Nasal oxygen cannula

Abstract

The utility model relates to the technical field of medical instruments, and discloses a nasal oxygen cannula which comprises a nasal plug, a connecting buckle and an elastic hanging rope, the two ends of the nasal plug are each provided with an extending piece, each extending piece is provided with a connecting face deviating from the face of a patient, each connecting face is provided with a connecting part, and a penetrating channel is formed between each connecting part and the corresponding connecting face; the connecting buckles are arranged at the two ends of the nose plug, and each connecting buckle is provided with a supporting section at least partially penetrating through the penetrating channel, a stopping section in stopping fit with the inner side of the connecting part, and a blocking section connected to the stopping section and located on the side, away from the connecting face, of the connecting part; the end part of the elastic hanging rope is connected to the supporting section, so that the condition that the connecting buckle is in contact with the face of the patient is avoided, and the condition that the face of the user is easy to generate pressure sores is avoided; meanwhile, the situation that the extension sheet deforms towards the face of the patient due to stress concentration is avoided, so that the situation that pressure sores are likely to be generated on the face of the patient is also avoided, and the use experience of the patient is improved.

Description

Technical Field

[0001] This application belongs to the technical field of medical devices, and particularly relates to a nasal oxygen tube. Background Art

[0002] A nasal oxygen tube is a medical supply mainly used to connect with an oxygen supply system for patients to inhale oxygen. It mainly includes nasal plugs and elastic hanging ropes. The nasal plugs have nasal inserts that extend into the patient's nasal cavity. Both ends of the elastic hanging ropes are respectively connected to both ends of the nasal plugs, so that the nasal plugs and the elastic hanging ropes together form an annular structure that can be sleeved on the patient's head to fix the nasal oxygen tube.

[0003] Currently, there are two common connection methods between the elastic hanging rope and the nasal plug. One is that the end of the elastic hanging rope is fixedly connected to the nasal plug through a clamping member. Since the clamping member has a hard protrusion facing the patient's face, the hard protrusion will contact the patient's face. And when the patient's head moves, the hard protrusion will move relative to the patient, resulting in the patient's face being prone to pressure sores, which affects the patient's use experience. The other is that the end of the elastic hanging rope is fixedly connected to the nasal plug through an elastic piece. A connecting column is provided at the end of the nasal plug, and a connecting hole for the connecting column to pass through is provided on the elastic piece. After wearing the nasal oxygen tube on the patient's head, since the elastic hanging rope will deform, stress concentration will occur at the root of the connecting column, so that the end of the nasal plug will deform towards the patient's face, resulting in the end of the nasal plug pressing on the patient. After long-term wearing, it will also cause pressure sores on the patient's face, thus also affecting the patient's use experience and increasing the patient's pain. Utility Model Content

[0004] This application provides a nasal oxygen tube to avoid the occurrence of pressure sores on the patient's face, reduce the patient's pain, and improve the patient's use experience.

[0005] The technical solution adopted in this application is as follows:

[0006] A nasal oxygen tube, comprising:

[0007] A nasal plug, both ends of which have extension pieces. The extension pieces have connection surfaces facing away from the patient's face. A connection part is provided on the connection surface, and a through channel is formed between the connection part and the connection surface;

[0008] Connection buckles, which are arranged at both ends of the nasal plug. The connection buckles have a support section at least partially passing through the through channel, a stop section that is in stop cooperation with the inner side of the connection part, and a blocking section connected to the stop section and located on the side of the connection part away from the connection surface;

[0009] An elastic hanging rope, the end of which is connected to the support section.

[0010] By adopting the above technical solution, when using the nasal oxygen tube in the present application, first connect the two ends of the elastic hanging rope to the supporting sections of the two connecting buckles respectively, and then connect the connecting buckles to the connecting part, that is, pass the supporting section through the threading channel. At this time, the stopping section is in inner stopping cooperation with the connecting part, and the blocking section is located on the side of the connecting part away from the connecting surface. Then, the blocking section and the stopping section jointly limit the supporting section to prevent the supporting section from detaching from the threading channel, thereby increasing the connection stability between the connecting buckle and the nasal plug, and further increasing the connection stability between the nasal oxygen tube and the patient after the nasal oxygen tube is worn on the patient's head.

[0011] Since the connecting part is located on the connecting surface, and the connecting surface is arranged on the side of the extension piece away from the patient's face, it is thus avoided that the connecting buckle contacts the patient's face, thereby avoiding the occurrence of pressure sores on the user's face. At the same time, since a threading channel is formed between the connecting part and the connecting surface, and the supporting section is passed through the threading channel, it is thus avoided that the extension piece generates stress concentration and deforms towards the patient's face, thereby also avoiding the occurrence of pressure sores on the patient's face, and further reducing the occurrence of the situation that the patient feels pain due to wearing the nasal oxygen tube, so as to improve the patient's use experience.

[0012] Optionally, one end of the blocking section is hinged to the stopping section, and the other end of the blocking section is clamped to the supporting section.

[0013] By adopting the above technical solution, since one end of the blocking section is hinged to the stopping section and the other end of the blocking section is clamped to the supporting section, the difficulty of the supporting section detaching from the threading channel is further increased, so as to further increase the connection stability between the elastic hanging rope and the nasal plug. At the same time, the blocking section is hinged to the stopping section, so that when installing the connecting buckle, the blocking section can be rotated to make the blocking section flatten relative to the stopping section, thereby reducing the difficulty of passing the supporting section through the threading channel, and further improving the assembly efficiency of the connecting buckle, so as to improve the assembly experience of medical staff.

