Surgery – Respiratory method or device – Gas produced by electrolysis or chemical reaction
Patent
1991-06-19
1993-06-29
Burr, Edgar S.
Surgery
Respiratory method or device
Gas produced by electrolysis or chemical reaction
12820512, 12820517, A61M 1500
Patent
active
052224791
ABSTRACT:
A self-contained portable personal breathing apparatus that has a casing housing a canister containing an oxygen evolving chemical. The casing is disposed inside a cover which is disposed inside a bag. The cover and the casing form a thermal insulating pocket between them, and with the cover material and the casing material, also made of thermally insulating material, a triple layer of thermal insulation is formed around the canister to protect oxygen produced therein from the heat of reaction of the chemical in the canister. A heat exchanger is situated atop the canister to further cool oxygen before inhalation, and breathing tube extends from the bag to the user for channeling exhaled breath and oxygen.
REFERENCES:
patent: 4019509 (1977-04-01), Li et al.
patent: 4409978 (1983-10-01), Bartos
patent: 4515156 (1985-05-01), Khudosovtsev et al.
Brauer Lothar
Dahrendorf Klaus-Dieter
Haertle Klaus
Hunnebeck Volker
Mascher Werner
Auergesellschaft GmbH
Burr Edgar S.
Lewis Aaron J.
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