A closed-loop control system has a user interface for allowing a user to select at least one pre-surgical parameter. The system also has a sensor module for continually sensing at least one of electrical and physical properties proximate a surgical site and generating at least one signal and a control...http://www.google.de/patents/US7137980?utm_source=gb-gplus-sharePatent US7137980 - Method and system for controlling output of RF medical generator