Radio-frequency based catheter system and method for ablating biological tissues
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United States of America Patent
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Jul 4, 2006
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app pub date -
Aug 8, 2003
filing date -
Dec 14, 1998
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Abstract
A method for biological tissue ablation includes shaping a shapeable RF antenna to accommodate the contour of a body vessel adjacent a biological tissue load; generating a train of radio frequency (RF) energy pulses at an output frequency for transmission in a transmission line to the shapeable RF antenna adjacent the biological tissue load; sensing a reflected signal and a forward signal of the RF energy pulses; and adjusting output frequency of the RF energy pulses to effect a substantial match of transmission line impedance with shapeable RF antenna and biological tissue load impedance.
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