Cpap system

Patent metadata

Field	Value
Publication number	US-2022096784-A1
Application number	US-202117550378-A
Country	US
Kind code	A1
Filing date	Dec 14, 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 air to a patient in a positive pressure range suitable for treatment of a respiratory disorder, the apparatus comprising:
a flow generator configured to pressurize the supply of pressurized breathable air in the positive pressure range; a humidifier configured to provide water vapor to humidify the supply of pressurized breathable air; a water reservoir including a cavity structured to hold a volume of water, the water reservoir including a water reservoir base and a water reservoir lid; 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 air to the water reservoir, and a dock inlet to, in use, receive the supply of breathable air with added humidity from the water reservoir, the water reservoir dock including a forward ledge associated with a recessed slot; and a latch movably connected to the water reservoir lid to secure the water reservoir to the water reservoir dock in the operative position, the latch having a locking lever arranged to be manipulated by the patient's finger or thumb, a retaining protrusion to be received in the recessed slot behind the forward ledge, and lid connector attached to the water reservoir lid, wherein the locking lever is pivotable about the lid connector to enable the retaining protrusion to move between a locked position and an unlocked position.

22 . The medical treatment apparatus of claim 21 , wherein, when the water reservoir is received within the reservoir dock by horizontally sliding the water reservoir relative to the reservoir dock, the retaining protrusion raises to slide over the forward ledge and downward into the recessed slot, and the opposite end of the latch lowers at a time when the retaining protrusion raises.

23 . The medical treatment apparatus of claim 21 , wherein to remove the water reservoir from the reservoir dock, a finger/thumb surface is manually depressed to raise the retaining protrusion above the forward ledge, at which point the water reservoir is slidingly removable from the reservoir dock.

24 . The medical treatment apparatus of claim 21 , wherein the latch is a separate and distinct structure from the water reservoir, which is secured to the water reservoir.

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

26 . The medical treatment apparatus of claim 21 , wherein water reservoir lid is pivotably attached to the water reservoir base about a first pivot axis, and the locking lever is pivotable relative to the water reservoir lid about a second axis that is parallel to but offset from the first pivot axis.

27 . The medical treatment apparatus of claim 21 , wherein the water reservoir lid includes a recess including a pair of slots to receive a respective side of the lid connector.

28 . The medical treatment apparatus of claim 21 , wherein the latch includes a resilient member that resiliently biases the retaining protrusion to the locked position.

29 . The medical treatment apparatus of claim 21 , wherein the retaining protrusion includes a taper to facilitate engagement of the retaining protrusion into the recessed slot, and the retaining protrusion includes a flat surface to engage behind the forward ledge.

30 . The medical treatment apparatus of claim 23 , wherein the finger/thumb surface is manually depressible to pivot the locking lever, thus raising the retaining protrusion into the unlocked position, against the bias of a resilient member.

31 . The medical treatment apparatus of claim 30 , wherein the retaining protrusion is pivotable out of the recessed slot in an upwards direction, thus allowing the water reservoir to be removed from the reservoir dock.

32 . The medical treatment apparatus of claim 23 , wherein the finger/thumb surface includes a grip.

33 . 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 reservoir dock such that the flow generator and the humidifier are integrated, the 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.

34 . The medical treatment apparatus of claim 21 ,
wherein, when the water reservoir is received within the reservoir dock by horizontally sliding the water reservoir relative to the reservoir dock, the retaining protrusion raises to slide over the forward ledge and downward into the recessed slot, and a finger/thumb surface lowers at a time when the retaining protrusion raises, wherein to remove the water reservoir from the reservoir dock, the finger/thumb surface is depressed to raise the retaining protrusion above the forward ledge, at which point the water reservoir is slidingly removable from the reservoir dock.

35 . The medical treatment apparatus of claim 34 ,
wherein the water reservoir includes a water reservoir seal that seals between the water reservoir lid and the water reservoir base, wherein the water reservoir lid includes a recess including a pair of slots to receive a respective side of the lid connector, wherein the latch includes a resilient member that resiliently biases the retaining protrusion to the locked position, and wherein the retaining protrusion includes a taper to facilitate engagement of the retaining protrusion into the recessed slot, and the retaining protrusion includes a flat surface to engage behind the forward ledge.

36 . 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 apparatus comprising:
a flow generator configured to pressurize the supply of pressurized breathable air in the positive pressure range; a humidifier configured to provide water vapor to humidify the supply of pressurized breathable air; a water reservoir including a cavity structured to hold a volume of water, the water reservoir including a water reservoir base and a water reservoir lid that is pivotably connected to the water reservoir base at a first pivot location; 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 air to the water reservoir, and a dock inlet to, in use, receive the supply of breathable air with added humidity from the water reservoir, the water reservoir dock including a first retaining element; and a latch connected to the water reservoir lid to secure the water reservoir to the water reservoir dock in the operative position, the latch having a locking lever that is pivotably connected to the water reservoir lid at a second pivot location that is different than the first pivot location, the locking lever having a first portion end including a finger/thumb surface adapted to be manipulated by the patient's finger or thumb, and a second portion end, opposite to the first portion end, the second portion end having a second retaining element to be locked with the first retaining element when the reservoir dock receives the water reservoir in the operative position.

37 . The medical treatment apparatus of claim 36 , whe

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