COMMON-MODE NOISE FILTER OF RADIO FREQUENCY GENERATOR FOR RADIOFREQUENCY ABLATION
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United States of America Patent
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Issued Date -
Mar 24, 2011
app pub date -
Mar 24, 2010
filing date -
Sep 23, 2009
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Abandoned
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Abstract
Disclosed herein is a common-mode noise filter of an RF generator for radiofrequency ablation. The common-mode noise filter of the RF generator for RFA amplifies an oscillation frequency provided by an oscillator to AC output using amplification means, and providing the amplified oscillation frequency to electrodes. The common-mode noise filter is disposed between the amplification means and the electrodes, thus eliminating harmonic components generated by the electrodes depending on conditions of medical treatment when the electrodes are used. Accordingly, the present invention can prevent the distortion of images or waveforms attributable to harmonic components from occurring in a diagnostic imaging device such as a diagnostic ultrasound system used together with the RF generator for RFA as well as in the RF generator's own display unit.
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