Connecting piece for breathing machine frame

Abstract

The invention relates to the technical field of respiratory therapy, and particularly discloses a connecting piece which is installed on a frame in a mask combination for treating sleep breathing disorder and detachably connected with a mask and an elbow, the connecting piece can be matched with different masks and elbows, is good in universality, can provide more choices for patients, and is easy to clean while the exhaust effect is guaranteed. The risk that a patient is infected with molds, pathogens and the like can be reduced. The connecting piece comprises a first interface end used for being assembled and communicated with the mask, a second interface end used for being assembled and communicated with the elbow, and an annular channel communicating the first interface end and the second interface end and allowing pressurized air to pass through to enter an airway of a patient. The axis of the connecting piece coincides with the axis of the gas outlet of the elbow, and the connecting piece penetrates through the central opening of the frame and is fixedly connected with the frame; the wall thickness of at least part of the connecting piece is smaller than 3 mm, the length of the connecting piece is 3-50 mm, and the inner diameter of the connecting piece is not larger than 80 mm.

Description

Technical Field

[0001] The present invention relates to the technical field of respiratory therapy, especially the treatment field of sleep disordered breathing such as obstructive sleep apnea (OSA), and particularly relates to a connector which is mounted on a frame in a mask assembly for treating sleep disordered breathing and is detachably connected to the mask and an elbow. Background Art

[0002] Sleep apnea treatment is an important medical means for alleviating sleep disordered breathing such as obstructive sleep apnea (OSA). Common OSA symptoms include nocturnal apnea and snoring, daytime sleepiness and fatigue, inattention, etc. These symptoms may have a serious impact on the patient's health and quality of life, and even increase the risk of chronic diseases such as heart disease, hypertension, and diabetes. Treatment methods for OSA include lifestyle changes, ventilator treatment (such as continuous positive airway pressure, CPAP), etc. Among them, continuous positive airway pressure (Continuous Positive Airway Pressure, abbreviated as CPAP) is a commonly used treatment method. By a certain airflow pressure, it keeps the upper airway of the patient unobstructed, prevents the occurrence of apnea, and thus improves the sleep quality and alleviates related symptoms. Its specific form is to connect to the patient's airway through a mask, nasal mask or nasal pillow type patient interface device. The positive pressure air continuously output by the CPAP device generally reaches the sealed airtight chamber formed by the mask and the frame through a hose and an elbow to the patient's airway in a non-invasive manner. The airtightness and comfort of the mask are the key points in the treatment process, and the frame and the connectors related to the frame are important structural components that dominate the airtightness and comfort of the mask.

[0003] The process of the continuous and stable positive pressure airflow output by the ventilator flowing through the hose, through the elbow, and reaching the closed area where the mask engages with the face involves three components: the elbow, the frame, and the mask. There are several different joining methods for these three components, and different joining methods may cause a certain amount of leakage of the airflow towards the gap between two of the components. The basic requirements for the components of the gas flow channel are good sealing, reliability, long service life, and a compact structure and simple system are also sought. Most of the components of the gas flow channel are also vulnerable to damage. In the components for the treatment of sleep apnea, manufacturers generally ensure the sealing of gas circulation through sealing grooves and sealing gaskets formed integrally with the elbow or the mask. Due to the different facial characteristics of different people and their different perceptions of pressure and the contact part of the breathing mask, patients often need to choose a suitable breathing mask according to their own characteristics and comfort. The existing designs of mask frames on the market can only be individually adapted to one mask and one elbow, with insufficient universality of components, increasing the production and mold opening costs of the manufacturer; and patients cannot select the components of the mask system according to their own preferences, to a certain extent reducing the treatment experience and compliance of patients. Some patients may become bored with the treatment because of this, reducing their enthusiasm for using the device.

[0004] In addition, the exhaust port, as an indispensable part of most treatment device components, is used to discharge waste gases such as carbon dioxide exhaled by the patient. Its position and design method directly affect the flow of the airflow and the breathing experience of the patient. In the existing design, the exhaust port is usually located on the mask or the elbow. When the exhaust port is directly set on the mask, the position of the exhaust port may cause disturbance and noise of the airflow due to its inconsistency with the direction of the exhaled gas, affecting the patient's sleep quality and treatment experience, and may also lead to poor airflow or increased expiratory resistance; while when the exhaust port is set on the elbow, it can avoid the accumulation of carbon dioxide or other exhaled waste gases in the sealed air chamber, achieve better airflow control and reduce noise, thereby maintaining the normal circulation of the airflow and the breathing effect. However, most of the existing elbows on the market are such that the exhaust port and the elbow form an elbow component through an irreversible connection. Although it can achieve the purpose of discharging waste gases, due to the large size and complex structure of the component, it increases the weight of the treatment system that the patient needs to wear, and it is difficult to clean. Water vapor, fine particles, etc. discharged during the exhalation process may accumulate inside the elbow, breeding bacteria, molds, and other pathogens, thus increasing the risk of user infection. Summary of the Invention

[0005] Based on this, it is necessary to address the above deficiencies and provide a connector for a ventilator frame. This connector is assembled with the mask and the elbow in a detachable connection manner, can be adapted to different masks and elbows, has good universality, can provide more choices for patients, and while ensuring the exhaust effect, is easy to clean and can reduce the risk of patients being infected with molds and pathogens, etc.

[0006] A connector for a ventilator frame, which is used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas, and is characterized by comprising a first interface end for assembling and communicating with the mask, a second interface end for assembling and communicating with an elbow, and an annular passage connecting the first interface end and the second interface end and allowing pressurized air to pass through to enter the patient's airway;

[0007] The axis of the connector coincides with the axis at the gas outlet of the elbow, and the connector passes through the central opening of the frame and is fixedly connected to the frame to prevent the connector from sliding or rotating relative to the frame;

[0008] At least part of the wall thickness of the connector is less than 3 mm, the length of the connector is 3 - 50 mm, and the outer perimeter of the part of the connector that mates with the frame is less than the inner perimeter of the central opening of the frame.

[0009] In one embodiment, the overall length of the connector is greater than the wall thickness at the central opening of the frame.

[0010] In one embodiment, the first interface end is detachably connected to the mask, the second interface end is detachably connected to the elbow, and the connector is connected to the elbow and the mask to form a seal.

[0011] In one embodiment, the outer perimeter of the second interface end is less than the outer perimeter of the first interface end.

[0012] In one embodiment, the central axis of the connector is configured to form an angle of 10° - 90° with the axis of symmetry of the frame.

[0013] The present invention also discloses a connector for a ventilator frame, which is used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas, and is characterized by comprising a first interface end for assembling and communicating with the mask, a second interface end for assembling and communicating with an elbow, and an annular passage connecting the first interface end and the second interface end and allowing pressurized air to pass through to enter the patient's airway;

[0014] The axis of the connector coincides with the axis at the gas outlet of the elbow, and the connector passes through the central opening of the frame and is fixedly connected to the frame to prevent the connector from sliding or rotating relative to the frame;

[0015] The length of the connector is 3 - 50 mm; the inner diameter of the connector is not greater than 80 mm; the ratio between the opening area of the second interface end and the outer surface area of the frame is at least 1:20.

[0016] In one embodiment, the frame is made of a rigid material or a semi-rigid material.

[0017] In one embodiment, at least a portion of the frame contacts the patient's face; the frame is configured to cover at least a portion of the face mask when the frame is engaged with the face mask.

[0018] In one embodiment, a gasket is provided between the first interface end and the second interface end of the connecting member, and a notch is provided at the edge of the central opening of the frame on the side facing the second interface end of the connecting member. The gasket is embedded in the notch when the connecting member and the frame are assembled.

[0019] In one embodiment, a first protrusion is provided on the outer surface of the first interface end, and a second protrusion is provided on the outer surface of the second interface end. A limiting protrusion is provided between the first protrusion and the gasket. A limiting groove that engages with the inner edge of the central opening of the frame in a concave-convex manner is formed between the limiting protrusion and the gasket, and at least one of the sides of the limiting protrusion adjacent to and away from the second interface end is a slope.

