Intraluminal graft

• US 6,565,596 B1
• Filed: 09/09/1999
• Issued: 05/20/2003
• Est. Priority Date: 09/30/1993
• Status: Expired due to Term

• Current Assignee: W. L. Gore & Associates (W.L. Gore & Associates)
• Original Assignee: Endogad Research Pty Limited
• Inventors: Yu, Weiyun, White, Geoffrey H.
• Primary Examiner(s): Milano, Michael J.
• Assistant Examiner(s): PHANIJPHAND, GWEN G
• Application Number:
  US09/392,655
• Time in Patent Office: 1,349 Days
• Field of Search: 623/1.1, 623/1.11, 623/1.12, 623/1.13, 623/1.15, 623/1.22
• US Class Current: 623/1.13
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/86 Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped

Abstract

An intraluminal graft includes a tubular graft body extending along a cylindrical axis, a plurality of wires spaced apart from each other and arranged to circumferentially reinforce said tubular graft body along a substantial portion of its length, and a body surface including an inner surface region and an outer surface region. The body surface defines a plurality of apertures extending from an exterior space to an interior space, and a first portion of a first wire is in the interior space while a second portion of the first wire is in the exterior space.

Claims

1. An intraluminal graft comprising:

(1) a tubular graft body, said tubular graft body having a tubular shape extending along a cylindrical axis from a tubular graft body first end to a tubular graft body second end, said tubular graft body having a tubular graft body length defined by a distance between said tubular graft body first end and said tubular graft body second end;

(2) a plurality of wires spaced apart from one another;

(3) wherein said plurality of wires are arranged relative to said tubular graft body to circumferentially reinforce said tubular graft body along a substantial portion of its length;

(4) said tubular graft body has a body surface comprising an inner surface region and an outer surface region, material forming said tubular graft body is between said inner surface region and said outer surface region, said inner surface region defines an interior space inside of said inner surface region, and said outer surface region defines an exterior space exterior to said outer surface region;

(5) said body surface defines a plurality of apertures extending from said exterior space to said interior space;

(6) a first wire of said plurality of wires comprises a first wire portion and a second wire portion;

(7) said first wire extends through one of said plurality of apertures;

(8) said first wire portion is in said interior space; and

(9) said second wire portion is in said exterior space.

2. The intraluminal graft according to claim 1 wherein:

(10) said first wire extends through multiple ones of said plurality of apertures and comprises multiple interior wire portions and multiple exterior wire portions;

(11) each one of said interior wire portions is in said interior space;

(12) each one of said exterior wire portions is in said exterior space; and

(13) each one of said interior wire portions is separated from any other interior wire portion by at least one of said exterior wire portions.

3. An intraluminal graft comprising:

(1) a tubular graft body, said tubular graft body having a tubular shape extending along a cylindrical axis from a tubular graft body first end to a tubular graft body second end, said tubular graft body having a tubular graft body length defined by a distance between said tubular graft body first end and said tubular graft body second end;

(2) a plurality of wires spaced apart from one another;

(3) wherein said plurality of wires are arranged relative to said tubular graft body to circumferentially reinforce said tubular graft body along a substantial portion of its length;

(4) said tubular graft body has a surface comprising an inner surface region and an outer surface region, material forming said tubular graft body is between said inner surface region and said outer surface region, said inner surface region defines an interior space inside of said inner surface region, and said outer surface region defines an exterior space exterior to said outer surface region;

(5) a first wire of said plurality of wires comprises

(a) a first end region including a first wire first end,

(b) a middle region, and

(c) a second end region including a first wire second end;

(6) said first end region is secured to said second end region;

(7) said middle region forms a loop;

(8) said first end region comprises a first helical region formed in a helical shape;

(9) said second end region comprises a second helical region formed in a helical shape;

(10) said first and second helical regions form a double helix; and

(11) surfaces of said first and second helical regions contact one another, thereby securing said first end region to said second end region.

4. An intraluminal graft comprising:

(1) a tubular graft body, said tubular graft body having a tubular shape extending along a cylindrical axis from a tubular graft body first end to a tubular graft body second end, said tubular graft body having a tubular graft body length defined by a distance between said tubular graft body first end and said tubular graft body second end;

(2) a plurality of wires spaced apart from one another;

(3) wherein said plurality of wires are arranged relative to said tubular graft body to circumferentially reinforce said tubular graft body along a substantial portion of its length;

(4) said tubular graft body has a surface comprising an inner surface region and an outer surface region, material forming said tubular graft body is between said inner surface region and said outer surface region, said inner surface region defines an interior space inside of said inner surface region, and said outer surface region defines an exterior space exterior to said outer surface region;

(5) a first wire of said plurality of wires comprises

(a) a first end region including a first wire first end,

(b) a middle region, and

(c) a second end region including a first wire second end;

(6) said first end region is secured to said second end region;

(7) said middle region forms a loop; and

(8) sections of each of said first end region and said second end region are twisted about one another, thereby securing said first end region to said second end region.

5. The intraluminal graft according to claim 4, wherein:

(9) said sections do not include either said first wire first end or said first wire second end.

6. An intraluminal graft comprising:

(1) a tubular graft body, said tubular graft body having a tubular shape extending along a cylindrical axis from a tubular graft body first end to a tubular graft body second end, said tubular graft body having a tubular graft body length defined by a distance between said tubular graft body first end and said tubular graft body second end;

(2) a plurality of wires spaced apart from one another;

(3) wherein said plurality of wires are arranged relative to said tubular graft body to circumferentially reinforce said tubular graft body along a substantial portion of its length;

(4) said tubular graft body has a surface comprising an inner surface region and an outer surface region, material forming said tubular graft body is between said inner surface region and said outer surface region, said inner surface region defines an interior space inside of said inner surface region, and said outer surface region defines an exterior space exterior to said outer surface region;

(5) a first wire of said plurality of wires forms a loop which encircles said interior space;

(6) said first wire has apices that extend in a direction along said cylindrical axis beyond said tubular graft body first end;

(7) said first wire extends in a direction along said cylindrical axis such that alternate apices of said first wire are beyond said first end of said tubular graft body;

(8) a second wire of said plurality of wires is adjacent said first wire;

(9) said first wire is disposed, on average, further from a center of said tubular graft body than said second wire;

(10) said first wire extends along said cylindrical axis for a first wire axial dimension;

(11) said second wire extends along said cylindrical axis for a second wire axial dimension; and

(12) said first wire axial dimension is greater than said second wire axial dimension.

7. An intraluminal graft comprising:

(1) a tubular graft body, said tubular graft body having a tubular shape extending along a cylindrical axis from a tubular graft body first end to a tubular graft body second end, said tubular graft body having a tubular graft body length defined by a distance between said tubular graft body first end and said tubular graft body second end;

(2) a plurality of wires spaced apart from one another;

(3) wherein said plurality of wires are arranged relative to said tubular graft body to circumferentially reinforce said tubular graft body along a substantial portion of its length;

(4) a first wire of said plurality of wires is adjacent said first end of said tubular graft body first end; and

(5) said first wire is more closely spaced to an adjacent wire of said plurality of wires than a spacing between adjacent wires of said plurality of wires near a center of said tubular graft body.