A chest drainage tube securement device and method that prevents pull migration

Abstract

The present application relates to the technical field of drainage tube fixing, in particular to a chest drainage tube fixing device capable of preventing pulling and displacement, comprising a base, a top of the base is provided with a pulling-preventing buffer mechanism, one side of the pulling-preventing buffer mechanism is provided with a protective shell, one side of the protective shell is provided with a tube feeding mechanism, the other side of the protective shell is provided with a drainage tube clamping assembly, the pulling-preventing buffer mechanism comprises a pulling-preventing shell body fixedly connected with one side of the protective shell through a connecting column, the hydraulic buffer characteristics of the small-sized hydraulic telescopic rod of the device can effectively absorb and disperse the instantaneous pulling force generated due to the body position change, cough and other actions of the patient, avoid the direct rigid transmission of external force to the drainage tube, thereby preventing the pulling and displacement, fracture or tube removal of the pipeline, at the same time, the pulling-preventing frame cooperates with the tube passing hole to form double limiting, ensures that the drainage tube can still maintain a stable position when being accidentally pulled, significantly improves the safety and comfort of the patient, and reduces the risk of complications such as pneumothorax and infection.

Description

Technical Field

[0001] This invention relates to the field of drainage tube fixation technology, specifically to a chest drainage tube fixation device and method to prevent traction displacement. Background Technology

[0002] Chest drainage tubes are key medical devices used after thoracic surgery to drain air and fluid from the pleural cavity, promote lung re-expansion and wound healing. Clinically, they need to be used in conjunction with fixation devices to ensure the stability of the drainage tube and unobstructed drainage, thereby reducing the risk of complications such as pneumothorax and infection.

[0003] The "Integrated Closed Chest Drainage Tube Fixation and Anti-Tension Device" disclosed in application number CN202610149824.8 is also an increasingly mature technology, specifically relating to the field of medical device technology. It includes an installation structure with an internal fixing structure, an anti-tension structure at the bottom, and a fixing base at the bottom of the anti-tension structure. This invention, through its installation and fixing structures, can securely and flexibly fix drainage tubes of different specifications, reducing patient discomfort and effectively preventing displacement or detachment of the drainage tube during use, thus improving the safety and reliability of drainage operations. The anti-tension structure effectively absorbs and buffers the traction force generated by patient activity, preventing excessive traction on the drainage tube that could affect drainage effectiveness or cause harm to the patient. Furthermore, it allows for real-time monitoring, promptly issuing a signal when the traction force is too great, enabling medical personnel to take appropriate measures, further improving the safety and reliability of the device.

[0004] However, the existing devices on the market rely on simple snap-fit ​​and adhesive fixation, lacking buffer and anti-traction structures. When patients turn over, cough, or change position, external force is directly applied to the drainage tube, which can easily cause the tube to be pulled and displaced or even broken or dislodged, seriously threatening the patient's safety. Meanwhile, its clamping part has a fixed diameter, which cannot be adapted to chest drainage tubes of different diameters, resulting in poor clinical applicability. Insecure fixation can easily lead to the drainage tube shaking or twisting, affecting the drainage effect and increasing patient discomfort.

[0005] Therefore, it is necessary to provide a chest drainage tube fixation device and method to prevent traction displacement in order to solve the above problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a chest drainage tube fixation device and method for preventing traction displacement, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a chest drainage tube fixation device to prevent traction displacement, comprising a base, wherein an anti-traction buffer mechanism is provided on the top of the base; The anti-pulling buffer mechanism has a protective shell on one side, a tube feeding mechanism on one side of the protective shell, a cavity inside the protective shell, a pressing and clamping mechanism inside the cavity, and a drainage tube clamping assembly on the other side of the protective shell.

[0008] Preferably, the anti-pull buffer mechanism includes an anti-pull housing fixedly connected to one side of the protective shell via a connecting column. The anti-pull housing contains several sets of small hydraulic telescopic rods. One end of each small hydraulic telescopic rod is eccentrically connected to one side of a first gear. Two second gears are internally connected between the bottom ends of the first gear. A third gear is fixedly connected to one side of each second gear. A tripod is provided in the middle of the anti-pull housing. A through-hole is provided in the middle of the tripod. A meshing groove is provided on the side of the tripod. A sliding groove is provided on one side of the tripod. An anti-pull frame is slidably connected inside the sliding groove. Racks are provided on both sides of the anti-pull frame.

