Granted Patent B2

US 12,226,584 · App. 18/361,444 · Granted Feb 18, 2025

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

Assignee: ResMed Pty Ltd

A61M16/109A61M16/0066A61M16/024A61M16/0683A61M16/0875A61M16/16A61M16/0063A61M16/1055A61M16/107A61M2205/14A61M2205/3584A61M2205/3592A61M2205/42A61M2205/50A61M2205/505A61M2205/7518A61M2209/08H01Q1/38H01Q1/48

Abstract

Claims (36)

1. A respiratory pressure therapy (RPT) device for pressurising air to treat a respiratory disorder in a patient, the RPT device comprising:

a water reservoir comprising a water reservoir lid and a water reservoir base pivotably connected to the water reservoir lid, the water reservoir base being configured to retain water for humidification of pressurised air;

a chassis comprising a dock configured to removably receive the water reservoir;

an RPT device inlet configured to receive ambient air;

an RPT device outlet configured to be connected to an air delivery conduit to direct pressurised air to a patient interface worn by the patient during use;

a blower assembly supported within the chassis and comprising:

a first wall portion and a second wall portion;

a blower assembly inlet tube positioned on the first wall portion and configured to receive air from the RPT device inlet;

a plurality of flow tubes positioned on the second wall portion;

a first chamber formed at least partly by the second wall portion;

a second chamber formed at least partly by the second wall portion and opposite the first chamber relative to the second wall portion;

a blower configured to pressurize the air, the blower having a blower inlet exposed to the second chamber and a blower outlet; and

a blower assembly outlet configured to direct pressurized air to the water reservoir; and

an external housing that encloses the blower assembly and at least partially encloses the water reservoir when removably received by the dock.

2. The RPT device of claim 1 , wherein the blower assembly inlet tube consists of a single tube.

3. The RPT device of claim 1 , wherein a flow path configured to pressurize air through the RPT device extends from the RPT device inlet, through the blower assembly inlet tube, through the first chamber, through the plurality of flow tubes, through the second chamber, into the blower through blower inlet, out of the blower through the blower outlet and into the water reservoir, and out of the water reservoir to the RPT device outlet.

4. The RPT device of claim 1 , wherein the second wall portion is a flow plate.

5. The RPT device of claim 1 , wherein the plurality of flow tubes comprises between 10 and 15 flow tubes.

6. The RPT device of claim 5 , wherein the plurality of flow tubes comprises 12 of the flow tubes.

7. The RPT device of claim 1 , wherein the plurality of flow tubes consists 12 of the flow tubes.

8. The RPT device of claim 1 , wherein the plurality of flow tubes extend into the first chamber.

9. The RPT device of claim 1 , wherein an internal diameter of each of the flow tubes is tapered along its length.

10. The RPT device of claim 9 , wherein the internal diameter of each of the flow tubes decreases from the first chamber to the second chamber.

11. The RPT device of claim 1 , wherein the blower outlet is not exposed to the first chamber or the second chamber.

12. The RPT device of claim 1 , further comprising an acoustic foam portion positioned within the second chamber such that air passes through the acoustic foam portion to reach the blower inlet.

13. The RPT device of claim 1 , further comprising a blower sleeve, the blower being positioned within the blower sleeve.

14. The RPT device of claim 13 , wherein the blower assembly outlet is formed on the blower sleeve.

15. The RPT device of claim 14 , wherein the blower sleeve is constructed from flexible, resilient material.

16. The RPT device of claim 1 , wherein the blower assembly further comprises a plurality of sensor ports.

17. The RPT device of claim 16 , wherein the first wall portion includes the plurality of sensor ports.

18. The RPT device of claim 17 , wherein the plurality of sensor ports are fluidly coupled to a flow transducer.

19. The RPT device of claim 1 , wherein the dock further comprises a dock inlet and a dock outlet,

wherein the water reservoir further comprises a water reservoir inlet configured to receive a flow of pressurized air from the dock outlet and a water reservoir outlet configured to direct the flow of pressurized air to the dock inlet, and

wherein a first face seal is positioned between the dock outlet and the water reservoir inlet to seal the flow of pressurized air from the dock outlet to the water reservoir inlet and a second face seal is positioned between the dock inlet and the water reservoir outlet to seal the flow of pressurized air from the dock inlet to the water reservoir outlet.

20. The RPT device of claim 1 , wherein the second wall portion further comprises a hole, the blower extending through the hole and being supported at least partially by the second wall portion.

21. The RPT device of claim 20 , wherein a portion of the blower is at least partially supported within the first chamber.

Assignments (4)

Priority Claims (5)

Continuity (4)

References Cited (328)