CA2175722A1 - Expandable stent and method for delivery of same - Google Patents

Expandable stent and method for delivery of same

Info

Publication number
CA2175722A1
CA2175722A1 CA 2175722 CA2175722A CA2175722A1 CA 2175722 A1 CA2175722 A1 CA 2175722A1 CA 2175722 CA2175722 CA 2175722 CA 2175722 A CA2175722 A CA 2175722A CA 2175722 A1 CA2175722 A1 CA 2175722A1
Authority
CA
Canada
Prior art keywords
wall
apex
stent defined
stent
side walls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA 2175722
Other languages
French (fr)
Inventor
Ian M. Penn
Donald R. Ricci
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evysio Medical Devices ULC
Original Assignee
Divysio Solutions Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Divysio Solutions Ltd filed Critical Divysio Solutions Ltd
Priority to CA 2175722 priority Critical patent/CA2175722A1/en
Priority to CA002192520A priority patent/CA2192520A1/en
Priority to MYPI97000862A priority patent/MY130279A/en
Priority to AT97904959T priority patent/ATE258771T1/en
Priority to AT04016426T priority patent/ATE363253T1/en
Priority to DE69727472T priority patent/DE69727472T2/en
Priority to EP97904959A priority patent/EP0888094B1/en
Priority to EP00121964A priority patent/EP1066804B1/en
Priority to EP04016426A priority patent/EP1477133B9/en
Priority to CA002248716A priority patent/CA2248716C/en
Priority to AT07004140T priority patent/ATE471127T1/en
Priority to PCT/CA1997/000151 priority patent/WO1997032543A1/en
Priority to DE69705706T priority patent/DE69705706T3/en
Priority to US09/142,508 priority patent/US6217608B1/en
Priority to DE69739913T priority patent/DE69739913D1/en
Priority to JP09531281A priority patent/JP2001501493A/en
Priority to AU18644/97A priority patent/AU1864497A/en
Priority to DE69729900T priority patent/DE69729900T3/en
Priority to AT97904958T priority patent/ATE203151T1/en
Priority to PCT/CA1997/000152 priority patent/WO1997032544A1/en
Priority to AT00121964T priority patent/ATE270861T1/en
Priority to JP53128297A priority patent/JP4281851B2/en
Priority to DE69737777T priority patent/DE69737777T2/en
Priority to AU18643/97A priority patent/AU1864397A/en
Priority to EP97904958A priority patent/EP0888093B2/en
Priority to EP07004140A priority patent/EP1790314B1/en
Priority to IDP970684A priority patent/ID16130A/en
Priority to CA002248718A priority patent/CA2248718A1/en
Priority to US09/142,509 priority patent/US6183506B1/en
Publication of CA2175722A1 publication Critical patent/CA2175722A1/en
Priority to US09/462,461 priority patent/US6796997B1/en
Priority to AU56539/00A priority patent/AU765228B2/en
Priority to US09/672,767 priority patent/US6375677B1/en
Priority to US09/672,768 priority patent/US6758860B1/en
Priority to US10/073,277 priority patent/US6858037B2/en
Priority to US10/190,818 priority patent/US6881223B2/en
Priority to US10/191,522 priority patent/US6887264B2/en
Priority to US10/761,459 priority patent/US20040153141A1/en
Priority to US10/850,397 priority patent/US8075609B2/en
Priority to US10/849,990 priority patent/US7094255B2/en
Priority to US11/419,895 priority patent/US20060200228A1/en
Priority to US11/831,693 priority patent/US20080021542A1/en
Priority to US11/840,098 priority patent/US20080021536A1/en
Priority to JP2007216325A priority patent/JP5148947B2/en
Priority to US12/252,478 priority patent/US20090036974A1/en
Priority to US12/419,453 priority patent/US20090192590A1/en
Priority to JP2011149044A priority patent/JP2011245318A/en
Priority to JP2014140014A priority patent/JP2014208287A/en
Abandoned legal-status Critical Current

