Mask system

Details Mask system Mask system

2011-01-04

2011-01-04

Douglas, Steven O (Department: 3771)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S205250, C128S206240

Reexamination Certificate

active

07861715

ABSTRACT:
A mask system for treating sleep disordered breathing, comprising headgear, a shell/cushion including a channel adjacent a front aperture, a frame, an elbow including at least one undercut on a proximal end, a retaining ring including a rear flange adapted to be retainably insertable in the channel of the shell/cushion, and a front flange adapted to retainably engage with the at least one undercut of the elbow.

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