Method and apparatus for positioning radioactive fluids within a body lumen
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United States of America Patent
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Jul 2, 2002
Grant Date -
N/A
app pub date -
Sep 16, 1998
filing date -
Sep 16, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device and method for providing radiation to selected radial portions of a segment of the interior wall of a body lumen. In a preferred embodiment, an intravascular catheter is positioned within a desired blood vessel adjacent to a lesion. A radioactive fluid is then injected into the catheter, and the catheter directs the radioactive fluid about the central axis of the vessel in the area of the lesion. This allows selected radial portions of a vessel to have a higher radiation exposure than other portions, which is particularly useful when a lesion does not uniformly extend around the entire circumference of a vessel.
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