Device for breathing measurement

Details Device for breathing measurement Device for breathing measurement

1976-09-16

1977-08-16

Michell, Robert W.

Surgery

Truss

Perineal

73239, 272 99, A61B 508

Patent

active

040419355

ABSTRACT:
A device for monitoring the patient's ability to exhale has a piston slidable within a body part by air exhaled through a mouthpiece against a spring. A vent allows part of the air to discharge between the mouthpiece and the piston. By providing one or more discharge openings having removable seals, the amount of air discharged can be set to suit particular circumstances. Advantageously there is provided an indicator movable by, but not returnable with, the piston, to show the maximum position on a scale. The surface of the body part adjacent the scale may be so surfaced as to receive written matter.

REFERENCES:
patent: 3720202 (1973-03-01), Cleary
patent: 3794072 (1974-02-01), Diedrich et al.
patent: 3826247 (1974-07-01), Roskin et al.
patent: 3848585 (1974-11-01), Otsap et al.
patent: 3862628 (1975-01-01), Williams
patent: 3871364 (1975-03-01), Boehringer

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