Stent-graft with rails
First Claim
1. A stent-graft comprising:
- an elongated stent portion extending about an axis;
a graft portion being at least partially coextensive with said stent portion; and
at least one rail element extending along a length of said stent-graft, each rail element being movably coupled to said stent portion and/or said graft portion such that at least a portion of said stent portion and said graft portion are freely movable along a portion and relative to each rail element.
2 Assignments
0 Petitions
Accused Products
Abstract
A stent-graft with increased longitudinal flexibility that is deployed within a body lumen for supporting the lumen and repairing luminal aneurysms. In a preferred embodiment, the stent-graft is located and expanded within a blood vessel to repair aortic aneurysms. The stent-graft is comprised of an expandable stent portion, an expandable graft portion and at least one elongated rail. The stent portion and graft portion are moveable between the terminal ends of the rail(s) and relative to the rails so that it can conform to the shape of a vessel in which it is deployed. The stent-graft provides increased longitudinal flexibility within a vessel. Also, the stent-graft of the present invention does not kink after expansion, and thus, eliminates the potential for the graft portion occluding the blood flow lumen of the vessel in which it is deployed. Moreover, the wear on the graft is reduced and its longevity increased.
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Citations
53 Claims
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1. A stent-graft comprising:
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an elongated stent portion extending about an axis;
a graft portion being at least partially coextensive with said stent portion; and
at least one rail element extending along a length of said stent-graft, each rail element being movably coupled to said stent portion and/or said graft portion such that at least a portion of said stent portion and said graft portion are freely movable along a portion and relative to each rail element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26)
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27. A stent-graft for positioning within a portion of a mammalian body, said stent-graft comprising:
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a graft portion extending about an elongated axis;
an elongated stent portion being at least partially coextensive with and surrounding at least a portion of said graft portion, said stent portion including a plurality of support elements spaced from each other along the length of said stent graft; and
at least one rail element extending along a length of said stent-graft, said at least one rail element slidably coupled to said stent portion such that said stent portion and graft portion are movable along said at least one rail element and said stent portion is moveable relative to said graft portion. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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Specification