US 12,214,136 B2
Adjustable headgear tubing for a patient interface
Stewart Joseph Wagner, Hawkesbury (AU); Aaron Samuel Davidson, Sydney (AU); Gerard Michael Rummery, Woodford (AU); Adam Francis Barlow, Sydney (AU); Hugh Francis Stewart Thomas, Sydney (AU); Justin John Formica, Sydney (AU); and Mira Aswani, Sydney (AU)
Assigned to ResMed Pty Ltd, Bella Vista (AU)
Filed by RESMED PTY LTD, Bella Vista (AU)
Filed on Feb. 8, 2023, as Appl. No. 18/166,017.
Application 18/166,017 is a continuation of application No. 17/780,804, granted, now 11,666,724, previously published as PCT/AU2020/051286, filed on Nov. 27, 2020.
Claims priority of application No. 2019904513 (AU), filed on Nov. 29, 2019; and application No. 2020900503 (AU), filed on Feb. 21, 2020.
Prior Publication US 2023/0241342 A1, Aug. 3, 2023
Int. Cl. A61M 16/06 (2006.01); A61M 16/08 (2006.01)
CPC A61M 16/0683 (2013.01) [A61M 16/0622 (2014.02); A61M 16/0672 (2014.02); A61M 16/0875 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A positioning and stabilising structure to hold a seal-forming structure in a therapeutically effective position on a head of a patient, the seal-forming structure being constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's airways for sealed delivery of a flow of air at a therapeutic pressure of at least 4 cmH2O with respect to ambient air pressure throughout the patient's respiratory cycle in use, the positioning and stabilising structure comprising:
a front hoop extending, in use, across the patient's cheek regions and arranged to contact, in use, regions of the patient's head superior to an otobasion superior of the patient's head, the front hoop comprising:
lower portions of two gas delivery tubes fluidly connected to the seal-forming structure, each lower portion of the gas delivery tube extending, in use, across one of the patient's cheek regions, the two gas delivery tubes being on different sides of the patient's head, and
a link connecting the two gas delivery tubes between the lower portions and upper portions of the two gas delivery tubes; and
a rear strap configured, in use, to pass around the back of the patient's head;
a de-coupling mechanism configured to decouple positional adjustment of the upper portions of the gas delivery tubes from movement of the seal-forming structure away from the patient's face in use to enable positional adjustment of the upper portions of the gas delivery tubes on the patient's head; and
an adjustment mechanism configured to adjust the front hoop and the rear strap relative to the patient's head, the adjustment mechanism being arranged in a single operation to adjust both the front hoop and the rear strap to enable the positioning and stabilising structure to fit different size heads.