Air pipe assembly with closed structure

Abstract

The invention discloses an air pipe assembly with a closed structure, and belongs to the technical field of medical instruments, the air pipe assembly comprises a pipe body, an air bag and an inflation assembly are arranged on the pipe body, a steel wire sleeve is arranged in the pipe body in a sleeved mode, the air pipe assembly further comprises a plug, a patch and a transmission part, the plug is installed on a connector of the pipe body, and the transmission part is arranged in the pipe body in a penetrating mode and connected with the plug and the air bag; and the patch is arranged close to the plug and is used for plugging a gap between the tube body and the throat or mouth of the patient. According to the trachea assembly with the closed structure, the inner cavity of the tube body can be blocked through the plug, so that when medical staff assess the autonomous respiration function of a patient, the tube body does not need to be blocked with the help of cotton swabs, adhesive tape and the like, and the leakproofness of the blocked tube body is guaranteed; meanwhile, the air bag can be collected through the plug and the transmission piece, the situation that the air bag is loosened at will to affect autonomous respiration of the patient is avoided, the patient can cough out sputum easily, and the accuracy of medical staff for evaluating whether the autonomous respiration function of the patient is good or not is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a tracheal component with a closed structure. Background Art

[0002] Endotracheal intubation is an effective and reliable method for establishing an artificial airway, which can provide optimal conditions for relieving airway obstruction, ensuring airway patency, clearing airway secretions, preventing aspiration, and performing assisted or controlled ventilation. Currently, in order to evaluate whether the patient's spontaneous breathing function has recovered well and whether the airway protection ability is sufficient, medical staff will use cotton swabs, adhesive tapes, etc. to block the intubation. During the tube blocking period, medical staff will closely observe indicators such as the patient's vital signs, respiratory status, and blood oxygen saturation. If the patient can maintain good respiratory function during the tube blocking period, with stable breathing, no manifestations of hypoxia such as dyspnea and cyanosis, the blood oxygen saturation can be stabilized within the normal range, and the patient can effectively cough and expectorate sputum, it indicates that the patient has the conditions for extubation. If the patient shows symptoms such as rapid and labored breathing, a significant decrease in blood oxygen saturation, or inability to effectively expectorate sputum during the tube blocking process, medical staff need to promptly stop the tube blocking and reopen the trachea to continue observing and treating the patient.

[0003] When medical staff evaluate whether the patient's spontaneous breathing function has recovered well, they deflate the balloon and then block the trachea. At this time, there is a gap between the outer walls of the balloon and the trachea and the patient's respiratory tract, allowing the patient to attempt to breathe spontaneously through the glottis and upper respiratory tract without breathing through the trachea. However, since the balloon is in a relaxed state after deflation, the balloon is prone to occupying the gap space, thereby hindering the passage of gas through the patient's glottis and upper respiratory tract, which not only easily affects the patient's spontaneous breathing, easily causes respiratory fatigue, but also makes it difficult for the patient to effectively expectorate sputum, making it difficult for medical staff to correctly evaluate the patient's spontaneous breathing function. In addition, the traditional tube blocking method (i.e., using cotton swabs, adhesive tapes, etc. to block the trachea) relies on manual operation, and there are situations of insecure blocking and air leakage (especially when the patient coughs), making it difficult to effectively ensure the accuracy of the evaluation of the patient's ability to breathe spontaneously.

[0004] Based on this, there is an urgent need to design a tracheal component that is simple and convenient for tube blocking operation and can provide good spontaneous breathing conditions for patients after tube blocking. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects existing in the prior art and provide a tracheal component with a closed structure that is simple and convenient for tube blocking operation and can provide good spontaneous breathing conditions for patients after tube blocking.

