Patent ID: 11871980
Assignee: MEDTRONIC ADVANCED ENERGY LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 17:
18. An electrosurgical system, comprising:
an electrosurgical device operable in at least one of a monopolar mode via a received monopolar RF energy signal of at least one of a first and second power waveform and a bipolar mode via a received bipolar RF energy signal of a third power waveform, wherein the first power waveform, the second power waveform and the third power waveform each provide different power levels and frequency ranges;
an electrosurgical unit having a bipolar receptacle disposed on a housing of the electrosurgical unit, the electrosurgical unit electrically coupled to the electrosurgical device, the electrosurgical unit providing one of the monopolar RF energy signal of at least one of the first and second power waveform and the bipolar RF energy signal of the third power waveform to the electrosurgical device corresponding with an activated mode of the electrosurgical unit, and the electrosurgical generating a bipolar signal of a fourth power-waveform, the fourth power waveform below an RF range relative to the first, second, and third power waveforms, the electrosurgical unit providing the bipolar RF energy signal of the third power waveform and the bipolar signal to the accessory charging circuit of the fourth power waveform as an output via the bipolar receptacle;
an accessory charging circuit operably coupled to the bipolar receptacle to receive the bipolar signal of the fourth power waveform, the electrosurgical device and the accessory charging circuit in parallel to the electrosurgical unit, the accessory charging circuit including a rectification circuit electrically coupled to the bipolar receptacle and an energy storage element electrically coupled to the rectification circuit; and
an accessory operably coupled to the accessory charging circuit, the accessory electrically coupled to the energy storage element to receive power from the energy storage element.