Shape memory bioresorbable polymer peripheral scaffolds

A stent, comprising:

• a scaffold formed from a polymer tube and configured for being crimped to a balloon,
• the scaffold having a pattern of interconnected struts and
• the scaffold having an expanded diameter when expanded from a crimped state by the balloon,
• wherein the scaffold comprises a random copolymer of poly(L-lactide) (PLLA) and polycaprolactone (PCL) and the PCL is 15 to 50 wt % or mol % of the copolymer,
• wherein the glass transition temperature of the random copolymer is between 30° C. and 50° C., and
• wherein the scaffold pattern includes a plurality of undulating rings having crowns and longitudinally extending links connecting one ring to another adjacent ring, wherein the crowns include W-crowns, Y-crowns, and free crowns.

A stent, comprising:

• a scaffold formed from a polymer tube and configured for being crimped to a balloon,
• the scaffold having a pattern of interconnected struts and the scaffold having an expanded diameter when expanded from a crimped state by the balloon,
• wherein the scaffold comprises a random copolymer of poly(L-lactide) (PLLA) and polycaprolactone (PCL) and the PCL is 1 to 75 wt % or mol % of the copolymer,
• wherein the crystallinity of the scaffold is 20% to 30%,
• wherein the scaffold pattern includes a plurality of undulating rings having crowns and longitudinally extending links connecting one ring to another adjacent ring, wherein the crowns include W-crowns, Y-crowns, and free crowns not connected to a link, wherein the scaffold pattern forms closed cells,
• 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 the first ring, the adjacent ring, and the first link form repeating W-V closed cells,
• wherein the W-V cells have three free crowns between the W-crown and the Y-crown.