Endoprosthesis having foot extensions
First Claim
1. An endoprosthesis for delivery in a body lumen comprising:
- a plurality of annular elements, said annular elements composed of a plurality of interconnected strut members having a first end and a second end;
at least one of the annular elements including a foot extension extending between at least one pair of circumferentially-adjacent strut members, the foot extension including a first foot portion extending circumferentially from the first end of one of the circumferentially-adjacent foot strut members of the pair and a second foot portion extending circumferentially from the first end of the other of the circumferentially-adjacent strut members, the first and second foot portions joined at a toe portion of the foot extension; and
wherein the plurality of annular elements are interconnected to form a generally tubular structure having a first end and a second end, wherein in a deployed configuration, the first end having a generally larger expanded diameter than the expanded diameter of the second end.
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Accused Products
Abstract
Endoprosthesis, such as a stent, includes at least one annular element defined by a first set of strut members interconnected to define apices proximate opposite sides of the annular element. The annular element further includes a foot extension extending between at least one pair of circumferentially-adjacent strut members. The foot extension has first and second foot portions extending circumferentially from corresponding ends of the circumferentially-adjacent strut members, and are contoured to provide at least two areas of flexure. The first and second foot portions are joined at a toe portion of the foot extension, and define a circumferentially-directed apex between the pair of circumferentially-adjacent strut members. Preferably, at least one or more additional annular elements, each defined by interconnected strut members, are provided. The annular elements are generally expandable between a delivery configuration and a deployed configuration. The annular elements are longitudinally aligned and connected at connection locations. Preferably, each connection location includes a foot extension, such as by an overlapping pattern between the longitudinally-adjacent annular elements or by a connector extending therebetween.
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Citations
16 Claims
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1. An endoprosthesis for delivery in a body lumen comprising:
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a plurality of annular elements, said annular elements composed of a plurality of interconnected strut members having a first end and a second end; at least one of the annular elements including a foot extension extending between at least one pair of circumferentially-adjacent strut members, the foot extension including a first foot portion extending circumferentially from the first end of one of the circumferentially-adjacent foot strut members of the pair and a second foot portion extending circumferentially from the first end of the other of the circumferentially-adjacent strut members, the first and second foot portions joined at a toe portion of the foot extension; and wherein the plurality of annular elements are interconnected to form a generally tubular structure having a first end and a second end, wherein in a deployed configuration, the first end having a generally larger expanded diameter than the expanded diameter of the second end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An endoprosthesis for delivery in a body lumen comprising:
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a plurality of annular elements, said annular elements composed of a plurality of interconnected strut members having a first end and a second end; at least one of the annular elements including a foot extension extending between at least one pair of circumferentially-adjacent strut members, the foot extension including a first foot portion extending circumferentially from the first end of one of the circumferentially-adjacent foot strut members of the pair and a second foot portion extending circumferentially from the first end of the other of the circumferentially-adjacent strut members, the first and second foot portions joined at a toe portion of the foot extension; and wherein the plurality of annular elements are interconnected to form a generally tubular structure having a first end and a second end, wherein in a deployed configuration, the first end having a generally larger expanded diameter than the expanded diameter of the second end; wherein a radiopaque marker is disposed within at least one eyelet formed on at least one end of the tubular member. - View Dependent Claims (16)
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Specification