CA2497746A1 - Bifurcated stent - Google Patents

Bifurcated stent Download PDF

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Publication number
CA2497746A1
CA2497746A1 CA002497746A CA2497746A CA2497746A1 CA 2497746 A1 CA2497746 A1 CA 2497746A1 CA 002497746 A CA002497746 A CA 002497746A CA 2497746 A CA2497746 A CA 2497746A CA 2497746 A1 CA2497746 A1 CA 2497746A1
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Canada
Prior art keywords
branch
section
bifurcated stent
stent
branch portion
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Granted
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CA002497746A
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French (fr)
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CA2497746C (en
Inventor
Robert Z. Obara
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Boston Scientific Ltd Bermuda
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Individual
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Application filed by Individual filed Critical Individual
Publication of CA2497746A1 publication Critical patent/CA2497746A1/en
Application granted granted Critical
Publication of CA2497746C publication Critical patent/CA2497746C/en
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Expired - Fee Related legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
    • A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
    • A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
    • A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
    • A61B17/12118—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm for positioning in conjunction with a stent
    • 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
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2002/065—Y-shaped blood vessels
    • A61F2002/067—Y-shaped blood vessels modular
    • 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
    • A61F2002/823—Stents, different from stent-grafts, adapted to cover an aneurysm
    • 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
    • A61F2002/828—Means for connecting a plurality of stents allowing flexibility of the whole 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
    • A61F2/82—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
    • A61F2002/91533—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 characterised by the phase between adjacent bands
    • 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
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0058—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements soldered or brazed or welded
    • 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
    • A61F2250/0015—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 density or specific weight

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Transplantation (AREA)
  • Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cardiology (AREA)
  • Reproductive Health (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Neurosurgery (AREA)
  • Prostheses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Inorganic Insulating Materials (AREA)
  • Thermistors And Varistors (AREA)
  • Laser Surgery Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Materials For Medical Uses (AREA)

Abstract

A bifurcated stent (10) comprises a body portion (16), a first branch portio n (12), a second branch portion (14), a first pivot portion (28) and a second pivot portion (28) constructed from a common continuous sheet of stent material. The body portion, first branch portion and second branch portion provided with a substantially tubular shape, the tubular shape of each defin es a lumen respectively therethrough. The lumen defined by the body portion is in fluid communication with the lumen defined by the first branch portion and t he second branch portion. The first branch portion is pivotally engaged to an e nd of the body portion by the first pivot portion. The second branch portion is pivotally engaged to an end of the body portion by the second pivot portion.

Claims (30)

