Medical tube occlusion device
By designing an adjustable adapter and a one-way valve structure, the problem of adapting the tube-blocking device to different tracheal tube sleeves has been solved, achieving flexible adaptation and patient communication functions, and improving the device's versatility and patient communication capabilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
- Filing Date
- 2025-04-14
- Publication Date
- 2026-06-23
AI Technical Summary
Existing endotracheal tube blocking devices cannot be flexibly adjusted to accommodate different models of endotracheal tubes, increasing the complexity of the work for medical staff.
A medical tube-blocking device was designed, which enables the adjustability of the adapter through a knob component and a clamp structure to adapt to different models of endotracheal tube sleeves, and is equipped with a one-way valve and a vent hole to enable voice communication.
It improves the versatility and practicality of the tube-blocking device, simplifies the installation process, enhances patients' communication skills, and reduces unnecessary trouble.
Smart Images

Figure CN224387888U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of medical devices, and more particularly to a medical tube-clogging device. Background Technology
[0002] To maintain or improve ventilation in critically ill patients, a common clinical practice involves percutaneously opening the trachea in the neck and inserting a tracheostomy tube to establish an artificial airway. This measure is crucial for ensuring the patient's respiratory function. However, because this setup allows respiratory air to bypass the vocal cords and pass directly through the tracheostomy tube, patients lose the ability to speak. This not only greatly hinders their daily communication but also creates additional communication barriers for medical and nursing staff.
[0003] To address the aforementioned issues, one existing solution involves installing a voice valve within the tube-blocking device. This voice valve utilizes the opening and closing vibration principle of a one-way valve; when the patient inhales, the valve opens and vibrates, producing sound, enabling the patient to engage in basic verbal communication. This significantly improves the patient's quality of life, allowing them to express their needs and feelings to a certain extent, and greatly promoting effective communication between doctors and patients.
[0004] While existing voice valve technology offers some help in addressing the issue of patients being unable to speak, this approach is not without limitations. Specifically, due to variations in tracheotomy incision diameters among patients, corresponding endotracheal tube sizes are required to ensure treatment effectiveness and individual comfort. However, currently available tube occlusion devices typically only fit specific endotracheal tube sizes and cannot be flexibly adjusted to meet diverse clinical needs, undoubtedly increasing the complexity of the work for healthcare professionals. Therefore, developing a universal tube occlusion device suitable for multiple endotracheal tube sizes is of paramount importance. Utility Model Content
[0005] This application provides a medical tube-blocking device to solve the problem that existing tube-blocking devices cannot be adapted to different models of tracheal tube sleeves. The technical solution is as follows:
[0006] This application provides a medical tube-blocking device, comprising: a main body having an internal cavity for conveying gas; and an adapter connector connected to the main body, the adapter connector communicating with the internal cavity of the main body for connecting a tracheal cannula.
[0007] The adapter includes: an adapter end for insertion into a tracheostomy tube; an adjusting end connected between the adapter end and the main body, wherein a first threaded structure is provided on the outer surface of the adjusting end; a clamping jaw connected to the outer surface of the adjusting end, the clamping jaw extending toward the adapter end in a direction away from the adjusting end, and forming a gap between the clamping jaw and the outer surface of the adapter end; and a knob component fitted onto the adjusting end, wherein a second threaded structure adapted to the first threaded structure is provided on the inner surface of the knob component, so as to adjust the gap between the clamping jaw and the adapter end by rotating the knob component to press the clamping jaw.
[0008] In one embodiment, the knob component is configured as a flared structure that gradually increases in size from the end near the adjustment end to the end near the adapter end.
[0009] In one embodiment, it further includes: a filter component installed inside the body to divide the internal cavity of the body into a first region and a second region; and an adapter connected to the first region.
[0010] In one embodiment, it further includes: an oxygen connector connected to the main body, the oxygen connector communicating with the first region, and the oxygen connector being used to connect an oxygen pipe.
[0011] In one embodiment, it further includes a flow valve, configured on the oxygen connector, for adjusting the opening degree of the oxygen connector.
[0012] In one embodiment, it further includes: a one-way valve installed in the second region, the one-way valve being able to vibrate upon contact with flowing gas; and a vent with controllable opening provided on the main body, the vent communicating with the second region and the vent located on the side of the one-way valve away from the filter element.
[0013] In one embodiment, it further includes: an adjustment component disposed on the main body, the adjustment component being in communication with the vent hole for adjusting the opening degree of the vent hole.
