Hose switching ventilator mask and sleep apnoea treatment apparatus

Abstract

This utility model relates to the technical field of sleep apnea treatment equipment, and discloses a flexible tube switching ventilator mask and sleep apnea treatment equipment. The first end of the bent tube is provided with a first socket fastening connector, and the first end of the flexible tube is provided with a second socket fastening connector, the first and second socket fastening connectors having the same structure. The second end of the flexible tube is provided with a first sleeve fastening connector, and the pipe connector is provided with a second sleeve fastening connector, the first and second sleeve fastening connectors having the same structure. The first socket fastening connector of the bent tube and the first sleeve fastening connector of the flexible tube are matched and fastened together to achieve the connection between the bent tube and the flexible tube; the second socket fastening connector of the flexible tube and the second sleeve fastening connector of the pipe connector are matched and fastened together to achieve the connection between the flexible tube and the pipe connector; or the first socket fastening connector of the bent tube and the second sleeve fastening connector of the pipe connector are matched and fastened together to achieve the connection between the bent tube and the pipe connector.

Description

Technical Field

[0001] This utility model relates to the technical field of sleep apnea treatment devices, and in particular, to a hose-switchable CPAP mask. Furthermore, this utility model also relates to a sleep apnea treatment device including the aforementioned hose-switchable CPAP mask. Background Technology

[0002] The ventilator mask is an essential medical device for treating conditions such as sleep apnea, and its tubing connection structure directly affects patient comfort and treatment effectiveness. When the ventilator is in humidification and heating mode and using warm, moist airflow, water vapor easily condenses on the inner wall of the breathing tube due to the relatively low ambient temperature. If a connection with a flexible tube is used, the tube usually lacks heating functionality (adding a heating wire would cause the tube to harden and lose its flexibility). The warm, moist airflow encountering the cold inner wall of the tube accelerates condensation formation, which may then be blown onto the patient's face, causing discomfort. Therefore, in winter or low-temperature environments, users typically need to switch to a connection without a small flexible tube or use a more expensive heated breathing tube to avoid condensation problems.

[0003] Traditional ventilator masks typically feature a fixed tubing connection, meaning the mask and breathing tubing are permanently connected, preventing flexible switching between tubing-equipped and tubing-less configurations to meet individual needs. When a patient requires a change in connection, the entire mask must be replaced, leading to cumbersome procedures and potential oxygen supply interruptions during the process, thus impacting treatment effectiveness.

[0004] In the existing technology, there is a mask that can quickly detach the breathing tube. However, it can only disassemble and assemble the module, but it still cannot connect the hose. Therefore, it cannot freely switch between the hose and non-hose states, which makes it difficult to meet the needs of users in different usage scenarios. Utility Model Content

[0005] This invention provides a hose-switchable ventilator mask and a sleep apnea treatment device, which can quickly switch the hose connection state to solve the technical problem that ventilator masks cannot freely switch between hose and non-hose states, making it difficult to meet the needs of users in different usage scenarios.

[0006] According to one aspect of this utility model, a flexible tube switching ventilator mask is provided, including a bent tube, a flexible tube, and a tubing connector. The first end of the bent tube is provided with a first socket fastening connector, and the first end of the flexible tube is provided with a second socket fastening connector, the first and second socket fastening connectors having the same structure. The second end of the flexible tube is provided with a first sleeve fastening connector, and the tubing connector is provided with a second sleeve fastening connector, the first and second sleeve fastening connectors having the same structure. The first socket fastening connector of the bent tube and the first sleeve fastening connector of the flexible tube are matched and fastened together to achieve the connection between the bent tube and the flexible tube; the second socket fastening connector of the flexible tube and the second sleeve fastening connector of the tubing connector are matched and fastened together to achieve the connection between the flexible tube and the tubing connector; or the first socket fastening connector of the bent tube and the second sleeve fastening connector of the tubing connector are matched and fastened together to achieve the connection between the bent tube and the tubing connector.

[0007] Furthermore, the first socket-fitting joint includes a retaining ring, an opening groove, and a boss; the retaining ring is arranged along the circumference of the bend and is located away from the first end of the bend; the opening groove is opened from the first end of the bend along the axial direction towards the retaining ring, and the boss is arranged along the circumference of the bend and on the outer side wall of the first end of the bend, with the opening groove and the boss being staggered.

