Humidification components and respiratory ventilation equipment

Abstract

The present application provides a humidification component and a respiratory ventilation device. The humidification component is used to humidify the pressurized respiratory gas provided by the respiratory ventilation device, the humidification component includes a liquid chamber for accommodating one or more liquids, the liquid chamber includes a box body and a box cover, the box cover includes: a first gas channel, a second gas channel, a humidification component gas inlet and a humidification component gas outlet, the humidification component gas inlet is configured to introduce the pressurized respiratory gas into the box body via the first gas channel, the humidification component gas outlet is configured to lead the humidified and pressurized respiratory gas out of the box body via the second gas channel; and also includes a sealing member, which is used to fluid-tightly connect the gas inlet and the gas outlet.

Description

[0001] This application is a divisional application of the Chinese patent application with application number 201880093168.8 filed on October 26, 2018. Technical Field

[0002] The present application relates generally to the detection, diagnosis, treatment, prevention and amelioration of respiratory related conditions and, more particularly, to humidification assemblies and respiratory ventilation devices. Background Art

[0003] Breathing is important for maintaining the life of a subject (e.g., a human body). A subject's respiratory system facilitates gas exchange. A subject's nose and / or mouth form the entrance to the subject's airway. There are a range of breathing disorders (e.g., apnea, hypopnea, hyperpnea, snoring, etc.). Breathing disorders may threaten a subject's health (and / or life). Therefore, it is desirable to develop systems and methods for delivering breathing gases to a subject. Summary of the invention

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

[0005] In order to achieve the above-mentioned objectives, the present application provides a humidification component on the one hand, which is configured to humidify pressurized respiratory gas from a respiratory ventilation device, wherein the humidification component includes a liquid chamber configured to accommodate one or more liquids, wherein the liquid chamber includes a box body, a box cover and a humidification component gas inlet, and the humidification component gas inlet is configured to introduce pressurized respiratory gas into the box body 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 comprises a humidification assembly gas outlet configured to direct the humidified and pressurized breathing gas back into the body of the respiratory ventilation device via a second gas passageway, wherein the second gas passageway comprises an inlet.

[0007] In one embodiment, at least a portion of the bottom of the first gas channel is located below the lower edge of the gas inlet of the humidification component 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 gas outlet of the humidification component of the liquid chamber below.

[0008] The arrangement can prevent fluid (eg condensed water) from being discharged from the gas channel through the gas outlet and / or entering the gas outlet when the tank cover is closed, or reduce such risk.

[0009] On the other hand, the present application provides a respiratory ventilation device, which is configured to deliver respiratory gas to a patient interface, and includes the above-mentioned humidification component, and also includes: a gas pressurization unit, which is configured to generate pressurized respiratory gas by pressurizing the respiratory gas, and the gas pressurization unit is located in the main body of the respiratory ventilation device, and the main body of the respiratory ventilation device includes a shell having a first side wall, which is configured to discharge the pressurized respiratory gas; a main gas inlet, which is used to introduce respiratory gas into the respiratory ventilation device, and the main gas inlet is arranged on the second side wall of the shell of the main body of the respiratory ventilation device; and a main gas outlet, which is configured to discharge the humidified and pressurized respiratory gas into the breathing tube.

[0010] In one embodiment, the primary gas outlet is configured to be disposed on a body of a respiratory ventilation device.

[0011] In one embodiment, the primary gas outlet is provided on the liquid chamber.

[0012] In one embodiment, a first side surface of the housing of the liquid chamber faces a first side wall of a casing of a body of the respiratory ventilation device.

[0013] In one embodiment, the liquid chamber comprises a housing and a housing cover, wherein the housing cover is pivotably connected to the housing via a connection mechanism having a rotation axis; wherein the housing comprises an opening for filling at least one of the one or more liquids, wherein the opening is opened by opening the housing cover and / or can be closed by closing the housing cover; and wherein the humidification assembly and the main body of the respiratory ventilation device are fluidically connected by closing the housing cover and / or are fluidically disconnected by opening the housing cover.

[0014] In some embodiments, the case and the body are attachable to each other by moving the case relative to the body in an attachment direction, with the angle between the rotation axis and the attachment direction being between 20°-160°, or in some embodiments, the angle being between 45°-135°, or in some other embodiments, the angle being between 60°-120°; and / or wherein the case and the body are unlocked from each other by moving the case relative to the body in an unlocking direction, with the angle between the rotation axis and the unlocking direction being between 20°-160°, or in some embodiments, the angle being between 45°-135°, or in some other embodiments, the angle being between 60°-120°.

