Rotatable chest drainage tube fixing device
By designing a rotatable chest drainage tube fixing device, the problem that traditional fixing devices are difficult to adjust the direction of the drainage tube is solved, effective drainage under different positions is achieved, and the operation process is simplified.
Patent Information
- Application Number
- CN202421674104.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The existing chest drainage tube fixing device is difficult to adjust the direction of the drainage tube, which leads to a higher position when the patient adjusts the position, which is not conducive to drainage, and the traditional fixing method is cumbersome.
A rotatable chest drainage tube fixing device is designed, including a bottom coating, a rotating layer and an adhesive layer. The bottom coating is fixed to the patient's skin, the rotating layer is parallel to the bottom coating and rotatable, and the adhesive layer is used to fix the drain tube or its interface on the rotating layer.
Through the rotatable rotating layer, patients can adjust the direction of the drainage tube as needed, without tearing off the paste and re-fixing it. The operation is simple and quick, ensuring the effective position of the drainage tube under different positions.
Smart Images
Figure CN223009607U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of thoracic drainage tube fixation devices, and particularly to a rotatable thoracic drainage tube fixation device. Background Art
[0002] A thoracic drainage tube is a medical device used to treat chest diseases such as pneumothorax, hemothorax, empyema, etc. By placing one end of the tube in the thoracic cavity and connecting the other end to a water seal bottle or drainage bag positioned below the thoracic cavity, it utilizes gravity and respiratory movement to help drain gas and fluid from the thoracic cavity, promoting the re-expansion of lung tissue and restoring normal physiological functions.
[0003] The thoracic drainage tube is usually fixed on the side of the patient's body. When the patient is in the supine position, in order to prevent the patient from pressing on the drainage tube clamp and the drainage tube interface, causing discomfort, the drainage tube clamp and the drainage tube interface can only be fixed towards the front of the patient. When the patient adjusts the body position to the lateral position or the sitting position, the position of the drainage tube becomes higher compared to the position in the supine position, which is not conducive to drainage. At this time, it is necessary to adjust the direction of the drainage tube clamp and the drainage tube interface, but the traditional fixation method cannot adjust the direction of the drainage tube as needed at will. It can only remove the adhesive for fixing the drainage tube clamp and the drainage tube interface and re-fix it, which is rather cumbersome. Utility Model Content
[0004] In view of the deficiencies of the above-mentioned prior art, the purpose of this application is to provide a rotatable thoracic drainage tube fixation device, aiming to solve the problem that it is difficult to adjust the direction of the existing thoracic drainage tube after fixation.
[0005] The technical solution adopted by this application to solve the technical problem is as follows: A rotatable thoracic drainage tube fixation device, comprising: a bottom dressing layer for fixing on the patient's skin;
[0006] A rotating layer, which is arranged parallel to the bottom dressing layer and is rotatably arranged on the bottom dressing layer;
[0007] An adhesive layer, which is arranged on the surface of the rotating layer facing away from the bottom dressing layer, and is used for fixing the drainage tube, the drainage tube interface or the drainage tube clamp.
[0008] Further, the rotatable thoracic drainage tube fixation device further comprises: a rotating shaft, one end of which is arranged on the surface of the bottom dressing layer facing away from the patient's skin, and the other end penetrates through the rotating layer and is rotatably connected to the rotating layer, and the rotating shaft is perpendicular to the bottom dressing layer.
[0009] Further, the outer diameter of the rotating shaft gradually becomes larger away from the bottom dressing layer, and a limiting block is formed at one end of the rotating shaft away from the bottom dressing layer;
[0010] A rotating hole is provided through the middle of the rotating layer, and the rotating hole is rotatably sleeved on the rotating shaft. The limiting block is used to prevent the rotating layer from separating from the rotating shaft, and the limiting block does not protrude from the rotating hole.
[0011] Further, the adhesive layer covers the bottom dressing layer and the opening of the rotating hole facing away from the bottom dressing layer.
