Respiratory pressure treatment system

Patent metadata

Field	Value
Publication number	US-11759595-B2
Application number	US-202016853812-A
Country	US
Kind code	B2
Filing date	Apr 21, 2020
Priority date	Dec 17, 2013
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

A respiratory pressure therapy (RPT) device is disclosed for treatment of respiratory-related disorders. The RPT device includes a pressure generator, a pneumatic block, a chassis and a device outlet for delivering a supply of flow of gas to a patient interface. The RPT device also comprises an integrated humidifier including a water reservoir. An RPT device is also disclosed that includes a wireless data communication interface integrated with the housing and configured to connect to another device or a network.

First claim

The invention claimed is:

1. An apparatus for pressurising a flow of breathable air to treat a respiratory disorder in a patient, the apparatus comprising:
a chassis;
a pressure generator supported by the chassis and configured to pressurise the flow of breathable air above atmospheric pressure;
a water reservoir positioned and configured to receive the flow of pressurised, breathable air from the pressure generator, and the water reservoir being configured to retain water for humidification of the flow of pressurised, breathable air;
a heating element comprising a heat generating component configured to generate heat to heat water retained by the water reservoir; and
a heating element seal configured to seal the heat generating component from ingress of water.

2. The apparatus of claim 1 , wherein the heating element seal further comprises one or more resilient portions configured to urge the heating element toward the water reservoir.

3. The apparatus of claim 2 , wherein each of the resilient portions is a heating element cone.

4. The apparatus of claim 2 , further comprising a heating element base cover removably coupled to the chassis to retain the heating element against the chassis and to allow access to the heating element.

5. The apparatus of claim 4 , wherein the heating element base cover further comprises slots configured to receive corresponding ones of the resilient portions.

6. The apparatus of claim 1 , wherein the water reservoir further comprises a conductive portion configured to conduct heat from the heating element to water retained in the water reservoir.

7. The apparatus of claim 6 , wherein the conductive portion is a base conductor plate constructed from a heat conducting metal.

8. The apparatus of claim 7 , wherein the water reservoir further comprises a reservoir base configured to retain water, the base conductor plate forming at least part of the reservoir base.

9. The apparatus of claim 8 , wherein the reservoir base further comprises a base bottom plate, a base upper body, and a sealing element, and
wherein the sealing element is connected to the base bottom plate and the base upper body to seal the reservoir base and prevent egress of water from the water reservoir.

10. The apparatus of claim 1 , wherein the heating element seal is structured to seal around a periphery of the heating element.

11. The apparatus of claim 6 , wherein the heating element further comprises a heating element cover plate constructed from a heat conductive metal and configured to contact the conductive portion of the water reservoir.

12. The apparatus of claim 1 , wherein the heat generating component is an electrically resistive heating track.

13. The apparatus of claim 1 , wherein the heating element further comprises a cable configured to provide electrical power to the heat generating component, and
wherein the heating element seal further comprises a heating element cable port configured to allow the cable to pass through the heating element seal to connect to the heating element.

14. The apparatus of claim 13 , wherein the heating element seal is configured to sealingly engage around a periphery of the cable passing through the heating element cable port to prevent ingress of water into the heating element.

15. The apparatus of claim 1 , wherein the heating element seal is constructed from a resilient material.

16. The apparatus of claim 15 , wherein the resilient material is silicone.

17. The apparatus of claim 1 , further comprising an external housing mounted on the chassis, the chassis and the external housing forming a dock configured to removably receive the water reservoir.

18. The apparatus of claim 17 , wherein the water reservoir is configured to be translationally inserted and removed from the dock.

19. The apparatus of claim 18 , wherein the chassis further comprises a dock outlet and a dock inlet configured to pneumatically communicate with a water reservoir inlet and a water reservoir outlet, respectively.

20. The apparatus of claim 19 , wherein a first bellows type face seal is positioned between the dock outlet and the water reservoir inlet to seal pressurised, breathable air flowing from the dock outlet and the water reservoir inlet, and
wherein a second bellows type face seal is positioned between the dock inlet and the water reservoir outlet to seal humidified, pressurised, breathable air flowing from the water reservoir outlet to the dock inlet.

21. The apparatus of claim 1 , wherein the heating element is mounted on the chassis.

22. The apparatus of claim 1 , wherein the chassis further comprises an opening, the heating element being positioned within the opening.

23. The apparatus of claim 1 , wherein the heating element is configured to contact the water reservoir in use to conduct heat to water retained by the water reservoir.

24. The apparatus of claim 3 , wherein each of the heating element cones is configured to be compressed axially to urge the heating element toward the water reservoir.

25. The apparatus of claim 4 , wherein the heating element seal is positioned between the heating element and the heating element base cover.

26. The apparatus of claim 6 , wherein the heating element is configured to contact the conductive portion of the water reservoir to conduct heat from the heating element to water retained in the water reservoir.

27. The apparatus of claim 11 , wherein the heat generating component is positioned between heating element cover plate and the heating element seal.

28. The apparatus of claim 13 , wherein the chassis comprises a cavity, and
wherein the heating element cable port comprises a protrusion that extends from the heating element seal and is configured to be inserted into the cavity to locate the heating element seal relative to the chassis.

29. The apparatus of claim 1 , further comprising:
a heating element base cover removably coupled to the chassis to retain the heating element against the chassis and to allow access to the heating element; and
an external housing mounted on the chassis, the chassis and the external housing forming a dock configured to removably receive the water reservoir,
wherein:
the heating element seal further comprises one or more resilient portions configured to urge the heating element toward the water reservoir,
each of the resilient portions is a heating element cone,
the heating element base cover further comprises slots configured to receive corresponding ones of the resilient portions,
the water reservoir further comprises a conductive portion configured to conduct heat from the heating element to water retained in the water reservoir,
the conductive portion is a base conductor plate constructed from a heat conducting metal,
the water reservoir further comprises a reservoir base configured to retain water, the base conductor plate forming at least part of the reservoir base,
the reservoir base further comprises a base bottom plate, a base upper body, and a sealing element,
the sealing element is connected to the base bottom plate and the base upper body to seal the reservoir base and prevent egress of water from the water reservoir,
the heating element seal is structured to seal around a periphery of the heating element,
the heating element further comprises a heating element cover plate constructed from a heat c

Assignees

• ResMed Pty Ltd

Inventors

• Bath Andrew Roderick
• Bertinetti Mark
• Birchall Paul Frederick
• Chui Tommy Chung Yeung
• Churchill Dawn Rosemary
• Le Loc'H Clementine
• Formica Justin John
• Harrington Matthew Rolf
• Huby Ronald James
• Kapadia Jeegarkumar
• Kenyon Barton John
• Maurer Dimitri Marco
• Nasr Saad
• Ormrod Joseph Samuel
• Romagnoli Jose Ignacio
• Row Nathan John
• Smith Ian Malcolm
• Sparrow Robert John
• Stanislas Luke Andrew
• Tang Zhuo Ran
• Tsai Ernie Wei-Chih
• Verma Hargopal
• Zhu Chengwei

Classifications

• A61M16/16 Primary

  Devices to humidify the respiration air {(A61M16/1045 takes precedence)} · CPC title

• A61M16/109 Primary

  the humidifying liquid or the beneficial agent · CPC title

• A61M2205/14

  Detection of the presence or absence of a tube, a connector or a container in an apparatus · CPC title

• A61M2205/3584

  using modem, internet or Bluetooth® · CPC title

• A61M2205/3592

  using telemetric means, e.g. radio or optical transmission · CPC title