[0020] In one embodiment, one or more interlocking interfaces that engage with the second protrusion in a concave-convex manner to form a sealed connection are provided at the central opening of the frame.

[0021] The present invention also discloses a connecting member for a ventilator frame, which is used to connect a face mask system and form a passage for transmitting positive pressure air or breathable gas. The connecting member is characterized in that it is configured to be detachably connected to the frame in the face mask system by means of threading or surface contact;

[0022] The connecting member is provided with a first interface end for assembling and communicating with the face mask and a second interface end for assembling and communicating with the elbow. The connecting member is provided with an exhaust port that penetrates the inner surface and the outer surface of the connecting member and communicates with the external environment to allow the gas inside the connecting member to flow to the external environment. The outer perimeter of the portion of the connecting member that mates with the frame is smaller than the inner perimeter of the central opening of the frame for accommodating the connecting member;

[0023] The exhaust port has at least one of the following characteristics:

[0024] The number of exhaust ports is at least 1;

[0025] The diameters of both ends of the exhaust port are different;

[0026] The total area of the exhaust ports accounts for 3%-90% of the outer surface area of the connecting member.

[0027] In one embodiment, when the number of exhaust ports is greater than 1, the exhaust ports are evenly or unevenly distributed along the annular channel of the connecting member.

[0028] In one embodiment, the included angle between the axial direction of the exhaust port and the axial direction of the connecting member is between 0° and 90°.

[0029] In one embodiment, the exhaust port is of a circular, oval, semi-circular or square structure.

[0030] The present invention also discloses a connecting member for a ventilator frame, which is used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas. The connecting member is characterized in that it is configured to be connected to the frame in the mask system by means of threading or surface contact;

[0031] The connecting member is provided with a first interface end for assembling and communicating with the mask and a second interface end for assembling and communicating with the elbow. The connecting member is provided with a plurality of exhaust ports that penetrate the inner surface and the outer surface of the connecting member and communicate with the external environment to allow the gas inside the connecting member to flow to the external environment. Each of the exhaust ports is distributed along the annular channel of the connecting member;

[0032] The outer surface of the connecting member is provided with a noise reduction member. The noise reduction member includes noise reduction materials corresponding to the exhaust ports. The noise reduction materials have at least one of the following characteristics:

[0033] The density range of the noise reduction material is 0.8 - 1.8 g / cm 3 ;

[0034] The surface area of the noise reduction material accounts for 3% - 90% of the outer surface area of the connecting member;

[0035] The thickness range of the noise reduction material is 0.1 - 0.5 mm.

[0036] In one embodiment, the noise reduction material is of a mesh structure or a cotton-like structure.

[0037] In one embodiment, the noise reduction material is cotton, nylon, or natural fabric.

[0038] In one embodiment, the noise reduction member is of a mesh structure, a grid-like structure or a partition part with several micropores; the noise reduction member used to cover the exhaust port on the connecting member is made of polypropylene, polyethylene, polyester, nylon or natural fabric.

[0039] In one embodiment, the noise reduction member includes an external connection part, and the external connection part is snap-connected or magnetically connected to the connecting member.

[0040] The present invention also discloses a connecting member for a ventilator frame, which is used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas. The connecting member is characterized in that it is configured to be connected to the frame in the mask system by means of threading or surface contact;

[0041] The connecting piece is provided with a first interface end for assembling and communicating with the face mask and a second interface end for assembling and communicating with the elbow. The connecting piece is provided with a plurality of exhaust ports that penetrate the inner surface and the outer surface of the connecting piece and communicate with the external environment to allow the gas inside the connecting piece to flow to the external environment. Each of the exhaust ports is distributed around the annular channel of the connecting piece;

[0042] The connecting piece has at least one of the following characteristics:

[0043] The volume ratio of the connecting piece to the frame is 1:1.8 - 1:14;

[0044] The length range of the connecting piece is 1 - 100 mm;

[0045] The weight of the connecting piece is 1 - 5 g.

[0046] In one embodiment, the outer diameter of the first interface end is 10 - 80 mm, the outer diameter of the second interface end is 10 - 80 mm, and the wall thickness range of the connecting piece is 0.3 - 5 mm.

[0047] In one embodiment, the cross-section of at least one end of the connecting piece is circular.

[0048] In one embodiment, at least a part of the connecting piece can be deformed.

[0049] In one embodiment, the connecting piece is made of one or two materials selected from polycarbonate, polyethylene, polypropylene, and silica gel.

[0050] In one embodiment, the face mask system includes the connecting piece, the frame, the face mask, and the elbow; the connecting piece and the frame are detachably connected by snap fit, rotational fit, or magnetic attraction, or the connecting piece is fixedly connected to the frame by ultrasonic or adhesive; the connecting piece and the face mask are connected by snap fit, rotational fit, or magnetic attraction, and the connecting piece and the elbow are connected by snap fit, ball-and-socket rotation, or hinge.

[0051] Implementing the connecting piece for the ventilator frame of the present invention can at least achieve the following beneficial effects:

[0052] 1) It can be paired with masks and / or elbows of different functions, structures, and models, with low product R & D costs, shortened R & D cycles, and raw material savings: The modular design of independent production and recombination of the connector and the frame enables the detachable connection between the frame and the mask and elbow, facilitating patients to adapt the frame to different types of masks / elbows by replacing different types of connectors according to different situations; The modular design makes the connector form an independent module relative to each part of the product, which can be designed, developed, tested, and maintained separately. Modifications and replacements only require changing the corresponding connector module without affecting the entire system, thus saving raw materials and production costs, facilitating product maintenance, shortening the R & D time cost and manufacturing cycle of the product, and being conducive to improving product quality and iteration to cope with rapid market changes.

[0053] 2) Easy to maintain and low manufacturing cost: The separate mold design of the connector reduces the complexity of the product system at the same time. The entire product is more controllable for patients. The entire system is separately divided into several separate modules. When a module has problems, it is easier to isolate and solve, thus reducing the risk of failure. The impact during replacement is smaller, which is more environmentally friendly, saves resources, and realizes green and sustainable design. The design of separating the frame and the connector simplifies the structure, making the mold manufacturing correspondingly simple, reducing the corresponding mold manufacturing cost, and also reducing the production cycle, saving the R & D cycle and cost.

[0054] 3) Easy to clean: Attach the connector to the frame to form a modular exhaust connector. When the patient cleans, the detachable structure has no complex structure relative to the overall component, and the cleaning is cleaner and simpler, reducing the probability of bacterial growth and protecting the patient's health.

[0055] 5) Separate the exhaust port from the mask or elbow to form a replaceable connector with an exhaust port that can be replaced separately. By the method of separately molding this connector and then fixedly installing it on the frame, patients can solve different requirements for the exhaust port by replacing the corresponding connector; The modular designed connector enables patients to focus on specific connectors rather than the entire respiratory accessory system, enabling rapid replacement and rapid adaptation to emerging masks or elbows in the market, improving the versatility and reliability of the connector, reducing the discard rate of respiratory accessories by patients, reducing carbon emissions, having a beneficial impact on climate change, and being conducive to environmental protection. Description of the Drawings

[0056] Figure 1 It is a schematic structural diagram of the connector and the frame in the connected state in Embodiment 1 of the present invention;

[0057] Figure 2 It is a schematic structural diagram of the connector and the frame in the exploded state in Embodiment 2 of the present invention;

[0058] Figure 3 Schematic diagrams of the connection members in multiple embodiments of the present invention;

[0059] Figure 4 Schematic diagrams of the connection members in Embodiment 1 of the present invention when paired with different styles of face masks;

[0060] Figure 5 Schematic diagrams of the connection members in Embodiment 1 of the present invention when paired with different styles of elbows;

[0061] Figure 6 Schematic diagrams of the connection members in Embodiment 1 of the present invention when paired with different styles of face masks and elbows;

[0062] Figure 7 Schematic diagrams of different connection methods between the connection members and the frame in Embodiment 1 of the present invention;

[0063] Figure 8 Schematic diagrams of the assembled connection members, frame, elbows, and face masks in Embodiment 1 of the present invention;

