Devices and methods for radiation treatment of an internal body organ
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United States of America Patent
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Jan 26, 1999
Issued Date -
N/A
app pub date -
Aug 20, 1996
filing date -
Nov 13, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention provides methods and devices for delivering low level radiation to inhibit neointimal hyperplasia following angioplasty or other intravascular procedures. In an exemplary method, a balloon is inflated within a stenosed region of a blood vessel to produce a treated region. The balloon is then deflated and a radioactive source within a sleeve is aligned over the deflated balloon. The balloon is again inflated at the treated region to engage the sleeve having the radioactive source against the blood vessel within the treated region for from 1 to 40 minutes to deliver a sufficient dose of radiation to inhibit neointimal hyperplasia.
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