[0014] In one embodiment, the adjusting component includes: a valve body mounted on a main body, the valve body having a first vent hole; a valve plate covering the vent hole, the valve plate having a plurality of second vent holes of different diameters, each second vent hole communicating with a second region through the vent hole; the first vent hole and the corresponding second vent hole are aligned to adjust the opening of the vent hole through each second vent hole; or the first vent hole and each second vent hole are misaligned to close the vent hole through the valve plate.
[0015] In one embodiment, the valve plate is fixed to the main body; the valve body is rotatably mounted on the main body and covers the side of the valve plate opposite to the vent hole, and the position of the first vent hole is adjusted by rotating the valve body.
[0016] In one embodiment, the valve body is fixed to the main body and has a sliding groove; the valve plate is rotatably embedded in the valve body and has a slider that can slide into the sliding groove so that the valve plate can be rotated in the valve body by moving the slider, thereby adjusting the position of each second vent hole.
[0017] Compared with existing technologies, the medical tube-closing device proposed in the above technical solution, by rotating a knob component fitted on the adjusting end, achieves the purpose of the knob component driving the clamps to press against the tracheal sleeve fitted on the adapter end. This allows the adapter on the medical tube-closing device of this application to be compatible with different models of tracheal sleeves, effectively improving the versatility and practicality of the medical tube-closing device. When medical personnel use this medical tube-closing device, in most cases, it is not necessary to check the model of the tracheal sleeve. Therefore, it avoids the need to find a compatible model of tracheal sleeve when installing the medical tube-closing device, saving time in finding and selecting the tube-closing device and avoiding unnecessary trouble.
[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0019] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.
[0020] Figure 1 This is a three-dimensional structural diagram of the medical tube-blocking device in the embodiments of this application;
[0021] Figure 2 This is a three-dimensional structural diagram of the adapter in the embodiments of this application;
[0022] Figure 3 This is a diagram showing the state of the one-way valve during inhalation in an embodiment of this application;
[0023] Figure 4 This is a diagram showing the state of the one-way valve during exhalation in an embodiment of this application;
[0024] Figure 5 This is a three-dimensional structural diagram of the adjustment component in the first embodiment of this application;
[0025] Figure 6 This is a schematic diagram of the valve body in the first embodiment of this application;
[0026] Figure 7This is a schematic diagram of the valve plate structure in the first embodiment of this application;
[0027] Figure 8 This is a three-dimensional structural diagram of the adjustment component in the second embodiment of this application;
[0028] Figure 9 This is a schematic diagram of the valve body in the second embodiment of this application;
[0029] Figure 10 This is a schematic diagram of the valve plate structure in the second embodiment of this application.
[0030] Figure label:
[0031] 1. Main body;
[0032] 10. Ventilation holes;
[0033] 2. Adapter connector;
[0034] 21. Adapter end; 22. Adjustment end; 23. Gripper; 24. Knob component;
[0035] 3. Filter components;
[0036] 4. Oxygen connector;
[0037] 41. Flow valve;
[0038] 5. One-way valve;
[0039] 6. Adjustment components;
[0040] 61. Valve body; 62. Valve plate;
[0041] 611, First vent; 612, Slide groove; 621, Second vent; 622, Slider. Detailed Implementation
[0042] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0043] Reference Figure 1 and Figure 2As shown, an embodiment of this application proposes a medical tube-blocking device, which may include: a main body 1 having an internal cavity for conveying gas; an adapter 2 connected to the main body 1, communicating with the internal cavity of the main body 1, for connecting a tracheal cannula; the adapter 2 includes: an adapter end 21 for insertion into the tracheal cannula; an adjusting end 22 connected between the adapter end 21 and the main body 1, the outer surface of the adjusting end 22 having a first thread structure; a clamp 23 connected to the outer surface of the adjusting end 22, the clamp 23 extending toward the adapter end 21 away from the adjusting end 22, and forming a gap between the clamp 23 and the outer surface of the adapter end 21; and a knob component 24 sleeved on the adjusting end 22, the inner surface of the knob component 24 having a second thread structure adapted to the first thread structure, so that by rotating the knob component 24 to press the clamp 23, the gap between the clamp 23 and the adapter end 21 can be adjusted.
[0044] Specifically, in the technical solution adopted in this application, the main body 1 of the tube-blocking device is a tube to form a main body 1 with an internal cavity for delivering oxygen or gas exhaled by the user; an adapter 2 can be connected to one end of the main body 1, and the adapter 2 communicates with the internal cavity of the main body 1 for connecting the tracheal tube sleeve. It should be explained that the trachea is used to communicate with the user's respiratory system, and the tracheal tube sleeve is a connector on the trachea for connecting the tube-blocking device.