[0015] By arranging the rotation axis relative to the attachment direction in the described manner, closing the lid can be in a direction perpendicular to the rotation axis and can have a component in the attachment direction. Therefore, closing the lid towards the box body can also connect the box body to the main body. This improves the comfort of the user.

[0016] In some embodiments, the angle between the attachment direction and the unlocking direction is between -45° and 45°, in some other embodiments, the angle is between -30° and 30°, and in some 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 may further be combined with the axis of rotation to allow the lid to be opened only in a direction substantially opposite to the unlocking direction, to avoid the user accidentally unlocking the case by opening the lid. This improves the comfort of the user.

[0017] In some embodiments, the humidification component and the main body of the respiratory ventilation device can be fluidly connected through at least one connecting port to form at least one flow channel between the main body of the respiratory ventilation device and the liquid chamber; wherein the at least one connecting port includes a gas inlet and a gas outlet; wherein the connecting port includes an axial seal, which is used to fluid-tightly connect the gas inlet and the gas outlet; wherein the inner surface of the axial sealing member at least partially forms the flow channel, and wherein the axial sealing member defines a sealing plane.

[0018] By using an axial sealing member, the sealing member creates less friction during connection and disconnection than, for example, a tapered connector that creates a radial seal, thereby improving user comfort and operating safety.

[0019] 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°-65°; and / or wherein the angle between the sealing plane and the attachment direction is between 15°-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 wherein the angle between the liquid level and the unlocking direction is between 15°-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°.

[0020] By arranging the sealing plane in the described manner relative to the liquid level (e.g., a horizontal plane), and / or by arranging the attachment direction in the described manner relative to the liquid level, the risk of liquid spilling during sealing, unlocking, and / or attaching is reduced. The liquid level is the designed level of liquid during normal use of the respiratory ventilation device and the humidification assembly.

[0021] In some embodiments, the inner surface of the axial sealing member at least partially forms the flow channel and / or the overlapping portion of the gas inlet and the gas outlet in a sealed state is less than 5 mm, so that the gas inlet can be disconnected from the gas outlet without contacting the gas inlet and the gas outlet; wherein the axial seal includes one or more elastic materials with a Shore hardness of less than 70 (for example, 20-70, 60, etc.) according to ASTMD2240 Typ A, wherein, in the sealed state, the axial seal is compressed axially by 10%-50% and / or 0.5-6mm (for example, 1-3mm) compared to a state in which the main body and the humidification component are unlocked.

[0022] In some embodiments, the gas inlet comprises an inlet hole and the gas outlet comprises an outlet hole, wherein the inlet hole and the outlet hole are formed of one or more materials having a higher hardness than the elastomeric material forming the axial sealing member.

[0023] In some embodiments, the axial sealing member is formed around the inlet aperture and / or around the outlet aperture.

[0024] In some embodiments, the inlet hole and the outlet hole are formed by a material having a higher hardness than the elastic material forming the axial sealing member, and the inlet hole and the outlet hole are spaced apart in the axial direction of the axial seal by the axial sealing member. In some embodiments, the inlet hole and the outlet hole are spaced apart by the axial sealing member in the axial direction of the axial sealing member in the sealed and attached state of the humidification component by at least 1 mm, and in some embodiments, at least 5 mm. By spacing the inlet hole and the outlet hole in the axial direction, not only the friction between the gas inlet and outlet is minimized, but also the collision between the materials forming the inlet hole and the outlet hole with higher hardness is minimized, thereby reducing sudden noise during the assembly and / or disassembly of the respiratory ventilation device. Shortly before the inlet and outlet holes are connected, the relative movement between the humidification component and the main body of the respiratory ventilation device is also buffered by the axial sealing member, which further increases the comfort of the user.

[0025] In some embodiments, the axial sealing member includes a plurality of components constructed of one or more elastomeric materials and configured such that only dynamic friction forces exist between the components during coupling or decoupling of the humidification assembly.

[0026] In some embodiments, the axial sealing member includes a sealing lip protruding from at least one of the inlet hole and the outlet hole, wherein the sealing lip is inclined toward the center of the flow channel and is configured to bend toward the center of the flow channel if pressurized and / or compressed by connecting the gas inlet and the gas outlet.

[0027] In some embodiments, the liquid chamber is detachably connected to the main body of the respiratory ventilation device via a push-push mechanism.

