Humidification assembly and breathing ventilation apparatus

Abstract

A humidification assembly and a respiratory ventilation apparatus are provided. The humidification assembly is for humidifying pressurized breathing gas provided by a respiratory ventilation apparatus, the humidification assembly comprising a liquid chamber for containing one or more liquids, the liquid chamber comprising a tank, a tank lid, the tank lid comprising a first gas passage, a second gas passage, a humidification assembly gas inlet configured to introduce the pressurized breathing gas into the tank via the first gas passage, and a humidification assembly gas outlet configured to introduce humidified and pressurized breathing gas out of the tank via the second gas passage.

Description

[0001] This application is a divisional application of Chinese patent application No. 201880093168.8, filed on October 26, 2018. Technical Field

[0002] This application generally relates to the detection, diagnosis, treatment, prevention and improvement of respiratory-related conditions, and more specifically to humidification components and respiratory ventilation devices. Background Technology

[0003] Breathing is essential for sustaining life in an object (e.g., a human body). The object's respiratory system facilitates gas exchange. The object's nose and / or mouth form the entrance to its airway. A range of respiratory disorders exist (e.g., sleep apnea, hypoventilation, hyperventilation, snoring, etc.). These respiratory disorders can threaten the object's health (and / or life). Therefore, it is desirable to develop systems and methods for delivering respiratory gases to objects. Summary of the Invention

[0004] The purpose of this application is to provide a humidification component and a breathing ventilation device including the humidification component.

[0005] To achieve the above objectives, this application provides a humidification assembly configured to humidify pressurized breathing gas from a breathing ventilation device. The humidification assembly includes a liquid chamber configured to contain one or more liquids. The liquid chamber includes a housing, a cover, and a humidification assembly gas inlet. The humidification assembly gas inlet is configured to introduce pressurized breathing gas into the housing via a first gas channel, wherein the first gas channel includes an outlet.

[0006] In one embodiment, the liquid chamber of the humidification assembly further includes a humidification assembly gas outlet configured to return humidified and pressurized breathing gas to the body of the breathing ventilation device via a second gas passage, wherein the second gas passage includes an inlet.

[0007] In one embodiment, the liquid chamber of the humidification assembly includes a housing, wherein the humidification assembly gas inlet and / or the humidification assembly gas outlet of the liquid chamber are disposed on a first side surface of the housing of the liquid chamber, and wherein a first gas channel is used to connect the first gas channel and the outlet of the housing, and / or an inlet of a second gas channel for connecting the second gas channel and the housing is disposed inside the housing of the liquid chamber. In one embodiment, the housing includes an inner shell and a layered cover. This layered structure allows the housing to be easily disassembled and cleaned.

[0008] By forming the first and second gas channels in the outer shell of the liquid chamber, the housing can include a simple design with wider openings and volumes, which allows it to be held and filled more easily than water is filled through a single gas channel.

[0009] In one embodiment, the outlet of the first gas passage faces the second side surface of the housing of the liquid chamber, the inlet of the second gas passage faces the third side surface of the housing of the liquid chamber, and the second side surface of the housing of the liquid chamber is opposite to the third surface of the housing of the liquid chamber.

[0010] By separating the inlet and outlet, the airflow can travel a longer distance while exposed to the liquid in the chamber, thereby improving humidification efficiency.

[0011] In one embodiment, the liquid chamber includes a guide plate disposed on the upper edge of the outlet of the first gas channel, the guide plate being configured to guide pressurized breathing gas downwards into the housing.

[0012] In one embodiment, the first gas passage includes a first portion and a second portion, wherein the first portion of the first gas passage extends from the humidification component gas inlet of the liquid chamber to a first common plane, and wherein the second portion of the first gas passage extends from the first common plane to the outlet of the first gas passage. This shape of the gas passage reduces noise discharged from the liquid chamber through it.

[0013] Alternatively, according to one embodiment, the second gas passage includes a first portion and a second portion, wherein the first portion of the second gas passage extends from the inlet of the second gas passage to a second common plane, and wherein the second portion of the second gas passage extends from the second common plane to the humidification component gas outlet of the liquid chamber.

[0014] A compact design can be achieved by forming the first and second gas channels with a common plane.

[0015] Additionally or alternatively, the first and second gas channels have substantially rectangular cross-sections. Compared to a tubular cross-section, this rectangular cross-section can save dead space and / or increase the area of ​​the cross-section, thereby allowing for a more compact design and / or lower resistance to pressurized gas.

[0016] In one embodiment, the first gas channel and the second gas channel intersect each other; wherein the distance between the outlet and the gas inlet of the humidification component is greater than the distance between the outlet and the gas outlet of the humidification component.

[0017] Alternatively or additionally, the distance between the inlet and the gas outlet of the humidification component is greater than the distance between the inlet and the gas inlet of the humidification component.

[0018] By passing through the first and second gas channels, mechanical noise from the humidification component gas inlet of the main body of the breathing ventilation device, which connects to the first gas channel, and bubbling noise propagating within the housing and through the second gas channel, are reduced through a compact design that minimizes dead zones. Liquid within the housing is also less likely to reach the inlet and outlet.

[0019] In one embodiment, a first portion of the first gas passage is substantially parallel to a second portion of the second gas passage along a direction angled to a first side surface of the outer shell of the liquid chamber. Additionally or alternatively, according to one embodiment, the second portion of the first gas passage and the first portion of the second gas passage are disposed in different layers. Additionally or alternatively, according to one embodiment, a first projection of the second portion of the first gas passage onto a horizontal plane and a second projection of the first portion of the second gas passage onto that horizontal plane intersect or at least partially overlap.

[0020] In one embodiment, the second portion of the first gas passage is disposed below the first portion of the second gas passage, or the first portion of the second gas passage is disposed below the second portion of the first gas passage.

[0021] In one embodiment, the area of ​​the first cross-section of the first gas channel on the first common plane is equal to or less than half the area of ​​the gas inlet of the humidification component of the liquid chamber, and / or the area of ​​the second cross-section of the second gas channel on the second common plane is equal to or less than half the area of ​​the gas outlet of the humidification component of the liquid chamber.

[0022] In one embodiment, the liquid chamber further includes: a first inclined plate disposed between the first cross section and the humidification component gas inlet of the liquid chamber, the first inclined plate being configured to allow pressurized breathing gas to flow smoothly in a first gas channel; and a second inclined plate disposed between the second cross section and the humidification component gas outlet of the liquid chamber, the second inclined plate being configured to allow humidified and pressurized breathing gas to flow smoothly in a second gas channel.

[0023] In one embodiment, at least a portion of the bottom of the first gas channel is located below the lower edge of the humidification component gas inlet of the liquid chamber, and / or, at least a portion of the bottom of the second gas channel is located below the lower edge of the humidification component gas outlet of the lower liquid chamber.

[0024] The arrangement can prevent fluid (e.g., condensate) from being discharged from the gas passage and / or entering the gas outlet when the lid is closed, or reduce this risk.

[0025] In one embodiment, the outer casing is connected to and / or connectable to the housing and / or lid, and is pivotally arranged relative to the housing. Because the first and / or second gas passages are formed together with the outer casing, the structure of the housing can be formed in a very simple manner, thereby allowing for better cleaning and liquid filling.

