Patent ID: 7951193

Claim:
A stent for delivering therapeutic agents to a body lumen, the stent comprising: a plurality of circumferential serpentine bands, each band comprising a plurality of struts, each strut having an outer surface, an inner surface, and a strut thickness between the outer surface and the inner surface, the strut thickness being variable along at least a portion of a length of the strut, at least one strut located on the strut at at least one first well region and at least one second well region, the at least one first well region located on the strut at a first strut thickness, the at least one second well region having a second strut thickness, the first strut thickness being greater than the second strut thickness, each well region defining at least one well, each well having a depth extending from the outer surface of the strut through at least a portion of the strut thickness, at least some of the wells containing a therapeutic agent.