Electrosurgical system and electrosurgical method with enhanced arc prevention

摘要

Described herein are electrosurgical systems and electrosurgical methods. The system receives and processes signals from an electrosurgical probe having an active electrode disposed near the distal end of the probe, a system having a power source for delivering voltage to the active electrode, and current and temperature sensors. Controller. The current sensor measures the current output of the power source, and the temperature sensor is adjacent to the conductive fluid located at the target site. The controller can be programmed to operate in a low voltage mode that limits the power supply to a low voltage output to determine whether the current output from the current sensor is within a certain current output range. This range is defined by a predetermined upper and lower limit that is modified by at least one measured value.