Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shih-Horng Su0
Douglas R. Savage0
John E. Shulze0
Ronald E. Betts0
Sepehr Fariabi0
Date of Patent
February 28, 2017
0Patent Application Number
135542960
Date Filed
July 20, 2012
0Patent Citations Received
Patent Primary Examiner
Patent abstract
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.
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