[0008] Furthermore, the first socket-fitting joint also includes a groove structure at the first end of the bend, the groove structure is arranged along the circumference of the bend, the boss is arranged in the groove structure, and the opening groove extends through the groove structure and extends in the direction of the limiting retaining ring.

[0009] Furthermore, the first socket-fitting joint also includes a positioning rib, which is arranged along the circumference of the bend and is located in the area between the limiting retaining ring and the opening groove; there may be one positioning rib or multiple positioning ribs arranged at intervals.

[0010] Furthermore, the distance between the first end of the bend and the limiting stop ring is 10mm-25mm.

[0011] Furthermore, the first set of fastening joints includes a joint base, a top abutment ring, and a snap ring; the top abutment ring is located at the end of the joint base, and the top abutment ring is used to increase the top abutment contact area and to cooperate with the top abutment limit of the first socket fastening joint; the snap ring is arranged along the circumference of the joint base on the inner wall surface of the joint base and is arranged away from the top abutment ring, and the snap ring is used to engage with the first socket fastening joint.

[0012] Furthermore, the bottom of the inner cavity of the connector base is provided with an abutment step, which is used to abut and limit the end of the first socket fastening connector.

[0013] Furthermore, the outer wall surface of the joint base is provided with reinforcing ribs, which are arranged in at least one of the following directions: circumferential, axial, or oblique.

[0014] Furthermore, one of the reinforcing ribs arranged circumferentially is arranged in a corresponding manner to the snap-fit ​​ring, with the ribs corresponding to each other both inside and out.

[0015] Furthermore, at least one corner of the snap ring is chamfered.

[0016] According to another aspect of the present invention, a sleep apnea treatment device is also provided, which includes the aforementioned hose-switchable ventilator mask.

[0017] This utility model has the following beneficial effects:

[0018] 1. Enables flexible switching between hose states. Through the matching connection of the first socket coupling and the second sleeve coupling, users can choose to directly connect the bend to the pipe connector (without hose state) or achieve a hose transition connection (with hose state) through the first socket coupling and the first sleeve coupling. The two connection methods can be switched without replacing the entire mask structure.

[0019] 2. Avoid the risk of oxygen supply interruption. The modular connector design allows the hose to be installed and removed without disassembling the mask body. The connection status can be switched by simply connecting the standardized fastening structure, which effectively solves the problem of long-term oxygen supply interruption caused by replacing the entire mask in traditional solutions.

[0020] 3. Compatible with different usage scenarios. When it is necessary to avoid condensation, a hose-free mode with a straight-connect pipe with a bend can be used; when it is necessary to improve airflow comfort, a buffer connection can be formed by adding a hose. Both modes share the same interface standard to ensure that the air circuit sealing is not affected by switching.

[0021] 4. Optimize the transmission of external forces. When the tube is in use, the flexible connection of the tube can absorb the traction force of the breathing tube, reduce the direct pulling of the rigid tube caused by changes in the patient's body position, and reduce the risk of mask leakage or displacement.

[0022] 5. Reduce user costs: A single mask body can achieve two connection methods through the matching connector, eliminating the need for users to purchase multiple masks and saving purchase costs and storage space.

[0023] 6. Maintain reliable gas connection. The standardized snap-fit ​​connector design ensures stable gas line sealing whether it is a direct connection or a hose transition connection, avoiding the risk of air leakage that exists in traditional detachable structures.

[0024] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0025] 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:

[0026] Figure 1 This is a schematic diagram of the structure of a hose-switchable ventilator mask according to a preferred embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the bent pipe according to a preferred embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the connection between the bent pipe and the flexible hose in a preferred embodiment of this utility model;

[0029] Figure 4 This is a schematic diagram of the connection between the flexible hose and the pipe connector according to a preferred embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the connection between the bend and the pipe connector in a preferred embodiment of this utility model.

