US 12,133,955 B2
Respiratory mask with cheek supports
Andrew Paul Maxwell Salmon, Auckland (NZ); and Jonathan David Harwood, Auckland (NZ)
Assigned to Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed by Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed on Oct. 6, 2023, as Appl. No. 18/482,338.
Application 18/482,338 is a continuation of application No. 17/546,571, filed on Dec. 9, 2021, granted, now 11,813,383.
Application 17/546,571 is a continuation of application No. 16/601,127, filed on Oct. 14, 2019, granted, now 11,224,711, issued on Jan. 18, 2022.
Application 16/601,127 is a continuation of application No. 15/135,020, filed on Apr. 21, 2016, granted, now 10,441,736, issued on Oct. 15, 2019.
Claims priority of provisional application 62/152,348, filed on Apr. 24, 2015.
Prior Publication US 2024/0123174 A1, Apr. 18, 2024
Int. Cl. A61M 16/06 (2006.01); A61M 16/08 (2006.01)
CPC A61M 16/0666 (2013.01) [A61M 16/06 (2013.01); A61M 16/0605 (2014.02); A61M 16/0683 (2013.01); A61M 16/0816 (2013.01); A61M 16/0875 (2013.01); A61M 2207/00 (2013.01); A61M 2210/06 (2013.01); A61M 2210/0618 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for forming a nasal prong, the method comprising:
positioning a spring within in a helical recess of a cavity of a mold tool;
injecting a material into the mold tool to form a wall structure of the nasal prong between the mold tool and a core, the wall structure having an external surface formed at least partially by the helical recess, an internal surface formed by the core, and a thickness defined between the external surface and the internal surface;
wherein the injecting the material into the mold tool forms a skin encasing the spring.