[0028] In some embodiments, the pushing direction of the push-push mechanism is substantially perpendicular to the rotation axis of the connecting mechanism, wherein the humidification assembly and the main body of the respiratory ventilation device can be fluidically connected by connecting the case to the main body along the pushing direction when the case is connected to the main body, and by connecting the liquid chamber to the main body along the pushing direction when the case cover is closed.

[0029] In some embodiments, the respiratory ventilation device may further include: a breathing mask; and a breathing tube configured to direct pressurized breathing gas from a gas outlet of the respiratory ventilation device to the breathing mask.

[0030] In some embodiments, a method for operating a respiratory ventilation device may include: connecting the humidification component to the main body of the respiratory ventilation device by pushing the liquid chamber along a pushing direction; and unlocking the humidification component from the main body by pushing the liquid chamber substantially along the pushing direction.

[0031] In some embodiments, the liquid chamber may include: a box body; and a box cover, which is pivotally connected to the box body via a connecting mechanism; the method may also include: before the connecting step, placing the humidification component on the surface of the respiratory ventilation device; the step of connecting the humidification component may also include locking the box cover with the box body by pushing the box cover basically along the pushing direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present application is further described according 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, in which the same reference numerals represent similar structures in several views of the drawings, and in which:

[0033] Figure 1 shows an exemplary respiratory ventilation device according to some embodiments of the present disclosure;

[0034] Figure 2A and Figure 2B shows an exploded view of an exemplary liquid chamber according to some embodiments of the present disclosure;

[0035] FIG. 3A to FIG. 3D shows an exemplary connection between a liquid chamber and a body of a respiratory ventilation device according to some embodiments of the present disclosure;

[0036] Figure 4 shows another exemplary connection between a liquid chamber and a body of a respiratory ventilation device according to some embodiments of the present disclosure;

[0037] FIG. 5A to FIG. 5C shows an exemplary connection between a liquid chamber and a body of a respiratory ventilation device according to some embodiments of the present disclosure;

[0038] Figure 6 An exemplary connection between a connector and a connecting plate of a case cover when the case cover is closed according to some embodiments of the present disclosure is shown;

[0039] Fig. 7A and Figure 7B An exemplary liquid chamber of a respiratory ventilation device according to some embodiments of the present disclosure is shown. DETAILED DESCRIPTION

[0040] These and other features of the present application, as well as the operation and function of the relevant elements of the structure and the combination and manufacturing economy of the parts may become more apparent in view of the following description. Reference is made to the accompanying drawings, all of which form a part of this application. However, it should be clearly understood that the drawings are for illustration and description only and are not intended to limit the scope of the present application. It should be understood that the drawings are not drawn to scale.

[0041] In the present 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 a combination 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 a subject's respiratory-related condition.

[0042] In some embodiments, the respiratory ventilation device can deliver pressurized breathing gas to a subject (e.g., a nose and / or mouth of a subject). In some embodiments, the respiratory ventilation device may include a gas inlet and a gas outlet. The gas inlet may be configured to introduce breathing gas into the respiratory ventilation device. In some embodiments, the respiratory 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 discharge the pressurized breathing gas. In some embodiments, the breathing tube may be connected to a subject interface. Therefore, the pressurized breathing gas generated by the respiratory ventilation device can be discharged to the subject via the breathing tube and the subject interface.

[0043] In some embodiments, the subject can be a healthy person. In some embodiments, the subject can be a patient. In some embodiments, the subject interface can be configured to connect the respiratory ventilation device to the subject, for example, by providing a flow of breathing gas (e.g., air). In some embodiments, the subject interface can include a gas channel for guiding breathing gas. The subject connection device can include a mask, a tube, etc.

[0044] The respiratory ventilation device may include a pressurized air (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.

[0045] The 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 hold 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 with a temperature range of, for example, 30-50 degrees Celsius. In some embodiments, the liquid chamber may include a box and / or a box cover. The box may be configured to hold one or more liquids. The box cover may be configured to introduce (pressurized) breathing gas into the surface of one or more liquids, and / or introduce humidified (pressurized) breathing gas into the liquid chamber. In some embodiments, the box 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 channel, and / or the gas outlet being configured to introduce humidified (pressurized) breathing gas back into the respiratory ventilation device via a second gas channel.

