SAVAGE, DOUGLAS R.,SHULZE, JOHN E.,BETTS, RONALD E.,FARIABI, SEPEHR,SU, SHIH-HORNG
申请号：
CA2667061
公开号：
CA2667061C
申请日:
2007.10.19
申请国别(地区):
CA
年份:
2014
代理人:
摘要：
An improvement in drug-eluting stents, and method of their making are disclosed. The surface of a metal stent is roughened to have a surface roughness of at least about 20 µin (0.5 µm) and a surface roughness range of between about 300-700 µin (7.5-17.5 µm). The roughened stent surface is covered with a polymer-free coating of a limus drug, to a coating thickness greater than the range of surface roughness of the roughened stent surface.
