IP Library › Granted Patent US 12,201,780

Granted Patent B2

US 12,201,780 · App. 17/488,849 · Granted Jan 21, 2025

Humidifier reservoir

Inventors: Andrew Roderick Bath (Sydney, AU); Justin John Formica (Sydney, AU); Matthew Rolf Harrington (Gosford, AU); Joseph Samuel Ormrod (Sydney, AU); Luke Andrew Stanislas (Sydney, AU); Hargopal Verma (Sydney, AU)

A61M16/16 A61M16/021 A61M16/0683 A61M16/109 A61M2016/0039 A61M16/0066 A61M16/161 A61M2205/123 A61M2205/3368 A61M2205/42

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Quick Facts

Patent No.: US 12,201,780
App. No.: 17/488,849
Granted: Jan 21, 2025
Kind: B2

External Links

USPTO Patent Center↗ Full Patent PDF↗

Abstract

An apparatus for humidifying a flow of pressurised, breathable air includes varying a first pressure of the flow of breathable gas to vary a level of thermal engagement between the conductive portion of the reservoir and the heater plate, varying a height of the variable portion varies a level of thermal engagement between the conductive portion of the reservoir and the heater plate, use of a humidifier reservoir base component with a maximum water capacity substantially equal to the predetermined maximum volume of water of the humidifier reservoir or the use of intersecting inlet and outlet axes.

Claims (105)

1. An integrated respiratory pressure therapy (RPT) device and humidifier for pressurising and humidifying breathable air to treat a respiratory disorder in a patient, the RPT device comprising:

a blower configured to pressurise the breathable air;

a water reservoir dock;

a water reservoir configured to hold a volume of water to be used for humidification of the breathable air, the water reservoir being movable relative to the water reservoir dock between a secured state and an unsecured state, the water reservoir comprising a water reservoir base and a water reservoir lid connected to the water reservoir base; and

a spring configured to be resiliently compressed so that the water reservoir can be moved from the secured state to the unsecured state;

wherein the water reservoir is releasably connected to the water reservoir dock, the water reservoir base and/or the water reservoir lid being configured to move against the bias of the spring between the secured state and the unsecured state,

wherein the water reservoir includes a protrusion and the water reservoir dock includes a recess, and wherein, in the secured state when the water reservoir is sealingly engaged with and secured to the water reservoir dock, the protrusion is biased within the recess by the spring, and

wherein the water reservoir includes a surface that is exposed when the water reservoir is sealingly engaged with the water reservoir dock in the secured state and is configured to receive a downward force that compresses the spring in order to disengage the protrusion from the recess, thus achieving the unsecured state and allowing removal of the water reservoir from the water reservoir dock.

2. The integrated RPT device and humidifier of claim 1 ,

wherein the water reservoir lid and the water reservoir base are pivotably connected via a pair of joints positioned proximate a first end of the water reservoir, and

wherein the water reservoir comprises a latch to secure the water reservoir lid and the water reservoir base, the latch being positioned on the water reservoir proximate a second end that is opposite to the first end.

3. The integrated RPT device and humidifier of claim 1 , wherein the water reservoir base includes a conductor plate constructed from a heat conducting material and the water reservoir dock includes a heater plate, wherein when the water reservoir is connected to the water reservoir dock, the conductor plate thermally engages with the heater plate so as to allow transfer of heat from the heater plate to the conductor plate during operation of the heater plate.

4. The integrated RPT device and humidifier of claim 3 , wherein the water reservoir is configured so that, when the water reservoir is received in the water reservoir dock, (a) the spring helps to maintain engagement between the protrusion and the recess and secure the water reservoir in the water reservoir dock, and (b) the spring encourages thermal contact between the conductor plate of the water reservoir base and the heater plate of the water reservoir dock.

5. The integrated RPT device and humidifier of claim 1 , wherein, when the water reservoir is to be removed from the water reservoir dock, the water reservoir is configured so that downward pressing of the water reservoir lid compresses the spring, disengages the protrusion from the recess, and allows removal of the water reservoir from the water reservoir dock.

6. The integrated RPT device and humidifier of claim 1 , wherein the spring is compressible to allow relative movement between the water reservoir and the water reservoir dock.

7. The integrated RPT device and humidifier of claim 1 , wherein a height and/or shape of the water reservoir are dimensioned such that upon engaging the water reservoir with the water reservoir dock and applying the downward force to the top surface of the water reservoir, the spring is deflected.

8. The integrated RPT device and humidifier of claim 1 , wherein the spring does not seal between the water reservoir base and the water reservoir lid.

