Patent ID: 8636811

Claim:
A stent delivery system comprising: a catheter; a balloon operably attached to the catheter; and a stent disposed on the balloon; wherein the stent comprises: a rectangular metal foil sheet having a first side and a second side, the rectangular metal foil sheet being rolled with the first side across from the second side to form a cylindrical tube having a central axis and a spiral cross section perpendicular to the central axis; a polymer drug coating disposed between and attached to both-the first side and the second side to adhere and connect the first side to the second side wherever the first side is across from the second side; and at least one opening formed through the cylindrical tube generally perpendicular to the central axis, the at least one opening being shaped to form at least one strut having in cross section polymer drug layers between metal foil layers, polymer drug layer edges of the polymer drug layers being in communication with the at least one opening.