Anti-blocking thoracic surgery drainage device

Abstract

The utility model discloses an anti-blocking thoracic surgery drainage device, and relates to the technical field of thoracic surgery. The anti-blocking thoracic surgery drainage device comprises a base, the top of the base is fixedly connected with a second fixing cylinder, the outer surface of the second fixing cylinder is sleeved with a sliding sleeve in a sliding mode, the sliding sleeve is provided with a fixing mechanism, the fixing mechanism is provided with a drainage bottle, the interior of the second fixing cylinder is hollow, and when the second fixing cylinder is adjusted to a proper position, the drainage bottle is inserted into the second fixing cylinder. When the displacement rod moves, the sliding sleeve is driven to synchronously move through the U-shaped frame, the sliding sleeve drives the drainage bottle to move to a proper position, and then the drainage bottle is fixed. Through the mode, the height of the drainage bottle corresponding to the body of a patient can be adjusted according to the height of the patient, the influence on the drainage efficiency is avoided as much as possible, and the applicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thoracic surgery, in particular to an anti-blocking thoracic surgery drainage device. Background Art

[0002] Closed chest drainage is to place one end of the drainage tube into the chest cavity, and connect the other end to a water-sealed bottle at a lower position, so as to discharge gas or collect fluid in the chest cavity, so that the lung tissue can reopen and restore function. As a treatment method, it is widely used in the drainage of hemothorax, pneumothorax, empyema and after thoracotomy, and plays a very important role in the treatment of diseases;

[0003] After consulting relevant technical documents, such as the publication number: CN218474759U, a thoracic surgery anti-blockage drainage device, including a drainage bottle, the drainage bottle is connected to a drainage tube, the bottom of the drainage bottle is provided with a fixing platform, the fixing platform is installed with a support rod, one side of the support rod is provided with a fixing piece for connecting and fixing the drainage bottle to a bed, and one side of the support rod is provided with a guide limiter for preventing the drainage tube from bending and fixing it;

[0004] Although the above technology solves the problem that the clamping block can be clamped and fixed to the bed leg by the setting of the fixing parts, the drainage bottle can be fixed on one side of the bed, and the drainage bottle cannot be touched if it is accidentally touched. When in use, the position of the drainage tube can be limited to reduce the problem of internal fluid blockage caused by bending of the drainage tube. However, in actual use, there is still a problem that since the support rod in the device is of a fixed height, when the patient gets up and walks upright, the position of the drainage bottle in the drainage device should be kept below the waist as much as possible. However, due to the uncertain height of the patient, the height of the drainage bottle relative to the body may not be adjusted, which may reduce the drainage efficiency. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an anti-clogging thoracic surgical drainage device, which can solve the problem that since the support rod in the device has a fixed height, when the patient gets up and walks upright, the position of the drainage bottle in the drainage device should be kept below the waist as much as possible, but since the height of the patient is uncertain, the height of the drainage bottle relative to the body may not be adjusted, which may reduce the drainage efficiency.

[0006] To achieve the above object, the present utility model provides the following technical solutions: An anti-blocking thoracic surgery drainage device, including a base, a second fixed cylinder is fixedly connected to the top of the base, a sliding sleeve is slidably sleeved on the outer surface of the second fixed cylinder, a fixing mechanism is arranged on the sliding sleeve, a drainage bottle is arranged on the fixing mechanism, the inside of the second fixed cylinder is hollow, a displacement rod is arranged at the top of the second fixed cylinder, an L-shaped frame is arranged on the left side of the displacement rod, the cross bar of the L-shaped frame is fixedly connected to the left surface of the displacement rod near the displacement rod, and the bottom of the vertical rod of the L-shaped frame is fixedly connected to the top surface of the sliding sleeve. The inside of the displacement rod is hollow, a hand-holding groove is formed on the displacement rod, an unlocking mechanism is arranged in the hand-holding groove, a U-shaped frame is slidably connected inside the displacement rod, the two vertical rods of the U-shaped frame are arranged upwards, two groups of reset mechanisms are arranged on the U-shaped frame, the bottom surface of the cross bar of the U-shaped frame is fixedly connected to a connecting rod, a fixed block is fixedly connected between the opposite inner walls of the displacement rod, a limiting groove is formed on the fixed block, the side of the connecting rod away from the U-shaped frame extends into the limiting groove and slides in the limiting groove. Two sliding grooves are formed on the fixed block, and the two sliding grooves are respectively arranged on the front and rear sides of the limiting groove. A slider is slidably connected in the sliding groove. Two rotating rods are respectively rotatably connected between the connecting rod and the two sliders. Two sliding blocks are arranged at the bottom of the fixed block, and the two sliding blocks are respectively arranged on the front and rear sides of the connecting rod. The bottom of the slider extends out of the sliding groove and is fixedly connected to the top of the sliding block. Grooves matching the sliding blocks are formed on the front and rear inner walls of the second fixed cylinder. The opposite sides of the two sliding blocks slide through the inside of the displacement rod and extend into the same-side groove.

