Pressure monitoring system

Details Pressure monitoring system Pressure monitoring system

1978-10-19

1979-11-20

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

73119A, 128DIG3, G01L 702

Patent

active

041746376

ABSTRACT:
A pressure monitoring system especially suitable for use with extra-corporeal circulation systems such as dialyzers, blood cell separators, oxygenators and the like, in which the internal system pressure must be monitored at one or more locations in the blood circuit, and appropriate warnings provided of pressure increases or decreases within defined limits. An initial pressure measuring cycle is provided and must be completed successfully before the main operating cycle of the overall system can begin. A pressure transducer provides signals to a digital closed-loop system which provides a suitable compensation during the initial or primary cycle and then holds that compensation value during the machine running cycle. Excursions of pressure beyond upper and lower limits of the stored reference or compensation value, in either direction, will cause the running cycle to terminate automatically.

REFERENCES:
patent: 3240207 (1966-03-01), Barker et al.
patent: 3866473 (1975-02-01), Teitelbaum et al.
patent: 3937087 (1976-02-01), Heggie

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