Patent ID: 8414525
Filing Date: 2013-04-09
Classification: A61K,A61L

Abstract:
1. A balloon catheter for delivering a therapeutic agent to target site in a blood vessel, the balloon catheter comprising: a coating layer overlying an exterior surface of a balloon, the coating layer comprising a therapeutic agent and at least one first additive, wherein: an adherent layer between the coating layer and the exterior surface of the balloon, the adherent layer comprising a biocompatible polymer selected from the group consisting of polyolefins, polyisobutylene, ethylene-1-olefin copolymers, acrylic polymers, polyvinyl chloride, polyvinyl methyl ether, polyvinylidene fluoride, polyvinylidene chloride, polyacrylonitrile, polyvinyl ketones, polystyrene, polyvinyl acetate, ethylene-methyl methacrylate copolymers, acrylonitrile-styrene copolymers, ABS resins, Nylon 12, polycaprolactone, epoxy resins, polyurethanes, rayon-triacetate, cellulose, cellulose acetate, cellulose butyrate, cellophane, cellulose nitrate, cellulose propionate, cellulose ethers, carboxymethyl cellulose, chitins, polylactic acid, polyglycolic acid, polylactic acid-polyethylene oxide copolymers, silicones, ethylene vinyl acetate copolymers, EPDM rubbers, and mixtures and block copolymers thereof.