Nasal mask

Details Nasal mask Nasal mask

2005-08-02

2005-08-02

Dawson, Glenn K. (Department: 3731)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S206210, C128S207120, C137S512150

Reexamination Certificate

active

06923181

ABSTRACT:
A system is disclosed comprising a high pressure gases source: for example a compressor, a low cross section conduit adapted to convey gases from the compressor, and a patient interface delivering gases to the patient. The patient interface includes valve member which is substantially closed during inspiration and venting externally during expiration. The combination of the low cross section and lightweight conduit and the valve member result in increased patient comfort.

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