1. A bifurcated stent constructed comprising:
a body portion, a first branch portion, a second branch portion, a first pivot portion and a second pivot portion; the body portion, the first branch portion, the second branch portion, the first pivot portion and the second pivot portion constructed from a common continuous sheet of stent material, each of the body portion, first branch portion and second branch portion provided with a substantially tubular shape and defining a lumen respectively therethrough, the lumen defined by the body portion being in fluid communication with the lumen defined by the first branch portion and the second branch portion, the first branch portion being pivotally engaged to an end of the body portion by the first pivot portion, the second branch portion being pivotally engaged to an end of the body portion by the second pivot portion.
2. The bifurcated stent of claim 1 wherein at least a portion of at least one of the body portion, the first branch portion and the second branch portion constructed and arranged to be balloon expandable, self expandable or hybrid expandable.
3. The bifurcated stent of claim 1 wherein the first branch portion defines and angle with the body portion, the angle being about 0 degrees to about 180 degrees.
4. The bifurcated stent of claim 1 wherein the first branch portion defines and angle with the body portion, the angle being about 0 degrees to about 90 degrees.
5. The bifurcated stent of claim 1 wherein the second branch portion defines and angle with the body portion, the angle being about 0 degrees to about 180 degrees.
6. The bifurcated stent of claim 1 wherein the second branch portion defines.
and angle with the body portion, the angle being about 0 degrees to about 180 degrees.
7. The bifurcated stent of claim 1 wherein the first branch portion and the second branch portion are constructed and arranged to at least partially engage the carina of a vessel bifurcation.
8. The bifurcated stent of claim 1 wherein the sheet of stent material is at least partially constructed form at least one material of the group consisting of nickel, titanium, nickel-titanium alloys, stainless steel, stainless steel alloys, tantalum and any combinations thereof.
9. The bifurcated stent of claim 1 wherein the sheet of stent material defines a pattern of interconnected strut members, adjacent interconnected strut members defuse openings therethrough.
10. The bifurcated stent of claim 9 wherein the pattern of interconnected struts defines at least one first area of interconnected strut members and at least one second area of interconnected strut members the at least one first area having a greater density of stent material than the at least one second area.
11. The bifurcated stent of claim 10 wherein the first branch portion and the second branch portion are each at least partially defined by the at least one first area and the at least one second area.
12. The bifurcated stent of claim 11 wherein the first branch portion and the second branch portion are constructed and arranged to at least partially engage a vessel bifurcation, when the first branch portion and the second branch portion are at least partially engaged to the vessel bifurcation the at least one first area of the first branch portion and the second branch portion is positioned immediately adjacent to a carina region of the vessel bifurcation.
13. The bifurcated stent of claim 1 wherein the sheet of stent material defines a body section, a first branch section and a second branch section, the body section constructed and arranged to be formed into the body portion, the first branch section constructed and arranged to be formed into the first branch portion and the second branch section constructed and arranged to be formed into the second branch portion.
14. The bifurcated stent of claim 13 wherein the body section of the sheet defines a first body section end and a second body section end, the body portion being provided with the substantially tubular shape by engaging the first body section end and the second body section end one to the other.
15. The bifurcated stent of claim 14 wherein the first body section end and the second body section end are at least partially overlappingly and removably engaged one to the other.
16. The bifurcated stent of claim 14 wherein the first body section end and the second body section end are fixedly engaged one to the other.
17. The bifurcated stent of claim 13 wherein the first branch section of the sheet defines a first branch section end and a second first branch section end, the first branch portion being provided with the substantially tubular shape by engaging the first branch section end and the second branch section end one to the other.
18. The bifurcated stent of claim 17 wherein the first branch section end and the second branch section end are at least partially overlappingly and removably engaged one to the other.
19. The bifurcated stent of claim 17 wherein the first branch section end and the second branch section end are fixedly engaged one to the other.
20. The bifurcated stent of claim 13 wherein the second branch section of the sheet defines a first branch section end and a second branch section end, the second branch portion being provided with the substantially tubular shape by engaging the first branch section end and the second branch section end one to the other.
21. The bifurcated stent of claim 20 wherein the first branch section end and the second branch section end are at least partially overlappingly and removably engaged one to the other.
22. The bifurcated stent of claim 20 wherein the first branch section end and the second branch section end are fixedly engaged one to the other.
23. The bifurcated stent of claim 9 wherein each of the first pivot connection and the second pivot connection comprise at least one strut member.
24. The bifurcated stent of claim 1 wherein the first pivot connection is defined by a section of the sheet of stent material extending between the body portion and the first branch portion when the body portion and the first branch portion are respectively provided with the substantially tubular form, the first pivot connection having a circumferential length less than that of the body portion and the first branch portion.
25. The bifurcated stent of claim 1 wherein the second pivot connection is defined by a section of the sheet of stent material extending between the body portion and the second branch portion when the body portion and the second branch portion are respectively provided with the substantially tubular form, the second pivot connection having a circumferential length less than that of the body portion and the second branch portion.
26. The bifurcated stent of claim 1 wherein at least one of the first branch portion and the second branch portion comprise at least one aneurysm flap, the at least one aneurysm flap constructed and arranged to be positioned immediately adjacent to a carina of a vessel bifurcation.
27. The bifurcated stent of claim 26 wherein the at least one aneurysm flap is constructed of a shape memory material.
28. The bifurcated stent of claim 27 wherein the at least one aneurysm flap comprises a first aneurysm flap and a second aneurysm flap, the first aneurysm flap being pivotally engaged to only the first branch portion, the second aneurysm flap being pivotally engaged to only the second branch portion.
29. The bifurcated stent of claim 28 wherein the first aneurysm flap and the second aneurysm flap are each moveable from a open position and a closed position, in the closed position the first aneurysm flap and the second aneurysm flap being overlappingly engaged to one another over the carina of the vessel bifurcation.
30. A method of manufacturing a bifurcated stent comprising the steps of:
providing a single sheet of stent material with a body section, the body section having a primary body end and a secondary body end; a first branch section, the first branch section having a primary first branch end and a secondary first branch end; a second branch section, the second branch section having a primary second branch end and a secondary second branch end; a first connector section; and a second connector section wherein the first connector section extends between a first end of the body portion to an adjacent end of the first branch section, and the second connector section extends between the first end of the body portion to an adjacent end of the second branch section;
providing the single sheet of stent material with a predetermined pattern of interconnected struts and openings defined therebetween, each of the first connector section and the second connector section comprising at least one interconnected strut;
engaging the primary body end and the secondary body end one to the other to provide a body portion of the stent;
engaging the primary first branch end and the secondary first branch end one to the other to provide a first branch portion of the stent; and engaging the primary second branch end and the secondary second branch end one to the other to provide a second branch portion of the stent.
CA2497746A 2003-01-15 2003-10-02 Bifurcated stent Expired - Fee Related CA2497746C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/342,756 US7169177B2 (en) 2003-01-15 2003-01-15 Bifurcated stent
US10/342,756 2003-01-15
PCT/US2003/031355 WO2004064684A1 (en) 2003-01-15 2003-10-02 Bifurcated stent

Publications (2)

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CA2497746A1 true CA2497746A1 (en) 2004-08-05
CA2497746C CA2497746C (en) 2011-01-04

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CA2497746A Expired - Fee Related CA2497746C (en) 2003-01-15 2003-10-02 Bifurcated stent

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US (1) US7169177B2 (en)
EP (1) EP1585461B1 (en)
JP (1) JP2006512984A (en)
AT (1) ATE415918T1 (en)
AU (1) AU2003277260A1 (en)
CA (1) CA2497746C (en)
DE (1) DE60325097D1 (en)
WO (1) WO2004064684A1 (en)

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