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; and
a third set of interconnected strut members defining a third annular element, each strut member of the third annular element including a first end and a second end;
each annular element aligned longitudinally adjacent to each other along a longitudinal axis and connected to each other at at least one connection location, each annular element being expandable between a delivery configuration and a deployed configuration;
each 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 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 andwherein the first end of selected circumferentially-adjacent strut members of each annular element are interconnected to define apices proximate a first longitudinal side of the annular element and the second end of selected circumferentially-adjacent strut members are interconnected to define apices proximate a second longitudinal side of the annular element, wherein at least one apex of each annular element is defined by a direct interconnection between circumferentially-adjacent strut members, andfurther wherein each connection location is defined by the interconnection of the foot extension of one annular element and the apex defined by the direct interconnection between circumferentially-adjacent strut members of a longitudinally-adjacent 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.
148 Citations
17 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; and a third set of interconnected strut members defining a third annular element, each strut member of the third annular element including a first end and a second end; each annular element aligned longitudinally adjacent to each other along a longitudinal axis and connected to each other at at least one connection location, each annular element being expandable between a delivery configuration and a deployed configuration; each 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 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 each annular element are interconnected to define apices proximate a first longitudinal side of the annular element and the second end of selected circumferentially-adjacent strut members are interconnected to define apices proximate a second longitudinal side of the annular element, wherein at least one apex of each annular element is defined by a direct interconnection between circumferentially-adjacent strut members, and further wherein each connection location is defined by the interconnection of the foot extension of one annular element and the apex defined by the direct interconnection between circumferentially-adjacent strut members of a longitudinally-adjacent annular element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. 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; and a third set of interconnected strut members defining a third annular element, each strut member of the third annular element including a first end and a second end; each annular element aligned longitudinally adjacent to each other along a longitudinal axis and connected to each other at at least one connection location, each annular element being expandable between a delivery configuration and a deployed configuration; each 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 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 each annular element are interconnected to define apices proximate a first longitudinal side of the annular element and the second end of selected circumferentially-adjacent strut members are interconnected to define apices proximate a second longitudinal side of the annular element, and further wherein each connection location is defined by the interconnection of the foot extension of one annular element with the foot extension of a longitudinally-adjacent annular element. - View Dependent Claims (17)
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Specification