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
    • A61F2/82—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
    • A61F2/88—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements formed as helical or spiral coils
    • 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
    • A61F2/91—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • 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
    • A61F2/91—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • 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
    • A61F2/89—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
    • 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
    • A61F2002/825—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having longitudinal struts
    • 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
    • A61F2/91—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
    • A61F2/915—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 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
    • A61F2002/9155—Adjacent bands being connected to each other
    • A61F2002/91575—Adjacent bands being connected to each other connected peak to trough
    • 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
    • A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
    • A61F2210/0019—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol operated at only one temperature whilst inside or touching the human body, e.g. constrained in a non-operative shape during surgery, another temperature only occurring before the operation
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0036—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in thickness

Abstract

An expandable stent comprising a proximal end and a distal end in communication with one another. A tubular wall is disposed between the proximal end and the distal end. The tubular wall having a longitudinal axis and a poroussurface defined by a plurality intersecting members arranged to define a first repeating pattern comprised of a polygon. The polygon has a pair of side walls substantially parallel to the longitudinal axis, a concave-shaped first wall having a first apex and a convex-shaped second wall having a second apex, the first wall and the second wall connecting the side walls. At least one of the first apex and the second apex is substantially flat. The stent is expandable from a first, contracted position to a second, expanded position upon the application of a radially outward force on the stent. A bifurcated stent including the first repeating pattern is also described.

Claims (70)

