IP Library › Granted Patent US 7,691,141
Granted Patent B2
US 7,691,141 · App. 11/237,587 · Granted Apr 6, 2010

Intraluminal stent graft

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Quick Facts
Patent No.
US 7,691,141
App. No.
11/237,587
Granted
Apr 6, 2010
Kind
B2
Abstract

A method of making an tubular intraluminal graft in the form of a tubular diametrically adjustable stent having a tubular covering of porous expanded polytetrafluoroethylene which is less than 0.10 mm thick. The covering may be on the exterior surface of the stent, or on the interior surface of the stent, or both. The covering may be affixed to the stent by an adhesive which is preferably fluorinated ethylene propylene.

Claims (48)

1. A tubular intraluminal stent graft comprising:

a) a tubular stent having a wall with a multiplicity of openings, and an exterior surface and a luminal surface;

b) a tubular covering of porous expanded polytetrafluoroethylene film, said covering being provided on at least one surface of the stent and covering at least a portion of the multiplicity of openings;

c) wherein said stent graft includes a non-porous layer of a thermoplastic polymer.

2. A tubular intraluminal stent graft according to claim 1 wherein the thermoplastic polymer comprises a thermoplastic fluoropolymer.

3. A tubular intraluminal stent graft according to claim 2 wherein the thermoplastic fluoropolymer comprises fluorinated ethylene propylene.

4. A tubular intraluminal stent graft according to claim 1 wherein the tubular stent comprises a self expanding stent.

5. A tubular intraluminal stent graft according to claim 4 wherein the self expanding stent comprises nitinol.

6. A tubular intraluminal stent graft according to claim 1 wherein the tubular stent comprises a balloon expandable stent.

7. A tubular intraluminal stent graft according to claim 1 wherein the covering is provided on the luminal surface of the stent.

8. A tubular intraluminal stent graft according to claim 1 wherein the covering is provided on the exterior surface of the stent.

9. A tubular intraluminal stent graft according to claim 1 wherein the covering is provided on the exterior and luminal surfaces of the stent.

10. A tubular intraluminal stent graft comprising:

a) a tubular stent having a wall with a multiplicity of openings, and an exterior surface and a luminal surface;

b) a tubular covering of porous expanded polytetrafluoroethylene film, said covering being provided on at least one surface of the stent and covering at least a portion of the multiplicity of openings;

c) wherein said covering includes a non-porous layer of a thermoplastic polymer.

11. A tubular intraluminal stent graft according to claim 10 wherein the thermoplastic polymer comprises a thermoplastic fluoropolymer.

12. A tubular intraluminal stent graft according to claim 11 wherein the thermoplastic fluoropolymer comprises fluorinated ethylene propylene.

13. A tubular intraluminal stent graft according to claim 10 wherein the tubular stent comprises a self expanding stent.

14. A tubular intraluminal stent graft according to claim 13 wherein the self expanding stent comprises nitinol.

15. A tubular intraluminal stent graft according to claim 10 wherein the tubular stent comprises a balloon expandable stent.

16. A tubular intraluminal stent graft according to claim 10 wherein the covering is provided on the luminal surface of the stent.

17. A tubular intraluminal stent graft according to claim 10 wherein the covering is provided on the exterior surface of the stent.

18. A tubular intraluminal stent graft according to claim 10 wherein the covering is provided on the exterior and luminal surfaces of the stent.

19. A tubular intraluminal stent graft comprising:

a) a tubular stent having a wall with a multiplicity of openings, and an exterior surface and a luminal surface;

b) a tubular covering of porous expanded polytetrafluoroethylene film, said covering being provided on at least one surface of the stent and covering at least a portion of the multiplicity of openings;

c) wherein said film includes a non-porous layer of a thermoplastic polymer.

20. A tubular intraluminal stent graft according to claim 19 wherein the thermoplastic polymer comprises a thermoplastic fluoropolymer.

21. A tubular intraluminal stent graft according to claim 20 wherein the thermoplastic fluoropolymer comprises fluorinated ethylene propylene.

22. A tubular intraluminal stent graft according to claim 19 wherein the tubular stent comprises a self expanding stent.

23. A tubular intraluminal stent graft according to claim 22 wherein the self expanding stent comprises nitinol.

24. A tubular intraluminal stent graft according to claim 19 wherein the tubular stent comprises a balloon expandable stent.

25. A tubular intraluminal stent graft according to claim 19 wherein the covering is provided on the luminal surface of the stent.

26. A tubular intraluminal stent graft according to claim 19 wherein the covering is provided on the exterior surface of the stent.

27. A tubular intraluminal stent graft according to claim 19 wherein the covering is provided on the exterior and luminal surfaces of the stent.

28. A tubular intraluminal stent graft comprising:

a) a stent having a tubular form and having adjacent stent elements with spaces between the adjacent stent elements, and further having an exterior surface and a luminal surface;

b) a tubular covering of porous expanded polytetrafluoroethylene film, said covering being provided on at least one surface of the stent and covering at least a portion of the space between the adjacent stent elements;

c) wherein said tubular covering includes a thermoplastic polymer that renders it non-porous.

29. A tubular intraluminal stent graft according to claim 28 wherein the thermoplastic polymer comprises a thermoplastic fluoropolymer.

30. A tubular intraluminal stent graft according to claim 29 wherein the thermoplastic fluoropolymer comprises fluorinated ethylene propylene.

31. A tubular intraluminal stent graft according to claim 28 wherein the tubular stent comprises a self expanding stent.

32. A tubular intraluminal stent graft according to claim 31 wherein the self expanding stent comprises nitinol.

33. A tubular intraluminal stent graft according to claim 28 wherein the tubular stent comprises a balloon expandable stent.

34. A tubular intraluminal stent graft according to claim 28 wherein the covering is provided on the luminal surface of the stent.

35. A tubular intraluminal stent graft according to claim 28 wherein the covering is provided on the exterior surface of the stent.

36. A tubular intraluminal stent graft according to claim 28 wherein the covering is provided on the exterior and luminal surfaces of the stent.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 21, 2005
From: LEWIS, JAMES D; MYERS, DAVID J; HOUSE, WAYNE D
To: GORE ENTERPRISE HOLDINGS, INC.
Reel/Frame 017386/0783 →