Humidifying module for breathing machine

Abstract

The invention relates to the technical field of medical instruments, and discloses a humidifying module for a breathing machine, the humidifying module comprises a shell, an air inlet pipe and an air outlet pipe, a cavity is formed in the shell, the air inlet pipe comprises an outer air inlet section located outside the cavity and an inner air inlet section located inside the cavity, and the outer air inlet section and the inner air inlet section communicate with each other; a certain distance is formed between an air outlet of the inner air inlet section and the cavity wall of the cavity, an air inlet of the air inlet pipe is connected with the breathing pipeline, the air outlet pipe comprises an outer air outlet section located outside the cavity and an inner air outlet section located inside the cavity, the outer air outlet section is communicated with the inner air outlet section, and a certain distance is formed between an air inlet of the inner air outlet section and the cavity wall of the cavity. An air outlet of the air outlet pipe is connected with a breathing pipeline or a breathing mask, so that the humidifying effect and the comfort of a user are improved; in addition, the humidifying module does not need to be provided with an adsorption material, the situation that the adsorption material is prone to mildewing and breeding bacteria after adsorbing water is avoided, and then the use experience of a user is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to a humidification module for a ventilator. Background Art

[0002] A ventilator is generally equipped with a blower. The air outlet of the blower interacts with the user through the breathing tube and the mask. The humidified air will make the user feel more comfortable and easier to be accepted by the user. Therefore, the humidification module has gradually become one of the indispensable components of the ventilator.

[0003] The humidification module is usually a humidification tank located at the end of the ventilator, which has a gas channel inside and contains humidification liquid. The gas blown by the blower enters the interior of the humidification tank through the gas channel and contacts the humidification liquid, which makes the gas humidified. The humidified gas then flows out of the outlet of the humidification tank and flows to the user end through the breathing tube to assist the user in breathing. Since the humidification tank is located at the end of the ventilator, the volume of the whole machine is relatively large, and for the humidification tank with heating function, condensed water is very likely to appear in the breathing tube.

[0004] In order to reduce the volume of the whole machine and avoid the phenomenon of condensation in the breathing circuit, a humidification module installed in the breathing circuit has appeared on the market. It can adsorb water vapor from the gas exhaled by the user and desorb the water vapor into the airflow under the treatment pressure, so that the water vapor returns to the user end along with the airflow; although it reduces the volume of the whole machine and avoids the phenomenon of condensation in the breathing circuit, this method of using the water vapor exhaled by the user as the humidification source is easily affected by the humidity of the exhaled gas at the user end, the ambient temperature and the moisture adsorption capacity of the materials in the humidification module, resulting in poor humidification effect; at the same time, the materials in the humidification module are prone to mold and breed bacteria after absorbing moisture, and the adsorption materials in the humidification module need to be replaced more frequently to ensure that the user end breathes clean air, which not only increases the user's treatment cost, but also increases the wear of the humidification module while frequently replacing the adsorption material, thereby reducing the overall service life of the humidification module. Summary of the invention

[0005] The present application provides a humidification module for a ventilator to improve the humidification effect of the humidification module, reduce user treatment costs and extend the service life of the humidification module.

[0006] The technical solution adopted in this application is:

[0007] A humidification module for a ventilator, comprising:

[0008] A housing, wherein a chamber is formed inside the housing;

[0009] An air inlet pipe, the air inlet pipe comprising an outer air inlet section located outside the chamber and an inner air inlet section located inside the chamber, the outer air inlet section and the inner air inlet section are connected to each other, an air outlet of the inner air inlet section is at a certain distance from a cavity wall of the chamber, and an air inlet of the air inlet pipe is connected to a breathing circuit;

[0010] An air outlet pipe, the air outlet pipe includes an external air outlet section located outside the chamber and an internal air outlet section located inside the chamber, the external air outlet section and the internal air outlet section are connected to each other, an air inlet of the internal air outlet section is at a certain distance from the cavity wall of the chamber, and an air outlet of the air outlet pipe is connected to a breathing circuit or a breathing mask.

[0011] By adopting the above-mentioned technical scheme, when using the humidification module in the present application, the external air inlet section and the external air outlet section can be connected to two breathing circuits respectively, and the breathing circuit connected to the external air inlet section is connected to the air outlet of the ventilator, and the breathing circuit connected to the external air outlet section is connected to the user end, so that the gas generated by the ventilator enters the chamber through the air inlet pipe, and the gas entering the chamber contacts with the liquid contained in the chamber, so that the liquid contained in the chamber moistens the gas, and the moistened liquid flows to the user end through the air outlet pipe and the breathing circuit to treat the user.

[0012] Since the humidification module in the present application is arranged in the breathing circuit, the overall volume of the respirator is reduced, so that it is convenient for users to carry it outside; and when using the humidification module in the present application, the length of the breathing circuit connected to the user end can be made shorter than the connecting circuit connected to the respirator, or the humidification module can be directly connected to the breathing mask, so that the humidification module is closer to the user end, so as to greatly reduce the phenomenon of condensation water that may appear in the breathing circuit, thereby improving the user experience.

[0013] At the same time, the humidification module in the present application uses the gas generated by the ventilator to directly contact the liquid contained in the chamber to achieve humidification of the gas. Compared with the solution of using water vapor exhaled by the user in the prior art, this method is not affected by the user's own conditions and the environment, thereby greatly improving the humidification effect, thereby greatly improving the user's comfort and improving the user's experience.

[0014] Furthermore, the humidification module in the present application does not need to be provided with adsorption materials, and thus does not need to be replaced, thereby reducing the user's treatment costs, and at the same time avoiding the occurrence of mold and bacteria growth after the adsorption material absorbs water, thereby improving the user's experience; in addition, since the humidification module in the present application does not need to replace its internal components, it also avoids the occurrence of wear and tear of the humidification module due to replacement of its internal components, thereby extending the service life of the humidification module.

[0015] The humidification module in the present application omits the setting of the adsorption material. On the one hand, it can reduce the volume and weight of the humidification module to further achieve the effect of being convenient for users to carry. On the other hand, the humidification module can be cleaned and disinfected separately to greatly extend the service life of the humidification module. The installation position is flexible and the installation method is convenient, which greatly reduces the difficulty of use for users and greatly improves the user experience.

[0016] The air outlet of the inner air inlet section in the present application is at a certain distance from the cavity wall of the chamber, and the air inlet of the inner air outlet section is at a certain distance from the cavity wall of the chamber. Therefore, when the amount of liquid inside the chamber is at the maximum liquid level, the humidification module is rotated to any angle, and the liquid level is lower than the air outlet of the inner air inlet section and the air inlet of the inner air outlet section, so as to avoid the situation where the liquid in the chamber may enter the air inlet pipe or the air outlet pipe, thereby avoiding the situation where the liquid enters the ventilator through the breathing tube and causes the ventilator to malfunction, so as to ensure the service life of the ventilator, and avoid the situation where the liquid enters the user end through the breathing tube, so as to improve the user experience.