1. An expandable stent comprising a proximal end and a distal end in communication with one another, a tubular wall disposed between the proximal endand the distal end, the tubular wall having a longitudinal axis and a porous surface defined by a plurality intersecting members arranged to define a first repeatingpattern comprised of a polygon having a pair of side walls substantially parallel to the longitudinal axis, a concave-shaped first wall having a first apex and a convex-shaped second wall having a second apex, the first wall and the second wall connecting the side walls, at least one of the first apex and the second apex being substantially flat, the stent being expandable from a first, contracted position to a second, expanded position upon the application of a radially outward force on the stent.
2. The stent defined in claim 1, wherein both the first apex and the second apexare substantially flat.
3. The stent defined in claim 2, wherein the first apex and the second apex are of different length.
4. The stent defined in claim 2, wherein the first apex and the second apex are of the same length.
5. The stent defined in claim 4, wherein the first wall and the second wall are substantially equidistant from one another along an axis parallel to the longitudinal axis.
6. The stent defined in claim 1, wherein one of the first apex and the second apex is substantially arcuate.
7. The stent defined in claim 1, further comprising a strut connecting the firstapex to the second apex.
8. The stent defined in claim 7, wherein the strut is curved with respect to thelongitudinal axis.
9. The stent defined in claim 8, wherein the strut has length of up to about 35 %
greater than the distance between the first apex and the second apex.
10. The stent defined in claim 8, wherein the strut has a length up to about 15%greater than the distance between the first apex and the second apex.
11. The stent defined in claim 8, wherein the strut has a length in the range offrom about 2% to about 8% greater than the distance between the first apex and the second apex.
12. The stent defined in claim 8, wherein the strut has a length in the range offrom about 3% to about 7% greater than the distance between the first apex and the second apex.
13. The stent defined in claim 1, wherein the side walls are substantially equidistant from one another along an axis orthogonal to the longitudinal axis of stent.
14. The stent defined in claim 1, wherein one of the side walls is curved with respect to the longitudinal axis.
15. The stent defined in claim 14, wherein the one of the side walls which is curved has a length up to about 35% greater than the distance between the respective termini of the first wall and the second wall.
16. The stent defined in claim 14, wherein the one of the side walls which is curved has a length up to about 15% greater than the distance between the respective termini of the first wall and the second wall.
17. The stent defined in claim 14, wherein the one of the side walls which is curved has a length in the range of from about 2% to about 8% greater than the distance between the respective termini of the first wall and the second wall.
18. The stent defined in claim 14, wherein the one of the side walls which is curved has a length in the range of from about 3 % to about 7% greater than the distance between the respective termini of the first wall and the second wall.
19. The stent defined in claim 1, wherein both of the side walls are curved withrespect to the longitudinal axis.
20. The stent defined in claim 19, wherein the side walls have a length up to about 35% greater than the distance between the respective termini of the first wall and the second wall.
21. The stent defined in claim 19, wherein the side walls have a length up to about 15% greater than the distance between the respective termini of the first wall and the second wall.
22. The stent defined in claim 19, wherein the side walls have a length in the range of from about 2% to about 8% greater than the distance between the respective termini of the first wall and the second wall.
23. The stent defined in claim 19, wherein the side walls have a length in the range of from about 3% to about 7% greater than the distance between the respective termini of the first wall and the second wall.
24. The stent defined in claim 1, wherein the stent is constructed of stainless steel.
25. The stent defined in claim 1, wherein the stent is constructed of a self-expanding material.
26. The stent defined in claim 25, wherein the self-expanding material is nitinol.
27. The stent defined in claim 25, wherein the self-expanding material expands at a temperature of greater than about 30°C.
28. The stent defined in claim 25, wherein the self-expanding material expands at a temperature of in the range of from about 30° to about 40°C.
29. An expandable bifurcated stent comprising a proximal end and a distal end in communication with one another, the proximal end comprising a primary passageway and the distal end comprising a pair of secondary passageways, the stent being expandable from a first, contracted position to a second, expanded position upon the application of a radially outward force exerted on the stent, each of the primary and secondary passageways comprising tubular wall having a longitudinal axis and a porous surface defined by a plurality intersecting members arranged to define a first repeating pattern comprised of a polygon having a pair of side walls substantially parallel to the longitudinal axis, a concave-shaped first wall having a first apex and a convex-shaped second wall having a second apex, the first wall and the second wall connecting the side walls, at least one of the first apex and the second apex being substantially flat, the stent being expandable from a first, contracted position to a second, expanded position upon the application of a radially outward force on the stent.
30. The bifurcated stent defined in claim 29, wherein both the first apex and the second apex are substantially flat.
31. The bifurcated stent defined in claim 30, wherein the first apex and the second apex are of different length.
32. The bifurcated stent defined in claim 30, wherein the first apex and the second apex are of the same length.
