) | 2006-04-28 | 2014-06-10 | Advanced Cardiovascular Systems, Inc. | Method of fabricating an implantable medical device by controlling crystalline structure |
US8747879B2 (en) | 2006-04-28 | 2014-06-10 | Advanced Cardiovascular Systems, Inc. | Method of fabricating an implantable medical device to reduce chance of late inflammatory response |
US8778256B1 (en) | 2004-09-30 | 2014-07-15 | Advanced Cardiovascular Systems, Inc. | Deformation of a polymer tube in the fabrication of a medical article |
US9283099B2 (en) | 2004-08-25 | 2016-03-15 | Advanced Cardiovascular Systems, Inc. | Stent-catheter assembly with a releasable connection for stent retention |
US7229471B2 (en) | 2004-09-10 | 2007-06-12 | Advanced Cardiovascular Systems, Inc. | Compositions containing fast-leaching plasticizers for improved performance of medical devices |
US7875233B2 (en) | 2004-09-30 | 2011-01-25 | Advanced Cardiovascular Systems, Inc. | Method of fabricating a biaxially oriented implantable medical device |
US8043553B1 (en) | 2004-09-30 | 2011-10-25 | Advanced Cardiovascular Systems, Inc. | Controlled deformation of a polymer tube with a restraining surface in fabricating a medical article |
US8173062B1 (en) | 2004-09-30 | 2012-05-08 | Advanced Cardiovascular Systems, Inc. | Controlled deformation of a polymer tube in fabricating a medical article |
US8292944B2 (en) | 2004-12-17 | 2012-10-23 | Reva Medical, Inc. | Slide-and-lock stent |
US8070566B2 (en) * | 2005-02-09 | 2011-12-06 | Townsend Engineering Company | Skinning blade clamp with fat relief grooves |
US7381048B2 (en) | 2005-04-12 | 2008-06-03 | Advanced Cardiovascular Systems, Inc. | Stents with profiles for gripping a balloon catheter and molds for fabricating stents |
DE102005019649A1 (en) * | 2005-04-26 | 2006-11-02 | Alveolus Inc. | Flexible stent for positioning in lumen of esophagus comprises tube and stabilization members defined circumferentially about tube, where each member extends inwardly in tube to define inner diameter that is less than inner diameter of tube |
CA2613395A1 (en) * | 2005-06-24 | 2007-01-04 | Power Ten, Llc | Expandable surgical site access system |
US7658880B2 (en) | 2005-07-29 | 2010-02-09 | Advanced Cardiovascular Systems, Inc. | Polymeric stent polishing method and apparatus |
US9149378B2 (en) | 2005-08-02 | 2015-10-06 | Reva Medical, Inc. | Axially nested slide and lock expandable device |
US7914574B2 (en) | 2005-08-02 | 2011-03-29 | Reva Medical, Inc. | Axially nested slide and lock expandable device |
US9248034B2 (en) | 2005-08-23 | 2016-02-02 | Advanced Cardiovascular Systems, Inc. | Controlled disintegrating implantable medical devices |
EP1954221B1 (en) * | 2005-11-17 | 2011-04-20 | The Cleveland Clinic Foundation | Method and apparatus for compressing intraluminal prostheses |
WO2007059293A1 (en) * | 2005-11-17 | 2007-05-24 | The Cleveland Clinic Foundation | Apparatus and method for delivering lined intraluminal prostheses |
US7867547B2 (en) | 2005-12-19 | 2011-01-11 | Advanced Cardiovascular Systems, Inc. | Selectively coating luminal surfaces of stents |
US20070156230A1 (en) | 2006-01-04 | 2007-07-05 | Dugan Stephen R | Stents with radiopaque markers |
US7951185B1 (en) | 2006-01-06 | 2011-05-31 | Advanced Cardiovascular Systems, Inc. | Delivery of a stent at an elevated temperature |
US8376981B2 (en) * | 2006-03-02 | 2013-02-19 | Michael D. Laufer | Gastrointestinal implant and methods for use |
WO2007103773A2 (en) * | 2006-03-02 | 2007-09-13 | Laufer Michael D | Gastrointestinal implant and methods for use |
US7964210B2 (en) | 2006-03-31 | 2011-06-21 | Abbott Cardiovascular Systems Inc. | Degradable polymeric implantable medical devices with a continuous phase and discrete phase |
