Surgery – Truss – Pad
Patent
1977-06-27
1980-07-01
Cohen, Lee S.
Surgery
Truss
Pad
A61N 136
Patent
active
042101506
ABSTRACT:
A miniaturized transcutaneous nerve stimulator is disclosed that utilizes a single 1.25 volt battery as the power source, yet provides a 30 volt DC power output over an extended period of time. The battery is connected to the primary winding of a step-up transformer with the primary also having a transistor connected in series therewith. The secondary winding of the transformer is connected with a full wave diode bridge circuit and a 30 volt Zener diode. Pulsing circuitry is also provided which includes a pulse rate and pulse width establishing multivibrators which are coupled through a buffer to a pair of Darlington amplifiers, which are also connected with the Zener diode and full wave diode bridge circuit. The output from the stimulator is coupled from the Darlington amplifiers, which amplifiers have a charging circuit connected therewith, to output terminals connectable with electrodes engagable with the skin surface of the subject.
REFERENCES:
patent: 3077884 (1963-02-01), Batrow et al.
patent: 3255753 (1966-06-01), Wing
patent: 3373747 (1968-03-01), Tapper
patent: 3518996 (1970-07-01), Cortina
patent: 3589370 (1971-06-01), McDonald
patent: 3648708 (1972-03-01), Haeri
patent: 4014347 (1977-03-01), Halleck et al.
patent: 4019519 (1977-04-01), Geerling
patent: 4057069 (1977-11-01), Dorffer et al.
patent: 4093975 (1978-06-01), Roberts
Cohen Lee S.
Staodynamics, Inc.
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