abstract |
The present invention provides a coated coronary stent, comprising: (a) a stent skeleton, and (b) a plurality of layers deposited on the stent skeleton to form the coronary stent, wherein at least one of the plurality of layers comprises a bioabsorbable polymer Wherein the at least one of the plurality of layers comprises at least one active agent, wherein at least a portion of the active agent is in crystalline form. |