[0009] Preferably, the tube feeding mechanism includes an adjustable movable screw cylinder movably connected to the top of the protective shell, with a screw threadedly connected to the internal thread of the adjustable movable screw cylinder. Two triangular movable frames and an L-shaped frame are movably connected to one side of the protective shell. One end of one of the triangular movable frames is movably connected to the screw. The bottom end of the triangular movable frame and the top of the L-shaped frame are movably connected to the top of the other triangular movable frame via limiting pull rods. Small rubber rollers are movably connected to one end of the L-shaped frame and the two triangular movable frames. A small throttle is provided on the top of the screw.

[0010] Preferably, the pressing and clamping mechanism includes a fixed frame fixedly connected to the top of the cavity, a fixed column fixedly connected to the bottom of the fixed frame, a telescopic spring sleeved on the outside of the fixed column, limit rings provided on the four parts of the telescopic spring, connecting arms movably connected to both sides of the limit rings, a pressing gripper movably connected to one end of the connecting arm, and one side of the pressing gripper movably connected to the fixed column.

[0011] Preferably, the drainage tube clamping assembly includes two L-shaped mounting plates fixedly connected to one side of the bottom of the protective shell. Each L-shaped mounting plate has a small guide rod fixedly connected to its top and bottom. A small return spring is inserted through the outer side of the small guide rod. A clamping seat is fixedly connected to the top of the small return spring. A clamping groove is formed in the middle of the clamping seat.

[0012] Preferably, an adhesive plate is fixedly connected to the bottom end of the base.

[0013] A method for fixing a chest drainage tube to prevent traction displacement includes the following steps: Step 1: Initial insertion of the drainage tube. Before the procedure, perform routine disinfection and cleaning of the patient's chest drainage site, ensuring the skin is dry and undamaged. Remove the device, check that the adhesive plate at the bottom of the base is firmly attached, and place the entire device next to the expected outlet of the drainage tube. Adjust the top structure of the base to align the protective shell and anti-traction buffer mechanism with the direction of the drainage tube. Remove the release paper from the bottom of the adhesive plate and securely attach the device to the patient's skin, pressing around the perimeter to ensure there are no air bubbles. Then, guide the chest drainage tube from the end leading out of the patient's wound through the tube insertion hole in the anti-traction buffer mechanism and the inner cavity of the protective shell, initially guiding it to the tube delivery area. During the tube insertion process, keep the drainage tube naturally extended, avoiding twisting or contact with sharp edges, and ensure that the tube smoothly enters the subsequent clamping area.

[0014] Step 2: The anti-pull buffer mechanism is activated. Based on the outer diameter of the drainage tube, the operator manually rotates the small throttle to drive the lead screw to feed through the internal thread of the adjustable lead screw cylinder. This causes the two triangular movable frames and the L-shaped frame to move in linkage. With the cooperation of the limit traction rod, the gap between the small rubber rollers is adjusted so that the rollers fit against the outer wall of the drainage tube without flattening the tube. This achieves the sliding delivery and limit fixation of drainage tubes of different diameters. Then, the anti-pull buffer mechanism is activated: a small hydraulic telescopic rod extends, eccentrically driving the first gear to rotate, which in turn drives the second and third gears to rotate. Through meshing with the rack, the anti-pull frame moves along the sliding groove toward the center of the tube hole, locking the drainage tube. The hydraulic telescopic rod absorbs the instantaneous pulling force, preventing the rigid transmission of external force to the drainage tube.