[0012] Further, the rotatable thoracic drainage tube fixing device further includes: a limiter, the limiter is arranged on the bottom dressing layer, and the limiter is used to limit the relative rotation of the bottom dressing layer and the rotating layer.
[0013] Further, the shape of the rotating layer is a disc shape, and the rotating layer is arranged coaxially with the rotating shaft;
[0014] The limiter includes: a tooth part, the tooth part is arranged on the edge of the rotating layer away from the axis of the rotating layer;
[0015] A limit pin, the limit pin is arranged on the bottom dressing layer, the limit pin meshes with the tooth part, and the limit pin is used to limit the relative movement of the tooth part with respect to it.
[0016] Further, the tooth part includes: a plurality of teeth, the plurality of teeth are arranged at intervals along the circumferential direction of the rotating layer on the edge of the rotating layer away from the axis of the rotating layer, and the limit pin is arranged between any two adjacent teeth.
[0017] Further, a sliding groove is arranged on the bottom dressing layer along its radial direction, the sliding groove is concave in the bottom dressing layer, and the length of the sliding groove is not less than the length of the tooth in the radial direction of the rotating layer;
[0018] The limit pin includes: a sliding part, the sliding part is slidably arranged on the sliding groove;
[0019] A limiting part, the limiting part is arranged on the sliding part, the sliding part is arranged between any two adjacent teeth, and the limiting part is used to limit the relative movement of the tooth part with respect to it.
[0020] Further, the limiter further includes: an elastic part, the elastic part is connected between the sliding part and the bottom dressing layer, and the elastic part is arranged in the sliding groove, and the elastic part is used to drive the sliding part to move towards the direction of the rotating shaft;
[0021] An elastic rope, one end of the elastic rope is arranged on the limit pin, and the other end passes through the adhesive layer and is connected to the limit block, and the elastic rope is used to drive the limit pin to move towards the direction of the rotating shaft.
[0022] Further, the bottom dressing layer is a medical dressing, and the adhesive layer is a magic tape.
[0023] Compared with the prior art, by providing a bottom layer, the rotating layer can be indirectly rotatably arranged on the skin of a patient. During use, the drainage tube is fixed on the rotating layer. When the patient needs to adjust the body position to a lateral position or a sitting position, the position of the drainage tube becomes higher compared to the position when lying flat, which is not conducive to drainage. At this time, the rotating layer can be rotated, thereby driving the drainage tube to change direction, without removing the adhesive to re-fix the drainage tube, and the operation is simple and fast. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for description in the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0025] Figure 1 is an overall structural schematic diagram of a rotatable thoracic drainage tube fixing device provided by an embodiment;
[0026] Figure 2 is an overall structural schematic diagram of a rotatable thoracic drainage tube fixing device provided by another embodiment;
[0027] Figure 3 is Figure 2 a partial cross-sectional structural schematic diagram of the embodiment;
[0028] Figure 4 is Figure 3 a partial enlarged structural schematic diagram of part A of
[0029] In the figure: 100, bottom layer; 110, rotating shaft; 111, limiting block; 120, sliding groove; 200, rotating layer; 210, rotating hole; 300, adhesive layer; 400, limiter; 410, tooth part; 411, tooth; 420, limiting pin; 421, sliding part; 422, limiting part; 430, elastic part; 440, elastic rope; 500, drainage tube. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0030] The following details the embodiments of the present application. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.
[0031] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.
[0032] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0033] In addition, the technical features involved in different embodiments of the present utility model described above can be combined with each other as long as they do not conflict with each other.
[0034] The present utility model provides a rotatable thoracic drainage tube 500 fixing device as Figures 1 to 4 shown in the figure, aiming to solve the problem that it is difficult to adjust the direction after the existing thoracic drainage tube 500 is fixed.
[0035] The rotatable thoracic drainage tube 500 fixing device mainly includes: a bottom layer 100, a rotating layer 200, and an adhesive layer 300. The rotating layer 200 is arranged parallel to the bottom layer 100, the rotating layer 200 is rotatably arranged on the bottom layer 100, the adhesive layer 300 is arranged on the surface of the rotating layer 200 facing away from the bottom layer 100, the bottom layer 100 is used for fixing on the skin of the patient, and the adhesive layer 300 is used for fixing the drainage tube 500, the drainage tube 500 interface, or the drainage tube 500 clip.
