Mandible stimulator

Abstract From the Canadian patent

A stimulator for causing involuntary mandibular closure. The stimulator operates in either a "test" mode in which the electrical conductivities in a pair of electrode circuits are measured, or a "pulse" mode in which adjustable amplitude current pulses are generated in the electrode circuits. In the "test" mode a constant voltage is applied to left and right electrode circuits, and the currents through the electrode circuits are measured. A first comparator circuit flashes respective "open" circuit warning lamps if the current through either of the electrodes is less than a preset value, and it flashes a "good" connection indicator lamp if the current through both electrodes is greater than …