US 11,883,605 B2
Humidifier reservoir
Andrew Roderick Bath, Sydney (AU); Mark Bertinetti, Sydney (AU); Justin John Formica, Sydney (AU); Matthew Rolf Harrington, Gosford (AU); Saad Nasr, Sydney (AU); Joseph Samuel Ormrod, Sydney (AU); Jose Ignacio Romagnoli, Sydney (AU); Nathan John Row, Sydney (AU); Luke Andrew Stanislas, Sydney (AU); and Hargopal Verma, Sydney (AU)
Assigned to ResMed Pty Ltd, Bella Vista (AU)
Filed by ResMed Pty Ltd, Bella Vista (AU)
Filed on May 18, 2022, as Appl. No. 17/747,167.
Application 17/747,167 is a continuation of application No. 17/509,380, filed on Oct. 25, 2021, granted, now 11,357,948.
Application 17/509,380 is a continuation of application No. 16/432,120, filed on Jun. 5, 2019, granted, now 11,497,879.
Application 16/432,120 is a continuation of application No. 14/777,266, granted, now 10,342,950, issued on Jul. 9, 2019, previously published as PCT/AU2014/000264, filed on Mar. 14, 2014.
Claims priority of application No. 2013900901 (AU), filed on Mar. 15, 2013; application No. 2013901965 (AU), filed on May 31, 2013; application No. 2013902601 (AU), filed on Jul. 15, 2013; and application No. 2013904923 (AU), filed on Dec. 17, 2013.
Prior Publication US 2022/0273905 A1, Sep. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 16/16 (2006.01); A61M 16/00 (2006.01); A61M 16/10 (2006.01); F24F 6/00 (2006.01)
CPC A61M 16/16 (2013.01) [A61M 16/024 (2017.08); A61M 16/0066 (2013.01); A61M 16/0072 (2013.01); A61M 16/0075 (2013.01); A61M 16/1055 (2013.01); A61M 16/1065 (2014.02); A61M 16/161 (2014.02); A61M 2016/0027 (2013.01); A61M 2016/0033 (2013.01); A61M 2205/21 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/3382 (2013.01); A61M 2205/3584 (2013.01); A61M 2205/3653 (2013.01); A61M 2205/505 (2013.01); F24F 2006/008 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A water reservoir for an apparatus for generating a humidified flow of pressurized breathable air for delivery to an entrance of the airways of a patient for respiratory therapy, the water reservoir comprising:
a reservoir base configured to hold a predetermined maximum volume of water to be used for humidification of the pressurized breathable air;
a reservoir lid pivotally connected to the reservoir base to allow the water reservoir to be movable between an open position and a closed position, the reservoir lid comprising an inlet and an outlet; and
a seal configured to sealingly engage the reservoir lid and the reservoir base when the water reservoir is in the closed position,
wherein the reservoir base includes an overfill protection element having an egress path for water at a predetermined location,
wherein, in the closed position of the water reservoir, the seal blocks and seals the egress path to prevent fluid communication into and out of the water reservoir through the egress path, and
wherein the reservoir base is configured so that, when the reservoir base is rested on a flat surface with the reservoir lid in the open position, the overfill protection element is configured to allow excess water above the predetermined maximum volume of water to spill out via the egress path at the predetermined location if the predetermined maximum volume of water is exceeded.
 
18. A water reservoir for an apparatus for generating a humidified flow of pressurized breathable air for delivery to an entrance of the airways of a patient for respiratory therapy, the water reservoir comprising:
a reservoir base comprising side walls forming a cavity configured to hold a predetermined maximum volume of water to be used for humidification of the pressurized breathable air,
wherein the reservoir base further comprises a flange projecting inwardly from at least one of the side walls towards the cavity and forming at least a portion of an opening into the cavity, and wherein the reservoir base further comprises a lip along at least a portion of a free end of the flange,
wherein the lip extends substantially perpendicular to the flange;
a reservoir lid pivotally connected to the reservoir base to allow the water reservoir to be movable between an open position and a closed position, the reservoir lid comprising a first opening and a second opening; and
a seal configured to sealingly engage the reservoir lid and the reservoir base when the water reservoir is in the closed position,
wherein the seal is provided attached to the reservoir lid to move with the reservoir lid between the open position and the closed position,
wherein the flange forms a sealing surface configured and arranged to engage the seal when the reservoir lid is in the closed position, and
wherein the sealing surface and the seal are configured and arranged to disengage from one another when the reservoir lid is in the open position.