[0014] Optionally, the blocking section has a clamping end that is clamped and matched with the supporting section, the clamping end has a clamping part, the supporting section has a rib, and the rib has a matching part that is clamped and matched with the clamping part.

[0015] By adopting the above technical solution, after passing the supporting section through the threading channel, rotate the blocking section to make the clamping part move towards the direction where the rib is located. Finally, make the clamping part contact the rib, and then press the clamping part to make the clamping part and the matching part be clamped together, thereby completing the clamping and matching between the blocking section and the supporting section. In this process, only the blocking section needs to be rotated and pressed, thereby reducing the difficulty of clamping and matching the blocking section and the supporting section together, so as to improve the assembly experience of medical staff.

[0016] Optionally, protrusions are provided on one side of the supporting section facing away from the connecting surface and on one side of the blocking section facing the connecting surface, so that the protrusions press and fix the connecting portion.

[0017] By adopting the above technical solution, after the supporting section is inserted into the insertion channel, the blocking section is rotated so that the clamping portion moves towards the direction where the convex rib is located. Finally, the clamping portion abuts against the convex rib and the protrusion abuts against the connecting portion. Then, the clamping portion is pressed so that the clamping portion is clamped with the matching portion. At this time, the connecting portion deforms under the action of the protrusion to realize the pressing and fixing of the connecting portion, avoiding the situation that the connecting portion may move relative to the connecting buckle, and further increasing the connection stability between the connecting portion and the connecting buckle.

[0018] Optionally, the extension piece is provided with an avoidance space corresponding to the connecting portion, so that the extension piece and the supporting section form an avoidance at the connecting portion.

[0019] By adopting the above technical solution, since the extension piece is provided with an avoidance space corresponding to the connecting portion, the extension piece and the supporting section form an avoidance at the connection, so as to avoid the situation that the area of the extension piece corresponding to the connecting portion deforms towards the patient's face when the elastic hanging rope pulls the connecting portion through the connecting buckle, so as to reduce the occurrence of facial sores on the patient's face, and further improve the patient's use experience. At the same time, due to the setting of the avoidance space, the area of the extension piece opposite to the connecting portion forms an avoidance with the supporting section, so that the supporting section can quickly pass through the connecting portion, and the force required to pass the supporting section through the connecting portion can also be reduced, thereby further improving the assembly efficiency of the connecting buckle.

[0020] Optionally, the nasal plug includes a body and a nasal plug seat. The body has a receiving cavity for receiving the nasal plug seat and a nasal insert communicating with the receiving cavity. The nasal plug seat communicates with the receiving cavity and is provided with an avoidance notch corresponding to the nasal insert and recessed into itself.

[0021] By adopting the above technical solution, since the nasal plug seat is provided with an avoidance notch corresponding to the nasal insert and recessed into itself, the avoidance notch can form an avoidance with the nasal insert, so as to increase the deformation range of the nasal insert, thereby avoiding the situation that the nasal insert may cause damage to the surface of the patient's nasal cavity due to a small deformation range, so as to further reduce the pain felt by the patient due to wearing the nasal oxygen tube, and further improve the patient's use experience. At the same time, after the nasal insert extends into the patient's nasal cavity, the part of the body abutting against the patient's nose can deform according to the elastic force of the elastic hanging rope and the position where it is sleeved on the patient's head to adjust itself, so as to reduce the pressure exerted by the body on the patient's nose, and further improve the user's use experience.

[0022] Optionally, the nasal plug seat is convexly provided with a limiting rib extending along the circumferential direction of the avoidance notch, and the inner wall of the accommodating cavity is provided with a limiting groove, and the limiting rib is located in the limiting groove to limit the movement of the nasal plug seat in its own circumferential direction and axial direction.

[0023] By adopting the above technical solution, after the nasal plug seat is installed into the body, the limiting rib is located in the limiting groove, so that the cooperation between the limiting rib and the limiting groove limits the relative movement of the nasal plug seat in its own axial direction and circumferential direction with respect to the body, so as to increase the connection stability between the nasal plug seat and the body, and at the same time avoid the situation that the nasal plug cannot supply oxygen to the nasal insert due to the relative movement of the nasal plug body, thereby ensuring the stability when the nasal oxygen tube supplies oxygen to the patient. At the same time, the cooperation between the limiting rib and the limiting groove can also increase the sealing performance between the nasal plug seat and the body, so as to improve the oxygen supply efficiency for the patient. In addition, the cooperation between the limiting rib and the limiting groove can also position the installation position of the nasal plug seat, so as to achieve the effect that medical staff can quickly install the nasal plug seat in place.

[0024] Optionally, the nasal plug seat is provided with a positioning rib, and the inner wall of the accommodating cavity is provided with a positioning groove for accommodating the positioning rib.

[0025] By adopting the above technical solution, after the nasal plug seat is installed into the accommodating cavity, the positioning rib is located in the positioning groove, so that the cooperation between the positioning rib and the positioning groove positions the nasal plug seat, so as to achieve the effect of quickly installing the nasal plug seat in place. At the same time, the cooperation between the positioning rib and the positioning groove can also increase the limiting points between the nasal plug seat and the body, so as to increase the connection stability between the nasal plug seat and the body.

[0026] Optionally, the nasal plug includes a body having an accommodating cavity and a nasal plug seat provided in the accommodating cavity. The nasal plug seat has a communication section located outside the accommodating cavity. The nasal oxygen tube further includes an air supply pipe, a hose ferrule and a hose sheath. One end of the air supply pipe is threadedly connected to the communication section, the other end of the air supply pipe is threadedly connected to the hose ferrule, and the hose sheath is sleeved outside the hose ferrule and the two are snap-fitted.

[0027] By adopting the above technical solution, since the two ends of the air supply pipe are respectively threadedly connected to the communication section and the hose ferrule, the assembly difficulty of the air supply pipe is reduced, and at the same time, the sealing performance between the air supply pipe and the nasal plug seat and the hose ferrule is ensured; at the same time, since the hose sheath is sleeved outside the hose ferrule and the two are snap-fitted, on the one hand, the assembly difficulty of multiple pairs of hose sheaths is reduced, and on the other hand, the hose sheath and the hose ferrule can rotate relative to each other, so that the pipeline communicated with the hose ferrule can rotate relative to the air supply pipe, so as to avoid the situation that the two are wound together, and further avoid the situation that the patient feels uncomfortable due to the air supply pipeline and the air supply pipe being wound together, so as to further improve the patient's use experience.

[0028] Optionally, a communicating pipe is arranged inside the hose sheath. A communicating cavity for an external pipeline to extend into is formed between the communicating pipe and the inner wall of the hose sheath. One of the outer wall of the hose ferrule and the inner wall of the communicating pipe is provided with a clamping groove, and the other of the two is provided with a clamping rib that is clamped and matched with the clamping groove.

[0029] By adopting the above technical solution, when connecting the hose ferrule to the hose sheath, first align the hose ferrule with the hose sheath, and then apply a pressure to the hose ferrule in the direction towards the hose sheath to make the hose ferrule extend into the communicating pipe. Finally, the clamping rib is clamped and matched with the clamping groove to complete the installation of the hose ferrule to the hose sheath. During the installation process of the hose ferrule, only the hose ferrule needs to be pressed, thereby reducing the assembly difficulty of the hose ferrule and improving the assembly efficiency of the hose ferrule. Since a communicating cavity for an external pipeline to extend into is formed between the communicating pipe and the inner wall of the hose sheath, when connecting the nasal oxygen tube to the external oxygen supply pipeline, only the external pipeline needs to be extended into the communicating cavity. On the one hand, it reduces the difficulty of connecting the nasal oxygen tube to the external oxygen supply pipeline, and on the other hand, it increases the sealing performance between the nasal oxygen tube and the external oxygen supply pipeline. In addition, the external oxygen supply pipeline is connected to the communicating cavity, so that the external oxygen supply pipeline can apply a radial pressure to the communicating pipe to avoid the situation that the hose ferrule may be separated from the communicating pipe due to the deformation of the communicating pipe, thereby ensuring the clamping stability between the hose ferrule and the communicating pipe.

[0030] Optionally, the hose ferrule is provided with a stop portion. When the clamping rib is clamped and matched with the clamping groove, the stop portion is in stop cooperation with the end of the communicating pipe.

[0031] By adopting the above technical solution, when pressing the hose ferrule to assemble the hose ferrule with the hose sheath, the stop portion moves along with the hose ferrule. When the stop portion is in stop cooperation with the end of the communicating pipe, the hose ferrule cannot move relative to the hose sheath. At this time, the clamping rib is clamped and matched with the clamping groove to achieve the effect of quickly installing the hose ferrule in place.

[0032] Optionally, the hose sheath extends outward to be provided with a flange, and the flange is provided with a connection hole.

[0033] By adopting the above technical solution, since the hose sheath is provided with an edge extending outward, when the medical staff assembles the hose ferrule and the hose sheath together, the edge can block the medical staff's hands to avoid sliding between the medical staff's hands and the hose sheath, thereby improving the efficiency of assembling the hose ferrule and the hose sheath together. At the same time, since the edge is provided with a connection hole, the medical staff can pass the connection rope through the connection hole to relatively fix the hose sheath, thereby avoiding the patient's discomfort caused by the movement of the nasal oxygen cannula due to pulling on the oxygen supply pipeline, and reducing the occurrence of the nasal oxygen cannula being deviated due to the patient's dragging, thereby further improving the patient's use experience.

[0034] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0035] 1. The nasal oxygen tube in the present application includes a nasal plug, a connecting buckle and an elastic hanging rope, wherein both ends of the nasal plug are provided with an extension piece, the extension piece has a connecting surface away from the patient's face, the connecting surface is provided with a connecting portion, a through-channel is formed between the connecting portion and the connecting surface, the connecting buckle is provided at both ends of the nasal plug, and the connecting buckle has a supporting section at least partially through the through-channel, a stopper section matched with the inner stopper of the connecting portion, and a blocking section connected to the stopper section and located on the side of the connecting portion away from the connecting surface, the end of the elastic hanging rope is connected to the supporting section, thereby avoiding the contact between the connecting buckle and the patient's face, thereby avoiding the user's face from easily forming pressure sores; at the same time, since a through-channel is formed between the connecting portion and the connecting surface, the supporting section is passed through the through-channel, thereby avoiding the deformation of the extension piece toward the patient's face due to stress concentration, thereby also avoiding the patient's face from easily forming pressure sores, thereby reducing the pain felt by the patient due to wearing the nasal oxygen tube, so as to improve the patient's use experience.

[0036] 2. One end of the blocking segment in the present application is hinged to the stop segment, and the other end of the blocking segment is clamped to the supporting segment, thereby further increasing the difficulty of the supporting segment detaching from the insertion channel, so as to further increase the connection stability between the elastic hanging rope and the nasal plug; at the same time, the blocking segment is hinged to the stop segment, so that when the connecting buckle is installed, the blocking segment can be rotated to flatten the blocking segment relative to the stop segment, thereby reducing the difficulty of inserting the supporting segment into the insertion channel, thereby improving the assembly efficiency of the connecting buckle, so as to improve the assembly experience of medical staff.

