Patent ID: 11918270
Assignee: OLYMPUS WINTER & IBE GMBH
Field: Medical technology (Instruments)
Classification: CPC A  G  H | IPC A  G  H

Claim 2:
3. A method of operating an electrosurgical generator, wherein the method comprising:
generating an AC output voltage and supplying the AC output voltage to outputs of the electrosurgical generator, wherein a maximum AC output voltage value is predefined for the AC output voltage;
determining a load present at the outputs and comparing the load with a threshold value, which is defined such that a load falling below this threshold value indicates occurrence of a vaporization phase;
determining a DC offset in the AC output voltage present at the outputs,
wherein, as soon as the threshold value is exceeded and a DC offset is not detected in the AC output voltage present at the outputs, a maximum AC output voltage value is preset such that the maximum AC output voltage is higher than a preset maximum output voltage value, the preset maximum output voltage value being preset if a DC offset is detected; and

controlling the AC output voltage based on the maximum AC output voltage value;
establishing a vapor bubble as part of a vaporization phase during an initial phase;
creating arcing as part of an ignition phase during the initial phase; and
during the initial phase, applying the maximum AC output voltage value; and
if the DC offset is not detected, applying the preset maximum output voltage value that is higher than the maximum AC output voltage value.