[0017] Optionally, a flow guide is provided between the inner air inlet section and the inner air outlet section, and the orthographic projection of the flow guide can cover the air outlet of the inner air inlet section and the air inlet of the inner air outlet section.

[0018] By adopting the above technical scheme, since the guide member is located between the inner air inlet section and the inner air outlet section, and the orthographic projection of the guide member can cover the air outlet of the inner air inlet section and the air inlet of the inner air outlet section, when liquid is added to the chamber through the air inlet pipe or the air outlet pipe, the guide member can block the air inlet of the inner air outlet section or the air outlet of the inner air inlet section. On the one hand, it is avoided that when liquid is added to the chamber through the air inlet pipe, the liquid is directly discharged through the air outlet pipe, and when liquid is added to the chamber through the air outlet pipe, the liquid is directly discharged through the air inlet pipe, so as to greatly reduce the difficulty of adding liquid to the chamber and improve the efficiency of adding liquid to the chamber. On the other hand, when the humidification module rotates, the guide member can also block the air outlet of the inner air inlet section and the air inlet of the inner air outlet section, so as to further avoid the liquid flowing out through the air inlet pipe and the liquid flowing out through the air outlet pipe, thereby further improving the user experience.

[0019] Optionally, the guide member includes a first guide section, the first guide section is a cone, and the cross-sectional area of ​​the cone gradually increases along the liquid inlet direction.

[0020] By adopting the above technical solution, since the first guide section is a cone, and the cross-sectional area of ​​the cone gradually increases along the liquid inlet direction, when liquid is added to the chamber, the cone can guide the liquid so that the liquid quickly falls on the edge of the cone, thereby avoiding the situation where liquid remains on the guide member and flows out through the air inlet pipe or the air outlet pipe when the humidification module rotates, thereby further improving the user experience.

[0021] Optionally, the guide member further includes a second guide segment, and the first guide segment and the second guide segment are symmetrically arranged along the cone bottom surface of the first guide segment.

[0022] By adopting the above technical solution, since the first guide section and the second guide section are symmetrically arranged along the cone bottom surface of the first guide section, when liquid is added to the chamber through either the air inlet pipe or the air outlet pipe, the guide member can guide the liquid to increase the flexibility of adding liquid to the chamber, while reducing the difficulty of adding liquid to the chamber.

[0023] Moreover, the cone whose cross-sectional area gradually increases in the direction of the air outlet away from the inner air inlet section can also guide the gas discharged through the inner air inlet section so that the gas can quickly diffuse around the cone to increase the contact area between the gas and the liquid contained in the chamber, thereby greatly improving the humidification effect of the gas.

[0024] Optionally, connecting ribs are provided in the chamber, and the connecting ribs are used to fix the guide member to the cavity wall of the chamber.

[0025] By adopting the above technical solution, since connecting ribs are provided in the chamber, the connecting ribs can fix the guide member to the cavity wall of the chamber to increase the stability of the guide member and ensure the guide effect of the guide member on the liquid.

[0026] Optionally, the guide member includes drainage ribs arranged on the outer periphery of the guide member, and the drainage ribs are used to guide the liquid to the gap between the inner air inlet section and the chamber wall, and / or the drainage ribs are used to guide the liquid to the gap between the inner air outlet section and the chamber wall.

[0027] By adopting the above technical solution, since the drainage ribs are arranged on the periphery of the guide member, when liquid is added to the chamber, the liquid flows to the position of the drainage ribs under the action of the guide member, and then the drainage ribs guide the liquid to the gap between the inner air inlet section and the chamber wall or guide the liquid to the gap between the inner air outlet section and the chamber wall, so that the liquid quickly falls to the bottom of the chamber, thereby avoiding that when liquid is added to the chamber, the liquid may converge along the outer surface of the lower part of the guide member to the center of the guide member and then flow out from the air inlet pipe or the air outlet pipe, thereby reducing the difficulty of adding liquid to the chamber and ensuring the cleanliness when adding liquid to the chamber, thereby further improving the user experience. In addition, when the humidification module rotates or shakes, the drainage ribs can also block the liquid to further prevent the liquid from entering the air inlet pipe and the air outlet pipe.

[0028] Optionally, the drainage ribs include a plurality of first drainage ribs and a plurality of second drainage ribs extending in a direction opposite to the first drainage ribs, and the plurality of first drainage ribs and the plurality of second drainage ribs are arranged in sequence at intervals and connected to each other.

[0029] By adopting the above technical scheme, since a plurality of first drainage ribs and second drainage ribs are provided, the guiding effect of the drainage ribs on the liquid is increased, so as to further avoid the situation where the liquid may converge along the outer surface of the lower part of the guide member to the center of the guide member and then flow out from the air inlet pipe or the air outlet pipe, thereby further reducing the difficulty of adding liquid to the chamber and further ensuring the cleanliness when adding liquid to the chamber; and the first drainage rib and the second drainage rib are connected to each other, which can improve the structural strength of the drainage ribs to ensure the guiding effect of the drainage ribs on the liquid.

[0030] Optionally, the shell includes at least two outwardly protruding ribs, and the inner air inlet section and the inner air outlet section are respectively located in one of the ribs, and a first liquid storage tank and a second liquid storage tank are respectively formed between the ribs.

[0031] By adopting the above technical scheme, since a first liquid storage tank is formed between the inner air inlet section and one of the convex ribs, and a second liquid storage tank is formed between the inner air outlet section and the other convex rib, the first liquid storage tank or the second liquid storage tank forms the maximum amount of liquid that can be accommodated in the chamber, so that when adding liquid to the chamber, the convex rib can be used as a reference for the user to avoid overflow due to a large amount of liquid added to the chamber. On the one hand, the difficulty of adding liquid to the chamber is reduced, and on the other hand, the liquid is confined to the first liquid storage tank or the second liquid storage tank. The opening of the first liquid storage tank or the second liquid storage tank is smaller, thereby reducing the contact area between the liquid and the air, and the liquid is more affected by surface tension, so it is more difficult for the liquid to overflow from the first liquid storage tank or the second liquid storage tank.

[0032] Optionally, the inner air intake section includes a first extension section extending from the first liquid storage tank, and the first extension section is provided with a plurality of first notches;

[0033] And / or, the inner air outlet section includes a second extension section extending from the second liquid storage tank, and the second extension section is provided with a plurality of second notches.

[0034] By adopting the above technical solution, since the first extension section extends out of the first liquid storage tank and the first extension section is provided with a plurality of first notches, when liquid is added to the chamber through the air outlet pipe, the liquid exceeding the first liquid storage tank can overflow into the air inlet pipe through the first notches and be discharged through the air inlet pipe; and when the humidification device is shaken, the first extension section can block the liquid to prevent the liquid from flowing out through the air inlet pipe.

[0035] Since the second extension section extends out of the second liquid storage tank and is provided with a plurality of second notches, when the air inlet pipe fills the chamber with liquid, the liquid exceeding the second liquid storage tank can overflow into the air outlet pipe through the second notches and be discharged through the air outlet pipe; and when the humidification device is shaken, the second extension section can block the liquid to prevent the liquid from flowing out through the air outlet pipe.

