Humidifier with good humidifying effect
By incorporating a shield and a central outlet connection in the humidifier, combined with PSU material and Luer connectors, the problems of poor humidification effect and safety of the humidifier are solved, achieving more efficient gas humidification and safe connection, and reducing the risk of production and cross-contamination.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EXCELLENTCARE MEDICAL HUIZHOU
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-08
AI Technical Summary
The design of the air inlet and outlet positions of existing humidifiers is unreasonable, resulting in poor gas humidification effect. Furthermore, they are prone to causing respiratory tube blockage and patient discomfort during non-invasive or high-flow ventilation, and pose a risk of cross-infection.
The humidifier's air inlet is designed with a shield on the side near the air outlet connection. The air outlet connection is located in the center of the humidifier body, using PSU material and a standard Luer connector, combined with a sealing ring and snap-fit structure to ensure sufficient gas humidification and safe connection.
It improves the gas humidification effect, prevents the airflow from blowing humidified water into the breathing tube, reduces the risk of blockage and infection, lowers production costs and the probability of cross-infection, and enhances the safety and convenience of use.
Smart Images

Figure CN224207200U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a humidifier with good humidification effect. Background Technology
[0002] In the medical field, especially in respiratory therapy, humidifiers play a crucial role. Their main function is to humidify the gas delivered to the patient, ensuring it reaches a suitable humidity level to prevent dry air from irritating and damaging the patient's respiratory tract.
[0003] Currently, some humidifiers on the market have shortcomings in their structural design. The positional relationship between the air inlet and outlet of some humidifiers is unreasonable, causing gas to be output from the outlet before it can fully contact the water inside the humidifier body. This results in poor humidification, and the output gas humidity does not reach the ideal level, failing to meet the patient's respiratory tract's need for moist air, thus affecting the treatment effect.
[0004] In addition, some humidifiers have air inlets and outlets that are too close together and lack effective airflow guidance structures. When performing non-invasive or high-flow ventilation, the large airflow can cause the gas entering the humidifier to directly impact the water surface inside, resulting in a large amount of water being blown up. This blown-up water can then enter the breathing tubing with the airflow, potentially causing blockages and affecting normal gas delivery. It can also increase the risk of patients inhaling water droplets, leading to choking and other discomfort, and in severe cases, even respiratory infections and other complications. Utility Model Content
[0005] The purpose of this invention is to provide a humidifier with good humidification effect that allows the gas to have more sufficient contact with the water in the humidification body and a longer contact time, thus ensuring safe use.
[0006] A humidifier with good humidification effect includes a humidification tank. The humidification tank includes a humidification body, an air outlet connection part, and an air inlet connection part. The air outlet connection part is located at the center of the humidification body. The air inlet connection part is adjacent to the air outlet connection part. The humidification body is provided with an air outlet communicating with the air outlet connection part and an air inlet communicating with the air inlet connection part. A shielding part is provided on the side of the air inlet near the air outlet connection part.
[0007] In the above scheme, since the air inlet is provided with a shield on the side near the air outlet connection, the gas entering the humidification body will enter along the side of the humidification body as much as possible. This design can prevent the large airflow during non-invasive or high-flow ventilation from blowing water in the humidification body into the breathing tubing. On the other hand, it can also make the gas fully humidified, thereby improving the humidification effect of the gas output from the air outlet connection. The air outlet connection is located in the center of the humidification body, which also facilitates the connection with the breathing tubing.
[0008] Furthermore, the diameter of the outlet connection end is smaller than the diameter of the inlet connection end.
[0009] In the above scheme, the diameter of the end of the air outlet connection is designed to be smaller than the diameter of the end of the air inlet connection, which can prevent the air outlet connection and the air inlet connection from being installed in reverse with the breathing tube, thus realizing the physical anti-reverse installation function.
[0010] Furthermore, the shielding portion is fan-shaped.
