Multiple Parameter Fault Detection in Electrosurgical Instrument Shields
AssigneeEncision, Inc.
InventorsKurt Albert Aronow, David Newton, Don R. Boyle
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Abstract
A system and method for detecting faults within an electrosurgical instrument having a shield and an active electrode uses multiple possible fault conditions. In one embodiment the monitoring system comprises an electrosurgical generator coupled to the electrosurgical instrument and adapted to deliver power to the active electrode of the electrosurgical instrument, monitoring circuitry coupled to the electrosurgical generator and the electrosurgical instrument.
Claims5
A method of detecting faults within a shielded electrosurgical instrument, the shielded electrosurgical instrument having an active electrode, the method comprising:
- sensing at least two of:
- an active voltage in the active electrode;
- a current in the active or return electrodes;
- power in the electrosurgical instrument shield;
- determining at least two of:
- whether a resistance fault exists;
- whether one or more current faults exists;
- whether a power fault exists;
- whether a capacitance fault exists;
- and
- altering power delivery to the active electrode if any of the resistance fault, current faults, power fault, or capacitance faults exist.
Dependencies are inferred from the claim text.