Radiation therapy apparatus with selective shielding capability
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United States of America Patent
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Issued Date -
Jan 10, 2008
app pub date -
Jun 19, 2006
filing date -
Jun 19, 2006
priority date (Note) -
Abandoned
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Abstract
Brachytherapy applicators incorporate various forms of selective shielding devices for controlling the direction and intensity of radiation directed at a patient's tissue. In some forms the applicators include a retractable sheath, in some a series of retractable fingers. In other forms the applicator, having an inflatable balloon, has a shield which is retractable from a position adjacent to the balloon or retracted from the balloon, or a shield can itself be inflatable, separately or together with the balloon.
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