[0031] Legend:

[0032] 100. Bend; 101. First socket-fitting joint; 1011. Limiting ring; 1012. Opening groove; 1013. Boss; 1014. Settling groove structure; 1015. Positioning rib; 200. Flexible hose; 201. Second socket-fitting joint; 202. First sleeve-fitting joint; 2021. Joint base; 2022. Top abutment ring; 2023. Snap-fit ​​ring; 2024. Abutment step; 2025. Reinforcing rib; 300. Pipe connector; 301. Second sleeve-fitting joint. Detailed Implementation

[0033] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0034] Figure 1 This is a schematic diagram of the structure of a hose-switchable ventilator mask according to a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the bent pipe according to a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the connection between the bent pipe and the flexible hose in a preferred embodiment of this utility model; Figure 4 This is a schematic diagram of the connection between the flexible hose and the pipe connector according to a preferred embodiment of the present invention; Figure 5 This is a schematic diagram of the connection between the bend and the pipe connector in a preferred embodiment of this utility model.

[0035] like Figure 1 As shown, the hose-switchable ventilator mask of this embodiment includes a bend 100, a hose 200, and a tubing connector 300. The first end of the bend 100 is provided with a first socket-fitting connector 101, and the first end of the hose 200 is provided with a second socket-fitting connector 201. The first socket-fitting connector 101 and the second socket-fitting connector 201 have the same structure. The second end of the hose 200 is provided with a first sleeve-fitting connector 202, and the tubing connector 300 is provided with a second sleeve-fitting connector 301. The first sleeve-fitting connector 202 and the second sleeve-fitting connector 301 have the same structure. The first socket-fitting connector 101 of the bend 100 and the first sleeve-fitting connector 202 of the hose 200 are matched and fastened together to connect the bend 100 and the hose 200. The second socket-fitting connector 201 of the hose 200 and the second sleeve-fitting connector 301 of the tubing connector 300 are matched and fastened together to connect the hose 200 and the tubing connector 300. Figure 1 and Figure 4 As shown; or the first socket-fitting connector 101 of the bend 100 and the second socket-fitting connector 301 of the pipe connector 300 are matched and engaged to achieve the connection between the bend 100 and the pipe connector 300, as shown. Figure 5 As shown. This utility model, a hose-switchable ventilator mask, achieves modular and rapid switching of ventilator mask tubing connections by setting standardized socket-fit connectors and sleeve-fit connectors. Through the matching connection of the first socket-fit connector 101 and the second sleeve-fit connector 301, the user can choose to directly connect the elbow 100 to the tubing connector 300 according to actual needs (in the case of no hose, such as...). Figure 5 (as shown), or through the first socket fastening connector 101 and the first sleeve fastening connector 202, the hose 200 is transitionally connected (with hose in the form of, such as) Figure 1As shown in the image, switching between the two connection methods can be completed without replacing the entire mask structure. The modular connector design allows the installation and removal of the hose 200 without disassembling the mask body; the connection state can be switched simply by quickly connecting the standardized snap-fit ​​structure, effectively solving the problem of prolonged oxygen supply interruption caused by replacing the entire mask in traditional solutions. It is compatible with different usage scenarios. When condensation needs to be avoided, the hose-less mode with the elbow 100 directly connecting to the tubing connector 300 can be used; when improved airflow comfort is required, a buffer connection can be formed by adding the hose 200. Both modes share the same interface standard, ensuring that the airway seal is not affected by switching. In the hose-equipped state, the flexible hose 200 can absorb the pulling force of the breathing tube, reducing the direct pulling of the rigid tube due to changes in patient position, and reducing the risk of mask leakage or displacement. A single mask body can achieve both connection methods through the matching connectors, eliminating the need for users to purchase multiple masks, saving purchase costs and storage space. The standardized snap-fit ​​connector design ensures stable air circuit sealing whether connected directly or via a 200mm hose transition, avoiding the leakage risks inherent in traditional detachable structures. Through this standardized and modular interface design, multiple technical issues raised in the background technology, such as condensation protection, comfort adjustment, and ease of operation, are fundamentally resolved.

