Importance

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Abstract

A resuscitator for ventilating a patient is provided which includes a ventilator mask, a manually collapsible gas receptacle, a gas flow manifold having three gas flow passages for delivering ventilating gas from a source of ventilating gas to the mask. The third gas flow passage is coupled to the mask, the first gas flow passage is coupled to the gas receptacle, and the second gas flow passage is in flow communication with a source of ventilating gas. A one-way flow valve is mounted intermediate the second and first gas flow passages and a one-way flow valve is mounted intermediate the first and third gas flow passages. The one-way flow valves are mounted so that when the gas receptacle is collapsed, the one flow valve prevents flow from the first gas flow passage to the second gas flow passage and the other flow valve allows flow from the first gas flow passage to the third gas flow passage. A gas outlet is provided in the third gas flow passage which is closed when there is flow from the first to the third gas flow passage. Finally, an air escape device is mounted to a wall of the gas flow manifold and in flow communication with the gas outlet, the air escape device being manually adjustable to control a minimum pressure at which air is allowed to pass through the gas outlet and to atmosphere.

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First Claim