Stents with ceramic drug reservoir layer and methods of making and using the same
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United States of America Patent
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Nov 29, 2011
Grant Date -
Oct 9, 2008
app pub date -
Apr 5, 2007
filing date -
Apr 5, 2007
priority date (Note) -
Expired
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Abstract
A method of making a drug eluting stent comprises forming a porous stent body surface layer by ion implantation, applying a layer of ceramic particles on the porous layer and compressing the layer of ceramic particles. The layer of ceramic particles can be compressed to successively higher densities. Drugs can be loaded into the layer of ceramic materials at a relatively low density before the layer of ceramic materials is compressed to a higher density to achieve a desired low drug release rate.
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