Dynamic heating method and radio frequency thermal treatment
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United States of America Patent
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-
Jan 18, 2000
Grant Date -
N/A
app pub date -
Mar 19, 1997
filing date -
Mar 19, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and system for the delivery of radiofrequency energy to the tissue, particularly, the prostate, to alleviate the symptoms of BPH is disclosed. The system incorporates a bipolar or multipolar electrode array to create an electric field where the heat created is confined solely to a specific volume of the prostate gland and therefore the heated tissue is defined only by the electrode geometry. The bipolar electrode array provides a variety of three dimensional, symmetric heating patterns within the prostatic tissue depending on the relative electrode lengths and angular separation. The system provides precision tissue temperature and impedance measurements thereby enabling the surgeon to accurately predict heating pattern performance and tissue response to RF heating.
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