[0036] Optionally, the air inlet pipe and the air outlet pipe are coaxially arranged.

[0037] By adopting the above technical solution, since the air inlet pipe and the air outlet pipe are coaxially arranged, the stability of the humidification module is increased when the gas flows through the humidification module. At the same time, the connection position of the humidification module and the ventilator is made coaxial to avoid the humidification module from being easily deflected, thereby increasing the stability of the humidification module.

[0038] Optionally, the outer air inlet section is coaxially arranged with the outer air outlet section, and the air outlet of the inner air inlet section is staggered with the air inlet of the inner air outlet section.

[0039] By adopting the above technical solution, since the air outlet of the inner air inlet section and the air inlet of the inner air outlet section are staggered, it is avoided that when liquid is added to the chamber through the air inlet pipe or the air outlet pipe, the liquid is directly discharged through the air outlet pipe or the air inlet pipe, thereby greatly reducing the difficulty of adding liquid to the chamber and improving the efficiency of adding liquid to the chamber.

[0040] Optionally, one side wall of the inner air intake section extends obliquely toward the other side wall, so that the radial area of ​​the inner air intake section gradually decreases along the air intake direction;

[0041] One side wall of the inner air outlet section extends obliquely toward the other side wall, so that the radial area of ​​the inner air outlet section gradually increases along the air outlet direction.

[0042] By adopting the above technical solution, since one side wall of the inner air inlet section extends obliquely toward the other side wall, and one side wall of the inner air outlet section extends obliquely toward the other side wall, the air outlet of the inner air inlet section and the air inlet of the inner air outlet section are staggered. Moreover, when liquid is added to the chamber through the air inlet pipe or the air outlet pipe, the obliquely arranged wall of the inner air outlet section can guide the liquid or the obliquely arranged wall of the inner air inlet section can guide the liquid, so that the liquid flows quickly to the bottom of the chamber. At the same time, the obliquely arranged wall of the inner air outlet section can block and guide the gas flowing out through the inner air inlet section, so that the gas is dispersed, thereby increasing the contact area between the gas and the liquid contained in the chamber, thereby improving the humidification effect.

[0043] Optionally, the air inlet pipe and the air outlet pipe are located on the same side of the shell.

[0044] By adopting the above technical solution, since the air inlet pipe and the air outlet pipe are located on the same side of the shell, it is further avoided that when liquid is added to the chamber through the air inlet pipe or the air outlet pipe, the liquid is directly discharged through the air outlet pipe or the air inlet pipe, thereby further reducing the difficulty of adding liquid to the chamber and further improving the effect of adding liquid to the chamber; at the same time, it can also increase the flow path of the gas in the chamber to increase the wetting effect on the gas, thereby improving the humidification effect of the humidification module.

[0045] Optionally, the air inlet pipe and the air outlet pipe are respectively located on opposite sides of the shell, the shell has a midline parallel to the central axis of the air inlet pipe, and the air inlet pipe and the air outlet pipe are respectively located on both sides of the midline, so that the air outlet of the air inlet pipe is staggered with the air inlet of the air outlet pipe.

[0046] By adopting the above technical scheme, since the air inlet pipe and the air outlet pipe are divided into two sides located at the midline, the air outlet of the air inlet pipe and the air inlet of the air outlet pipe are staggered. On the one hand, it can avoid the situation where when liquid is added to the chamber through the air inlet pipe or the air outlet pipe, the liquid is directly discharged through the air outlet pipe or the air inlet pipe, thereby reducing the difficulty of adding liquid to the chamber and improving the effect of adding liquid to the chamber; at the same time, it can also increase the flow path of the gas in the chamber to increase the wetting effect on the gas, thereby improving the humidification effect of the humidification module.

[0047] Optionally, an angle θ is formed between a central axis of the air inlet pipe and a central axis of the air outlet pipe, and the angle θ satisfies: 30°≤θ≤90°.

[0048] By adopting the above technical solution, if the angle formed between the central axis of the air inlet pipe and the central axis of the air outlet pipe is less than 30°, on the one hand, it will cause the diameters of the air inlet pipe and the air outlet pipe to be smaller, thereby affecting the gas passage efficiency and the treatment efficiency for the user. On the other hand, it will cause the space between the external air inlet section and the external air outlet section to be smaller, thereby increasing the difficulty for the user to connect the humidification module to the breathing circuit, user end or ventilator, thereby affecting the user's experience.

[0049] If the angle formed between the central axis of the air inlet pipe and the central axis of the air outlet pipe is greater than 90°, when liquid is added to the chamber through the air inlet pipe, the projection of the air inlet pipe in the plumb direction may overlap with the air outlet pipe, so that the liquid may be discharged directly through the air outlet pipe, increasing the difficulty of adding liquid to the chamber; or when liquid is added to the chamber through the air outlet pipe, the projection of the air outlet pipe in the plumb direction may overlap with the air inlet pipe, so that the liquid may be discharged directly through the air inlet pipe, increasing the difficulty of adding liquid to the chamber.

[0050] In the present application, the angle formed between the central axis of the air inlet pipe and the central axis of the air outlet pipe is limited to greater than or equal to 30° and less than or equal to 90°. On the one hand, it ensures the treatment effect on the user and reduces the difficulty of connecting the humidification module with the breathing circuit, user end or ventilator; on the other hand, it reduces the difficulty of adding liquid to the chamber.

[0051] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0052] 1. The humidification module in the present application includes a shell, an air inlet pipe and an air outlet pipe, a chamber is formed inside the shell, the air inlet pipe includes an outer air inlet section located outside the chamber and an inner air inlet section located inside the chamber, the outer air inlet section and the inner air inlet section are connected to each other, the air outlet of the inner air inlet section is at a certain distance from the cavity wall of the chamber, the air outlet pipe includes an outer air outlet section located outside the chamber and an inner air outlet section located inside the chamber, the outer air outlet section and the inner air outlet section are connected to each other, the air inlet of the inner air outlet section is at a certain distance from the cavity wall of the chamber, and then compared with the solution of utilizing the water vapor exhaled by the user in the prior art, this method is not affected by the user's own situation and the influence of the environment, thereby greatly improving the humidification effect, greatly improving the user's comfort and improving the user's experience; the humidification module in the present application does not need to be set with adsorption materials, and there is no need to replace the adsorption materials, which reduces the user's treatment costs, and at the same time avoids the adsorption materials from getting moldy and breeding bacteria after absorbing water, thereby improving the user's experience; in addition, since the humidification module in the present application does not need to replace its internal components, it also avoids the wear of the humidification module due to replacement of its internal components, thereby extending the service life of the humidification module.