[0046] Figure 1 An exemplary respiratory ventilation device according to some embodiments of the present disclosure is shown. 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 conductive plate 1810 (see Figure 2A and 2B ). Liquid chamber 1704 can be configured to contain one or more liquids (e.g., water and / or medication). The thermally conductive plate can be configured to conduct heat from heating plate 1710 to heat the one or more liquids and generate steam to humidify the pressurized respiratory gas. In some embodiments, the thermally conductive plate can be disposed at the bottom of liquid chamber 1704. In some embodiments, the thermally conductive plate can include a metal thermally conductive material.

[0047] In some embodiments, the body 1702 may include a gas pressurization unit ( Figure 11704), 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 body 1702 and liquid chamber 1704. In some embodiments, support plate 1707 may be disposed at a second interface between body 1702 and liquid chamber 1704. In some embodiments, support plate 1707 may be fixed to a substrate of body 1702. In some embodiments, the first interface between body 1702 and liquid chamber 1704 may refer to a side surface of body 1702 and a corresponding side surface of liquid chamber 1704. In some embodiments, the second interface between body 1702 and liquid chamber 1704 may refer to a bottom surface of liquid chamber 1704 and a 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 to liquid chamber 1704. In some embodiments, gas inlet 1706 can be configured to direct pressurized and humidified breathing gas from liquid chamber 1704 back into body 1702. In some embodiments, support plate 1707 can include first hole 1709 and / or second hole 1711. In some embodiments, first hole 1709 and / or second hole 1711 can be disposed on the second interface. In some embodiments, at least a portion of heating plate 1710 can be disposed in second hole 1711.

[0048] In some embodiments, the liquid chamber 1704 can be detachably connected to the main body 1702, so that the humidification assembly can be detachably connected to the main body 1702. For example, the liquid chamber 1704 can be detachably connected to the main body 1702 through a push-push mechanism via a hole (e.g., first hole 1709) of the support plate 1707. If the liquid chamber 1704 is mounted on the main body 1702 of the respiratory ventilation device 1700, the bottom of the liquid chamber 1704 (e.g., the heat conductive plate of the liquid chamber 1704) can be in close contact with the heating plate 1710.

[0049] 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, as Figure 2A and 2BAs shown, the liquid chamber 1704 may include a box cover and a box body. In some embodiments, the box cover may include a cover shell 1802 and one or more gas channels 1805. In some embodiments, the box body may include a box 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 channel 1805 may be arranged in the box. In some embodiments, the liquid chamber 1704 may include a fixed gasket 1806 and / or a box cover sealing gasket 1807 located between the box body and the box cover. The fixed gasket 1806 and / or the box cover sealing gasket 1807 may be configured to achieve a sealed connection between the box body and the box cover. In some embodiments, the liquid chamber 1704 may include a connecting plate 1803 and / or a gas channel sealing gasket 1804 to cooperate with the main body 1702.

[0050] In some embodiments, the components of the liquid chamber 1704 can be detachably connected. For example, the connecting plate 1803 can be arranged on and / or fixed to the cover shell 1802 by bonding, riveting, tenoning, clamping, meshing, etc. or any combination thereof. As another example, the gas channel sealing gasket 1804 can be connected and / or fixed to the gas channel 1805. As another example, the fixed gasket 1806 and / or the box cover sealing gasket 1807 can be arranged on and / or fixed to the box shell 1808 to improve the airtightness between the cover shell 1802 and the box shell 1808. In some embodiments, the fixed gasket 1806 can be arranged in the box cover sealing gasket 1807. As another example, the heat conducting plate sealing gasket 1809 can be arranged between the bottom frame of the heat conducting plate 1810 and the box shell 1808. As another example, the heat conducting plate 1810 can be connected to the heat conducting plate sealing gasket 1809 by bonding, riveting, tenoning, clamping, meshing, etc. or any combination thereof. As yet another example, the heat conductive plate sealing gasket 1809 may be secured to the bottom frame of the tank shell 1808 by bonding, riveting, mortising, clamping, meshing, or the like, or any combination thereof.

[0051] Figures 3A-3D An exemplary connection between a liquid chamber and a body of a respiratory ventilation device is shown according to some embodiments of the present disclosure. Figure 3A An isometric view of a connector 2301 is shown, which is connected to a cover 2302 of a liquid chamber 2303. It should be noted that for illustration purposes, the cover shell of the cover 2302 is not shown. Figure 3A Shown in. Figure 3B An axonometric view of connector 2301 is shown. Figure 3C An axonometric view of the tank cover 2302 is shown. Figure 3D A cross-sectional view of the sealed connection between the gasket 2305 of the connector 2301 and the tank cover 2302 is shown.

