Ventilation tubing for a humidifier, a humidifier, and a ventilation therapy apparatus

Abstract

The utility model relates to ventilation therapy field discloses a ventilation pipeline for humidifier, humidifier and ventilation therapy equipment for ventilation pipeline is used to connect the ventilation mouth of humidifier and liquid storage chamber, including the pipe body, the upper cover connecting portion of first end setting in the pipe body and the ventilation mouth connecting portion setting in the second end of pipe body, the upper cover connecting portion is used for with the upper cover of humidifier connection, the ventilation mouth connecting portion is used for with the ventilation mouth connection, the pipe body sets up deformable, to make ventilation pipeline always keep with the ventilation mouth and the upper cover connection when the upper cover opens. When using, when needing to open the upper cover to add liquid to the liquid storage chamber, the first end of pipe body will move upwards with the upper cover even overturn, make the first end of pipe body no longer be located above the area of liquid storage chamber, when adding liquid to the liquid storage chamber, liquid can not enter the pipe body, simultaneously because the second end of pipe body always connects with the ventilation mouth, liquid also can not enter the ventilation mouth, like this can effectively prevent liquid from entering the ventilation mouth.

Description

Technical Field

[0001] This utility model relates to the field of ventilation therapy, specifically to a ventilation duct for a humidifier, a humidifier including the ventilation duct, and a ventilation therapy device including the humidifier. Background Technology

[0002] Ventilation therapy equipment, such as ventilators, is commonly used for respiratory diseases. When using a ventilator, a humidifier is needed to warm and humidify the breathing gas to provide patients with a better breathing experience. Continuously warming and humidifying the breathing gas is crucial during ventilator use to ensure the patient receives optimal comfort.

[0003] However, current ventilator products on the market have the following problems: If the humidifier needs to be refilled during use, the machine must be paused and the humidifier removed before refilling. This disassembly and reassembly of the humidifier causes inconvenience to the user. Furthermore, after the humidifier is removed, the connection port on the main unit is exposed. This exposed connection port can easily affect the cleanliness of the airway inside the machine. Additionally, during the process of refilling the humidifier and reinstalling it on the main unit, liquid from the humidifier can easily overflow and flow further into the main unit or breathing tubing through the connection port, potentially damaging the main unit or being inhaled by the user through the breathing tubing, thus posing a danger.

[0004] Therefore, it is particularly important to develop a humidifier that allows for convenient liquid addition without removing the humidifier during machine use, while preventing liquid from accidentally entering the core components of the machine. Utility Model Content

[0005] The purpose of this invention is to overcome the problems existing in the prior art and provide a ventilation pipe for a humidifier, a humidifier including the ventilation pipe, and a ventilation therapy device including the humidifier.

[0006] To achieve the above objectives, the first aspect of this utility model provides a ventilation pipe for a humidifier, the ventilation pipe being used to connect the humidifier's vent and a liquid storage chamber. The ventilation pipe includes a pipe body, a top cover connecting portion disposed at a first end of the pipe body, and a vent connecting portion disposed at a second end of the pipe body. The top cover connecting portion is used to connect with the top cover of the humidifier, and the vent connecting portion is used to connect with the vent. At least a portion of the pipe body is configured to be deformable, so that the ventilation pipe remains connected to the vent and the top cover when the top cover is open.

[0007] This invention relates to a ventilation tube that connects the first end of a tube to the top cover of the humidifier and the second end to the humidifier's air vent. At least a portion of the tube is deformable. During use, when liquid needs to be added to the humidifier's reservoir and the top cover is opened, the deformable nature of the tube causes the first end to move upwards or even flip, preventing it from being positioned above the reservoir area. This prevents liquid from entering the first end of the tube when adding liquid. Simultaneously, since the second end of the tube is always connected to the air vent, and the first and second ends are interconnected, liquid cannot pass through the second end to enter the air vent connected to it. This effectively prevents liquid from entering the air vent and flowing into the main unit or the breathing tube.

[0008] In some embodiments, at least a portion of the tube body is configured to be telescopic and / or flexible.

[0009] In some embodiments, at least one section of the pipe body is configured as a corrugated pipe section.

[0010] In some embodiments, the pipe body has a corrugated section, preferably located in the middle of the pipe body.

[0011] In some embodiments, the pipe body has two corrugated pipe sections, preferably, the two corrugated pipe sections are respectively disposed near both ends of the pipe body.

[0012] In some embodiments, at least the corrugated section of the pipe body is made of a flexible material.

[0013] In some embodiments, the top cover connector can be detachably connected to the top cover.

[0014] In some embodiments, the upper cover connecting portion is provided with a buckle or a slot for engaging with the upper cover buckle.

