Altitude conditioning method and apparatus

Details Altitude conditioning method and apparatus Altitude conditioning method and apparatus

1976-01-05

1978-05-02

Michell, Robert W.

Surgery

Truss

Pad

128202, 128210, 128147, A61M 1600

Patent

active

040869237

ABSTRACT:
A breathing method and apparatus for enabling a user, while at low altitude, e.g. sea level, to acclimate himself to high altitude conditions. The apparatus includes an inspiratory tube and an expiratory tube and means for selectively mixing a certain portion of oxygen depleted expired air with ambient air to supply air for inspiration. The first ends of the inspiratory and expiratory tubes are coupled to a mouth and/or nose breathing mask. The remote end of the expiratory path is coupled through a proportioning means to the environment and to a reservoir or air storage chamber. The remote end of the inspiratory path is also coupled to the proportioning means so as to pull ambient air from the environment, as well as oxygen depleted air from the reservoir. By varying the proportioning means, the ratio of ambient air to expired air, and thus the oxygen concentration of the inspired air, is varied so as to enable the user to select the particular elevated altitude to be simulated.

REFERENCES:
patent: 2227536 (1941-01-01), D'Agostino
patent: 2844145 (1958-07-01), Berge
patent: 3513843 (1970-05-01), Exler

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