[0052] The connector 2301 can be configured to provide a sealed connection between the box cover 2302 and the main body of the respiratory ventilation device, thereby ensuring the airtightness of the pressurized breathing gas flowing between the liquid chamber 2303 and the main body of the respiratory ventilation device. In some embodiments, the connector 2301 can be fixed to the main body of the respiratory ventilation device. In some embodiments, the connector 2301 can be detachably connected to the main body of the respiratory ventilation device. In some embodiments, the housing of the main body of the respiratory ventilation device may include a space for accommodating the connector 2301 (e.g., chamber 2502). In some embodiments, the connector 2301 and the main body can be an integral piece. In some embodiments, if the liquid chamber 2303 is fixed to a support plate (e.g., a support plate) of the main body of the respiratory ventilation device Figure 1 2307) and the box cover 2302 is closed with the box body of the liquid chamber 2303, then the connector 2301 can provide a sealed connection between the box cover 2302 and the main body of the respiratory ventilation device. In some embodiments, the connector 2301 can be fixed or mounted on the box cover 2302. In some embodiments, the connector 2301 can be detachably connected to the box cover 2302. In some embodiments, the box cover 2302 can include a space for mounting the connector 2301. In some embodiments, the connector 2301 and the box cover 2302 can be an integral part.

[0053] like Figure 3BAs shown, the connector 2301 may include a support frame 2304 and / or a gasket 2305. The support frame 2304 may be configured to support the gasket 2305 and / or facilitate the fixation of the gasket 2305 to the body of the respiratory ventilation device. In some embodiments, the gasket 2305 may include an inclined surface. In some embodiments, there may be an inclination angle between the inclined surface of the connector 2301 (or the gasket 2305) and the horizontal plane. In some embodiments, the inclination angle may be substantially within 0 degrees to 90 degrees (e.g., within 30 to 60 degrees). The gasket 2305 may be configured to form a sealed connection between the box cover 2302 and the body of the respiratory ventilation device. In some embodiments, the gasket 2305 may include a first hole 2306 and / or a second hole 2307 disposed on the inclined surface. In some embodiments, the 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 respiratory ventilation device. In some embodiments, the edge of the first hole 2306 can form a first protruding structure 2311. In some embodiments, the edge of the second hole 2307 may include a second protruding structure 2312. The first protruding structure 2311 and / or the second protruding structure 2312 can protrude to the box cover 2302. The first protruding structure 2311 and / or the second protruding structure 2312 can facilitate the sealed connection between the connector 2301 and the box cover 2302. In some embodiments, the cross-section of the first protruding structure 2311 and / or the second protruding structure 2312 can have a C-shape, an S-shape, an O-shape, a V-shape, an M-shape, an N-shape, a Z-shape, a U-shape or one or more folds, etc., or a combination thereof. In some embodiments, the first protruding structure 2311 and / or the second protruding structure 2312 can be made of a soft material (e.g., silicone, soft glue, etc., 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 gasket 2305. In some embodiments, the first protruding structure 2311 and / or the second protruding structure 2312 may be made of a material different from the material of the gasket 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 gasket 2305.

[0054] In some embodiments, the gasket 2305 can be fixed to the main body of the respiratory ventilation device (e.g., the support frame 2304 of the connector 2301). In some embodiments, the gasket 2305 can be detachably connected to the main body of the respiratory ventilation device (e.g., the support frame 2304 of the connector 2301) by, for example, gluing, bonding, bolting, etc. or a combination thereof. In some embodiments, the support frame 2304 can be made of a rigid plastic material. Exemplary rigid plastic materials may include acrylonitrile butadiene styrene (ABS) resin material, polyoxymethylene (POM) plastic material, polystyrene (PS) plastic material, polymethyl methacrylate (PMMA) plastic material, polycarbonate (PC) plastic material, poly(ethylene terephthalate) (PET) plastic material, poly(butylene terephthalate) (PBT) plastic material or poly(phenylene oxide) (PPO) plastic material, etc. or any combination thereof. In some embodiments, the gasket 2305 can be made of an elastic material, and the elastic material includes, for example, an elastomer, a rubber (e.g., silicone), etc. or a combination thereof. In some embodiments, gasket 2305 can include a raised edge at the interface of support frame 2304 and gasket 2305. The raised edge of gasket 2305 can facilitate a sealed connection between connector 2301 and the body of the respiratory ventilation device.