[0015] In some embodiments, the upper cover connecting portion has a connecting plane for engaging with the inner side of the upper cover, and at least one of the buckles or slots is provided on the connecting plane; preferably, three of the buckles or slots are provided on the connecting plane, and the three buckles or slots are arranged at intervals as three adjacent sides of a square outline.

[0016] In some embodiments, the first end of the tube is provided with a first port, and the opening direction of the first port is at an angle to the axial direction of the tube. Preferably, the opening direction of the first port is perpendicular to the axial direction of the tube.

[0017] In some embodiments, the second end of the pipe body is provided with a second port, and the opening direction of the second port is the axial direction of the pipe body.

[0018] In some embodiments, the vent connector can be detachably connected to the vent.

[0019] In some embodiments, the vent connection portion is provided with a buckle or groove for snap-fit ​​connection with the vent. Preferably, the buckle or groove is provided around the second vent located at the second end of the pipe body.

[0020] In some embodiments, the tube body has a variable diameter structure.

[0021] In some embodiments, the cross-section of the first end of the tube is larger than the cross-section of the rest of the tube.

[0022] In some embodiments, the ventilation pipeline includes two pipe bodies, the upper cover connecting portions of the two pipe bodies are connected as one unit, and the vent connecting portions of the two pipe bodies are connected as one unit; preferably, the opening directions of the first pipe ports at the first ends of the two pipe bodies are arranged opposite to each other.

[0023] The second aspect of this utility model provides a humidifier, including the above-described ventilation pipe for a humidifier. The humidifier further includes a housing defining a liquid storage chamber and an upper cover covering the housing. The housing is provided with two vents communicating with the liquid storage chamber. The vents are connected to the liquid storage chamber through the ventilation pipe. The upper cover connecting portion of the ventilation pipe is connected to the upper cover, and the vent connecting portion of the ventilation pipe is connected to the vent.

[0024] The humidifier of this utility model, through the above-described solution, when the top cover is opened to add liquid to the humidifier's storage chamber, because at least a portion of the tube is deformable, the first end of the tube will move upwards or even flip up with the top cover, thus preventing the first end of the tube from being located above the storage chamber area when adding liquid to the storage chamber. At the same time, because the second end of the tube is always connected to the vent, and the first and second ends of the tube are connected, liquid cannot enter the vent connected to the second end of the tube through the second end of the tube. This effectively prevents liquid from entering the vent and flowing along the vent into the main unit or breathing tubing.

[0025] In some embodiments, the upper cover and the upper cover connecting portion are detachably connected. Preferably, the upper cover and the upper cover connecting portion are detachably connected via a first snap-fit ​​structure.

[0026] In some embodiments, the vent connector is detachably connected to the vent. Preferably, the vent connector is detachably connected to the vent via a second snap-fit ​​structure.

[0027] In some embodiments, the top cover is movably connected to the housing; preferably, the top cover is rotatably connected to the housing.

[0028] In some embodiments, the housing includes a lower shell, a middle shell, and a side plate, the liquid storage cavity is defined by the lower shell, the middle shell is disposed on the lower shell, the upper cover is disposed on the middle shell, the side plate is disposed on the middle shell, and the vent is disposed on the side plate.

[0029] The third aspect of this utility model provides a ventilation therapy device, including a main unit and the humidifier described above, wherein the main unit is used to provide pressurized gas to the humidifier, and the pressurized gas is discharged after being humidified by the humidifier.

[0030] The ventilation therapy device of this utility model, through the above technical solution, adopts a humidifier with an openable lid for adding liquid. The humidifier can directly replenish liquid when installed with the main unit. At the same time, the internal ventilation pipeline can effectively prevent liquid from entering the main unit or breathing pipeline. While meeting product requirements, it solves the problems of manufacturability, usability, and safety, and can effectively reduce installation and maintenance costs, while increasing the safety of use.

[0031] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0032] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0033] Figure 1 This is a perspective view of one embodiment of the ventilation pipeline in this utility model;

[0034] Figure 2 yes Figure 1 A three-dimensional view of the central ventilation pipeline from another angle;

[0035] Figure 3 yes Figure 2 Top view of the central ventilation pipeline;

[0036] Figure 4 yes Figure 3 AA section view;

[0037] Figure 5 yes Figure 4Enlarged view of part C;

[0038] Figure 6 yes Figure 3 BB section view;

[0039] Figure 7 This is a perspective view of another embodiment of the ventilation pipeline in this utility model;

[0040] Figure 8 This is a perspective view of another embodiment of the ventilation pipeline in this utility model;

[0041] Figure 9 yes Figure 8 A three-dimensional view of the central ventilation pipeline from another angle;

[0042] Figure 10 yes Figure 8 Top view of the central ventilation duct;

[0043] Figure 11 yes Figure 10 DD sectional view;

[0044] Figure 12 yes Figure 10 EE sectional view;

[0045] Figure 13 yes Figure 8 A 3D view of the stretched central ventilation pipeline;

[0046] Figure 14 This is a perspective view of one embodiment of the humidifier in this utility model;

[0047] Figure 15 yes Figure 14 Exploded view of a humidifier;

[0048] Figure 16 yes Figure 15 A bottom-view perspective of the central ventilation pipe, top cover, and side connection plate;

[0049] Figure 17 yes Figure 15 A 3D view of the ventilation pipes connected to the side panel.

