Patent ID: 8323329
Filing Date: 2012-12-04
Classification: A61F,A61L,B29C,B29K,B29L,Y10T

Abstract:
1. A stent comprising: a scaffolding formed from a poly(L-lactide) tube that is radially expanded to increase the scaffolding's radial strength; and the scaffolding including cylindrical rings, each of which comprising a plurality of diamond shaped cells interconnected to each other about the stent circumference; wherein each cell is formed by a pair of opposed bar arms defining a bending element arranged to extend substantially along the circumferential direction of the scaffolding so that the smallest angle separating the bar arms of one of the bending elements is greater than about 90°, whereby the bending elements are defined as areas exhibiting the highest stress concentration of a diamond shaped cell when the scaffolding is radially loaded; wherein the scaffolding has crystal domain sizes of less than 10 microns.