A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 18/00 (2006.01) A61B 18/12 (2006.01)
Patent
CA 2574842
Systems and methods for controlling an electrosurgical generator through a patient isolation barrier are disclosed. The system includes a control assembly disposed within a surgical hand piece configured to control the generator. The control assembly has one or more input devices and one ore more resistor assemblies in electrical communication with a DC voltage source which supplies a control current. The input devices are configured to adjust resistance of the resistor assemblies and voltage of the control current passing therethrough. The system also includes an isolation barrier transmitter having a voltage-to-frequency converter which converts the voltage passing through the resistor assembly into a corresponding frequency. The transmitter transmits the frequency across the patient isolation barrier. The system further includes an isolation barrier receiver configured to receive the frequency and to convert the frequency into a control signal and a microprocessor which processes the control signal and controls the generator based on the control signal.
Keppel David S.
Mcfadden Fincham
Sherwood Services Ag
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