[0050] Figure 18 yes Figure 17 A three-dimensional view of the central venting pipe and side connection plate from another angle;

[0051] Figure 19 yes Figure 17 Top view of the central venting pipe and side connection plate;

[0052] Figure 20 yes Figure 19 FF sectional view;

[0053] Figure 21 yes Figure 20 Enlarged view of part G;

[0054] Figure 22 yes Figure 14 Side view of a humidifier;

[0055] Figure 23 yes Figure 22 HH cross-sectional view of a humidifier;

[0056] Figure 24 yes Figure 23 Enlarged view of part I.

[0057] Explanation of reference numerals in the attached figures

[0058] 10-Ventilation pipe, 11-Pipe body, 111-Corrugated pipe section, 112-First pipe opening, 113-Second pipe opening, 12-Top cover connection part, 121-Connecting plane, 122-First slot, 13-Ventilation port connection part, 131-Second buckle;

[0059] 20-Humidifier, 21-Liquid storage chamber, 22-Shell, 221-Ventilation port, 222-Lower shell, 223-Middle shell, 224-Side connecting plate, 225-Second slot, 226-Snap-on position, 23-Top cover, 231-First snap-on, 232-Lock, 24-Heat-conducting plate, 25-Heat-conducting sealing ring, 26-Top cover sealing ring. Detailed Implementation

[0060] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this utility model by way of example, but should not be used to limit the scope of this utility model. This utility model can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0061] These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0062] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, 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, and therefore should not be construed as a limitation of this utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0063] Furthermore, the terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0064] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0065] All terms used in this invention have the same meaning as understood by one of ordinary skill in the art to which this invention pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0066] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0067] Ventilation therapy equipment, such as a ventilator, typically includes a main unit, a humidifier, a breathing tubing, and a patient interface (e.g., a breathing mask). The breathing tubing connects the main unit and the patient interface. The main unit contains a fan assembly and has an air inlet connected to the outside, an air outlet connected to the breathing tubing, and two connecting ports connected to the humidifier. In use, the main unit draws in external air through the air inlet via the fan assembly, pressurizes it, and then passes it through one connecting port to the humidifier for heating and humidification. The heated and humidified air is then discharged from the humidifier through the other connecting port and finally delivered from the main unit's air outlet to the patient interface for inhalation.

[0068] Existing humidifiers typically consist of a housing defining a liquid reservoir and a top cover covering the housing. A portion of the housing forms the liquid reservoir (because, generally, the liquid capacity of the housing cannot completely fill it to prevent overflow). The housing has two vents communicating with the liquid reservoir, which correspond one-to-one with two ports on the main unit. During humidification, gas enters the liquid reservoir through one vent, is heated and humidified, and then exits to the main unit through the other vent. When adding liquid to the humidifier, it is generally necessary to pause and stop the main unit, remove the humidifier from the main unit, and then open the top cover to add liquid. This operation is generally inconvenient. Furthermore, after removing the humidifier, the connection port between the humidifier and the main unit is exposed. This exposure can affect the cleanliness of the airway inside the main unit. Also, during the process of refilling the humidifier and installing it back into the main unit, the humidifier needs to be installed smoothly and steadily. If the humidifier is impacted, bumped, or tilted, liquid inside the humidifier can easily overflow from the vent connected to the main unit, flowing into the main unit or the breathing tubing, potentially damaging the main unit or being inhaled by the user through the breathing tubing, causing a hazard. Some other designs allow for adding liquid (usually water or an aqueous solution) by directly opening the humidifier cover without removing it. However, in these designs, the connection port of the main unit or the humidifier's vent connected to it is usually exposed. This means that during the refilling process or if too much liquid is added, liquid inevitably enters the main unit or even the breathing tubing through the connection port, potentially damaging the main unit or causing the patient to inhale the liquid and choke.

