Flexible force responsive transducer

Details Flexible force responsive transducer Flexible force responsive transducer

1975-05-19

1976-12-14

Howell, Kyle L.

Surgery

Truss

Perineal

128 2S, 128DIG29, 179111E, 307 88ET, A61B 508

Patent

active

039969223

ABSTRACT:
Apparatus for monitoring the respiration of a patient through utilization of a force responsive transducer, which ideally is a capacitor transducer constructed from alternate layers of conductive and nonconductive materials that are flexible such that when placed beneath a patient or a resilient patient support, such as a mattress, the distance between the plates of the transducer changes for the purpose of producing electrical responses that upon amplification energize indicator means, such as a visual alarm or an audible alarm. The transducer is responsive to the vertical, reciprocating forces and motions caused by respiration and along with the associated circuitry, is sufficiently sensitive to energize an alarm upon sensing a cessation of respiration.

REFERENCES:
patent: 3354373 (1967-11-01), Fatovic
patent: 3736436 (1973-05-01), Crites
patent: 3760794 (1973-09-01), Basham
patent: 3786495 (1974-01-01), Spence
patent: 3809828 (1974-05-01), Haugsjaa et al.
patent: 3890511 (1975-06-01), Haugsjaa et al.
patent: 3894243 (1975-07-01), Edelman et al.
patent: 3926177 (1975-12-01), Hardway, Jr. et al.
Bell Laboratories Record, Mar. 1973, p. 94.

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