Metal stent containing radioactivatable isotope and method of making same
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United States of America Patent
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Apr 30, 2002
Issued Date -
N/A
app pub date -
Aug 29, 2000
filing date -
Mar 11, 1998
priority date (Note) -
Expired
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Abstract
A metal stent for vascular implantation comprising a generally tubular structure whose extend surface is adapted to engage the interior vascular surface when implanted, said metal of said stent containing a substantially uniform dispersion of from about 0.05 to about 10.00 percent by weight of one or more naturally occurring or enriched stable isotopes having a half-life of less than two months and that are principally beta particle emitters, so that when activated, said stent emits low to moderate dosages of radiation uniformly to reduce cell proliferation.
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