Vascular and endoluminal stents
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United States of America Patent
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Nov 12, 2002
Grant Date -
N/A
app pub date -
Sep 18, 2000
filing date -
Sep 18, 2000
priority date (Note) -
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Abstract
A stent is composed of a single homogeneous tubing of niobium with a trace of additional metal less than about 5%, preferably zirconium, for alloy formation and reinforcement. The stent surface is provided with at least a partial coating to inhibit closure of a central lumen at a site of stent implant in the body. The surface coating may be vapor deposited or plasma deposited and comprises iridium oxide, titanium nitrate, a blend of metals, or surface oxidation of the niobium. The stent may have a rough surface characteristic.
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