Brachytherapy apparatus and method for treating tissue forming an internal body cavity
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United States of America Patent
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Issued Date -
Mar 20, 2008
app pub date -
Jul 20, 2007
filing date -
Jul 21, 2006
priority date (Note) -
Abandoned
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Abstract
A brachytherapy apparatus and method are provided for treating tissue forming an internal body cavity, such as an excised breast or brain tumor bed. The apparatus has at least one outer wall that is movable between (i) a retracted position spaced inwardly relative to tissue forming the internal body cavity, and (ii) an expanded position spaced outwardly and contiguous to tissue forming the internal body cavity. The outer wall is formed by a stent, a balloon catheter, or a plurality of axially-elongated solid or hollow flexible members that are angularly spaced relative to each other. A plurality of radiation sources are carried by the at least one outer wall and movable therewith between the retracted and expanded positions for transmitting radiation in the expanded position into the tissue forming the internal body cavity.
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