[0053] 2. A flow guide is provided between the inner air inlet section and the inner air outlet section in the present application, and the orthographic projection of the flow guide can cover the air outlet of the inner air inlet section and the air inlet of the inner air outlet section. Subsequently, when liquid is added to the chamber through the air inlet pipe or the air outlet pipe, the flow guide can block the air inlet of the inner air outlet section or the air outlet of the inner air inlet section. On the one hand, it is avoided that when liquid is added to the chamber through the air inlet pipe, the liquid is directly discharged through the air outlet pipe, and when liquid is added to the chamber through the air outlet pipe, the liquid is directly discharged through the air inlet pipe, so as to greatly reduce the difficulty of adding liquid to the chamber and improve the efficiency of adding liquid to the chamber; on the other hand, when the humidification module rotates, the flow guide can also block the air outlet of the inner air inlet section and the air inlet of the inner air outlet section, so as to further avoid the situation that liquid flows out through the air inlet pipe and the situation that liquid flows out through the air outlet pipe, thereby further improving the user experience.

[0054] 3. The guide member in the present application includes a first guide section, which is a cone. The cross-sectional area of ​​the cone gradually increases along the liquid inlet direction, so that when liquid is added to the chamber, the cone can guide the liquid so that the liquid falls quickly on the edge of the cone, thereby avoiding the liquid remaining on the guide member and flowing out through the air inlet pipe or the air outlet pipe when the humidification module rotates, thereby further improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0056] Figure 1 is a cross-sectional view of the humidification module in this application;

[0057] Figure 2 This is a schematic diagram of filling liquid into the chamber of the humidification module in the present application, in which the black arrow indicates the flow direction of the liquid, and the dotted line indicates the liquid;

[0058] Figure 3 The humidification module in this application is composed of Figure 2 The cross-sectional view after the state in FIG. is rotated 45° to the right, and the dotted line in the figure represents the liquid;

[0059] Figure 4 The humidification module in this application is composed of Figure 2 The cross-sectional view after the state in the figure is rotated 90° to the right. The black arrow in the figure indicates the flow direction of the gas, and the dotted line indicates the liquid;

[0060] Figure 5 A cross-sectional view of a humidification module provided with ribs in the present application;

[0061] Figure 6 This is a cross-sectional view of the structure of the humidification module provided with convex ribs in the present application from another perspective, in which the black arrow indicates the flow direction of the gas, and the dotted line indicates the liquid;

[0062] Figure 7 For the humidification module in the application Figure 6 The cross-sectional view after the state in is rotated 45° to the right, and the dotted line in the figure represents the liquid;

[0063] Figure 8 The humidification module in this application is composed of Figure 6 The cross-sectional view after the state in is rotated 90° to the right, and the dotted line in the figure represents the liquid;

[0064] Fig. 9 This is a structural cross-sectional view of the humidification module in this application, mainly showing the relationship between the connecting ribs and the drainage ribs;

[0065] Fig.10 This is a structural schematic diagram of the humidification module when the air outlet of the inner air inlet section and the air inlet of the inner air outlet section are arranged in a staggered manner in this application;

[0066] Fig.11 This is a schematic diagram of the structure of the humidification module when the air inlet pipe and the air outlet pipe are located on the same side of the shell in this application;

[0067] Fig.12 This is a schematic diagram of the structure of the humidification module when the air inlet pipe and the air outlet pipe are located on both sides of the midline in this application;

[0068] Fig.13 This is a schematic diagram of the structure of the humidification module when the air inlet pipe and the air outlet pipe are arranged at an angle in the present application, wherein the dotted line in the figure represents liquid.

[0069] Reference numerals:

[0070] 1. shell; 11. chamber; 111. connecting rib; 12. convex rib;

[0071] 2. air intake pipe; 21. outer air intake section; 22. inner air intake section; 221. first liquid storage tank; 222. first extension section; 223. first notch;

[0072] 3. air outlet pipe; 31. external air outlet section; 32. internal air outlet section; 321. second liquid storage tank; 322. second extension section; 323. second notch;

[0073] 4. Flow guide; 41. First flow guide section; 42. Second flow guide section; 43. Drainage rib. DETAILED DESCRIPTION

[0074] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0075] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0076] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0077] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0078] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0079] Reference Figures 1 to 13, discloses a humidification module for a ventilator, which includes a shell 1, an air inlet pipe 2 and an air outlet pipe 3, wherein a chamber 11 is formed inside the shell 1; the air inlet pipe 2 includes an outer air inlet section 21 located outside the chamber 11 and an inner air inlet section 22 located inside the chamber 11, the outer air inlet section 21 and the inner air inlet section 22 are connected to each other, the air outlet of the inner air inlet section 22 is at a certain distance from the cavity wall of the chamber 11, and the air inlet of the air inlet pipe 2 is connected to a breathing circuit; the air outlet pipe 3 includes an outer air outlet section 31 located outside the chamber 11 and an inner air outlet section 32 located inside the chamber 11, the outer air outlet section 31 and the inner air outlet section 32 are connected to each other, the air inlet of the inner air outlet section 32 is at a certain distance from the cavity wall of the chamber 11, and the air outlet of the air outlet pipe 3 is connected to a breathing circuit or a breathing mask.

[0080] It should be noted that the above-mentioned “the air outlet of the inner air inlet section 22 is at a certain distance from the cavity wall of the chamber 11” means that the air outlet of the inner air inlet section 22 is at a certain distance from each location of the chamber 11, that is, the air outlet of the inner air inlet section 22 is located on a non-side of the chamber 11; “the air inlet of the inner air outlet section 32 is at a certain distance from the cavity wall of the chamber 11” means that the air inlet of the inner air outlet section 32 is at a certain distance from each location of the chamber 11, that is, the air outlet of the inner air outlet section 32 is located on a non-side of the chamber 11.

[0081] When using the humidification module in the present application, the external air inlet section 21 and the external air outlet section 31 can be connected to two breathing circuits respectively, and the breathing circuit connected to the external air inlet section 21 is connected to the air outlet of the ventilator, and the breathing circuit connected to the external air outlet section 31 is connected to the user end, so that the gas generated by the ventilator enters the chamber 11 through the air inlet pipe 2, and the gas entering the chamber 11 contacts the liquid contained in the chamber 11, so that the liquid contained in the chamber 11 moistens the gas, and the moistened liquid flows to the user end through the air outlet pipe 3 and the breathing circuit to treat the user.

[0082] Of course, when using the humidification module in the present application, the external air outlet section 31 can also be directly connected to the breathing mask at the user end, or the external air inlet section 21 can be directly connected to the ventilator. The humidification module in the present application can also be used as a separate component to match a variety of ventilators without humidification function to increase the flexibility of the humidification module.

[0083] Since the humidification module in the present application is arranged in the breathing circuit, the overall volume of the respirator is reduced, so that it is convenient for users to carry it outside; and when using the humidification module in the present application, the length of the breathing circuit connected to the user end can be made shorter than the connecting circuit connected to the respirator, or the humidification module can be directly connected to the breathing mask, so that the humidification module is closer to the user end, so as to greatly reduce the phenomenon of condensation water that may appear in the breathing circuit, thereby improving the user experience.

