07927328 is referenced by 213 patents and cites 947 patents.

An electrosurgical system is disclosed comprising a generator configured to electrosurgical coagulation waveforms. The generator includes a closed loop control system for controlling the electrosurgical coagulation waveforms. The closed loop control system includes a sensor configured to sense a tissue property and/or an energy property and to transmit the tissue property and/or the energy property as one or more sensor signals having an amplitude. The control system also includes a gain controller configured to process the at least one sensor signal to reduce the amplitude of the sensor signals and to obtain a signal to noise ratio of the at sensor signals within a predetermine range. A microprocessor coupled to the generator and is configured to adjust the electrosurgical coagulation waveforms as a function of the sensor signals.

Title
System and method for closed loop monitoring of monopolar electrosurgical apparatus
Application Number
11/657174
Publication Number
7927328 (B2)
Application Date
January 24, 2007
Publication Date
April 19, 2011
Inventor
Robert H Wham
Boulder
CO, US
James H Orszulak
Nederland
CO, US
Assignee
Covidien
CH
IPC
A61B 18/18
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