Intubation tube fixing device

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a cannula fixing device, in clinical work, a tube body is used for wrapping a trachea cannula, and the specific work is that a first tube wall and a second tube wall are respectively and movably connected with a connecting piece, the first tube wall and the second tube wall rotate along the connecting piece, and the first tube wall and the second tube wall rotate along the connecting piece. The first tube wall and the second tube wall can be separated towards the two sides through the connecting piece, then the trachea cannula is arranged between the first tube wall and the second tube wall which are separated, then the first tube wall and the second tube wall are oppositely folded, the first tube wall and the second tube wall are fixed through the concave part and the convex part, and disassembly matching is achieved. Finally, the tube body is arranged in the through hole in the mounting piece, the tube body is wrapped in the through hole through the mounting piece, the tube body is prevented from being opened due to internal tension, the first through hole and the second through hole are matched with the first tube wall and the second tube wall respectively, the tube body is fixed through the mounting piece, and the tube body is prevented from falling into the mouth of a patient from the other end of the mounting piece.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a cannula fixing device. Background Art

[0002] Endotracheal intubation is a method of inserting a special endotracheal tube through the mouth and throat into the trachea or bronchus, providing optimal conditions for airway patency, ventilation and oxygen supply, and airway suction. It is an important measure to rescue patients with respiratory dysfunction.

[0003] The existing clinical method of fixing endotracheal tubes is to tie the trachea between the patient's mouth and a long gag. Since the patient's lip skin is relatively fragile, the lips will often touch and rub against the gag, causing the patient's lips to rupture and bleed. When fixing the gag, it is also necessary to tie the gag with tape to prevent it from slipping into the patient's mouth or falling out of the mouth. The contact of the tape with the patient's skin will cause damage to the patient's skin over time, and even cause an allergic reaction. When the trachea needs to be removed, the tape needs to be cut first, then the gag is untied, and finally the endotracheal tube is taken out. The removal process is very cumbersome, and each time the patient is intubated, the above process must be repeated, and it cannot be reused. It needs to be re-fixed and removed each time, which is very inefficient. Utility Model Content

[0004] The purpose of this utility model is: based on the inventor's own clinical practice and combined with actual clinical usage, in view of the defects of the existing technology, a new type of intubation fixing device is designed to solve the problem of low work efficiency during the above-mentioned operation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A cannula fixing device includes a first tube wall and a second tube wall, the first tube wall and the second tube wall are arranged opposite each other and movably connected to each other, the first tube wall and the second tube wall are combined into a cylindrical tube body with two ends open, the tube body includes a first part and a second part, the outer diameter of the first part is smaller than the outer diameter of the second part, and a step is provided at the connection between the first part and the second part;

[0007] A connecting piece is provided between the first tube wall and the second tube wall, and one side of the first tube wall and one side of the second tube wall are both connected to the connecting piece;

[0008] The other end of the first tube wall is fixedly provided with a concave portion, and the other end of the second tube wall is provided with a convex portion, and the convex portion is provided corresponding to the concave portion;

[0009] It also includes a mounting piece, which includes a main body and wearing parts arranged on both sides of the main body, the main body is provided with a through hole that cooperates with the outer wall of the tube body, and the through hole includes a first through hole and a second through hole, the diameter of the first through hole is the same as the outer diameter of the first tube wall, and the diameter of the second through hole is the same as the outer diameter of the second tube wall.

[0010] Furthermore, a first connecting portion is provided on the side where the first tube wall is connected to the connecting piece, and a second connecting portion is provided on the side where the second tube wall is connected to the connecting piece. The first tube wall and the second tube wall are rotatably connected to the connecting piece through the first connecting portion and the second connecting portion.

[0011] Furthermore, the first connecting portion is provided in plurality, and the plurality of the first connecting portions are arranged at equal intervals along the length direction of the first tube wall, and a first receiving groove is provided between the plurality of the first connecting portions;

[0012] There are multiple second connecting parts, and the multiple second connecting parts are arranged at equal distances along the length direction of the second tube wall, and a second receiving groove is formed between the multiple second connecting parts;

[0013] The first connecting portion and the second connecting portion are arranged alternately, that is, the first connecting portion is placed in the second accommodating groove, and the second connecting portion is placed in the first accommodating groove.

[0014] Furthermore, the first tube wall and the second tube wall are both arc-shaped, and two sides of the first tube wall and two sides of the second tube wall are connected to form a perfect circle.