[0064] Figure 9 Schematic diagrams of the usage scenarios of the connection members, frame, elbows, and face masks in Embodiment 1 of the present invention;

[0065] Figure 10 Schematic diagrams of the connection members and several different types of frame structures in Embodiment 1 of the present invention;

[0066] Figure 11 Cross-sectional structure schematic diagrams of the connection members when connected to the frame in Embodiment 2 of the present invention;

[0067] Figure 12 Schematic diagrams of the structure of the connection members adapted to the face masks in Embodiment 1 of the present invention;

[0068] Figure 13 Schematic diagrams of several different structures of the connection members in Embodiment 1 of the present invention;

[0069] Figure 14 Stereoscopic schematic diagrams of the connection members in Embodiment 3 of the present invention and cross-sectional schematic diagrams of the assembled connection members, frame, and elbows;

[0070] Figure 15 Stereoscopic schematic diagrams of the connection members in Embodiment 4 of the present invention and cross-sectional schematic diagrams of the assembled connection members, frame, and elbows;

[0071] Figure 16 Stereoscopic schematic diagrams of another form of the connection members in Embodiment 3 of the present invention and cross-sectional schematic diagrams of the assembled connection members and elbows;

[0072] Figure 17Schematic perspective view of another form of the connecting member in Embodiment 3 of the present invention and schematic cross-sectional view after the connecting member and the elbow are assembled;

[0073] Figure 18 Schematic structural views of various forms of the connecting member in Embodiment 4 of the present invention;

[0074] Figure 19 Schematic structural view of the connecting member, the frame, the face mask, and the elbow in an exploded state in Embodiment 5 of the present invention;

[0075] Figure 20 Schematic view of the included angle between the central axis of the connecting member and the symmetry axis of the frame in Embodiment 1 of the present invention. Detailed implementation manners

[0076] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0077] During the process of respiratory therapy, due to the different facial features of different people and the different perceptions of pressure and the contact part of the respiratory mask, when patients use the respiratory mask system, they need to select a suitable respiratory mask according to their own facial features and comfort. However, the existing mask frame design can only be individually adapted to one mask and one elbow, and there is a lack of a design in the market that can be easily adjusted and replaced to meet the different needs of patients; in addition, the exhaust holes of the traditional respiratory mask system are mostly provided on the elbow or the mask and are integrally formed. When the patient needs to replace the exhaust port, they can only choose to replace the whole mask or elbow. This replacement method is not only unfavorable to the environment but also extremely uneconomical for the patient, and the design of the exhaust hole on the elbow or the mask is not conducive to increasing the corresponding noise reduction function.

[0078] In view of the above problems, the present invention provides a modular connector applied to a frame that can adapt to different masks and elbows. This connector not only improves the airtightness of the pressured air flowing through the elbow and the mask, but also effectively enhances the comfort of the patient during CPAP treatment and simplifies production. In addition, to solve the problems of exhaust and noise reduction of the respiratory mask system, the present invention further makes various improvements on the basis of this modular connector, so that the connector has both exhaust and noise reduction functions while adapting to masks and elbows of different models, structures and functions, ensuring smooth exhaust, reducing the difficulty of setting the noise reduction unit, and facilitating the patient to clean the components after use to avoid the growth of mold and bacteria caused by the long-term retention of water vapor generated by breathing in the tube, which is conducive to maintaining the cleanliness of the equipment and ensuring the safety of the patient using the equipment and their own health. The following describes several structures of the connector for the respiratory frame of the present invention with specific examples.

[0079] Embodiment 1

[0080] Please refer to Figure 1 and Figures 4 - 10, this embodiment discloses a connector 1 for a ventilator frame. The connector 1 is used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas, and includes a first interface end 11 for assembling and communicating with a mask 2, a second interface end 12 for assembling and communicating with an elbow 3, and an annular channel 13 that communicates the first interface end 11 and the second interface end 12 and allows pressurized air to pass through and enter the patient's airway. The axis of the connector 1 coincides with the axis at the gas outlet of the elbow 3. The gas outlet of the elbow 3 is the interface where the gas flows out of the elbow 3 and enters the connector 1 after receiving the pressurized gas, that is, the opening at the connection end of the elbow 3 with the connector 1. That is to say, when both the connector 1 and the elbow 3 are circular tubular structures, the gas outlet end of the elbow 3 is coaxial with the connector 1, so that the gap width at each part of the connection between the connector 1 and the elbow 3 is the same, to avoid loosening at the connection part between the connector 1 and the elbow 3. The connector 1 passes through the central opening 40 of the frame 4 and is fixedly connected to the frame 4 to prevent the connector 1 from sliding or rotating relative to the frame 4, so that the elbow 3 and the hose swing and interfere with the patient's activities or cause discomfort, and to avoid loosening at the connection part between the connector 1 and the frame 4 due to relative sliding between the connector 1 and the frame 4, and further prevent the connector 1 from pulling the mask 2, resulting in the mask 2 falling off the patient's face, so as to ensure the normal progress of the patient's respiratory treatment. In addition, this connector 1 is configured to be fixed on the frame 4 and, together with the frame 4 and the headband, jointly act to stably limit the mask 2 on the patient's face, so as to transmit the force of the headband to the mask 2 to form a seal. The connector 1 connects the elbow 3 and the mask 2 and jointly constitutes a non-invasive sealing method to deliver the pressurized gas output by the ventilator to the patient's airway, so as to achieve the treatment effect. Specifically, the frame 4 is connected to the connector 1 to fix the mask 2, and they are jointly constructed as a continuous negatively curved surface with a C-shaped cross-section, so as to form a complementary shape to the outer contour of the mask 2 and fit the mask 2 in shape, and make the mask 2 comfortably form a closed gas space with the patient's face.

[0081] In this embodiment, the frame 4 is made of a rigid material or a semi-rigid material. When the frame 4 is made of a rigid material, the mechanical strength of the frame 4 is ensured, and the frame 4 is prevented from being broken or damaged during use; when the frame 4 is made of a semi-rigid material, it is convenient for the frame 4 to generate a small deformation during installation to adapt to the patient's face, improving the fitting degree of the frame 4 with the patient's face and the comfort of the patient wearing the mask 2 and the frame 4. Please refer to Figure 8 and Figure 9, during use, by means of the hook portion 411 of the forehead support arm 41 on the frame 4 and the side arm connection openings 421 of the two side arms 42, a support belt, a magnetic buckle or a releasable clip formed of a flexible material can be used to surround the head with the integral component formed by the frame 4 and the connecting member 1 and apply a certain pressure to the face mask 2, so that the face mask 2 gradually fits the patient's face. At least a part of the frame 4 is in contact with the patient's face; the frame 4 is configured to cover at least a part of the face mask 2 when the frame 4 is engaged with the face mask 2.

[0082] The wall thickness of at least a part of the connecting member 1 is less than 3 mm, the length of the connecting member 1 is 3 - 50 mm, and the outer perimeter of the portion of the connecting member 1 that cooperates with the frame 4 is less than the inner perimeter of the central opening 40 of the frame 4. Thus, the connecting member 1 can smoothly pass through the central opening 40 of the frame 4 and be fixedly fitted with the frame 4, and when the connecting member 1 is connected to the frame 4, at least a part of the outer wall of the connecting member 1 fits the inner wall of the hole of the central opening 40, thereby providing a sealed passage for the pressurized air. Further, the overall length of the connecting member 1 is greater than the wall thickness at the central opening 40 of the frame 4; the maximum wall thickness of the frame 4 is not greater than 2 mm. That is to say, the length of the shortest part of the connecting member 1 is still greater than the wall thickness at the central opening 40 of the frame 4. In this way, on the premise of satisfying that the connecting member 1 passes through the central opening 40 of the frame 4, conditions are provided for the adaptation of the connecting member 1 to the face mask 2 and the elbow 3, that is, the connecting member 1 can be connected to the face mask 2 and the elbow 3 after passing through the central opening 40 of the frame 4. Preferably, the wall thickness of each part of the connecting member 1 is less than 2 mm. In this way, the overall weight of the connecting member 1 can be effectively controlled, and the burden on the patient when wearing the respiratory mask system can be reduced.