9. The integrated RPT device and humidifier of claim 1 , wherein the water reservoir includes a water reservoir inlet and a water reservoir outlet positioned on a common side wall of the water reservoir lid, and wherein the water reservoir is configured to slide relative to the water reservoir dock such that the water reservoir inlet and the water reservoir outlet, respectively, sealingly engage a dock inlet and a dock outlet of the water reservoir dock, and such that the protrusion engages with the recess.

10. The integrated RPT device and humidifier of claim 9 , wherein the water reservoir inlet is associated with a water reservoir inlet passage, and wherein the dock outlet directs pressurized air into the water reservoir inlet in a first longitudinal direction, and at least a portion of the water reservoir inlet passage redirects incoming pressurized air to a second direction that is angled relative to the first longitudinal direction.

11. The integrated RPT device and humidifier of claim 9 , further comprising an external housing that encloses the blower and includes an air delivery conduit outlet positioned along a rear side of the RPT device, the dock inlet and the dock outlet being positioned on a lateral side of the external housing.

12. The integrated RPT device and humidifier of claim 9 , wherein the water reservoir is configured to move relative to the water reservoir dock between the secured position and the unsecured position while the water reservoir inlet and the water reservoir outlet are sealingly engaged, respectively, with the dock inlet and the dock outlet of the water reservoir dock.

13. The integrated RPT device and humidifier of claim 1 , wherein the water reservoir dock is configured to receive the water reservoir by horizontally or vertically sliding the water reservoir.

14. The integrated RPT device and humidifier of claim 13 ,

wherein the water reservoir includes a pair of flanges,

wherein the water reservoir dock includes a pair of sliding rails, each of the pair of sliding rails including a surface that faces towards and is spaced from a surface of the water reservoir dock to define a receiving slot, and

wherein, when vertically sliding the water reservoir into place from above the water reservoir dock against the bias of the spring, each flange is positioned in a respective said receiving slot.

15. The integrated RPT device and humidifier of claim 14 , further comprising at least one lug positioned between at least one of the sliding rails and its corresponding shoulder.

16. The integrated RPT device and humidifier of claim 14 , wherein an entry end of each said slot is enlarged relative to a remainder of the slot.

17. The integrated RPT device and humidifier of claim 1 , wherein the water reservoir lid includes a pair of hubs, the water reservoir base including a pair of sockets to receive the pair of hubs and a support to engage a part of the water reservoir lid, when the water reservoir lid is opened to a fully open, upright position.

18. The integrated RPT device and humidifier of claim 1 , further comprising an elastomeric seal between the water reservoir lid and the water reservoir base.

19. The integrated RPT device and humidifier of claim 1 ,

wherein the water reservoir lid and the water reservoir base are pivotably connected via a pair of joints positioned proximate a first end of the water reservoir,

wherein the water reservoir base includes a conductor plate constructed from a heat conducting material and the water reservoir dock includes a heater plate, wherein when the water reservoir is connected to the water reservoir dock, the conductor plate thermally engages with the heater plate so as to allow transfer of heat from the heater plate to the conductor plate during operation of the heater plate,

wherein the water reservoir is configured so that, when the water reservoir is received in the water reservoir dock, (a) the spring helps to maintain engagement between the protrusion and the recess and secure the water reservoir in the water reservoir dock, and (b) the spring encourages thermal contact between the conductor plate of the water reservoir base and the heater plate of the water reservoir dock,

wherein, when the water reservoir is to be removed from the water reservoir dock, the water reservoir is configured so that downward pressing of the water reservoir lid compresses the spring, helps disengage the protrusion from the recess, and allows removal of the water reservoir from the water reservoir dock,

wherein the spring does not seal between the water reservoir base and the water reservoir lid,

wherein the water reservoir includes a water reservoir inlet and a water reservoir outlet positioned on a common side wall of the water reservoir lid, and wherein the water reservoir is configured to slide relative to the water reservoir dock such that the water reservoir inlet and the water reservoir outlet, respectively, engage an inlet dock seal and an outlet dock seal of the water reservoir dock, and such that the protrusion engages with the recess,

wherein the water reservoir inlet is associated with a water reservoir inlet passage,

wherein a dock outlet associated with the outlet dock seal directs pressurized air into the water reservoir inlet in a first longitudinal direction, and the water reservoir inlet passage redirects the incoming pressurized air to a second direction that is angled relative to the first longitudinal direction,

further comprising an external housing that encloses the blower and an air delivery conduit outlet positioned along a rear side of the RPT device, the inlet and outlet dock seals being positioned on a lateral side of the external housing,

