Patent ID: 8431149

Claim:
An implantable stent comprising: (a) a tubular stent sidewall structure having an abluminal surface and an adluminal surface; and (b) a coating having an outer surface comprising: (i) a first coating material disposed on at least a portion of the abluminal surface of the stent, the first coating material comprising pores and a first therapeutic agent disposed in at least some of the pores, the first coating material comprising an inorganic or ceramic oxide, metal, or inert carbon; (ii) a plurality of reservoirs formed within the first coating material, the reservoirs being different from and larger in size than the pores in the first coating material, at least one reservoir among said plurality of reservoirs having a body that is relatively narrow near the outer surface of the coating and relatively more broad near the abluminal surface of the stent; and (iii) a second coating material comprising a polymer and a second therapeutic agent, wherein the second coating material is disposed within the at least one reservoir after the reservoirs are formed.