[0083] In this embodiment, the first interface end 11 is detachably connected to the face mask 2, and the second interface end 12 is detachably connected to the elbow 3. The connecting member 1 is connected to the elbow 3 and the face mask 2 to form a seal. The face mask system includes a connecting member 1, a frame 4, a face mask 2, and an elbow 3. The connecting member 1 and the frame 4 are detachably connected by snap fit (corresponding grooves are provided on the frame 4, and corresponding protrusions are provided on the connecting member 1, and fixation occurs through slight deformation of at least the connecting member 1), rotational fit, or magnetic attraction (connected by respectively arranging positive and negative magnets on the frame 4 and the connecting member 1). This non-integrated design helps to replace different combinations of the frame 4 and the connecting member 1, facilitating the patient to quickly release and disassemble the frame 4 components, and facilitating the modularization of the frame 4 components and reducing the production cost of the components and saving raw materials. The connecting member 1 and the face mask 2 are connected by snap fit (corresponding grooves or protrusions are provided on the face mask 2, and the connecting member 1 is fixed through slight deformation), rotational fit, or magnetic attraction. The connecting member 1 and the elbow 3 are connected by snap fit, ball socket rotation, or hinge, and can also be connected by magnetic attraction or a clip (through a pinching mechanical structure, the elbow 3 is released onto the interface of the frame 4). Both the face mask 2 and the elbow 3 form a releasable connection (detachable connection) on the connecting member 1, which helps to improve the reliability of the seal, extend the service life of the product, and protect the environment. And this design of ensuring the sealing structure on a single component not only improves the sealing performance itself, but also simplifies the structure and production process. The connecting member 1 and the frame 4 are connected through the central opening 40 of the frame 4, which is used to allow pressurized gas to pass through the elbow pipe and form a relatively sealed passage between the connecting member 1 and the face mask 2 to the patient's airway. Patients may have different choices for different connection methods. Therefore, the different connection methods of the connecting member 1 provided on the frame 4 increase the diversity of combinations and provide a wider range of selection space for patients.

[0084] According to different usage scenarios, the connecting member 1 can be adapted to different types of frames 4. Specifically, please refer to Figure 10 , this embodiment shows the connecting member 1 connecting different types of frames 4. Compared with the elbow 3 and the face mask 2, a variety of frames on the market also provide different choices for patients. The detachable characteristic between the connecting member 1 and the frame 4 determines that diverse connecting members 1 can not only be adapted to different elbows 3 and face masks 2, but also can choose to combine different types of connecting members 1 according to different frame 4 interface types to form a new integrated frame. This diverse and flexible design makes the user's choice more convenient and simple. In addition, the connecting member 1 can be fixed to the frame 4 by a variety of different connection methods. Specifically, please refer to Figure 7 , which shows different connection methods between the connecting member 1 and the frame 4. The connecting member 1 and the frame 4 can be connected by various methods such as A snap fit, B insertion, and C ball socket, not necessarily limited to the above single connection method, and can also be assembled by using two or more of the above connection methods.

[0085] The connecting member 1 can be used with a variety of different styles of face masks 2. Specifically, please refer to Figure 4 , this embodiment shows that the connecting member 1 is combined with the frame 4 to use different models of face masks 2. The combination methods of face masks 2 and frames 4 from different manufacturers and models in the existing market are not the same, and there is a phenomenon that different models of frames 4 and different models of face masks 2 cannot be combined. For the detachable connecting member 1 of this embodiment with the frame 4, only by replacing different connecting members 1 to adapt to different face masks 2, the connecting member 1 is combined with the frame 4 to connect different models or different interface forms of face masks 2, which improves the patient's multiple choices for the face mask 2, enables the patient to choose all face masks 2 on the market according to their own needs and preferences, and expands the selection range. The connecting member 1 and the frame 4 are connected to the face mask 2 through the first interface end 11. The straight line formed by the center of the first interface end 11 of the connecting member 1 and the central opening 40 of the frame 4 defines the central axis of the air inlet of the face mask 2. To ensure the comfort of the cooperation with other components after the connecting member 1 and the frame 4 are fixed, in this embodiment, the central axis of the connecting member 1 is configured to form an angle of 10°-90° with the symmetry axis of the frame 4, such as Figure 20 shown, and the more preferred angle range is between 35°-90° to adapt to different ventilator placement positions and different postures of patients. In another embodiment, the connecting member 1 can also be constructed to be fixed to the face mask 2 and the central opening 40 on the frame 4 by means including but not limited to rotary buckles, adhesives, and welding.

[0086] The connecting member 1 can be used with a variety of different styles of elbows 3. Specifically, please refer to Figure 5 , this embodiment shows three different forms of elbows 3, namely A clip, B pinch, and C ball socket, used with the connecting member 1. When different connecting members 1 are connected to the frame 4, it means that the frame 4 has different forms of interface types for connecting to the elbows 3. Existing elbows 3 such as clip / pinch / ball socket in the market can correspond to modular connecting members 1 with corresponding types of interfaces, and modular frames 4 with corresponding types of interfaces can connect different types of elbows 3. In this way, users can flexibly select the combination of the elbow 3 and the face mask 2 frame 4. This method not only provides a better solution for users, but also has a positive impact on the entire respiratory accessory market.

[0087] The connecting member 1 can be used with a variety of different styles of face masks 2 and elbows 3 at the same time. Please refer further to Figure 13, this embodiment demonstrates that different connectors 1 form different frame 4 interfaces with the frame 4. Since both the elbow 3 and the breathing mask 2 are connected to the frame 4 by combining with the two open ends of the connector 1, the cooperation between the frame 4, the mask 2, and the elbow 3 is reflected at the connector 1. The independence of the connector 1 and the frame 4 ensures the combined adaptation of the frame 4, the mask 2, and the elbow 3. By only replacing the connector 1 instead of the entire frame 4 to adapt to the mask 2 and the elbow 3, it saves raw materials and production costs, and is also easy to maintain the frame 4, making the entire product more controllable, flexible, efficient, and reliable. The connector 1 can be used with multiple different styles of frames 4 at the same time. Specifically, please refer to Figure 6 , this embodiment shows that by replacing different connectors 1, it can be combined with the same frame 4 to form a frame 4 assembly with different interfaces. The different interfaces of the assembly can correspond to different elbows 3 and masks 2. Therefore, the frame 4 can not only connect different masks 2 according to a determined elbow 3 and connect different elbows 3 according to a determined mask 2, but also can be randomly matched with different elbows 3 and masks 2 for combined use. For example, a mask 2 of brand A can be used with an elbow 3 of brand B to achieve the random combination of elbows 3 and masks 2 of any brand. The R & D manufacturers do not need to cooperate in developing the mating joints of the mask 2 and the elbow 3, which plays a positive role in promoting the entire respiratory accessory market.

[0088] The above connector has at least the following beneficial effects:

[0089] 1) It can cooperate with different masks, with low product R & D costs, shortened R & D cycles, and saved raw materials: The modular design of independent production and recombination of the connector and the frame enables the frame, the mask, and the elbow to be disassembled. It is convenient for patients to adapt the frame assembly to different types of masks / elbows by replacing different types of intermediate connectors according to different situations. Since there are various different types of masks and elbows in the market, but not all masks and elbows can be adaptively joined to the frame, the above connector is designed and launched. After the frame and the connector are independently molded and then connected later, after the dependent connector is connected to the unified frame, it can be adapted to a mask of brand A or a mask of brand B or various other brands of masks. The connector is used to connect the mask and the elbow. This form ensures that the connection and fixation of the mask, the elbow, and the frame can be completed only through the connector. By replacing different connectors, the frame can be adapted to connect different types of elbows and masks. The modular design makes the connector form an independent module relative to each part of the product, which can be designed, developed, tested, and maintained separately. Modifications and replacements only need to change the corresponding connector module without affecting the entire system, thus saving raw materials and production costs and being easy to maintain the product, shortening the R & D time cost and manufacturing cycle of the product, and being easy to improve the quality and iteration of the product to cope with rapid market changes.