[0011] In the above scheme, the cross-section of the air inlet is circular, and the fan shape can better match the air inlet, effectively playing the role of blocking and guiding airflow, and also facilitating one-piece injection molding, reducing production difficulty and cost.
[0012] Furthermore, the humidification tank is made of PSU material.
[0013] In the above solution, PSU material can withstand the high temperature and high pressure sterilization process without deformation, damage or performance degradation. This ensures that the humidification tank is sterile before each use. Compared with some materials that cannot be thoroughly sterilized or disposable products, it can more effectively prevent cross-infection and protect the medical safety of patients. Because PSU material has good chemical stability and heat resistance, its physical and chemical properties will not change significantly during multiple high temperature and high pressure sterilization processes, which allows the humidification tank to be used multiple times, greatly reducing the frequency of purchasing new equipment and thus saving overall purchase costs.
[0014] Furthermore, the humidification tank also includes a water injection connector, which is a standard Luer connector.
[0015] In the above scheme, the humidification tank uses a standard Luer connector as the water injection connector, which can be seamlessly connected to various water injection devices that meet the standard without the need for additional adapters. This allows the water injection device to continuously inject water into the humidification tank, improving the convenience and flexibility of the water injection operation.
[0016] Furthermore, the water injection connector is detachably connected to an interface sealing plug, the interface sealing plug is connected to a flexible connecting chain, and the flexible connecting chain is connected to the humidification body.
[0017] In the above solution, the interface sealing plug and the water injection connector are detachably connected, which makes it easy to remove the sealing plug when water injection is needed and to quickly reinstall it after water injection is completed. The operation process is simple and quick, without complicated tools or steps. The flexible connecting chain connects the interface sealing plug to the humidification body, avoiding the problem of the interface sealing plug being lost due to random placement after removal.
[0018] Furthermore, the humidification body is provided with a protruding structure, the protruding structure is provided with a snap-fit hole, and the flexible connecting chain is provided with at least two snap-fit blocks, one of which snaps into the snap-fit hole, and the other snaps into the interface sealing plug.
[0019] In the above solution, the snap-fit method is simple to operate. When assembling the relevant components of the humidification tank, the workers only need to align the snap-fit blocks on the flexible connecting chain with the snap-fit holes on the protruding structure and apply a certain pressure to complete the connection. The snap-fit blocks and the interface are connected in the same way. This quick assembly method saves installation time and improves production or assembly efficiency. In particular, when mass-producing humidification tanks, it can significantly improve the overall production progress.
[0020] Furthermore, it also includes a sealing ring and a chassis, wherein the chassis has an annular groove on the side adjacent to the humidification body, and the sealing ring is embedded in the groove.
[0021] In the above scheme, the humidification tank contains liquid inside during operation to humidify the gas. The sealing ring is embedded in the annular groove, which can form a tight sealing barrier at the connection between the chassis and the humidification body. This can effectively prevent the liquid inside the humidification tank from leaking out from the connection gap between the two, avoiding liquid outflow and causing humidity and pollution to the surrounding environment. At the same time, it also ensures the stability of the liquid volume inside the humidification tank, which is conducive to maintaining normal humidification function.
[0022] Furthermore, the sealing ring has a rectangular cross-section.
[0023] In the above scheme, the rectangular cross-section sealing ring has a large contact area with the chassis and the humidification body. When the chassis and the humidification body are connected, the larger contact area can provide a wider sealing area, which can more effectively prevent liquid and gas from leaking from the connection gap between the two. Whether it is water vapor in the humidification tank or possible pressure changes, this large-area fit can ensure a good sealing effect and maintain the normal operation of the humidification process. This increases the sealing reliability of the humidification tank and improves the pressure resistance of the humidification tank.