wherein the water reservoir dock is configured to receive the water reservoir by horizontally or vertically sliding the water reservoir,

wherein the water reservoir includes a pair of flanges,

wherein the water reservoir dock includes a pair of sliding rails, each of the sliding rails including a surface that faces towards, and is spaced from, a surface of the water reservoir dock to define a receiving slot,

wherein, when vertically sliding the water reservoir into place from above the water reservoir dock against the bias of the spring, each flange is positioned in a respective said receiving slot,

wherein an entry end of each said slot is enlarged relative to a remainder of the slot, and

wherein the water reservoir lid includes a pair of hubs, the water reservoir base including a pair of sockets to receive the pair of hubs and a support to engage a part of the water reservoir lid, when the water reservoir lid is opened to a fully open, upright position.

20. The integrated RPT device and humidifier of claim 1 ,

wherein the water reservoir lid and the water reservoir base are pivotably connected via a pair of joints positioned proximate a first end of the water reservoir,

wherein the water reservoir base includes a conductor plate constructed from a heat conducting material, wherein when the water reservoir is connected to the water reservoir dock, the conductor plate thermally engages with a heater plate on the water reservoir dock so as to allow transfer of heat from the heater plate to the conductor plate during operation of the heater plate,

wherein, when the water reservoir is to be removed from the water reservoir dock, the water reservoir is configured so that downward pressing of the water reservoir lid compresses the spring, disengages the protrusion from the recess of the water reservoir dock, and allows removal of the water reservoir from the water reservoir dock,

wherein the water reservoir includes a water reservoir inlet and a water reservoir outlet positioned on a common side wall of the water reservoir lid, and wherein the water reservoir is configured to slide relative to the water reservoir dock such that the water reservoir inlet and the water reservoir outlet, respectively, sealingly engage a dock inlet and a dock outlet of the water reservoir dock, and such that the protrusion is received within the recess of the water reservoir dock,

wherein the water reservoir inlet is associated with a water reservoir inlet passage,

wherein the dock outlet is configured to direct pressurized air into the water reservoir inlet in a first longitudinal direction, and the water reservoir inlet passage redirects the incoming pressurized air to a second direction that is angled relative to the first longitudinal direction,

further comprising an external housing that encloses the blower and includes an air delivery conduit outlet positioned along a rear side of the RPT device, the dock inlet and the dock outlet being positioned on a lateral side of the external housing,

wherein the water reservoir dock is configured to receive the water reservoir by sliding the water reservoir,

wherein the water reservoir includes a pair of flanges,

wherein the water reservoir dock includes a pair of sliding rails, each of the sliding rails including a surface that faces towards and is spaced from a surface of the water reservoir dock to define a receiving slot,

wherein, when sliding the water reservoir into place on the water reservoir dock against the bias of the spring, each flange is positioned in a respective said receiving slot, and

21. The integrated RPT device and humidifier of claim 1 ,

wherein the water reservoir includes a water reservoir inlet and a water reservoir outlet,

wherein the water reservoir inlet and the water reservoir outlet are positioned on a common side wall of the water reservoir lid,

wherein the water reservoir inlet is associated with an inlet conduit having an interior end terminating within the water reservoir and the water reservoir outlet is associated with an outlet conduit having an interior end terminating within the water reservoir,

wherein a portion of the inlet conduit crosses or overlaps with a portion of the outlet conduit when the water reservoir is viewed from above, such that the portion of the inlet conduit and the portion of the outlet conduit are aligned in a common vertical plane,

wherein the inlet conduit passes below the outlet conduit, and

wherein the water reservoir inlet is positioned on the right side of the common side wall of the water reservoir as viewed from the common side wall, and the water reservoir outlet is positioned on the left side of the common side wall as viewed from the common side wall, and the interior end of the inlet conduit is positioned on the left side of the water reservoir as viewed from the common side wall, and the interior end of the outlet conduit is positioned on the right side of the water reservoir as viewed from the common side wall.

22. The integrated RPT device and humidifier of claim 21 , wherein the interior end of the inlet conduit has an opening contained in a horizontal plane, and the interior end of the outlet conduit has an opening contained in a vertical plane.

23. The integrated RPT device and humidifier of claim 1 , wherein the spring bias has to be overcome to disengage the protrusion from the recess and disengage the water reservoir from the water reservoir dock, to allow the removal of the water reservoir from the water reservoir dock.

24. The integrated RPT device and humidifier of claim 1 ,

wherein the water reservoir dock has a heater plate;

wherein the water reservoir has a conductor plate to engage the heater plate,

wherein, when the water reservoir is received in the water reservoir dock, the spring is positioned and configured to (a) maintain engagement between the protrusion and recess of the water reservoir dock to secure the water reservoir in the water reservoir dock, and (b) assist in establishing and/or maintaining thermal contact between the conductor plate of the water reservoir and the heater plate of the water reservoir dock.