[0090] 2) Easy to maintain: The separate connector is designed by mold opening, which reduces the complexity of the product system at the same time. The whole product is more controllable for patients. The whole system is separately divided into several separate modules. In this way, when a module has problems, it is easier to isolate and solve it, thus reducing the failure risk. The impact during replacement is smaller, which better protects the environment, reduces carbon emissions, saves resources, and realizes green and sustainable design.

[0091] 3) Can be paired with elbows of different functions and structures: Different patients have their own needs for noise reduction or non-noise reduction. Some patients also have different air flow pressure requirements due to their own conditions. Therefore, patients need to choose elbows with noise reduction or non-noise reduction functions, different numbers of openings, hole diameters and even shapes on the market. A small number of patients with respiratory insufficiency and respiratory failure need to provide ventilation assistance and thus need to choose elbows without holes. And generally speaking, elbows with different functions have different types of connection structures, such as ball and socket types, left and right rotation types, clip types, and there are also elbows with various angles and various lengths of interfaces. Some of these structures are not suitable for the frame. Since there is no frame in the existing products that is compatible with several different types of elbows at the same time, in the present invention, the connector is configured to be separated from the frame. The split connection structure design provides a new possibility for patients who want to use the frame but the elbows are not suitable. By replacing the connector, it can be adapted to elbows with various different structures, giving patients a different feeling about the use of the mask and elbow with the frame.

[0092] 4) Low manufacturing cost: The original frame and connector are integrated. The frame connects the elbow and the mask through snap connections for the corresponding structural grooves and protrusions. Coupled with the fact that the frame itself has a curvature adapted to the mask, the structure is relatively complex, the corresponding mold opening difficulty increases, and the mold manufacturing cost increases accordingly. The design of separating the frame and the connector simplifies the structure, making the mold manufacturing relatively simple, the corresponding mold manufacturing cost is reduced, and the production cycle is also reduced, saving the R & D cycle and cost.

[0093] 5) Easy to clean: The modular designed connector also provides a more user-friendly way for patients to clean. When the connector is firmly fixed on the frame and cannot be disassembled, the overall formed by the frame and the connector has more and more complex structures, and it is easy to have problems such as bacterial growth due to unclean cleaning, which will threaten the health of patients. In the present invention, the connector is attached to the connector to jointly form a modular exhaust connector. When the patient cleans, the detachable structure has no complex structure compared with the overall components, is cleaner and simpler to clean, reduces the probability of bacterial growth, and protects the health of patients.

[0094] Embodiment 2

[0095] The present invention discloses a connector 1 for a ventilator frame, which is used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas, comprising a first interface end 11 for assembling and communicating with a mask 2, a second interface end 12 for assembling and communicating with an elbow 3, and an annular channel 13 connecting the first interface end 11 and the second interface end 12 and allowing pressurized air to pass through to enter the patient's airway; the axis of the connector 1 coincides with the axis at the gas outlet of the elbow 3, the connector 1 passes through the central opening 40 of the frame 4 and is fixedly connected to the frame 4 to prevent the connector 1 from sliding or rotating relative to the frame 4; the length of the connector 1 is 3-50 mm; the inner diameter of the connector 1 is not greater than 80 mm; the ratio between the opening area of ​​the second interface end 12 and the outer surface area of ​​the frame 4 is at least 1:20.

[0096] Compared with Example 1, this embodiment limits the inner diameter of the connector 1, and limits the ratio of the opening area of ​​the second interface end 12 to the outer surface area of ​​the frame 4. Since the inner edge diameter of the connector 1 close to the mask 2 (the inner diameter of the first interface end 11) determines the air pressure of the gas flowing into the mask 2, it is possible to avoid the patient's difficulty in breathing due to too low air pressure and the problem that the connector 1 cannot be installed due to the opening size of the second interface end 12 of the connector 1 being too large or too small. In this embodiment, the inner diameter of the connector 1 is not greater than 80 mm; the ratio between the opening area of ​​the second interface end 12 and the outer surface area of ​​the frame 4 is at least 1:20.

[0097] In this embodiment, the connecting member 1 and the central opening 40 of the frame 4 are fitted by snap fit. Figure 2 , Figure 3 and Figure 11 A gasket 14 is provided on the connector 1 between the first interface end 11 and the second interface end 12, and a notch 43 is provided on the frame 4 on the side facing the second interface end 12 of the connector 1 at the edge of the central opening 40 of the frame 4. The gasket 14 is embedded in the notch 43 when the connector 1 and the frame 4 are assembled. The notch 43 can also be understood as a recessed narrow groove provided in the central opening of the frame 4, which is configured to engage with the protruding portion provided on the connector 1 - the gasket 14, for aligning and stabilizing and enhancing the force of the close-fitting connector 1 of the adjacent portion. In this embodiment, the gasket 14 has at least one raised protrusion, and the gasket 14 is configured to be used to position the frame 4 and the connector 1, so as to limit the installation position of the connector 1 on the frame 4. The gasket 14 corresponds to the recess 43 on the inner wall of the central opening 40 of the frame 4. In order to make the frame 4 and the connector 1 fit tightly and be positioned, the gasket 14 cooperates with the curvature of the frame 4 to present a non-flat ring extending from the middle to both sides and gradually offset to the second interface end 12. When the connector 1 is connected to the frame 4, the gasket 14 is received in the recess 43 of the frame 4 and exposed to the front side of the frame 4.

[0098] The connection method between the connecting piece 1 and the face mask 2 is snap connection. Specifically, please refer to Figure 3 and Figure 12 , in this embodiment, it is shown that the connecting piece 1 is connected to the face mask 2 through protrusions / grooves. The connecting piece 1 is separated from the frame 4. The connecting piece 1 and the frame 4 can be connected by means of protrusions integrally formed at both ends and the middle part of the connecting piece 1 to fit into the grooves on the inner wall of the central opening of the frame 4, or can be connected by means of grooves formed in the middle of both ends of the connecting piece 1 to cooperate with the protrusions on the inner wall of the central opening of the frame 4 in a snap connection manner. The connecting piece 1 and the frame 4 can also be connected by other means such as adhesive connection, so as to form a stable and non-rotatable fixed connection between the connecting piece 1 and the frame 4.

[0099] Furthermore, a first protrusion 111 is provided on the outer surface of the first interface end 11, a second protrusion 121 is provided on the outer surface of the second interface end 12. A limiting protrusion 15 is provided between the first protrusion 111 and the gasket 14. A limiting groove 16 that is concavo-convexly matched with the inner edge of the central opening 40 of the frame 4 is formed between the limiting protrusion 15 and the gasket 14, and at least one side of the limiting protrusion 15 adjacent to and away from the second interface end 12 is an inclined surface.

[0100] In this embodiment, both the first protrusion 111 and the second protrusion 121 are integrally formed with the connecting piece 1. The connecting piece 1 forms a releasable connection with the devices on both sides of the elbow 3 through the first protrusion 111, and the connecting piece 1 forms a releasable connection with the devices on both sides of the elbow 3 through the second protrusion 121. The first protrusion 111 is used to be attached to the face mask 2, and its surface curvature is smooth. In order to ensure that the connecting piece 1 and the elbow 3 will not become loose, leak air or be unstable during use, and to simplify the disassembly and wearing process of the patient; the connection method between the connecting piece 1 and the elbow 3 is designed as a simple mechanical connection method, and better tightness and stability are provided through the engagement and interlocking of the structures. Users can choose a suitable connection method according to their needs to ensure the normal operation of the treatment device and the user experience. In addition, one or more interlocking interfaces that are concavo-convexly matched with the second protrusion 121 are provided at the central opening 40 of the frame 4 to form a sealed connection, so as to facilitate the patient to quickly disassemble between the frame 4 assembly and the face mask 2, facilitate multi-state wearing, and improve the comfort and convenience of user use. In addition, please refer to Figure 3 , according to the structural differences of different parts adapted thereto, the connecting piece 1 can also include a variety of different forms. The first protrusion 111 on the connecting piece 1 can be at a certain distance from the end face of the first interface end 11, or the end face of the first protrusion 111 can be flush with the end face of the first interface end 11. In other cases, the first protrusion 111 can also be cancelled as appropriate.