[0026] In one embodiment, the lid is pivotally connected to the housing via a connecting mechanism; wherein at least a portion of the side of the first gas passage near the connecting mechanism is covered in the flow direction by the side edge of the humidification component gas inlet of the liquid chamber, and / or wherein at least a portion of the side of the second gas passage near the connecting mechanism is covered in the flow direction by the side edge of the humidification component gas outlet of the liquid chamber.

[0027] Once the lid is opened by pivoting it about the axis of rotation defined by the connecting mechanism, the side of the first and / or second gas passage closest to the connecting mechanism will shift to a lower position than the other sides of the first and second gas passages. By covering at least a portion of such sides, liquid flow or dripping from the first and / or second gas passages is prevented from damaging, for example, electronic components, or dripping onto, for example, surfaces where humidification components are placed.

[0028] In one embodiment, the lid is pivotally connected to the housing via the connecting mechanism, and the distance between the connecting mechanism and the gas outlet of the humidification component is less than the distance between the connecting mechanism and the gas inlet of the humidification component.

[0029] Due to the connecting mechanism and lever action, ports closer to the connecting mechanism (e.g., pivotable hinge connections) can have a tighter seal and / or smaller clearance tolerances than ports farther from the connecting mechanism. By arranging the humidifier gas outlet closer to the connecting mechanism, the seal of the humidifying gas flowing through the humidifier gas outlet is improved, which in some cases may be more critical than the seal of the undiluted gas entering the humidifier through the humidifier.

[0030] This application also provides a respiratory ventilation device configured to deliver respiratory gas to a patient interface. The respiratory ventilation device includes the aforementioned humidification assembly and further includes: a gas pressurization unit configured to generate pressurized respiratory gas by pressurizing the respiratory gas, the gas pressurization unit being located within the body of the respiratory ventilation device. The body of the respiratory ventilation device includes a housing having a first sidewall configured to discharge the pressurized respiratory gas; a main gas inlet for introducing respiratory gas into the respiratory ventilation device, the main gas inlet being disposed on a second sidewall of the housing of the body of the respiratory ventilation device; and a main gas outlet configured to discharge the humidified and pressurized respiratory gas into a breathing tube.

[0031] In one embodiment, the main gas outlet is disposed on the body of the breathing ventilation device.

[0032] In one embodiment, the main gas outlet is located on the liquid chamber.

[0033] In one embodiment, the first side surface of the outer shell of the liquid chamber faces the first side wall of the housing of the main body of the breathing ventilation device.

[0034] In one embodiment, the liquid chamber includes a housing and a lid, the lid being pivotally connected to the housing via a connecting mechanism having a rotation axis; wherein the housing includes an opening for filling at least one of the one or more liquids, wherein the opening is opened by opening the lid and / or closed by closing the lid; and wherein the humidification assembly and the body of the breathing ventilation device are fluidly connected by closing the lid and / or fluidly disconnected by opening the lid.

[0035] By using a pivotable lid, the main body and humidification assembly are fluidly connected to form a flow channel for pressurized gas and / or humidified and pressurized gas. The mechanical connection between the main body and the housing (typically filled with water) can be fluid-sealed, making the mechanical connection between the main body and the housing easier to operate while ensuring the fluid connection is airtight under pressure. Furthermore, the lever effect of the lid can be used to ensure the fluid connection is close to the pressurized gas on one hand, and easy to operate with minimal force on the other.

[0036] In some embodiments, the liquid chamber can be directly mounted on the body of the breathing ventilation device. The liquid chamber and the body of the breathing ventilation device are fluidly connected at least through a connection port that forms at least one flow channel between the body of the breathing ventilation device and the liquid chamber. The liquid chamber may include an openable lid. To fill the liquid chamber, the user only needs to open the lid and fill the liquid chamber. When filling the liquid, the fluid connection between the liquid chamber and the body can be disconnected. Therefore, the breathing ventilation device has a simplified structure and is easy to use.

[0037] In some embodiments, the main body of the breathing ventilation device may include a blower of the gas pressurization unit and / or a heating element configured to heat the liquid in the liquid chamber. The heating element may be mounted on a side surface of the main body. The heating element and the main body may be constructed as a single unit, or the heating element may be detachable from the main body.

[0038] In some embodiments, the housing and the lid can be locked when the lid is closed. In some embodiments, the liquid chamber and the heating element can be locked. In some embodiments, the lid may not be locked to the body, and the lid is secured to the body by a locking mechanism between the housing and the lid, and between the housing and the body. When the heating element is installed in the liquid chamber, the lid can be opened by unlocking it from the housing. Therefore, opening and closing the lid is convenient, as is fluid connection and disconnection between the lid and the body. It should be noted that any other locking mode between the housing and the lid can achieve the above functions without unlocking the liquid chamber from the body.

[0039] In some embodiments, the housing and the body are attached to each other by moving the housing relative to the body in an attachment direction, with the angle between the axis of rotation and the attachment direction being between 20° and 160°, or in some embodiments, the angle being between 45° and 135°, or in some other embodiments, the angle being between 60° and 120°; and / or wherein the housing and the body are unlocked to each other by moving the housing relative to the body in an unlocking direction, with the angle between the axis of rotation and the unlocking direction being between 20° and 160°, or in some embodiments, the angle being between 45° and 135°, or in some other embodiments, the angle being between 60° and 120°.

[0040] By arranging the axis of rotation relative to the attachment direction in the manner described above, the lid can be closed in a direction perpendicular to the axis of rotation and can have a component along the attachment direction. Therefore, closing the lid towards the box body also allows the box body to connect with the main body, thereby improving user comfort.

[0041] In some embodiments, the angle between the attachment direction and the unlocking direction is between -45° and 45°; in other embodiments, the angle is between -30° and 30°; and in still other embodiments, the angle is between -15° and 15°. In one embodiment, the attachment direction and the unlocking direction may be substantially in the same direction. This can be further combined with a rotation axis to allow the lid to open only in a direction substantially opposite to the unlocking direction, thus preventing the user from accidentally unlocking the case by opening the lid. This improves user comfort.

[0042] In some embodiments, the humidification assembly and the body of the breathing ventilation device are in fluid communication via at least one connection port to form at least one flow channel between the body of the breathing ventilation device and the liquid chamber; wherein the at least one connection port includes a gas inlet and a gas outlet; wherein the connection port includes an axial seal for fluid-tightly connecting the gas inlet and the gas outlet; wherein the inner surface of the axial seal member at least partially forms the flow channel, and wherein the axial seal member defines a sealing plane.

[0043] By using an axial sealing member, the sealing member generates less friction during connection and disconnection, for example, compared to a tapered connector that forms a radial seal, thereby improving user comfort and operational safety.

[0044] In some embodiments, the angle between the sealing plane and the liquid level in the liquid chamber is between -75° and 75°; in some other embodiments, the angle is between -30° and 30°; and in some other embodiments, the angle is between 15° and 65°; and / or the angle between the sealing plane and the attachment direction is between 15° and 165°; in some other embodiments, the angle is between 30° and 150°; and in some other embodiments, the angle is between 45° and 135°; and in still other embodiments, the angle is between 70° and 110°; and / or the angle between the liquid level and the unlocking direction is between 15° and 165°; in some other embodiments, the angle is between 30° and 150°; and in some other embodiments, the angle is between 45° and 135°; and in still other embodiments, the angle is between 70° and 110°.

[0045] By arranging the sealing plane relative to the liquid level (e.g., a horizontal plane) in the manner described, and / or by arranging the attachment direction relative to the liquid level in the manner described, the risk of liquid spillage during sealing, unlocking, and / or attachment is reduced. The liquid level is the designed level of liquid for normal use of the breathing ventilation device and humidification assembly.