[0045] Furthermore, refer to Figure 2As shown, in some embodiments, the adapter 2 may include an adapter end 21 and an adjustment end 22. The adapter end 21 is used to be inserted into the tracheal tube sleeve, while the adjustment end 22 is connected between the main body 1 and the adapter end 21, so that the adapter 2 can connect the main body 1 and the tracheal tube sleeve. Because various models of endotracheal tubes have different diameters, this application requires an adapter 21 to be compatible with most models of endotracheal tubes. Therefore, the adapter 2 is also provided with a clamp 23. One end of the clamp 23 is connected to the outer surface of the adjusting end 22, and the other end extends toward the adapter 21 in a direction away from the adjusting end 22, forming a gap between the clamp 23 and the outer surface of the adapter 21. A knob component 24 is fitted on the adjusting end 22. The inner side of the knob component 24 is provided with a second thread structure, i.e., an internal thread structure. The outer surface of the adjusting end 22 is provided with a first thread structure, i.e., an external thread structure. The first thread structure and the second thread structure are compatible. When the knob component 24 is rotated, the knob component 24 can be adjusted to adjust its position on the adjusting end 22, so that the clamp 23 can be pressed by rotating the knob component 24, thereby adjusting the gap between the clamp 23 and the adapter 21. In use, insert the adapter end 21 into the tracheal tube sleeve, and manually rotate the knob component 24 to gradually press the clamp 23 until the clamp 23 drives the tracheal tube sleeve to tighten around the adapter end 21, achieving a sealing effect. The medical tube-closing device of this application is compatible with most models of tracheal tube sleeves, effectively improving versatility and avoiding unnecessary trouble caused by incompatibility between the tracheal tube sleeve and the tube-closing device. The engagement of the knob component 24 and the clamp 23 locks the tracheal tube sleeve onto the adapter end 21, preventing the tracheal tube sleeve from being shaken off the adapter end 21 during violent coughing.
[0046] Furthermore, refer to Figure 2 As shown, in some embodiments, the knob component 24 is configured as a flared structure that gradually increases in size from the end near the adjustment end 22 to the end near the adapter end 21.
[0047] Specifically, in the technical solution adopted in this application, the knob component 24 of the flared structure faces the adapter end 21 with a relatively large opening. When the knob component 24 is rotated and gradually approaches the adapter end 21, the clamping claw 23 can be pressed against the inner wall by gradually narrowing, thereby achieving fine adjustment of the force of the clamping claw 23. The clamping claw 23 is adjusted by the knob component 24 to a pressing force that can be adapted to the strength of the tracheal tube sleeve structure, so that the tracheal tube sleeve is not easily damaged when pressed by the clamping claw 23, thus achieving the purpose of protecting the tracheal tube sleeve.
[0048] Furthermore, refer to Figure 1 As shown, in some embodiments, it further includes: a filter component 3, installed inside the body 1 to divide the internal cavity of the body 1 into a first region and a second region; and an adapter 2 communicating with the first region.
[0049] Specifically, in the technical solution adopted in this application, the filter component 3 is used to filter particles in the air, such as dust. At the same time, the filter component 3 can also condense moisture in the user's exhaled air, so that when the user inhales dry air through the medical tube-blocking device, the filter component 3 can humidify and heat the inhaled air through the condensed moisture.
[0050] Furthermore, refer to Figure 1 As shown, in some embodiments, it further includes: oxygen connector 4, which is connected to the main body 1, oxygen connector 4 is connected to the first region, and oxygen connector 4 is used to connect an oxygen pipe.
[0051] Specifically, in the technical solution adopted in this application, when the main body 1 is set as a circular tube structure, the oxygen connector 4 is connected to the radial side of the main body 1, while when the main body 1 is set as a square tube structure, the oxygen connector is connected to the outer surface of one side of the main body 1; in one embodiment, the oxygen connector 4 can be integrally formed with the main body 1. The oxygen connector 4 and the adapter 2 are respectively connected to the first region of the main body 1. After the oxygen connector 4 is connected to the oxygen tube, oxygen enters the first region through the oxygen connector 4 and then exits the oxygen in the first region through the adapter 2.
[0052] Furthermore, refer to Figure 1 As shown, in some embodiments, it also includes a flow valve 41, configured on the oxygen connector 4, for adjusting the opening degree of the oxygen connector 4.
[0053] Specifically, in one embodiment of the technical solution adopted in this application, the oxygen connector 4 is also equipped with a flow valve 41, which can adjust the opening of the oxygen connector 4, thereby adjusting the gas flow rate entering the first area through the oxygen connector 4, so as to realize the adjustment of the user's oxygen intake on the tube blocking device.