[0084] At the same time, the humidification module in the present application uses the gas generated by the ventilator to directly contact the liquid contained in the chamber 11 to achieve humidification of the gas. Compared with the solution of using water vapor exhaled by the user in the prior art, this method is not affected by the user's own conditions and the environment, thereby greatly improving the humidification effect and increasing the stability of the humidification effect, thereby greatly improving the user's comfort and improving the user's experience.

[0085] Furthermore, the humidification module in the present application does not need to be provided with adsorption materials, and thus does not need to be replaced, thereby reducing the user's treatment costs, and at the same time avoiding the occurrence of mold and bacteria growth after the adsorption material absorbs water, thereby improving the user's experience; in addition, since the humidification module in the present application does not need to replace its internal components, it also avoids the occurrence of wear and tear of the humidification module due to replacement of its internal components, thereby extending the service life of the humidification module.

[0086] In addition, the humidification module in the present application omits the setting of the adsorption material, which can reduce the volume and weight of the humidification module on the one hand, so as to further achieve the effect of being convenient for users to carry; on the other hand, the humidification module can be cleaned and disinfected separately, so as to greatly extend the service life of the humidification module; and the installation position is flexible and the installation method is convenient, so as to greatly reduce the difficulty of use for users and greatly improve the use experience.

[0087] The air outlet of the inner air inlet section 22 in the present application is at a certain distance from the cavity wall of the chamber 11, and the air inlet of the inner air outlet section 32 is at a certain distance from the cavity wall of the chamber 11. Therefore, when the amount of liquid inside the chamber 11 is at the maximum liquid level, the humidification module is rotated to any angle, and the liquid level is lower than the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32, so as to avoid the liquid in the chamber 11 from entering the air inlet pipe 2 or the air outlet pipe 3, thereby avoiding the situation where the liquid enters the ventilator through the breathing tube and causes the ventilator to malfunction, so as to ensure the service life of the ventilator, and avoid the situation where the liquid enters the user end through the breathing tube, so as to improve the user experience.

[0088] It should be noted that the humidification module of the present application may or may not have a heating function. As a preferred embodiment, the humidification module in the present application does not have a heating function, and it is not electrically connected to the mainframe of the ventilator, so as to further reduce the volume and weight of the humidification module, thereby further achieving the effect of being easy to carry.

[0089] The present application does not specifically limit the shape of the shell 1, which may be a square with rounded corners, a sphere, a cylinder, an elliptical cylinder, or other shapes.

[0090] In a preferred embodiment, referring to Figures 1 to 4 A guide member 4 is provided between the inner air inlet section 22 and the inner air outlet section 32, and the orthographic projection of the guide member 4 can cover the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32. Then, when liquid is added to the chamber 11 through the air inlet pipe 2 or the air outlet pipe 3, the guide member 4 can block the air inlet of the inner air outlet section 32 or the air outlet of the inner air inlet section 22, which avoids the situation that the liquid is directly discharged through the air outlet pipe 3 when the liquid is added to the chamber 11 through the air inlet pipe 2, and avoids the situation that the liquid is directly discharged through the air outlet pipe 3 through the air outlet pipe 3. When liquid is added to the chamber 11, the liquid is directly discharged through the air inlet pipe 2, which greatly reduces the difficulty of adding liquid to the chamber 11 and improves the efficiency of adding liquid to the chamber 11; on the other hand, when the humidification module rotates, the guide member 4 can also block the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32, so as to further avoid the liquid from flowing out through the air inlet pipe 2 and the liquid from flowing out through the air outlet pipe 3, thereby further improving the user experience.

[0091] Furthermore, the flow guide 4 can also block the gas to increase the flow path of the gas in the chamber 11, making the flow path of the gas in the chamber 11 more tortuous, thereby increasing the wetting effect on the gas and further improving the humidification effect of the humidification module.

[0092] Specifically, Figure 2 The placement position of the humidification module shown in the figure is taken as the first position. At this time, the internal cross-sectional view of the humidification tank when the liquid level reaches the maximum is as shown in FIG. Figure 2 The humidification module is rotated 45° to the right from the first position to obtain a humidification module as shown in FIG. Figure 3 As shown, after rotating 90° to the right, the cross-sectional view of the humidification module is as follows Figure 4 As shown, it can be seen from the above figure that when the liquid is at the maximum liquid level, the humidification module is rotated at any angle, and the liquid level is lower than the height of the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32.

[0093] The present application does not specifically limit the structure of the flow guide 4. Preferably, refer to Figures 1 to 4 The guide member 4 includes a first guide section 41, which is a cone. The cross-sectional area of ​​the cone gradually increases along the liquid inlet direction. When liquid is added to the chamber 11, the cone can guide the liquid so that the liquid falls quickly on the edge of the cone, thereby preventing liquid from remaining on the guide member 4 and flowing out through the air inlet pipe 2 or the air outlet pipe 3 when the humidification module rotates, thereby further improving the user experience.

[0094] Furthermore, the guide member 4 also includes a second guide section 42, and the first guide section 41 and the second guide section 42 are symmetrically arranged along the cone bottom surface of the first guide section 41. It can be understood that the first guide section 41 is arranged corresponding to the air outlet of the inner air inlet section 22, and the second guide section 42 is arranged corresponding to the air inlet of the inner air outlet section 32. Then, when liquid is added to the chamber 11 through either the air inlet pipe 2 or the air outlet pipe 3, the guide member 4 can guide the liquid to increase the flexibility of adding liquid to the chamber 11, while reducing the difficulty of adding liquid to the chamber 11.

[0095] Moreover, the cone whose cross-sectional area gradually increases in the direction of the air outlet away from the inner air inlet section 22 can also guide the gas discharged through the inner air inlet section 22 so that the gas can quickly diffuse around the cone, thereby increasing the contact area between the gas and the liquid contained in the chamber 11, thereby greatly improving the humidification effect on the gas.

[0096] Preferably, the first guide section 41 is coaxially arranged with the air inlet pipe 2 , and the cone bottom area of ​​the first guide section 41 is larger than the air outlet of the air inlet pipe 2 .

[0097] In other embodiments, the flow guide 4 may also be a plate-shaped structure.

[0098] In a preferred embodiment, referring to Figure 3 and Figure 4 A connecting rib 111 is provided in the chamber 11, and the connecting rib 111 is used to fix the guide member 4 to the cavity wall of the chamber 11, that is, the end of the connecting rib 111 away from the guide member 4 is fixedly connected to the cavity wall of the chamber 11, and the end of the connecting rib 111 close to the guide member 4 is fixedly connected to the guide member 4, so as to increase the stability of the guide member 4 and ensure the guiding effect of the guide member 4 on the liquid.

[0099] Preferably, a plurality of connecting ribs 111 are arranged at intervals along the circumference of the guide member 4 to further increase the stability of the guide member 4. At the same time, the cooperation between the connecting ribs 111 and the guide member 4 can also support the wall of the shell 1 to increase the structural strength of the shell 1.