[0006] To achieve the above object, the present invention provides a tracheal assembly with a closed structure, including a tube body, an airbag is arranged on the tube body, and an inflation assembly communicated with the airbag, a steel wire sleeve is sleeved inside the tube body, and further includes a plug, a patch and a transmission member. The plug is detachably installed on the interface of the tube body, and the plug is used to block the inner cavity of the tube body. The transmission member passes through the tube body and is connected with the plug and the airbag. The patch is arranged close to the plug and is used to block the gap between the tube body and the patient's larynx or mouth.

[0007] Preferably, a through hole is opened in the tube body along its extending direction, and the two end orifices of the through hole are respectively arranged close to the airbag and the plug. The transmission member is a pull rope, and the transmission member passes through the through hole.

[0008] Preferably, the number of the through holes is multiple, and the multiple through holes are evenly and spacedly arranged along the extending direction of the tube body. The number of the transmission members is the same as that of the through holes and respectively pass through the through holes in a one-to-one correspondence.

[0009] Preferably, the transmission member is an inner tube, and the transmission member is rotatably installed inside the tube body. A through hole is opened in the tube wall of the tube body corresponding to the position of the airbag. One end of the transmission member far from the plug is connected with the airbag through a pull bar passing through the through hole.

[0010] Preferably, a plurality of the through holes are evenly and spacedly opened in the tube body along its circumferential direction, and a pull bar connected with the transmission member and the airbag is arranged in any one of the through holes.

[0011] Preferably, the transmission member and the steel wire sleeve are of an integral structure.

[0012] Preferably, a slot for the tube body to extend into is opened on the plug, a protrusion for plugging and matching with the tube body is formed in the slot, a gasket is arranged at the bottom of the slot, and the gasket is sleeved on the protrusion; an anti-slip portion is formed on the outer wall of the plug.

[0013] Preferably, binding ropes are arranged at both ends of the patch.

[0014] Beneficial effects: 1. During the use of the tracheal assembly with a closed structure of the present invention, through the plug, medical staff do not need to use cotton swabs, adhesive tapes, etc. to block the tube body, which not only improves the tightness and reliability of the tube body during tube blocking, but also can achieve a quick response when the patient needs to reopen the tube body due to poor breathing, and effectively avoids the cotton swabs (fibers or flocs), adhesive tapes (residues), etc. from falling into the tube body to pollute or block the respiratory tract, and improves the accuracy of medical staff's assessment of the patient's spontaneous breathing function.

[0015] 2. During the use of the tracheal assembly with a closed structure of the present invention, medical staff can operate the plug to drive the transmission member to make the loose airbag closely adhere to and contract onto the tube body, so that not only can the airbag be prevented from obstructing the gas from passing through the glottis and upper respiratory tract of the patient, improving the patency during the patient's spontaneous breathing, but also the patient's respiratory fatigue can be alleviated, the discomfort caused by the contact friction between the airbag and the tracheal mucosa of the patient can be reduced, and it is beneficial for the patient to cough up sputum normally, providing good conditions for the patient's spontaneous breathing and reliable use.

[0016] 3. In the tracheal assembly with a closed structure of the present invention, the gap between the tube body and the patient's larynx or mouth can be blocked by the patch, so that not only the installation stability of the tube body joint can be ensured, preventing the tube body joint from moving randomly and causing discomfort to the patient, but also it is beneficial for the subsequent disassembly and assembly of the plug. Moreover, compared with the traditional method of fixing the tube body joint with medical tape, etc., the use of the patch in the present invention can avoid the skin irritation or damage caused by repeated pasting and replacement of the tape, especially suitable for long-term intubation patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 is a schematic structural diagram of a tracheal assembly with a closed structure according to an embodiment of the present invention; Figure 2 is Figure 1 a cross-sectional view taken along line A-A in Figure 3 is Figure 1 a cross-sectional view taken along line B-B in Figure 4 is a schematic structural diagram of the plug in a tracheal assembly with a closed structure according to an embodiment of the present invention.