[0015] Step 3: Tighten the drainage tube clamping assembly. The operator triggers the pressing and clamping mechanism: the telescopic spring extends and retracts along the fixed column, driving the limit ring to move, and through the connecting arm, the pressing clamp swings towards the drainage tube to form a stable clamp. At the same time, the working status of the drainage tube clamping assembly is checked: the small return springs on the two L-shaped mounting plates push the clamping seats on the small guide rods to move closer together, so that the clamping groove adaptively fits the outer wall of the drainage tube, achieving stepless clamping and fixation. The operator should confirm that the drainage tube is not flattened, the clamping force is evenly distributed, and the tube can slide slightly between the small rubber rollers without jamming. After completing the above steps, the device is in a stable working state of anti-pull and adaptive clamping, which can effectively reduce the risk of drainage tube displacement, dislodgement, and complications.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a device and method for fixing a chest drainage tube to prevent traction displacement: 1. This device fixes the chest drainage tube and uses the extension and retraction of several sets of small hydraulic telescopic rods to drive the first gear to rotate eccentrically. The first gear meshes with the second gear, and when the second gear rotates, the third gear follows suit. This meshes with the rack inside the sliding groove through the meshing groove, thereby driving the anti-traction frame to lock and fix the drainage tube through the perforation hole. During this process, the hydraulic buffering characteristics of the small hydraulic telescopic rods can effectively absorb and disperse the instantaneous traction force generated by changes in patient position, coughing, etc., avoiding the direct rigid transmission of external force to the drainage tube, thus preventing the tube from being pulled out, broken, or dislodged. At the same time, the anti-traction frame and the perforation hole form a double limit, ensuring that the drainage tube can still maintain a stable position when accidentally pulled, significantly improving patient safety and comfort, and reducing the risk of complications such as pneumothorax and infection.

[0017] 2. This device, designed for drainage tubes of varying diameters, allows for sliding transport and positioning of drainage tubes by manually rotating a small handle to rotate the lead screw within the adjustable lead screw cylinder. This rotation pulls the triangular movable frame and the L-shaped frame, and, with the assistance of the limiting traction rod, adjusts the gap between the corresponding small rubber rollers. Simultaneously, the drainage tube clamping assembly includes an L-shaped mounting plate, a small guide rod, a small return spring, a clamping seat, and a clamping groove. During use, the small return springs on the two L-shaped mounting plates push the clamping seats on the small guide rod closer together. The clamping groove then adaptively engages and secures the drainage tubes of different diameters. This combination of mechanisms ensures secure clamping and prevents shaking or twisting of various sizes of chest drainage tubes commonly used in clinical practice, guaranteeing smooth drainage and significantly improving patient comfort. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is one of the structural schematic diagrams of the present invention; Figure 3 This is a schematic diagram of the drainage tube clamping assembly structure of the present invention; Figure 4 This is a schematic diagram of the pressing and clamping mechanism of the present invention; Figure 5 This is a schematic diagram of the tube feeding mechanism of the present invention; Figure 6 This is a schematic diagram of the anti-pull shell structure of the present invention; Figure 7 This is a schematic diagram of the anti-pulling buffer mechanism of the present invention; Figure 8 This is a schematic diagram of the sliding groove structure of the present invention.

[0019] In the diagram: 1. Base; 2. Anti-pull buffer mechanism; 201. Anti-pull housing; 202. Small hydraulic telescopic rod; 203. First gear; 204. Second gear; 205. Third gear; 206. Tripod; 207. Pipe hole; 208. Engaging groove; 209. Sliding groove; 2010. Anti-pull frame; 3. Protective shell; 4. Pipe feeding mechanism; 401. Adjustable movable screw cylinder; 402. Screw; 403. Triangular movable frame; 404. L-shaped frame; 405. Limiting pull rod; 406. Small rubber roller; 407. Small throttle handle; 5. Cavity; 6. Pressing and clamping mechanism; 601. Fixed frame; 602. Fixed column; 603. Telescopic spring; 604. Limiting ring; 605. Connecting arm; 606. Pressing gripper; 7. Drainage tube clamping assembly; 701. L-shaped mounting plate; 702. Miniature guide rod; 703. Miniature return spring; 704. Clamping seat; 705. Clamping groove; 8. Clipboard. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0022] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "configuration" should be interpreted broadly. For example, they can refer to a fixed connection or configuration, a detachable connection or configuration, or an integral connection or configuration. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] like Figures 1-8 As shown, the present invention proposes a chest drainage tube fixation device to prevent traction displacement, including a base 1, an anti-traction buffer mechanism 2 on the top of the base 1, a protective shell 3 on one side of the anti-traction buffer mechanism 2, a tube delivery mechanism 4 on one side of the protective shell 3, a cavity 5 inside the protective shell 3, a pressing and clamping mechanism 6 inside the cavity 5, and a drainage tube clamping assembly 7 on the other side of the protective shell 3.

