Patent ID: 7611533
Filing Date: 2009-11-03
Classification: A61F,A61K,A61L,A61N,A61P

Abstract:
1. An implantable medical device, comprising: an expandable stent sized and shaped for introduction into a vascular system of a patient, the expandable stent having at least one surface; a coating layer in direct contact with the at least one surface and comprising a first polymer posited between the at least one surface of the expandable stent and at the least one layer comprising a bioactive agent; the porous layer comprising a second polymer posited over the at least one layer comprising a bioactive agent and controlling the release of the bioactive agent, the first polymer and the second polymer being the same or different; wherein the expandable stent is capable of eluting the bioactive agent from the bioactive layer through the porous layer when the expandable stent is placed in the vascular system of the patient; wherein said stent is a metal stent, and said at least one surface is a metal surface; wherein said coating layer is in contact with said metal surface; and wherein said first polymer is a parylene or a parylene derivative polymer.