Patent ID: 8211100
Filing Date: 2012-07-03
Classification: A61B

Abstract:
1. A method for controlling an electrosurgical waveform generated by an electrosurgical generator comprising the steps of: activating an electrosurgical generator to produce an electrosurgical waveform; increasing power of the electrosurgical waveform during a first sample window; determining a direction of change in a first average impedance during the first sample window in response to the increase in power of the electrosurgical waveform; performing a first adjustment of power of the electrosurgical waveform in response to the direction of change in the first average impedance during a subsequent sample window; determining a direction of change in a subsequent average impedance during the subsequent sample window in response to the first adjustment of power; and performing a subsequent adjustment of power of the electrosurgical waveform in response to the direction of change in the subsequent average impedance, wherein the subsequent adjustment of power is reverse to that of the first adjustment of power when the direction of change in the first and subsequent average impedances is the same.