Spirometer device

Details Spirometer device Spirometer device

1979-12-13

1981-09-29

Howell, Kyle L.

Surgery

Truss

Pad

272 99, 46 88, A61B 508

Patent

active

042917042

ABSTRACT:
A spirometer device includes an open ended inflatable elastomeric vessel with calibrated indicia along its length for indicating the volume of gas contained in the vessel and a mouth piece consisting of two relatively rotatable sections, one of said sections being connected to the open end of the vessel so that air can be blown through the mouth piece to inflate the vessel. The mouth piece contains a unique valving system and an air actuated sound generating device so that depending upon the relative angular relationship of the two sections, air can be blown into the vessel and retained in the vessel or allowed to escape from the vessel either through the sound generating device or not.

REFERENCES:
patent: 225710 (1880-03-01), Marsh
patent: 1781735 (1930-11-01), Scott
patent: 3066440 (1962-12-01), Van Dam
patent: 3321976 (1967-05-01), Jones
patent: 3333844 (1967-08-01), Jurschak
patent: 3343529 (1967-09-01), Miller et al.
patent: 3507271 (1970-04-01), Reiner
patent: 3810461 (1974-05-01), McCormick
patent: 3826247 (1974-07-01), Ruskin et al.
patent: 4158360 (1979-06-01), Adams

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