Surgery – Truss – Perineal
Patent
1983-02-28
1985-11-26
Apley, Richard J.
Surgery
Truss
Perineal
128 54, 446415, 446418, A61H 3100
Patent
active
045549109
ABSTRACT:
A portable, easy to use cardio pulmonary resuscitation (CPR) pressure indicator is described which can be placed on a patient's chest to transmit successive resuscitation compression forces applied by a treating person and give a perceptible (e.g., audible) signal when an appropriate force and resultant compression stroke has been achieved. In preferred forms, the indicator device includes force transmitting structure presenting a first surface for placement on a patient's chest region, a second surface for engagement by the hands of a person treating the patient, and structure for transmitting force supplied by the person through the first surface and to the chest region of the patient. The overall device further includes a signal generator operably coupled with the force-transmitting structure for giving a perceptible signal when a predetermined force has been transmitted to the patient's chest region. Advantageously, the overall device includes separate, opposed, upper and lower plates operably coupled for movement of the upper plate relative to the lower plate when force is applied to the former, including biasing structure such as a coiled spring interposed between the upper and lower plates for resisting relative plate movement. The signal is advantageously generated by provision of a spring metal body interposed between the plates and configured for deflecting and giving an audible "click".
REFERENCES:
patent: 4019501 (1977-04-01), Harris
patent: 4059099 (1977-11-01), Davis
patent: 4077400 (1978-03-01), Harrigan
patent: 4237872 (1980-12-01), Harrigan
Apley Richard J.
Health Education Publication Company, Inc.
Macey H.
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