[0036] Specifically, in traditional fixation methods, the interface of the drainage tube 500, the clip of the drainage tube 500, or the drainage tube 500 itself pressing on the patient's skin for a long time is likely to cause pressure sores. A hydrocolloid patch or foam dressing can be provided on the surface of the bottom layer 100 facing the patient's skin to paste the bottom layer 100 onto the patient's skin. The interface of the drainage tube 500, the clip of the drainage tube 500, or the drainage tube 500 itself contacts the patient's skin through the bottom layer 100. Since the surface of the bottom layer 100 facing the patient is a flat surface, uneven pressure exerted on different parts when the bottom layer 100 contacts the patient's skin is avoided, preventing pressure sores. The bonding layer 300 is a Velcro, and the drainage tube 500 can be fixed to the Velcro by a Velcro strap, or it is made of a material that can be stably bonded by tape, such as smooth plastic, facilitating medical staff to bond and fix the drainage tube 500 to the bonding layer 300. During actual use, the rotating layer 200 can be rotated, so that the direction of the drainage tube 500, the clip of the drainage tube 500, and the interface of the drainage tube 500 (hereinafter referred to as the direction of the drainage tube 500) can be adjusted arbitrarily as needed. Then, according to the need, items such as tape that can limit the relative rotation between the rotating layer 200 and the bottom layer 100 are used to temporarily fix the rotating layer 200 and the bottom layer 100, so that the direction of the drainage tube 500 will not change by itself.
[0037] The thoracic drainage tube 500 is usually fixed on the side of the patient's body. When the patient is in the supine position, to prevent the patient from pressing on the clip of the drainage tube 500 and the interface of the drainage tube 500 and causing discomfort, the clip of the drainage tube 500 and the interface of the drainage tube 500 can only be fixed towards the front of the patient. When the patient adjusts the body position to the lateral position or the sitting position, the position of the drainage tube 500 becomes higher relative to the position in the supine position, which is not conducive to drainage. At this time, the direction of the clip of the drainage tube 500 and the interface of the drainage tube 500 needs to be adjusted, but the traditional fixation method cannot adjust the direction of the drainage tube 500 arbitrarily as needed. Only the adhesive for fixing the clip of the drainage tube 500 and the interface of the drainage tube 500 can be torn off and fixed again, which is rather cumbersome.
[0038] The present utility model indirectly rotatably arranges the rotating layer 200 on the patient's skin by providing the bottom layer 100, and fixes the drainage tube 500 on the rotating layer 200 during use. When the patient needs to adjust the body position to the lateral position or the sitting position, the position of the drainage tube 500 becomes higher relative to the position in the supine position, which is not conducive to drainage. At this time, the rotating layer 200 can be rotated, thereby driving the drainage tube 500 to change the direction, without tearing off the adhesive and re-fixing the drainage tube 500, and the operation is simple and fast.
[0039] In some embodiments, such as Figures 2 to 4As shown in the figure, the rotatable thoracic drainage tube 500 fixing device further includes: a rotating shaft 110, one end of the rotating shaft 110 is arranged on the surface of the bottom layer 100 facing away from the patient's skin, and the other end penetrates through the rotating layer 200 and is rotatably connected to the rotating layer 200. The rotating shaft 110 is perpendicular to the bottom layer 100. Preferably, the rotation centers of the bottom layer 100, the rotating layer 200, and the adhesive layer 300 are collinear.
[0040] In some embodiments, as Figures 2 to 4 shown in the figure, the outer diameter of the rotating shaft 110 gradually increases away from the bottom layer 100, and a limiting block 111 is formed at the end of the rotating shaft 110 away from the bottom layer 100;
[0041] A rotating hole 210 is provided through the middle of the rotating layer 200. The rotating hole 210 is rotatably sleeved on the rotating shaft 110. The limiting block 111 is used to prevent the rotating layer 200 from separating from the rotating shaft 110, and the limiting block 111 does not protrude from the rotating hole 210.
