ENDOPROSTHESIS HAVING FOOT EXTENSIONS
First Claim
1. An endoprosthesis for delivery in a body lumen comprising:
- a first set of interconnected strut members defining a first annular element, each strut member of the first annular element including a first end and a second end; and
a second set of interconnected strut members defining a second annular element, each strut member of the second annular element including a first end and a second end;
the first annular element and the second annular element aligned longitudinally adjacent to each other along a longitudinal axis and connected to each other at at least one connection location, the first and second annular elements being expandable between a delivery configuration and a deployed configuration;
at least one of the first and second 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 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 first end of selected circumferentially-adjacent strut members of the first annular element are interconnected to define apices proximate a first longitudinal side of the first annular element and the second end of selected circumferentially-adjacent strut members of the first annular element are interconnected to define apices proximate a second longitudinal side of the first annular element, and further wherein the first end of selected circumferentially-adjacent strut members of the second annular element are interconnected to define apices proximate a first longitudinal side of the second annular element and the second end of selected circumferentially-adjacent strut members of the second annular element are interconnected to define apices proximate a second longitudinal side of the second annular element.
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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.
16 Citations
14 Claims
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1. An endoprosthesis for delivery in a body lumen comprising:
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a first set of interconnected strut members defining a first annular element, each strut member of the first annular element including a first end and a second end; and a second set of interconnected strut members defining a second annular element, each strut member of the second annular element including a first end and a second end; the first annular element and the second annular element aligned longitudinally adjacent to each other along a longitudinal axis and connected to each other at at least one connection location, the first and second annular elements being expandable between a delivery configuration and a deployed configuration; at least one of the first and second 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 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 first end of selected circumferentially-adjacent strut members of the first annular element are interconnected to define apices proximate a first longitudinal side of the first annular element and the second end of selected circumferentially-adjacent strut members of the first annular element are interconnected to define apices proximate a second longitudinal side of the first annular element, and further wherein the first end of selected circumferentially-adjacent strut members of the second annular element are interconnected to define apices proximate a first longitudinal side of the second annular element and the second end of selected circumferentially-adjacent strut members of the second annular element are interconnected to define apices proximate a second longitudinal side of the second annular element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification