Portable sleep assisting type breathing machine

Abstract

The utility model discloses a portable sleep assisting type breathing machine which comprises a breathing machine body, a breathing nose cover and an air guide pipe. The gas-guide tube comprises a gas-guide tube body and a first tube joint; one end of the gas-guide tube body is an elbow, the other end of the gas-guide tube body is a straight head, and the first tube joint is fixedly connected with one end of the elbow; the first pipe connector comprises a first connecting end and a connecting ball head, the first connecting end is detachably connected with the breathing nose mask in a sealed mode, the connecting ball head is fixedly connected with the end, arranged to be the elbow, of the air guide pipe body, and the connecting ball head is rotationally connected with the first connecting end. The axis of the gas-guide tube body is perpendicular to a rotating shaft of the connecting ball head and rotates around the rotating shaft of the connecting ball head. According to the portable sleep assisting type breathing machine, the connecting ball head is arranged, so that the air guide pipe can rotate after being connected with the nasal mask, the air guide pipe can face different directions, and a user can improve using comfort and sleep quality according to own sleep habits and postures.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a portable sleep-assisting ventilator. Background Art

[0002] In modern clinical medicine, as an effective means to artificially replace the function of autonomous ventilation, ventilators have been widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgeries, respiratory support treatment, and first aid resuscitation. They play a very important role in the field of modern medicine. A ventilator is a crucial medical device that can prevent and treat respiratory failure, reduce complications, and save and extend the lives of patients. However, with the research and development of ventilator technology and the improvement of people's pursuit of quality of life, ventilators have gradually appeared in people's daily lives, such as being used by snoring patients to treat snoring, or for sleep assistance for some elderly patients, etc.

[0003] Masks and nasal masks are one of the main structural components equipped on ventilators. They are placed on the human face or outside the nose, forming a sealed cavity with the human face, which is conducive to the ventilator main unit providing positive pressure gas to the human body, assisting in intake, and assisting in discharging gases such as carbon dioxide. The mask or nasal mask is connected and communicated with the ventilator main unit through a trachea. Since the sleep-assisting ventilator is applied in people's daily lives for the sleep treatment of snoring patients and elderly patients, rather than in clinical settings, the requirements and habits for people's sleep postures are different from those in clinical settings. In the prior art, the trachea connected to the mask or nasal mask generally extends towards the human chin and neck, which will affect the mouth movements of the user, or affect the user's sleep posture, reduce the comfort of the user, and even affect the sleep quality of the user. Summary of the Utility Model

[0004] In order to overcome at least one of the above-mentioned defects of the prior art, the utility model provides a portable sleep-assisting ventilator. By changing the connection method and connection structure of the connection position between the trachea and the nasal mask, and by setting a connecting ball head to connect the first connecting end and the trachea body, the trachea can rotate after being connected to the nasal mask, so that the trachea can face different directions, such as the cheek side or the forehead position, enabling the user to place the trachea in a reasonable position according to their own sleep habits and postures, improving the use comfort and sleep quality.

[0005] The technical solution adopted by the utility model to solve its problems is:

[0006] A portable sleep-assisting ventilator, comprising a ventilator main body, a respiratory nasal mask, and a trachea connecting the respiratory nasal mask and the ventilator main body;

[0007] The air duct includes an air duct body and a first pipe joint, and the first pipe joint is detachably connected to the breathing nasal mask;

[0008] One end of the air duct body is set as an elbow, and the other end is set as a straight head. The first pipe joint is fixedly connected to the end of the air duct body set as the elbow;

[0009] The first pipe joint includes a first connection end and a connection ball head. The first connection end is detachably and sealingly connected to the breathing nasal mask. The connection ball head is fixedly connected to the end of the air duct body set as the elbow. The connection ball head is rotatably connected to the first connection end. The axis of the air duct body is perpendicular to the rotation axis of the connection ball head and rotates around the rotation axis of the connection ball head.

[0010] Further, the first connection end includes a first connection pipe in a columnar shape. One end of the first connection pipe is detachably and sealingly connected to the breathing nasal mask. The connection ball head is connected to the other end of the first connection pipe. The outer diameter of the connection ball head is adapted to the inner diameter of the first connection pipe. The connection ball head is placed inside the first connection pipe and is rotatably connected to the first connection pipe. The connection ball head rotates around the axis of the first connection pipe.