[0025] The anti-pull buffer mechanism 2 includes an anti-pull housing 201 fixedly connected to one side of the protective housing 3 via a connecting column. The anti-pull housing 201 has several sets of small hydraulic telescopic rods 202 inside. One end of the small hydraulic telescopic rod 202 is eccentrically connected to one side of the first gear 203. Two second gears 204 are connected to the bottom end face of the first gear 203. A third gear 205 is fixedly connected to one side of the second gear 204. A tripod 206 is provided in the middle of the anti-pull housing 201. A through hole 207 is opened in the middle of the tripod 206. A meshing groove 208 is provided on the side of the tripod 206. A sliding groove 209 is opened on one side of the tripod 206. An anti-pull frame 2010 is slidably connected inside the sliding groove 209. Racks are provided on both sides of the anti-pull frame 2010.

[0026] In practical use, when fixing the chest drainage tube, the extension and retraction of several sets of small hydraulic telescopic rods 202 facilitate the eccentric rotation of the first gear 203, causing the first gear 203 to mesh and drive the second gear 204. This allows the third gear 205 to rotate simultaneously with the second gear 204, facilitating meshing and rotation of the rack inside the meshing groove 208 and sliding groove 209. This allows the rack to slide while simultaneously driving the anti-pull frame 2010 to engage and fix the drainage tube passing through the perforation hole 207, preventing slippage and movement during chest drainage.

[0027] The tube feeding mechanism 4 includes an adjustable movable screw cylinder 401 movably connected to the top of the protective shell 3. The adjustable movable screw cylinder 401 is internally threaded with a screw 402. Two triangular movable frames 403 and an L-shaped frame 404 are movably connected to one side of the protective shell 3. One end of one of the triangular movable frames 403 is movably connected to the screw 402. The bottom end of the triangular movable frame 403 and the top of the L-shaped frame 404 are movably connected to the top of the other triangular movable frame 403 through a limiting pull rod 405. A small rubber roller 406 is movably connected to one end of the L-shaped frame 404 and the two triangular movable frames 403. A small throttle 407 is provided on the top of the screw 402.

[0028] In practical use, depending on the thickness of the insertion and drainage tubes, the small handle 407 is manually turned to make the lead screw 402 rotate inside the adjusting movable lead screw cylinder 401, thereby pulling the bottom end of the adjusting triangular movable frame 403 and the L-shaped frame 404. During the pulling adjustment, the set limit pulling rod 405 facilitates the bottom end of the adjusting triangular movable frame 403 and the L-shaped frame 404 to drive the corresponding small rubber rollers 406 to slide and transport the drainage tubes of different thicknesses through the tubes, while also playing a limiting and fixing role.

[0029] The pressing and clamping mechanism 6 includes a fixed frame 601 fixedly connected to the top of the cavity 5, a fixed post 602 fixedly connected to the bottom of the fixed frame 601, a telescopic spring 603 sleeved on the outside of the fixed post 602, a limit ring 604 provided at the bottom of the telescopic spring 603, connecting arms 605 movably connected to both sides of the limit ring 604, a pressing gripper 606 movably connected to one end of the connecting arm 605, and one side of the pressing gripper 606 movably connected to the fixed post 602.

[0030] In practical use, when pressing and clamping the chest drainage tube, the elastic adjustment of the telescopic spring 603 on the outside of the fixing post 602 allows the telescopic spring 603 to easily drive the limiting ring 604 to adjust during the elastic extension and contraction process. When the limiting ring 604 extends and rises, it drives the connecting arms 605 on both sides, thereby driving the pressing clamp 606 to grip and fix the chest drainage tube.

[0031] The drainage tube clamping assembly 7 includes two L-shaped mounting plates 701 fixedly connected to one side of the bottom of the protective shell 3. Each L-shaped mounting plate 701 has a small guide rod 702 fixedly connected to its top and bottom. A small return spring 703 is inserted through the outer side of the small guide rod 702. A clamping seat 704 is fixedly connected to the top of the small return spring 703. A clamping groove 705 is provided in the middle of the clamping seat 704.

[0032] In practical use, when clamping the drainage tube, the small return springs 703 on the two L-shaped mounting plates 701 facilitate pushing the clamping seats 704 on the small guide rod 702 to move closer to each other, thereby facilitating the locking and fixing of chest drainage tubes of different diameters through the clamping grooves 705.