[0037] 3. The blocking section in this application has a clamping end that is clamped and cooperated with the supporting section. The clamping end has a clamping portion, and the supporting section has a rib. The rib has a cooperating portion that is clamped and cooperated with the clamping portion. After the supporting section is inserted into the insertion channel, the blocking section is rotated so that the clamping portion moves in the direction where the rib is located. Eventually, the clamping portion abuts against the rib, and then the clamping portion is pressed so that the clamping portion is clamped together with the cooperating portion, thereby completing the clamping and cooperation between the blocking section and the supporting section. In this process, only the blocking section needs to be rotated and pressed, thereby reducing the difficulty of clamping and cooperating the blocking section and the supporting section together and improving the assembly experience of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0039] Figure 1 is a schematic structural diagram of the nasal oxygen tube under an embodiment of the present application;

[0040] Figure 2 is an exploded structural diagram of the nasal oxygen tube under an embodiment of the present application;

[0041] Figure 3 is a schematic connection structure diagram of the connection buckle and the connection portion under an embodiment of the present application;

[0042] Figure 4 is a schematic structural diagram of the connection buckle under an embodiment of the present application, and the clamping of the blocking section and the supporting section is shown in this drawing;

[0043] Figure 5 is a schematic structural diagram of the connection buckle under an embodiment of the present application, and the state before the blocking section and the supporting section are not clamped is shown in this drawing;

[0044] Figure 6 is a schematic structural diagram of the body under an embodiment of the present application;

[0045] Figure 7 is a cross-sectional view of the nasal plug under an embodiment of the present application;

[0046] Figure 8 is a cross-sectional view of the nasal plug from another perspective under an embodiment of the present application;

[0047] Figure 9 is a schematic structural diagram of the nasal plug seat under an embodiment of the present application;

[0048] Figure 10A cross-sectional view of the nasal plug base according to an embodiment of the present application;

[0049] Figure 11 A cross-sectional view of the hose ferrule and the hose sheath according to an embodiment of the present application.

[0050] Reference numerals:

[0051] 1. Nasal plug; 11. Body; 111. Extension piece; 112. Connection part; 113. Avoidance space; 114. Accommodation cavity; 115. Limit groove; 116. Positioning groove; 117. Nasal insert; 12. Nasal plug base; 121. Avoidance notch; 122. Limit rib; 123. Positioning rib; 124. Communication section;

[0052] 2. Connection buckle; 21. Support section; 211. Convex rib; 212. Matching part; 213. Protrusion; 214. Connection groove; 22. Stop section; 23. Blocking section; 231. Clamping part; 232. Guide inclined surface;

[0053] 3. Elastic hanging rope;

[0054] 4. Air supply pipe;

[0055] 5. Hose ferrule; 51. Clamping groove; 52. Stop part;

[0056] 6. Hose sheath; 61. Communication pipe; 611. Communication cavity; 612. Clamping rib; 62. Edge; 621. Connection hole. Detailed implementation manners

[0057] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0058] Many specific details are set forth in the following description in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that, without conflict, the embodiments of the present application and the features in each embodiment may be combined with each other.

[0059] In addition, in the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application 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 to the present application.

[0060] In this application, unless otherwise clearly defined or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] In this application, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0062] Refer to Figures 1 to 11 , a nasal oxygen tube is disclosed, which includes a nasal plug 1, a connecting buckle 2, and an elastic hanging rope 3. Both ends of the nasal plug 1 have extension pieces 111. Each extension piece 111 has a connecting surface facing away from the patient's face. Each connecting surface is provided with a connecting portion 112. Each connecting portion 112 forms a threading channel with the respective corresponding connecting surface; there are two connecting buckles 2 and they are respectively arranged at both ends of the nasal plug 1. Each connecting buckle 2 has a supporting section 21 at least partially passing through the threading channel, a stopping section 22 that is in stopping cooperation with the inner side of the connecting portion 112, and a blocking section 23 connected to the stopping section 22 and located on the side of the connecting portion 112 away from the connecting surface; the two ends of the elastic hanging rope 3 are respectively connected to the two supporting sections 21.

[0063] It should be noted that the inner side of the connecting portion 112 refers to the side of the connecting portion 112 close to the center of the nasal plug 1, and can also be understood as the side where the two connecting portions 112 are close to each other.

[0064] When using the nasal oxygen cannula in the present application, first connect the two ends of the elastic hanging rope 3 to the supporting segments 21 of the two connecting buckles 2 respectively, and then connect the connecting buckle 2 to the connecting part 112, that is, insert the supporting segment 21 into the insertion channel. At this time, the stop segment 22 cooperates with the inner stopper of the connecting part 112, and the blocking segment 23 is located on the side of the connecting part 112 away from the connecting surface, and then the blocking segment 23 and the stop segment 22 jointly limit the supporting segment 21 to prevent the supporting segment 21 from detaching from the insertion channel, thereby increasing the connection stability between the connecting buckle 2 and the nasal plug 1, and then increasing the connection stability between the nasal oxygen cannula and the patient after the nasal oxygen cannula is worn on the patient's head.

[0065] Since the connecting portion 112 is located on the connecting surface, and the connecting surface is located on the side of the extension piece 111 away from the patient's face, the connection buckle 2 is prevented from contacting the patient's face, thereby preventing the user's face from easily developing pressure sores. At the same time, since a penetration channel is formed between the connecting portion 112 and the connecting surface, the support section 21 is penetrated in the penetration channel, thereby preventing the extension piece 111 from deforming toward the patient's face due to stress concentration, thereby also preventing the patient's face from easily developing pressure sores, thereby reducing the pain felt by the patient due to wearing the nasal oxygen cannula, thereby improving the patient's user experience.