[0042] During actual use, since the limiting block 111 does not protrude from the rotating hole 210, when the drainage tube 500, the drainage tube 500 interface, or the drainage tube 500 clip is fixed on the adhesive layer 300, the drainage tube 500, the drainage tube 500 interface, or the drainage tube 500 clip is not easily in contact with the limiting block 111, avoiding the limiting block 111 from wearing the drainage tube 500, the drainage tube 500 interface, and the drainage tube 500 clip, or the contact between the drainage tube 500, the drainage tube 500 interface, or the drainage tube 500 clip and the limiting block 111 causing an obstruction to the relative rotation of the rotating layer 200 and the bottom layer 100.
[0043] In some embodiments, as Figure 1 shown in the figure, the adhesive layer 300 covers the bottom layer 100 and is arranged at the opening of the rotating hole 210 facing away from the bottom layer 100. Through the above arrangement, when the drainage tube 500, the drainage tube 500 interface, or the drainage tube 500 clip is fixed on the adhesive layer 300, it can avoid the contact between the drainage tube 500, the drainage tube 500 interface, or the drainage tube 500 clip and the limiting block 111, so as to prevent the limiting block 111 from wearing the drainage tube 500, the drainage tube 500 interface, and the drainage tube 500 clip, or the contact between the drainage tube 500, the drainage tube 500 interface, or the drainage tube 500 clip and the limiting block 111 causing an obstruction to the relative rotation of the rotating layer 200 and the bottom layer 100.
[0044] In some embodiments, as Figures 2 to 4 shown in the figure, the rotatable thoracic drainage tube 500 fixing device further includes: a limiter 400, the limiter 400 is arranged on the bottom layer 100, and the limiter 400 is used to limit the relative rotation of the bottom layer 100 and the rotating layer 200.
[0045] In actual use, when the patient needs to adjust the body position to a side-lying position or a sitting position, the rotating layer 200 can be rotated to drive the drainage tube 500 to change direction. However, if there is no infinite structure between the rotating layer 200 and the bottom coating layer 100, it is easy for the drainage tube 500 fixed on the rotating layer 200 to change direction by itself, which is easy to cause an accident. The bottom coating layer 100 and the rotating layer 200 are limited to rotate relative to each other by the limiter 400. After adjusting the direction of the drainage tube 500, the bottom coating layer 100 and the rotating layer 200 can be temporarily fixed to prevent accidents.
[0046] In some embodiments, Figures 2 to 4 As shown in , the shape of the rotating layer 200 is a disc, and the rotating layer 200 is coaxially arranged with the rotating shaft 110;
[0047] The limiter 400 includes: a tooth portion 410 and a limit pin 420. The tooth portion 410 is arranged on the edge of the rotating layer 200 away from the axis of the rotating layer 200. The limit pin 420 is arranged on the base layer 100. The limit pin 420 is meshed with the tooth portion 410. The limit pin 420 is used to limit the relative movement of the tooth portion 410 and the tooth portion 410.
[0048] Specifically, when the limit pin 420 is engaged with the tooth portion 410, since the limit pin 420 is fixed on the bottom coating layer 100, when the bottom coating layer 100 is fixed on the patient's skin, radial displacement is not easy to occur between the bottom coating layer 100 and the rotating layer 200, and radial displacement is not easy to occur between the limit pin 420 and the rotating layer 200. Therefore, the limit pin 420 and the tooth portion 410 are not easily released from the engagement state, thereby limiting the relative movement of the tooth portion 410 and the bottom coating layer 100.
[0049] In some embodiments, Figures 2 to 4 As shown in , the tooth portion 410 includes: a plurality of teeth 411 , which are arranged at intervals along the circumference of the rotating layer 200 on the edge of the rotating layer 200 away from the axis of the rotating layer 200 , and the limiting pin 420 is arranged between any two adjacent teeth 411 .