[0011] Further, a first limit ring groove is provided on the inner wall of the first connection pipe, and a first sealing rubber ring is fixed in the first limit ring groove. The outer wall of the connection ball head contacts the first sealing rubber ring and compresses the first sealing rubber ring.

[0012] Further, a first limit convex ring is also provided on the inner wall of the first connection pipe, and the connection ball head contacts the first limit convex ring.

[0013] Further, an air guide column hole is provided on the connection ball head, and the air guide column hole communicates the air duct body and the first connection pipe. The axis of the first connection pipe is parallel to the axis of the air guide column hole.

[0014] Further, an air leakage valve and a second pipe joint are provided on the breathing nasal mask, and the first pipe joint is detachably and sealingly connected to the second pipe joint.

[0015] Further, the second pipe joint includes a second connection pipe in a columnar shape and is fixedly connected to and communicates with the breathing nasal mask. The inner diameter of the second connection pipe is adapted to the outer diameter of the first connection pipe. The first connection pipe is threadedly connected to the second connection pipe;

[0016] A second limit convex ring is provided on the inner wall of the second connection pipe, and a second sealing rubber ring is fixed on the side of the second limit convex ring facing the first connection pipe. The inner end of the first connection pipe abuts against the second sealing rubber ring.

[0017] Further, the air duct body includes an inner tube and an outer tube. The elbow and the straight head are respectively connected to both ends of the inner tube and are integrally formed with the inner tube.

[0018] The outer tube is wrapped outside the inner tube. A heating element is provided on the inner wall of the outer tube. The heating element contacts the outer wall of the inner tube and heats the inner tube.

[0019] A connecting shoulder is provided at the straight head end of the outer tube close to the inner tube. The connecting shoulder is detachably and fixedly connected to the ventilator main body, and the inner tube is arranged such that its straight head end is detachably and fixedly connected to the ventilator main body.

[0020] Further, a third pipe joint is provided on the ventilator main body. The third pipe joint is threadedly connected to the inner tube and snap-connected to the outer tube.

[0021] The third pipe joint includes a columnar third connecting pipe. The inner diameter of the third connecting pipe is adapted to the outer diameter of the inner tube and is threadedly connected to the inner tube.

[0022] A connecting ring groove is provided at the outer end of the third connecting pipe. The connecting ring groove is formed by the inner wall of the outer end of the third connecting pipe recessing radially outward along the third connecting pipe. The outer tube is connected to the connecting ring groove.

[0023] An outwardly expanding wall is provided on the inner wall of the outer tube near the end of the straight head. The inner diameter of the outwardly expanding wall gradually increases from the inner end to the outer end. A connecting shoulder is provided on the outer wall of the outer tube near the end of the straight head. The connecting shoulder is adapted to the connecting ring groove. By squeezing the connecting shoulder along the outer tube, the connecting shoulder enters and exits the connecting ring groove.

[0024] Further, the breathing nasal mask includes a nasal mask body and a nasal mask body fixing member detachably connected to the nasal mask body.

[0025] The nasal mask body fixing member includes a connecting portion detachably connected to the nasal mask body, a fixing portion placed at the position of the back of the human head after wearing, and a telescopic connecting band connecting the connecting portion and the fixing portion. One end of the telescopic connecting band is fixedly connected to the connecting portion, and the other end passes through the fixing portion and is provided with a limiting buckle.

[0026] The nasal mask body includes a lower sealing portion located at the position of the nasolabial groove of the human body. The lower sealing portion is arc-shaped, and both ends are bent downward and extend toward the corner of the human mouth.

[0027] A limiting retaining groove is provided on the outer surface of the nasal mask body. The limiting retaining groove forms a fixed position of the connecting portion with the outer surface of the nasal mask body. One end of the telescopic connecting band passes through the limiting retaining groove and is fixedly connected to the connecting portion.

[0028] The limiting retaining groove is annular, the connecting portion is annular and is placed in the limiting retaining groove, and there are 5 telescopic connecting bands. When worn, the 5 telescopic connecting bands respectively bypass from the sides of the two cheeks, the positions of the two temples and the midline position of the forehead of the human body and are detachably connected to the fixing portion;

[0029] The telescopic connecting band has an oval cross-section and has elasticity, and the fixing portion is made of cotton cloth.

[0030] In summary, a portable sleep-assisting ventilator provided by the present utility model has the following technical effects:

[0031] 1. By changing the connection method and connection structure of the connection position between the air duct and the nasal mask, and by providing a connecting ball head to realize the connection between the first connection end and the air duct body, the air duct can rotate after being connected to the nasal mask, so that the air duct can face different directions, such as the cheek side or the forehead position, enabling the user to select a reasonable position for placing the air duct according to their own sleep habits and postures, improving the use comfort and improving the sleep quality.

[0032] 2. By providing an outer tube and a heating element on the inner surface of the outer tube, the inner tube is heated to avoid the generation of condensed water in the breathing air flow, avoid the condensation of water vapor in the breathing air flow, affect the inhalation humidity, and avoid the condensed water flowing into the nasal mask and affecting the comfort.

[0033] 3. The setting of the structure of the fixing member of the nasal mask body makes the wearing of the nasal mask more comfortable. When lying down after wearing the nasal mask, the foreign body sensation on the head is reduced, and the sleep quality is improved. Description of the Drawings

[0034] Figure 1 It is a schematic structural diagram of an embodiment of the breathing nasal mask of a portable sleep-assisting ventilator of the present utility model.

[0035] Figure 2 It is a schematic structural diagram of an embodiment of the fixing member of the nasal mask body in the present utility model.

[0036] Figure 3 It is a schematic connection diagram of the fixing member of the nasal mask body and the nasal mask body in the present utility model.

[0037] Figure 4 It is a schematic diagram of a wearing state of the breathing nasal mask in the present utility model.

[0038] Figure 5 It is a schematic diagram of another wearing state of the breathing nasal mask in the present utility model.

[0039] Figure 6 It is a schematic connection diagram of the first pipe joint and the nasal mask in the present utility model.

[0040] Figure 7 is Figure 6 a sectional view of

[0041] Figure 8 is a schematic diagram showing the connection between the air duct body and the breathing main machine in the present utility model.

[0042] Among them, the meanings of the reference numerals are as follows:

[0043] 1. Breathing nasal mask; 11. Nasal mask body; 12. Leakage valve; 13. Second pipe joint; 130. Second connecting pipe; 131. Second limiting convex ring; 132. Second sealing rubber ring; 14. Limiting retaining groove; 15. Nasal mask body fixing member; 151. Connecting portion; 152. Telescopic connecting band; 153. Fixing portion; 154. Limiting buckle; 10. Lip; 101. Lower sealing portion;

[0044] 2. Air duct; 20. First limiting convex ring; 21. Air duct body; 22. First connecting end; 221. First connecting pipe; 23. Connecting ball head; 24. Elbow; 241. Inner pipe; 242. Outer pipe; 2421. Connecting shoulder; 2422. Outer expanding wall; 243. Heating member; 25. First pipe joint; 26. First limiting ring groove; 27. First sealing rubber ring; 28. Air guiding column hole; 29. Straight head;

[0045] 31. Third pipe joint; 311. Third connecting pipe; 32. Connecting ring groove. Detailed implementation manners

[0046] For better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0047] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0049] The present utility model discloses a portable sleep-assisting ventilator. A portable sleep-assisting ventilator includes a ventilator main body, a breathing nasal mask 1, and an air duct 2 connecting the breathing nasal mask 1 and the ventilator main body.

[0050] Referring to Figure 1 and Figure 4 , the breathing nasal mask 1 and the air duct 2 of the portable sleep-assisting ventilator are disclosed. The air duct 2 communicates with the breathing main machine and the breathing nasal mask.

[0051] The air duct 2 includes an air duct body 21 and a first pipe joint 25. The first pipe joint 25 is detachably connected to the breathing nasal mask 1.

[0052] One end of the air duct body 21 is provided with an elbow 24, and the other end is provided with a straight head 29. The first pipe joint 25 is fixedly connected to the end of the air duct body 21 provided with the elbow 24.

[0053] The first pipe joint 25 includes a first connection end 22 and a connecting ball head 23. The first connection end 22 is detachably and sealingly connected to the breathing nasal mask 1. The connecting ball head 23 is fixedly connected to the end of the air duct body 21 provided with the elbow 24. The connecting ball head 23 is rotatably connected to the first connection end 22. The axis of the air duct body 21 is perpendicular to the rotation axis of the connecting ball head 23 and rotates around the rotation axis of the connecting ball head 23.

[0054] In this solution, the first connection end 22 is detachably and sealingly connected to the breathing nasal mask 1, realizing the connection and conduction between the air duct and the breathing nasal mask 1. At the same time, it is also convenient to separate the air duct from the breathing nasal mask, and the operation is simple and fast.

[0055] In the above solution, by setting the connecting ball head, and the connecting ball head is rotatably connected to the first connection end 22. When the connecting ball head rotates, it drives the air duct to rotate. Since the air duct has an elbow 24, and the elbow 24 is connected to the connecting ball head 23, that is, when the connecting ball head rotates, it drives the air duct to face different directions, such as Figure 4 and Figure 5 shown, which shows that by rotating the connecting ball head, after wearing, the air duct faces the human chin and forehead directions respectively. In this solution, by facing the air duct in different directions, it adapts to the different needs, usage habits or sleep habits of users and wearers, improves its adaptability, and improves the usage comfort of users and wearers.

[0056] In the above solution, the axis of the air duct body 21 is perpendicular to the rotation axis of the connecting ball head 23 and rotates around the rotation axis of the connecting ball head 23, so that the structure formed by the connecting ball head, the elbow and the air duct body 21 is in an L shape. In this way, by rotating the connecting ball head around its own axis, that is, the rotation axis of the air duct body is at one end of the air duct, it is ensured that after the air duct body rotates with one end of the connecting ball head, the air duct body can face different directions. For example, after wearing, it can face the user's chin direction, or the forehead direction or the cheek side direction, etc.

[0057] In this technical solution, the first connection end 22 includes a first connection pipe 221 in a columnar shape. One end of the first connection pipe 221 is detachably and sealingly connected to the breathing nasal mask 1, and the connecting ball head 23 is connected to the other end of the first connection pipe. The outer diameter of the connecting ball head 23 is adapted to the inner diameter of the first connection pipe, and the connecting ball head 23 is placed inside the first connection pipe 221 and is rotatably connected to the first connection pipe 221, and the connecting ball head 23 rotates around the axis of the first connection pipe 221.

[0058] Based on the above solution, by placing the connecting ball head inside the first connection pipe and making the outer diameter of the connecting ball head adapted to the inner diameter of the first connection pipe, the connection between the first connection pipe and the connecting ball head is realized, ensuring the sealed connection between the connecting ball head and the first connection pipe, and at the same time ensuring that the connecting ball head can rotate around its own axis, that is, the connecting ball head can rotate inside the first connection pipe. If the axes of the first connection pipe and the connecting ball head coincide, then the connecting ball head rotates around the axis of the first connection pipe.

[0059] In this technical solution, a first limiting ring groove 26 is provided on the inner wall of the first connection pipe, and a first sealing rubber ring 27 is fixed in the first limiting ring groove 26. The outer wall of the connecting ball head 23 contacts the first sealing rubber ring 27 and compresses the first sealing rubber ring 27. Through the setting of the first limiting ring groove and the first sealing rubber ring placed in the first limiting ring groove, the first sealing rubber ring is fixed in the first limiting ring groove. At the same time, the outer wall of the connecting ball head contacts the first sealing rubber ring. The first sealing rubber ring has elasticity and can fill the contact position between the inner wall of the first connection pipe and the connecting ball head. On the one hand, it ensures the sealed connection between the connecting ball head and the first connection pipe, and on the other hand, it makes the rotation and replacement of the connecting ball head smooth, avoiding contact friction and wear between the outer wall of the connecting ball head and the inner wall of the first connection pipe.

[0060] In this solution, a first limiting convex ring 20 is further provided on the inner wall of the first connection pipe, and the connecting ball head 23 contacts the first limiting convex ring 20. The first limiting convex ring 20 realizes the positioning of the connecting ball head, ensures the depth of the connecting ball head entering the internal space of the first connection pipe, and ensures the contact between the outer wall of the connecting ball head and the first sealing rubber ring.

[0061] In this solution, an air guide column hole 28 is provided on the connecting ball head 23. The air guide column hole 28 communicates the air guide pipe body 21 and the first connecting pipe, and the axis of the first connecting pipe is parallel to the axis of the air guide column hole 28. The connecting ball head realizes the connection between the air guide pipe body and the first connecting pipe, and also realizes the conduction between the air guide pipe body and the first connecting pipe. Therefore, an air guide column hole is provided on the connecting ball head. At the same time, in order to ensure that the air guide column hole is normally connected and conducted when the connecting ball head rotates, and to ensure the seal between the connecting ball head and the first connecting pipe, the axis of the first connecting pipe needs to be parallel to the axis of the air guide column hole 28.

[0062] In this solution, a leakage valve 12 and a second pipe joint 13 are provided on the breathing nose mask 1, and the first pipe joint 25 is detachably and sealingly connected to the second pipe joint 13. The first connecting end 22 is detachably and sealingly connected to the second pipe joint 13, realizing the connection and conduction between the air guide pipe and the breathing nose mask 1. The setting of the leakage valve 12 realizes the discharge of carbon dioxide waste gas exhaled by the human body out of the body. The leakage valve 12 is a conventional structure used on the breathing mask or breathing nose mask of a ventilator in the prior art. Here, the leakage valve can adopt a structure and product in the prior art that can meet the gas discharge requirements during breathing in this solution.

[0063] In this solution, the second pipe joint 13 includes a columnar second connecting pipe 130 which is fixedly connected to and communicated with the breathing nose mask 1. The inner diameter of the second connecting pipe is adapted to the outer diameter of the first connecting pipe, and the first connecting pipe is threadedly connected to the second connecting pipe, and the connection operation is convenient and fast.

[0064] A second limiting convex ring 131 is provided on the inner wall of the second connecting pipe 130. A second sealing rubber ring 132 is fixed on the side of the second limiting convex ring 131 facing the first connecting pipe 221, and the inner end of the first connecting pipe 221 abuts against the second sealing rubber ring 132. The setting of the second limiting convex ring 131 realizes the positioning and limiting of the first connecting pipe, ensuring the connection depth of the first connecting pipe in the second connecting pipe. At the same time, the setting of the second sealing rubber ring 132 realizes the sealed connection between the first connecting pipe and the second connecting pipe, avoiding problems such as air leakage at the connection position of the first connecting pipe and the second connecting pipe.

[0065] In this solution, the main body 21 of the air duct includes an inner tube 241 and an outer tube 242. The elbow 24 and the straight head 29 are respectively connected to both ends of the inner tube 241 and are integrally formed with the inner tube 241. The outer tube 242 is wrapped around the outside of the inner tube 241. A heating element 243 is provided on the inner wall of the outer tube 242. The heating element 243 contacts the outer wall of the inner tube 241 and heats the inner tube 241. The heating element heats the inner tube. On the one hand, it heats or keeps warm the gas passing through the inner tube and about to enter the human body, improving comfort. On the other hand, it avoids the condensation of water vapor in the gas passing through the inner tube and about to enter the human body, ensuring the humidity of the gas entering the human body and preventing the long-term delivery of overly dry gas into the human body, which may cause discomfort to the human respiratory tract, etc. Also, by setting the heating element, the occurrence of condensed water flow inside the inner tube is avoided. If there is condensed water flow inside the inner tube, as the rotating ball head rotates and the air duct faces different directions, in certain directions or states, the condensed water flow inside the inner tube will flow into the breathing nose mask, causing discomfort to the human body. Therefore, setting the heating element also provides guarantee for the arbitrary orientation in multiple directions of the air duct in this solution.

[0066] In the above solution, generally, heating sheets or heating wires are used as the heating element. A number of heating sheets or a number of heating wires are evenly distributed on the inner wall of the outer tube and all contact the outer wall of the inner tube. After the heating sheets or heating wires are energized and generate heat, the inner tube is heated. Or the heating element can also use one or several sections of spiral heating wires. The spiral heating wires are arranged on the inner wall of the outer tube. After the outer tube is sleeved outside the inner tube, the spiral heating wires are coiled around the outside of the inner tube, ensuring uniform heating of the inner tube. At the same time, it can also play a supporting role for the inner tube, reducing the probability of the inner tube being bent or squeezed and deformed, and ensuring the effective area of the inner tube.

[0067] In this solution, a connecting shoulder 2421 is provided at the straight head 29 end of the outer tube 242 close to the inner tube 241. The connecting shoulder 2421 is detachably and fixedly connected to the main body of the ventilator. The inner tube 241 is arranged such that its straight head 29 end is detachably and fixedly connected to the main body of the ventilator. When connecting, first sleeve the outer tube outside the inner tube and connect the inner tube to the main body of the ventilator, and then connect the outer tube to the main body of the ventilator through the connecting shoulder 2421, thus realizing the connection of the inner tube, the outer tube and the main body of the ventilator. The connection operation is simple and fast.

[0068] In this solution, a third pipe joint 31 is provided on the main body of the ventilator. The third pipe joint 31 is threadedly connected to the inner tube 241 and snap-connected to the outer tube 242. When connecting, first threadedly connect the inner tube to the third pipe joint, and then snap-connect the outer tube to the third pipe joint. The operation is simple and fast, which is convenient for ordinary family members to operate and improves the popularization rate of the ventilator.

[0069] In this solution, the third pipe joint 31 includes a columnar third connecting pipe 311. The inner diameter of the third connecting pipe is adapted to the outer diameter of the inner pipe 241 and is threadedly connected to the inner pipe 241.

[0070] A connecting ring groove 32 is provided at the outer end of the third connecting pipe. The connecting ring groove 32 is formed by the inner wall of the outer end of the third connecting pipe being recessed radially outward along the third connecting pipe. The outer pipe 242 is connected to the connecting ring groove 32.

[0071] An outwardly expanding wall 2422 is provided on the inner wall of the outer pipe 242 near the end of the straight head 29. The inner diameter of the outwardly expanding wall 2422 gradually increases from the inner end to the outer end. A connecting shoulder 2421 is provided on the outer wall of the outer pipe 242 near the end of the straight head 29. The connecting shoulder 2421 is adapted to the connecting ring groove 32. By squeezing the connecting shoulder 2421 along the outer pipe 242, the connecting shoulder 2421 enters and exits the connecting ring groove 32.

[0072] The provision of the outwardly expanding wall 2422 facilitates the inward extrusion of the connecting shoulder, facilitates the connecting shoulder to enter and exit the connecting ring groove 32, and facilitates the connection and disassembly of the outer pipe and the third connecting pipe. The inner pipe and the outer pipe are generally made of plastic with a relatively thin thickness, having a certain elasticity and toughness, ensuring the overall flexibility of the air duct body, and at the same time avoiding the problem of poor ventilation caused by the deformation of the air duct. The inner pipe and the outer pipe with a certain flexibility, especially the outer pipe, enable the connecting shoulder to be inwardly extruded, facilitating the connecting shoulder to enter and exit the connecting ring groove 32, and facilitating the connection and disassembly of the air duct and the breathing host.

[0073] In this solution, the breathing nasal mask 1 includes a nasal mask body 11 and a nasal mask body fixing member 15 detachably connected to the nasal mask body 11.

[0074] Such as Figure 2 , the nasal mask body fixing member 15 includes a connecting portion 151 detachably connected to the nasal mask body 11, a fixing portion 153 placed at the back of the human head after wearing, and a telescopic connecting band 152 connecting the connecting portion 151 and the fixing portion 153. One end of the telescopic connecting band 152 is fixedly connected to the connecting portion 151, and the other end passes through the fixing portion 153 and is provided with a limit buckle 154. By providing the fixing portion 153 placed at the back of the human head after wearing, the wearing comfort is improved, and it is avoided that the fixing rope or the like is on the head or behind the head, affecting the lying or sleeping comfort. The telescopic connecting band is used to connect the fixing portion and the connecting portion. The telescopic connecting band has a certain telescopic property, making the connection reliable and tight. The telescopic connecting band is tied excessively, and it can also ensure that the fixing portion and the connecting portion can fit well with the head after wearing.

[0075] In this solution, the nasal mask body 11 includes a lower sealing portion 101 located at the nasolabial fold position of the human body. The lower sealing portion 101 is arc-shaped, and both ends are bent downward and extend toward the corner of the human lip side. As Figure 1 shown, the lower sealing portion 101 is located at the upper position of the human lip 10. The lower sealing portion 101 is arc-shaped, and both ends are bent downward and extend toward the corner of the human lip side, extending the contact length and contact area between the lower sealing portion 101 and the upper position of the human lip. At the same time, it also ensures that there is enough space between the inner surface of the nasal mask body and the human nostrils, so that the positive pressure gas delivered by the ventilator host can smoothly and quickly enter the human body, and the waste gases such as carbon dioxide discharged from the human body can also smoothly and quickly be discharged through the leakage valve, avoiding the problem that the waste gases such as carbon dioxide discharged from the human body collide with the inner surface position of the nasal mask body in front of the nostrils and rebound into the nostrils.

[0076] In this solution, a limit retaining groove 14 is provided on the outer surface of the nasal mask body 11. The limit retaining groove 14 forms a fixed position of the connecting portion with the outer surface of the nasal mask body 11. The connecting portion 151 is provided at the fixed position where the limit retaining groove 14 forms a connecting portion with the outer surface of the nasal mask body 11. The setting of the limit retaining groove 14 realizes the fixation of the connecting portion.

[0077] One end of the telescopic connecting band 152 passes through the limit retaining groove 14 and is fixedly connected to the connecting portion 151. The limit retaining groove 14 is annular, the connecting portion 151 is annular and is placed in the limit retaining groove 14. There are 5 telescopic connecting bands 152. When worn, the 5 telescopic connecting bands 152 respectively bypass from the sides of the two cheeks, the positions of the two temples and the midline position of the forehead of the human body and are detachably connected to the fixing portion 153. The 5 telescopic connecting bands 152 are evenly positioned and reliably connected, which can ensure the stable and reliable wearing of the breathing nasal mask and avoid the breathing nasal mask falling off the face or leaking air during lying, lying on the side or sleeping.

[0078] The telescopic connecting band 152 has an oblong cross-section and has elasticity. The fixing portion 153 is made of cotton cloth, which improves the wearing comfort and stability and reduces the foreign body sensation during wearing.

[0079] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and retouches can be made, and these improvements and retouches are also regarded as the protection scope of the present utility model.

Claims

1. A portable sleep assisted breathing machine, characterized in that: It includes a ventilator body, a respiratory nasal mask and an airway connecting the respiratory nasal mask and the ventilator body; The airway tube comprises an airway tube body and a first pipe joint, and the first pipe joint is detachably connected to the respiratory nasal mask; One end of the air guide tube body is configured as an elbow, and the other end is configured as a straight head, and the first pipe joint is fixedly connected to the end of the air guide tube body configured as an elbow; The first pipe joint includes a first connecting end and a connecting ball head, the first connecting end head is detachably and sealingly connected to the respiratory nasal mask, the connecting ball head is fixedly connected to one end of the airway tube body which is configured as an elbow, the connecting ball head is rotatably connected to the first connecting end head, and the axis of the airway tube body is perpendicular to the rotation axis of the connecting ball head and rotates around the rotation axis of the connecting ball head.

2. The portable sleep assisted breathing machine according to claim 1, characterized in that: The first connecting end includes a first cylindrical connecting tube, one end of which is detachably and sealingly connected to the respiratory nasal mask, and the connecting ball head is connected to the other end of the first connecting tube. The outer diameter of the connecting ball head is adapted to the inner diameter of the first connecting tube, and the connecting ball head is placed inside the first connecting tube and rotatably connected to the first connecting tube, and the connecting ball head rotates around the axis of the first connecting tube.

3. The portable sleep assisted breathing machine according to claim 2, characterized in that: A first limiting ring groove is arranged on the inner wall of the first connecting tube, a first sealing rubber ring is fixed in the first limiting ring groove, and the outer wall of the connecting ball head contacts with the first sealing rubber ring and compresses the first sealing rubber ring.

4. The portable sleep assisted breathing machine according to claim 3, characterized in that: A first limiting convex ring is also provided on the inner wall of the first connecting tube, and the connecting ball head is in contact with the first limiting convex ring.

5. The portable sleep assisted breathing machine according to claim 2, 3 or 4, characterized in that: The connecting ball head is provided with an air guide column hole, the air guide column hole is connected with the air guide pipe body and the first connecting pipe, and the axis of the first connecting pipe is parallel to the axis of the air guide column hole.

6. The portable sleep assisted breathing machine according to claim 2, characterized in that: The respiratory nasal mask is provided with an air leakage valve and a second pipe joint, and the first pipe joint and the second pipe joint are detachably and sealedly connected.

7. The portable sleep assisted breathing machine according to claim 6, characterized in that: The second pipe joint comprises a second connecting pipe in a cylindrical shape and is fixedly connected to and communicated with the respiratory nasal mask, the inner diameter of the second connecting pipe is adapted to the outer diameter of the first connecting pipe, and the first connecting pipe is threadedly connected to the second connecting pipe; A second limiting convex ring is arranged on the inner wall of the second connecting tube, a second sealing rubber ring is fixed on the side of the second limiting convex ring facing the first connecting tube, and the inner end of the first connecting tube rests on the second sealing rubber ring.

8. The portable sleep assisted breathing machine according to claim 1, characterized in that: The air guide tube body comprises an inner tube and an outer tube, the elbow and the straight head are respectively connected to two ends of the inner tube, and are integrally formed with the inner tube; The outer tube is wrapped around the outer side of the inner tube, and a heating element is arranged on the inner wall of the outer tube, and the heating element contacts the outer wall of the inner tube and heats the inner tube; The straight end of the outer tube close to the inner tube is provided with a connecting shoulder, and the connecting shoulder is detachably fixedly connected to the ventilator body. The inner tube is arranged so that the straight end is detachably fixedly connected to the ventilator body.

9. The portable sleep assisted breathing machine according to claim 8, characterized in that: The ventilator body is provided with a third pipe joint, the third pipe joint is threadedly connected to the inner pipe and buckled with the outer pipe; The third pipe joint comprises a third connecting pipe in a columnar shape, the inner diameter of the third connecting pipe is adapted to the outer diameter of the inner pipe, and the third connecting pipe is threadedly connected to the inner pipe; The outer end of the third connecting pipe is provided with a connecting annular groove, the connecting annular groove is formed by the inner wall of the outer end of the third connecting pipe being recessed outward along the radial direction of the third connecting pipe, and the outer pipe is connected to the connecting annular groove; The inner wall of the end of the outer tube close to the straight head is provided with an outward expansion wall, and the inner diameter of the outward expansion wall gradually increases from the inner end to the outer end. The outer wall of the end of the outer tube close to the straight head is provided with a connecting shoulder, and the connecting shoulder is adapted to the connecting ring groove. The connecting shoulder is squeezed along the outer tube, and the connecting shoulder enters and exits the connecting ring groove.

10. The portable sleep assisted breathing machine according to claim 1, characterized in that: The respiratory nasal mask comprises a nasal mask body and a nasal mask body fixing part detachably connected to the nasal mask body; The nasal mask body fixing part comprises a connecting part detachably connected to the nasal mask body, a fixing part placed at the back of the human head after being worn, and a retractable connecting belt connecting the connecting part and the fixing part; one end of the retractable connecting belt is fixedly connected to the connecting part, and the other end passes through the fixing part and is provided with a limit buckle; The nasal mask body comprises a lower sealing portion located at the nasolabial groove of the human body, wherein the lower sealing portion is arc-shaped, and both ends of the lower sealing portion are bent downward and extend toward the lip corner of the human body; A limit stop groove is arranged on the outer surface of the nose mask body, and the limit stop groove and the outer surface of the nose mask body form a fixed position of the connecting part, and one end of the telescopic connecting belt passes through the limit stop groove and is fixedly connected to the connecting part. The limit stop groove is annular, the connecting part is annular and is placed in the limit stop groove, and the five retractable connecting belts are provided. When worn, the five retractable connecting belts are respectively passed around the cheeks, the temples and the forehead midline of the human body and are detachably connected to the fixing part; The cross section of the telescopic connecting belt is an oblong shape and has elasticity, and the fixing part is made of cotton cloth.

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