Monitoring arrangement for a high frequency surgery device
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United States of America Patent
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-
May 3, 1988
Grant Date -
N/A
app pub date -
May 7, 1986
filing date -
May 7, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A monitoring arrangement is disclosed for a high frequency surgery device, having a control electrode applied on a patient's body, which detects the high frequency voltage existing on the body surface during the treatment and introduces the same to a monitor circuit. The monitor circuit includes a voltage comparator which compares the body surface voltage with a reference voltage U.sub.ref and upon exceeding the reference voltage U.sub.ref, closes a relay which switches off the high frequency surgery device. The reference voltage U.sub.ref is determined individually for each patient beforehand and corresponds to the maximum tolerable body surface voltage of the particular patient.
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