US 12,070,548 B2
Patient interface systems for ensuring effective seal
Matthew Eves, Sydney (AU); Adam Francis Barlow, Sydney (AU); and Gerard Michael Rummery, Woodford (AU)
Assigned to ResMed Pty Ltd, Bella Vista (AU)
Filed by ResMed Pty Ltd, Bella Vista (AU)
Filed on Sep. 8, 2022, as Appl. No. 17/940,078.
Application 17/940,078 is a continuation of application No. 16/580,237, filed on Sep. 24, 2019, granted, now 11,439,780.
Application 16/580,237 is a continuation of application No. 14/214,132, filed on Mar. 14, 2014, granted, now 10,456,540, issued on Oct. 29, 2019.
Claims priority of provisional application 61/798,900, filed on Mar. 15, 2013.
Prior Publication US 2023/0001118 A1, Jan. 5, 2023
Int. Cl. A61M 16/00 (2006.01); A61M 16/06 (2006.01)
CPC A61M 16/0057 (2013.01) [A61M 16/0611 (2014.02); A61M 16/0666 (2013.01); A61M 16/0683 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A patient interface system for delivering pressurized gas to a patient's airways for treatment of sleep disordered breathing, the system comprising:
a supply tube to deliver a supply of pressurized gas;
a patient interface configured to receive the supply of pressurized gas from the supply tube and deliver the pressurized gas to the patient's airways, the patient interface including left and right portions configured to form a seal with the patient's face; and
a seal maintenance device including:
first and second arms each including upper portions disposed respectively adjacent the left and right portions of the patient interface,
wherein, in use, the first and second arms are configured to move in response to movement of the supply tube by an external force such that the upper portions of the first and second arms respectively urge the left and right portions of the patient interface toward the patient's face to maintain the seal with the patient's face, and
wherein the first and second arms are pivotally coupled to one another.