Patent ID: 8968387
Filing Date: 2015-03-03
Classification: A61F,A61L

Abstract:
1. A stent, comprising: a scaffold formed from a polymer tube and configured for being crimped to a balloon, wherein the scaffold is made from a shape memory random copolymer of poly(L-lactide) (PLLA) and a rubbery polymer that is 0.1 to 10 wt % or mol % of the copolymer, and wherein the scaffold exhibits self-expanding properties at 37 degrees C. in physiological conditions; wherein the struts form undulating rings having crowns and the rings are interconnected by longitudinally extending links, wherein the crowns include W-crowns, Y-crowns, and free crowns; wherein a first link connects a first ring to an adjacent ring, the first link forms with the first ring a W-crown, and the first link forms with the adjacent ring a Y-crown; wherein a free crown is not connected to a link; and wherein a ring comprises a sequence of immediately adjacent crowns arranged about a circumference of the ring and in the following order: W-crown, 3 free crowns, Y-crown, 3 free crowns, and W-crown.