[0015] Furthermore, the concave portion includes a accommodating cavity and a transition cavity, the convex portion includes a convex head and a flat block, the diameter of the accommodating cavity is larger than the diameter of the convex head, the height of the transition cavity is larger than the thickness of the flat block, and when the first tube wall and the second tube wall are connected, the convex head is placed in the accommodating cavity through the transition cavity, and the flat block is in contact with the transition cavity.

[0016] Furthermore, the convex portion and the concave portion are arranged at equal distances along the length direction of the first tube wall and the second tube wall.

[0017] Furthermore, the convex portion and the concave portion are arranged along the length direction of the first tube wall and the second tube wall.

[0018] Furthermore, it also includes a fixing block, which is arranged on the inner side of the first tube wall and the second tube wall, and a plurality of the fixing blocks are arranged at equal distances along the inner side of the first tube wall and the second tube wall.

[0019] Furthermore, the plurality of fixing blocks avoid the connection between the first tube wall and the second tube wall on both sides.

[0020] The plurality of fixing blocks are arranged in an array with equal distances along the length direction of the first tube wall and the second tube wall;

[0021] Or the plurality of fixing blocks are arranged in a rotation manner with equal distances along the length direction of the first tube wall and the second tube wall.

[0022] Furthermore, the wearing portion includes a first strap and a second strap and a third strap connected to the first strap, the first strap is arranged on both sides of the main body, and one end of the first strap is connected to the main body, the two ends of the second strap and the two ends of the third strap are respectively connected to the first strap on both sides of the main body, and the second strap and the third strap are arranged at an angle.

[0023] The beneficial effect of the present invention is that the intubation fixing device provided by the present invention is used to cover the endotracheal tube in clinical work. The specific work is reflected in that the first tube wall and the second tube wall are respectively movably connected to the connecting piece, and the first tube wall and the second tube wall rotate along the connecting piece. Through the connecting piece, the first tube wall and the second tube wall can be separated to both sides, and then the endotracheal tube is placed between the separated first tube wall and the second tube wall, and then the first tube wall and the second tube wall are relatively closed, and the first tube wall and the second tube wall are fixed by the recessed part and the convex part to achieve disassembly and fit, and finally the tube body is placed in the through hole on the mounting piece, and the mounting piece covers the tube body with the through hole to prevent the tube body from being opened due to internal tension, and the first through hole and the second through hole are respectively matched with the first tube wall and the second tube wall, and the mounting piece fixes the tube body to prevent the tube body from falling into the patient's mouth at the other end of the mounting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following will refer to the attached Figures 1 to 7 To describe the features, advantages and technical effects of exemplary embodiments of the present invention.

[0025] Figure 1 This is a schematic diagram of the overall structure of the tube body in the utility model;

[0026] Figure 2 for Figure 1 A partial enlarged schematic diagram;

[0027] Figure 3 for Figure 1 Schematic diagram of the tube after it is opened;

[0028] Figure 4 This is a schematic diagram of the front structure of the tube body in the present invention;

[0029] Figure 5 This is a schematic diagram of the back structure of the tube body in the present invention;

[0030] Figure 6 This is a schematic diagram of the overall structure of the mounting member in the present utility model;

[0031] Figure 7 for Figure 6 Section view of AA in the figure.

[0032] In the figure: 1. Tube body; 2. Mounting piece; 3. Fixing block;

[0033] 11. First pipe wall; 12. Second pipe wall; 13. Connector; 14. First portion; 15. Second portion; 16. Step platform;

[0034] 111, recess; 112, accommodating cavity; 113, transition portion; 114, first connecting portion; 115, first accommodating groove;

[0035] 121, convex portion; 122, convex head; 123, flat block; 124, second connecting portion; 125, second receiving groove;

[0036] 21. Main body; 22. Wearing portion; 23. Through hole; 24. Buckle portion;

[0037] 221, first restraint belt; 222, second restraint belt; 223, third restraint belt;

[0038] 231. First through hole; 232. Second through hole. DETAILED DESCRIPTION

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0040] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0041] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or multiple situations exist. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0043] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0044] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0045] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0046] The following is combined with Figures 1 to 7 The present invention is further described in detail, but is not intended to limit the present invention.

[0047] Example 1

[0048] A cannula fixing device includes a first tube wall 11 and a second tube wall 12. The first tube wall 11 and the second tube wall 12 are arranged opposite each other and are movably connected. The first tube wall 11 and the second tube wall 12 are combined to form a cylindrical tube body 1 with two ends open. The tube body 1 includes a first portion 14 and a second portion 15. The outer diameter of the first portion 14 is smaller than the outer diameter of the second portion 15. A step 16 is provided at the connection between the first portion 14 and the second portion 15.