[0069] To address the aforementioned problems, this utility model provides a ventilation pipe 10 for a humidifier. This ventilation pipe 10 connects the humidifier's air inlet 221 to the liquid storage chamber 21, allowing external gas to be humidified to enter the liquid storage chamber 21 for humidification, and outputting the humidified gas outside the humidifier. See also... Figures 1-13The ventilation pipe 10 includes a pipe body 11 with two ends, namely a first end and a second end, which are connected to each other. The first end has a first port 112 (for air inlet or outlet) and the second end has a second port 113 (for air outlet or inlet). The first port 112 is used to communicate with the liquid storage chamber of the humidifier, and the second port 113 is used to communicate with the air outlet 221 of the humidifier. The ventilation pipe 10 also includes a top cover connecting part 12 disposed at the first end of the pipe body 11 and an air outlet connecting part 13 disposed at the second end of the pipe body 11. The top cover connecting part 12 is used to connect with the top cover 23 of the humidifier, and the air outlet connecting part 13 is used to connect with the air outlet 221 of the humidifier. At least a portion of the pipe body 11 is configured to be deformable so that the ventilation pipe 10 remains connected to the air outlet 221 and the top cover 23 when the top cover 23 is open.

[0070] The ventilation pipe 10 of this utility model connects the first end of the pipe body 11 to the upper cover 23 of the humidifier, connects the second end of the pipe body 11 to the air inlet 221 of the humidifier, and at least a portion of the pipe body 11 is made deformable. When the top cover 23 is opened to add liquid to the humidifier's storage chamber during use, at least a portion of the tube 11 is deformable. The first end of the tube 11 moves upward or even flips with the top cover 23, thus preventing the first end of the tube 11 from being located above the storage chamber area. When adding liquid to the storage chamber, the liquid cannot enter the first end of the tube 11 (specifically, the first port 112). At the same time, since the second end of the tube 11 is always connected to the vent 221, and the first and second ends of the tube 11 are connected, the liquid cannot enter the vent 221 connected to the second end of the tube 11 through the second end of the tube 11 (specifically, the second port 113). In this way, the top cover 23 can be opened directly to add liquid to the storage chamber without removing the humidifier, making it convenient to add liquid and improving the user experience. Meanwhile, since the humidifier's air inlet 221 and the main unit's connection port connected to the air inlet 221 are not exposed relative to the liquid storage chamber after the top cover 23 is opened, that is, the humidifier's air inlet 221 (the second end of the tube 11) is connected to the first end of the tube 11. After the top cover 23 is opened, the first end of the tube 11 is generally located on one side of the liquid storage chamber, rather than directly above it. Therefore, it can effectively prevent liquid from entering the air inlet through the first end of the tube 11 and flowing along the air inlet to the main unit or breathing tubing, thereby avoiding the risk of damage to the main unit due to liquid ingress or the risk of liquid entering the breathing tubing and being inhaled by the patient, extending the service life of the equipment and improving the safety of equipment use.

[0071] In this invention, the tube body 11 can achieve the above-mentioned deformation in any way. However, in order to simplify the structure and reduce costs, as a preferred embodiment, at least a portion of the tube body 11 is made to be telescopic and / or flexible. In this way, the tube body 11 occupies a smaller liquid storage chamber space, and after the liquid is added, when the top cover 23 returns to its original position, the tube body 11 can return to its original shape.

[0072] The expansion, contraction, and bending of the tube body 11 can be achieved in various ways. According to a preferred embodiment of this invention, at least one section of the tube body 11 is configured as a corrugated section 111. By using a corrugated section 111 to achieve the expansion, contraction, and bending of the tube body 11, not only can costs be reduced, but the corrugated structure can also guide the liquid flow, preventing the liquid on the outer wall of the tube body 11 from flowing further towards the vent. In other embodiments, the tube body 11 can also be made of a flexible material structure without corrugations, as long as it can move with the top cover 23 after it is opened.

[0073] In this invention, the corrugated pipe section 111 can be provided in several ways. For example, in a first embodiment, the entire pipe body 11 can be corrugated. In a second embodiment, the pipe body 11 has a corrugated pipe section 111, preferably located in the middle of the pipe body 11 (see...). Figure 1 In a third embodiment, the pipe body 11 has two corrugated pipe sections 111, preferably, the two corrugated pipe sections 111 are respectively disposed near both ends of the pipe body 11 (see...). Figure 11 This satisfies the functions of bending, stretching, and compression, while also saving materials and increasing the strength of the tube.

[0074] In this utility model, see Figures 3-5 The wall thickness of the corrugated pipe section 111 can be 0.5mm-3mm, and the compressed corrugated length (i.e., the length of the corrugated pipe section before stretching after opening the cover) can be 5mm-100mm. The corrugated pipe section 111 can be freely stretched according to the opening angle of the cover. The stretching length L is related to the corrugation spacing S, the number of corrugations N, the corrugated wall thickness T, and the lengths W of the crests and troughs. A simple conversion formula is as follows:

[0075] L=N×2×((W-2T)×0.7)

[0076] S = N-1

[0077] The larger the corrugation spacing S, the longer the stretching length L.

