Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2007-06-26
2007-06-26
Manuel, George (Department: 3762)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
Reexamination Certificate
active
10497181
ABSTRACT:
A portable defibrillator includes a self-test circuit in which electrical energy is discharged from one or a bank of capacitors to a charge receiving circuit which recycles the energy to a rechargeable battery to prolong the original battery charge. A charge receiving circuit may contain a relatively high Ohmic value/low Wattage resistor such that the discharge occurs over a relatively long period of time, rendering a heat sink unnecessary. The resistor may be a single high value resistor or a network of plural smaller value resistors. Optional switching of the discharge electrical energy during a self-test either recycles it to the rechargeable battery or discharges it through the resistor. The self-test may be carried out on a bank of capacitors in rotation, discharging energy from one capacitor into the next such that all capacitors are charged and discharged from substantially a single power input.
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Brown Stephen Colin
Manuel George
Mills Desmond Bryan
Mills Malcolm Bradley
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