Neomed, Inc.

Charles E Taylor

Janet M Esty

A generally flat instrument provides electrical interfacing between an electro-surgical signal generator and an exposed surgical electrode. Dome-shaped momentary contact switches are sealed within the instrument housing at points convenient for manual usage. Low profile switches which resist seal degradation are employed and the device is readily adaptable for accepting replaceable chucks containing a preselected surgical electrode. The relatively narrow elongated housing imparts the feel of a non-electrical surgical instrument. Inclusion of one or more nubs or other raised portions on the switch domes facilitates identification of switch function without requiring direct observation by the user.

Electro-surgical instrument

A switching circuit is completed between electrical contacts by a flexible cap overlying the contact points. The cap is formed with cylindrical sidewalls and an upper end closure which has a plunger or piston-like portion extending therefrom towards the contact points. The dome section is arranged so as to arc from the cylindrical sidewalls in a direction away from the contact points so that depression of the dome will not effect collapsing of the cylindrical sidewalls for the entire extent of the contact establishing travel. The cap can deflect a metal dome to perform the contact establishment or can be composed of a resilient conductive material to directly establish electrical contact.

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Evergreen, CO, United States of America

Charles E Taylor