[0054] Furthermore, refer to Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, it further includes: a one-way valve 5 installed in the second region, the one-way valve 5 being able to vibrate upon contact with flowing gas; and a vent 10 with controllable opening on the main body 1, the vent 10 communicating with the second region, and the vent 10 being located on the side of the one-way valve 5 away from the filter element.
[0055] Specifically, in the technical solution adopted in this application, when the one-way valve 5 comes into contact with gas flowing from the side of the one-way valve 5 away from the adapter 2 towards the adapter 2, the one-way valve 5 vibrates and emits sound. An adjustable vent 10 is provided on the main body 1, which communicates with the second area and is located on the side of the one-way valve 5 away from the adapter 2, allowing outside air to flow into the second area through the vent 10. During use, the user inhales, allowing air to enter the second area through the vent 10, and then flow through the one-way valve 5 towards the adapter 2. By adjusting the inhalation volume, the one-way valve 5 vibrates at different frequencies, emitting different sounds for communication between the user and others.
[0056] Furthermore, refer to Figures 5 to 10 As shown, in some embodiments, it further includes: an adjustment component 6, disposed on the main body 1, the adjustment component 6 being connected to the vent hole 10, for adjusting the opening degree of the vent hole 10.
[0057] Specifically, in the technical solution adopted in this application, the opening degree of the vent 10 can be adjusted by partially blocking the vent 10 through the adjusting component 6. This prevents discomfort for the user when switching directly from an open to a completely closed vent 10 state during the use of the medical tube-blocking device. The medical tube-blocking device of this application allows the user to gradually adapt to the tube-blocking process by gradually adjusting the opening degree of the vent 10.
[0058] Furthermore, refer to Figure 5 and Figure 8 As shown, in some embodiments, the adjusting component 6 includes: a valve body 61, mounted on the main body 1, with a first vent hole 611 on the valve body 61; a valve plate 62, covering the vent hole 10, with a plurality of second vent holes 621 of different diameters on the valve plate 62, each second vent hole 621 communicating with the second region through the vent hole 10; the first vent hole 611 is aligned with the corresponding second vent hole 621 to adjust the opening of the vent hole 10 through each second vent hole 621; or the first vent hole 611 is misaligned with each second vent hole 621 to close the vent hole 10 through the valve plate 62.
[0059] Specifically, in the technical solution adopted in this application, a valve body 61 and a valve plate 62 are installed on the main body 1. The valve plate 62 covers the vent hole 10 to conceal it. The valve body 61 has a first vent hole 611, while the valve plate 62 has several second vent holes 621 with different diameters. All second vent holes 621 communicate with the second area through the vent hole 10. In this embodiment, the valve body 61 and the valve plate 62 can rotate relative to each other. When the first vent hole 611 is connected to one of the second vent holes 621, the user can draw in outside air through the second vent hole 621 connected to the first vent hole 611. Since the diameters of the second vent holes 621 are different, the first vent hole 611 can be connected to the second vent hole 621 of the required diameter to adjust the opening of the vent hole 10. It should be explained that the valve body 61 and the valve plate 62 can rotate relative to each other. The valve body 61 can rotate on the main body 1, or the valve plate 62 can rotate on the main body 1 or the valve body 61, as long as the first vent 611 is aligned with the second vent 621 of the required diameter.
[0060] Furthermore, refer to Figures 5 to 7 As shown, in the first embodiment of this application, the valve plate 62 is fixed on the main body 1; the valve body 61 is rotatably mounted on the main body 1, and the valve body 61 covers the side of the valve plate 62 away from the vent hole 10, and the position of the first vent hole 611 is adjusted by rotating the valve body 61.
[0061] Specifically, in one embodiment of the technical solution adopted in this application, the valve plate 62 is fixed on the main body 1, and the vent hole 10 is blocked by the valve plate 62 to introduce outside air into the second area through each of the second vent holes 621; while the valve body 61 is rotatably mounted on the main body 1 and covers the side of the valve plate 62 away from the vent hole 10. In use, rotating the valve body 61 causes the first vent hole 611 to align with the second vent hole 621 of the required diameter; or, rotating the valve body 61 causes the first vent hole 611 to be in a staggered position with each of the second vent holes 621, thereby completely sealing the vent hole 10 by adjusting the component 6.
