Method for measuring physiological parameter

Details Method for measuring physiological parameter Method for measuring physiological parameter

1966-03-28

1978-04-25

Pendegrass, Verlin R.

Surgery

Truss

Perineal

128 2S, A61B 502

Patent

active

040857409

ABSTRACT:
A method for measuring such physiological parameters as pulse rate and respiration without physically connecting electrodes or other sensors to the body. A beam of phased energy, for example microwaves, is directed toward the body of a person at a region thereon which undergoes physical displacement corresponding to variations in the parameter being measured. The phase relationship of the energy reflected from the body is compared with that of the transmitted energy to determine the extent of physical movement of the body region as affected by the parameter being measured. The present method may be used as an overt or covert lie detection technique.

REFERENCES:
patent: 2822536 (1958-02-01), Sandretto
patent: 2944542 (1960-07-01), Barnett et al.
patent: 3230951 (1966-01-01), Teschner
patent: 3251057 (1966-05-01), Buchler et al.
patent: 3270339 (1966-08-01), McEuen et al.

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