Surgery – Truss – Pad
Patent
1979-10-03
1981-11-10
Kamm, William E.
Surgery
Truss
Pad
A61B 502
Patent
active
042992338
ABSTRACT:
A cushioning device on which a human body may lie or recline, as in resting, sleeping or sitting, which cushioning device contains a transducer or pickup for body vibrations such as heart pulses, respiration or body tremors. In one form, the cushioning device is in the form of an elongated mattress, at least a portion of the upper wall of which is formed of a flexible material such as flexible plastic or resin impregnated and coated cloth. The interior of the mattress is filled with a liquid such as water or oil through which medium body vibrations may be transmitted. A transducer, such as a piezoelectric sensor or other form of sensor which is operable to sense sounds transmitted through the liquid and generate or modulate electrical signals, is operatively coupled to the liquid within the mattress either by direct contact therewith or through a flexible portion of the wall of the mattress. Electronic analyzing and display means is provided which is connected to the transducer and is either supported by the mattress or is remote therefrom. Communication between such electronic circuit analyzing means and the transducer is effected either by flexible cable or short wave communication.
REFERENCES:
patent: 3727606 (1973-04-01), Sielaff
patent: 3990296 (1976-11-01), Erikson
patent: 4066072 (1978-01-01), Cummins
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