33. The bifurcated stent defined in claim 32, wherein the first wall and the second wall are substantially from one another along an axis parallel to the longitudinal axis.
34. The bifurcated stent defined in claim 29, wherein one of the first apex and the second apex is substantially arcuate.
35. The bifurcated stent defined in claim 29, further comprising a strut connecting the first apex to the second apex.
36. The bifurcated stent defined in claim 35, wherein the strut is curved with respect to the longitudinal axis.
37. The bifurcated stent defined in claim 36, wherein the strut has length of upto about 35% greater than the distance between the first apex and the second apex.
38. The bifurcated stent defined in claim 36, wherein the strut has a length up to about 15 % greater than the distance between the first apex and the second apex.
39. The bifurcated stent defined in claim 36, wherein the strut has a length in the range of from about 2% to about 8% greater than the distance between the first apex and the second apex.
40. The bifurcated stent defined in claim 36, wherein the strut has a length in the range of from about 3% to about 7% greater than the distance between the first apex and the second apex.
41. The bifurcated stent defined in claim 29, wherein the side walls are substantially equidistant from one another along an axis orthogonal to the longitudinal axis of stent.
42. The bifurcated stent defined in claim 29, wherein one of the side walls is curved with respect to the longitudinal axis.
43. The bifurcated stent defined in claim 42, wherein the one of the side walls which is curved has a length up to about 35% greater than the distance between the respective termini of the first wall and the second wall.
44. The bifurcated stent defined in claim 42, wherein the one of the side walls which is curved has a length up to about 15% greater than the distance between the respective termini of the first wall and the second wall.
45. The bifurcated stent defined in claim 42, wherein the one of the side walls which is curved has a length in the range of from about 2% to about 8% greater than the distance between the respective termini of the first wall and the second wall.
46. The bifurcated stent defined in claim 42, wherein the one of the side walls which is curved has a length in the range of from about 3% to about 7% greater than the distance between the respective termini of the first wall and the second wall.
47. The bifurcated stent defined in claim 29, wherein both of the side walls arecurved with respect to the longitudinal axis.
48. The bifurcated stent defined in claim 47, wherein the side walls have a length up to about 35% greater than the distance between the respective termini of the first wall and the second wall.
49. The bifurcated stent defined in claim 47, wherein the side walls have a length up to about 15% greater than the distance between the respective termini of the first wall and the second wall.
50. The bifurcated stent defined in claim 47, wherein the side walls have a length in the range of from about 2 % to about 8 % greater than the distance between the respective termini of the first wall and the second wall.
51. The bifurcated stent defined in claim 47, wherein the side walls have a length in the range of from about 3% to about 7% greater than the distance between the respective termini of the first wall and the second wall.
52. The bifurcated stent defined in claim 29, wherein the stent is constructed of stainless steel.
53. The bifurcated stent defined in claim 29, wherein the stent is constructed of a self-expanding material.
54. The bifurcated stent defined in claim 53, wherein the self-expanding material is nitinol.
55. The bifurcated stent defined in claim 53, wherein the self-expanding material expands at a temperature of greater than about 30°C.
56. The bifurcated stent defined in claim 53, wherein the self-expanding material expands at a temperature of in the range of from about 30° to about 40°C.
57. The bifurcated stent defined in claim 29, wherein the primary passageway is connected to the each of the secondary passageways at an intersection point.
58. The bifurcated stent defined in claim 57, wherein the intersection point is reinforced with respect to the remainder of the stent.
59. The bifurcated stent defined in claim 57, wherein the intersection point is porous.
60. The bifurcated stent defined in claim 59, wherein the porosity of the intersection point is defined by a plurality intersecting members.
61. The bifurcated stent defined in 60, wherein the intersecting members define a second repeating pattern.
62. The bifurcated stent defined in claim 61, wherein the second repeating pattern is a polygon having a pair of side walls substantially parallel to the longitudinal axis of the primary passageway, a concave-shaped first wall and a convex-shaped second wall connecting the side walls, the side walls being substantially equidistant along an axis which is parallel to the longitudinal axis of the primary passageway, and a reinforcing bar disposed between and substantiallyparallel to the pair of side walls.
63. The bifurcated stent defined in claim 62, wherein the reinforcing bar is disposed substantially equidistant from each of the side walls.
64. The bifurcated stent defined in claim 29, wherein the primary passageway has a substantially circular cross-section.
65. The bifurcated stent defined in claim 29, wherein each of the secondary passageways has a substantially circular cross-section.
66. The bifurcated stent defined in claim 29, wherein the cross-sectional area of the primary passageway is substantially the same as the sum of the cross-sectional areas of each secondary passageway.
67. The bifurcated stent defined in claim 29, wherein the distal end is flexiblewith respect to the remainder of the stent.
68. The bifurcated stent defined in claim 29, wherein the proximal end is flexible with respect to the remainder of the stent.
69. The bifurcated stent defined in claim 29, wherein the length of each of the primary passageway and the second passageways is substantially the same.
70. The bifurcated stent defined in claim 29, wherein the length of each of the primary passageway and the second passageways is different.
CA 2175722 1996-03-05 1996-05-03 Expandable stent and method for delivery of same Abandoned CA2175722A1 (en)

