US 11,865,260 B2
Mask system
Justin John Formica, Sydney (AU); Jose Ignacio Romagnoli, Sydney (AU); Philip Rodney Kwok, Sydney (AU); Joel Edward Gibson, Sydney (AU); David Anthony Pidcock, Sydney (AU); Christopher Scott Skipper, Sydney (AU); and Stephen Gray, Sydney (AU)
Assigned to ResMed Pty Ltd, Bella Vista (AU)
Filed by ResMed Pty Ltd, Bella Vista (AU)
Filed on May 25, 2023, as Appl. No. 18/201,831.
Application 18/201,831 is a continuation of application No. 16/987,520, filed on Aug. 7, 2020, granted, now 11,696,994.
Application 16/987,520 is a continuation of application No. 15/652,671, filed on Jul. 18, 2017, granted, now 10,744,290, issued on Aug. 18, 2020.
Application 15/652,671 is a continuation of application No. 13/876,606, granted, now 9,737,678, issued on Aug. 22, 2017, previously published as PCT/AU2011/001259, filed on Sep. 30, 2011.
Claims priority of provisional application 61/528,524, filed on Aug. 29, 2011.
Claims priority of provisional application 61/457,981, filed on Jul. 27, 2011.
Claims priority of provisional application 61/443,623, filed on Feb. 16, 2011.
Claims priority of provisional application 61/388,357, filed on Sep. 30, 2010.
Prior Publication US 2023/0321381 A1, Oct. 12, 2023
Int. Cl. A61M 16/06 (2006.01); A61M 16/08 (2006.01); A61M 16/00 (2006.01); A61M 16/20 (2006.01)
CPC A61M 16/06 (2013.01) [A61M 16/0057 (2013.01); A61M 16/0611 (2014.02); A61M 16/0616 (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 16/0875 (2013.01); A61M 16/20 (2013.01); A61M 16/208 (2013.01); A61M 2202/0225 (2013.01); A61M 2205/0216 (2013.01); A61M 2210/0618 (2013.01); A61M 2210/0625 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A patient interface assembly configured to deliver respiratory therapy to a patient's airways, the patient interface assembly comprising:
an elastomeric piece configured to receive a flow of pressurized respiratory gas and sealingly engage the patient's face, the elastomeric piece forming a plenum and comprising:
a mouth sealing portion configured to form a seal around the patient's mouth and comprising a mouth opening configured to be aligned with the patient's mouth in use;
a nasal sealing portion configured to form a seal with an underside of the patient's nose and comprising a nasal opening configured to be aligned with one of the patient's nares in use, at least a portion of the nasal sealing portion being located superior to the mouth sealing portion; and
an anterior surface with an air inlet opening configured to be coupled to a connector and/or an air delivery tube, the plenum being bound by the anterior surface, the mouth sealing portion, and the nasal sealing portion, the plenum being configured to receive the pressurized gas through the air inlet opening and discharge the pressurized gas through the mouth opening and the nasal opening;
a stiffening structure that is attached to the anterior surface of the elastomeric piece, the stiffening structure comprising a central aperture that is sized so that the air inlet opening and a portion of the anterior surface surrounding the air inlet opening remain exposed through the central aperture, the stiffening structure being configured so that the entirety of the stiffening structure is inferior to the patient's nose in use; and
a positioning and stabilizing structure configured to be connected to the stiffening structure and support the elastomeric piece and the stiffening structure on the patient's head.