[0050] In some embodiments, Figures 2 to 4 As shown in the figure, a slide groove 120 is provided on the bottom coating layer 100 along its radial direction, and the slide groove 120 is recessed in the bottom coating layer 100, and the length of the slide groove 120 is not less than the length of the tooth 411 in the radial direction of the rotating layer 200, and the limit pin 420 includes: a sliding portion 421 and a limit portion 422, the sliding portion 421 is slidably arranged on the slide groove 120, the limit portion 422 is arranged on the sliding portion 421, the sliding portion 421 is arranged between any two adjacent teeth 411, and the limit portion 422 is used to limit the relative movement of the tooth portion 410 therewith.
[0051] During actual use, the position of the limiting portion 422 can be changed by controlling the sliding portion 421 to slide on the sliding groove 120, so that the limiting portion 422 can be located between any two adjacent teeth 411 to limit the relative movement between the tooth portion 410 and it, or away from several teeth 411 so that the bottom dressing layer 100 and the rotating layer 200 can rotate relative to each other, facilitating the adjustment of the direction of the drainage tube 500.
[0052] In some embodiments, as Figures 2 to 4 shown in, the limiter 400 further includes: an elastic portion 430 and an elastic cord 440.
[0053] The elastic portion 430 is connected between the sliding portion 421 and the bottom dressing layer 100, and the elastic portion 430 is disposed in the sliding groove 120. The elastic portion 430 is used to drive the sliding portion 421 to move toward the direction of the rotating shaft 110. One end of the elastic cord 440 is disposed on the limiting pin 420, and the other end passes through the adhesive layer 300 and is connected to the limiting block 111. The elastic cord 440 is used to drive the limiting pin 420 to move toward the direction of the rotating shaft 110.
[0054] During actual use, under the action of the elastic portion 430 and / or the elastic cord 440, the limiting pin 420 can be moved toward the direction of the rotating shaft 110. Specifically, when the patient needs to adjust the body position to the lateral position or the sitting position, at this time, the limiting pin 420 is moved away from the direction of the rotating shaft 110, so that the limiting pin 420 is away from several teeth 411, enabling the bottom dressing layer 100 and the rotating layer 200 to rotate relative to each other. The medical staff can rotate the rotating layer 200 to drive the drainage tube 500 to change the direction. After adjusting the direction of the drainage tube 500, release the limiting pin 420. At this time, the limiting pin 420 is driven by the elastic portion 430 and / or the elastic cord 440 to move toward the direction of the rotating shaft 110, so that the limiting pin 420 is located between any two adjacent teeth 411 to limit the relative movement between the tooth portion 410 and it, thereby restricting the relative rotation between the bottom dressing layer 100 and the rotating layer 200 to temporarily fix the bottom dressing layer 100 and the rotating layer 200 and prevent accidents.
[0055] In some embodiments, as Figures 1 to 4 shown in, the bottom dressing layer 100 is a medical dressing, which can prevent pressure sores caused by the interface of the drainage tube 500, the clip or the drainage tube 500 itself. The adhesive layer 300 is a magic tape, and the drainage tube 500 can be fixed on the magic tape through the magic tape, which is easy to tear off and can prevent the interface of the drainage tube 500, the clip or the drainage tube 500 itself from sliding on the adhesive layer 300.
[0056] In summary, a rotatable thoracic drainage tube fixing device is provided, which includes a bottom dressing layer, a rotating layer and an adhesive layer. The bottom dressing layer is used to be fixed on the skin of a patient. The rotating layer is arranged parallel to the bottom dressing layer and is rotatably arranged on the bottom dressing layer. The adhesive layer is arranged on the surface of the rotating layer facing away from the bottom dressing layer, and the adhesive layer is used to fix a drainage tube, a drainage tube interface or a drainage tube clip. By providing the bottom dressing layer, the rotating layer can be indirectly rotatably arranged on the skin of the patient. During use, the drainage tube is fixed on the rotating layer. When the patient needs to adjust the body position to a lateral position or a sitting position, the position of the drainage tube is higher than the position when in the supine position, which is not conducive to drainage. At this time, the rotating layer can be rotated, so as to drive the drainage tube to change the direction, without tearing off the adhesive to re-fix the drainage tube, and the operation is simple and fast.