[0100] The present application does not specifically limit the structure of the connecting rib 111. Preferably, refer to Figure 3 The connecting rib 111 is a wall structure with a certain thickness and is arranged parallel to the liquid inlet direction of the chamber 11 to ensure the flow area between the cavity wall of the chamber 11 and the peripheral side of the flow guide 4, and the width of the connecting rib 111 at the end away from the flow guide 4 is greater than the width of the connecting rib 111 at the end close to the flow guide 4 to increase the fixing stability of the flow guide 4. In other implementation examples, the connecting rib 111 can also be a block structure or a rod structure arranged in the chamber 11.

[0101] In a preferred embodiment, referring to Figure 4The guide member 4 includes a guide rib 43 arranged on the outer periphery of the guide member 4, and the guide rib 43 is used to guide the liquid to the gap between the inner air inlet section 22 and the wall of the chamber 11, and / or the guide rib 43 is used to guide the liquid to the gap between the inner air outlet section 32 and the wall of the chamber 11.

[0102] Specifically, the drainage rib 43 is arranged on the outer periphery of the first guide section 41 and the second guide section 42. Then, when liquid is added to the chamber 11, the liquid flows to the position of the drainage rib 43 under the action of the first guide section 41 or the second guide section 42, and then the drainage rib 43 guides the liquid to the gap between the inner air inlet section 22 and the wall of the chamber 11 or guides the liquid to the gap between the inner air outlet section 32 and the wall of the chamber 11, so that the liquid quickly falls to the bottom of the chamber 11, thereby avoiding that when liquid is added to the chamber 11, the liquid may converge along the outer surface of the lower part of the guide member 4 to the center of the guide member 4 and then flow out from the air inlet pipe 2 or the air outlet pipe 3, thereby reducing the difficulty of adding liquid to the chamber 11 and ensuring the cleanliness when adding liquid to the chamber 11, thereby further improving the user experience. In addition, when the humidification module rotates or shakes, the drainage ribs 43 can also block the liquid to further prevent the liquid from entering the air inlet pipe 2 and the air outlet pipe 3.

[0103] In this embodiment, the connection relationship between the connecting rib 111 and the drainage rib 43 is not specifically limited. Figure 5 The drainage rib 43 is located between two adjacent connecting ribs 111 and the two ends of the drainage rib 43 are respectively fixedly connected to the two connecting ribs 111 to increase the structural strength of the connecting ribs 111 and the drainage rib 43. In other embodiments, the middle of the drainage rib 43 in the length direction may be fixedly connected to the connecting rib 111; or the drainage rib 43 and the connecting rib 111 have no direct connection relationship, that is, there is a gap between the drainage rib 43 and the connecting rib 111.

[0104] Further, refer to Figure 4 The drainage ribs 43 include a plurality of first drainage ribs and a plurality of second drainage ribs extending in the opposite direction to the first drainage ribs. The plurality of first drainage ribs and the plurality of second drainage ribs are arranged in sequence and are connected to each other.

[0105] It can be understood that the first drainage rib is located on the side of the guide member 4 close to the air inlet pipe 2 compared to the second drainage rib, so that when liquid is added to the chamber 11 through the air inlet pipe 2, the first drainage rib can guide the liquid to the gap between the inner air outlet section 32 and the wall of the chamber 11; the second drainage rib is located on the side of the guide member 4 close to the air outlet pipe 3 compared to the first drainage rib, so that when liquid is added to the chamber 11 through the air outlet pipe 3, the second drainage rib can guide the liquid to the gap between the inner air inlet section 22 and the wall of the chamber 11.

[0106] Since a plurality of first drainage ribs and second drainage ribs are provided, the guiding effect of the drainage ribs 43 on the liquid is increased, so as to prevent the liquid from converging along the outer surface of the lower portion of the guide member 4 to the center of the guide member 4 and then flowing out from the air inlet pipe 2 or the air outlet pipe 3, thereby further reducing the difficulty of adding liquid to the chamber 11 and further ensuring the cleanliness when adding liquid to the chamber 11; and the first drainage ribs and the second drainage ribs are connected to each other, which can improve the structural strength of the drainage ribs 43 to ensure the guiding effect of the drainage ribs 43 on the liquid.

[0107] Better, refer to Figure 4 The first drainage ribs and the second drainage ribs are staggered in the circumferential direction of the flow guide 4, that is, there is a second drainage rib between two adjacent first drainage ribs, and there is a first drainage rib between two adjacent second drainage ribs.

[0108] In a preferred embodiment, referring to Figure 4 The shell 1 includes at least two outwardly protruding ribs 12, and the inner air inlet section 22 and the inner air outlet section 32 are respectively located in one of the ribs 12, and a first liquid storage tank 221 and a second liquid storage tank 321 are respectively formed between the ribs 12.

[0109] It can be understood that the inner air inlet section 22 and the inner air outlet section 32 are respectively arranged in a one-to-one correspondence with the two convex ribs 12 .

[0110] Specifically, the shell 1 where the air inlet end of the humidification module is located is called the first end wall, and the shell 1 where the air outlet end is located is called the second end wall. The two ribs 12 are formed by protruding toward the outside of the chamber 11 by partial areas of the first end wall and partial areas of the second end wall, respectively. That is, the radial cross-sectional area of ​​the rib 12 is smaller than the radial cross-sectional area of ​​the shell 1.

[0111] When the air inlet pipe 2 and the air outlet pipe 3 are respectively located on opposite sides of the shell 1, the first liquid reservoir 221 or the second liquid reservoir 321 forms the maximum amount of liquid that can be accommodated in the chamber 11, so that the rib 12 can be used as a reference for the user when adding liquid to the chamber 11 to avoid overflow due to a large amount of liquid added to the chamber 11. On the one hand, the difficulty of adding liquid to the chamber 11 is reduced, and on the other hand, the liquid is confined to the first liquid reservoir 221 or the second liquid reservoir 321. The opening of the first liquid reservoir 221 or the second liquid reservoir 321 is smaller, thereby reducing the area of ​​contact between the liquid and the air, and thereby making the liquid more affected by surface tension. Therefore, it is more difficult for the liquid to overflow from the first liquid reservoir 221 or the second liquid reservoir 321.

[0112] It should be noted that the maximum amount of liquid that can be contained in the chamber 11 mentioned in the present application does not refer to the maximum capacity of the chamber 11, but refers to the maximum capacity at which the liquid cannot enter the air inlet pipe 2 and the air outlet pipe 3 when the humidification module rotates at any angle.

[0113] In this embodiment, Figure 6 The placement position of the humidification module shown in the figure is taken as the initial position. At this time, the internal cross-sectional view of the humidification module when the maximum liquid level is reached is as shown in FIG. Figure 6 As shown, the cross-sectional view of the humidification module obtained by rotating the humidification module 45° to the right from the initial orientation is as follows Figure 7 As shown, the cross-sectional view of the humidification module obtained by rotating 90° to the right is as follows Figure 8 As shown, it can be seen from the above figure that when the liquid is at the maximum liquid level, the liquid level of the liquid is lower than the height of the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32 by rotating the humidification tank at any angle.

