Mask system
AssigneeResMed Limited
InventorsMichael Andrew Jones, Amal Shirley Amarasinghe, Timothy Tsun-Fai Fu, Perry David Lithgow, Jim Saada, Fiachra Marcus Sweeney
Life of this patent
Estimating the term…
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.
Claims41
1-53. (canceled)
A mask system for treating sleep disordered breathing comprising headgear, a frame, and shell/cushion including at least a pair of spaced frame-receiving channels, wherein the frame is adapted to be removably insertable in the frame-receiving channels of the shell/cushion.
A connection piece for connecting a mask to a conduit which can carry an air flow to said mask, said connection piece including an inlet and an outlet and a passage wall to carry said air flow therebetween, the connection piece including, in the vicinity of said outlet between said outlet and said inlet, a vent wall extending away from said passage wall, said vent wall including at least one aperture therethrough.
A mask for treating sleep disordered breathing, said mask having a cushion with an inner and outer surface, at least one flange surrounding at least 20% of said cushion, said mask having a frame having a shape which substantially matches contours of said flange so that said frame can be positioned adjacent said flange when said cushion is in a shape suitable for use by a patient;
- and structure to hold the flange to the frame.
A mask system for treating sleep disordered breathing comprising:
- a frame;
- a cushion provided to the frame;
- a strap connector provided to the frame, the strap connector including at least one anchor point;
- and
- headgear to hold the cushion in sealing communication with at least one airway of the patient, said headgear including at least one strap portion having a hole or slit configured to be aligned with the anchor point such that the anchor point is inserted into the slit or hole to anchor the headgear to the frame.
Dependencies are inferred from the claim text.