US8003156B2 (en) | 2006-05-04 | 2011-08-23 | Advanced Cardiovascular Systems, Inc. | Rotatable support elements for stents |
US7761968B2 (en) | 2006-05-25 | 2010-07-27 | Advanced Cardiovascular Systems, Inc. | Method of crimping a polymeric stent |
US7951194B2 (en) | 2006-05-26 | 2011-05-31 | Abbott Cardiovascular Sysetms Inc. | Bioabsorbable stent with radiopaque coating |
US20130325104A1 (en) | 2006-05-26 | 2013-12-05 | Abbott Cardiovascular Systems Inc. | Stents With Radiopaque Markers |
US8343530B2 (en) | 2006-05-30 | 2013-01-01 | Abbott Cardiovascular Systems Inc. | Polymer-and polymer blend-bioceramic composite implantable medical devices |
US7959940B2 (en) | 2006-05-30 | 2011-06-14 | Advanced Cardiovascular Systems, Inc. | Polymer-bioceramic composite implantable medical devices |
US7842737B2 (en) | 2006-09-29 | 2010-11-30 | Abbott Cardiovascular Systems Inc. | Polymer blend-bioceramic composite implantable medical devices |
US8486135B2 (en) | 2006-06-01 | 2013-07-16 | Abbott Cardiovascular Systems Inc. | Implantable medical devices fabricated from branched polymers |
US8034287B2 (en) | 2006-06-01 | 2011-10-11 | Abbott Cardiovascular Systems Inc. | Radiation sterilization of medical devices |
US8603530B2 (en) | 2006-06-14 | 2013-12-10 | Abbott Cardiovascular Systems Inc. | Nanoshell therapy |
US8048448B2 (en) | 2006-06-15 | 2011-11-01 | Abbott Cardiovascular Systems Inc. | Nanoshells for drug delivery |
US8535372B1 (en) | 2006-06-16 | 2013-09-17 | Abbott Cardiovascular Systems Inc. | Bioabsorbable stent with prohealing layer |
US8333000B2 (en) | 2006-06-19 | 2012-12-18 | Advanced Cardiovascular Systems, Inc. | Methods for improving stent retention on a balloon catheter |
US8017237B2 (en) | 2006-06-23 | 2011-09-13 | Abbott Cardiovascular Systems, Inc. | Nanoshells on polymers |
US9072820B2 (en) | 2006-06-26 | 2015-07-07 | Advanced Cardiovascular Systems, Inc. | Polymer composite stent with polymer particles |
US8128688B2 (en) | 2006-06-27 | 2012-03-06 | Abbott Cardiovascular Systems Inc. | Carbon coating on an implantable device |
US7794776B1 (en) | 2006-06-29 | 2010-09-14 | Abbott Cardiovascular Systems Inc. | Modification of polymer stents with radiation |
US7740791B2 (en) | 2006-06-30 | 2010-06-22 | Advanced Cardiovascular Systems, Inc. | Method of fabricating a stent with features by blow molding |
US7823263B2 (en) | 2006-07-11 | 2010-11-02 | Abbott Cardiovascular Systems Inc. | Method of removing stent islands from a stent |
US7757543B2 (en) | 2006-07-13 | 2010-07-20 | Advanced Cardiovascular Systems, Inc. | Radio frequency identification monitoring of stents |
US7998404B2 (en) | 2006-07-13 | 2011-08-16 | Advanced Cardiovascular Systems, Inc. | Reduced temperature sterilization of stents |
US7794495B2 (en) | 2006-07-17 | 2010-09-14 | Advanced Cardiovascular Systems, Inc. | Controlled degradation of stents |
US7886419B2 (en) | 2006-07-18 | 2011-02-15 | Advanced Cardiovascular Systems, Inc. | Stent crimping apparatus and method |
US8016879B2 (en) | 2006-08-01 | 2011-09-13 | Abbott Cardiovascular Systems Inc. | Drug delivery after biodegradation of the stent scaffolding |
US9173733B1 (en) | 2006-08-21 | 2015-11-03 | Abbott Cardiovascular Systems Inc. | Tracheobronchial implantable medical device and methods of use |
US7923022B2 (en) | 2006-09-13 | 2011-04-12 | Advanced Cardiovascular Systems, Inc. | Degradable polymeric implantable medical devices with continuous phase and discrete phase |
US7713308B2 (en) * | 2006-09-22 | 2010-05-11 | Boston Scientific Scimed, Inc. | Stent with soluble bladder retention member |
