Sepehr Fariabi;Ronald E. Betts;Shih-Horng Su;Douglas R. Savage;John E. Shulze
发明人:
Douglas R. Savage,John E. Shulze,Ronald E. Betts,Sepehr Fariabi,Shih-Horng Su
申请号：
US13554296
公开号：
US20120330406A1
申请日:
2012.07.20
申请国别(地区):
US
年份:
2012
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.