[0046] In some embodiments, the inner surface of the axial sealing member at least partially forms the flow channel and / or the overlap between the gas inlet and gas outlet in the sealed state is less than 5 mm, such that the gas inlet can be disconnected from the gas outlet, and the gas inlet and gas outlet are not in contact; wherein the axial seal comprises one or more elastic materials with a Shore hardness of less than 70 (e.g., 20-70, 60, etc.) according to ASTM D2240 Typ A, wherein the axial seal is axially compressed by 10%-50% and / or 0.5-6 mm (e.g., 1-3 mm) in the sealed state compared to the unlocked state of the body and humidification assembly.

[0047] In some embodiments, the gas inlet includes an inlet orifice, and the gas outlet includes an outlet orifice, wherein the inlet orifice and the outlet orifice are formed of one or more materials having a higher hardness than the elastic material forming the axial sealing member.

[0048] In some embodiments, the axial sealing member is formed around the inlet hole and / or around the outlet hole.

[0049] In some embodiments, the inlet and outlet orifices are formed of a material with a higher hardness than the elastic material forming the axial sealing member, and the inlet and outlet orifices are spaced apart in the axial direction of the axial seal by the axial sealing member. In some embodiments, the inlet and outlet orifices are spaced apart by at least 1 mm in the axial direction of the axial sealing member in the sealed and attached state of the humidification assembly, and in some embodiments, at least 5 mm. By axially spaced the inlet and outlet orifices, not only is friction between the gas inlet and outlet minimized, but collisions between the materials forming the inlet and outlet orifices with higher hardness are also minimized, thereby reducing sudden noise during the assembly and / or disassembly of the breathing ventilation device. The relative movement between the humidification assembly and the body of the breathing ventilation device is also buffered by the axial sealing member shortly before the inlet and outlet orifices are connected, which further increases user comfort.

[0050] In some embodiments, the axial sealing member comprises a plurality of components made of one or more elastic materials and is configured such that dynamic friction exists only between these components during the engagement or disengagement of the humidification assembly.

[0051] In some embodiments, the axial sealing member includes a sealing lip projecting from at least one of an inlet orifice and an outlet orifice, wherein the sealing lip is inclined toward the center of the flow channel and configured to bend toward the center of the flow channel if it is pressurized and / or compressed by connecting the gas inlet and the gas outlet.

[0052] In some embodiments, the liquid chamber may include: a housing; and a lid, the lid being pivotally connected to the housing via a connecting mechanism; wherein the lid may be configured to be closed by pushing in the pushing direction and / or configured to be opened by pulling in a direction substantially opposite to the pushing direction. Since the lid can close in the same direction, a single pushing action can close the lid and simultaneously connect the liquid chamber to the housing, thereby increasing comfort. When the lid opens in the opposite direction, the chance of the user confusing opening the lid with removing the liquid chamber from the housing is minimized, thus preventing the user from accidentally opening the lid and pouring out liquid with the intention of disconnecting the humidification assembly.

[0053] In some embodiments, a method for operating a respiratory ventilation device may include: connecting the humidification assembly to the body of the respiratory ventilation device by pushing the liquid chamber in a pushing direction; and unlocking the humidification assembly from the body by pushing the liquid chamber substantially in the pushing direction.

[0054] In some embodiments, the liquid chamber may include: a housing; and a lid pivotally connected to the housing via a connecting mechanism; the method may further include: placing the humidifying assembly on the surface of the breathing ventilation device prior to the connecting step; the step of connecting the humidifying assembly may further include locking the lid to the housing by pushing the lid substantially along the pushing direction. Attached Figure Description

[0055] This application is further described with reference to exemplary embodiments. These exemplary embodiments are described in detail with reference to the accompanying drawings. The drawings are not drawn to scale. These embodiments are non-limiting exemplary embodiments, wherein the same reference numerals denote similar structures in several views of the drawings, and wherein:

[0056] Figure 1 Exemplary respiratory ventilation devices according to some embodiments of the present disclosure are shown;

[0057] Figure 2A and Figure 2B An exploded view of an exemplary liquid chamber according to some embodiments of the present disclosure is shown;

[0058] Figures 3A to 3DAn exemplary connection between the liquid chamber and the body of a respiratory ventilation device according to some embodiments of the present disclosure is shown;

[0059] Figure 4 Another exemplary connection between the liquid chamber and the body of a respiratory ventilation device according to some embodiments of the present disclosure is shown;

[0060] Figures 5A-5C An exemplary connection between the liquid chamber and the body of a respiratory ventilation device according to some embodiments of the present disclosure is shown;

[0061] Figure 6 This illustrates an exemplary connection between the connector and the connecting plate of the lid when the lid is closed, according to some embodiments of this disclosure;

[0062] Figure 7 An exemplary liquid chamber of a respiratory ventilation device according to some embodiments of the present disclosure is shown;

[0063] Figure 8A and Figure 8B An exemplary box lid according to some embodiments of the present disclosure is shown;

[0064] Figure 9 Exemplary cover shells according to some embodiments of this disclosure are shown;

[0065] Figure 10A and Figure 10B An exemplary inner shell of a box lid according to some embodiments of the present disclosure is shown;

[0066] Figure 11 An exemplary base plate of the inner shell of a box lid according to some embodiments of the present disclosure is shown;

[0067] Figure 12A and Figure 12B An exemplary internal structure of the inner shell of a box lid according to some embodiments of the present disclosure is shown. Detailed Implementation

[0068] These and other features of this application, as well as the operation and function of the related elements of the structure, and the economic efficiency of the combination and manufacture of the components, will become more apparent in light of the following description. All of these form part of this application with reference to the accompanying drawings. However, it should be clearly understood that the drawings are for illustration and description only and are not intended to limit the scope of this application. It should be understood that the drawings are not drawn to scale.

[0069] It should be understood that when a unit, engine, or module is referred to as "connected," "connected to," or "coupled to" another unit, engine, or module, it can be directly connected, and unless the context clearly indicates otherwise, there may be an intermediate unit, engine, or module that is connected to or coupled to another unit, engine, or module or communicates with it. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0070] In this application, the breathing gas may include natural air (or atmospheric air), purified air, oxygen, oxygen-enriched atmosphere, therapeutic drugs, pressurized air, humidified air, etc., or combinations thereof. In some embodiments, the respiratory ventilation device may be a non-invasive ventilator. The respiratory ventilation device may be configured to detect, diagnose, treat, prevent, and / or improve respiratory-related conditions in a subject.

[0071] In some embodiments, the breathing ventilation device can deliver pressurized breathing gas to an object (e.g., the object's nose and / or mouth). In some embodiments, the breathing ventilation device may include a gas inlet and a gas outlet. The gas inlet is configured to introduce breathing gas into the breathing ventilation device. In some embodiments, the breathing ventilation device can pressurize the breathing gas introduced through the gas inlet. In some embodiments, the gas outlet may be connected to a breathing tube. The gas outlet may be configured to expel the pressurized breathing gas. In some embodiments, the breathing tube may be connected to an object interface. Thus, the pressurized breathing gas generated by the breathing ventilation device can be expelled to the object via the breathing tube and the object interface.