US8099849B2 (en) | 2006-12-13 | 2012-01-24 | Abbott Cardiovascular Systems Inc. | Optimizing fracture toughness of polymeric stent |
US7704275B2 (en) | 2007-01-26 | 2010-04-27 | Reva Medical, Inc. | Circumferentially nested expandable device |
US8095873B2 (en) * | 2007-04-02 | 2012-01-10 | International Business Machines Corporation | Promoting content from one content management system to another content management system |
US8262723B2 (en) | 2007-04-09 | 2012-09-11 | Abbott Cardiovascular Systems Inc. | Implantable medical devices fabricated from polymer blends with star-block copolymers |
US7829008B2 (en) | 2007-05-30 | 2010-11-09 | Abbott Cardiovascular Systems Inc. | Fabricating a stent from a blow molded tube |
US7959857B2 (en) | 2007-06-01 | 2011-06-14 | Abbott Cardiovascular Systems Inc. | Radiation sterilization of medical devices |
US8293260B2 (en) | 2007-06-05 | 2012-10-23 | Abbott Cardiovascular Systems Inc. | Elastomeric copolymer coatings containing poly (tetramethyl carbonate) for implantable medical devices |
US8202528B2 (en) | 2007-06-05 | 2012-06-19 | Abbott Cardiovascular Systems Inc. | Implantable medical devices with elastomeric block copolymer coatings |
US8425591B1 (en) | 2007-06-11 | 2013-04-23 | Abbott Cardiovascular Systems Inc. | Methods of forming polymer-bioceramic composite medical devices with bioceramic particles |
US8048441B2 (en) | 2007-06-25 | 2011-11-01 | Abbott Cardiovascular Systems, Inc. | Nanobead releasing medical devices |
US7901452B2 (en) | 2007-06-27 | 2011-03-08 | Abbott Cardiovascular Systems Inc. | Method to fabricate a stent having selected morphology to reduce restenosis |
US7955381B1 (en) | 2007-06-29 | 2011-06-07 | Advanced Cardiovascular Systems, Inc. | Polymer-bioceramic composite implantable medical device with different types of bioceramic particles |
US8372131B2 (en) | 2007-07-16 | 2013-02-12 | Power Ten , LLC | Surgical site access system and deployment device for same |
JP5216098B2 (en) | 2007-11-30 | 2013-06-19 | レヴァ メディカル、 インコーポレイテッド | Axial and radially nested expandable device |
EP2331014B1 (en) | 2008-10-10 | 2017-08-09 | Reva Medical, Inc. | Expandable slide and lock 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 |
US8808353B2 (en) | 2010-01-30 | 2014-08-19 | Abbott Cardiovascular Systems Inc. | Crush recoverable polymer scaffolds having a low crossing profile |
US8568471B2 (en) | 2010-01-30 | 2013-10-29 | Abbott Cardiovascular Systems Inc. | Crush recoverable polymer scaffolds |
WO2011127452A1 (en) | 2010-04-10 | 2011-10-13 | Reva Medical, Inc | Expandable slide and lock stent |
WO2012129316A1 (en) | 2011-03-22 | 2012-09-27 | Applied Medical Resources Corporation | Method of making medical tubing having drainage holes |
US8726483B2 (en) | 2011-07-29 | 2014-05-20 | Abbott Cardiovascular Systems Inc. | Methods for uniform crimping and deployment of a polymer scaffold |
US9033956B2 (en) | 2011-09-06 | 2015-05-19 | Cook Medical Technologies Llc | Electrically charged medical device |
US9408732B2 (en) | 2013-03-14 | 2016-08-09 | Reva Medical, Inc. | Reduced-profile slide and lock stent |
US9763814B2 (en) | 2014-10-24 | 2017-09-19 | Cook Medical Technologies Llc | Elongate medical device |
US9999527B2 (en) | 2015-02-11 | 2018-06-19 | Abbott Cardiovascular Systems Inc. | Scaffolds having radiopaque markers |
US9700443B2 (en) | 2015-06-12 | 2017-07-11 | Abbott Cardiovascular Systems Inc. | Methods for attaching a radiopaque marker to a scaffold |
US10918827B2 (en) | 2015-07-20 | 2021-02-16 | Strataca Systems Limited | Catheter device and method for inducing negative pressure in a patient's bladder |
