Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1987-08-26
1989-03-14
Coven, Edward M.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820428, 12820511, 12820517, A61M 1600
Patent
active
048117323
ABSTRACT:
A protective breathing apparatus with breathing air circulation and addition of oxygen alone through a lung-controlled valve is to be improved so that no oxygen depletion of the breathing air in the circulation occurs, even if the breath volumes are small, and that preflushing the circulation with oxygen before applying the protective breathing apparatus is unnecessary. In addition to a breathing bag space, a storage space, unfoldable during the exhaling phase and unchangeable during the inhaling phase, is provided in the circulation.
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Coven Edward M.
Draegerwerk AG
Reichle K. M.
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