Priority Applications (47)

Application Number Priority Date Filing Date Title
CA 2175722 CA2175722A1 (en) 1996-05-03 1996-05-03 Expandable stent and method for delivery of same
CA002192520A CA2192520A1 (en) 1996-03-05 1996-12-10 Expandable stent and method for delivery of same
MYPI97000862A MY130279A (en) 1996-03-05 1997-03-04 Expandable stent
AT97904959T ATE258771T1 (en) 1996-03-05 1997-03-05 EXPANDABLE STENT
AT04016426T ATE363253T1 (en) 1996-03-05 1997-03-05 EXPANDABLE STENT
DE69727472T DE69727472T2 (en) 1996-03-05 1997-03-05 EXPANDABLE STENT
EP97904959A EP0888094B1 (en) 1996-03-05 1997-03-05 Expandable stent
EP00121964A EP1066804B1 (en) 1996-03-05 1997-03-05 Expandable stent
EP04016426A EP1477133B9 (en) 1996-03-05 1997-03-05 Expandable stent
CA002248716A CA2248716C (en) 1996-03-05 1997-03-05 Expandable stent and method for delivery of same
AT07004140T ATE471127T1 (en) 1996-03-05 1997-03-05 EXPANDABLE STENT
PCT/CA1997/000151 WO1997032543A1 (en) 1996-03-05 1997-03-05 Expandable stent and method for delivery of same
DE69705706T DE69705706T3 (en) 1996-03-05 1997-03-05 EXPANDABLE STENT
US09/142,508 US6217608B1 (en) 1996-03-05 1997-03-05 Expandable stent and method for delivery of same
DE69739913T DE69739913D1 (en) 1996-03-05 1997-03-05 Expandable stent
JP09531281A JP2001501493A (en) 1996-03-05 1997-03-05 Expandable stent and method of providing the stent
AU18644/97A AU1864497A (en) 1996-03-05 1997-03-05 Expandable stent and method for delivery of same
DE69729900T DE69729900T3 (en) 1996-03-05 1997-03-05 Expandable stent
AT97904958T ATE203151T1 (en) 1996-03-05 1997-03-05 EXPANDABLE STENT
PCT/CA1997/000152 WO1997032544A1 (en) 1996-03-05 1997-03-05 Expandable stent and method for delivery of same
AT00121964T ATE270861T1 (en) 1996-03-05 1997-03-05 EXPANDABLE STENT
JP53128297A JP4281851B2 (en) 1996-03-05 1997-03-05 Expandable stent
DE69737777T DE69737777T2 (en) 1996-03-05 1997-03-05 Expandable stent
AU18643/97A AU1864397A (en) 1996-03-05 1997-03-05 Expandable stent and method for delivery of same
EP97904958A EP0888093B2 (en) 1996-03-05 1997-03-05 Expandable stent
EP07004140A EP1790314B1 (en) 1996-03-05 1997-03-05 Expandable stent
IDP970684A ID16130A (en) 1996-03-05 1997-03-05 ARTIFICIAL OR MECHANICAL PIPES THAT CAN BE STRENGTHED
CA002248718A CA2248718A1 (en) 1996-03-05 1997-03-05 Expandable stent and method for delivery of same
US09/142,509 US6183506B1 (en) 1996-03-05 1997-03-05 Expandable stent and method for delivery of same
US09/462,461 US6796997B1 (en) 1996-03-05 1998-07-08 Expandable stent
AU56539/00A AU765228B2 (en) 1996-03-05 2000-09-06 Expandable stent and method for delivery of same technical field
US09/672,767 US6375677B1 (en) 1996-03-05 2000-09-29 Expandable stent and method for delivery of same
US09/672,768 US6758860B1 (en) 1996-03-05 2000-09-29 Expandable stent and method for delivery of same
US10/073,277 US6858037B2 (en) 1996-03-05 2002-02-13 Expandable stent and method for delivery of same
US10/190,818 US6881223B2 (en) 1996-03-05 2002-07-09 Expandable stent and method for delivery of same
US10/191,522 US6887264B2 (en) 1996-03-05 2002-07-10 Expandable stent and method for delivery of same
US10/761,459 US20040153141A1 (en) 1996-03-05 2004-01-22 Expandable stent and method for delivery of same
US10/850,397 US8075609B2 (en) 1996-03-05 2004-05-21 Expandable stent
US10/849,990 US7094255B2 (en) 1996-03-05 2004-05-21 Expandable stent and method for delivery of same
US11/419,895 US20060200228A1 (en) 1996-03-05 2006-05-23 Expandable Stent And Method For Delivery Of Same
US11/831,693 US20080021542A1 (en) 1996-03-05 2007-07-31 Expandable Stent And Method For Delivery Of Same
US11/840,098 US20080021536A1 (en) 1996-03-05 2007-08-16 Expandable stent and method for delivery of same
JP2007216325A JP5148947B2 (en) 1996-03-05 2007-08-22 Expandable stent
US12/252,478 US20090036974A1 (en) 1996-03-05 2008-10-16 Expandable stent and method for delivery of same
US12/419,453 US20090192590A1 (en) 1996-03-05 2009-04-07 Expandable stent and method for delivery of same
JP2011149044A JP2011245318A (en) 1996-03-05 2011-07-05 Expandable stent and method for delivery of the stent
JP2014140014A JP2014208287A (en) 1996-03-05 2014-07-07 Expandable stent and method for delivery of the same