[0024] This utility model provides a humidifier with excellent humidification effect, allowing for more thorough and longer contact between the gas and the water within the humidification body, thus ensuring safe use. Because a shield is provided on the side of the air inlet near the air outlet connection, the gas entering the humidification body will enter along the side of the humidification body as much as possible. This design prevents the large airflow during non-invasive or high-flow ventilation from blowing water from the humidification body into the breathing tubing, and also ensures thorough humidification of the gas, thereby improving the humidification effect of the gas output from the air outlet connection. The air outlet connection, located at the center of the humidification body, also facilitates connection to the breathing tubing. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of a humidifier according to one embodiment.
[0026] Figure 2 This is a schematic diagram of a water injection connector and protrusion structure according to one embodiment.
[0027] Figure 3 This is a schematic diagram of an interface sealing plug and a flexible connecting chain according to one embodiment.
[0028] Figure 4 This is a schematic diagram of the chassis and sealing ring structure of one embodiment.
[0029] Explanation of reference numerals: 100, Humidification tank; 101, Humidification body; 102, Air outlet connection; 103, Air inlet connection; 104, Water inlet connector; 2, Air inlet; 3, Air outlet; 4, Shielding part; 5, Interface sealing plug; 6, Flexible connecting chain; 61, Snap-fit block; 7, Protruding structure; 71, Snap-fit hole; 8, Chassis; 9, Sealing ring. Detailed Implementation
[0030] The present invention provides a humidifier with good humidification effect, which will be described in further detail below with reference to specific embodiments and accompanying drawings.
[0031] like Figure 1 and Figure 2As shown in a preferred embodiment, the present invention provides a humidifier with good humidification effect, including a humidification tank 100. The humidification tank 100 includes a humidification body 101, an air outlet connection 102, and an air inlet connection 103. The air outlet connection 102 is located at the center of the humidification body 101, and the air inlet connection 103 is adjacent to the air outlet connection 102. The humidification body 101 is provided with an air outlet 3 communicating with the air outlet connection 102 and an air inlet 2 communicating with the air inlet connection 103. A shielding part 4 is provided on the side of the air inlet 2 near the air outlet connection 102. Since the air inlet 2 is provided with a shield 4 on the side near the air outlet connection 102, the gas entering the humidification body 101 will enter along the side of the humidification body 101 as much as possible. This design can prevent the large airflow during non-invasive or high-flow ventilation from blowing water in the humidification body 101 into the breathing tubing. On the other hand, it can also make the gas fully humidified, thereby improving the humidification effect of the gas output from the air outlet connection 102. The air outlet connection 102 is located in the center of the humidification body 101, which also facilitates the connection with the breathing tubing.
[0032] Specifically, during non-invasive or high-flow ventilation, the airflow is relatively large. Without the shield 4, the gas entering the humidification body 101 may directly impact the water surface inside the humidification body 101, causing water to be blown up and enter the breathing tubing from the air outlet 3. However, with the shield 4 installed on the side of the air inlet 2 near the air outlet connection 102, the gas entering the humidification body 101 will try to enter along the side of the humidification body 101. This can prevent the gas from directly impacting the water surface, effectively preventing water from being blown into the breathing tubing, ensuring the smooth flow of the breathing tubing and its safety, and reducing potential malfunctions and infections caused by water entering the breathing tubing.
[0033] As the gas enters along the side of the humidifying body 101, it forms a more dispersed and uniform airflow path within the humidifying body 101. This allows the gas to have more thorough contact with the water within the humidifying body 101 and a longer contact time. Compared to the situation where the gas may pass through the humidifying body 101 quickly without the obstruction part 4, this design allows the gas to better absorb moisture within the humidifying body 101, thereby achieving more thorough humidification of the gas. This improves the humidification effect of the gas output from the gas outlet connection part 102. The fully humidified gas can better meet the user's respiratory needs and reduce discomfort caused by inhaling dry gas, such as dryness and damage to the respiratory mucosa.
[0034] like Figure 1 As shown, in some embodiments, the diameter of the end of the air outlet connection 102 is smaller than the diameter of the end of the air inlet connection 103. Designing the diameter of the end of the air outlet connection 102 to be smaller than the diameter of the end of the air inlet connection 103 can prevent the air outlet connection 102 and the air inlet connection 103 from being installed in reverse with the breathing tubing, thus achieving a physical anti-reverse installation function.
[0035] like Figure 1 As shown, in some embodiments, the shielding part 4 is fan-shaped. The cross-section of the air inlet 2 is circular, and the fan-shaped shape can better match the air inlet 2, effectively playing the role of shielding and guiding airflow, and also facilitating one-piece injection molding, reducing production difficulty and cost.
[0036] like Figure 1 As shown, in some embodiments, the humidification tank 100 is made of PSU material. PSU material can withstand the high-temperature and high-pressure sterilization process without deformation, damage, or performance degradation. This ensures that the humidification tank 100 is sterile before each use. Compared with some materials that cannot be thoroughly sterilized or disposable products, it can more effectively prevent cross-infection and protect the medical safety of patients. Due to the good chemical stability and heat resistance of PSU material, its physical and chemical properties will not change significantly during multiple high-temperature and high-pressure sterilization processes, allowing the humidification tank 100 to be used multiple times. This greatly reduces the frequency of purchasing new equipment, thereby saving overall purchase costs.
[0037] like Figure 1 and Figure 2 As shown, in some embodiments, the humidification tank 100 also includes a water injection connector 104, which is a standard Luer connector. The use of a standard Luer connector as the water injection connector 104 allows for seamless connection with various water injection devices conforming to this standard, eliminating the need for additional adapters. This enables the water injection device to continuously inject water into the humidification tank 100, improving the convenience and flexibility of the water injection operation.
[0038] like Figure 1 and Figure 3 As shown, in some embodiments, the water injection connector 104 is detachably connected to an interface sealing plug 5, which is connected to a flexible connecting chain 6. The flexible connecting chain 6 is connected to the humidification body 101. The detachable connection between the interface sealing plug 5 and the water injection connector 104 allows the sealing plug to be easily removed when water injection is needed and quickly reinstalled after water injection. The operation is simple and quick, requiring no complicated tools or steps. The flexible connecting chain 6 connects the interface sealing plug 5 to the humidification body 101, preventing the interface sealing plug 5 from being lost due to careless placement after removal.
[0039] like Figure 1 and Figure 3As shown, in some embodiments, the humidification body 101 is provided with a protruding structure 7, the protruding structure 7 is provided with a snap-fit hole 71, and the flexible connecting chain 6 is provided with at least two snap-fit blocks 61, one of which snaps into the snap-fit hole 71, and the other snaps into the interface sealing plug 5. The snap-fit method is simple to operate. When assembling the relevant components of the humidification tank 100, the operator only needs to align the snap-fit block 61 on the flexible connecting chain 6 with the snap-fit hole 71 on the protruding structure 7 and apply a certain pressure to complete the connection. The snap-fit block 61 and the interface sealing connection are also done in the same way. This quick assembly method saves installation time and improves production or assembly efficiency. Especially when mass-producing the humidification tank 100, it can significantly improve the overall production progress.
[0040] The flexible connecting chain 6 shown in the attached figure is not connected to the interface sealing plug 5. The connection between the flexible connecting chain 6 and the interface sealing plug 5 can be achieved by passing the snap-fit block 61 through the hole on the interface sealing plug 5.
[0041] like Figure 3 and Figure 4 As shown, in some embodiments, a sealing ring 9 and a chassis 8 are also included. The chassis 8 has an annular groove on the side adjacent to the humidification body 101, and the sealing ring 9 is embedded in the groove. During operation, the humidification tank 100 contains liquid for humidifying the gas. The sealing ring 9, embedded in the annular groove, forms a tight sealing barrier at the connection between the chassis 8 and the humidification body 101. This effectively prevents the liquid inside the humidification tank 100 from leaking out through the connection gap, avoiding liquid outflow that could cause moisture and pollution to the surrounding environment. It also ensures a stable liquid volume inside the humidification tank 100, which is beneficial for maintaining normal humidification function.
