An apparatus and method for coating abluminal surface of a stent is described. The apparatus includes a stent support, a coating device, and an imaging system. The coating device includes a solution reservoir and transducer assembly. The transducer assembly includes a plurality of transducers and a controller....http://www.google.fr/patents/US7775178?utm_source=gb-gplus-shareBrevet US7775178 - Stent coating apparatus and method