[0036] like Figure 1 and Figure 2As shown, in this embodiment, the first socket fastening joint 101 includes a limiting retaining ring 1011, an opening groove 1012, and a boss 1013; the limiting retaining ring 1011 is arranged along the circumference of the bend 100 and is arranged away from the first end of the bend 100; the opening groove 1012 is opened from the first end of the bend 100 along the axial direction towards the limiting retaining ring 1011, and the boss 1013 is arranged along the circumference of the bend 100 and is arranged on the outer side wall of the first end of the bend 100, with the opening groove 1012 and the boss 1013 being staggered. The limiting ring 1011 is arranged circumferentially along the bend 100 and located away from the first end. It can form an axial limit with the corresponding structure (top abutment ring 2022) of the matching connector (first set snap-fit ​​connector 202 or second set snap-fit ​​connector 301) during docking, preventing the connector from axially loosening due to airflow pressure or external force after connection, and ensuring the stability of the air circuit connection. The opening groove 1012 extends axially from the first end of the bend 100 towards the limiting ring 1011, forming an insertion guide channel and / or realizing the radial elasticity of the first socket snap-fit ​​connector 101. This allows the matching connector (first set snap-fit ​​connector 202 or second set snap-fit ​​connector 301) to slide into the opening groove 1012 or achieve elastic snap-fit ​​between each other during connection, achieving rapid alignment and reducing assembly difficulty. The boss 1013 is arranged circumferentially on the outer wall of the bend 100, and engages with the groove or limiting structure (clamping ring 2023) of the matching connector (first set of engaging connector 202 or second set of engaging connector 301) to maintain the stability of the air passage direction. The opening groove 1012 and the boss 1013 are staggered to avoid mutual interference caused by local structural overlap, ensuring overall strength, maintaining lightweight design, and ensuring the feasibility of injection molding process. The staggered arrangement of the boss 1013 and the opening groove 1012 can avoid interference during docking, ensuring a tight fit between the inner wall of the matching connector (first set of engaging connector 202 or second set of engaging connector 301) and the outer wall of the bend 100, providing a uniform compression space for sealing between them and improving the reliability of the air passage seal. Optionally, the radial elasticity of the first socket-fitting joint 101 can be adjusted by changing the structure of the opening groove 1012; for example, the radial elasticity of the first socket-fitting joint 101 can be adjusted by designing the groove depth and / or groove width of the opening groove 1012; for example, the radial elasticity of the first socket-fitting joint 101 can be adjusted by designing the groove shape of the opening groove 1012 as a U-shaped groove, a semi-circular groove, a semi-elliptical groove, a rectangular groove, or a triangular groove.

[0037] like Figure 1 and Figure 2As shown, in this embodiment, the first socket-fitting connector 101 further includes a recessed groove structure 1014 located at the first end of the bend 100. The recessed groove structure 1014 is arranged circumferentially along the bend 100, and a boss 1013 is arranged within the recessed groove structure 1014. An opening groove 1012 penetrates the recessed groove structure 1014 and extends towards the limiting retaining ring 1011. The radially inwardly recessed structure formed by the recessed groove structure 1014 creates a natural taper at the first end of the bend 100. During the insertion process, it can automatically guide the matching connector to center and quickly snap into place, significantly reducing assembly difficulty and improving connection efficiency. The boss 1013 is located at the edge of the recessed groove structure 1014. Utilizing the supporting and guiding effect of the recessed groove structure 1014, combined with the gradual transition from small diameter to large diameter, it avoids stress concentration during assembly, effectively improving the shear resistance of the boss 1013 during repeated insertion and removal, and extending the service life of the connector. The radial recessed design of the countersunk groove structure 1014 facilitates snap-fit ​​engagement and also allows for the placement of sealing elements (such as O-rings), providing installation space and ensuring uniform pressure on the snap-fit ​​and / or sealing surfaces. The tapered structure also helps to gradually compress the seal during insertion, achieving a progressive seal. The design of the opening groove 1012 penetrating the countersunk groove structure 1014 retains the original guiding and radial elastic control functions, while also providing secondary positioning through the edge limiting action of the countersunk groove structure 1014, ensuring precise alignment of the connector in both the axial and circumferential directions. Simultaneously, the opening groove 1012 forms a gradually deforming groove structure with the countersunk groove structure 1014, avoiding stress concentration at this weak point and improving mechanical properties while maintaining the preset elasticity. The edge of the countersunk groove structure 1014 is equipped with bosses 1013, bringing the locking force application point close to the connection interface, effectively reducing the bending moment at the connection point and preventing loosening of the joint due to external forces. The tapered structure design of the 1014 sinkhole integrates multiple functions such as guiding, sealing and locking within a limited space, avoiding the problem of needing to increase the length of connecting parts in traditional solutions.