[0055] like Figures 3A-3D As shown, the inclined surface of the gasket 2305 can face the corresponding inclined surface of the connecting plate 2308 of the box cover 2302. The box cover 2302 may include a gas inlet 2309 and a gas outlet 2310. The first hole 2306 located on the inclined surface of the gasket 2305 can correspond to the gas inlet 2309 of the box cover 2302, and the second hole 2307 located on the inclined surface of the gasket 2305 can correspond to the gas outlet 2310 of the box cover 2302. In some embodiments, if the liquid chamber 2303 is fixed to a support plate (e.g., a support plate) of the main body of the respiratory ventilation device, Figure 1 2303), and the box cover 2302 is closed with the box body of the liquid chamber 2303, and the box cover 2302 can be sealed with the main body of the respiratory ventilation device through the gasket 2305. The first hole 2306 of the gasket 2305 and the gas inlet 2309 of the box cover 2302 can introduce the pressurized breathing gas from the main body of the respiratory ventilation device into the liquid chamber 2303. The second hole 2307 of the gasket 2305 and the gas outlet 2310 of the box cover 2302 can introduce the humidified and pressurized breathing gas from the liquid chamber 2303 back into the main body of the respiratory ventilation device.

[0056] like Figure 3DAs shown, if the box cover 2302 is closed, the first protruding structure 2311 can be squeezed and deformed, and then can form a closed line contact (e.g., around the edge of the gas inlet 2309 and / or the gas outlet 2310) with the connecting plate 2308 of the box cover 2302. Therefore, the airtightness of the breathing gas flowing between the main body of the respiratory ventilation device and the liquid chamber 2303 can be ensured.

[0057] Figure 4 Another exemplary connection between a liquid chamber and a body of a respiratory ventilation device according to some embodiments of the present disclosure is shown. Figure 4 As shown, the liquid chamber 2403 may include a box body 2401 and a box cover 2402. The connector 2301 may be configured to provide a sealed connection between a portion of the box body 2401 and the main body of the respiratory ventilation device. In some embodiments, the connector 2301 may not directly contact the box cover 2402. Therefore, the state of the box cover 2402 (open or closed) may not affect the connection between the connector 2301 and the box body 2401. In some embodiments, the box cover 2402 can be opened by a handle 2404. The handle 2404 may have one or more notches, and the notches may make the handle 2404 easier to operate. In some embodiments, the box cover 2402 may be a sliding cover. In some embodiments, the box cover 2402 may slide in a horizontal direction or slide in a direction that is inclined at an angle (e.g., 10 degrees, 20 degrees, 30 degrees, etc.) relative to the horizontal direction. In some embodiments, in order to ensure a sealed connection between the box body 2401 and the box cover 2402, the interface 2405 between the box body 2401 and the box cover 2402 may be provided with a sealing material (or elastic material) including, for example, silicone resin.

[0058] Figures 5A-5C An exemplary connection between a body and a liquid chamber of a respiratory ventilation device according to some embodiments of the present disclosure is shown. The connector 2601 can be configured to provide a sealed connection between a box cover 2603 and a body 2602 of the respiratory ventilation device. In some embodiments, the connector 2601 can include a first threaded hose 2601a and / or a second threaded hose 2601b. The hollow hole of the first threaded hose 2601a can form a gas outlet of the body 2602. The hollow hole of the second threaded hose 2601b can form a gas inlet of the body 2602. In some embodiments, the first threaded hose 2601a and / or the second threaded hose 2601b can be made of an elastic material, and the elastic material includes, for example, an elastomer, a rubber (e.g., silicone), etc. or a combination thereof.

[0059] In some embodiments, the box cover 2603 of the liquid chamber may include a connecting plate 2606, which is equipped with a gas inlet 2604 and / or a gas outlet 2605 of the box cover 2603. The gas outlet of the body 2602 may correspond to the gas inlet 2604 of the box cover 2603. The gas inlet of the body 2602 may correspond to the gas outlet 2605 of the box cover 2603. In some embodiments, 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 substantially vertically arranged at the first interface between the main body 2602 of the respiratory ventilation device and the liquid chamber. Correspondingly, the connecting plate 2606 can be substantially horizontally arranged on the box cover 2603. Therefore, if the box cover 2603 is closed, a sealed connection can be formed between the main body 2602 of the respiratory ventilation device and the liquid chamber through the connector 2601.