[0072] In some implementations, the object can be a healthy person. In some embodiments, the object can be a patient. In some embodiments, the object interface can be configured to connect a breathing ventilation device to the object, for example, by providing a flow of breathing gas (e.g., air). In some embodiments, the object interface may include a gas channel for guiding the breathing gas. Object connection means may include a mask, tubing, etc.

[0073] Breathing ventilation equipment may include a gas pressurization and humidification (CPAP) unit, a humidification component, a gas filtration component, a noise reduction component, a detection module, a control module, and one or more peripheral devices.

[0074] A humidification assembly can be configured to humidify (pressurized) breathing gas. In some embodiments, the humidification assembly may include a liquid chamber and / or a heating device. The liquid chamber may be configured to contain one or more liquids (e.g., water). The heating device may be configured to heat one or more liquids contained in the liquid chamber and / or generate water vapor at a temperature range of, for example, 30-50 degrees Celsius. In some embodiments, the liquid chamber may include a housing and / or a housing cover. The housing may be configured to contain one or more liquids. The housing cover may be configured to introduce (pressurized) breathing gas onto the surface of one or more liquids, and / or to introduce humidified (pressurized) breathing gas into the liquid chamber. In some embodiments, the housing cover may include a housing, a gas inlet, and a gas outlet, the gas inlet being configured to introduce (pressurized) breathing gas into the liquid chamber via a first gas passage, and / or the gas outlet being configured to return the humidified (pressurized) breathing gas to the breathing ventilation device via a second gas passage.

[0075] Figure 1 Exemplary respiratory ventilation devices according to some embodiments of the present disclosure are illustrated. The respiratory ventilation device 1700 may include a body 1702 and / or a humidification assembly. In some embodiments, the heating assembly may be configured to humidify the pressurized respiratory gas to produce pressurized and humidified respiratory gas. In some embodiments, the humidification assembly may include a liquid chamber 1704, a heating plate 1710, and a heat-conducting plate 1810 (see [link to relevant documentation]). Figure 2A and 2B The liquid chamber 1704 may be configured to contain one or more liquids (e.g., water and / or a drug). A heat-conducting plate may be configured to conduct heat from the heating plate 1710 to heat the one or more liquids and generate vapor to humidify pressurized breathing gases. In some embodiments, the heat-conducting plate may be disposed at the bottom of the liquid chamber 1704. In some embodiments, the heat-conducting plate may comprise a metallic thermally conductive material.

[0076] In some embodiments, the body 1702 may include a gas pressurization unit located within the body 1702. Figure 1(Not shown in the diagram) Gas inlet 1706, gas outlet 1708, and / or support plate 1707. In some embodiments, gas inlet 1706 and / or gas outlet 1708 may be disposed at a first interface between the body 1702 and the liquid chamber 1704. In some embodiments, support plate 1707 may be disposed at a second interface between the body 1702 and the liquid chamber 1704. In some embodiments, support plate 1707 may be fixed to a base plate of body 1702. In some embodiments, the first interface between body 1702 and liquid chamber 1704 may refer to the side surface of body 1702 and the corresponding side surface of liquid chamber 1704. In some embodiments, the second interface between body 1702 and liquid chamber 1704 may refer to the bottom surface of liquid chamber 1704 and the corresponding surface of support plate 1707 of body 1702. In some embodiments, gas outlet 1708 may be configured to discharge pressurized breathing gas from body 1702 into liquid chamber 1704. In some embodiments, the gas inlet 1706 may be configured to guide pressurized and humidified breathing gas from the liquid chamber 1704 back into the body 1702. In some embodiments, the support plate 1707 may include a first hole 1709 and / or a second hole 1711. In some embodiments, the first hole 1709 and / or the second hole 1711 may be located on a second interface. In some embodiments, at least a portion of the heating plate 1710 may be located in the second hole 1711.

[0077] In some embodiments, the liquid chamber 1704 may be detachably connected to the body 1702, such that the humidification assembly may be detachably connected to the body 1702.

[0078] Figure 2A and 2B An exploded view of an exemplary liquid chamber according to some embodiments of the present disclosure is shown. In some embodiments, such as Figure 2A and 2B As shown, the liquid chamber 1704 may include a lid and a body. In some embodiments, the lid may include a cover 1802 and one or more gas passages 1805. In some embodiments, the body may include a shell 1808, a heat-conducting plate sealing gasket 1809, and a heat-conducting plate 1810. It should be noted that in some embodiments, the gas passages 1805 may be disposed within the chamber. In some embodiments, the liquid chamber 1704 may include a retaining gasket 1806 and / or a lid sealing gasket 1807 located between the body and the lid. The retaining gasket 1806 and / or the lid sealing gasket 1807 may be configured to achieve a sealing connection between the body and the lid. In some embodiments, the liquid chamber 1704 may include a connecting plate 1803 and / or a gas passage sealing gasket 1804 to mate with the body 1702.

[0079] In some embodiments, the components of the liquid chamber 1704 may be detachably connected. For example, the connecting plate 1803 may be disposed and / or fixed to the cover 1802 by bonding, riveting, tenoning, clamping, engaging, or any combination thereof. As another example, the gas passage sealing gasket 1804 may be connected and / or fixed to the gas passage 1805. As another example, the retaining gasket 1806 and / or the cover sealing gasket 1807 may be disposed and / or fixed to the housing 1808 to improve the airtightness between the cover 1802 and the housing 1808. In some embodiments, the retaining gasket 1806 may be disposed within the cover sealing gasket 1807. As another example, the heat-conducting plate sealing gasket 1809 may be disposed between the heat-conducting plate 1810 and the bottom frame of the housing 1808. As yet another example, the heat-conducting plate 1810 may be connected to the heat-conducting plate sealing gasket 1809 by bonding, riveting, tenoning, clamping, engaging, or any combination thereof. As yet another example, the heat-conducting plate sealing gasket 1809 can be fixed to the bottom frame of the tank shell 1808 by bonding, riveting, tenoning, clamping, engaging, or any combination thereof.

[0080] Figures 3A-3D Exemplary connections between a liquid chamber and the body of a respiratory ventilation device according to some embodiments of the present disclosure are illustrated. Connector 2301 may be configured to provide a sealing connection between the cover 2302 and the body of the respiratory ventilation device, thereby ensuring the airtightness of pressurized breathing gas flowing between the liquid chamber 2303 and the body of the respiratory ventilation device. In some embodiments, connector 2301 may be fixed to the body of the respiratory ventilation device. In some embodiments, connector 2301 may be detachably connected to the body of the respiratory ventilation device. In some embodiments, the housing of the body of the respiratory ventilation device may include space for receiving connector 2301. In some embodiments, connector 2301 and the body may be an integral piece. In some embodiments, connector 2301 may provide a sealing connection between the cover 2302 and the body of the respiratory ventilation device if the liquid chamber 2303 is fixed to a support plate of the body of the respiratory ventilation device and the cover 2302 is closed to the housing of the liquid chamber 2303. In some embodiments, connector 2301 may be fixed or mounted on the cover 2302. In some embodiments, the connector 2301 may be detachably connected to the cover 2302. In some embodiments, the cover 2302 may include space for mounting the connector 2301. In some embodiments, the connector 2301 and the cover 2302 may be an integral piece.

