Apparatus for determination of respiratory passageway resistance

Details Apparatus for determination of respiratory passageway resistance Apparatus for determination of respiratory passageway resistance

1976-12-07

1978-04-04

Howell, Kyle L.

Surgery

Truss

Perineal

A61B 508

Patent

active

040820882

ABSTRACT:
An apparatus for the determination of the respiratory passageway resistance, including a breathing tube which incorporates a flow resistance and a pulse generator for subjecting the breath flow to higher frequency pressure or, respectively, current pulsations, as well as a pressure gauge for measuring the pressure in the breathing tube. The pressure gauge is constituted of an alternating pressure gauge coordinated with the pulsating frequency of a pulse generator. As alternating pressure gauge there may be utilized a common mechanical-electrical transducer which, for detection of the alternating pressure, has an electrical frequency filter connected thereto.

REFERENCES:
patent: 3036569 (1962-05-01), Clements et al.
patent: 3713436 (1973-01-01), Hardway
patent: 3857385 (1974-12-01), Hampl
Journ. of Applied Physiology, vol. 8, pp. 587-594, 1956.
Medical Instrumentation, vol. 9, No. 1, Jan.-Feb. 1975, pp. 3-10.

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