Patent ID: 11883605
Assignee: RESMED PTY LTD
Field: Medical technology (Instruments)
Classification: CPC A  F  Y | IPC A  F

Claim 17:
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.