IMPLANTABLE GRAFT AND METHODS OF MAKING SAME
First Claim
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1. An endoluminal covered-stent, comprising:
- a) a radially expandable stent having a proximal end, a distal end and an intermediate region, the radially expandable stent being comprised of a plurality of interconnected structural members defining a generally tubular stent member having a plurality of stent fenestrations and a plurality of attachment members associated with some of the plurality of interconnected structure members at one or more of the proximal end, distal end and intermediate region of the stent; and
b) a generally tubular thin film metal cover member having a plurality of microporous openings, 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 coupled 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,c) wherein the joined radially expandable stent and the generally tubular thin film metal cover member are capable of radial expansion together with one another.
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Accused Products
Abstract
The present invention relates to an implantable endoluminal graft 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
21 Claims
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1. An endoluminal covered-stent, comprising:
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a) a radially expandable stent having a proximal end, a distal end and an intermediate region, the radially expandable stent being comprised of a plurality of interconnected structural members defining a generally tubular stent member having a plurality of stent fenestrations and a plurality of attachment members associated with some of the plurality of interconnected structure members at one or more of the proximal end, distal end and intermediate region of the stent; and b) a generally tubular thin film metal cover member having a plurality of microporous openings, 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 coupled 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, c) 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, 12, 13, 14, 16, 17, 18, 19, 20, 21)
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15. 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; and b) a radially expandable tubular thin film metal cover member having a 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 generally tubular 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.
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Specification