[0066] The present application does not specifically limit the structure of the connecting portion 112. Preferably, refer to Figure 1 , Figure 2 and Figure 3 The connecting portion 112 is a structure with a C-shaped cross section, and both ends of the connecting portion 112 are connected to the extension piece 111, so that a penetration channel is formed between the connecting portion 112 and the connecting surface. In other embodiments, the connecting portion 112 can also be other structures, for example, two connecting portions 112 are arranged opposite to each other, and the cross section of each connecting portion 112 is L-shaped, so that the two connecting portions 112 and the connecting surface together form a penetration channel.

[0067] The present application does not specifically limit the connection method between the blocking section 23 and the stop section 22, and any one of the following embodiments may be adopted:

[0068] Embodiment 1. In this embodiment, the blocking segment 23 is fixedly connected to the stop segment 22 so that the blocking segment 23 and the stop segment 22 together form a structure with an L-shaped cross-sectional shape to ensure the connection stability between the connecting buckle 2 and the connecting part 112, while reducing the production difficulty and production cost of the connecting buckle 2.

[0069] Implementation method 2. In this implementation method, refer to Figure 2 , Figure 3 , Figure 4 and Figure 5, one end of the blocking section 23 is hinged to the stop section 22, and the other end of the blocking section 23 is clamped to the support section 21, thereby further increasing the difficulty for the support section 21 to break away from the through-channel, so as to further increase the connection stability between the elastic lanyard 3 and the nasal plug 1; at the same time, the blocking section 23 is hinged to the stop section 22, so that when installing the connection buckle 2, the blocking section 23 can be rotated to make the blocking section 23 flatten relative to the stop section 22, thereby reducing the difficulty of threading the support section 21 through the through-channel, and then improving the assembly efficiency of the connection buckle 2 to improve the assembly experience of medical staff.

[0070] The present application does not specifically limit the hinged manner between the blocking section 23 and the stop section 22, and any one of the following embodiments can be adopted:

[0071] Embodiment 1. In this embodiment, referring to Figure 5 , a thin-wall structure is provided between the blocking section 23 and the stop section 22, that is to say, the blocking section 23 and the stop section 22 are hinged through the deformation of the thin-wall structure, so as to reduce the production cost of the connection buckle 2 and at the same time reduce the number of components to be assembled for the nasal oxygen tube, so as to improve the assembly efficiency of the nasal oxygen tube.

[0072] Embodiment 2. In this embodiment, a hinge shaft passing through the blocking section 23 and the stop section 22 is provided between the blocking section 23 and the stop section 22, that is to say, the blocking section 23 and the stop section 22 are hinged through the hinge shaft, so as to ensure the connection stability between the blocking section 23 and the stop section 22, and further ensure the connection stability between the elastic lanyard 3 and the nasal plug 1.

[0073] The present application does not specifically limit the clamping cooperation manner between the blocking section 23 and the support section 21. Preferably, referring to Figure 5 , the blocking section 23 has a clamping end for clamping cooperation with the support section 21, the clamping end has a clamping portion 231, the support section 21 has a rib 211, and the rib 211 has a cooperating portion 212 for clamping cooperation with the clamping portion 231.

[0074] Specifically, after threading the support section 21 through the through-channel, rotate the blocking section 23 to make the clamping portion 231 move towards the direction where the rib 211 is located, and finally make the clamping portion 231 abut against the rib 211, and then press the clamping portion 231 to make the clamping portion 231 and the cooperating portion 212 be clamped together, thereby completing the clamping cooperation between the blocking section 23 and the support section 21. In this process, only the blocking section 23 needs to be rotated and pressed, thereby reducing the difficulty of clamping the blocking section 23 and the support section 21 together to improve the assembly experience of medical staff.

[0075] The present application does not specifically limit the number of the clamping portion 231 and the cooperating portion 212. Preferably, referring toFigure 5 , the clamping portion 231 and the matching portion 212 are provided in a one-to-one correspondence to increase the clamping matching points between the blocking section 23 and the supporting section 21, thereby increasing the connection stability between the connecting buckle 2 and the connecting portion 112. In other implementation examples, the clamping portion 231 and the matching portion 212 can also be provided in one.

[0076] The present application does not specifically limit the structure of the clamping portion 231 and the matching portion 212. Preferably, refer to Figure 5 The clamping portion 231 is a clamping block provided at the clamping end, the clamping block protrudes from the side of the clamping end, the matching portion 212 is a groove structure provided on the convex rib 211, and the clamping block is clamped and matched with the groove structure to realize the clamping fit between the blocking section 23 and the supporting section 21.

[0077] Better, refer to Figure 5 The clamping block is provided with a guiding slope 232. When the clamping block contacts the top of the convex rib 211, the guiding slope 232 contacts the convex rib 211, so that the guiding slope 232 guides the clamping block, and then the guiding slope 232 can more easily pass over the top of the convex rib 211, and finally the clamping block and the groove structure are clamped together to reduce the force required for medical staff to assemble the connecting buckle 2.

[0078] In other implementation examples, the clamping portion 231 may also be a groove-shaped structure at the clamping end, and the matching portion 212 is a block-shaped structure provided on the top of the rib 211 and clamped with the groove-shaped structure.

[0079] In other embodiments, the blocking segment 23 has a connecting end connected to the stop segment 22 and a clamping end opposite to the connecting end, and the supporting segment 21 is provided with an L-shaped rib corresponding to the clamping end, so that after the blocking segment 23 and the stop segment 22 are clamped together, the L-shaped rib is clamped with the end face of the clamping end facing away from the connecting face.

[0080] In a preferred embodiment, referring to Figure 4 and Figure 5 A protrusion 213 is provided on the side of the supporting section 21 facing away from the connecting surface and on the side of the blocking section 23 facing the connecting surface, so that the protrusion 213 presses and fixes the connecting portion 112.