[0033] An adhesive plate 8 is fixedly connected to the bottom of the base 1.

[0034] In practical use, the anti-traction displacement chest drainage tube fixation device is attached to the patient's chest cavity using the adhesive plate 8.

[0035] A method for fixing a chest drainage tube to prevent traction displacement includes the following steps: Step 1: Initial insertion of the drainage tube. Before the procedure, perform routine disinfection and cleaning of the patient's chest drainage site to ensure the skin is dry and undamaged. Remove the device and check that the adhesive plate 8 at the bottom of the base 1 is firmly attached. Place the entire device next to the expected outlet of the drainage tube. Adjust the top structure of the base 1 to align the protective shell 3 and the anti-traction buffer mechanism 2 with the direction of the drainage tube. Remove the release paper from the bottom of the adhesive plate 8 and securely attach the device to the patient's skin, pressing around it to ensure there are no air bubbles. Then, guide the chest drainage tube from the end of the patient's wound through the tube insertion hole 207 in the anti-traction buffer mechanism 2 and the inner cavity 5 of the protective shell 3, and initially guide it to the area of ​​the tube delivery mechanism 4. During the tube insertion process, keep the drainage tube naturally extended and avoid twisting or contact with sharp edges to ensure that the tube smoothly enters the subsequent clamping area.

[0036] Step 2: The anti-pull buffer mechanism is activated. According to the outer diameter of the drainage tube, the operator manually rotates the small throttle 407, driving the lead screw 402 to feed through the internal thread of the adjusting movable lead screw cylinder 401. This causes the two triangular movable frames 403 and the L-shaped frame 404 to move in linkage. With the cooperation of the limiting pull rod 405, the gap between the small rubber rollers 406 is adjusted so that the rollers fit against the outer wall of the drainage tube without flattening the tube. This achieves the sliding delivery and limiting fixation of drainage tubes of different diameters. Then, the anti-pull buffer mechanism 2 is activated: the small hydraulic telescopic rod 202 extends and eccentrically drives the first gear 203 to rotate, which in turn drives the second gear 204 and the third gear 205 to rotate. Through meshing with the rack, the anti-pull frame 2010 moves along the sliding groove 209 toward the center of the through hole 207, locking the drainage tube. The hydraulic telescopic rod absorbs the instantaneous pulling force, preventing the rigid transmission of external force to the drainage tube.

[0037] Step 3: Tighten the drainage tube clamping assembly. When the operator triggers the pressing and clamping mechanism 6, the telescopic spring 603 extends and retracts along the fixed column 602, driving the limit ring 604 to move. Through the connecting arm 605, the pressing gripper 606 swings towards the drainage tube, forming a stable clamp. At the same time, the operator checks the working status of the drainage tube clamping assembly 7: the small return springs 703 on the two L-shaped mounting plates 701 push the clamping seats 704 on the small guide rod 702 to move closer together, so that the clamping groove 705 adaptively fits the outer wall of the drainage tube, achieving stepless clamping and fixing. The operator should confirm that the drainage tube is not flattened, the clamping force is evenly distributed, and the tube can slide slightly between the small rubber rollers 406 without jamming. After completing the above steps, the device is in a stable working state of anti-pull and adaptive clamping, which can effectively reduce the risk of drainage tube displacement, dislodgement, and complications.

[0038] Working principle: Step 1: Attaching the device Before using the anti-traction displacement chest drainage tube fixation device, the operator must first perform routine disinfection and cleaning of the patient's chest cavity to ensure that the skin in the bonding area is dry, free of grease, and undamaged. Then, remove the device and check whether the adhesive plate 8 at the bottom of the base 1 is intact, has good adhesion, and is free from contamination or failure.

[0039] The operator places the entire device at an appropriate position beside the expected puncture point of the patient's chest drainage tube, usually below or to the side of the drainage tube outlet, to avoid directly covering the wound. According to the patient's body shape and the direction of the drainage tube, the position of the sliding adjustment mechanism 8 at the top of the base 1 is adjusted so that the protective shell 3 and the anti-pulling buffer mechanism 2 are roughly aligned with the axis of the drainage tube. After confirming the position, the release paper on the bottom of the adhesive plate 8 is peeled off, and the device is firmly attached to the patient's skin surface. The operator then gently presses the adhesive plate 8 around its perimeter with their fingers to ensure that it is firmly attached and free of air bubbles.