[0060] Figure 6 FIG. 2 shows an exemplary connection between the connector 2601 and the connecting plate 2606 of the box cover 2603 when the box cover 2603 is closed according to some embodiments of the present disclosure. Figure 6 As shown, if the box cover 2603 is closed, the connector 2601 can be connected to the connecting plate 2606 of the box 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 respiratory ventilation device.

[0061] Fig. 7A and 7B FIG. 2 shows an exemplary liquid chamber of a respiratory ventilation device according to some embodiments of the present disclosure. Fig. 7A and 7B As shown, the liquid chamber 3000 may include a housing 3002 and a housing cover 3004. In some embodiments, the housing cover 3004 may be pivotally connected to the housing 3002 via a connection mechanism. In some embodiments, the liquid chamber 3000 may be opened from the front surface of the respiratory ventilation device.

[0062] The case 3002 may be configured to hold one or more liquids (e.g., water and / or medicine). In some embodiments, the case 3002 may include an opening for filling at least one of the one or more liquids. In some embodiments, the opening can be opened by opening the case cover 3004 and / or closed by closing the case cover 3004. In some embodiments, the main body of the humidification assembly and the respiratory ventilation device can be fluidly connected by closing the case cover 3004 and / or disconnected from the fluid connection by opening the case cover 3004. In some embodiments, the case 3002 and the main body can be connected to each other by moving the case 3002 relative to the main body along the attachment direction, and the angle between the rotation axis and the attachment direction is between 20°-160°. In some embodiments, the case 3002 and the main body can be unlocked from each other by moving the case 3002 relative to the main body along the unlocking direction, and the angle between the rotation axis and the unlocking direction is between 20°-160°. In some embodiments, the angle between the attachment direction and the unlocking direction may be between -45° and 45°.

[0063] In some embodiments, the humidification assembly and the main body of the respiratory ventilation device can be fluidly connected by at least one connection port for forming at least one flow channel between the main body of the respiratory ventilation device and the liquid chamber 3000. In some embodiments, the at least one connection port (e.g., connector 2301) can 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) can include an axial seal (e.g., first protruding structure 2311 and / or second protruding structure 2312) for fluid-tightly connecting the gas inlet 3102 and the gas outlet 3104. In some embodiments, the inner surface of the axial seal can at least partially form the flow channel. In some embodiments, the axial seal can define a sealing plane. In some embodiments, the angle between the sealing plane and the liquid level in the liquid chamber 3000 can be between -75° and 75° (e.g., -30° to 30°). In some embodiments, the angle between the sealing plane and the attachment direction can be between 15°-65°. In some embodiments, the angle between the liquid level and the attachment direction and / or the unlocking direction may be between 45° and 135°.

[0064] In some embodiments, the liquid chamber 3000 can be detachably connected to the main body of the respiratory ventilation device via a push-push mechanism.

[0065] In some embodiments, the pushing direction of the push-push mechanism can be substantially perpendicular to the rotation axis of the connection mechanism. In some embodiments, the humidification assembly and the main body of the respiratory ventilation device can be fluidly connected by closing the box cover 3004 along the pushing direction of the push-push mechanism when the box body 3002 is attached to the main body and / or by attaching the liquid chamber 3000 to the main body along the pushing direction when the box cover 3004 is closed.

[0066] In some embodiments, the case lid 3004 may include a handle 3006, 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 the opening and / or closing of the case lid 3004. The case body 3002 may include one or more notches (e.g., a first notch 3010a or a second notch 3010b) located at a position opposite to the handle 3006 (particularly corresponding to the position of the one or more buckles of the handle). If the case lid 3004 is closed, the case lid 3004 may be fastened to the case body 3002 by the cooperation of the one or more buckles and the one or more notches. In some embodiments, the first notch 3010a and / or the second notch 3010b may be equipped with a transverse rod. In some embodiments, the first buckle 3008a and / or the second buckle 3008b can be fastened by the transverse rod so that the case cover 3004 can be fastened to the case body 3002.

[0067] In some embodiments, the liquid chamber 3000 may include a connector (e.g. Figure 2A and 2B The connecting piece is a fixing gasket 1806 and / or a box cover sealing gasket 1807 shown in the figure, which is configured to provide a sealed connection between the box body 3002 and the box cover 3004 so that when the box cover 3004 is closed with the box body 3002, the liquid chamber 3000 can be sealed. The connecting piece can be made of a material having properties such as sealing, flexibility, elasticity, or any combination thereof. For example, the connecting piece can include a flexible rubber (such as silicone) or a mixture of flexible rubber and hard rubber. In some embodiments, the connecting piece can be fixed to the bottom surface of the box cover 3004 and / or the upper surface of the box body 3002.