PL3325078T3 (en) | 2015-07-20 | 2020-08-24 | Strataca Systems Limited | Ureteral and bladder catheters |
US11229771B2 (en) | 2015-07-20 | 2022-01-25 | Roivios Limited | Percutaneous ureteral catheter |
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 |
US11040180B2 (en) | 2015-07-20 | 2021-06-22 | Strataca Systems Limited | Systems, kits and methods for inducing negative pressure to increase renal function |
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 |
US10512713B2 (en) | 2015-07-20 | 2019-12-24 | Strataca Systems Limited | Method of removing excess fluid from a patient with hemodilution |
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 |
US11541205B2 (en) | 2015-07-20 | 2023-01-03 | Roivios Limited | Coated urinary catheter or ureteral stent and method |
CA3049473A1 (en) * | 2017-03-30 | 2018-10-04 | Boston Scientific Scimed, Inc. | Stents with dual tissue-wall anchoring features |
WO2018213659A1 (en) * | 2017-05-19 | 2018-11-22 | Gettman Matthew T | Methods and materials for treating urinary calculi |
US11318289B2 (en) * | 2018-03-30 | 2022-05-03 | Gyrus Acmi, Inc. | Ureteral stent |
EP3870260B1 (en) | 2018-10-22 | 2023-09-27 | Sevro Technologies LLC | Variable length stent |
EP3920854A4 (en) * | 2019-02-06 | 2022-11-02 | Seshadri Raju | Venous and arterial application of the unitary stent & balloon |
CN114340566A (en) | 2019-08-23 | 2022-04-12 | 波士顿科学医学有限公司 | Devices, systems, and methods for delivering stents |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4655771A (en) * | 1982-04-30 | 1987-04-07 | Shepherd Patents S.A. | Prosthesis comprising an expansible or contractile tubular body |
US5041093A (en) * | 1990-01-31 | 1991-08-20 | Boston Scientific Corp. | Catheter with foraminous anchor |
US5667486A (en) * | 1993-04-27 | 1997-09-16 | Ams Medinvent, S.A. | Prostatic stent |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3996938A (en) * | 1975-07-10 | 1976-12-14 | Clark Iii William T | Expanding mesh catheter |
US4334327A (en) | 1979-12-21 | 1982-06-15 | University Of Utah | Ureteral prosthesis |
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 |
US4787884A (en) | 1987-09-01 | 1988-11-29 | Medical Engineering Corporation | Ureteral stent guidewire system |
US4886062A (en) | 1987-10-19 | 1989-12-12 | Medtronic, Inc. | Intravascular radially expandable stent and method of implant |
US4913683A (en) | 1988-07-05 | 1990-04-03 | Medical Engineering Corporation | Infusion 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 |
US4957479A (en) | 1988-10-17 | 1990-09-18 | Vance Products Incorporated | Indwelling ureteral stent placement apparatus |
DE3835995A1 (en) * | 1988-10-21 | 1990-04-26 | Spinner Georg | COAXIAL CABLE FITTING |
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 |
US5234425A (en) * | 1989-03-03 | 1993-08-10 | Thomas J. Fogarty | Variable diameter sheath method and apparatus for use in body passages |
EP0408245B1 (en) | 1989-07-13 | 1994-03-02 | American Medical Systems, Inc. | Stent placement instrument |
US5041092A (en) | 1989-08-29 | 1991-08-20 | Medical Engineering Corporation | Urethral indwelling catheter with magnetically controlled drainage valve and method |
US5421832A (en) * | 1989-12-13 | 1995-06-06 | Lefebvre; Jean-Marie | Filter-catheter and method of manufacturing same |
IL94138A (en) * | 1990-04-19 | 1997-03-18 | Instent Inc | Device for the treatment of constricted fluid conducting ducts |
US5078720A (en) | 1990-05-02 | 1992-01-07 | American Medical Systems, Inc. | Stent placement instrument and method |
US5222971A (en) * | 1990-10-09 | 1993-06-29 | Scimed Life Systems, Inc. | Temporary stent and methods for use and manufacture |
