Stent to be placed in vivo
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United States of America Patent
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N/A
Issued Date -
Feb 15, 2007
app pub date -
Jul 23, 2004
filing date -
Aug 5, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
As a treatment for angiostenosis, angioplasty (PTA or PTCA) of expanding a small-sized balloon in a vessel has been commonly conducted. However, this treatment easily causes repeated stenosis (restenosis) after the treatment. Placement of a stent in a vessel is also effective in decreasing restenosis, but this treatment may also cause restenosis. The present invention provides a stent containing a poly (lactide-co-glycolide) or both a poly (lactide-co-glycolide) and an immunosuppressive agent in at least a portion of a surface of the stent, and further containing a material nondegradable in vivo.
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