25. The integrated RPT device and humidifier of claim 1 , wherein the water reservoir is configured to move between the secured position and the unsecured position while the water reservoir is sealingly engaged with the water reservoir dock.

26. An integrated respiratory pressure therapy (RPT) device and humidifier for pressurising and humidifying breathable air to treat a respiratory disorder in a patient, the RPT device comprising:

a blower configured to pressurise the breathable air;

a water reservoir dock having a heater plate;

a water reservoir configured to hold a volume of water to be used for humidification of the breathable air, the water reservoir having a conductor plate to engage the heater plate, the water reservoir being releasably connected to the water reservoir dock, wherein the water reservoir includes a retainer configured to lock the water reservoir to the water reservoir dock,

a spring, wherein, when the water reservoir is sealingly engaged with the water reservoir dock, the spring being positioned and configured to (a) maintain engagement between the retainer and the water reservoir dock to secure the water reservoir in the water reservoir dock, and (b) assist in establishing and/or maintaining thermal contact between the conductor plate of the water reservoir and the heater plate of the water reservoir dock.

27. The integrated RPT device and humidifier of claim 26 ,

wherein the water reservoir includes a water reservoir lid and a water reservoir base that are pivotably connected via a pair of joints positioned proximate a first end of the water reservoir,

wherein the water reservoir base includes the conductor plate, the conductor plate being constructed from a heat conducting material, wherein when the water reservoir is connected to the water reservoir dock, the conductor plate thermally engages with the heater plate so as to allow transfer of heat from the heater plate to the conductor plate during operation of the heater plate,

wherein, when the water reservoir is to be removed from the water reservoir dock, the water reservoir is configured so that downward pressing of the water reservoir lid compresses the spring, disengages the retainer from the water reservoir dock, and allows removal of the water reservoir from the water reservoir dock,

wherein the water reservoir includes a water reservoir inlet and a water reservoir outlet positioned on a common side wall of the water reservoir lid, and wherein the water reservoir is configured to slide relative to the water reservoir dock such that the water reservoir inlet and the water reservoir outlet, respectively, sealingly engage a dock inlet and a dock outlet of the water reservoir dock, and such that the retainer engages with the water reservoir dock,

wherein the water reservoir inlet is associated with a water reservoir inlet passage,

wherein the water reservoir dock is configured to receive the water reservoir by sliding the water reservoir,

wherein the water reservoir includes a pair of flanges,

wherein, when sliding the water reservoir into place on the water reservoir dock against the bias of the spring, each flange is positioned in a respective said receiving slot, and

28. The integrated RPT device and humidifier of claim 26 ,

wherein the water reservoir includes a water reservoir inlet and a water reservoir outlet,

wherein the water reservoir includes a water reservoir base and a water reservoir lid connected to the water reservoir base,

wherein the water reservoir inlet and the water reservoir outlet are positioned on a common side wall of the water reservoir lid,

wherein the inlet conduit passes below the outlet conduit,

wherein the interior end of the inlet conduit has an opening contained in a horizontal plane, and the interior end of the outlet conduit has an opening contained in a vertical plane.

29. The integrated RPT device and humidifier of claim 26 , wherein the spring bias has to be overcome to disengage the retainer and disengage the water reservoir from the water reservoir dock, to allow the removal of the water reservoir from the water reservoir dock.

30. The integrated RPT device and humidifier of claim 26 , wherein the retainer is configured to move between a locked position and an unlocked position relative to the water reservoir dock while the water reservoir is sealingly engaged with the water reservoir dock.

Assignments (2)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 29, 2021

From: HARRINGTON, MATTHEW ROLF; BATH, ANDREW RODERICK; FORMICA, JUSTIN JOHN; ORMROD, JOSEPH SAMUEL; STANISLAS, LUKE ANDREW; VERMA, HARGOPAL

To: RESMED LIMITED

Reel/Frame 057641/0159 →

CHANGE OF NAME Recorded Sep 29, 2021

From: RESMED LIMITED

To: RESMED PTY LTD

Reel/Frame 057678/0498 →

Priority Claims (1)

AU 2013900901 · Mar 15, 2013 · national

Continuity (4)

Continuation 17322947 · May 18, 2021

Continuation 15825166 · Nov 29, 2017

Continuation 14211346 · Mar 14, 2014

Related Publication 20220016380A1 · Jan 20, 2022

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