US5282784A (en) | 1991-10-09 | 1994-02-01 | Mentor Corporation | Injection stent system |
US5507767A (en) | 1992-01-15 | 1996-04-16 | Cook Incorporated | Spiral stent |
DE69333161T2 (en) * | 1992-05-08 | 2004-06-03 | Schneider (Usa) Inc., Plymouth | Stent for the esophagus |
US5306294A (en) | 1992-08-05 | 1994-04-26 | Ultrasonic Sensing And Monitoring Systems, Inc. | Stent construction of rolled configuration |
US5409019A (en) | 1992-10-30 | 1995-04-25 | Wilk; Peter J. | Coronary artery by-pass method |
US5354310A (en) * | 1993-03-22 | 1994-10-11 | Cordis Corporation | Expandable temporary graft |
US5401257A (en) | 1993-04-27 | 1995-03-28 | Boston Scientific Corporation | Ureteral stents, drainage tubes and the like |
DE4334140C2 (en) * | 1993-10-07 | 1996-04-18 | Angiomed Ag | Stent and device with stent |
US5476505A (en) | 1993-11-18 | 1995-12-19 | Advanced Cardiovascular Systems, Inc. | Coiled stent and delivery system |
EP0666065A1 (en) * | 1994-02-02 | 1995-08-09 | Katsushi Mori | Stent for biliary, urinary or vascular system |
US5540701A (en) * | 1994-05-20 | 1996-07-30 | Hugh Sharkey | Passive fixation anastomosis method and device |
US5514176A (en) * | 1995-01-20 | 1996-05-07 | Vance Products Inc. | Pull apart coil stent |
US5575818A (en) * | 1995-02-14 | 1996-11-19 | Corvita Corporation | Endovascular stent with locking ring |
-
1997
- 1997-02-26 US US08/806,337 patent/US6582472B2/en not_active Expired - Fee Related
-
1998
- 1998-01-09 EP EP98902429A patent/EP0967937A4/en not_active Withdrawn
- 1998-01-09 WO PCT/US1998/000313 patent/WO1998037834A1/en active Search and Examination
- 1998-01-09 JP JP53763398A patent/JP2001513008A/en active Pending
- 1998-01-09 CA CA002282511A patent/CA2282511A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4655771A (en) * | 1982-04-30 | 1987-04-07 | Shepherd Patents S.A. | Prosthesis comprising an expansible or contractile tubular body |
US4655771B1 (en) * | 1982-04-30 | 1996-09-10 | Medinvent Ams Sa | Prosthesis comprising an expansible or contractile tubular body |
US5041093A (en) * | 1990-01-31 | 1991-08-20 | Boston Scientific Corp. | Catheter with foraminous anchor |
US5667486A (en) * | 1993-04-27 | 1997-09-16 | Ams Medinvent, S.A. | Prostatic stent |
Non-Patent Citations (1)
Title |
---|
See also references of EP0967937A4 * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1175186A1 (en) * | 1999-04-30 | 2002-01-30 | Applied Medical Resources Corporation | Improved ureteral stent system apparatus and method |
EP1175186A4 (en) * | 1999-04-30 | 2006-03-22 | Applied Med Resources | Improved ureteral stent system apparatus and method |
US7758542B2 (en) | 2000-08-07 | 2010-07-20 | Abbeymoor Medical, Inc. | Endourethral device and method |
EP1392388A2 (en) * | 2001-01-23 | 2004-03-03 | Abbeymoor Medical, Inc. | Endourethral device & method |
EP1392388A4 (en) * | 2001-01-23 | 2007-01-17 | Abbeymoor Medical Inc | Endourethral device & method |
US7951064B2 (en) | 2001-01-23 | 2011-05-31 | Abbeymoor Medical, Inc. | Endourethral device and method |
US8016742B2 (en) | 2001-01-23 | 2011-09-13 | Abbeymoor Medical, Inc. | Endourethral device and method |
WO2003039406A1 (en) * | 2001-11-02 | 2003-05-15 | Lutz Freitag | Stent |
EP2926767B1 (en) | 2003-12-23 | 2016-05-04 | Boston Scientific Scimed, Inc. | Repositionable heart valve |
Also Published As
Publication number | Publication date |
---|---|
CA2282511A1 (en) | 1998-09-03 |
EP0967937A4 (en) | 2003-04-16 |
JP2001513008A (en) | 2001-08-28 |
US20020062148A1 (en) | 2002-05-23 |
EP0967937A1 (en) | 2000-01-05 |
US6582472B2 (en) | 2003-06-24 |
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