[0038] like Figure 1 and Figure 2As shown, in this embodiment, the first socket fastening joint 101 further includes a positioning rib 1015. The positioning rib 1015 is arranged along the circumference of the bend 100, and the positioning rib 1015 is located in the area between the limiting retaining ring 1011 and the opening groove 1012. There is one positioning rib 1015, or there are multiple positioning ribs 1015, and the multiple positioning ribs 1015 are arranged at intervals. The positioning ribs 1015 are arranged in a ring shape between the limiting retaining ring 1011 and the opening groove 1012, and are spaced apart along the axial direction. They are used to form multiple sealing and stopping effects between the joints (first socket joint 202 or second socket joint 301) that mate with the first socket joint 101, forming a multi-level sealing interface in the axial direction. Even if a single seal fails, basic airtightness can still be maintained, significantly improving connection reliability and preventing air leakage. The circumferentially continuous positioning ribs 1015 form a ring-shaped reinforcing structure, which significantly improves the resistance to deformation under radial force and prevents joint deformation or reduction of air passage cross-sectional area due to external extrusion. Through the synergistic effect of axial positioning and radial reinforcement, while maintaining the characteristics of quick assembly and disassembly, the joint has more precise assembly positioning capability and stronger structural stability, which is particularly suitable for application scenarios that require frequent assembly and disassembly or are subject to vibration. Optionally, when the positioning rib 1015 is used in conjunction with the opening groove 1012, the positioning rib 1015 can prevent stress concentration damage caused by forced insertion of the matching joint (first set of snap-fit ​​joint 202 or second set of snap-fit ​​joint 301) at the wrong angle; the rib area can only pass smoothly when the opening groove 1012 is aligned with the guide rib.

[0039] like Figure 1 and Figure 2 As shown, in this embodiment, the distance between the first end of the bend 100 and the limiting retaining ring 1011 is 10mm-25mm. Limiting the distance between the first end of the bend 100 and the limiting retaining ring 1011 to 10mm-25mm ensures that the limiting retaining ring 1011 can provide sufficient axial restraint force, while avoiding excessive length leading to material waste or excessive shortness affecting structural strength, thus achieving the best balance between strength and weight. The insertion depth range of 10mm-25mm ensures sufficient overlap length, providing sufficient mechanical strength and stability of the snap-fit ​​engagement, while also ensuring sealing between them, maintaining reliable sealing for long-term use. This allows the mating connector to obtain sufficient guiding length for self-alignment, without causing disassembly difficulties due to excessive insertion, achieving an "easy to install and disassemble" operating experience. This achieves an optimal balance between structural strength, sealing performance, and operational convenience.

[0040] like Figure 1 and Figure 3As shown, in this embodiment, the first socket-fitting connector 202 includes a connector base 2021, a top abutment ring 2022, and a snap-fit ​​ring 2023. The top abutment ring 2022 is located at the end of the connector base 2021 and is used to increase the top abutment contact area and to abut and limit the engagement with the first socket-fitting connector 101. The snap-fit ​​ring 2023 is arranged circumferentially on the inner wall surface of the connector base 2021 and away from the top abutment ring 2022. The snap-fit ​​ring 2023 is used to snap and engage with the first socket-fitting connector 101. Optionally, the bottom of the inner cavity of the connector base 2021 is provided with an abutment step 2024, which is used to abut and limit the engagement with the end of the first socket-fitting connector 101. By providing a top abutment ring 2022, a locking ring 2023, and an abutment step 2024 (optionally, the abutment step 2024 can also be removed) on the first socket-locking joint 202, a multi-level limiting and locking structure is formed. The top abutment ring 2022 increases the contact area with the first socket-locking joint 101, disperses the axial top abutment force, prevents deformation or wear caused by local stress concentration, and ensures that the limiting effect can still be maintained after long-term use. The locking ring 2023 is circumferentially arranged on the inner wall of the joint base 2021, and forms a radial locking with the boss 1013 and / or the groove structure 1014 of the first socket-locking joint 101, providing clear locking tactile feedback and preventing accidental disengagement due to vibration or pulling. The abutment step 2024 abuts against the end of the first socket-locking joint 101, forming a rigid stop, ensuring that the preset depth is reached every time the insertion is made, avoiding stress concentration damage caused by improper insertion depth, and ensuring the quickness and consistency of the insertion assembly. By employing the axial limiting of the top abutment ring 2022, the radial constraint of the snap-fit ​​ring 2023, and the depth control of the abutment step 2024, a triple anti-loosening guarantee is formed, significantly improving the reliability of the connection structure under dynamic usage environments. The enlarged contact surface of the top abutment ring 2022 and the rigid limiting design of the abutment step 2024 allow for reliable connection without precise control of insertion force during assembly, simplifying the operation process. The elastic deformation capacity of the snap-fit ​​ring 2023 can compensate for wear after long-term use, while the rigid limiting of the abutment step 2024 ensures that basic connection function is maintained even if the snap-fit ​​ring 2023 wears, extending service life. Through the synergistic effect of multiple constraints in the axial, radial, and depth directions, while maintaining quick assembly and disassembly characteristics, the technical problems of easy loosening and unstable sealing in traditional snap-fit ​​joints are solved.

