Medical electronic equipment for electrotomy uses converter connected to AC generator and supplies high-frequency AC to sharp cutting electrode and pair of large area electrodes acting as pincers

摘要

The pincers are attached to a convenient portion of the patient's anatomy and act as a current return. The cutting tool has an insulating handle and a sharp point or a loop of thin wire to act as the cutting blade. The converter incorporates a high- frequency step-up transformer with the first terminal of the secondary connected to the cutting blade via a first capacitor. The second terminal of the secondary is connected to both clamping arms of the return circuit pincers via a second capacitor. The converter may be separate from the control and current supply circuits.