[0114] Further, see Figure 4 The inner air inlet section 22 includes a first extension section 222 extending from the first liquid storage tank 221. The first extension section 222 is provided with a plurality of first notches 223. When liquid is then added to the chamber 11 through the air outlet pipe 3, the liquid exceeding the first liquid storage tank 221 can overflow into the air inlet pipe 2 through the first notches 223 and be discharged through the air inlet pipe 2. When the humidification device is shaken, the first extension section 222 can block the liquid to prevent the liquid from flowing out through the air inlet pipe 2.

[0115] Further, see Figure 4 The inner air outlet section 32 includes a second extension section 322 extending from the second liquid storage tank 321. The second extension section 322 is provided with a plurality of second notches 323, so that when the air inlet pipe 2 adds liquid into the chamber 11, the liquid exceeding the second liquid storage tank 321 can overflow into the air outlet pipe 3 through the second notches 323 and be discharged through the air outlet pipe 3; and when the humidification device is shaken, the second extension section 322 can block the liquid to prevent the liquid from flowing out through the air outlet pipe 3.

[0116] In this embodiment, the positional relationship between the air inlet pipe 2 and the air outlet pipe 3 is not specifically limited. Figures 1 to 4 The air inlet pipe 2 and the air outlet pipe 3 are coaxially arranged, thereby increasing the stability of the humidification module when the gas flows through the humidification module. At the same time, the connection position of the humidification module and the ventilator is made coaxial to avoid the humidification module from being easily deflected, thereby increasing the stability of the humidification module.

[0117] In other embodiments, the air inlet pipe 2 and the air outlet pipe 3 may be arranged at an angle or their central axes may be arranged in parallel and at intervals.

[0118] In a preferred embodiment, referring to Figure 6 The outer air inlet section 21 is coaxially arranged with the outer air inlet section 31, and the air outlet of the inner air inlet section 22 is staggered with the air inlet of the inner air outlet section 32, thereby avoiding the situation where the liquid is directly discharged through the air outlet pipe 3 or the air inlet pipe 2 when the liquid is added to the chamber 11 through the air inlet pipe 2 or the air outlet pipe 3, thereby greatly reducing the difficulty of adding liquid to the chamber 11 and improving the efficiency of adding liquid to the chamber 11.

[0119] The present application does not make any specific limitation on the manner in which the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32 are offset. Preferably, one side wall of the inner air inlet section 22 extends obliquely toward the other side wall, thereby gradually reducing the radial area of ​​the inner air inlet section 22 along the air inlet direction; one side wall of the inner air outlet section 32 extends obliquely toward the other side wall, thereby gradually increasing the radial area of ​​the inner air outlet section 32 along the air outlet direction, thereby achieving the offset setting of the air outlet of the inner air inlet section 22 and the air inlet of the inner air outlet section 32.

[0120] Furthermore, when liquid is added to the chamber 11 through the air inlet pipe 2 or the air outlet pipe 3, the inclined wall of the inner air outlet section 32 can guide the liquid or the inclined wall of the inner air inlet section 22 can guide the liquid so that the liquid quickly flows to the bottom of the chamber 11. At the same time, the inclined wall of the inner air outlet section 32 can block and guide the gas flowing out through the inner air inlet section 22 so that the gas is dispersed, thereby increasing the contact area between the gas and the liquid contained in the chamber 11, thereby improving the humidification effect.

[0121] In other embodiments, the inner air inlet section 22 is arranged at an angle with the outer air inlet section 21 and / or the inner air outlet section 32 is arranged at an angle with the outer air outlet section 31; or, the end of the inner air inlet section 22 away from the outer air inlet section 21 is bent and / or the end of the inner air outlet section 32 away from the outer air outlet section 31 is bent, so that the air outlet of the inner air inlet section 22 is misaligned with the air inlet of the inner air outlet section 32.

[0122] In a preferred embodiment, referring to Figure 7 The air inlet pipe 2 and the air outlet pipe 3 are located on the same side of the shell 1, thereby further avoiding the situation where the liquid is directly discharged through the air outlet pipe 3 or the air inlet pipe 2 when the liquid is added to the chamber 11 through the air inlet pipe 2 or the air outlet pipe 3, so as to further reduce the difficulty of adding liquid to the chamber 11 and further improve the effect of adding liquid to the chamber 11; at the same time, it can also increase the flow path of the gas in the chamber 11 to increase the wetting effect of the gas, thereby improving the humidification effect of the humidification module.

[0123] In this embodiment, preferably, the central axis of the air inlet pipe 2 and the central axis of the air outlet pipe 3 are arranged in parallel and spaced apart to increase the flow path of the gas in the chamber 11 and improve the humidification effect of the humidification module.

[0124] In a preferred embodiment, referring to Figure 8 The air inlet pipe 2 and the air outlet pipe 3 are respectively located on opposite sides of the shell 1. The shell 1 has a midline parallel to the central axis of the air inlet pipe 2. The air inlet pipe 2 and the air outlet pipe 3 are located on both sides of the midline so that the air outlet of the air inlet pipe 2 and the air inlet of the air outlet pipe 3 are staggered.

[0125] Since the air inlet pipe 2 and the air outlet pipe 3 are divided into two sides located at the midline, the air outlet of the air inlet pipe 2 and the air inlet of the air outlet pipe 3 are staggered. On the one hand, it can avoid the situation where the liquid is directly discharged through the air outlet pipe 3 or the air inlet pipe 2 when the liquid is added to the chamber 11 through the air inlet pipe 2 or the air outlet pipe 3, thereby reducing the difficulty of adding liquid to the chamber 11 and improving the effect of adding liquid to the chamber 11; at the same time, it can also increase the flow path of the gas in the chamber 11 to increase the wetting effect on the gas, thereby improving the humidification effect of the humidification module.

[0126] In this embodiment, preferably, the air inlet pipe 2 and the air outlet pipe 3 are arranged in parallel to ensure the effect of adding liquid into the chamber 11. Of course, in other embodiments, the air inlet pipe 2 and the air outlet pipe 3 can also be arranged at an angle.

[0127] In a preferred embodiment, referring to Fig. 9 , an angle θ is formed between the central axis of the air inlet pipe 2 and the central axis of the air outlet pipe 3, and the angle θ satisfies: 30°≤θ≤90°.

[0128] If the angle formed between the central axis of the air inlet pipe 2 and the central axis of the air outlet pipe 3 is less than 30°, on the one hand, it will cause the diameters of the air inlet pipe 2 and the air outlet pipe 3 to be smaller, thereby affecting the gas passage efficiency and the treatment efficiency for the user. On the other hand, it will cause the space between the external air inlet section 21 and the external air outlet section 31 to be smaller, thereby increasing the difficulty for the user to connect the humidification module to the breathing circuit, user end or ventilator, thereby affecting the user's experience.

[0129] If the angle formed between the central axis of the air inlet pipe 2 and the central axis of the air outlet pipe 3 is greater than 90°, when liquid is added to the chamber 11 through the air inlet pipe 2, the projection of the air inlet pipe 2 in the plumb direction may overlap with the air outlet pipe 3, so that the liquid may be discharged directly through the air outlet pipe 3, thereby increasing the difficulty of adding liquid to the chamber 11; or when liquid is added to the chamber 11 through the air outlet pipe 3, the projection of the air outlet pipe 3 in the plumb direction may overlap with the air inlet pipe 2, thereby increasing the difficulty of adding liquid to the chamber 11.