[0081] Specifically, after the supporting section 21 is inserted into the insertion channel, the connecting portion 112 is deformed under the action of the protrusion 213, so that the protrusion 213 on the supporting section 21 and the protrusion 213 on the blocking section 23 jointly squeeze and fix the connecting portion 112, thereby avoiding the possibility of relative movement between the connecting portion 112 and the connecting buckle 2, thereby increasing the connection stability between the connecting portion 112 and the connecting buckle 2.

[0082] Better, refer to Figure 5The protrusion 213 is a truncated cone structure to increase the pressure at the connection position between the protrusion 213 and the connecting portion 112, thereby further increasing the connection stability between the connecting buckle 2 and the connecting portion 112.

[0083] In a preferred embodiment, referring to Figure 1 and Figure 6 , the extension piece 111 is provided with a clearance position 113 corresponding to the connection part 112, so that the extension piece 111 and the support section 21 can avoid each other at the connection part 112, so as to avoid the situation that when the elastic hanging rope 3 pulls the connection part 112 through the connection buckle 2, the area where the extension piece 111 and the connection part 112 are located is deformed toward the patient's face, so as to reduce the situation that the patient's face is prone to facial acne, thereby further improving the patient's use experience. At the same time, due to the setting of the clearance position 113, the area corresponding to the extension piece 111 and the connection part 112 is avoided from the support section 21, so that the support section 21 can quickly pass through the connection part 112, and it can also reduce the force required to pass the support section 21 through the connection part 112, thereby further improving the assembly efficiency of the connection buckle 2.

[0084] Better, refer to Figure 1 and Figure 6 The avoidance position 113 is formed by a hole structure provided on the extension piece 111 , and the hole structure penetrates the extension piece 111 in the thickness direction thereof to ensure the avoidance effect with the support section 21 .

[0085] The present application does not specifically limit the connection method between the elastic hanging rope 3 and the supporting section 21. Preferably, refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 The portion of the support section 21 located outside the connection portion 112 is provided with at least two connection grooves 214 at intervals, and the ends of the elastic hanging rope 3 are inserted into the two connection grooves 214, so that the medical staff can adjust the relative position of the elastic hanging rope 3 and the support section 21 according to the patient's head size to increase the comfort of the patient's wearing and ensure the stability of the nasal oxygen tube worn on the patient's head. In other embodiments, the elastic hanging rope 3 can also be connected to the support section 21 by gluing or other fixing methods.

[0086] In a preferred embodiment, referring to Figure 6 , Figure 7 and Figure 8, the nasal plug 1 includes a main body 11 and a nasal plug base 12. The main body 11 has a receiving cavity 114 for accommodating the nasal plug base 12 and a nasal insert 117 communicating with the receiving cavity 114. The nasal plug base 12 communicates with the receiving cavity 114 and is recessed inwardly corresponding to the nasal insert 117 to form an avoidance notch 121, so that the avoidance notch 121 can form an avoidance with the nasal insert 117, increasing the range within which the nasal insert 117 can deform, thus avoiding the situation where the relatively small deformation range of the nasal insert 117 may cause harm to the surface of the patient's nasal cavity, further reducing the pain felt by the patient due to wearing the nasal oxygen tube, and further improving the user experience. At the same time, after the nasal insert 117 extends into the patient's nasal cavity, the part of the main body 11 that abuts against the patient's nose can deform according to the elastic force of the elastic hanging rope 3 and the position where it is sleeved on the patient's head to adjust itself, reducing the pressure exerted by the main body 11 on the patient's nose, and further enhancing the user experience.

[0087] It can be understood that the extension pieces 111 are provided at both ends of the main body 11 to ensure the stability of wearing the nasal oxygen tube on the patient's head.

[0088] In a preferred embodiment, referring to Figure 8 , Figure 9 and Figure 10 , the nasal plug base 12 is convexly provided with a limiting rib 122 extending along the circumferential direction of the avoidance notch 121, and the cavity wall of the receiving cavity 114 is provided with a limiting groove 115. The limiting rib 122 is located in the limiting groove 115 to limit the movement of the nasal plug base 12 in its own circumferential and axial directions.

[0089] Specifically, after the nasal plug base 12 is installed into the main body 11, the limiting rib 122 is located in the limiting groove 115, so that the cooperation between the limiting rib 122 and the limiting groove 115 limits the relative movement of the nasal plug base 12 in its own axial and circumferential directions with respect to the main body 11, increasing the connection stability between the nasal plug base 12 and the main body 11. At the same time, it avoids the situation where the nasal plug base 12 cannot supply oxygen to the nasal insert 117 due to the relative movement with the main body 11, thus ensuring the stability of oxygen supply to the patient by the nasal oxygen tube. At the same time, the cooperation between the limiting rib 122 and the limiting groove 115 can also increase the sealing performance between the nasal plug base 12 and the main body 11, improving the oxygen supply efficiency for the patient. In addition, the cooperation between the limiting rib 122 and the limiting groove 115 can also position the installation position of the nasal plug base 12, achieving the effect that medical staff can quickly install the nasal plug base 12 in place.

[0090] In a preferred embodiment, referring to Figure 7 , Figure 9 and Figure 10 , the nasal plug base 12 is provided with a positioning rib 123, and the cavity wall of the receiving cavity 114 is provided with a positioning groove 116 for accommodating the positioning rib 123.