[0078] In this invention, the tube body 11 can be made of any suitable material. To increase the tube body's ability to absorb noise and vibration and achieve noise reduction, at least the corrugated section 111 of the tube body 11 is made of a flexible material (e.g., silicone). The flexible corrugated section effectively alleviates the pressure shock generated during exhalation and inhalation, improving the patient's experience. Specifically, in some embodiments, the entire tube body 11 can be made of a flexible material. In other embodiments, the portion of the tube body 11 other than the corrugated section 111 can be made of a rigid material (e.g., hard plastic), thus ensuring the tube body 11 has sufficient strength while maintaining its deformability, thereby improving the reliability of tube installation and ventilation.

[0079] In this invention, to ensure the reliability of the connection, the top cover connection part 12 and the vent connection part 13 are preferably made of rigid materials, such as hard plastic.

[0080] In this invention, the upper cover connecting part 12 can be fixedly connected to the upper cover or detachably connected to the upper cover. To facilitate the cleaning and maintenance of the ventilation pipeline, it is preferable to set the upper cover connecting part 12 to be detachably connected to the upper cover.

[0081] The upper cover connecting part 12 and the upper cover can be detachably connected in any suitable manner. For ease of assembly and disassembly, preferably, the upper cover connecting part 12 and the upper cover are detachably connected using a first snap-fit ​​structure. For example, the upper cover connecting part 12 is provided with a snap-fit ​​or a slot (see details...). Figure 1 The first slot 122 shown has a slot or buckle on the top cover (see details). Figure 16 The first latch 231 shown.

[0082] To improve the reliability of the connection between the upper cover connecting part 12 and the upper cover, see Figure 1 The upper cover connecting portion 12 may have a connecting plane 121 for engaging with the inner side of the upper cover 23, and the connecting plane 121 is provided with at least one buckle or slot. When the upper cover connecting portion 12 engages with the buckle and slot on the upper cover, the connecting plane 121 fits against the inner side of the upper cover 23.

[0083] Specifically, see Figure 1 In the embodiment shown, the top surface of the upper cover connecting part 12 is a connecting plane 121, and three buckles or slots are provided on the connecting plane 121. The three buckles or slots are arranged at intervals as three adjacent sides of a square outline (see details). Figure 1 The three first slots 122 shown are used to connect the upper cover connecting part 12 to the upper cover through three sets of buckles and slots, which can further improve the reliability of the connection.

[0084] In this invention, the first port 112 at the first end of the tube body 11 can be opened at any position on the tube body 11, and can be adjusted according to the actual internal space, making it more flexible in mold forming. In some preferred embodiments, the first port 112 is opened on the side wall of the upper cover connecting part 12 perpendicular to the axial direction of the tube body 11, and the opening direction of the first port 112 has an angle with the axial direction of the tube body 11. Preferably, the opening direction of the first port 112 is perpendicular to the axial direction of the tube body 11 (that is, when the axial direction of the tube body 11 extends in the first direction in the horizontal direction, the opening direction of the first port 112 extends in the direction perpendicular to the first direction in the horizontal direction, rather than in the vertical direction perpendicular to the horizontal direction, that is, the opening direction of the first port 112 does not directly face the bottom direction of the liquid storage cavity 21). This further prevents liquid from entering the tube body, and also keeps the first openings 112 of the two tube bodies 11 (one as an air inlet and the other as an air outlet) far apart (for example, one opens horizontally to the left and the other opens horizontally to the right), thereby extending the flow path of the gas in the liquid storage chamber and improving the gas humidification effect.

[0085] In some preferred embodiments of this invention, the opening direction of the second port 113 at the second end of the tube body 11 is the same as the axial direction of the tube body 11, so as to facilitate the smooth entry of the gas to be humidified into the tube body 11, and also to facilitate the sealing and connection between the second port 113 and the vent.

[0086] In this invention, the vent connection 13 can be fixedly connected to the vent 221 of the humidifier 20, or it can be detachably connected to the vent 221. To facilitate the cleaning and maintenance of the ventilation pipeline, it is preferable to configure the vent connection 13 to be detachably connected to the vent 221.

[0087] The vent connector 13 and the vent 221 can be detachably connected in any suitable manner. For ease of assembly and disassembly, the vent connector 13 and the vent 221 are preferably connected using a second snap-fit ​​structure. For example, the vent connector 13 is provided with a snap-fit ​​or a slot (see [reference needed] for details). Figure 21 The second latch 131 shown has a slot or latch at the vent (see details). Figure 21 The second card slot 225 shown.

