US 12,290,638 B2
Humidifier
Joseph Samuel Ormrod, Sydney (AU); Michael James Dent, Sydney (AU); and Wei Liang Lau, Sydney (AU)
Assigned to ResMed Pty Ltd, Bella Vista (AU)
Filed by ResMed Pty Ltd, Bella Vista (AU)
Filed on Jun. 24, 2021, as Appl. No. 17/357,021.
Application 17/357,021 is a continuation of application No. 15/974,758, filed on May 9, 2018, granted, now 11,052,217.
Claims priority of provisional application 62/507,384, filed on May 17, 2017.
Prior Publication US 2021/0316109 A1, Oct. 14, 2021
Int. Cl. A61M 16/16 (2006.01); A61M 16/00 (2006.01); A61M 16/06 (2006.01); A61M 16/08 (2006.01); A61M 16/10 (2006.01)
CPC A61M 16/16 (2013.01) [A61M 16/0066 (2013.01); A61M 16/026 (2017.08); A61M 16/06 (2013.01); A61M 16/0816 (2013.01); A61M 16/109 (2014.02); A61M 2016/0027 (2013.01); A61M 2016/0036 (2013.01); A61M 16/1095 (2014.02); A61M 16/164 (2014.02); A61M 2205/18 (2013.01); A61M 2205/3365 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/3382 (2013.01); A61M 2205/581 (2013.01); A61M 2205/582 (2013.01); A61M 2205/583 (2013.01); A61M 2206/14 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A medical treatment apparatus for providing a supply of pressurized breathable air to a patient in a positive pressure range suitable for treatment of a respiratory disorder, the medical treatment apparatus comprising:
a blower configured to pressurize the supply of pressurized breathable air in the positive pressure range;
a water reservoir including a cavity structured to hold a volume of water to humidify the supply of pressurized breathable air, the water reservoir including a heat conductive portion;
a water reservoir dock including a cavity configured and arranged to receive at least an end portion of the water reservoir in an operative position, the water reservoir dock including a heater plate adapted to thermally engage the heat conductive portion of the water reservoir in the operative position to allow thermal transfer of heat from the heater plate to the volume of water; and
an overlapping conduit arrangement configured and arranged to provide an inlet for a flow of pressurized breathable air entering the cavity of the water reservoir and an outlet for a flow of humidified, pressurized breathable air exiting the cavity of the water reservoir when the water reservoir is in the operative position,
wherein the overlapping conduit arrangement includes a first conduit and a second conduit, the first conduit configured and arranged to at least partially extend within the second conduit when the water reservoir is in the operative position,
wherein the first conduit includes an interior surface that forms an inlet flow path for the flow of pressurized breathable air entering the cavity of the water reservoir, and the first conduit includes an exterior surface that cooperates with an interior surface of the second conduit to form an outlet flow path for the flow of humidified, pressurized breathable air exiting the cavity of the water reservoir,
wherein the water reservoir further comprises a baffle plate configured and arranged to direct at least a portion of the air exiting the cavity of the water reservoir to the outlet,
wherein the water reservoir includes a bottom surface forming a bottom plane that is substantially horizontal when the water reservoir is in the operative position, and
wherein the baffle plate extends substantially parallel to the bottom plane.