US 12,465,713 B2
Respiratory mask system
Melissa Catherine Bornholdt, Auckland (NZ); Jonathan Mark Downey, Auckland (NZ); Bruce Michael Walls, Auckland (NZ); Adam Luke Gilbert, Auckland (NZ); Janine Elizabeth Collins, Auckland (NZ); Chris Onin Limpin Hipolito, Auckland (NZ); Thomas Mark Richardson, Auckland (NZ); Silas Sao Jin Siew, Auckland (NZ); James Patrick O'Connor, Auckland (NZ); Christopher John Large, Auckland (NZ); Tony William Spear, Auckland (NZ); Matthew Roger Stephenson, London (GB); Paul Mathew Freestone, Auckland (NZ); and Jake Baker Hocking, Auckland (NZ)
Assigned to Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed by Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed on Jul. 5, 2021, as Appl. No. 17/305,329.
Application 17/305,329 is a continuation of application No. 16/085,156, granted, now 11,083,862, previously published as PCT/NZ2017/050025, filed on Mar. 15, 2017.
Claims priority of provisional application 62/402,301, filed on Sep. 30, 2016.
Claims priority of provisional application 62/324,139, filed on Apr. 18, 2016.
Claims priority of provisional application 62/308,654, filed on Mar. 15, 2016.
Prior Publication US 2021/0330923 A1, Oct. 28, 2021
Int. Cl. A61M 16/06 (2006.01)
CPC A61M 16/0683 (2013.01) [A61M 16/0616 (2014.02); A61M 16/0666 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A respiratory mask system comprising:
a mask frame comprising:
an inlet configured to be coupled to a gas conduit in use;
a yoke channel extending longitudinally across the mask frame, the yoke channel defined at least by a rear wall, an upper wall, and a lower wall; and
one or more mask frame attachment features comprising a female attachment feature, wherein the female attachment feature comprises an anti-rotation groove recessed into the rear wall of the yoke channel; and
a yoke configured to be at least partially disposed in the yoke channel, the yoke comprising one or more yoke attachment features complementary to the mask frame attachment features, the one or more yoke attachment features comprising a male attachment feature; wherein the male attachment feature comprises a tongue projecting rearward from the yoke;
wherein a length direction of the anti-rotation groove extends along a length of the yoke channel; and
wherein the one or more yoke attachment features are configured to engage with the one or more mask frame attachment features to attach the yoke to the mask frame.