[0042] In the above embodiments, the aluminum disc is made of aluminum alloy. The wall thickness distribution of the aluminum disc is designed according to the humidifier principle and power, which ensures the uniformity of heating and the constant temperature of the humidified water. The surface is treated with thickened hard anodizing, which greatly improves the wear resistance of the product. It can maintain its good appearance without scratches or abrasions even after being installed on the humidifier hundreds or thousands of times, thus ensuring its good thermal conductivity.
[0043] like Figure 4As shown, in some embodiments, the sealing ring 9 has a rectangular cross-section. The sealing ring 9 is made of high-temperature resistant silicone material. The rectangular cross-section of the sealing ring 9 provides a larger contact area with the chassis 8 and the humidification body 101. When the chassis 8 and the humidification body 101 are connected, the larger contact area provides a wider sealing area, more effectively preventing liquid and gas leakage from the connection gap. This large-area fit ensures a good sealing effect against both water vapor inside the humidification tank 100 and potential pressure changes, maintaining the normal operation of the humidification process. This increases both the sealing reliability and pressure resistance of the humidification tank 100.
[0044] This invention discloses the working principle and process of a humidifier with good humidification effect. External gas first enters the humidification tank 100 through the inlet connection 103. When the gas reaches the inlet 2, a shield 4 is provided on the side of the inlet 2 near the outlet connection 102, which changes the flow direction of the gas. The shield 4 prevents the gas from flowing directly towards the outlet connection 102, causing the gas entering the humidification body 101 to enter along the side of the humidification body 101 as much as possible. This design avoids the large airflow during non-invasive or high-flow ventilation from directly impacting the water surface inside the humidification body 101, preventing a large amount of water from being blown up and entering the breathing tube. Moreover, because the gas flows along the side, the flow path and residence time of the gas in the humidification tank 100 are prolonged, increasing the contact area and contact time between the gas and water, thus allowing the gas to absorb moisture more fully and improving the humidification effect.
[0045] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0048] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.
Claims
1. A humidifier with good humidification effect, characterized in that, The device includes a humidification tank, which comprises a humidification body, an air outlet connection, and an air inlet connection. The air outlet connection is located at the center of the humidification body, and the air inlet connection is adjacent to the air outlet connection. The humidification body is provided with an air outlet communicating with the air outlet connection and an air inlet communicating with the air inlet connection. A shielding part is provided on the side of the air inlet near the air outlet connection.
2. The humidifier with good humidification effect according to claim 1, characterized in that, The diameter of the outlet connection part is smaller than the diameter of the inlet connection part.
3. The humidifier with good humidification effect according to claim 1, characterized in that, The shielding part is fan-shaped.
4. The humidifier with good humidification effect according to claim 1, characterized in that, The humidification tank is made of PSU material.
5. The humidifier with good humidification effect according to claim 1, characterized in that, The humidification tank also includes a water injection connector, which is a standard Luer connector.
6. The humidifier with good humidification effect according to claim 5, characterized in that, The water injection connector is detachably connected to an interface sealing plug, which is connected to a flexible connecting chain, and the flexible connecting chain is connected to the humidification body.
7. The humidifier with good humidification effect according to claim 6, characterized in that, The humidification body has a protruding structure, the protruding structure has a snap-fit hole, the flexible connecting chain has a snap-fit block, and the snap-fit block snaps into the snap-fit hole.
8. The humidifier with good humidification effect according to claim 1, characterized in that, It also includes a sealing ring and a chassis, wherein the chassis has an annular groove on the side adjacent to the humidification body, and the sealing ring is embedded in the groove.
9. The humidifier with good humidification effect according to claim 8, characterized in that, The sealing ring has a rectangular cross-section.