Apparatus for the determination of respiratory passageway resist

Details Apparatus for the determination of respiratory passageway resist Apparatus for the determination of respiratory passageway resist

1977-01-26

1978-10-31

Cohen, Lee S.

Surgery

Truss

Perineal

73211, A61B 508

Patent

active

041228391

ABSTRACT:
An apparatus for the determination of the respiratory passageways resistance, including a flow resistance in the breathing or respiratory flow passageway, whose resistance value is periodically varied by a frequency which lies above the breathing frequency, and including as well a pressure and/or, as occasioned, a flow measurement gauge. In conjunction with the flow resistance, the resistance value thereof is varied in an essential sinusoidal manner, and the pressure and/or flow measurement gauge incorporates two measuring passageways, there being detected in the first passageway only the pressure and/or occasioned flow components in the respiratory passageway due to the lower frequencied breathing, and in the second passageway the higher frequencied resistance variations.

REFERENCES:
patent: 3036569 (1962-05-01), Clement et al.
patent: 3598111 (1971-08-01), Kahn et al.
patent: 3621833 (1971-11-01), Crane
patent: 3713436 (1973-01-01), Hardway, Jr.
patent: 3726271 (1973-04-01), Mondshine et al.
patent: 3857385 (1974-12-01), Hampl

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