US 11,752,367 B2
Patient interface systems
Gerard Michael Rummery, Woodford (AU); Robert Edward Henry, Sydney (AU); Phoebe Katherine Hill, Sydney (AU); Andrew Hurst, Sydney (AU); and Philip Michael Nurse, Sydney (AU)
Assigned to ResMed Pty Ltd, Bella Vista (AU)
Filed by ResMed Pty Ltd, Bella Vista (AU)
Filed on Oct. 31, 2019, as Appl. No. 16/669,566.
Application 14/070,677 is a division of application No. 13/389,313, granted, now 8,573,201, issued on Nov. 5, 2013, previously published as PCT/AU2010/001004, filed on Aug. 6, 2010.
Application 16/669,566 is a continuation of application No. 14/070,677, filed on Nov. 4, 2013, granted, now 10,500,424.
Application 13/389,313 is a continuation in part of application No. 12/763,467, filed on Apr. 20, 2010, abandoned.
Claims priority of application No. 2009903686 (AU), filed on Aug. 7, 2009; and application No. 2009904389 (AU), filed on Sep. 9, 2009.
Prior Publication US 2020/0061398 A1, Feb. 27, 2020
Int. Cl. A61M 16/06 (2006.01); A62B 9/04 (2006.01); A61M 16/08 (2006.01)
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
OG exemplary drawing
 
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.