[0101] Embodiment 3

[0102] The present invention discloses a connector 1 for a ventilator frame, which is used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas. The connector 1 is configured to be connected to the frame in the mask system by means of threading or surface contact; the connector 1 is provided with a first interface end 11 for assembling and communicating with the mask 2 and a second interface end 12 for assembling and communicating with the elbow 3. The connector 1 is provided with an exhaust port 5 that penetrates the inner surface and the outer surface of the connector 1 and communicates with the external environment to allow the gas inside the connector 1 to flow to the external environment. The outer perimeter of the part of the connector 1 that cooperates with the frame 4 is smaller than the inner perimeter of the central opening 40 on the frame 4 for accommodating the connector 1; the exhaust port 5 has at least one of the following characteristics:

[0103] The number of exhaust ports 5 is at least 1;

[0104] The diameters at both ends of the exhaust port 5 are different;

[0105] The total area of the exhaust ports 5 accounts for 3%-90% of the outer surface area of the connector 1.

[0106] Compared with Embodiment 1 and Embodiment 2, an exhaust port 5 is added to the connector 1 in this embodiment. When the frame adapts to different masks and elbows, while providing more choices for users, it can also ensure its exhaust effect. Through innovative connection methods, adaptability design and synchronous effect optimization, the wearing adaptability, convenience and comfort of the treatment device are improved, and the treatment compliance of patients is further promoted. The exhaust port 5 forms a channel connecting the sleep apnea treatment device and the external environment, maintaining the ventilation effect of the patient and avoiding carbon dioxide accumulation. In addition, the exhaust port 5 can also reduce the noise of the internal airflow and reduce the discomfort of the user during use.

[0107] Specifically, please combine with Figure 14 、 Figure 16 、 Figure 17, in this embodiment, the positive pressure gas is sent into the upper airway of the patient through the air delivery channel jointly formed by the connector 1, the face mask, the frame, the elbow, etc., and the waste gas exhaled by the patient can be discharged through the exhaust port 5 on the connector 1. In this embodiment, the number of the exhaust ports 5 is set to be at least one, and a flow channel for the exhaled gas is provided on the connector 1; the diameters at both ends of the exhaust port 5 are different. Preferably, the inner diameter of the exhaust port 5 adjacent to the face mask is larger than the inner diameter of the exhaust port 5 adjacent to the elbow, that is, the exhaust port 5 is a conical structure. In this way, when the patient exhales, the exhaled gas is discharged under the pressure of the conical structure, reducing the difficulty of the patient's exhalation. The total area of the exhaust ports 5 is set to account for 3%-90% of the outer surface area of the connector 1, so as to ensure that there is enough exhaust area on the connector 1 to prevent the patient from suffocating in some cases. In addition, in this embodiment, when the number of the exhaust ports 5 is greater than 1, the exhaust ports 5 are evenly or unevenly distributed along the annular channel 13 of the connector 1, so that the gas exhaled by the patient can be discharged along multiple parts on the circumferential side of the connector 1, further reducing the burden on the patient during exhalation. In one embodiment, the exhaust ports 5 can also be randomly arranged on the connector 1.

[0108] In this embodiment, the outer perimeter of the second interface end 12 is smaller than the outer perimeter of the first interface end 11. That is to say, the opening aperture of the end of the connector 1 adapted to the elbow 3 is smaller than the opening aperture of the end of the connector 1 adapted to the face mask 2, so as to provide a larger channel for the breathing gas to enter for the patient during the patient's breathing treatment and reduce the difficulty of the patient's inhalation. Further, the connector 1 forms a releasable connection with the devices on both sides of the elbow 3 through the second protrusion 121. On one side of the gasket 14 adjacent to the second interface end 12, a step or an inclined surface is formed with the second interface end, and the exhaust port 5 is arranged on the step or the inclined surface and penetrates the inner and outer surfaces of the connector 1. In another embodiment, the outer perimeter of the second interface end 12 of the connector 1 is larger than the outer perimeter of the first interface end 11. At this time, the connector 1 has a double-layer wall, as Figure 14 shown, the exhaust port 5 is arranged on the surface that forms a certain angle with the inner and outer walls and is used to connect the inner and outer walls. At this time, the second protrusion 121 is arranged on the inner layer wall of the connector 1.

[0109] In one embodiment, the included angle between the axis direction of the exhaust port 5 and the axis direction of the connector 1 is between 0° and 90°. By setting the included angle between the axis direction of the exhaust port 5 and the axis direction of the connector 1, the air flow can be guided to be discharged from a specific direction to meet the different exhaust requirements of the patient. In addition, in this embodiment, the exhaust port 5 is a circular, oval, semi-circular or square structure, and can also be other special-shaped structures. Specifically, please refer to Figure 16 、 Figure 17, this embodiment demonstrates different forms of the exhaust port 5. Different forms of the exhaust port 5 can affect the flow mode, speed, and exhaust uniformity of the air flow. Therefore, the form of the exhaust port 5 can be arranged differently and different paths and shapes can be designed according to user requirements and functions. For example, for the shape of the exhaust port 5, a linear exhaust groove can guide the air flow to be discharged in a specific direction, and adjusting the angle of the exhaust port 5 can better direct the air flow to reduce external interference. There are also the size, quantity, layout, etc. of the exhaust port 5. Through reasonable design and layout, the best exhaust effect can be achieved, thereby improving the performance of the treatment device and the user experience. The shape of the exhaust port 5 can be selected according to its design path, set angle, and processing technology requirements, which will not be elaborated here.

[0110] When the form of the exhaust port 5 is in the shape of a hole, the part on the connector 1 for forming the exhaust port 5 is an exhaust hole. At this time, the total area of the exhaust port 5 accounts for 3%-50% of the inner and outer surface areas of the connector 1; the exhaust holes are provided on the connector 1, and the shapes of the exhaust holes include but are not limited to circular, oval, semi-circular, and square.

[0111] The connector of this embodiment can at least achieve the following technical effects:

[0112] 1) Separate the exhaust port from the mask or elbow to form a modular component that can be replaced separately. By separately molding the connector and then fixedly installing it on the mask frame, the problem of different patients needing to replace the exhaust component due to different requirements for the exhaust port is solved. The modular-designed connector enables patients to focus on a specific connector rather than the entire respiratory accessory system, can achieve rapid replacement and quickly adapt to newly emerging masks or elbows in the market, improves the usability and reliability of the connector, reduces the discard rate of respiratory accessories by patients, can gradually reduce carbon emissions globally, is more environmentally friendly, saves a large amount of time cost for patients, and also saves a large amount of R & D time cost and actual cost for R & D personnel.

[0113] 2) By replacing different connectors, it is possible to adapt to different elbows and masks. The same elbow can be adapted to different corresponding masks through different connectors, or the same mask can be adapted to different elbows through different connectors, enabling repeated use of single accessories in different project combinations. This avoids the repeated collaborative development of the same accessories when the connectors are fixed to the elbows or masks. By using existing modules to build a more flexible system and integrating multiple functions into small modular components, development time and resources can be saved. Moreover, the reliability of existing masks or elbows has been tested and proven in use. Developing the connectors for exhaust separately avoids the trial-and-error costs of new R & D for masks or elbows with exhaust designs, thereby improving development efficiency and quality. When the connectors for exhaust are in use, it is easier to maintain and upgrade a single modular component than an entire component with an elbow or mask. Therefore, the modular-designed connectors can also reduce the difficulty and cost of maintenance, bringing substantial economic benefits to the R & D process.

[0114] 3) Not all of the diverse elbows, masks, and frames on the market can be mutually adapted. This single adaptation method limits the range of choices for patients regarding respiratory accessories. Since patients have different requirements or preferences for accessory selection, the modular-designed exhaust components provide better connections between accessories, allowing users to independently choose and purchase respiratory accessories according to their own needs and preferences. This enables patients to avoid having to follow the requirements of independent interface docking. Through modular connectors, accessories with different interfaces can be used in combination. This means that users can independently select the required accessories from different manufacturers to match different modular components. This flexibility has a positive impact on both the market and users, not only maintaining their competitiveness but also providing a more satisfactory solution for patients.

