Surgery – Truss – Perineal
Patent
1979-11-23
1981-06-16
Kamm, William E.
Surgery
Truss
Perineal
128419D, A61N 136
Patent
active
042731143
ABSTRACT:
A reciprocal cardiac compressor is provided for cyclically compressing a patient's chest. Preferably a resuscitator is also provided for ventilating the patient's lungs. The compressor includes a reciprocal compressor pad positioned anterior to the patient's heart and a stationary base positioned posterior to the patient's heart. An anterior electrode is disposed on the face of the compressor pad for compression between the compressor pad and the patient's sternum and a posterior electrode is disposed on the base of the compressor for compression between the base and the patient's back. A cardiac defibrillator is connected between anterior and posterior electrodes for establishing a defibrillating electric current therebetween. A monitor is connected to the anterior and posterior electrodes for monitoring the electrical activity of the patient's heart. Means for snychronizing the defibrillator and the compressor is provided comprising a pressure sensitive switch for synchronizing the defibrillator and compressor such that defibrillating current is applied to the patient's heart only during a systolic portion of the compression cycle of the compressor.
REFERENCES:
patent: 3326207 (1967-06-01), Egan
patent: 3461860 (1969-08-01), Barkalow
patent: 3461861 (1969-08-01), Barkalow et al.
patent: 3716059 (1973-02-01), Welborn et al.
patent: 3837347 (1974-09-01), Tower
patent: 4082090 (1978-04-01), Harrigan
patent: 4088138 (1978-05-01), Diack et al.
patent: 4090518 (1978-05-01), Elam
Schaudinschky et al., "Medical and Biological Engineering" vol. 7, No. 3, May 1969, pp. 341-343.
Barkalow Clare E.
Elam James O.
Kamm William E.
Michigan Instruments, Inc.
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