CPC A62B 9/04 (2013.01) [A61M 16/06 (2013.01); A61M 16/0611 (2014.02); A61M 16/0622 (2014.02); A61M 16/0666 (2013.01); A61M 16/0683 (2013.01); A61M 16/0816 (2013.01); A61M 16/0825 (2014.02); A61M 2205/42 (2013.01); A61M 2210/0618 (2013.01)] | 22 Claims |
1. A patient interface assembly configured to deliver pressurized respiratory gas to a patient's airways, the patient interface assembly comprising:
a cushion configured to sealingly engage the patient's face;
a plenum base supporting the cushion;
a positioning and stabilizing structure configured to support the cushion and the plenum base on the patient's face, the positioning and stabilizing structure comprising a stiffened portion configured to extend across the patient's cheek;
a connection system configured to secure the plenum base to the positioning and stabilizing structure; and
a removable sleeve formed from a loop of fabric material configured to be slipped over the stiffened portion of the positioning and stabilizing structure so that the stiffened portion is inserted into a cavity formed by the fabric material of the removable sleeve,
wherein the removable sleeve is configured to be secured to the stiffened portion of the positioning and stabilizing structure by inserting a projection into a side cutout, and
wherein at least one of the projection and the side cutout is part of the connection system that is configured to secure the positioning and stabilizing structure to the plenum base.
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