[0049] A connecting piece 13 is provided between the first tube wall 11 and the second tube wall 12. One side of the first tube wall 11 and one side of the second tube wall 12 are both connected to the connecting piece 13.

[0050] The other end of the first tube wall 11 is fixedly provided with a concave portion 111, and the other end of the second tube wall 12 is provided with a convex portion 121, and the convex portion 121 is provided corresponding to the concave portion 111;

[0051] The device further includes a mounting member 2, which includes a main body 21 and wearing portions 22 provided on both sides of the main body 21. The main body 21 is provided with a through hole 23. The diameter of the through hole 23 is the same as the outer diameter of the first portion 14. The outer diameter of the second portion 15 is larger than the diameter of the through hole 23. The tube body 1 is inserted into the through hole 23.

[0052] Specifically, in clinical work, the tube body of the present invention is used to cover the endotracheal tube. The specific work is as follows: the first tube wall 11 and the second tube wall 12 are movably connected to the connecting piece 13 respectively, and the first tube wall 11 and the second tube wall 12 rotate along the connecting piece 13. Through the connecting piece 13, the first tube wall 11 and the second tube wall 12 can be separated to both sides, and then the endotracheal tube is placed between the separated first tube wall 11 and the second tube wall 12. The first tube wall 11 and the second tube wall 12 are relatively closed, and are fixed by the recessed portion 111 and the convex portion 121 to achieve disassembly and fit. Finally, the tube body 1 is placed in the through hole 23 on the mounting member 2. The mounting member 2 covers the tube body 1 in the through hole 23 to prevent the tube body 1 from being opened due to internal tension. The first through hole 231 and the second through hole 232 cooperate with the first tube wall 11 and the second tube wall 12 respectively. The mounting member 2 fixes the tube body 1 to prevent the tube body 1 from falling into the patient's mouth at the other end of the mounting member 2.

[0053] In some embodiments, a first connecting portion 114 is provided on the side where the first tube wall 11 is connected to the connecting member 13, and a second connecting portion 124 is provided on the side where the second tube wall 12 is connected to the connecting member 13. The first tube wall 11 and the second tube wall 12 are rotatably connected to the connecting member 13 through the first connecting portion 114 and the second connecting portion 124.

[0054] Specifically, the first connecting portion 114 is an extension of the first tube wall 11, and the second connecting portion 124 is an extension of the second tube wall 12. Therefore, the first connecting portion 114 and the second connecting portion 124 are fixedly connected to the first tube wall 11 and the second tube wall 12 respectively. The first connecting portion 114 and the first tube wall 11 are integrally formed, and the second connecting portion 124 and the second tube wall 12 are integrally formed. When the first tube wall 11 and the second tube wall 12 are rotated through the first connecting portion 114 and the second connecting portion 124, the overall rigidity of the first tube wall 11 and the second tube wall 12 can be ensured, and the first tube wall 11, the second tube wall 12 and the first connecting portion 114 and the second connecting portion 124 can be prevented from being broken. At the same time, the first connecting portion 114 and the second connecting portion 124 enable the first tube wall 11 and the second tube wall 12 to be connected to the same connecting member 13, thereby reducing the setting of multiple structures. The simpler the structure, the better the stability and the simpler the operation.

[0055] In some embodiments, a plurality of first connection parts 114 are provided, and the plurality of first connection parts 114 are arranged at equal distances along the length direction of the first tube wall 11, and a first accommodating groove 115 is provided between the plurality of first connection parts 114; a plurality of second connection parts 124 are provided, and the plurality of second connection parts 124 are arranged at equal distances along the length direction of the second tube wall 12, and a second accommodating groove 125 is provided between the plurality of second connection parts 124; the first connection parts 114 and the second connection parts 124 are arranged alternately, that is, the first connection part 114 is placed in the second accommodating groove 125, and the second connection part 124 is placed in the first accommodating groove 115.

[0056] Specifically, by providing the first accommodating groove 115 and the second accommodating groove 125, the first connecting part 114 and the second connecting part 124 are conveniently arranged crosswise to avoid air gaps and prevent the first connecting part 114 and the second connecting part 124 from interfering with each other. At the same time, when the first tube wall 11 and the second tube wall 12 are pried apart, the first connecting part 114 and the second connecting part 124 rotate in the first accommodating groove 115 and the second accommodating groove 125 respectively, so that the opening angle of the first tube wall 11 and the second tube wall 12 is increased, which facilitates the removal of the tracheal cannula from the tube body 1 or the installation of the tracheal cannula into the tube body 1.