[0041] like Figure 1 and Figure 3As shown in this embodiment, the outer wall surface of the connector base 2021 is provided with reinforcing ribs 2025, which are arranged in at least one direction: circumferential, axial, or oblique. The three-dimensional arrangement of the reinforcing ribs 2025 in the circumferential, axial, or oblique directions significantly improves the bending and torsional resistance of the connector base 2021, preventing plastic deformation during insertion / removal operations or pipe pulling, and ensuring the long-term reliability of the connection structure. The reinforcing ribs 2025 distribute external loads to the entire base, avoiding stress concentration in local areas (such as the root of the snap ring 2023), effectively reducing the risk of fatigue cracks caused by repeated stress, and extending the service life of the connector. While ensuring the same structural strength, the grid layout of the reinforcing ribs 2025 can reduce the base wall thickness, achieving precise optimization of material usage, meeting the lightweight requirements of medical equipment. The axial or oblique reinforcing ribs 2025 form a surface texture, increasing the coefficient of friction, facilitating force application, rotation, or insertion / removal operations, and are especially suitable for use with wet hands or while wearing gloves.

[0042] like Figure 1 and Figure 3 As shown, in this embodiment, one of the circumferentially arranged reinforcing ribs 2025 is arranged in a corresponding manner to the snap-fit ​​ring 2023. The corresponding arrangement of the reinforcing rib 2025 and the snap-fit ​​ring 2023 forms a double-layer reinforcing structure, which significantly improves the deformation resistance of the snap-fit ​​area, prevents the snap-fit ​​ring 2023 from breaking at the root due to repeated insertion and removal or external impact, and extends the service life of the joint. The circumferential reinforcing rib 2025 evenly distributes the radial biting force borne by the snap-fit ​​ring 2023 to the entire joint base 2021, avoiding stress concentration at the root of the snap-fit ​​ring 2023 and causing local plastic deformation, thus maintaining the snap-fit ​​reliability after long-term use. The corresponding design of the reinforcing rib 2025 and the snap-fit ​​ring 2023 forms a symmetrical temperature field and shrinkage field during injection molding, reducing the deformation of the inner and outer ring structures caused by uneven cooling, and ensuring the fitting accuracy of the snap-fit ​​ring 2023 and the first socket snap-fit ​​joint 101.

[0043] like Figure 3 As shown, in this embodiment, at least one corner of the snap ring 2023 is chamfered. The chamfered structure eliminates sharp edges at the corner of the snap ring 2023, avoiding local cracks or fractures caused by stress concentration, and significantly improving the fatigue resistance of the snap ring 2023 during repeated insertion and removal. The chamfer forms a guide slope, which guides the boss 1013 of the first socket engagement joint 101 to smoothly slide into the engagement position of the snap ring 2023 during the insertion process, reducing assembly resistance and achieving a self-aligning effect. The chamfered structure prevents the sharp edge of the snap ring 2023 from scratching the surface of the surrounding structure during assembly, protecting the integrity of the sealing interface and maintaining long-term airtightness. The chamfered transition makes the pressure distribution of the contact surface between the snap ring 2023 and the matching joint more uniform, preventing creep deformation caused by local pressure and ensuring stable snap-fit ​​even under vibration.

