Patent ID: 7879086

Claim:
An implantable stent comprising (a) an intravascular sidewall stent structure having openings therein and designed for permanent implantation into a blood vessel of a patient; and (b) a coating disposed on the stent structure having (1) a first coating region disposed on a first region of the stent structure, wherein the first coating region comprises a first coating composition comprising a first adhesion promoter and a second coating composition comprising a first therapeutic agent disposed upon the first coating composition; and (2) a second coating region disposed on a second region of the stent structure, wherein the second coating region comprises a third coating composition comprising a second therapeutic agent and a second adhesion promoter different in composition from the first adhesion promoter, wherein the first adhesion promoter is selected from the group consisting of copolymers of styrene and ethylene/butylenes, iridium oxide, and sulfonated styrene isobutylene.