US 11,696,994 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 Aug. 7, 2020, as Appl. No. 16/987,520.
Application 16/987,520 is a continuation of application No. 15/652,671, filed on Jul. 18, 2017, granted, now 10,744,290.
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 61/443,623, filed on Feb. 16, 2011.
Claims priority of provisional application 61/388,357, filed on Sep. 30, 2010.
Prior Publication US 2020/0360640 A1, Nov. 19, 2020
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)] 21 Claims
OG exemplary drawing
 
1. A mask system for delivery of respiratory therapy to a patient, comprising:
a mouth portion comprising:
a mouth cushion adapted to form a seal with the patient's mouth, the mouth cushion comprising a recessed portion with a first outlet opening in a superior region of the mouth cushion; and
a fascia that is more rigid than the mouth cushion and forms a mouth plenum chamber together with the mouth cushion, the fascia comprising a headgear connector and an inlet opening, the mouth plenum chamber being configured to receive pressurized, breathable gas through the inlet opening;
a nares portion that is configured to nest within the recessed portion of the mouth cushion and comprises:
a nares sealing portion adapted to form a seal with the patient's nares; and
a plenum base that forms at least part of a nares plenum chamber and includes a nares portion opening, the nares plenum chamber being configured to receive at least a portion of the pressurized, breathable gas from the mouth plenum chamber through the nares portion opening; and
a cushion clip configured to secure the nares portion to the mouth portion, the cushion clip comprising:
a wall that is more rigid than the mouth cushion and the nares portion and forms at least part of a gas flow passage that pneumatically connects the nares plenum chamber to the mouth plenum chamber when the cushion clip is secured to the mouth portion and the nares portion;
a first flange positioned on an outer surface of the wall, the first flange being inserted through the nares portion opening to engage an interior surface of the plenum base; and
a second flange configured to secure the cushion clip to the mouth cushion,
wherein the recessed portion of the mouth cushion and first outlet opening are oriented so that the pressurized, breathable gas flowing through the cushion clip flows in a posterior direction.