Flow meter system

Details Flow meter system Flow meter system

1990-06-08

1991-08-13

Lewis, Aaron J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

128725, A62B 700

Patent

active

050387731

ABSTRACT:
A flow meter system having a disposable mouthpiece including symmetrically disposed pitot tubes for measuring the velocity of the respiratory gases flowing through the mouthpiece and an electronic module including sensitive pressure transducers coupled to the mouthpiece and operative over a wide dynamic range provides input signals to a signal processing network for converting the pressure readings to flow information useful in cardiopulmonary performance analyzing equipment.

REFERENCES:
patent: 2787999 (1957-04-01), Bennett
patent: 3098383 (1963-07-01), West
patent: 3144769 (1964-08-01), Francisco, Jr.
patent: 3196680 (1965-07-01), Curran
patent: 3232288 (1966-02-01), Krobath
patent: 3989037 (1976-11-01), Franetzki
patent: 4094508 (1978-06-01), Kirsch
patent: 4363238 (1982-12-01), Willam
patent: 4372169 (1983-02-01), Hughes
patent: 4403514 (1983-09-01), Osborn
patent: 4765326 (1988-08-01), Pieper

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