[0081] like Figure 3BAs shown, connector 2301 may include support frame 2304 and / or gasket 2305. Support frame 2304 may be configured to support gasket 2305 and / or facilitate gasket 2305's attachment to the body of the breathing ventilation device. In some embodiments, gasket 2305 may include an inclined surface. In some embodiments, the inclined surface of connector 2301 (or gasket 2305) may have an angle with respect to a horizontal plane. In some embodiments, the angle may be substantially within 0 to 90 degrees (e.g., within 30 to 60 degrees). Gasket 2305 may be configured to form a sealing connection between cover 2302 and the body of the breathing ventilation device. In some embodiments, gasket 2305 may include a first hole 2306 and / or a second hole 2307 disposed on the inclined surface. In some embodiments, support frame 2304 may include at least one gas flow channel connected to the first hole 2306 and / or the second hole 2307. Each of the at least one gas flow channel can be connected to one or more gas channels of the main body of the breathing ventilation device. In some embodiments, the edge of the first hole 2306 can form a first protrusion structure 2311. In some embodiments, the edge of the second hole 2307 may include a second protrusion structure 2312. The first protrusion structure 2311 and / or the second protrusion structure 2312 can protrude to the cover 2302. The first protrusion structure 2311 and / or the second protrusion structure 2312 can facilitate a sealing connection between the connector 2301 and the cover 2302. In some embodiments, the cross-section of the first protrusion structure 2311 and / or the second protrusion structure 2312 can have a C-shape, S-shape, O-shape, V-shape, M-shape, N-shape, Z-shape, U-shape, or one or more folds, or combinations thereof. In some embodiments, the first protrusion structure 2311 and / or the second protrusion structure 2312 can be made of a soft material (e.g., silicone, soft rubber, or any combination thereof). In some embodiments, the first protruding structure 2311 and / or the second protruding structure 2312 may be made of the same material as the washer 2305. In some embodiments, the first protruding structure 2311 and / or the second protruding structure 2312 may be made of a different material than the washer 2305. In some embodiments, the thickness of the first protruding structure 2311 and / or the second protruding structure 2312 may be less than the thickness of the washer 2305.

[0082] In some embodiments, the gasket 2305 may be secured to the body of the respiratory ventilation device (e.g., the support frame 2304 of the connector 2301). In some embodiments, the gasket 2305 may be detachably connected to the body of the respiratory ventilation device (e.g., the support frame 2304 of the connector 2301) by means of, for example, adhesive bonding, bolting, or a combination thereof. In some embodiments, the gasket 2305 may be made of an elastic material, including, for example, an elastomer, rubber (e.g., silicone resin), or a combination thereof. In some embodiments, the gasket 2305 may include a protruding edge located at the interface between the support frame 2304 and the gasket 2305. The protruding edge of the gasket 2305 facilitates a sealing connection between the connector 2301 and the body of the respiratory ventilation device.

[0083] As shown in the figure, the inclined surface of the gasket 2305 can face the corresponding inclined surface of the connecting plate 2308 of the cover 2302. The cover 2302 may include a gas inlet 2309 and a gas outlet 2310. A first hole 2306 located on the inclined surface of the gasket 2305 may correspond to the gas inlet 2309 of the cover 2302, and a second hole 2307 located on the inclined surface of the gasket 2305 may correspond to the gas outlet 2310 of the cover 2302. In some embodiments, if the liquid chamber 2303 is fixed to the support plate of the main body of the breathing ventilation device, and the cover 2302 is closed to the housing of the liquid chamber 2303, the cover 2302 can be sealed to the main body of the breathing ventilation device through the gasket 2305. The first hole 2306 of the gasket 2305 and the gas inlet 2309 of the cover 2302 can introduce pressurized breathing gas from the main body of the breathing ventilation device into the liquid chamber 2303. The second hole 2307 of gasket 2305 and the gas outlet 2310 of cover 2302 can guide humidified and pressurized breathing gas from liquid chamber 2303 back into the main body of the breathing ventilation device.

[0084] like Figure 3D As shown, if the cover 2302 is closed, the first protruding structure 2311 can be squeezed and deformed, and then can form a closed-line contact with the connecting plate 2308 of the cover 2302 (e.g., around the edge of the gas inlet 2309 and / or the gas outlet 2310). Therefore, the airtightness of the breathing gas flowing between the body of the breathing ventilation device and the liquid chamber 2303 can be ensured.

[0085] Figure 4 Another exemplary connection between a liquid chamber and the body of a breathing ventilation device according to some embodiments of this disclosure is shown. Figure 4As shown, the liquid chamber 2403 may include a housing 2401 and a lid 2402. A connector 2301 may be configured to provide a sealed connection between a portion of the housing 2401 and the body of the breathing ventilation device. In some embodiments, the connector 2301 may not directly contact the lid 2402. Therefore, the state of the lid 2402 (open or closed) may not affect the connection between the connector 2301 and the housing 2401. In some embodiments, the lid 2402 can be opened via a handle 2404. The handle 2404 may have one or more notches that facilitate operation. In some embodiments, the lid 2402 may be a sliding cover. In some embodiments, the lid 2402 may slide horizontally or at an angle relative to the horizontal (e.g., 10 degrees, 20 degrees, 30 degrees, etc.). In some embodiments, in order to ensure a sealed connection between the housing 2401 and the cover 2402, the junction 2405 of the housing 2401 and the cover 2402 may be equipped with a sealing material (or elastic material) including, for example, silicone resin.

[0086] Figures 5A-5C An exemplary connection between the body and liquid chamber of a respiratory ventilation device according to some embodiments of the present disclosure is illustrated. A connector 2601 may be configured to provide a sealing connection between a cover 2603 and the body 2602 of the respiratory ventilation device. In some embodiments, the connector 2601 may include a first threaded hose 2601a and / or a second threaded hose 2601b. A hollow hole in the first threaded hose 2601a may form a gas outlet for the body 2602. A hollow hole in the second threaded hose 2601b may form a gas inlet for the body 2602. In some embodiments, the first threaded hose 2601a and / or the second threaded hose 2601b may be made of an elastic material, including, for example, an elastomer, rubber (e.g., silicone), or combinations thereof.

[0087] In some embodiments, the cover 2603 of the liquid chamber may include a connecting plate 2606 equipped with a gas inlet 2604 and / or a gas outlet 2605 of the cover 2603. The gas outlet of the body 2602 may correspond to the gas inlet 2604 of the cover 2603. The gas inlet of the body 2602 may correspond to the gas outlet 2605 of the cover 2603. In some embodiments, such as Figure 5A As shown, the hollow holes of the first threaded hose 2601a and the second threaded hose 2601b of the connector 2601 can be arranged substantially vertically at the first interface between the main body 2602 of the breathing ventilation device and the liquid chamber. Correspondingly, the connecting plate 2606 can be arranged substantially horizontally on the cover 2603. Therefore, if the cover 2603 is closed, a sealed connection can be formed between the main body 2602 of the breathing ventilation device and the liquid chamber through the connector 2601.

[0088] Figure 6 An exemplary connection between connector 2601 and connecting plate 2606 of lid 2603 when the lid 2603 is closed, according to some embodiments of the present disclosure, is shown. Figure 6 As shown, if the cover 2603 is closed, the connector 2601 can be connected to the connecting plate 2606 of the cover 2603 and can form a closed-line contact with the connecting plate 2606, which can ensure the airtightness of the pressurized breathing gas flowing between the liquid chamber and the main body of the breathing ventilation device.