[0040] Step 2: Insert the drainage tube. After the device is fixed, the operator needs to pass the end of the chest drainage tube from the patient's chest wound through the tube hole 207 in the anti-traction buffer mechanism 2 and the inner cavity 5 of the protective shell 3 in sequence, and initially guide it to the area of ​​the tube delivery mechanism 4. At this time, it should be ensured that the drainage tube is not clamped by any clamping parts, and that it is kept in a natural and relaxed state. It should not be forcibly twisted or bent. First, the operator opens or adjusts the position of the tripod 206 so that it is located in the middle of the anti-pull housing 201, ensuring that the pipe hole 207 is aligned with the inlet direction of the drainage pipe. The front end of the drainage pipe is gently inserted into the pipe hole 207 so that it enters the interior of the anti-pull housing 201. At this time, the anti-pull bracket 2010 has not yet come into contact with the drainage pipe and is in the initial open state, which facilitates the smooth passage of the pipeline. Next, the drainage tube continues to enter the cavity 5 on one side of the protective shell 3. The operator can confirm the direction of the tube through the observation window of the protective shell 3 or with the help of an auxiliary light source. The drainage tube should extend naturally along the internal channel of the cavity 5 to the area of ​​the pressing and clamping mechanism 6. During the initial tube insertion process, care should be taken to avoid the surface of the drainage tube being scratched by sharp edges or burrs, and at the same time, care should be taken to avoid abnormal interference with other mechanical components.

[0041] Operation Step 3: Adjustment of the pipe feeding mechanism To accommodate different pipe diameters, operators need to use the pipe feeding mechanism 4 for active adjustment to ensure that the drainage pipe is properly guided and fixed in place; The operator manually rotates the small handle 407 located on the top of the lead screw 402 clockwise or counterclockwise, causing the lead screw 402 to perform threaded feed motion inside the adjusting movable lead screw cylinder 401. The linear motion of the lead screw 402 will drive the triangular movable frame 403 and the L-shaped frame 404 to move in linkage. During this process, the limiting pull rod 405 plays the role of synchronous adjustment and motion limit, ensuring that the two triangular movable frames 403 and the L-shaped frame 404 maintain coordinated movement. As the positions of the triangular movable frame 403 and the L-shaped frame 404 change, the relative distance between the small rubber rollers 406 connected to their ends also changes. The operator should rotate the small handle 407 while observing the contact state between the drainage tube and the small rubber rollers 406 until the rollers and the surface of the drainage tube form a slight contact but do not flatten the tube. After adjustment, the operator should gently pull the drainage tube to ensure that it can slide smoothly between the small rubber rollers 406, avoiding clamping too tightly to affect drainage or clamping too loosely to lose the fixing effect.

[0042] Step 4: The anti-pull buffer mechanism is activated. To prevent sudden traction on the drainage tube when the patient coughs, turns over, or changes position, the operator needs to activate the anti-traction buffer mechanism 2 to achieve elastic locking and buffer fixation of the drainage tube; The anti-pull housing 201 is equipped with several sets of small hydraulic telescopic rods 202. When the small hydraulic telescopic rods 202 are activated, their piston rods extend according to a predetermined stroke. Since one end of the small hydraulic telescopic rod 202 is eccentrically connected to one side of the first gear 203, the linear motion of the telescopic rod will be converted into the eccentric rotational motion of the first gear 203. When the first gear 203 rotates, the two second gears 204 meshing with it rotate synchronously, and each second gear 204 drives the coaxially fixed third gear 205 to rotate. The third gear 205 meshes with the racks set on both sides of the anti-pull frame 2010. The racks are located in the meshing groove 208 and the sliding groove 209 respectively. As the third gear 205 rotates, the racks drive the anti-pull frame 2010 to move along the sliding groove 209 towards the center of the through hole 207, and gradually engage with the outer wall of the drainage tube. If the drainage tube is accidentally pulled, the hydraulic oil in the small hydraulic telescopic rod 202 will generate a damping effect, absorb the impact energy, and prevent the rigid traction force from being directly transmitted to the drainage tube or the patient's wound.

