Pneumatic shuttle valve for a ventilator system

Details Pneumatic shuttle valve for a ventilator system Pneumatic shuttle valve for a ventilator system

2005-06-08

2008-11-18

Douglas, Steven O (Department: 3771)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S204180, C128S205110

Reexamination Certificate

active

07451763

ABSTRACT:
A pneumatic shuttle valve for a ventilator is disclosed. The pneumatic shuttle valve selectively connects one of two inlet openings to an outlet opening. The shuttle valve has a plug that is forced by gas pressure entering the second inlet opening, to move to and seal against a first sealing surface, thereby forming a passageway between the second inlet opening and the outlet opening. The plug is forced by gas entering the first inlet opening, to move to and seal against a second sealing surface, thereby forming a passageway between the first inlet opening and the outlet opening.

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