[0088] Specifically, see Figure 4In the illustrated embodiment, the vent connection portion 13 is provided with an annular buckle or groove. The annular buckle or groove is arranged around the second pipe opening 113 located at the second end of the pipe body 11, which can further seal the connection between the second pipe opening 113 and the vent, preventing liquid from entering the vent. Of course, in other embodiments, the vent connection portion 13 may include one or more arc-shaped buckles or grooves arranged around the second pipe opening 113, and the multiple arc-shaped buckles or grooves may be spaced apart around the second pipe opening 113.

[0089] In this invention, the diameter of the tube body 11 can be uniform or inconsistent. For example, in some embodiments, the tube body 11 has a variable diameter structure, meaning that the cross-sectional size of the tube body 11 is inconsistent. Preferably, such as... Figure 4 As shown, the cross-section of the first end of the tube 11 is larger than the cross-section of the rest of the tube 11, which can achieve a noise reduction effect.

[0090] In this invention, the ventilation pipe 10 may include one pipe body 11 or two pipe bodies 11. When the ventilation pipe 10 has one pipe body 11, the humidifier needs to be equipped with two ventilation pipes 10, one as an air inlet pipe and the other as an air outlet pipe (see...). Figure 15 When the ventilation pipeline has two pipe bodies 11, the upper cover connecting parts 12 of the two pipe bodies 11 can be connected as one unit, and the vent connecting parts 13 of the two pipe bodies 11 can be connected as one unit, thereby making the ventilation pipeline 10 a single unit (see...). Figures 8-10 The humidifier only needs one air passage, with one pipe serving as the air inlet and the other as the air outlet. Preferably, the opening directions of the first ports 112 at the first ends of the two pipes 11 are opposite to each other (for example, horizontally opening to the left and horizontally opening to the right, respectively). This can extend the flow path of the gas in the liquid storage chamber and improve the gas humidification effect.

[0091] This utility model also provides a humidifier, including an air duct 10. Specifically, see [link to details]. Figures 14-24 The humidifier 20 includes a housing 22 that defines a liquid storage chamber 21 and an upper cover 23 covering the housing 22. The housing 22 is provided with two air vents 221 that communicate with the liquid storage chamber 21. The air vents 221 are connected to the liquid storage chamber 21 through an air vent pipe 10. The upper cover connecting part 12 of the air vent pipe 10 is connected to the upper cover 23, and the air vent connecting part 13 of the air vent pipe 10 is connected to the air vents 221.

[0092] The humidifier of this utility model, through the above-described solution, allows for convenient liquid addition to the humidifier 20 when the top cover 23 is opened to add liquid to the liquid storage chamber 21. Since at least a portion of the tube body 11 is deformable, the first end of the tube body 11 moves upward or even flips with the top cover 23. This prevents the first end of the tube body 11 from being located above the liquid storage chamber area, thus preventing liquid from entering the first end of the tube body (specifically, the first port 112) when adding liquid to the storage chamber. Simultaneously, since the second end of the tube body 11 is always connected to the vent 221, the first and second ends of the tube body 11 are connected, preventing liquid from entering the vent 221 connected to the second end of the tube body 11 through the second end of the tube body 11 (specifically, the second port 113). This allows for convenient liquid addition by directly opening the top cover 23 to add liquid to the storage chamber without removing the humidifier, improving user experience. Meanwhile, since the humidifier's air inlet 221 and the main unit's connection port connected to the air inlet 221 are not exposed relative to the liquid storage chamber after the top cover 23 is opened, that is, the humidifier's air inlet 221 (the second end of the tube 11) is connected to the first end of the tube 11. After the top cover 23 is opened, the first end of the tube 11 is generally located on one side of the liquid storage chamber, rather than directly above it. Therefore, it can effectively prevent liquid from entering the air inlet through the first end of the tube 11 and flowing along the air inlet to the main unit or breathing tubing, thereby avoiding the risk of damage to the main unit due to liquid ingress or the risk of liquid entering the breathing tubing and being inhaled by the patient, extending the service life of the equipment and improving the safety of equipment use.

[0093] In some embodiments, the upper cover 23 is detachably connected to the upper cover connecting portion 12. Preferably, the upper cover 23 and the upper cover connecting portion 12 are detachably connected via a first snap-fit ​​structure.

[0094] Specifically, such as Figures 15-16 and Figures 23-24 As shown, the inner side of the upper cover 23 is provided with three first buckles 231, which are arranged at intervals as three adjacent sides of a square outline. The upper cover connecting part 12 has a connecting plane 121 that mates with the inner side of the upper cover 23. The connecting plane 121 is provided with three first slots 122, which are engaged with the three first buckles 231 one by one, thereby improving the reliability of the engagement while achieving quick release.

