Surgery – Truss – Perineal
Patent
1980-09-24
1982-10-05
Kamm, William E.
Surgery
Truss
Perineal
128419D, A61N 134
Patent
active
043523510
ABSTRACT:
Each of two channels has a sine wave oscillator, an electronic key, an amplifier and a pair of electrodes, electrically connected in series. A pair of threshold circuits are provided. Each of the threshold circuits has an input electrically connected to the amplifier of a corresponding one of the channels and an output. A first coincidence circuit has a pair of inputs each electrically connected to the output of a corresponding one of the threshold circuits, and an output. The output of the first coincidence circuit is electrically connected to a first input of a second coincidence circuit. The second coincidence circuit has a second input to which signals are fed from the output of a first time delay element. The output of the first time delay element is also connected to the input of a second time delay element. The output of the second time delay element is electrically connected to the control inputs of the electronic keys of the channels. The output signal of the second coincidence circuit is used to trigger defibrillator synchronization.
REFERENCES:
patent: 3236239 (1966-02-01), Berkovits
patent: 3626926 (1971-12-01), Kuzin et al.
patent: 3791373 (1974-02-01), Winkler et al.
patent: 3989051 (1976-11-01), Nozhnikov et al.
patent: 4114628 (1978-09-01), Rizk
Rodionov Vladimir I.
Smerdov Andrei A.
Tabak Viktor Y.
Venin Igor V.
Vidershain Tatyana V
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