[0115] 4) The modular-designed connectors also provide a more user-friendly way for patient cleaning. When the exhaust port is on the elbow or mask, the overall structure is more complex, making it easy for patients to clean incompletely, leading to bacterial growth and threatening the health of patients. By attaching the exhaust port to the connector, the detachable structure during patient cleaning has a less complex structure compared to the overall component, making it cleaner and simpler to wash, reducing the probability of bacterial growth and protecting the health of patients.

[0116] Example 4

[0117] Please combine Figure 15 with Figure 18, the present invention discloses a connector 1 for a ventilator frame, which is used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas. The connector 1 is configured to be detachably connected to the frame in the mask system by means of threading or surface contact; the connector 1 is provided with a first interface end 11 for assembling and communicating with the mask 2 and a second interface end 12 for assembling and communicating with the elbow 3. The connector 1 is provided with a plurality of exhaust ports 5 that penetrate the inner surface and the outer surface of the connector 1 and communicate with the external environment to allow the gas inside the connector 1 to flow to the external environment. Each of the exhaust ports 5 is distributed along the annular channel of the connector 1; a noise reduction member 6 is provided on the outer surface of the connector 1. The noise reduction member 6 includes noise reduction materials corresponding to the exhaust ports 5. The noise reduction materials have at least one of the following characteristics:

[0118] The density range of the noise reduction material is 0.8 - 1.8 g / cm 3 ;

[0119] The surface area of the noise reduction material accounts for 3% - 90% of the outer surface area of the connector 1;

[0120] The thickness range of the noise reduction material is 0.1 - 0.5 mm;

[0121] The weight range of the noise reduction material is 0.02 - 0.2 g.

[0122] The structural material of the connector 1 in this embodiment is basically the same as that in Embodiment 1. Compared with Embodiment 1, the exhaust ports 5 are added. Compared with Embodiment 5, a noise reduction member 6 is further provided at the exhaust ports 5 in this embodiment. The noise reduction member 6 reduces the noise generated by the disturbance of the gas discharged at the exhaust ports 5, further adding a noise reduction function to the connector 1. Since different patients have different tolerances to noise, the external noise reduction member 6 can improve the comfort and usage experience of users, providing a quieter sleep environment for patients. Users can choose to install or not install the noise reduction member 6 or replace the connector 1 with / without the noise reduction member 6 according to their needs, thus providing an efficient, flexible, and reliable design. In addition, the setting of the noise reduction member 6 at the exhaust ports 5 on the connector 1 enables patients to choose to replace the noise reduction member 6 to extend the service life of the product. The product is relatively easy to be replaced and modified, and the replaced and modified parts are small, so the influence range is small. There is no need to carry out large-scale replacement and update. By replacing the noise reduction member 6 on the connector 1, the entire exhaust component with noise reduction materials is replaced to extend the life cycle of other components, extend its existence in the market, and reduce resource consumption.

[0123] In this embodiment, by limiting the density, weight, thickness, and surface area of the noise reduction material, the influence of the noise reduction member 6 on the connector 1 can be reduced, and the burden on patients when wearing the breathing mask can be alleviated. In this embodiment, the noise reduction material is in a mesh structure or a cotton-like structure; the noise reduction material is cotton, nylon, or natural fabric.

[0124] In one embodiment, the noise reduction member 6 for covering the exhaust port 5 on the connecting member 1 is a mesh structure, a grid-like structure, or a partition portion having a plurality of micropores; the noise reduction member 6 for covering the exhaust port 5 on the connecting member 1 is made of polypropylene, polyethylene, polyester, nylon, or natural fabric. Please refer to Figure 15 , due to the arrangement of the exhaust port 5, the connecting member 1 itself has a certain noise reduction function. The structure and shape of the connecting member 1 for forming the exhaust port 5 have a great influence on the effect of absorbing, isolating, or reducing the noise generated by the airflow. For example, Figure 15 Figure A in Figure 18 Figure B in Figure 15 shows a noise reduction member 6 with a mesh structure made of silicone material (or a grid-like structure). Figure 15 Figure C in Figure 15 shows a partition portion with a plurality of micropores made of cloth, and the micropores are used to form the noise reduction member 6.

[0125] When the form of the noise reduction member 6 covering the exhaust port 5 is a mesh, the total area of the exhaust ports 5 accounts for 3% - 90% of the inner and outer surface areas of the connecting member 1. The shape of the outer contour of the exhaust ports 5 includes, but is not limited to, circular, oval, semi-circular, and square. The materials of the exhaust mesh include, but are not limited to, polypropylene, polyethylene, polyester, nylon, and natural fabric.

[0126] In another embodiment, the noise reduction member 6 includes an external connection component. Please refer to Figure 18 Figure A in

[0127] Embodiment 5

[0128] The present invention discloses a connector 1 for a ventilator frame, which is used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas. The connector 1 is configured to be connected to the frame 4 in the mask system by means of threading or surface contact; the connector 1 is provided with a first interface end 11 for assembling and communicating with the mask 2 and a second interface end 12 for assembling and communicating with the elbow 3. The connector 1 is provided with a plurality of exhaust ports 5 that penetrate the inner surface and the outer surface of the connector 1 and communicate with the external environment to allow the gas inside the connector 1 to flow to the external environment. Each exhaust port 5 is distributed along the annular channel 13 of the connector 1; the connector 1 has at least one of the following characteristics:

[0129] The volume ratio of the connector 1 to the frame 4 is 1:1.8 - 1:14;

[0130] The length range of the connector 1 is 1 - 100 mm;

[0131] The weight of the connector 1 is 1 - 5 g.

[0132] Compared with Embodiment 1, this embodiment further defines the parameters of the connector 1 and the connection method between the connector 1 and the frame 4 is non-detachable. Preferably, the overall length of the connector 1 is about 3 - 50 mm, providing sufficient contact surfaces for the connection between the connector 1 and the frame 4, the mask 2, and the elbow 3. At least part of the connector 1 can be deformed. It basically does not deform in the static state and undergoes reversible minor morphological changes under the action of external forces, so as to extend the service life of the connector 1 and facilitate the connector 1 to adapt to the usage habits of different patients. The connector 1 is made of one or two materials selected from polycarbonate, polyethylene, polypropylene, and silica gel. Further, the outer diameter of the first interface end 11 is 10 - 80 mm, the outer diameter of the second interface end 12 is 10 - 80 mm, and the wall thickness range of the connector 1 is 0.3 - 5 mm. While facilitating the cooperation between the connector 1 and the elbow 3 and the mask 2, the overall weight of the connector 1 is controlled by limiting the wall thickness of the connector 1 to reduce the burden on the patient when wearing the breathing mask 2. In addition, in this embodiment, at least one end portion of the connector 1 has a circular cross-section, and the outer diameter of the circular part is 5 - 80 mm. The peripheral circumference where the connector 1 intersects with the frame 4 is smaller than the opening circumference of the frame 4 that accommodates the connector 1, so that the connector 1 can smoothly pass through the central opening 40 of the frame 4 and be fixedly fitted with the frame 4, and when the connector 1 is connected to the frame 4, at least a part of the outer wall of the connector 1 fits the inner wall of the hole, thereby providing a sealed passage for the pressurized air.

[0133] In this embodiment, the connector 1 is fixedly connected to the frame 4 by ultrasonic (plastic welding technology) or adhesive. As Figure 19As shown, the connecting member 1 and the frame 4 provide a non-detachable connection method to provide a firm frame 4 for the patient. The two different methods are both aimed at providing a reliable connection to ensure that the exhaust component will not fall off during use. The connecting member 1 and the frame 4 can also adopt a non-detachable snap connection.

