Method for determining respiratory function

Details Method for determining respiratory function Method for determining respiratory function

1987-03-11

1989-02-07

Cohen, Lee S.

Surgery

Truss

Pad

A61B 508

Patent

active

048024929

ABSTRACT:
A method for determining respiratory function in subjects, as well as the apparatus thus employed. The method involves blocking exhalation while the subject inhales spontaneously. Increased volume in the lungs and face mask pressure are measured to determine respiratory compliance. When the exhalation block or occlusion is removed, flow of exhaled air and volume changes in the lungs are measured to determine the time constant. The relationship between time constant and respiratory compliance permits determination of respiratory resistance.

REFERENCES:
patent: 4031885 (1977-06-01), Davis et al.
patent: 4036222 (1977-07-01), Gillard et al.
patent: 4259967 (1981-04-01), Vooren et al.

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