[0089] Figure 7 An exemplary liquid chamber of a respiratory ventilation device according to some embodiments of the present disclosure is shown. Figure 7 As shown, the liquid chamber 3000 may include a housing 3002 and a cover 3004. In some embodiments, the cover 3004 may be pivotally connected to the housing 3002 via a connecting mechanism. In some embodiments, the liquid chamber 3000 may be opened from the front surface of the breathing ventilation device.

[0090] The housing 3002 may be configured to contain one or more liquids (e.g., water and / or medications). In some embodiments, the housing 3002 may include an opening for filling at least one of the one or more liquids. In some embodiments, the opening is openable by opening the lid 3004 and / or closed by closing the lid 3004. In some embodiments, the humidification assembly and the main body of the breathing ventilation device are fluidly connected by closing the lid 3004 and / or fluidly disconnected by opening the lid 3004. In some embodiments, the housing 3002 and the main body may be connected to each other by moving the housing 3002 relative to the main body along an attachment direction, the angle between the axis of rotation and the attachment direction being between 20° and 160°. In some embodiments, the housing 3002 and the main body may be unlocked to each other by moving the housing 3002 relative to the main body along an unlocking direction, the angle between the axis of rotation and the unlocking direction being between 20° and 160°. In some embodiments, the angle between the attachment direction and the unlocking direction can be between -45° and 45°.

[0091] In some embodiments, the humidification assembly and the body of the breathing ventilation device can be fluidly connected via at least one connection port for forming at least one flow channel between the body of the breathing ventilation device and the liquid chamber 3000. In some embodiments, the at least one connection port (e.g., connector 2301) may include a gas inlet (e.g., second hole 2307) and a gas outlet (e.g., first hole 2306). In some embodiments, the connection port (e.g., connector 2301) may include an axial seal (e.g., first protrusion 2311 and / or second protrusion 2312) for fluid-tightly connecting the gas inlet 3102 and the gas outlet 3104. In some embodiments, the inner surface of the axial seal may at least partially form the flow channel. In some embodiments, the axial seal may define a sealing plane. In some embodiments, the angle between the sealing plane and the liquid level within the liquid chamber 3000 may be between -75° and 75° (e.g., -30° to 30°). In some embodiments, the angle between the sealing plane and the attachment direction may be between 15° and 65°. In some embodiments, the angle between the liquid level and the attachment direction and / or the unlocking direction can be between 45° and 135°.

[0092] The shape of the housing 3002 may include a cube, cuboid, or irregular shape that can mate with the body of the breathing ventilation device. The housing 3002 may be transparent, opaque, or translucent. In some embodiments, the housing 3002 may include one or more markings for indicating the level (e.g., water level) of one or more liquids within the housing 3002. For example, the housing 3002 may include a first adhesive marking on a side surface indicating a minimum permissible liquid level and / or a second adhesive marking on a side surface indicating a maximum permissible liquid level. As another example, the housing 3002 may include a float (e.g., a colored buoy) floating within the housing 3002 on one or more liquids. In some embodiments, the housing 3002 may be equipped with a sensor for detecting the level of one or more liquids.

[0093] In some embodiments, the shape of the lid 3004 may be similar to or different from the shape of the body 3002. The shape of the lid 3004 may include a cube, cuboid, or irregular shape that can mate with the body of the breathing ventilation device. The material of the lid 3004 may be similar to or different from the material of the body 3002. The lid 3004 may be transparent, opaque, or translucent.

[0094] In some embodiments, the lid 3004 may include a handle 3006 and one or more buckles (e.g., a first buckle 3008a and / or a second buckle 3008b) located on the rear side of the handle 3006. The handle 3006 may be configured to facilitate opening and / or closing of the lid 3004. The case body 3002 may include one or more recesses (e.g., a first recess 3010a or a second recess 3010b) located opposite the handle 3006 (particularly corresponding to the locations of one or more buckles on the handle). When the lid 3004 is closed, the lid 3004 may be secured to the case body 3002 by the engagement of one or more buckles and one or more recesses. In some embodiments, the first recess 3010a and / or the second recess 3010b may be equipped with a crossbar. In some embodiments, the first buckle 3008a and / or the second buckle 3008b can be fastened by the transverse bar, so that the lid 3004 can be fastened to the box body 3002.

[0095] In some embodiments, the lid 3004 may be rotatably connected to the housing 3002 via a connecting mechanism 3009. In some embodiments, the lid 3004 may be provided with a connecting mechanism 3009 having a rotation axis that is pivotally connected to the housing 3002.

[0096] Figure 8A and 8B Exemplary box lids according to some embodiments of the present disclosure are shown. In some embodiments, such as Figure 8A and 8B As shown, the cover 3700 may include a cover shell 3710, a connecting plate 3720, an inner shell 3730, a gas channel sealing frame 3740, a base plate 3750, a fixing frame 3760, and a cover sealing frame 3770. In some embodiments, the connecting plate 3720 may include a first hole 3721 and a second hole 3722. In some embodiments, the first hole 3721 may be a gas inlet (also referring to the humidification component gas inlet) of the cover 3700. In some embodiments, the second hole 3722 may be a gas outlet (also referring to the humidification component gas outlet) of the cover 3700. In some embodiments, the connecting plate 3720 may be obliquely disposed outside the cover shell 3710.

[0097] Figure 9 Exemplary cover shells according to some embodiments of the present disclosure are shown. In some embodiments, such as Figure 9As shown, the cover 3710 may include a first hole 3711, a second hole 3712, a connecting frame 3713, a baffle 3714, one or more first latches 3715, and one or more second latches 3716. The first hole 3711 and the first hole 3721 of the connecting plate 3720 can serve as a gas inlet for the cover 3700. The second hole 3712 and the second hole 3722 of the connecting plate 3720 can serve as a gas outlet for the cover 3700. The connecting plate 3720 can be connected (e.g., fixed) to the connecting frame 3713. In some embodiments, the connecting plate 3720 can be connected to the connecting frame 3713 by adhesive, riveting, tenoning, clamping, engagement, or any combination thereof. The baffle 3714 can be used to separate the gas inlet and gas outlet of the cover 3700 between the cover 3710 and the connecting plate 3720, so that the breathing gas flowing into the cover 3700 can be isolated from the breathing gas flowing out of the cover 3700.

[0098] In some embodiments, a sealing strip (not shown) can be used to improve the airtightness of the connection between the connecting frame 3713 and the connecting plate 3720. For example, all joints between the connecting frame 3713 and the connecting plate 3720 can be equipped with a sealing strip. In some embodiments, a sealing strip (not shown) can be provided at the joint between the baffle 3714 and the connecting plate 3720. In some embodiments, such as Figure 8A As shown, a first groove 37215 and / or a second groove 37225 can be provided between the cover 3710 and the connecting plate 3720. The first groove 37215 and / or the second groove 37225 can be used to contain a portion of the liquid leaking from the housing and prevent the liquid from entering the body of the breathing ventilation device.

[0099] In some embodiments, the cover 3710 may be connected to and / or is capable of being connected to the housing and / or the lid 3700. In some embodiments, the cover 3710 may be pivotally disposed relative to the housing. In some embodiments, the liquid contact sidewall of the liquid chamber may be formed at least partially through the outer sidewall of the housing forming the outer surface of the humidification assembly. In some embodiments, the housing may have only one opening for filling liquid and / or for replacing pressurized breathing gas. In some embodiments, the lid 3700 may be pivotally connected to the housing via a connecting mechanism. In some embodiments, at least a portion of the side of the first gas passage near the connecting mechanism may be covered by the side edge of the humidification assembly gas inlet of the liquid chamber along the flow direction. In some embodiments, at least a portion of the side of the second gas passage near the connecting mechanism may be covered by the side edge of the humidification assembly gas outlet of the liquid chamber along the flow direction. In some embodiments, the distance between the connecting mechanism and the humidification assembly gas outlet may be less than the distance between the connecting mechanism and the humidification assembly gas inlet.

