Patent ID: 8147539
Filing Date: 2012-04-03
Classification: A61L

Abstract:
1. A stent for implantation in a body lumen of a patient comprising: a stent sidewall structure comprising a plurality of struts in which at least one strut has an abluminal surface, a luminal surface opposite the abluminal surface, a first side surface, and a second side surface opposite the first side surface, in which the first and second side surface are each adjacent to and connect the abluminal surface and the luminal surface; an inner coating composition comprising a first polymer disposed on the abluminal surface, luminal surface, first and second side surfaces and any other surface of the strut such that the inner coating composition is disposed on all surfaces of the strut; wherein the inner coating composition is free of any therapeutic agent when applied onto the surfaces of the strut; and wherein the inner coating composition that is disposed on the luminal surface forms an exposed surface; and an outer coating composition disposed on at least a portion of the inner coating composition that is disposed on at least one of the abluminal surface or first side surface or second side surface, wherein the luminal surface is free of the outer coating composition; wherein the outer coating composition comprises a first therapeutic agent and the first polymer.