Pneumatic system

Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure

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12820424, 12820428, 12820513, 12820514, 12820524, A61M 1600

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active

056645635

ABSTRACT:
A pneumatic system is provided for a ventilator is provided for controlling inspired and expired patient gas flow during respiratory therapy. The pneumatic system includes a pneumatic circuit for controlling a supply of one or more selected gases to a patient and a disposable patient breathing circuit for isolating exhaled patient gasses from the pneumatic circuit. The pneumatic circuit includes a dual venturi for assisting compression and expansion of a flexible gas reservoir of the patient breathing circuit.

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