Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1987-07-20
1989-04-04
Chambers, A. M.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820525, A62B 1802
Patent
active
048175978
ABSTRACT:
A self-contained closed-circuit oxygen-generating breathing appratus is provided with a partition wall disposed in such a manner as to oppose at least the lower portion of the inner surface of a breathing bag. The partition wall partitions the central portion and peripheral portion of the interior of the breathing bag along the inner surface of the breathing bag, and the space or gap between the partition wall and the inner surface of the breathing bag acts as a passage for oxygen-enriched gas discharged from the outlet of a canister of an oxygen-generating agent into the interior of the breathing bag. The oxygen-enriched gas can flow through the passage while kept in good contact with the inner surface of the breathing bag, and thus can be cooled to a temperature suitable for inhalation by the user.
REFERENCES:
patent: 3088810 (1963-05-01), Hay
patent: 4459981 (1984-07-01), Mascher et al.
patent: 4490272 (1984-12-01), Malafosse et al.
Chambers A. M.
Japan Pionics, Ltd.
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