Portable CPR breathing apparatus

Details Portable CPR breathing apparatus Portable CPR breathing apparatus

1997-06-17

1999-11-09

Weiss, John G.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820524, 12820425, 12820615, 12820712, A61M 1600

Patent

active

059794445

ABSTRACT:
A breathing assisting device. The device includes a face mask and an oxygen dispenser which alternately injects oxygen (i) into the mask during an inhalation phase, and (ii) into a conveying piece which in turn conveys the oxygen through the mask during an exhalation phase in a manner which produces a subatmospheric pressure, or suction, within the mask during the exhalation phase, thereby assisting the user with both inhalation and exhalation.

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