[0043] Step 5: Tighten the drainage tube clamping assembly. The operator can gently press or activate the telescopic spring 603 inside the fixed frame 601 by hand or through an external triggering structure. The telescopic spring 603 is sleeved on the outside of the fixed column 602. Its elastic extension and contraction drive the limiting ring 604 to move axially along the fixed column 602. Connecting arms 605 are movably connected to both sides of the limiting ring 604. The connecting arms 605 are then movably connected to the pressing clamp 606. When the limiting ring 604 descends, the connecting arms 605 push the pressing clamp 606 to swing towards the drainage tube, and finally clamp it at an appropriate position on the outer wall of the drainage tube to form a stable clamp. Meanwhile, the operator needs to check the working status of the drainage tube clamping assembly 7. This assembly includes two L-shaped mounting plates 701, which are fixed to the bottom sides of the protective shell 3 respectively. Each L-shaped mounting plate 701 has a small guide rod 702 fixed to its top and bottom. A small return spring 703 is sleeved on the guide rod. Two clamping seats 704 are respectively installed on the top of the corresponding small return spring 703. A clamping groove 705 is formed in the middle of the clamping seat 704. Under the elastic push of the small return spring 703, the two clamping seats 704 move closer together, and the clamping groove 705 adaptively fits the outer wall of the drainage tube, achieving stepless locking and fixing. Operators should observe the posture of the drainage tube in the clamping groove 705 to ensure that the tube is not flattened and that the clamping force is evenly distributed. If the drainage tube is too thick or too thin, the preload of the small reset spring 703 can be adjusted appropriately or a clamping seat 704 of a different specification can be replaced.

[0044] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0045] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A chest drainage tube fixation device to prevent traction displacement, comprising a base (1), characterized in that, The base (1) is provided with an anti-pulling buffer mechanism (2) at the top, a protective shell (3) is provided on one side of the anti-pulling buffer mechanism (2), a tube feeding mechanism (4) is provided on one side of the protective shell (3), a cavity (5) is provided inside the protective shell (3), a pressing and clamping mechanism (6) is provided inside the cavity (5), and a drainage tube clamping assembly (7) is provided on the other side of the protective shell (3).

2. The anti-traction displacement chest drainage tube fixation device according to claim 1, characterized in that: The anti-pulling buffer mechanism (2) includes an anti-pulling housing (201) fixedly connected to one side of the protective housing (3) via a connecting column. The anti-pulling housing (201) contains several sets of small hydraulic telescopic rods (202). One end of each small hydraulic telescopic rod (202) is eccentrically connected to one side of a first gear (203). Two second gears (204) are internally connected between the bottom ends of the first gear (203). One side of each second gear (204) is fixedly connected to... A third gear (205) is provided. A tripod (206) is provided in the middle of the anti-pull housing (201). A through hole (207) is opened in the middle of the tripod (206). A meshing groove (208) is provided on the side of the tripod (206). A sliding groove (209) is opened on one side of the tripod (206). An anti-pull frame (2010) is slidably connected inside the sliding groove (209). Racks are provided on both sides of the anti-pull frame (2010).

3. The anti-traction displacement chest drainage tube fixation device according to claim 1, characterized in that: The tube feeding mechanism (4) includes an adjustable movable screw cylinder (401) movably connected to the top of the protective shell (3). The adjustable movable screw cylinder (401) is internally threaded with a screw (402). Two triangular movable frames (403) and an L-shaped frame (404) are movably connected to one side of the protective shell (3). One end of one of the triangular movable frames (403) is movably connected to the screw (402). The bottom end of the triangular movable frame (403) and the top of the L-shaped frame (404) are movably connected to the top of the other triangular movable frame (403) through a limiting pull rod (405).

4. The anti-traction displacement chest drainage tube fixation device according to claim 3, characterized in that: The L-shaped frame (404) and the two triangular movable frames (403) are movably connected at one end to small rubber rollers (406), and a small throttle (407) is provided on the top of the lead screw (402).