[0091] Specifically, after the nasal plug base 12 is installed in the accommodation cavity 114, the positioning rib 123 is located in the positioning groove 116, so that the cooperation between the positioning rib 123 and the positioning groove 116 positions the nasal plug base 12, achieving the effect of quickly installing the nasal plug base 12 in place. At the same time, the cooperation between the positioning rib 123 and the positioning groove 116 can also increase the limiting points between the nasal plug base 12 and the main body 11, thereby increasing the connection stability between the nasal plug base 12 and the main body 11.

[0092] Preferably, referring to Figure 7 、 Figure 9 and Figure 10 , the positioning rib 123 is disposed opposite to the avoidance notch 121 to increase the connection stability between the nasal plug base 12 and the main body 11.

[0093] This application does not specifically limit the number of the positioning ribs 123 and the positioning grooves 116. Preferably, referring to Figure 7 、 Figure 9 and Figure 10 , a plurality of the positioning ribs 123 and the positioning grooves 116 are provided in one-to-one correspondence to increase the positioning points of the nasal plug base 12, thereby further increasing the connection stability between the nasal plug base 12 and the main body 11. In other embodiments, one positioning rib 123 and one positioning groove 116 may also be provided.

[0094] In a preferred embodiment, referring to Figure 7 、 Figure 9 and Figure 10 , the nasal plug 1 includes a main body 11 having an accommodation cavity 114 and a nasal plug base 12 disposed in the accommodation cavity 114. The nasal plug base 12 has a communication section 124 located outside the accommodation cavity 114. The nasal oxygen tube further includes an air supply pipe 4, a hose ferrule 5, and a hose sheath 6. One end of the air supply pipe 4 is threadedly connected to the communication section 124, and the other end of the air supply pipe 4 is threadedly connected to the hose ferrule 5. The hose sheath 6 is sleeved outside the hose ferrule 5 and the two are snap-fitted.

[0095] That is to say, since the two ends of the air supply pipe 4 are respectively threadedly connected to the communication section 124 and the hose ferrule 5, the assembly difficulty of the air supply pipe 4 is reduced, and at the same time, the sealing performance between the air supply pipe 4 and the nasal plug base 12 and the hose ferrule 5 is ensured.

[0096] At the same time, since the hose sheath 6 is sleeved outside the hose ferrule 5 and the two are snap-fitted, on the one hand, the assembly difficulty of the hose sheath 6 is reduced, and on the other hand, the hose sheath 6 and the hose ferrule 5 can rotate relative to each other, so that the pipeline communicated with the hose ferrule 5 can rotate relative to the air supply pipe 4, avoiding the situation that the two are wound together, and further avoiding the situation that the patient feels uncomfortable due to the winding of the air supply pipeline and the air supply pipe 4, thereby further improving the patient's use experience.

[0097] This application does not specifically limit the threaded connection method of the air supply pipe 4, the hose ferrule 5, and the connecting section 124. Preferably, referring to Figure 1 , Figure 2 , Figure 7 and Figure 11 , the air supply pipe 4 is a threaded pipe, and thread ribs that are in threaded cooperation with the inner wall of the threaded pipe are provided on the outer parts of both the connecting section 124 and the hose ferrule 5 for the threaded connection of the air supply pipe 4 with the hose ferrule 5 and the connecting section 124. In other embodiments, the air supply pipe 4, the hose ferrule 5, and the connecting section 124 are threadedly connected through threaded grooves provided.

[0098] In a preferred embodiment, referring to Figure 11 , a connecting pipe 61 is provided inside the hose sheath 6, and a connecting cavity 611 for an external pipeline to extend into is formed between the inner wall of the connecting pipe 61 and the inner wall of the hose sheath 6. A clamping groove 51 is provided on one of the outer wall of the hose ferrule 5 and the inner wall of the connecting pipe 61, and a clamping rib 612 that is in clamping cooperation with the clamping groove 51 is provided on the other.

[0099] Specifically, when connecting the hose ferrule 5 and the hose sheath 6 together, first align the hose ferrule 5 and the hose sheath 6, and then apply a pressure to the hose ferrule 5 in the direction towards the hose sheath 6 so that the hose ferrule 5 extends into the connecting pipe 61. Finally, make the clamping rib 612 and the clamping groove 51 in clamping cooperation to complete the installation of the hose ferrule 5 onto the hose sheath 6. During the installation process of the hose ferrule 5, only the hose ferrule 5 needs to be pressed, thereby reducing the assembly difficulty of the hose ferrule 5 and improving the assembly efficiency of the hose ferrule 5.

[0100] Since a connecting cavity 611 for an external pipeline to extend into is formed between the inner wall of the connecting pipe 61 and the inner wall of the hose sheath 6, when connecting the nasal oxygen tube with an external oxygen supply pipeline, only need to extend the external pipeline into the connecting cavity 611. On the one hand, it reduces the difficulty of connecting the nasal oxygen tube with the external oxygen supply pipeline, and on the other hand, it increases the sealing performance between the nasal oxygen tube and the external oxygen supply pipeline. In addition, the external oxygen supply pipeline is connected to the connecting cavity 611, and then the external oxygen supply pipeline can apply a radial pressure to the connecting pipe 61 to avoid the situation that the hose ferrule 5 may be separated from the connecting pipe 61 due to the deformation of the connecting pipe 61, so as to ensure the clamping stability of the hose ferrule 5 and the connecting pipe 61.

[0101] Preferably, referring to Figure 2 and Figure 11 , the clamping groove 51 is provided on the outer wall of the hose ferrule 5 and extends along the circumferential direction of the hose ferrule 5, and the clamping rib 612 is provided on the inner wall of the connecting pipe 61 and extends along the circumferential direction of the connecting pipe 61 to increase the clamping area between the hose ferrule 5 and the hose sheath 6, thereby increasing the connection stability between the two.

