Blood pressure measurement system for filtering low-frequency, h

Details Blood pressure measurement system for filtering low-frequency, h Blood pressure measurement system for filtering low-frequency, h

1988-03-17

1989-08-22

Smith, Ruth S.

Surgery

Truss

Pad

128679, A61B 502

Patent

active

048586161

ABSTRACT:
A noise-immune blood pressure measurement system filters out high frequency noise and blood pulses. The system also recognizes and filters out slow, large noise signals in the range of 0.5 Hz. Such noise signals result when a patient wearing the system makes slow, large finger movements, or is slowly transported by a vehicle over a large bump, for instance. The system accurately derives systolic, mean arterial, and diastolic pressures even when used in a noisy emergency vehicle or battlefield situation.

REFERENCES:
patent: 3348534 (1967-10-01), Marx et al.
patent: 3581734 (1971-06-01), Croslin et al.
patent: 4144879 (1979-03-01), Nakayama et al.
patent: 4649928 (1987-03-01), Samaras et al.

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