[0095] In some embodiments, the vent connector 13 is detachably connected to the vent 221. Preferably, the vent connector 13 and the vent 221 are detachably connected via a second snap-fit ​​structure.

[0096] Specifically, such as Figure 4 , Figures 11-12 and Figures 20-21As shown, the vent connection 13 is arranged around the second end of the pipe body 11 and includes a ring-shaped second buckle 131. The outer periphery of the vent 221 is provided with a ring-shaped second groove 225, and the second buckle 131 engages with the second groove 225, which improves the reliability and sealing of the engagement while achieving quick release.

[0097] In this invention, the upper cover 23 is preferably movably connected to the housing 22. More preferably, the upper cover 23 is rotatably connected to the housing 22.

[0098] In this invention, the shell 22 can be either a single piece or a separate piece. For example... Figures 14-15 In the embodiment shown, the housing 22 includes a lower housing 222, a middle housing 223 and a side plate 224. The liquid storage cavity 21 is defined by the lower housing 222. The middle housing 223 is disposed on the lower housing 222. The upper cover 23 is rotatably disposed on the middle housing 223. The side plate 224 is disposed on the middle housing 223 and the vent 221 is disposed on the side plate 224.

[0099] The lower shell 222 and the middle shell 223 can be integrally formed, or they can be formed separately and then fixedly connected together by welding, gluing, or other methods. The side plate 224 can be fixedly mounted on the side wall of the middle shell 223. In this case, to allow for the detachment of the venting pipe, the venting pipe can be detachably connected to the side plate 224. Alternatively, the side plate 224 can be detachably mounted on the side wall of the middle shell 223. In this case, the venting pipe can be fixedly connected to the side plate 224, forming a single unit with the side plate 224 that is detachable from the middle shell 223.

[0100] In this invention, the vent 221 is set on the side plate 224 of the middle shell 223, so that the vent 221 is located at a relatively high height, thus not occupying the space of the lower shell 222, thereby ensuring the space of the liquid storage chamber of the lower shell 221, so that the flowing gas can obtain a better humidification effect.

[0101] Specifically, such as Figures 14-15 and Figure 22 As shown, one side of the upper cover 23 is rotatably connected to the middle shell 223, and the other side of the upper cover 23 is provided with a latch 232. The lower shell 222 is provided with a latch 226 that matches the latch 232. When it is necessary to open the upper cover 23, first open the latch 232, and then rotate the upper cover 23 upward. By setting the latch 232 and the latch 226, the upper cover 23 and the lower shell 222 can be locked together, preventing the upper cover 23 from being opened accidentally.

[0102] In this utility model, such as Figure 15As shown, the humidifier 20 may also include a heat-conducting plate 24, a heat-conducting sealing ring 25, and an upper cover sealing ring 26. The heat-conducting plate 24 and the heat-conducting sealing ring 25 are installed on the lower shell 222. The heat-conducting plate 24 is used to transfer the heat from the heat source to the liquid storage chamber. The upper cover sealing ring 26 is installed between the middle shell 223 and the upper cover 23.

[0103] This utility model also provides a ventilation therapy device, including a main unit and a humidifier 20. The main unit is used to provide pressurized gas to the humidifier 20, and the pressurized gas is discharged after being humidified by the humidifier 20. The main unit has a main unit air inlet and a main unit air outlet (i.e., a connection port of the main unit). The main unit air inlet is connected to one of the humidifier's air inlets 221, and the main unit air outlet is connected to the other humidifier's air inlet 221.

[0104] The ventilation therapy device of this utility model, through the above technical solution, adopts a humidifier with an openable lid for adding liquid. The humidifier can be directly opened with the top cover to add liquid to the humidifier while it is installed with the main unit. At the same time, the internal ventilation pipeline can effectively prevent liquid from entering the main unit or breathing pipeline. While meeting product requirements, it solves the problems of manufacturability, usability, and safety, and can effectively reduce installation and maintenance costs, while increasing safety in use.

[0105] The ventilation therapy device may also include a patient interface and a breathing tubing, the breathing tubing being used to connect the patient interface and the main unit, and the patient interface being used to be worn on the patient's face.

[0106] The ventilation therapy equipment may be a ventilator, an oxygen therapy device, a high-flow humidified oxygen therapy device, etc.

[0107] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0108] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the different embodiments can be combined in any way.