[0102] Further, referring to Figure 2 and Figure 11 , the hose ferrule 5 is provided with a stop portion 52. When the clamping rib 612 is clamped with the clamping groove 51, the stop portion 52 is in stop cooperation with the end of the communicating pipe 61, so as to quickly install the hose ferrule 5 in place and avoid the situation of excessive movement of the hose ferrule 5.

[0103] Further, referring to Figure 2 and Figure 11 , the hose sheath 6 extends outwardly with a rim 62. Then, when the medical staff assembles the hose ferrule 5 and the hose sheath 6 together, the rim 62 can block the hands of the medical staff to avoid the situation of the hands of the medical staff sliding with the hose sheath 6, thereby improving the efficiency of assembling the hose ferrule 5 and the hose sheath 6 together; the rim 62 is provided with a connection hole 621, and then the medical staff can pass the connecting rope through the connection hole 621 to relatively fix the hose sheath 6, so as to avoid the situation that the movement of the nasal oxygen tube caused by the pulling of the oxygen supply pipeline makes the patient feel uncomfortable, and reduce the situation that the nasal oxygen tube deviates due to the dragging of the patient, thereby further improving the use experience of the patient.

[0104] What is not described in this application can be realized by adopting or referring to the existing technology.

[0105] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other, and the key point of each embodiment is to illustrate the differences from other embodiments.

[0106] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A nasal oxygen cannula, characterized in that: include: A nasal plug (1), having extension pieces (111) at both ends, the extension piece (111) having a connection surface facing away from the patient's face, the connection surface being provided with a connection portion (112), and a penetration channel being formed between the connection portion (112) and the connection surface; A connecting buckle (2) is provided at both ends of the nasal plug (1), and the connecting buckle (2) comprises a supporting section (21) at least partially penetrated in the penetration channel, a stop section (22) matched with the inner stopper of the connecting portion (112), and a blocking section (23) connected to the stop section (22) and located on a side of the connecting portion (112) away from the connecting surface; An elastic hanging rope (3) has its end connected to the supporting section (21).

2. A nasal oxygen cannula according to claim 1, characterized in that: One end of the blocking section (23) is hinged to the stop section (22), and the other end of the blocking section (23) is clamped to the supporting section (21).

3. A nasal oxygen cannula according to claim 2, characterized in that: The blocking section (23) has a clamping end that is clamped and matched with the supporting section (21), and the clamping end has a clamping portion (231). The supporting section (21) has a convex rib (211), and the convex rib (211) has a matching portion (212) that is clamped and matched with the clamping portion (231).

4. A nasal oxygen cannula according to claim 1, characterized in that: A protrusion (213) is provided on the side of the support section (21) facing away from the connection surface and a side of the blocking section (23) facing the connection surface, so that the protrusion (213) presses and fixes the connection portion (112).

5. A nasal oxygen cannula according to claim 1, characterized in that: The extension piece (111) is provided with an avoidance position (113) corresponding to the connection portion (112), so that the extension piece (111) and the support section (21) are avoided at the connection portion (112).

6. A nasal oxygen cannula according to claim 1, characterized in that: The nasal plug (1) comprises a body (11) and a nasal plug seat (12); the body (11) has a receiving cavity (114) for receiving the nasal plug seat (12) and a nasal plug (117) connected to the receiving cavity (114); the nasal plug seat (12) is connected to the receiving cavity (114) and is provided with an avoidance notch (121) which is recessed into the interior of the nasal plug (117) corresponding to the nasal plug (117).

7. A nasal oxygen cannula according to claim 6, characterized in that: The nasal plug holder (12) is provided with a limiting rib (122) extending along the circumference of the avoidance notch (121); the cavity wall of the accommodating cavity (114) is provided with a limiting groove (115); the limiting rib (122) is located in the limiting groove (115) to limit the movement of the nasal plug holder (12) in its own circumferential and axial directions.

8. A nasal oxygen cannula according to claim 6, characterized in that: The nasal plug holder (12) is provided with a positioning rib (123), and the cavity wall of the accommodating cavity (114) is provided with a positioning groove (116) for accommodating the positioning rib (123).

9. A nasal oxygen cannula according to claim 1, characterized in that: The nasal plug (1) comprises a main body (11) having a receiving cavity (114) and a nasal plug seat (12) arranged in the receiving cavity (114); the nasal plug seat (12) has a connecting section (124) located outside the receiving cavity (114); the nasal oxygen tube also comprises an air supply pipe (4), a hose clamp (5) and a hose sheath (6); one end of the air supply pipe (4) is threadedly connected to the connecting section (124); the other end of the air supply pipe (4) is threadedly connected to the hose clamp (5); the hose sheath (6) is sleeved on the outside of the hose clamp (5) and the two are snap-fitted.

10. A nasal oxygen cannula according to claim 9, characterized in that: A connecting tube (61) is provided inside the hose sheath (6), and a connecting cavity (611) is formed between the connecting tube (61) and the inner wall of the hose sheath (6) for an external pipeline to extend into. A clamping groove (51) is provided on one of the outer wall of the hose sleeve (5) and the inner wall of the connecting tube (61), and a clamping rib (612) is provided on the other of the two to be clamped with the clamping groove (51).

11. A nasal oxygen cannula according to claim 10, characterized in that: The hose ferrule (5) is provided with a stopper (52), and when the clamping rib (612) is clamped and matched with the clamping groove (51), the stopper (52) is stopper-matched with the end of the connecting pipe (61).

12. A nasal oxygen cannula according to claim 9, characterized in that: The hose sheath (6) is provided with an edge (62) extending outward, and the edge (62) is provided with a connecting hole (621).

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