Cpap system

Patent metadata

Field	Value
Publication number	US-2022096783-A1
Application number	US-202117548874-A
Country	US
Kind code	A1
Filing date	Dec 13, 2021
Priority date	Apr 17, 2019
Publication date	Mar 31, 2022
Grant date	—

Abstract

An apparatus for humidifying a flow of breathable gas includes a water reservoir and a water reservoir dock forming a cavity structured and arranged to receive the water reservoir in an operative position. The water reservoir comprises a reservoir base including a cavity structured to hold a volume of water, the reservoir base including a main body and a thermally conductive portion provided to the main body. The thermally conductive portion comprises a combined layered arrangement including a metal plate and a thin film, the thin film comprising a non-metallic material and including a wall thickness of less than about 1 mm. The thin film is adapted to form at least a bottom interior surface of the water reservoir exposed to the volume of water, and the metal plate is adapted to form a bottom exterior surface of the water reservoir.

First claim

1 .- 20 . (canceled)

21 . A medical treatment apparatus for providing a supply of pressurized breathable gas to a patient in a pressure range suitable for treatment of a respiratory disorder, the apparatus comprising:
a flow generator configured to pressurize the supply of pressurized breathable gas in the pressure range; a humidifier configured to provide water vapor to humidify the supply of pressurized breathable gas; a water reservoir including a cavity structured to hold a volume of water, the water reservoir including a water reservoir inlet and a water reservoir outlet, the water reservoir inlet including an integrated water reservoir inlet seal; and a water reservoir dock structured and arranged to receive the water reservoir in an operative position, the dock including a dock outlet arranged to, in use, supply pressurized gas to the inlet of the water reservoir, and a dock inlet to, in use, receive the supply of breathable gas with added humidity from the water reservoir, the dock inlet including a dock inlet seal to sealingly engage with the water reservoir outlet only when the water reservoir is received in the dock.

22 . The medical treatment apparatus of claim 21 , wherein the dock outlet includes an aperture surrounded by a flat surface configured to sealingly engage the water reservoir inlet seal when the water reservoir is received in the dock.

23 . The medical treatment apparatus of claim 21 , wherein the water reservoir outlet includes an aperture surrounded by a flat surface that sealingly engages the dock inlet seal when the water reservoir is received in the water reservoir dock.

24 . The medical treatment apparatus of claim 21 , wherein each of the dock inlet seal and the water reservoir inlet seal includes a bellows that forms a face seal against a respective flat surface.

25 . The medical treatment apparatus of claim 21 , wherein the water reservoir includes a lid, a base and a water reservoir seal that seals between the lid and the base.

26 . The medical treatment apparatus of claim 21 , further comprising an air delivery tube configured to pass the flow of breathable gas that has been humidified in the water reservoir to a patient interface, wherein the dock inlet seal is permanently affixed to an intermediate component of a tubular form, the intermediate component further comprising an external tube connector to which the air delivery tube is removably connectable.

27 . The medical treatment apparatus of claim 25 , wherein the water reservoir inlet is integrally overmoulded on the lid.

28 . The medical treatment apparatus of claim 21 , wherein the water reservoir comprises a first material that is relatively rigid compared to a second material forming the water reservoir inlet seal.

29 . The medical treatment apparatus of claim 21 , wherein the dock inlet seal is removably attached to a rear wall forming the recess of the dock.

30 . The medical treatment apparatus of claim 21 , wherein the dock inlet seal is affixed to an intermediate component of a tubular shape, the intermediate component further comprising an external tube connector to which an air delivery tube is removably connectable.

31 . The medical treatment apparatus of claim 30 , wherein the intermediate component is removably attached to the dock.

32 . The medical treatment apparatus of claim 21 , further comprising a chassis supporting a blower of the flow generator, the chassis at least partly forming the dock such that the flow generator and the humidifier are integrated, the water reservoir dock including a recess, in which the water reservoir is at least partly received, the water reservoir being engaged with the dock by horizontally sliding the water reservoir at least partly into the recess of the dock.

33 . A medical treatment apparatus for providing a supply of pressurized breathable gas to a patient in a pressure range suitable for treatment of a respiratory disorder, the apparatus comprising:
a flow generator configured to pressurize the supply of pressurized breathable gas in the pressure range; a humidifier configured to provide water vapor to humidify the supply of pressurized breathable gas; a water reservoir including a cavity structured to hold a volume of water, the water reservoir including a water reservoir inlet and a water reservoir outlet; a water reservoir dock structured and arranged to at least partially receive the water reservoir in an operative position, the dock including a dock outlet arranged to, in use, supply the pressurized breathable gas to the inlet of the water reservoir, and a dock inlet to, in use, receive the supply of breathable gas with added humidity from the water reservoir outlet, a first seal between the dock outlet and the water reservoir inlet; and a second seal between the water reservoir outlet and the dock inlet; wherein at least one of the first seal and the second seal is supported solely by the water reservoir inlet or outlet.

34 . The medical treatment apparatus of claim 33 , wherein the water reservoir inlet includes the first seal, the water reservoir outlet does not have the second seal affixed thereto.

35 . The medical treatment apparatus of claim 33 , wherein the dock outlet includes an aperture surrounded by a flat surface configured to sealingly engage the first seal when the water reservoir is received in the dock, and wherein the water reservoir outlet includes an aperture surrounded by a flat surface that sealingly engages the second seal when the water reservoir is received in the dock.

36 . The medical treatment apparatus of claim 33 , wherein each of the first seal and the second seal includes a bellows that forms a face seal against the respective flat surfaces.

37 . The medical treatment apparatus of claim 33 , wherein the water reservoir includes a lid, a base and a water reservoir seal that seals between the lid and the base.

38 . The medical treatment apparatus of claim 37 , wherein the lid includes the water reservoir inlet and the first seal.

39 . The medical treatment apparatus of claim 33 , wherein the water reservoir comprises a first material that is relatively rigid compared to a second material forming the first seal that is overmolded to the first material.

40 . The medical treatment apparatus of claim 33 , wherein the second seal is removably attached to a rear wall forming the recess of the dock.

41 . The medical treatment apparatus of claim 33 , further comprising an air delivery tube configured to pass the flow of breathable gas that has been humidified in the water reservoir to a patient interface, wherein the second seal is permanently affixed to an intermediate component in a tubular form, the intermediate component further comprising an external tube connector to which the air delivery tube is removably connectable.

42 . The medical treatment apparatus of claim 41 , wherein the intermediate component is removably attached to the reservoir dock.

43 . The medical treatment apparatus of claim 33 , further comprising a chassis supporting a blower of the flow generator, the chassis at least partly forming the water reservoir dock such that the flow generator and the humidifier are integrated, the humidification dock including a recess in which the water reservoir is partly received, the water reservoir being engaged with the dock by horizontally sliding the water reservoir into the recess of the dock.

44 . A medic

Assignees

• ResMed Pty Ltd

Inventors

• Workman Jeremy William
• Tsai Ernie Wei-Chih
• Dent Michael James
• Kabilafkas Max William Andrew
• Maurer Dimitri Marco
• Chan Andrew
• Formica Justin John
• Verma Hargopal
• Krol-Mazur Katarzyna Anna
• Tan Chia Ik
• Maikim Jessie Cindy

Classifications

• A61M16/107

  in the inspiratory path · CPC title

• A61M16/024 Primary

  including calculation means, e.g. using a processor · CPC title

• A61M16/108

  before being humidified or mixed with a beneficial agent · CPC title

• A61M16/1085

  after being humidified or mixed with a beneficial agent · CPC title

• A61M2205/3653

  by Joule effect, i.e. electric resistance · CPC title