Microwave applicator with adjustable heating length
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United States of America Patent
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Issued Date -
N/A
app pub date -
Feb 20, 2008
filing date -
Aug 4, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A microwave applicator for applying microwave radiation to body tissue includes a microwave antenna formed by extending the center conductor of a coaxial cable beyond the end of the outer coaxial conductor and providing a conductive outer tip coupled to the center conductor with a space between the end of the outer conductor and the conductive tip. The length of the expected heating area caused by microwave energy applied to the antenna can be adjusted by positioning a conductive sleeve along the length of the antenna from one end of the antenna to cover a portion of the antenna, the length of the heating area being determined substantially by the length of the uncovered portion of the antenna. Treatment can include positioning one or more applicators into body tissue, adjusting the conductive sleeve with respect to the antenna to adjust the length of the heating area for each of the one or more applicators, and applying microwave energy to the applicators.
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Family
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