ABSTRACT
The sirolimus-eluting stent (CYPHER™ stent [Cordis Corporation, a Johnson & Johnson company]) comprises an assembly of three main components: the metal stent platform, the drug carrier vehicle, and the pharmacologic agent
Velocity stent, which is covered by a 5-10 µm uniform blend of polymer + drug (basecoat). A topcoat of drug-free polymer is added to act as a diffusion barrier and control the release of drug.
