Respiratory test apparatus

Details Respiratory test apparatus Respiratory test apparatus

1990-10-23

1993-05-18

Kamm, William E.

Surgery

Truss

Pad

128727, 73861074, 73861071, 73242, A61B 5093

Patent

active

052111806

ABSTRACT:
A respiratory test apparatus for lung function comprises a chamber into which air can be blown by a subject to displace a piston. The chamber communicates with a space shielded from the incoming air flow to provide a measure of the static air pressure in the chamber, a pressure transducer providing an input of that pressure value a data processor. The data processor is arranged to provide outputs indicative of such functions as a subject's peak respiratory flow rate and the volume of air exhaled.

REFERENCES:
patent: 2538785 (1951-01-01), Korig
patent: 3458565 (1976-05-01), Wright
patent: 4041935 (1977-08-01), Garbe
patent: 4259967 (1981-04-01), Vooren et al.
patent: 4444201 (1984-04-01), Itoh
patent: 4558710 (1985-12-01), Eichler
patent: 5058601 (1991-10-01), Riker

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