#$%^&*AU2007200292B220121108.pdf#####A METHOD AND SYSTEM FOR CONTROLLING AN OUTPUT OF A RADIO-FREQUENCY MEDICAL GENERATOR HAVING AN IMPEDANCE BASED CONTROL ALGORITHM ABSTRACT A system for performing an electrosurgical procedure at a surgical site is disclosed. The system includes a sensor (18) configured to continually sense an electrical and/or a physical property of tissue at a surgical site and to generate a sensor signal as a function thereof. The system also includes a control module (14) 5 configured to process the sensor signal using a processor, an algorithm, and a map having one or more predetermined values. The control module (14) is further configured to compare the sensor signal to a predetermined level to determine reliability of the sensor signal and to signal an electrosurgical generator (12) in response to a reliable sensor signal such that the electrosurgical generator (12) enters 10 energy control mode, wherein the electrosurgical generator (12) matches an output of the control signal with a predetermined value from the map.1/7 10 16 14 ELECTROSURGICAL _A S SENSOR, MODULE 26 18 FIG. 1
