Electrosurgical generator

摘要

An electrosurgical generator for generating radio frequency power, includes a radio frequency output stage having three or more output connections, and one or more sources of radio frequency output power coupled to the output stage. A controller causes the system to supply a first coagulating RF waveform to the output connections or a second cutting RF waveform to the output connections. The first RF waveform is delivered between a first pair of the output connections, and the second RF waveform is delivered between a second pair of the output connections. In a first mode of operation the controller supplies the first coagulating RF waveform, and in a second subsequent mode of operation the controller supplies the second cutting RF waveform for a first predetermined period of time followed by the first coagulating RF waveform for a second predetermined period of time, both periods being in excess of 1 second.

主权项

1. An electrosurgical generator for generating radio frequency power, the electrosurgical generator comprising:
a radio frequency output stage having a plurality of output connections; one or more sources of radio frequency output power coupled to the output stage; a controller configured to: (i) cause a supply of a first coagulating RF waveform to the output connections and a second cutting RF waveform to the output connections, and (ii) transmit at least one of the first coagulating RF waveform and the second cutting RF waveform to the output connections; and in response to a first activation signal from a user, the controller supplies the second cutting RF waveform for a first period of time required to perform an electrosurgical cut of tissue, followed automatically by the first coagulating RF waveform for a second period of time required to complete coagulation of the cut tissue, wherein
the controller supplies: (1) the second cutting RF waveform for the first period of time, and (2) the first coagulating RF waveform for the second period of time, in order, once per activation signal.