US 12,076,488 B2
Patient interface
Rupert Christian Scheiner, Sydney (AU); William Laurence Hitchcock, Sydney (AU); Anthony Paul Barbara, Sydney (AU); Adam Francis Barlow, Sydney (AU); Craig David Edwards, Sydney (AU); Lachlan Richard Goldspink, Sydney (AU); Kirrily Michele Haskard, Sydney (AU); Murray William Lee, Sydney (AU); Frederick Arlet May, Sydney (AU); Gerard Michael Rummery, Woodford (AU); Shiva Kumar Shanmuga Sundara, Sydney (AU); Chia Ik Tan, Sydney (AU); Stewart Joseph Wagner, Hawkesbury (AU); Alicia Kristianne Wells, Sydney (AU); Martin Forrester, Trenton (CA); and Ralph Jourdan, Morfelden (DE)
Assigned to ResMed Pty Ltd, Bella Vista (AU)
Filed by ResMed Pty Ltd, Bella Vista (AU)
Filed on Feb. 8, 2024, as Appl. No. 18/436,151.
Application 18/436,151 is a continuation of application No. 18/083,707, filed on Dec. 19, 2022, granted, now 11,931,513.
Application 18/083,707 is a continuation of application No. 16/710,216, filed on Dec. 11, 2019, granted, now 11,612,711, issued on Mar. 28, 2023.
Application 16/710,216 is a continuation of application No. 14/760,808, granted, now 10,543,332, issued on Jan. 28, 2020, previously published as PCT/AU2014/000026, filed on Jan. 16, 2014.
Claims priority of provisional application 61/904,974, filed on Nov. 15, 2013.
Claims priority of provisional application 61/839,916, filed on Jun. 27, 2013.
Claims priority of provisional application 61/837,521, filed on Jun. 20, 2013.
Claims priority of provisional application 61/823,192, filed on May 14, 2013.
Claims priority of provisional application 61/823,353, filed on May 14, 2013.
Claims priority of provisional application 61/817,674, filed on Apr. 30, 2013.
Claims priority of application No. 2013900132 (AU), filed on Jan. 16, 2013; application No. 605907 (NZ), filed on Jan. 16, 2013; and application No. 2013900168 (AU), filed on Jan. 18, 2013.
Prior Publication US 2024/0173505 A1, May 30, 2024
Int. Cl. A61M 16/06 (2006.01); A61M 16/00 (2006.01); A61M 16/08 (2006.01); A61M 16/10 (2006.01); A61M 16/16 (2006.01)
CPC A61M 16/0622 (2014.02) [A61M 16/0069 (2014.02); A61M 16/06 (2013.01); A61M 16/0672 (2014.02); A61M 16/0683 (2013.01); A61M 16/0875 (2013.01); A61M 16/10 (2013.01); A61M 2016/0027 (2013.01); A61M 2016/0039 (2013.01); A61M 16/1055 (2013.01); A61M 16/107 (2014.02); A61M 16/16 (2013.01); A61M 2202/0208 (2013.01); A61M 2205/0216 (2013.01); A61M 2210/0618 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A patient interface to deliver pressurized gas to a patient to treat sleep disordered breathing, the patient interface comprising:
a seal-forming structure and a plenum chamber constructed in one piece from silicone and at least partly forming a gas chamber, the seal-forming structure being configured to seal around an inferior periphery of the patient's nose and below the bridge of the nose, the seal-forming structure having one nasal opening shaped and dimensioned to provide pressurized gas to both nares of the patient in use, the seal-forming structure comprising a pair of thickened sections, each of the thickened sections being located on a corresponding lateral side of the seal-forming structure, and each of the thickened sections being thicker than adjacent portions of the seal-forming structure such that an interior side of each of the thickened sections extends farther into the gas chamber than adjacent portions of the seal-forming structure that form the gas chamber; and
a retaining structure connected to the plenum chamber and constructed from a different material than the silicone of the seal-forming structure and the plenum chamber such that the retaining structure is more rigid than the seal-forming structure and the plenum chamber;
a frame releasably connected to the retaining structure and constructed from a different material than the silicone of the seal-forming structure and the plenum chamber such that the frame is more rigid than the seal-forming structure and the plenum chamber, the frame comprising a plurality of vent holes and a connection port;
a tube having a first end connected to the frame at the connection port and a second end configured to be connected to an air circuit to receive pressurized gas from a respiratory pressure therapy device; and
a positioning and stabilising structure comprising a strap configured to engage the patient's head and maintain the seal-forming structure in sealing contact with the patient's face, and the positioning and stabilising structure comprising a rigidiser arm assembly, the rigidiser arm assembly comprising a first rigidiser arm and a second rigidiser arm.