Cauterising apparatus
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United States of America Patent
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-
Jun 13, 1995
Grant Date -
N/A
app pub date -
Feb 25, 1993
filing date -
Feb 27, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Electrosurgical cauterizing apparatus has a radio frequency generator with a power oscillator which generates a bipolar cauterizing output signal for application to a pair of cauterizing electrodes. The oscillator carrier frequency varies according to the load resistance represented by tissue being cauterized and this variation is used to monitor the tissue resistance as cauterization progresses. The apparatus generates a cauterisation termination signal according to progress of the tissue resistance on a resistance versus time curve characteristic of the tissue cauterization process.
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