[0100] Figure 10A and 10B An exemplary inner shell of a box lid according to some embodiments of the present disclosure is shown. In some embodiments, such as Figure 10A and 10B As shown, the inner housing 3730 may include a gas inlet 3731 and / or a gas outlet 3732. In some embodiments, the gas inlet 3731 may be used via a first gas passage (e.g., as shown in the image). Figure 10A The gas passage indicated by the arrow shown introduces gas (e.g., pressurized breathing gas) into the liquid chamber. Figure 10AAs shown, the first gas passage (also referred to as the gas inlet passage) may include an outlet 3733. In some embodiments, the outlet 3733 of the first gas passage may be used to connect the first gas passage to the housing. Gas can flow out of the first gas passage through the outlet 3733 and into the liquid chamber. In some embodiments, the inner shell 3730 may include a guide plate 3734. In some embodiments, the guide plate 3734 may be disposed on the edge of the outlet 3733 of the first gas passage. In some embodiments, the guide plate 3734 may be disposed on the upper edge and / or side edge of the outlet 3733 of the first gas passage (e.g., the side edge closer to the gas inlet 3731 and / or gas outlet 3732 of the inner shell 3730). In some embodiments, the guide plate 3734 may be used to guide gas downward to the housing below the lid 3700. Therefore, the guide plate 3734 may reduce the amount of gas flowing into other spaces (e.g., the space between the lid 3710 and the inner shell 3730). In some embodiments, the gas passage sealing frame 3740 can be connected to the inner shell 3730 to ensure airtightness between the inner shell 3730 and the outer shell 3710. In some embodiments, the gas passage sealing frame 3740 can be fixed to the inner shell 3730 by adhesive, riveting, tenoning, clamping, engagement, or any combination thereof.

[0101] In some embodiments, the gas inlet 3731 (also referring to the humidification component gas inlet) and outlet 3733 of the first gas channel can be located on different side surfaces of the inner shell 3730. For example, as Figure 10A As shown, the gas inlet 3731 can be located on the right side portion of the first side surface of the inner shell 3730, and the outlet 3733 of the first gas channel can be located on the left side portion of the second side surface of the inner shell 3730, wherein the second side surface of the inner shell 3730 can be adjacent to the first side surface of the inner shell 3730 in a clockwise direction. The gas inlet 3731 and outlet 3733 of the first gas channel can be as follows: Figure 10A The arrangement shown makes it difficult for liquid (e.g., water) in the housing to enter the main body of the breathing ventilation device, regardless of its placement or movement. In some embodiments, the distance between the outlet 3733 of the first gas channel and the gas inlet of the humidification component can be greater than the distance between the outlet 3733 of the first gas channel and the gas outlet of the humidification component. In some embodiments, the first side surface of the cover 3710 of the liquid chamber can face the first sidewall of the housing of the main body of the breathing ventilation device.

[0102] In some implementations, gas outlet 3732 (also referring to the humidification component gas outlet) can be used via a second gas channel (e.g., such as...). Figure 10BThe gas passage indicated by the middle arrow guides the gas (e.g., humidified and pressurized breathing gas) back into the main body of the breathing ventilation device. Figure 10B As shown, the second gas passage (also referred to as the gas outlet passage) may include an inlet 3735. In some embodiments, the inlet 3735 of the second gas passage may be used to connect the second gas passage to the housing. Gas can flow from the liquid chamber into the second gas passage through the inlet 3735. In some embodiments, the first gas passage and / or the second gas passage may have a substantially rectangular cross-section. In some embodiments, the first gas passage and the second gas passage may intersect each other.

[0103] In some embodiments, the gas outlet 3732 (also referred to as the humidification component gas outlet) and inlet 3735 of the second gas passage can be located on different side surfaces of the inner housing 3730. For example, as Figure 10B As shown, the gas outlet 3732 can be located on the left side portion of the first side surface of the inner shell 3730, and the inlet 3735 of the second gas channel can be located on the right side portion of the third side surface of the inner shell 3730, wherein the third side surface of the inner shell 3730 can be adjacent to the first side surface of the inner shell 3730 in a counterclockwise direction. The gas outlet 3732 and inlet 3735 of the second gas channel can be as follows: Figure 10B The arrangement shown makes it difficult for liquid (e.g., water) in the housing to enter the main body of the breathing ventilation device, regardless of its placement or movement. In some embodiments, the first gas channel and the second gas channel may be configured to be non-parallel (e.g., intersecting) within the liquid chamber, such that the outlet 3733 of the first gas channel and the inlet 3735 of the second gas channel are in different directions. In some embodiments, the distance between the inlet 3735 of the second gas channel and the gas outlet of the humidification component may be greater than the distance between the inlet 3735 of the second gas channel and the gas inlet of the humidification component.

[0104] In some embodiments, the gas inlet and / or gas outlet of the cover 3700 (i.e., the humidification component gas inlet and / or the humidification component gas outlet of the liquid chamber) may be disposed on the first side surface of the cover 3710 of the liquid chamber (corresponding to the first side surface of the inner shell 3730). In some embodiments, the outlet 3733 of the first gas channel and the inlet 3735 of the second gas channel may be disposed on opposite side surfaces of the inner shell 3730. For example, the outlet 3733 of the first gas channel may be disposed on the second side surface of the inner shell 3730, while the inlet 3735 of the second gas channel may be disposed on the third side surface of the inner shell 3730. That is, the outlet 3733 of the first gas channel may face the second side surface of the cover 3710 corresponding to the second side surface of the inner shell 3730, while the inlet 3735 of the second gas channel may face the third side surface of the cover 3710 corresponding to the third side surface of the inner shell 3730.

[0105] In some implementations, such as Figure 10B As shown, a portion or all of the base plate 3750 may be positioned below the lower edge of the gas inlet 37311 and / or the lower edge of the gas outlet 37321 of the cover 3700. Therefore, the base plate 3750 can accommodate a portion of the liquid within the housing, and the height difference between the base plate 3750 and the lower edges of the gas inlet 37311 and / or the gas outlet 37321 prevents liquid from entering the main body of the breathing ventilation device. In some embodiments, the inner shell 3730 may include one or more third hooks 3736. The third hooks 3736 may be used to connect the gas passage sealing frame 3740 to the inner shell 3730. Figure 10B As shown, the inner shell 3730 may include three hooks 3736, which may be equidistantly spaced on the bottom edge of the first side surface of the inner shell 3730.

[0106] Figure 11 An exemplary base plate of the inner shell of a box lid according to some embodiments of the present disclosure is shown. For example... Figure 11 As shown, the base plate 3750 may include one or more sealing strips 3752 disposed along the edge of the base plate 3750. The sealing strips 3752 may be used to improve the airtightness of the connection between the base plate 3750 and the inner shell 3730. In some embodiments, the base plate 3750 may include the bottom of a second gas passage (e.g., a second inclined plate 3751) and the bottom of a first gas passage (e.g., the remainder of the base plate 3750 excluding the second inclined plate 3751).