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999040873A1 (en) 1998-02-12 1999-08-19 Marotta Thomas R Endovascular prosthesis
WO2000047134A1 (en) 1999-02-12 2000-08-17 Novo Rps Ulc Endovascular prosthesis
US6758860B1 (en) 1996-03-05 2004-07-06 Envysio Medical Devices Ulc Expandable stent and method for delivery of same
US6796997B1 (en) 1996-03-05 2004-09-28 Evysio Medical Devices Ulc Expandable stent
US7662409B2 (en) 1998-09-25 2010-02-16 Gel-Del Technologies, Inc. Protein matrix materials, devices and methods of making and using thereof
US8048142B2 (en) 2002-12-19 2011-11-01 Invatec S.R.L. Endolumenal prosthesis
US8075609B2 (en) 1996-03-05 2011-12-13 Evysio Medical Devices Ulc Expandable stent
US8153591B2 (en) 2003-08-26 2012-04-10 Gel-Del Technologies, Inc. Protein biomaterials and biocoacervates and methods of making and using thereof
US8465537B2 (en) 2003-06-17 2013-06-18 Gel-Del Technologies, Inc. Encapsulated or coated stent systems
US8529939B2 (en) 2003-12-08 2013-09-10 Gel-Del Technologies, Inc. Mucoadhesive drug delivery devices and methods of making and using thereof
US8623393B2 (en) 2002-04-29 2014-01-07 Gel-Del Technologies, Inc. Biomatrix structural containment and fixation systems and methods of use thereof
US10016534B2 (en) 2008-11-17 2018-07-10 Gel-Del Technologies, Inc. Protein biomaterial and biocoacervate vessel graft systems and methods of making and using thereof
US11890371B2 (en) 2007-12-26 2024-02-06 Petvivo Holdings, Inc. Biocompatible protein-based particles and methods thereof

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6758860B1 (en) 1996-03-05 2004-07-06 Envysio Medical Devices Ulc Expandable stent and method for delivery of same
US6796997B1 (en) 1996-03-05 2004-09-28 Evysio Medical Devices Ulc Expandable stent
US8075609B2 (en) 1996-03-05 2011-12-13 Evysio Medical Devices Ulc Expandable stent
WO1999040873A1 (en) 1998-02-12 1999-08-19 Marotta Thomas R Endovascular prosthesis
US7662409B2 (en) 1998-09-25 2010-02-16 Gel-Del Technologies, Inc. Protein matrix materials, devices and methods of making and using thereof
US8871267B2 (en) 1998-09-25 2014-10-28 Gel-Del Technologies, Inc. Protein matrix materials, devices and methods of making and using thereof
WO2000047134A1 (en) 1999-02-12 2000-08-17 Novo Rps Ulc Endovascular prosthesis
US8623393B2 (en) 2002-04-29 2014-01-07 Gel-Del Technologies, Inc. Biomatrix structural containment and fixation systems and methods of use thereof
US8048142B2 (en) 2002-12-19 2011-11-01 Invatec S.R.L. Endolumenal prosthesis
US8465537B2 (en) 2003-06-17 2013-06-18 Gel-Del Technologies, Inc. Encapsulated or coated stent systems
US8153591B2 (en) 2003-08-26 2012-04-10 Gel-Del Technologies, Inc. Protein biomaterials and biocoacervates and methods of making and using thereof
US9107937B2 (en) 2003-08-26 2015-08-18 Gel-Del Technologies, Inc. Wound treatments with crosslinked protein amorphous biomaterials
US9999705B2 (en) 2003-08-26 2018-06-19 Gel-Del Technologies, Inc. Protein biomaterials and biocoacervates and methods of making and using thereof
US8529939B2 (en) 2003-12-08 2013-09-10 Gel-Del Technologies, Inc. Mucoadhesive drug delivery devices and methods of making and using thereof
US11890371B2 (en) 2007-12-26 2024-02-06 Petvivo Holdings, Inc. Biocompatible protein-based particles and methods thereof
US10016534B2 (en) 2008-11-17 2018-07-10 Gel-Del Technologies, Inc. Protein biomaterial and biocoacervate vessel graft systems and methods of making and using thereof

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