[0057] In some embodiments, the first tube wall 11 and the second tube wall 12 are both arc-shaped, and two sides of the first tube wall 11 and two sides of the second tube wall 12 are connected to form a perfect circle.

[0058] Specifically, the first tube wall 11 and the second tube wall 12 are set to an arc shape in order to match the outer wall of the tracheal cannula, and are further fitted with the outer wall of the tracheal cannula, so that the first tube wall 11 and the second tube wall 12 can effectively fix the tracheal cannula, and the final synthesized perfect circular tube body 1 is completely matched with the tracheal cannula.

[0059] In some embodiments, the recess 111 includes a housing cavity 112 and a transition cavity 113, and the protrusion 121 includes a convex head 122 and a flat block 123. The diameter of the housing cavity 112 is greater than the diameter of the convex head 122, and the height of the transition cavity 113 is greater than the thickness of the flat block 123. When the first tube wall 11 and the second tube wall 12 are connected, the convex head 122 is placed in the housing cavity 112 through the transition cavity 113, and the flat block 123 is in contact with the transition cavity 113.

[0060] Specifically, during operation, the first tube wall 11 and the second tube wall 12 are first separated, and then the endotracheal tube is placed between the first tube wall 11 and the second tube wall 12, and the first tube wall 11 and the second tube wall 12 are closed, and the convex head 122 of the convex portion 121 abuts against the end of the first tube body 1, and the convex head 122 is squeezed into the accommodating cavity 112 with a little force, and the function of the straight block 123 is to connect the convex head 122 and the second tube body 1, press the convex head 122 into the accommodating cavity 112, and position and limit the convex head 122 to fix the second tube wall 12, making the connection more firm, preventing the first tube wall 11 and the second tube wall 12 from separating, causing the endotracheal tube to detach from the tube body 1, and the tube body 1 loses its fixation on the endotracheal tube.

[0061] In some embodiments, the convex portion 121 and the concave portion 111 are disposed along the length direction of the first tube wall 11 and the second tube wall 12 .

[0062] Specifically, as shown in the figure, the convex portion 121 and the concave portion 111 are arranged as a whole on the first tube wall 11 and the second tube wall 12. Setting the convex portion 121 as a whole can improve the structural strength of the convex portion 121, and prevent the convex portion 121 from breaking when the first tube wall 11 and the second tube wall 12 are separated and combined, thereby further improving the service life of the tube body 1 and allowing it to be reused many times.

[0063] In some embodiments, a fixing block 3 is further included. The fixing block 3 is arranged on the inner side of the first tube wall 11 and the second tube wall 12 . A plurality of fixing blocks 3 are arranged at equal distances along the inner sides of the first tube wall 11 and the second tube wall 12 .

[0064] Specifically, the inner wall of the first tube wall 11 and the inner wall of the second tube wall 12 are both connected to the outer wall of the endotracheal tube, and the smooth surface reduces the friction and cannot fix the endotracheal tube well. Therefore, a fixing block 3 is provided. When the endotracheal tube is placed between the first tube wall 11 and the second tube wall 12, the first tube wall 11 and the second tube wall 12 are closed. Since the endotracheal tube is a hose, the fixing block 3 squeezes the endotracheal tube, causing a small deformation of the endotracheal tube. This deformation will not have any effect on the patient. By causing the endotracheal tube to deform, the endotracheal tube is further fixed to prevent the position of the endotracheal tube from changing.

[0065] In some embodiments, the plurality of fixing blocks 3 avoid the connection between the first tube wall 11 and the second tube wall 12 .

[0066] Specifically, when the fixing block 3 squeezes the endotracheal tube, the endotracheal tube will also return a certain pressure to the fixing block 3, and the fixing block 3 is arranged to avoid the connection between the first tube wall 11 and the second tube wall 12, so that the connection between the first tube wall 11 and the second tube wall 12 is at a certain distance from the outer wall of the endotracheal tube, thereby preventing the pressure returned by the endotracheal tube from stretching the connection between the first tube wall 11 and the second tube wall 12, and finally stretching the first tube wall 11 and the second tube wall 12 apart. In addition, the space between the connection and the outer wall of the endotracheal tube can also accommodate the deformed part of the endotracheal tube, which is used to buffer the stress generated by the deformation of the endotracheal tube, thereby improving the integrity of the tube body 1 and improving the service life of the tube body 1.

[0067] In this embodiment, two groups of fixing blocks 3 are provided, each group is provided with a fourth fixing block 3, and the two groups of fixing blocks 3 are respectively placed inside the tube body 1 near the opening.

[0068] In this embodiment, the wearing portion 22 includes a first strap 221 and a second strap 222 and a third strap 223 connected to the first strap 221. The first strap 221 is arranged on both sides of the main body 21, and one end of the first strap 221 is connected to the main body 21. The two ends of the second strap 222 and the two ends of the third strap 223 are respectively connected to the first strap 221 on both sides of the main body 21, and the second strap 222 and the third strap 223 are arranged at an angle.

[0069] A buckle portion 24 is provided between the wearing portion 22 and the main body 21 . The buckle portion 24 is fixedly connected to the main body 21 , and one end of the wearing portion 22 is connected to the buckle portion 24 . The wearing portion 22 is connected to the main body 21 via the buckle portion 24 .

[0070] Specifically, in this embodiment, the main body 21 is a rubber structure. After the patient wears the fixing device, the rubber structure will not cause damage to the patient's lips and face, thereby ensuring the patient's comfort. During work, the second strap 222 is placed on the upper side of the patient's ear, and the third strap 223 is placed on the lower side of the patient's ear, and the second strap 222 and the third strap 223 are both wrapped around the back of the patient's head. Finally, the two ends of the second strap 222 and the two ends of the third strap 223 are connected to the first strap 221, and the main body 21 is fixed by the first strap 221, the second strap 222 and the third strap 223 to prevent the main body 21 from falling off or shifting.

[0071] like Figure 7 As shown, the tube body 1 is disposed in the through hole 23 on the mounting member 2 , with one side of the second portion 15 facing the patient.

[0072] In this embodiment, the first strap 221, the second strap 222 and the third strap 223 are all elastic straps, which can adapt to more patients. The first strap 221, the second strap 222 and the third strap 223 enable the device of the present application to be reused, and it is more convenient to wear, and no tedious operations are required, which brings greater convenience to medical staff. At the same time, the fixing effect is better than that of the previous fixation with tape.

[0073] When in use, first split the tube body 1, then place the endotracheal tube in the tube body 1, close the tube body 1, pass the endotracheal tube through the mounting piece 2, and then place the closed tube body 1 in the through hole 23. The mounting piece 2 covers the tube body 1 and fixes the tube body 1 through the mounting piece 2 to prevent the tube body 1 from opening due to the tension of the endotracheal tube. When disassembly is required, first take the tube body 1 out of the mounting piece 2, split the tube body 1 to separate the tube body 1 from the fixation on the endotracheal tube, pull out the endotracheal tube, and finally remove the mounting piece 2. For convenience, the endotracheal tube, tube body 1 and mounting piece 2 can be taken out together and then disassembled. The specific implementation depends on the actual situation.

[0074] Example 2

[0075] In some embodiments, the convex portion 121 and the concave portion 111 are equidistantly spaced along the length direction of the first tube wall 11 and the second tube wall 12 .

[0076] Specifically, as shown in the figure, the convex portions 121 are arranged at equal intervals at the end of the second tube wall 12, and the concave portions 111 corresponding to the convex portions 121 are also arranged at equal intervals at the end of the first tube wall 11, and the multiple concave portions 111 correspond to the multiple convex portions 121 one by one. By providing the multiple concave portions 111 and the convex portions 121, the first tube wall 11 and the second tube wall 12 are more firmly connected from top to bottom, preventing the first tube wall 11 and the second tube wall 12 from separating.

[0077] In this embodiment, the convex portions 121 are arranged at equal distances. Even if some of the convex portions 121 are damaged, the tube body 1 can still be used, as long as the damage is not too extensive. For example, the convex portions 121 at both ends and in the middle of the second tube wall 12 are particularly important. As long as the convex portions 121 in these locations are intact, the tube body 1 can still be used normally.

[0078] The other structures are the same as those in the first embodiment and will not be elaborated in detail in this embodiment.

[0079] Example 3

[0080] The plurality of fixing blocks 3 are arranged in an array at equal distances along the length direction of the first tube wall 11 and the second tube wall 12 .

[0081] Specifically, by providing multiple groups of fixing blocks 3, a better fixing effect can be achieved for the endotracheal tube (not shown in the figure).

[0082] The other structures are the same as those in the first embodiment and will not be elaborated in detail in this embodiment.

[0083] Example 4

[0084] The plurality of fixing blocks 3 are arranged in a rotation manner with equal distances along the length direction of the first tube wall 11 and the second tube wall 12 (not shown in the figure).

[0085] Specifically, by providing multiple groups of fixing blocks, a better fixing effect of the tracheal tube can be achieved.

[0086] The other structures are the same as those in the first embodiment and will not be elaborated in detail in this embodiment.

[0087] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0088] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments described above. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present invention fall within the scope of protection of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation on the present invention.

Claims

1. A cannula fixing device, characterized in that: The invention comprises a first tube wall and a second tube wall, the first tube wall and the second tube wall are arranged opposite to each other and are movably connected to each other, the first tube wall and the second tube wall are combined into a cylindrical tube body with two ends open, the tube body comprises a first part and a second part, the outer diameter of the first part is smaller than the outer diameter of the second part, and a step is provided at the connection between the first part and the second part; A connecting piece is provided between the first tube wall and the second tube wall, and one side of the first tube wall and one side of the second tube wall are both connected to the connecting piece; The other end of the first tube wall is fixedly provided with a concave portion, and the other end of the second tube wall is provided with a convex portion, and the convex portion is provided corresponding to the concave portion; It also includes a mounting piece, which includes a main body and wearing parts arranged on both sides of the main body, the main body is provided with a through hole that cooperates with the outer wall of the tube body, and the through hole includes a first through hole and a second through hole, the diameter of the first through hole is the same as the outer diameter of the first tube wall, and the diameter of the second through hole is the same as the outer diameter of the second tube wall.

2. The cannula fixing device according to claim 1, characterized in that: A first connecting portion is provided on one side of the first tube wall connected to the connecting piece, and a second connecting portion is provided on one side of the second tube wall connected to the connecting piece. The first tube wall and the second tube wall are rotatably connected to the connecting piece through the first connecting portion and the second connecting portion.

3. The cannula fixing device according to claim 2, characterized in that: There are multiple first connecting parts, and the multiple first connecting parts are arranged at equal distances along the length direction of the first tube wall, and there are first accommodating grooves between the multiple first connecting parts; There are multiple second connecting parts, and the multiple second connecting parts are arranged at equal distances along the length direction of the second tube wall, and a second receiving groove is formed between the multiple second connecting parts; The first connecting portion and the second connecting portion are arranged alternately, that is, the first connecting portion is placed in the second accommodating groove, and the second connecting portion is placed in the first accommodating groove.

4. The cannula fixing device according to claim 3, characterized in that: The first tube wall and the second tube wall are both arc-shaped, and two sides of the first tube wall and two sides of the second tube wall are connected to form a perfect circle.

5. The cannula fixing device according to claim 4, characterized in that: The concave portion includes a accommodating cavity and a transition cavity, and the convex portion includes a convex head and a flat block. The diameter of the accommodating cavity is greater than the diameter of the convex head, and the height of the transition cavity is greater than the thickness of the flat block. When the first tube wall and the second tube wall are connected, the convex head is placed in the accommodating cavity through the transition cavity, and the flat block is in contact with the transition cavity.

6. The cannula fixing device according to claim 5, characterized in that: The convex portion and the concave portion are arranged at equal distances along the length direction of the first tube wall and the second tube wall.

7. The cannula fixing device according to claim 5, characterized in that: The convex portion and the concave portion are arranged along the length direction of the first tube wall and the second tube wall.

8. The cannula fixing device according to claim 7, characterized in that: It also includes a fixing block, which is arranged on the inner side of the first tube wall and the second tube wall, and a plurality of the fixing blocks are arranged at equal distances along the inner side of the first tube wall and the second tube wall.

9. The cannula fixing device according to claim 8, characterized in that: The plurality of fixing blocks avoid the connection between the first tube wall and the second tube wall; The plurality of fixing blocks are arranged in an array with equal distances along the length direction of the first tube wall and the second tube wall; Or the plurality of fixing blocks are arranged in a rotation manner with equal distances along the length direction of the first tube wall and the second tube wall.

10. The cannula fixing device according to claim 1, characterized in that: The wearing portion includes a first strap and a second strap and a third strap connected to the first strap. The first strap is arranged on both sides of the main body, and one end of the first strap is connected to the main body. The two ends of the second strap and the two ends of the third strap are respectively connected to the first straps on both sides of the main body, and the second strap and the third strap are arranged at an angle.

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