Purdue Research Foundation

John A Pearce

Leslie A Geddes

Joe D Bourland

An electrosurgical dispersive electrode is disclosed that is useful in conjunction with an electrosurgical unit to establish capacitive-coupling with the skin of a patient receiving therapeutic signals from the electrosurgical unit. The electrode includes a metallic plate electrically connectable with the electrosurgical unit to establish a return current path thereto, an insulator engaging the inner (patient) side of the metallic plate to prevent ohmic contact by the plate with the skin of the patient, and a conductive adhesive gel at the outer (patient) side of the insulator so as to be positioned between the insulator and the skin of a patient to bring the skin uniformly in contact with the gel conductor and thereby reduce the impedance, normally associated with capacitively-coupled dispersive electrodes, while retaining uniform temperature distribution.

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Battleground, IN, United States of America

John A Pearce