Abstract: A variable alternating current output nerve locator/stimulator comprising a hollow substantially cylindrical enclosure configured to operatively house a direct current power source electrically coupled to a current power convertor including circuitry to convert the direct current to alternating current electrically coupled to a current regulator, a nerve probe electrically coupled to the current regulator and a ground electrically coupled to the direct current power source, a removable nerve probe cover and a removable ground cover removably attached to opposite ends of the hollow substantially cylindrical enclosure to permit selective withdrawal of the ground from the hollow substantially cylindrical enclosure and application of the nerve probe to the patient after adjustment of the current regulator to control the alternating current from the direct current power source.

Abstract: A battery operated cautery includes a cylindrical housing configured to retain a voltage source, such as a plurality of batteries, and an electrically heated cautery tip carried by the front end of the housing and adapted to be selectively energized from the power source by a manually operable switch on the housing. The switch includes a contact element having rear end connected to a terminal of the power source and a front end movable into and out of engagement with a terminal electrode of the electrically heated tip to make and break the circuit between the tip and the power source by a operation of a depressible switch actuator on housing. A removable safety cover configured to mount on the front of the housing encloses the switch actuator and heating tip to prevent inadvertent switch actuation and to protect the tip when the cautery is being stored or transported.