Catheter having an expandable radioactive source
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United States of America Patent
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-
Mar 9, 1999
Grant Date -
N/A
app pub date -
Jan 21, 1997
filing date -
Jan 21, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
A balloon catheter for irradiation with or without dilatation of an arterial stenosis has an inflatable balloon and a generally cylindrical, thin-walled, elastic radioactive source both located coaxially at a distal section of the balloon catheter. The elastic radioactive source is moved radially outward as a result of injection of an inflation fluid into the inflatable balloon thus placing the radioactive source in close proximity to the wall of a vessel of the human body into which the balloon catheter has been inserted.
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