[0107] Figure 12A and 12B An exemplary internal structure of the inner shell of a box lid according to some embodiments of the present disclosure is shown. Figure 12A The air intake passage of the 3700 case cover is shown. Figure 12A This shows an upward view of the box cover 3710 without the bottom plate 3750. Figure 12B The air vent of the 3700 case cover is shown. Figure 12B A cross-sectional view of the housing cover 3700 is shown. In some embodiments, the air intake passage (i.e., such as...) Figure 12A The first gas passage (indicated by the arrow shown) may include a first portion and a second portion. The first portion of the first gas passage may extend from the gas inlet (e.g., the first hole 3721) of the cover 3700 to a common plane (e.g., by a...). Figure 12A and 12B The parallelogram drawn with dashed lines indicates the common plane 3737. A second portion of the first gas passage may extend from the common plane 3737 to the outlet 3733 of the first gas passage. In some embodiments, the second gas passage may include a first portion and a second portion. The first portion of the second gas passage may extend from the inlet of the second gas passage 3735 to the common plane 3737. The second portion of the second gas passage may extend from the common plane 3737 to the gas outlet (e.g., second hole 3722) of the cover 3700.

[0108] In some embodiments, a first portion of the first gas passage may be substantially parallel to a second portion of the second gas passage along a direction having an angle (e.g., substantially perpendicular) with respect to a first side surface of the cover 3710 of the housing 3700 (e.g., the side surface including the connecting frame 3713 as shown in FIG. 5). In some embodiments, the second portion of the first gas passage and the first portion of the second gas passage may be disposed in different layers. In some embodiments, a first projection of the second portion of the first gas passage on a horizontal plane and a second projection of the first portion of the second gas passage on that horizontal plane may intersect or at least partially overlap. In some embodiments, such as Figure 12A and 12B As shown, the second portion of the first gas passage may be disposed below the first portion of the second gas passage. In some embodiments, the first portion of the second gas passage may be disposed below the second portion of the first gas passage. In some embodiments, the area of ​​the first cross-section of the first gas passage located on the common plane may be equal to or less than a portion (e.g., half) of the area of ​​the gas inlet (e.g., the first hole 3721) of the cover 3700. In some embodiments, the area of ​​the second cross-section of the second gas passage located on the common plane may be equal to or less than a portion (e.g., half) of the area of ​​the gas outlet (e.g., the second hole 3722) of the cover 3700.

[0109] In some embodiments, a first inclined plate 3739 may be provided between the first cross-section and the gas inlet (e.g., first hole 3721) of the cover 3700 (see [link]). Figure 10B and 12B The first inclined plate 3739 can be used to smooth the flow of pressurized breathing gas in the first gas passage. In some embodiments, the first inclined plate 3739 (see...) Figure 10B and 12B This can be configured as part of the inner shell 3730. In some embodiments, a second inclined plate 3751 can be provided between the second cross-section and the gas outlet (e.g., second hole 3722) of the cover 3700. The second inclined plate 3751 can be used to smooth the flow of humidified and pressurized breathing gas in the second gas passage. In some embodiments, the second inclined plate 3751 (see...) Figure 11 and 12B It can be set on the bottom of the cover 3700. For example, the second inclined plate 3751 can be part of the base plate 3750.

[0110] It should be noted that the above description of the can lid 3700 is provided for illustrative purposes only and is not intended to limit the scope of this disclosure. Various changes and modifications can be made by those skilled in the art based on the teachings of this disclosure. However, such changes and modifications do not depart from the scope of this disclosure.

[0111] Furthermore, certain terms have been used to describe embodiments of this disclosure. For example, the terms "one embodiment," "implementation," and / or "some embodiments" mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in at least one embodiment of this disclosure. Therefore, it should be emphasized and understood that two or more references to "implementation," "one embodiment," or "alternative embodiment" in various parts of this specification do not necessarily refer to the same embodiment. Moreover, specific features, structures, or characteristics may be suitably combined in one or more embodiments of this disclosure.

[0112] Finally, it should be understood that the embodiments disclosed herein are illustrative of the principles of the embodiments of this application. Other modifications that may be adopted are within the scope of this application. Therefore, alternative configurations of the embodiments of this application can be utilized in accordance with the teachings herein, rather than as examples or limitations. Thus, the embodiments of this application are not limited to those precisely shown in the figures and described herein.

Claims

1. A humidification assembly configured to humidify pressurized breathing gas from a breathing ventilation device; The humidification assembly includes a liquid chamber configured to contain liquid; The liquid chamber includes a housing and a lid; The box cover includes: The chamber comprises a first gas channel, a second gas channel, and a humidification component gas inlet, wherein the humidification component gas inlet is configured to introduce pressurized breathing gas into the chamber via the first gas channel, and wherein the first gas channel includes an outlet. And a humidification component gas outlet, configured to lead humidified and pressurized breathing gas out of the housing via a second gas passage, wherein the second gas passage includes an inlet; The outlet and the inlet are disposed within the liquid chamber, and the outlet and the inlet open in different directions; The liquid chamber further includes a housing, wherein the outlet of the first gas passage faces a second side surface of the housing of the liquid chamber, and the inlet of the second gas passage faces a third side surface of the housing of the liquid chamber, the second side surface of the housing of the liquid chamber being opposite to the third side surface of the housing of the liquid chamber.

2. The humidification assembly of claim 1, wherein at least a portion of the first gas channel and at least a portion of the second gas channel extend substantially along the same plane.

3. The humidification assembly according to claim 1 or 2, wherein at least one of the first gas channel and the second gas channel includes a plurality of extending directions along its length.

4. The humidification assembly according to claim 1 or 2, wherein a portion of the first gas channel and a portion of the second gas channel are disposed in different layers.

5. The humidification assembly according to claim 1, wherein at least a portion of the bottom of the first gas channel is located below the lower edge of the humidification assembly gas inlet of the liquid chamber, and / or, at least a portion of the bottom of the second gas channel is located below the lower edge of the humidification assembly gas outlet of the liquid chamber.

6. The humidification component according to claim 1 or 2, wherein, The first gas channel and / or the second gas channel have multiple different cross-sectional areas along their extension direction.

7. The humidification assembly according to claim 1 or 2, wherein at least a portion of the first gas channel and / or the second gas channel has a substantially rectangular cross-section.

8. The humidification component according to claim 1, comprising: The humidification component is connected to the body of the breathing ventilation device via at least one connection port to form a flow channel between the body of the breathing ventilation device and the liquid chamber; the connection port includes a sealing member that at least partially forms the flow channel.

9. The humidification component according to claim 1, comprising: The humidified and pressurized breathing gas is returned to the main body of the breathing ventilation device through the second gas channel; Alternatively, humidified and pressurized breathing gas can be introduced into the breathing tube via a second gas channel.

10. A respiratory ventilation device for delivering respiratory gas to a patient interface, the respiratory ventilation device comprising a humidification component according to any one of claims 1-9, and further comprising: A gas pressurization unit is configured to generate pressurized breathing gas by pressurizing the breathing gas. The gas pressurization unit is located in the body of the breathing ventilation device, the body of which includes a housing having a first sidewall for discharging the pressurized breathing gas. A main gas inlet, configured to introduce the breathing gas into the breathing ventilation device, the main gas inlet being disposed on the second side wall of the housing of the main body of the breathing ventilation device; and a main gas outlet, which is configured to discharge humidified and pressurized breathing gas into the breathing tube.

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