Patent ID: 7833544

Claim:
Intravascular stent comprising a metal body having a coating comprising a polymer and at least 20 μg per stent of a restenosis inhibiting agent in which the restenosis inhibiting agent is a sparingly water soluble drug and the polymer in the coating is a cross-linked amphiphilic polymer which, when swollen with water containing pyrene, has hydrophobic domains observable by pyrene fluorescence having an intensity ratio 13:11 of at least 0.8, wherein the amphiphilic polymer comprises, as the groups conferring hydrophobicity, pendant hydrophobic groups selected from C 4-24 -alkenyl and -alkynyl groups any of which is optionally substituted by one or more fluorine atoms, aryl, C 7-24 aralkyl, oligo (C 3-4 alkoxy) alkyl and siloxane groups.