External blood pressure transducer

Details External blood pressure transducer External blood pressure transducer

1975-06-23

1976-09-21

Gill, James J.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

338 4, 338 42, G01L 906

Patent

active

039811972

ABSTRACT:
Piezoresistive deflection-sensitive beam elements are encapsulated in a disc of elastomeric material which forms a fluid pressure responsive diaphragm. The beam elements are oriented within the diaphragm so as to be strained in tension or compression when the diaphragm is deformed by fluid pressure. The beam elements are connected in a bridge circuit to produce an electric signal which provides a fluid pressure indication or measurement, as in a blood pressure monitoring catheter.

REFERENCES:
patent: 3315201 (1967-04-01), Werme
patent: 3473386 (1969-10-01), Nielsen et al.

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