The invention pertains to medical devices, such as stents, having a surface and a first coating layer comprising a first polymer disposed on at least a portion of the surface, in which at least one cavity formed in the first coating layer. A biologically active material is deposited into the cavity,...http://www.google.es/patents/US20050266039?utm_source=gb-gplus-sharePatente US20050266039 - Coated medical device and method for making the same
Coated medical device and method for making the same