5. A chest drainage tube fixation device for preventing traction displacement according to claim 1, characterized in that: The pressing and clamping mechanism (6) includes a fixed frame (601) fixedly connected to the top of the cavity (5), a fixed column (602) fixedly connected to the bottom of the fixed frame (601), a telescopic spring (603) sleeved on the outside of the fixed column (602), a limit ring (604) provided on the four parts of the telescopic spring (603), a connecting arm (605) movably connected to both sides of the limit ring (604), a pressing gripper (606) movably connected to one end of the connecting arm (605), and one side of the pressing gripper (606) movably connected to the fixed column (602).

6. The chest drainage tube fixation device for preventing traction displacement according to claim 1, characterized in that: The drainage tube clamping assembly (7) includes two L-shaped mounting plates (701) fixedly connected to one side of the bottom of the protective shell (3). Each L-shaped mounting plate (701) has a small guide rod (702) fixedly connected to its top and bottom. A small return spring (703) is inserted through the outside of the small guide rod (702). A clamping seat (704) is fixedly connected to the top of the small return spring (703). A clamping groove (705) is provided in the middle of the clamping seat (704).

7. A chest drainage tube fixation device for preventing traction displacement according to claim 1, characterized in that: The bottom end of the base (1) is fixedly connected to an adhesive plate (8).

8. A method for fixing a chest drainage tube to prevent traction displacement, comprising the chest drainage tube fixing device for preventing traction displacement as described in claims 1-7, characterized in that, Includes the following steps: Step 1: Initial insertion of the drainage tube. Before operation, perform routine disinfection and cleaning of the patient's chest drainage site to ensure that the skin is dry and undamaged. Take out the device and check that the adhesive plate (8) at the bottom of the base (1) is sticky. Place the device as a whole next to the expected outlet of the chest drainage tube. Adjust the top structure of the base (1) so that the protective shell (3) and the anti-pulling buffer mechanism (2) are aligned with the direction of the drainage tube. Remove the release paper on the bottom of the adhesive plate (8) and firmly stick the device to the patient's skin. Press around to ensure that there are no air bubbles. Then, pass the chest drainage tube from the end of the patient's wound through the tube hole (207) in the anti-pulling buffer mechanism (2), the protective shell (3), and the internal cavity (5) in sequence, and initially guide it to the area of ​​the tube delivery mechanism (4). During the tube insertion process, keep the drainage tube naturally extended and avoid twisting or contact with sharp edges to ensure that the tube smoothly enters the subsequent clamping area. Step 2: The anti-pull buffer mechanism is activated. According to the outer diameter of the chest drainage tube, the operator manually rotates the small throttle (407) to drive the screw (402) to feed in the internal thread of the adjusting movable screw cylinder (401), which drives the two triangular movable frames (403) and the L-shaped frame (404) to move in linkage. With the cooperation of the limiting traction rod (405), the gap between the small rubber rollers (406) is adjusted so that the rollers fit against the outer wall of the chest drainage tube without flattening the tube, realizing the sliding delivery and limiting fixation of drainage tubes of different diameters. Then, the anti-traction buffer mechanism (2) is activated, the small hydraulic telescopic rod (202) extends, and the first gear (203) is eccentrically driven to rotate, which in turn drives the second gear (204) and the third gear (205) to rotate in sequence. By meshing with the rack, the anti-traction frame (2010) moves along the sliding groove (209) towards the center of the tube hole (207), locking the drainage tube. The hydraulic telescopic rod absorbs the instantaneous traction force and avoids the rigid transmission of external force to the drainage tube. Step 3: Tighten the drainage tube clamping assembly. When the operator triggers the pressing and clamping mechanism (6): the telescopic spring (603) extends and retracts along the fixed column (602), driving the limit ring (604) to move. Through the connecting arm (605), the pressing gripper (606) is driven to swing towards the drainage tube, forming a stable clamp. At the same time, the working status of the drainage tube clamping assembly (7) is checked. The small reset springs (703) on the two L-shaped mounting plates (701) push the clamping seats (704) on the small guide rod (702) to move closer to each other, so that the clamping groove (705) adaptively fits the outer wall of the drainage tube, realizing stepless clamping and fixing. The operator should confirm that the drainage tube is not flattened, the clamping force is evenly distributed, and the tube can slide slightly between the small rubber rollers (406) without jamming. After completing the above steps, the device is in a stable working state of anti-pull and adaptive clamping, which can effectively reduce the risk of drainage tube displacement, tube dislodgement and complications.

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