[0044] The sleep apnea treatment device of this embodiment includes the aforementioned hose-switchable ventilator mask.

[0045] In practice, a ventilator mask with a quick-switchable hose connection is provided. The mask structure includes a hose 200, a bend 100, a tubing connector 300, a support, a mask body, and a silicone pad. One end of the hose 200 is connected to the bend 100 via a snap-fit, and the other end is connected to the tubing connector 300. The hose connector 300 is connected to the ventilator heating tube, and both ends can be freely detached. After the hose 200 is detached, the bend 100 can also be connected to the tubing connector 300, and connected to the ventilator tubing through the tubing connector 300, thus achieving a connection without the hose 200. The connection structure between the hose 200 and the ventilator tubing connector 300 is the same as that of the bend 100, so a compatible design can be achieved.

[0046] At the connection point between the bend 100 and the hose 200, there are two protrusions 1013 at the bottom for engaging with the pipe connector 300 and the hose 200. There are two grooves (opening grooves 1012) between the two protrusions 1013 to facilitate the bending of the bend 100 into engagement during assembly and for later disassembly and replacement.

[0047] At the connection point between the hose 200 and the bend 100, there is a full circle of boss (clamping ring 2023) on the inner wall, which is used to engage with the bend 100. The boss (clamping ring 2023) has chamfered edges on both sides.

[0048] The end of the hose 200 that mates with the pipe connector 300 has the same structure as the end of the bend 100. It has two protrusions 1013 at the bottom for engaging with the pipe connector 300. There are two grooves (opening grooves 1012) between the two protrusions 1013.

[0049] One end of the tubing connector 300 has a raised ring (top abutment ring 2022) on the outer ring to limit the ventilator tubing, and the other end has a limiting raised ring (clamping ring 2023) on the inner wall to fasten and fix it to the bend 100 or the flexible tube 200. Specific implementation examples:

[0051] When assembling the structure with the tubing 200, first fasten and fix the tubing 200 to one end of the tubing 200 through the deformable boss (boss 1013) on the bend 100. Then fasten and fix the tubing connector 300 through the deformable boss (boss 1013) on the other end of the tubing 200. Finally, fix the tubing connector 300 to the ventilator connecting tube through an interference fit. When the tubing 200 needs to be replaced or removed, since the two ends of the tubing 200 are swivel-fit, the two ends of the tubing 200 can be pulled out by hand and replaced directly, or after pulling out the tubing 200, the tubing connector 300 can be fastened and fixed to the boss (boss 1013) on the bend 100. This allows for free switching between the tubing 200 and the tubing 200 without the tubing 200.

[0052] The beneficial effects of this invention's ventilator mask with quick-switchable hose connection status are as follows:

[0053] 1. Benefits of the 200mm flexible tube: It cushions the pulling force during movement, counteracting the pulling of the tube when the patient turns over or rotates their head, preventing the rigid breathing tube from directly transmitting external force and causing mask leakage or displacement. It increases freedom of movement; the flexible connection allows the patient's head to move freely within a wider range, significantly reducing mask pressure caused by changes in body position during sleep compared to a rigid direct connection (which has a smaller range of motion).

[0054] 2. Beneficial effects of the flexible tube 200: When using room temperature airflow, the flexible tube 200 is more likely to form a larger bending angle (closer to an S-shape), which can guide the airflow to be delivered to the nasal cavity more naturally and reduce the impact of the straight airflow on the nasal septum (which can reduce the incidence of nasal mucosal dryness).

[0055] 3. Benefits of not using the tubing 200: The direct connection structure of the breathing tube eliminates pressure loss caused by the tubing 200 and shortens the pressure response time, making it easier to handle sudden pressure demands during sleep apnea. Furthermore, when using humidified airflow and a heated breathing tube, condensation is less likely to occur.

[0056] 4. The pipe connector 300 is detachable and can be connected to the upper end of the airflow of the bend 100 or the hose 200. Users can quickly switch between "with hose 200" and "without hose 200" without changing the mask, so as to meet the diverse needs of users of different ages.

[0057] 5. Modularization: A single 100 bend can be matched with both 200 flexible hose designs and 200 designs without flexible hoses, saving parts, reducing mold costs, and lowering the cost of the product itself.

