Patent ID: 7985249

Claim:
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 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.