Implantable graft and methods of making same
First Claim
1. An endoluminal covered-stent including a radially expandable stent having a proximal end, a distal end and an intermediate region between the proximal end and the distal end and at least one of a plurality of attachment members configured to attach to a metal stent cover member, the radially expandable stent having a plurality of interconnected structural members and a plurality of stent fenestrations, the improvement comprising:
- a) the metal stent cover member being comprised of a generally tubular thin film metal cover member having a plurality of microporous openings and a thickness between about 0.1μ
to about 20μ
, wherein each of the plurality of microporous openings has an open surface area less than an open surface area of each of the plurality of stent fenestrations, the generally tubular thin film metal cover member is concentrically joined to at least one of a luminal surface or an abluminal surface of the stent and joined to the stent only at the plurality of attachment members, such that the generally tubular thin film metal cover member at least partially occludes the plurality of stent fenestrations; and
b) wherein the joined radially expandable stent and the generally tubular thin film metal cover member are capable of radial expansion together with one another.
3 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to an implantable endoluminal graft. The implantable endoluminal graft is comprised of a microporous thin-film metal covering having a plurality of openings and a structural support element underlying and physically attached to the microporous thin-film metal covering, the microporous thin-film metal covering having shape memory properties.
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Citations
15 Claims
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1. An endoluminal covered-stent including a radially expandable stent having a proximal end, a distal end and an intermediate region between the proximal end and the distal end and at least one of a plurality of attachment members configured to attach to a metal stent cover member, the radially expandable stent having a plurality of interconnected structural members and a plurality of stent fenestrations, the improvement comprising:
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a) the metal stent cover member being comprised of a generally tubular thin film metal cover member having a plurality of microporous openings and a thickness between about 0.1μ
to about 20μ
, wherein each of the plurality of microporous openings has an open surface area less than an open surface area of each of the plurality of stent fenestrations, the generally tubular thin film metal cover member is concentrically joined to at least one of a luminal surface or an abluminal surface of the stent and joined to the stent only at the plurality of attachment members, such that the generally tubular thin film metal cover member at least partially occludes the plurality of stent fenestrations; andb) wherein the joined radially expandable stent and the generally tubular thin film metal cover member are capable of radial expansion together with one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 15)
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12. An endoluminal covered-stent, comprising:
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a. a radially expandable stent having a plurality of circumferential structural members longitudinally interconnected by a plurality of interconnecting members and a plurality of stent fenestrations bounded by circumferential structural members and interconnecting members, and a plurality of attachment members coupled to at least one of the plurality of circumferential structural members or at least one of the plurality of interconnecting members; b. a radially expandable tubular thin film metal cover member having a thickness between about 0.1μ
to about 20μ and
plurality of openings passing through wall surfaces thereof, wherein each of the plurality of openings has an open surface area less than an open surface area of each of the plurality of stent fenestrations, the tubular thin film cover member being positioned to cover at least one of a luminal surface or an abluminal surface of the stent such that the radially expandable tubular thin film metal cover member at least partially occludes the plurality of stent fenestrations and wherein the generally tubular thin film metal cover member is thermally joined only to at least some of the plurality of attachment members; andc. wherein the joined radially expandable stent and the generally tubular thin film metal cover member are capable of radial expansion together with one another and have compatible degrees of foreshortening upon radial expansion of the joined covered-stent. - View Dependent Claims (13, 14)
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Specification