[0058] 6. Increase the scenarios in which face masks can be used to enhance the user experience.

[0059] Any matters not covered in this utility model are common knowledge.

[0060] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0061] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

[0062] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A soft hose switching respirator mask comprising an elbow (100), a hose (200) and a pipeline connector (300), characterized in that, The first end of the bend (100) is provided with a first socket fastening joint (101), and the first end of the hose (200) is provided with a second socket fastening joint (201). The first socket fastening joint (101) and the second socket fastening joint (201) have the same structure. The second end of the hose (200) is provided with a first set of fastening connector (202), and the pipe connector (300) is provided with a second set of fastening connector (301). The first set of fastening connector (202) and the second set of fastening connector (301) have the same structure. The first socket-fitting connector (101) of the bend (100) and the first sleeve-fitting connector (202) of the hose (200) are matched and engaged to achieve the connection between the bend (100) and the hose (200); the second socket-fitting connector (201) of the hose (200) and the second sleeve-fitting connector (301) of the pipe connector (300) are matched and engaged to achieve the connection between the hose (200) and the pipe connector (300); or The first socket-locking joint (101) of the bend (100) and the second socket-locking joint (301) of the pipe connector (300) are matched and locked together to realize the connection between the bend (100) and the pipe connector (300).

2. The hose switching ventilator mask of claim 1, wherein, The first socket fastening joint (101) includes a limiting retaining ring (1011), an opening groove (1012), and a boss (1013). The limiting ring (1011) is arranged along the circumference of the bend (100), and the limiting ring (1011) is arranged away from the first end of the bend (100); The opening groove (1012) is opened from the first end of the bend (100) along the axial direction towards the limiting ring (1011), and the boss (1013) is arranged along the circumference of the bend (100) and on the outer side wall of the first end of the bend (100). The opening groove (1012) and the boss (1013) are arranged in a staggered manner.

3. The hose switching ventilator mask of claim 2, wherein, The first socket fastening joint (101) also includes a groove structure (1014) at the first end of the bend (100). The groove structure (1014) is arranged along the circumference of the bend (100), the boss (1013) is arranged in the groove structure (1014), and the opening groove (1012) penetrates the groove structure (1014) and extends in the direction of the limiting retaining ring (1011).

4. The hose switching ventilator mask of claim 3, wherein, The first socket fastening joint (101) also includes a positioning rib (1015), which is arranged along the circumference of the bend (100) and is located in the area between the limiting retaining ring (1011) and the opening groove (1012). There is one positioning rib (1015) or multiple positioning ribs (1015) arranged at intervals.

5. The hose-switching ventilator mask of claim 2, wherein, The distance between the first end of the bend (100) and the limiting retaining ring (1011) is 10 mm to 25 mm.

6. The hose-switchable ventilator mask according to any one of claims 1 to 5, characterized in that, The first set of snap-fit ​​connectors (202) includes a connector base (2021), a top abutment ring (2022), and a snap-fit ​​ring (2023). The top abutment ring (2022) is located at the end of the connector base (2021). The top abutment ring (2022) is used to increase the top abutment contact area and cooperate with the first socket fastening connector (101) for top abutment and limiting. The snap ring (2023) is arranged along the circumference of the connector base (2021) on the inner wall surface of the connector base (2021) and away from the top abutment ring (2022). The snap ring (2023) is used to snap into the first socket fastening connector (101).

7. The hose-switchable ventilator mask according to claim 6, characterized in that, The bottom of the inner cavity of the connector base (2021) is provided with an abutment step (2024), which is used to abut and limit the end of the first socket fastening connector (101).

8. The hose switching ventilator mask of claim 6, wherein, The outer wall surface of the joint base (2021) is provided with reinforcing ribs (2025), which are arranged in at least one direction, such as circumferential, axial or oblique.

9. The hoseless ventilator mask of claim 8, wherein, One of the reinforcing ribs (2025) arranged in a circumferential direction is arranged in a corresponding manner with the snap ring (2023) on the inside and outside.

10. The hose switching ventilator mask of claim 6, wherein, The corner of at least one side of the snap ring (2023) is chamfered.

11. A sleep apnoea treatment apparatus characterised by Includes the hose-switchable ventilator mask according to any one of claims 1 to 10.

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