US 12,465,708 B2
Valsalva mask
Matthew Roger Stephenson, London (GB); and Melissa Catherine Bornholdt, Auckland (NZ)
Assigned to Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed by Fisher & Paykel Healthcare Limited, Auckland (NZ)
Filed on Jun. 21, 2021, as Appl. No. 17/353,273.
Application 17/353,273 is a continuation of application No. 16/829,876, filed on Mar. 25, 2020, granted, now 11,065,412.
Application 16/829,876 is a continuation of application No. 15/960,196, filed on Apr. 23, 2018, granted, now 10,946,155, issued on Mar. 16, 2021.
Application 15/960,196 is a continuation of application No. 14/425,599, granted, now 9,950,130, issued on Apr. 24, 2018, previously published as PCT/NZ2013/000155, filed on Sep. 3, 2013.
Claims priority of provisional application 61/696,756, filed on Sep. 4, 2012.
Prior Publication US 2022/0143342 A1, May 12, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 16/06 (2006.01); A61M 16/08 (2006.01); A61M 16/20 (2006.01)
CPC A61M 16/0605 (2014.02) [A61M 16/0633 (2014.02); A61M 16/065 (2014.02); A61M 16/0683 (2013.01); A61M 16/0825 (2014.02); A61M 16/208 (2013.01); A61M 16/0616 (2014.02); A61M 2205/15 (2013.01); A61M 2210/0618 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A mask assembly comprising a mask seal, a mask base, and a mask seal adjustment mechanism coupled to the mask base, the mask seal adjustment mechanism configured to adjust a lateral distance between opposite walls of the mask seal by providing and controlling a lateral force to compress the mask seal primarily in a lateral direction across a width of the mask assembly, the mask seal adjustment mechanism comprising a swing arm, and the lateral force to compress the mask seal primarily in the lateral direction being controlled by the swing arm, wherein the swing arm is configured to compress a lateral periphery of the mask seal by pivoting around an axis extending in the lateral direction of the mask.