[0057] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.
Claims
1. A rotatable chest drainage tube fixing device, characterized in that: include: A base layer, the base layer being used to be fixed on the patient's skin; A rotating layer, the rotating layer is arranged in parallel with the bottom coating layer, and the rotating layer is rotatably arranged on the bottom coating layer; An adhesive layer is provided on the surface of the rotating layer away from the base coating layer, and the adhesive layer is used to fix the drainage tube, the drainage tube interface or the drainage tube clip.
2. The rotatable chest drainage tube fixing device according to claim 1, characterized in that: The rotatable chest drainage tube fixing device also includes: a rotating shaft, one end of which is arranged on the surface of the base layer away from the patient's skin, and the other end passes through the rotating layer and is rotatably connected to the rotating layer, and the rotating shaft is perpendicular to the base layer.
3. The rotatable chest drainage tube fixing device according to claim 2, characterized in that: The outer diameter of the rotating shaft gradually increases away from the bottom coating, and one end of the rotating shaft away from the bottom coating forms a limit block; A rotation hole is provided through the middle of the rotation layer, and the rotation hole is rotatably sleeved on the rotation shaft. The limit block is used to prevent the rotation layer from being separated from the rotation shaft, and the limit block does not protrude from the rotation hole.
4. The rotatable chest drainage tube fixing device according to claim 3, characterized in that: The adhesive layer covers the bottom coating layer, and the rotary hole is arranged away from the opening of the bottom coating layer.
5. The rotatable chest drainage tube fixing device according to claim 3, characterized in that: The rotatable chest drainage tube fixing device further comprises: a limiter, wherein the limiter is arranged on the bottom coating layer, and the limiter is used to limit the relative rotation between the bottom coating layer and the rotating layer.
6. The rotatable chest drainage tube fixing device according to claim 5, characterized in that: The rotating layer is in the shape of a disk, and the rotating layer is coaxially arranged with the rotating shaft; The stopper comprises: a tooth portion, the tooth portion being arranged on an edge of the rotating layer away from the axis of the rotating layer; A limit pin is arranged on the base coating layer, the limit pin is meshed with the tooth portion, and the limit pin is used to limit the relative movement of the tooth portion therewith.
7. The rotatable chest drainage tube fixing device according to claim 6, characterized in that: The tooth portion comprises: a plurality of teeth, wherein the plurality of teeth are arranged at intervals along the circumference of the rotating layer on the edge of the rotating layer away from the axis of the rotating layer, and the limiting pin is arranged between any two adjacent teeth.
8. The rotatable chest drainage tube fixing device according to claim 7, characterized in that: The bottom coating layer is provided with a slide groove along its radial direction, the slide groove is recessed in the bottom coating layer, and the length of the slide groove is not less than the length of the tooth in the radial direction of the rotating layer; The limit pin comprises: a sliding portion, the sliding portion being slidably disposed on the sliding groove; A limiting portion, wherein the limiting portion is arranged on the sliding portion, the sliding portion is arranged between any two adjacent teeth, and the limiting portion is used to limit the relative movement of the tooth portion and the sliding portion.
9. The rotatable chest drainage tube fixing device according to claim 8, characterized in that: The stopper further includes: an elastic part, the elastic part is connected between the sliding part and the bottom coating layer, and the elastic part is arranged in the sliding groove, and the elastic part is used to drive the sliding part to move toward the direction of the rotating shaft; An elastic rope, one end of which is arranged on the limit pin, and the other end of which passes through the adhesive layer and is connected to the limit block, and the elastic rope is used to drive the limit pin to move toward the direction of the rotating shaft.
10. The rotatable chest drainage tube fixing device according to any one of claims 1 to 9, characterized in that: The bottom coating layer is a medical dressing, and the adhesive layer is a Velcro.