US 12,337,112 B2
Nasal mask system
Matthew Eves, Sydney (AU); Memduh Guney, Sydney (AU); and Rupert Christian Scheiner, Sydney (AU)
Assigned to ResMed Pty Ltd, Bella Vista (AU)
Filed by ResMed Pty Ltd, Bella Vista (AU)
Filed on Feb. 28, 2022, as Appl. No. 17/682,222.
Application 17/682,222 is a continuation of application No. 16/190,337, filed on Nov. 14, 2018, granted, now 11,305,083.
Application 16/190,337 is a continuation of application No. 14/358,482, granted, now 10,166,355, issued on Jan. 1, 2019, previously published as PCT/AU2012/001416, filed on Nov. 15, 2012.
Claims priority of application No. 2011904754 (AU), filed on Nov. 15, 2011.
Prior Publication US 2022/0176055 A1, Jun. 9, 2022
Int. Cl. A61M 16/06 (2006.01); A61M 16/08 (2006.01); A61M 11/00 (2006.01); A61M 16/10 (2006.01)
CPC A61M 16/0622 (2014.02) [A61M 16/06 (2013.01); A61M 16/0616 (2014.02); A61M 16/0825 (2014.02); A61M 11/00 (2013.01); A61M 16/0633 (2014.02); A61M 16/0683 (2013.01); A61M 16/107 (2014.02); A61M 2202/0225 (2013.01); A61M 2202/30 (2013.01); A61M 2205/3569 (2013.01); A61M 2205/3592 (2013.01); A61M 2205/50 (2013.01); A61M 2205/6054 (2013.01); A61M 2205/8206 (2013.01); A61M 2205/84 (2013.01); A61M 2230/432 (2013.01); A61M 2250/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A nasal mask configured to deliver a supply of air at positive pressure to airways of a patient, the nasal mask comprising:
a cushion including a sealing cuff configured to form a seal with the patient's airways,
wherein the cushion includes a plenum chamber configured to receive a portion of the patient's nose,
wherein the plenum chamber is pressurizable to a therapeutic pressure above ambient air pressure,
wherein the plenum chamber includes an attachment region configured to fluidly couple to an air delivery system,
wherein the plenum chamber further includes a side wall region extending between the sealing cuff and the attachment region,
wherein the sealing cuff and the plenum chamber comprise a one piece molded construction,
wherein the sealing cuff and the plenum chamber comprise a flexible, elastomeric material,
wherein the cushion further comprises a pair of headgear connectors, each of the pair of headgear connectors disposed on a respective side of the side wall region of the plenum chamber, and each of the pair of headgear connectors comprises a flexible, elastomeric material and are integrally formed with the side wall region of the plenum chamber as part of the one piece molded construction,
wherein the sealing cuff comprises a membrane seal and an undercushion arranged anterior to the membrane seal to form a dual layer structure,
wherein the membrane seal extends around an entire perimeter of the cushion including a nose ridge region, sides of the nose region, corners of nose region, and a top lip region configured to seal around both nares of the patient's nose, and
wherein the undercushion is only provided in the top lip and corners of nose regions such that the sides of the nose region includes a single layer or membrane only structure; and
a vent configured to allow patient-exhaled CO2 to flow to an exterior of the plenum chamber.