[0062] Furthermore, refer to Figures 8 to 10 As shown, in the second embodiment of this application, the valve body 61 is fixed on the main body 1, and the valve body 61 is provided with a sliding groove 612; the valve plate 62 is rotatably embedded in the valve body 61, and the valve plate 62 is provided with a slider 622, which can slide into the sliding groove 612 so that the valve plate 62 can be driven to rotate in the valve body 61 by moving the slider 622, thereby adjusting the position of each second vent hole 621.
[0063] Specifically, in one embodiment of the technical solution adopted in this application, the valve body 61 is fixed on the main body 1 to cover the vent hole 10, and a sliding groove 612 is provided on the valve body 61; while the valve plate 62 is rotatably embedded in the valve body 61, and a slider 622 is provided on the valve plate 62. The slider 622 is slidably inserted into the sliding groove 612, and the outer end of the slider is exposed on the side of the valve body 61 away from the vent hole 10. In use, the valve plate 62 can be rotated in the valve body 61 by moving the slider 622 to align the second vent hole 621 of the required diameter with the first vent hole 611; or, the valve plate 62 can be rotated in the valve body 61 by moving the slider 622 to adjust each second vent hole 621 to a position offset from the first vent hole 611, thereby achieving complete closure of the vent hole 10 through the adjustment component 6.
[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.
[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0066] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process. Furthermore, the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functionality involved.
[0067] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus or device (such as a computer-based system, a processor-included system or other system that can fetch and execute instructions from, an instruction execution system, apparatus or device).
[0068] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. All or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware, the program being stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiments.
[0069] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. This storage medium can be a read-only memory, a disk, or an optical disk, etc.
[0070] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A medical tube-blocking device, characterized in that, include: The main body has an internal cavity for conveying gas; An adapter connector is connected to the main body, and the adapter connector communicates with the internal cavity of the main body for connecting a tracheal tube. The adapter includes: An adapter end for insertion into the tracheostomy tube; An adjustment end is connected between the adapter end and the main body, and a first thread structure is provided on the outer surface of the adjustment end; The gripper is connected to the outer surface of the adjustment end, the gripper extends toward the adapter in a direction away from the adjustment end, and a gap is formed between the gripper and the outer surface of the adapter. A knob component is sleeved on the adjustment end. The inner surface of the knob component is provided with a second thread structure that is adapted to the first thread structure, so that the gap between the clamp and the adapter end can be adjusted by rotating the knob component to press the clamp.
2. The medical tube-clogging device according to claim 1, characterized in that, The knob component is designed with a flared structure that gradually increases in size from the end near the adjustment end to the end near the adapter end.
3. The medical tube-closing device according to claim 1, characterized in that, Also includes: A filter component is installed inside the main body to divide the internal cavity of the main body into a first region and a second region; The adapter is connected to the first area.
4. The medical tube-clogging device according to claim 3, characterized in that, Also includes: An oxygen connector is connected to the main body and communicates with the first area. The oxygen connector is used to connect an oxygen tube.
5. The medical tube-closing device according to claim 4, characterized in that, Also includes: A flow valve, configured on the oxygen connector, is used to adjust the opening degree of the oxygen connector.
6. The medical tube-clogging device according to claim 3 or 4, characterized in that, Also includes: A one-way valve is installed in the second region, and the one-way valve can vibrate upon contact with flowing gas; The main body is provided with a vent hole with controllable opening. The vent hole is connected to the second region and is located on the side of the one-way valve away from the filter component.
7. The medical tube-closing device according to claim 6, characterized in that, Also includes: An adjustment component is disposed on the main body, and the adjustment component is in communication with the vent hole for adjusting the opening degree of the vent hole.
8. The medical tube-clogging device according to claim 7, characterized in that, The adjustment component includes: A valve body is mounted on the main body, and the valve body is provided with a first vent hole; A valve plate covers the vent hole, and the valve plate is provided with a plurality of second vent holes of different diameters. Each second vent hole is connected to the second region through the vent hole. The first vent hole is connected to the corresponding second vent hole to adjust the opening of the vent hole through each of the second vent holes; or The first vent hole is misaligned with each of the second vent holes so that the vent hole is closed by the valve plate.
9. The medical tube-closing device according to claim 8, characterized in that, The valve plate is fixed to the main body; The valve body is rotatably mounted on the main body, and the valve body covers the side of the valve plate opposite to the vent hole. The position of the first vent hole can be adjusted by rotating the valve body.
10. The medical tube-closing device according to claim 8, characterized in that, The valve body is fixed to the main body, and the valve body is provided with a sliding groove; The valve plate is rotatably embedded in the valve body, and a slider is provided on the valve plate. The slider is slidably inserted into the groove so that the valve plate can be rotated in the valve body by moving the slider, thereby adjusting the position of each of the second vent holes.