[0019] In the figure: 1 - tube body; 2 - airbag; 3 - inflation assembly; 4 - wire sleeve; 5 - plug; 6 - patch; 7 - transmission member; 8 - through hole; 9 - through hole; 10 - pull bar; 11 - slot; 12 - protrusion; 13 - washer; 14 - anti-slip part; 15 - tying rope. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. The components of the embodiments of this application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application that is claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts fall within the scope of protection of this application.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] In the description of this application, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing this 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 cannot be understood as a limitation of this application. In addition, in the description of this application, if terms such as "first" and "second" are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0024] In addition, in the description of this application, if terms such as "horizontal" and "vertical" are used, it does not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0025] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", and "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. 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.

[0026] Embodiment 1: The present invention provides a tracheal assembly with a closed structure.

[0027] In an embodiment of the present invention, the tracheal assembly with a closed structure includes a tube body 1, an airbag 2 disposed on the tube body 1, and an inflation assembly 3 communicating with the airbag 2. A steel wire sleeve 4 is sleeved inside the tube body 1. The tracheal assembly further includes a plug 5, a patch 6, and a transmission member 7. The plug 5 is detachably installed on the interface of the tube body 1 and is used to block the inner cavity of the tube body 1. The transmission member 7 passes through the tube body 1 and is connected to the plug 5 and the airbag 2. The patch 6 is disposed near the plug 5 and is used to block the gap between the tube body 1 and the patient's larynx or mouth.

[0028] Working principle: The tracheal assembly with a closed structure of the present invention can block the inner cavity of the tube body 1 through the plug 5, so that when medical staff evaluate the patient's spontaneous breathing function, there is no need to block the tube body 1 with cotton swabs, adhesive tapes, etc., ensuring the tightness after the tube body 1 is blocked; at the same time, the airbag 2 can be constricted through the plug 5 and the transmission member 7, preventing the airbag 2 from loosening randomly and affecting the patient's spontaneous breathing. This is not only beneficial for the patient to cough up sputum but also improves the accuracy of medical staff in evaluating whether the patient's spontaneous breathing function is good.

[0029] Specifically, as Figures 1 to 4 shown, in the tracheal assembly with a closed structure of the present invention, since the tube body 1 is provided with an inflation assembly 3 communicating with the airbag 2, the inflation assembly 3 can adopt a one-way valve in the prior art, and the inflation assembly 3 can be connected to the airbag 2 through an air delivery tube. Thus, gas can be injected into the airbag 2 unidirectionally and the pressure can be locked, that is, the airbag 2 is inflated and expanded through the inflation assembly 3 to closely fit the outer wall of the airbag 2 with the inner wall of the patient's trachea. This can not only prevent airway leakage, aspiration, etc., but also help the tube body 1 to always remain in the preset position, ensuring the continuous opening and effective ventilation of the patient's respiratory tract; at the same time, when it is necessary to evaluate whether the patient's spontaneous breathing function has recovered well, medical staff release the one-way seal of the inflation assembly 3 on the airbag 2 and simultaneously draw out the gas in the airbag 2 in the opposite direction, thereby completing the deflation operation of the airbag 2. At this time, the medical staff block the tube body 1, and the patient inhales and exhales through the gap between the airbag 2 and the outer wall of the trachea and the patient's respiratory tract, enabling medical staff to evaluate whether the patient's spontaneous breathing function has recovered well. In addition, by sleeving the steel wire sleeve 4 inside the tube body 1, the structural strength of the tube body 1 can be enhanced, preventing the tube body 1 from being deformed due to extrusion during the tube blocking operation or the patient's coughing, ensuring the smoothness of the air flow through the tube body 1.