Claims

1. A ventilation duct for a humidifier, characterized in that, The ventilation pipe (10) is used to connect the vent (221) of the humidifier (20) with the liquid storage chamber (21). The ventilation pipe (10) includes a pipe body (11), a top cover connection part (12) disposed at the first end of the pipe body (11), and a vent connection part (13) disposed at the second end of the pipe body (11). The top cover connection part (12) is used to connect with the top cover (23) of the humidifier (20), and the vent connection part (13) is used to connect with the vent (221). At least a portion of the pipe body (11) is configured to be deformable so that the ventilation pipe (10) remains connected to the vent (221) and the top cover (23) when the top cover (23) is open.

2. The ventilation duct for a humidifier according to claim 1, characterized in that, At least a portion of the pipe body (11) is configured to be telescopic and / or flexible, and / or The upper cover connecting part (12) can be detachably connected to the upper cover (23).

3. The ventilation duct for a humidifier according to claim 2, characterized in that, At least one section of the pipe body (11) is configured as a corrugated pipe section (111), and / or The upper cover connecting part (12) is provided with a buckle or a slot for buckling with the upper cover (23).

4. The ventilation duct for a humidifier according to claim 3, characterized in that, The pipe body (11) has a corrugated pipe section (111), preferably, the corrugated pipe section (111) is located in the middle of the pipe body (11); or The pipe body (11) has two corrugated pipe sections (111), preferably, the two corrugated pipe sections (111) are respectively disposed near the two ends of the pipe body (11).

5. The ventilation duct for a humidifier according to claim 3, characterized in that, At least the corrugated section (111) of the pipe body (11) is made of a flexible material, and / or The upper cover connecting part (12) has a connecting plane (121) for cooperating with the inner side of the upper cover (23), and at least one of the buckles or slots is provided on the connecting plane (121); preferably, three buckles or slots are provided on the connecting plane (121), and the three buckles or slots are arranged as three adjacent sides of a square outline.

6. The ventilation duct for a humidifier according to claim 1, characterized in that, The first end of the tube body (11) is provided with a first port (112), the opening direction of the first port (112) is at an angle to the axial direction of the tube body (11), preferably, the opening direction of the first port (112) is perpendicular to the axial direction of the tube body (11); and / or The second end of the tube body (11) is provided with a second port (113), and the opening direction of the second port (113) is the axial direction of the tube body (11).

7. The ventilation duct for a humidifier according to claim 1, characterized in that, The vent connector (13) can be detachably connected to the vent, and / or The tube body (11) has a variable diameter structure.

8. The ventilation duct for a humidifier according to claim 7, characterized in that, The vent connection part (13) is provided with a buckle or a slot for snap-fit ​​connection with the vent (221). Preferably, the buckle or slot is provided around the second pipe opening (113) located at the second end of the pipe body (11); and / or The cross-section of the first end of the tube (11) is larger than the cross-section of the rest of the tube (11).

9. The ventilation duct for a humidifier according to any one of claims 1-8, characterized in that, The ventilation pipe (10) includes two pipe bodies (11), the upper cover connecting part (12) of the two pipe bodies (11) is connected as one unit, and the ventilation port connecting part (13) of the two pipe bodies (11) is connected as one unit; preferably, the opening directions of the first pipe port (112) located at the first end of the two pipe bodies (11) are arranged opposite to each other.

10. A humidifier, characterized in that, The humidifier (20) includes a ventilation pipe for a humidifier as described in any one of claims 1-9. The humidifier (20) further includes a housing (22) defining a liquid storage chamber (21) and an upper cover (23) covering the housing (22). The housing (22) is provided with two vents (221) communicating with the liquid storage chamber (21). The vents (221) are connected to the liquid storage chamber (21) through the ventilation pipe (10). The upper cover connecting part (12) of the ventilation pipe (10) is connected to the upper cover (23), and the vent connecting part (13) of the ventilation pipe (10) is connected to the vents (221).

11. The humidifier according to claim 10, characterized in that, The upper cover (23) is detachably connected to the upper cover connecting part (12). Preferably, the upper cover (23) and the upper cover connecting part (12) are detachably connected by a first snap-fit ​​structure; and / or The vent connector (13) is detachably connected to the vent (221). Preferably, the vent connector (13) and the vent (221) are detachably connected by a second snap-fit ​​structure.

12. The humidifier according to claim 10 or 11, characterized in that, The upper cover (23) is rotatably connected to the housing (22), and / or The housing (22) includes a lower shell (222), a middle shell (223), and a side plate (224). The liquid storage cavity (21) is defined by the lower shell (222). The middle shell (223) is disposed on the lower shell (222). The upper cover (23) is disposed on the middle shell (223). The side plate (224) is disposed on the middle shell (223). The vent (221) is disposed on the side plate (224).

13. A ventilation therapy device, characterized in that, The device includes a main unit and a humidifier according to any one of claims 10-12, wherein the main unit is used to provide pressurized gas to the humidifier, and the pressurized gas is discharged after being humidified by the humidifier.

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