Endoprosthesis having struts linked by foot extensions
First Claim
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1. An endoprosthesis for delivery in a body lumen comprising:
- a web structure defining an essentially tubular body expandable from a contracted configuration to an expanded configuration;
a plurality of longitudinally adjacent web rings defining the web structure;
a plurality of sequentially adjoined web elements defining the web rings, the web elements being disposed substantially parallel to a longitudinal axis of the essentially tubular body when in the contracted configuration, pairs of the web elements being sequentially adjoined at junction bends;
wherein a first junction bend in a first web ring is connected to a second junction bend in a second web ring by a connector having a first strut and a second strut, the first strut and second strut being essentially parallel one to the other with a space between at least a portion of the first strut and the second strut;
wherein a first foot extension joins the first to the second struts;
wherein the first foot extension includes a first member extending from the first strut and providing a sole portion of the first foot extension, and a second member interposed between the sole portion and the second strut and providing a toe portion of the first foot extension; and
wherein the sole portion has an essentially rectilinear shape and the toe portion has an essentially arcuate shape.
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Abstract
The present invention relates to an endoprosthesis having a plurality of web rings coupled by connectors, which include two or more essentially parallel struts and a foot extension protruding from one of the struts. An endoprosthesis constructed according to the principles of the present invention provides an elevated degree of scaffolding to a body lumen while retaining an acceptable degree of flexibility.
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Citations
14 Claims
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1. An endoprosthesis for delivery in a body lumen comprising:
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a web structure defining an essentially tubular body expandable from a contracted configuration to an expanded configuration; a plurality of longitudinally adjacent web rings defining the web structure; a plurality of sequentially adjoined web elements defining the web rings, the web elements being disposed substantially parallel to a longitudinal axis of the essentially tubular body when in the contracted configuration, pairs of the web elements being sequentially adjoined at junction bends; wherein a first junction bend in a first web ring is connected to a second junction bend in a second web ring by a connector having a first strut and a second strut, the first strut and second strut being essentially parallel one to the other with a space between at least a portion of the first strut and the second strut; wherein a first foot extension joins the first to the second struts; wherein the first foot extension includes a first member extending from the first strut and providing a sole portion of the first foot extension, and a second member interposed between the sole portion and the second strut and providing a toe portion of the first foot extension; and wherein the sole portion has an essentially rectilinear shape and the toe portion has an essentially arcuate shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification