Electrosurgical return electrode monitor
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United States of America Patent
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-
May 20, 2003
Grant Date -
Oct 18, 2001
app pub date -
May 14, 2001
filing date -
May 11, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present disclosure provides a method for determining the probability of a patient burn under a return electrode in a monopolar electrosurgical system comprising calculating a heating factor adjacent the return electrode utilizing a first algorithm, calculating a cooling factor adjacent the return electrode utilizing a second algorithm, subtracting the calculated cooling factor from the calculated heating factor to obtain a difference value, comparing the difference value to a threshold value, and adjusting the power dependent on the relationship of the difference value to the threshold value.
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