[0134] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0135] The above-described embodiments only express several implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A connector for a ventilator frame, used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas, characterized in that, Comprising a first interface end for assembling and communicating with a face mask, a second interface end for assembling and communicating with an elbow, and an annular channel connecting the first interface end and the second interface end and allowing pressurized air to pass through and enter the patient's airway; The axis of the connecting member coincides with the axis at the gas outlet of the elbow, and the connecting member passes through the central opening of the frame and is fixedly connected to the frame to prevent the connecting member from sliding or rotating relative to the frame; At least a part of the wall thickness of the connecting member is less than 3 mm, the length of the connecting member is 3 - 50 mm, and the outer perimeter of the part of the connecting member that cooperates with the frame is smaller than the inner perimeter of the central opening of the frame.

2. The connector for a ventilator frame according to claim 1, characterized in that, The overall length of the connecting member is greater than the wall thickness at the central opening of the frame.

3. The connector for a ventilator frame according to claim 1, characterized in that, The first interface end is detachably connected to the face mask, the second interface end is detachably connected to the elbow, and the connecting member is connected to the elbow and the face mask to form a seal.

4. The connector for a ventilator frame according to claim 1, characterized in that, The outer perimeter of the second interface end is smaller than the outer perimeter of the first interface end.

5. The connector for a ventilator frame according to claim 1, characterized in that, The central axis of the connecting member is configured to form an angle of 10° - 90° with the axis of symmetry of the frame.

6. A connector for a ventilator frame, used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas, characterized in that, Comprising a first interface end for assembling and communicating with a face mask, a second interface end for assembling and communicating with an elbow, and an annular channel connecting the first interface end and the second interface end and allowing pressurized air to pass through and enter the patient's airway; The axis of the connecting member coincides with the axis at the gas outlet of the elbow, and the connecting member passes through the central opening of the frame and is fixedly connected to the frame to prevent the connecting member from sliding or rotating relative to the frame; The length of the connecting member is 3 - 50 mm; the inner diameter of the connecting member is not greater than 80 mm; the ratio between the opening area of the second interface end and the outer surface area of the frame is at least 1:

20.

7. The connector for a ventilator frame according to claim 6, characterized in that, The frame is made of a rigid material or a semi-rigid material.

8. The connector for a ventilator frame according to claim 6, characterized in that, At least a part of the frame contacts the patient's face; the frame is configured to cover at least a part of the face mask when the frame engages with the face mask.

9. The connector for a ventilator frame according to claim 6, characterized in that, A gasket is provided between the first interface end and the second interface end of the connecting member, and a notch is provided at the edge of the central opening of the frame on the side of the frame facing the second interface end of the connecting member, and the gasket is embedded in the notch when the connecting member and the frame are assembled.

10. The connector for a ventilator frame according to claim 6, characterized in that, A first protrusion is provided on the outer surface of the first interface end, a second protrusion is provided on the outer surface of the second interface end, a limiting protrusion is provided between the first protrusion and the gasket, a limiting groove that engages with the inner edge of the central opening of the frame in a concave-convex manner is formed between the limiting protrusion and the gasket, and at least one of the sides of the limiting protrusion adjacent to and away from the second interface end is a bevel.

11. The connector for a ventilator frame according to claim 6, characterized in that, One or more interlocking interfaces that engage with the second protrusion in a concave-convex manner to form a sealed connection are provided at the central opening of the frame.

12. A connector for a ventilator frame, used to connect a mask system and form a passage for transmitting positive pressure air or breathable gas, characterized in that, The connecting member is configured to be detachably connected to the frame in the face mask system by means of threading or surface contact; The connecting member is provided with a first interface end for assembling and communicating with a face mask and a second interface end for assembling and communicating with an elbow. The connecting member is provided with an exhaust port that penetrates the inner surface and the outer surface of the connecting member and communicates with the external environment to allow the gas inside the connecting member to flow to the external environment. The outer perimeter of the part of the connecting member that cooperates with the frame is smaller than the inner perimeter of the central opening of the frame for accommodating the connecting member; The exhaust port has at least one of the following features: The number of exhaust ports is at least 1; The diameters at both ends of the exhaust port are different; The total area of the exhaust ports accounts for 3%-90% of the outer surface area of the connecting piece.

13. The connector for a ventilator frame according to claim 12, characterized in that,When the number of exhaust ports is greater than 1, the exhaust ports are evenly or unevenly distributed along the annular channel of the connecting piece.

14. The connecting member for a ventilator frame according to claim 12, characterized in that, The included angle between the axial direction of the exhaust port and the axial direction of the connecting piece is between 0° and 90°.

15. The connecting member for a ventilator frame according to claim 12, characterized in that, The exhaust port has a circular, oval, semi-circular or square structure.

16. A connecting member for a ventilator frame, for connecting a mask system and forming a passage for transmitting positive pressure air or breathable gas, characterized in that, The connecting piece is configured to be connected to the frame in the mask system by means of threading or surface contact; The connecting piece is provided with a first interface end for assembling and communicating with the mask, a second interface end for assembling and communicating with the elbow. The connecting piece is provided with a plurality of exhaust ports that penetrate the inner surface and the outer surface of the connecting piece and communicate with the external environment to allow the gas inside the connecting piece to flow to the external environment. Each exhaust port is distributed along the annular channel of the connecting piece; The outer surface of the connecting piece is provided with a noise reduction member. The noise reduction member includes noise reduction materials corresponding to the exhaust ports. The noise reduction materials have at least one of the following characteristics: The density range of the noise reduction material is 0.8 - 1.8 g / cm 3 ; The surface area of the noise reduction material accounts for 3%-90% of the outer surface area of the connecting piece; The thickness range of the noise reduction material is 0.1-0.5 mm.

17. The connecting member for a ventilator frame according to claim 16, characterized in that, The noise reduction material has a mesh structure or a cotton floc structure.

18. The connecting member for a ventilator frame according to claim 16, characterized in that, The noise reduction material is cotton, nylon, or natural fabric.

19. The connecting member for a ventilator frame according to claim 16, characterized in that, The noise reduction member is a mesh structure, a grid structure or a partition part with a number of micropores; the noise reduction member used to cover the exhaust port on the connecting piece is made of polypropylene, polyethylene, polyester, nylon or natural fabric.

20. The connecting member for a ventilator frame according to claim 16, characterized in that, The noise reduction member includes an external connection part, and the external connection part is snap-connected or magnetically connected to the connecting piece.

21. A connecting member for a ventilator frame, for connecting a mask system and forming a passage for transmitting positive pressure air or breathable gas, characterized in that, The connecting piece is configured to be connected to the frame in the mask system by means of threading or surface contact; The connecting piece is provided with a first interface end for assembling and communicating with the mask, a second interface end for assembling and communicating with the elbow. The connecting piece is provided with a plurality of exhaust ports that penetrate the inner surface and the outer surface of the connecting piece and communicate with the external environment to allow the gas inside the connecting piece to flow to the external environment. Each exhaust port is distributed around the annular channel of the connecting piece; The connecting piece has at least one of the following characteristics: The volume ratio of the connecting piece to the frame is 1:1.8 - 1:14; The length range of the connecting piece is 1-100 mm; The weight of the connecting piece is 1-5 g.

22. The connecting member for a ventilator frame according to claim 21, characterized in that, The outer diameter of the first interface end is 10-80 mm, the outer diameter of the second interface end is 10-80 mm, and the wall thickness range of the connecting piece is 0.3-5 mm.

23. The connecting member for a ventilator frame according to claim 21, characterized in that, At least one end of the connecting piece has a circular cross-section.

24. The connecting member for a ventilator frame according to claim 21, characterized in that, At least a part of the connecting piece can be deformed.

25. The connecting member for a ventilator frame according to claim 21, characterized in that, The connecting piece is made of one or two materials selected from polycarbonate, polyethylene, polypropylene, and silica gel.

26. The connecting member for a ventilator frame according to claim 21, characterized in that, The mask system includes the connecting piece, the frame, the mask, and the elbow; the connecting piece and the frame are detachably connected by means of snap-fastening, rotational fitting or magnetic attraction, or the connecting piece is fixedly connected to the frame by ultrasonic waves or adhesives; the connecting piece and the mask are connected by means of snap-fastening, rotational fitting or magnetic attraction, and the connecting piece and the elbow are connected by means of snap-fastening, ball-and-socket rotation or hinge.

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