Blood pressure and pulse rate measuring apparatus

Details Blood pressure and pulse rate measuring apparatus Blood pressure and pulse rate measuring apparatus

1976-05-14

1978-08-08

Howell, Kyle L.

Surgery

Truss

Perineal

128 205T, A61B 502

Patent

active

041050207

ABSTRACT:
In conventional blood pressure measuring apparatus, the simultaneous measurement of a pulse rate and a blood pressure is difficult without the use of complicated attachment devices. In this invention, a pulse rate measuring circuit is provided along with a blood pressure measurement apparatus for a simultaneous measurement of both pulse rate and blood pressure. Both measurements are derived from at least one microphone signal contained in a cuff-device. The pulse rate measuring circuit is designed to commence counting of the number of pulses after at least two Korotkoff's sounds have been detected and continues counting until a predetermined number is reached while the time period required for counting the predetermined number of pulses is measured. The pulse rate is determined by dividing the predetermined number by the measured time period.

REFERENCES:
patent: 3051165 (1962-08-01), Kompelien
patent: 3192921 (1965-07-01), Erickson et al.
patent: 3229686 (1966-01-01), Edmark, Jr.
patent: 3536062 (1970-10-01), Horn
patent: 3978848 (1976-09-01), Yen et al.
Randall, M. J., Proceedings of the I.E.E.E., vol. 63 No. 10, Oct. 1975, pp. 1399-1403.

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