[0130] In the present application, the angle formed between the central axis of the air inlet pipe 2 and the central axis of the air outlet pipe 3 is limited to greater than or equal to 30° and less than or equal to 90°. On the one hand, it ensures the treatment effect on the user and reduces the difficulty of connecting the humidification module with the breathing circuit, user end or ventilator; on the other hand, it reduces the difficulty of adding liquid to the chamber 11.

[0131] In this embodiment, preferably, the central axis of the air inlet pipe 2 is perpendicular to the central axis of the air outlet pipe 3, that is, the angle θ formed between the central axis of the air inlet pipe 2 and the central axis of the air outlet pipe 3 is equal to 90°, so as to increase the distance between the outer air inlet section 21 and the outer air outlet section 31, so as to facilitate the connection of the humidification module to the ventilator, the user end or the breathing circuit.

[0132] The present application does not specifically limit the material of the humidification module. Preferably, the humidification module is made of a transparent material, such as an acrylic material or a transparent PET material, so that the user can observe the amount of liquid in the chamber 11 at any time. In other embodiments, the humidification module can also be made of other non-transparent materials.

[0133] In a preferred embodiment, the housing 1 is provided with a maximum liquid level line, and then when liquid is added to the chamber 11 , the maximum liquid level line can serve as a reference warning to the user, so that the user can add an appropriate amount of liquid to the chamber 11 .

[0134] It should be noted that there are two ways to add liquid to the chamber 11, namely through the air inlet pipe 2 and the air outlet pipe 3; and the maximum liquid level line in the present application can be set with two groups for the two ways of adding liquid, so that the user has a reference when adding water to the chamber 11 through any method, or a group of maximum liquid level lines is set corresponding to any method.

[0135] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0136] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0137] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A humidification module for a ventilator, characterized in that: include: A housing (1), wherein a chamber (11) is formed inside the housing (1); an air intake pipe (2), the air intake pipe (2) comprising an outer air intake section (21) located outside the chamber (11) and an inner air intake section (22) located inside the chamber (11), the outer air intake section (21) and the inner air intake section (22) being connected to each other, an air outlet of the inner air intake section (22) being at a certain distance from a cavity wall of the chamber (11), and an air intake of the air intake pipe (2) being connected to a breathing circuit; An air outlet pipe (3), the air outlet pipe (3) comprising an outgoing air outlet section (31) located outside the chamber (11) and an inner air outlet section (32) located inside the chamber (11), the outgoing air outlet section (31) and the inner air outlet section (32) being connected to each other, an air inlet of the inner air outlet section (32) being at a certain distance from a cavity wall of the chamber (11), and an air outlet of the air outlet pipe (3) being connected to a breathing tube or a breathing mask.

2. A humidification module for a ventilator according to claim 1, characterized in that: A flow guide (4) is provided between the inner air inlet section (22) and the inner air outlet section (32), and the orthographic projection of the flow guide (4) can cover the air outlet of the inner air inlet section (22) and the air inlet of the inner air outlet section (32).

3. A humidification module for a ventilator according to claim 2, characterized in that: The flow guide member (4) comprises a first flow guide section (41), the first flow guide section (41) is a cone, and the cross-sectional area of ​​the cone gradually increases along the liquid inlet direction.

4. A humidification module for a ventilator according to claim 3, characterized in that: The flow guide member (4) further comprises a second flow guide section (42), and the first flow guide section (41) and the second flow guide section (42) are symmetrically arranged along the cone bottom surface of the first flow guide section (41).

5. A humidification module for a ventilator according to claim 2, characterized in that: A connecting rib (111) is provided in the chamber (11), and the connecting rib (111) is used to fix the flow guide (4) to the chamber wall of the chamber (11).

6. A humidification module for a ventilator according to claim 2, characterized in that: The guide member (4) comprises a drainage rib (43) arranged on the outer periphery of the guide member (4), and the drainage rib (43) is used to guide the liquid to the gap between the inner air inlet section (22) and the wall of the chamber (11), and / or the drainage rib (43) is used to guide the liquid to the gap between the inner air outlet section (32) and the wall of the chamber (11).

7. A humidification module for a ventilator according to claim 6, characterized in that: The drainage ribs (43) include a plurality of first drainage ribs and a plurality of second drainage ribs extending in the opposite direction to the first drainage ribs. The plurality of first drainage ribs and the plurality of second drainage ribs are arranged in sequence and spaced apart and connected to each other.

8. A humidification module for a ventilator according to claim 2, characterized in that: The shell (1) comprises at least two outwardly protruding ribs (12), the inner air inlet section (22) and the inner air outlet section (32) are respectively located in one of the ribs (12), and form a first liquid storage tank (221) and a second liquid storage tank (321) respectively between the ribs (12).

9. A humidification module for a ventilator according to claim 8, characterized in that: The inner air intake section (22) comprises a first extension section (222) extending from the first liquid storage tank (221), and the first extension section (222) is provided with a plurality of first notches (223); And / or, the inner air outlet section (32) comprises a second extension section (322) extending from the second liquid storage tank (321), and the second extension section (322) is provided with a plurality of second notches (323).

10. A humidification module for a ventilator according to claim 2, characterized in that: The air inlet pipe (2) and the air outlet pipe (3) are coaxially arranged.

11. A humidification module for a ventilator according to claim 1 or 2, characterized in that: The outer air inlet section (21) and the outer air outlet section (31) are coaxially arranged, and the air outlet of the inner air inlet section (22) and the air inlet of the inner air outlet section (32) are staggered.

12. A humidification module for a ventilator according to claim 11, characterized in that: One side wall of the inner air intake section (22) extends obliquely toward the other side wall, so that the radial area of ​​the inner air intake section (22) gradually decreases along the air intake direction; One side wall of the inner air outlet section (32) extends obliquely toward the other side wall, so that the radial area of ​​the inner air outlet section (32) gradually increases along the air outlet direction.

13. A humidification module for a ventilator according to claim 1 or 2, characterized in that: The air inlet pipe (2) and the air outlet pipe (3) are located on the same side of the shell (1).

14. A humidification module for a ventilator according to claim 1 or 2, characterized in that: The air inlet pipe (2) and the air outlet pipe (3) are respectively located on opposite sides of the shell (1); the shell (1) has a midline parallel to the central axis of the air inlet pipe (2); the air inlet pipe (2) and the air outlet pipe (3) are respectively located on both sides of the midline, so that the air outlet of the air inlet pipe (2) and the air inlet of the air outlet pipe (3) are arranged in a staggered manner.

15. A humidification module for a ventilator according to claim 1 or 2, characterized in that: An angle θ is formed between the central axis of the air inlet pipe (2) and the central axis of the air outlet pipe (3), and the angle θ satisfies: 30°≤θ≤90°.

Images