Patent ID: 8372136
Filing Date: 2013-02-12
Classification: A61F

Abstract:
1. A stent for implant in a mammalian body comprising: a tubular structure having an inside diameter, an outside diameter, a sidewall therebetween, a central axis defining a longitudinal direction, and apertures extending through the sidewall, wherein said sidewall is a circumferential sidewall having a wall thickness, said apertures separating struts joined at apices, said apices having a structure to exhibit a level of tensile strain, said struts being generally longitudinally extending and having different widths with a plurality of the struts grouped to define a cell, wherein in the circumferential direction of the stent, each cell comprises a first group of struts having a first width and a second group of struts having a second width different from the first width, with apices that are adjacent in the circumferential direction being offset with respect to one another in the longitudinal direction, said stent having a length along the central axis, wherein elongation of the stent in the longitudinal direction causes a change in the level of tensile strain in the apices, wherein said stent is structured such that when elongated at least 10%, the level of tensile strain in each apex is less than about 3%.