[0030] Furthermore, during the use of the tracheal assembly with a closed structure according to the present invention, since a plug 5 is detachably mounted on the interface of the tube body 1 (the tube body 1 can be connected to an external gas supply device such as a ventilator through the interface), the detachable mounting method of the plug 5 and the tube body 1 can be bolt connection or the like. This not only facilitates the medical staff to disassemble and assemble the plug 5, but also enables the medical staff not to use cotton swabs, adhesive tapes, etc. to block the tube body 1. This not only improves the tightness and reliability of the tube body 1 when it is blocked, but also enables a quick response when the patient needs to reopen the tube body 1 due to breathing difficulties. Moreover, it effectively avoids the shedding of cotton swabs (fibers or flocs), adhesive tapes (residues), etc. into the tube body 1, which may contaminate or block the respiratory tract, and improves the accuracy of the medical staff's assessment of the patient's spontaneous breathing function.

[0031] It can be understood that when the medical staff needs to evaluate whether the patient's spontaneous breathing function has recovered well, after the airbag 2 has completed the deflation operation, if the plug 5 and the tube body 1 are installed by screw connection, at this time, the medical staff can screw the plug 5 onto the interface of the tube body 1 to block the tube body 1. Since the transmission member 7 is disposed inside the tube body 1 and is connected to the plug 5 and the airbag 2, at this time, under the rotational action of the plug 5, the transmission member 7 can pull the relaxed airbag 2 to rotate relative to the tube body 1 and tightly contract against the outer wall of the tube body 1. Thus, it can not only prevent the airbag 2 from obstructing the gas from passing through the patient's glottis and upper respiratory tract, improving the patency during the patient's spontaneous breathing, but also relieve the patient's breathing fatigue, reduce the discomfort caused by the contact friction between the airbag 2 and the patient's tracheal mucosa, and is conducive to the patient to cough up sputum normally, providing good conditions for the patient's spontaneous breathing and being reliable in use.

[0032] In addition, in the tracheal assembly with a closed structure according to the present invention, since a patch 6 is disposed on the outer wall of the tube body 1 near the plug 5, after the medical staff has completed intubation, at this time, the gap between the tube body 1 and the patient's larynx or mouth can be blocked through the patch 6. The patch 6 can be made of a flexible material such as medical-grade silicone to adaptively fit the patient's larynx or mouth. Thus, it can not only ensure the installation stability of the interface of the tube body 1, prevent the interface of the tube body 1 from moving randomly and causing discomfort to the patient, but also facilitate the subsequent disassembly and assembly of the plug 5. Moreover, compared with the traditional method of fixing the interface of the tube body 1 with medical tapes, etc., the present invention uses the patch 6 to avoid the skin irritation or damage caused by repeated pasting and replacement of the tape, especially suitable for long-term intubated patients.

[0033] It is worth noting that after the evaluation is completed or when the patient needs to use the tube body 1 for breathing again, the medical staff can remove the plug 5 so that the transmission member 7 loosens the restraint on the airbag 2, and re-injects gas into the airbag 2 through the inflation component 3 to limit the tube body 1 and ensure the continuous opening and effective ventilation of the patient's respiratory tract. In addition, the removed plug 5 is hung to the outside of the joint of the tube body 1 through the transmission member 7, and the medical staff can use medical tape to fix the plug 5 to the patch 6 to prevent it from shaking at will and affecting the expansion of the airbag 2. It should be noted that the joint of the tube body 1 can be connected to the pipeline interface of external equipment such as a ventilator by a plug-in fitting method. At this time, the transmission member 7 can be wound around the outer wall of the joint of the tube body 1 to increase the friction with the pipeline interface, ensure the airtightness of the connection, and prevent gas leakage.

[0034] In one embodiment, a through hole 8 is opened in the tube body 1 along its extension direction, and the two end openings of the through hole 8 are respectively arranged close to the airbag 2 and the plug 5, and the transmission member 7 is a pull rope, and the transmission member 7 is passed through the through hole 8. Specifically, Figure 1 and Figure 2 As shown, by opening a through hole 8 in the tube body 1 along its extension direction, a closed wiring channel can be provided for the transmission member 7, thereby preventing the transmission member 7 from contacting the inner cavity of the tube body 1 and interfering with ventilation or increasing the risk of contamination. Furthermore, since the openings at both ends of the through hole 8 are respectively arranged close to the airbag 2 and the plug 5, the transmission member 7 can be prevented from being excessively exposed to the outside of the tube body 1 and causing discomfort to the patient, and the relaxed airbag 2 can be evenly attached to the outer wall of the tube body 1 under the drive of the plug 5, thereby eliminating the pressure on the patient's trachea or respiratory tract caused by the local wrinkles of the airbag 2, and the structural design is simple and reasonable.

[0035] In one embodiment, there are multiple through holes 8, which are evenly and spaced apart along the extension direction of the tube body 1, and the number of transmission members 7 is consistent with the number of through holes 8 and are respectively and one-to-one correspondingly penetrated in the through holes 8. Specifically, Figure 1 and Figure 2 As shown, the airbag 2 is driven to be contracted by multiple transmission parts 7, so that the force on the airbag 2 is more balanced, and the deflection of the airbag 2 or the twisting of the tube body 1 caused by single-point traction is effectively avoided; at the same time, the airbag 2 is driven to move by multiple transmission parts 7, which can ensure that the contraction function of the plug 5 on the airbag 2 can be maintained when a certain pull rope fails, which significantly improves the reliability of use.

[0036] In one embodiment, the transmission member 7 is an inner tube, and the transmission member 7 is rotatably installed in the tube body 1. A through hole 9 is provided on the tube wall of the tube body 1 at a position corresponding to the airbag 2. The end of the transmission member 7 away from the plug 5 is connected to the airbag 2 through a tie rod 10 passing through the through hole 9. Specifically, Figure 1 and Figure 3As shown, since the transmission member 7 is rotatably installed in the tube body 1, when the medical staff screws the plug 5, the plug 5 drives the transmission member 7 to rotate in the tube body 1. Since the end of the transmission member 7 away from the plug 5 is connected to the airbag 2 through the pull rod 10 penetrating the through hole 9, the transmission member 7 can pull the loose airbag 2 to be tightened and attached to the outer wall of the tube body 1 through the pull rod 10, thereby improving the patency and comfort of the patient's spontaneous breathing, and the structural design is ingenious and reasonable.

[0037] In one embodiment, if Figure 1 and Figure 3 As shown, the tube body 1 is provided with a plurality of through holes 9 evenly and at intervals along its circumference, and a tie rod 10 connected to the transmission member 7 and the airbag 2 is inserted into any of the through holes 9. Specifically, the tie rods 10 are evenly arranged along the circumference of the tube body 1 so that the force on the airbag 2 is more balanced when it is contracted, which can not only effectively avoid the distortion of the airbag 2 or the displacement of the tube body 1 caused by unilateral contraction, but also greatly improve the contraction efficiency of the airbag 2, and is convenient to use.

[0038] In one embodiment, if Figure 3 As shown, the transmission member 7 and the steel wire sleeve 4 are an integrated structure. Specifically, when the transmission member 7 is an inner tube, the transmission member 7 and the steel wire sleeve 4 are made into an integrated structure (injection molding process can be used), so that the assembly step between the transmission member 7 and the steel wire sleeve 4 can be omitted, the assembly gap is avoided, the assembly error is eliminated, and the manufacturing is easy.

[0039] In one embodiment, the plug 5 is provided with a slot 11 for the pipe body 1 to extend into, a protrusion 12 for plugging and mating with the pipe body 1 is formed in the slot 11, a gasket 13 is provided at the bottom of the slot 11, and the gasket 13 is sleeved on the protrusion 12; an anti-slip portion 14 is formed on the outer wall of the plug 5. Specifically, Figure 1 and Figure 4 As shown, when the plug 5 is connected to the tube body 1, the protrusion 12 in the slot 11 extends into the inner wall of the tube body 1, thereby ensuring the axial alignment of the plug 5 and the tube body 1, and avoiding sealing failure caused by the oblique installation of the plug 5; at the same time, after the plug 5 is firmly connected to the tube body 1 (threaded connection), the end of the tube body 1 is tightly abutted against the gasket 13, and the gasket 13 can be elastically deformed to fill the matching gap between the plug 5 and the tube body 1 and achieve reliable airtight sealing, thereby effectively preventing gas leakage, improving the airtightness of the tube body 1 when the plug 5 is plugged, and ensuring the accuracy of the medical staff's evaluation results of the patient's autonomous breathing function. In addition, the anti-slip portion 14 formed on the outer wall of the plug 5 makes it easy for medical staff to rotate and disassemble the plug 5, without the need to use additional disassembly and assembly auxiliary tools, which is simpler and more convenient to use.

[0040] In one embodiment, if Figure 1As shown, tying ropes 15 are provided at both ends of the patch 6. Understandably, the tying ropes 15 can be adjusted and fixed around the patient's neck or head, so that the patch 6 is closely attached to the patient's skin, improving the installation stability of the patch 6; at the same time, the tying ropes 15 can be elastic ropes in the prior art, and their elastic properties can avoid compressive injuries to the patient while ensuring the fixing force, improving the patient's comfort.

[0041] The above are only the preferred embodiments of the present application and are not intended 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 protection scope of the present application.

Claims

1. A tracheal component with a closed structure, comprising a tube body (1), an airbag (2) is arranged on the tube body (1), and an inflation component (3) communicated with the airbag (2), a wire sleeve (4) is sleeved inside the tube body (1), and it is characterized in that, It further includes a plug (5), a patch (6) and a transmission member (7). The plug (5) is detachably mounted on the interface of the tube body (1). The plug (5) is used to block the inner cavity of the tube body (1). The transmission member (7) passes through the tube body (1) and is connected to the plug (5) and the airbag (2). The patch (6) is arranged close to the plug (5) and is used to block the gap between the tube body (1) and the patient's larynx or mouth.

2. The tracheal assembly with a closed structure according to claim 1, wherein A through hole (8) is formed in the tube body (1) along its extending direction. The two end orifices of the through hole (8) are respectively arranged close to the airbag (2) and the plug (5). The transmission member (7) is a drawstring, and the transmission member (7) passes through the through hole (8).

3. The tracheal assembly with a closed structure according to claim 2, characterized in that, The number of the through holes (8) is multiple. The multiple through holes (8) are evenly and spacedly arranged along the extending direction of the tube body (1). The number of the transmission members (7) is the same as that of the through holes (8) and the transmission members (7) respectively pass through the through holes (8) in a one-to-one correspondence.

4. The tracheal assembly with a closed structure according to claim 1, characterized in that, The transmission member (7) is an inner tube. The transmission member (7) is rotatably mounted in the tube body (1). A through hole (9) is formed in the tube wall of the tube body (1) corresponding to the position of the airbag (2). One end of the transmission member (7) away from the plug (5) is connected to the airbag (2) through a draw bar (10) passing through the through hole (9).

5. The tracheal assembly with a closed structure according to claim 4, characterized in that, A plurality of the through holes (9) are evenly and spacedly formed in the tube body (1) along its circumferential direction. A draw bar (10) connecting the transmission member (7) and the airbag (2) passes through any one of the through holes (9).

6. The tracheal assembly with a closed structure according to claim 5, characterized in that, The transmission member (7) and the wire sleeve (4) are of an integral structure.

7. The tracheal component with a closed structure according to any one of claims 1-6, characterized in that A slot (11) for the tube body (1) to extend into is formed in the plug (5). A protrusion (12) for plugging and mating with the tube body (1) is formed in the slot (11). A washer (13) is arranged at the bottom of the slot (11), and the washer (13) is sleeved on the protrusion (12). An anti-slip portion (14) is formed on the outer wall of the plug (5).

8. The tracheal tube assembly with a closed structure according to any one of claims 1-6, characterized in that Binding ropes (15) are arranged at both ends of the patch (6).

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