The return route electrode circuit for the electric surgery in order to monitor the electric current for the electric surgery

摘要

(57) Abstract Two parts (20,21) the neutral electrode which consists of is monitored continually by the adaptation monitoring system in order to guarantee the state of optimum electric contact with the skin of the patient with the purpose which prevents the burn. The signal which is joined between two parts of the return route electrode the special adaptation signal generator, the insulating transformer (10) by is generated. Electric current and applied voltage it is monitored continually in regard to phase contrast, and phase contrast controls the phase simulation generator (38) next. Continual adaptation of the generation frequency by the above-mentioned feedback phase control looping makes that the test frequency of the optimum is obtained vis-a-vis each patient electrode combination possible. Optimum frequency is obtained in that case when test voltage and the phase contrast between electric current are smallest.