[0068] It should be noted that the above description of the liquid chamber 3000 is provided for illustrative purposes only and is not intended to limit the scope of the present disclosure. For those of ordinary skill in the art, various changes and modifications may be made under the teachings of the present disclosure. However, these changes and modifications do not depart from the scope of the present disclosure.

[0069] Having thus described the basic concepts, it will be apparent to those skilled in the art, after reading this detailed disclosure, that the foregoing detailed disclosure is intended to be presented by way of example only and not by way of limitation. Although not expressly stated herein, various changes, improvements, and modifications may be intended by those skilled in the art. These changes, improvements, and modifications are intended to be proposed by the present disclosure and are within the spirit and scope of the exemplary embodiments of the present disclosure.

Claims

1. A humidification assembly configured to humidify pressurized breathing gas from a respiratory ventilation device; The humidification assembly includes a liquid chamber configured to contain a liquid; The liquid chamber comprises a box body and a box cover; The box cover comprises: a first gas channel, a second gas channel, a humidification assembly gas inlet, the humidification assembly gas inlet configured to introduce the pressurized breathing gas into the housing via the first gas channel, wherein the first gas channel includes an outlet, and a humidification assembly gas outlet configured to direct the humidified and pressurized respiratory gas out of the housing via the second gas passage, wherein the second gas passage includes an inlet; The humidification component is connected to the main body of the respiratory ventilation device through at least one connecting port to form a flow channel between the main body of the respiratory ventilation device and the liquid chamber, and the at least one connecting port includes a gas inlet and a gas outlet, the gas inlet corresponds to the gas inlet of the humidification component of the box cover, and the gas outlet corresponds to the gas outlet of the humidification component of the box cover; the connecting port includes a sealing member, which is an axially protruding structure formed around the edge of the gas inlet and / or the gas outlet, which is used to fluid-tightly connect the gas inlet and the gas outlet; wherein the sealing member at least partially forms the flow channel. 2 . The humidifying assembly according to claim 1 , wherein the sealing member is mounted on the tank cover. 3 . The humidification assembly of claim 1 , wherein the gas inlet comprises an inlet hole and the gas outlet comprises an outlet hole. The humidifying assembly of claim 1 , wherein the sealing member is formed of one or more elastomeric materials.

5. The humidifying assembly according to claim 3, wherein: The inlet hole and / or the outlet hole are formed of one or more materials having a higher hardness than the elastic material forming the sealing member.

6. The humidifying assembly of claim 1, wherein the sealing member comprises a plurality of components constructed of one or more resilient materials.

7. The humidifying assembly according to claim 1, wherein: Compared to a state in which the main body of the respiratory ventilation device and the humidification assembly are unlocked, the sealing member is compressed by 10%-50% and / or 0.5-6 mm in the axial direction in the sealed state.

8. The humidifying assembly according to claim 1, further comprising: The sealing member defines a sealing plane having an angle between the sealing plane and an attachment direction of between 15° and 165°, wherein the attachment direction is a direction in which the humidification assembly is connected to the main body of the respiratory ventilation device.

9. The humidifying assembly according to claim 1, further comprising: An angle between a liquid level in the liquid chamber and an unlocking direction is between 15° and 165°, wherein the unlocking direction is a direction in which the humidification component is unlocked relative to the main body of the respiratory ventilation device.

10. The humidifying assembly according to claim 1, further comprising: Relative movement between the humidification assembly and the main body of the respiratory ventilation device is dampened by the sealing member.

11. A respiratory ventilation device configured to deliver respiratory gas to a patient interface, comprising a humidification assembly according to any one of claims 1 to 10, further comprising: a gas pressurizing unit configured to generate the pressurized breathing gas by pressurizing the breathing gas, the gas pressurizing unit being located in a body of the respiratory ventilation device, the body of the respiratory ventilation device comprising a housing having a first sidewall for discharging the pressurized breathing gas; a primary gas inlet configured to introduce breathing gas into the respiratory ventilation device, the primary gas inlet being disposed on a second side wall of the housing of a body of the respiratory ventilation device; and a primary gas outlet configured to discharge the humidified and pressurized breathing gas to the breathing tube.

12. The respiratory ventilation device of claim 11, wherein: The primary gas outlet is disposed on a body of the respiratory ventilation device.

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