[0007] Preferably, the unlocking mechanism includes a pulling rod, the pulling rod is arranged in the hand-holding groove and the front and rear ends are aligned with the front and rear inner walls of the hand-holding groove. Limiting plates are fixedly sleeved on the outer surfaces of the front and rear ends of the pulling rod. The farthest sides of the two limiting plates are in contact with the inside of the hand-holding groove. The cross sections of the opposite sides of the two limiting plates are arc-shaped.

[0008] Preferably, communication grooves are formed on the front and rear inner walls of the hand-holding groove. The two vertical rods of the U-shaped frame respectively slide through the communication grooves. The two ends of the pulling rod respectively extend into the two communication grooves and are fixedly connected to the vertical rods of the U-shaped frame.

[0009] Preferably, the two groups of reset mechanisms include fixed rods. The fixed rods are arranged on the U-shaped frame. The lower ends of the two fixed rods respectively slide through the lower surface of the U-shaped frame. The two fixed rods are respectively arranged on the front and rear sides of the connecting rod. The ends of the fixed rods located at the top of the cross bar of the U-shaped frame are fixedly connected to the top wall of the displacement rod.

[0010] Preferably, a protection block is fixedly connected to the end of the fixed rod located at the bottom of the cross bar of the U-shaped frame. A spring is fixedly connected between the top of the protection block and the U-shaped frame. The spring is movably sleeved on the outside of the fixed rod.

[0011] Preferably, a mounting frame is fixedly connected to the front side of the fixing cylinder, a clamping mechanism is provided on the mounting frame, and a fixing cylinder is fixedly connected to the top of the mounting frame.

[0012] Preferably, a fixing plate is fixedly connected to the front surface of the displacement rod, a bottom of the fixing plate is fixedly connected to the displacement rod, and the other side of the displacement rod slides through the interior of the fixing tube.

[0013] Preferably, the movable rod and the fixed cylinder are both provided with limiting mechanisms, the interior of the fixed cylinder is slidably connected with a second limiting plate, and one side of the movable rod located in the fixed cylinder is fixedly connected to the top surface of the second limiting plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) When the anti-blockage thoracic surgical drainage device is adjusted to a suitable position, the unlocking mechanism is restored, so that the reset mechanism drives the connecting rod to move downward, so that the two sliding blocks are synchronously moved away from the horizontal direction and enter the groove to fix the height of the displacement rod. When the displacement rod moves, the sliding sleeve is driven to move synchronously through the molded frame, and the sliding sleeve drives the height of the drainage bottle to move to a suitable position. Through the above method, the height of the drainage bottle relative to the patient's body can be adjusted according to the patient's height, thereby minimizing the influence on the drainage efficiency and improving the applicability of the device.

[0016] (2) In the anti-blockage thoracic surgical drainage device, when the pulling rod drives the profile frame to move upward, the profile frame moves upward along the fixed rod and causes the spring to be stretched. When the height of the displacement rod is adjusted to a suitable position, the pulling rod is released, the spring contracts, and the profile frame is reset. The fixed rod and the protective block restrict the profile frame to prevent the profile frame from shifting and falling. In the above manner, the stability of the device during use can be improved, and the practicality of the device can be maximized. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the overall structure of an anti-clogging chest surgical drainage device of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the overall structure of an anti-clogging chest surgical drainage device of the utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0022] Figure 5 This is a schematic diagram of the connecting rod connection structure of the utility model.

[0023] Figure numerals: 1. base; 2. mounting frame; 3. fixed cylinder; 4. limiting mechanism; 5. moving rod; 6. fixed plate; 7. pulling rod; 8. L-shaped frame; 9. limiting plate; 10. protective block; 11. displacement rod; 12. second fixed cylinder; 13. fixed rod; 14. connecting rod; 15. second limiting plate; 16. rotating rod; 17. sliding block; 18. connecting groove; 19. limiting groove; 20. fixed block; 21. sliding block; 22. sliding groove; 23. groove; 24. L-shaped frame; 25. sliding sleeve; 26. spring. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] See also Figure 1-5, the present utility model provides a technical solution: an anti-clogging thoracic surgery drainage device, including a base 1. A second fixed cylinder 12 is fixedly connected to the top of the base 1. A sliding sleeve 25 is slidably sleeved on the outer surface of the second fixed cylinder 12. A fixing mechanism is provided on the sliding sleeve 25. The fixing mechanism is an existing structure in the existing patent: CN218474759U, and will not be elaborated here. A drainage bottle is provided on the fixing mechanism. The inside of the second fixed cylinder 12 is hollow. A displacement rod 11 is provided at the top of the second fixed cylinder 12. An L-shaped frame 24 is provided on the left side of the displacement rod 11. The side of the cross bar of the L-shaped frame 24 close to the displacement rod 11 is fixedly connected to the left surface of the displacement rod 11. The bottom of the vertical rod of the L-shaped frame 24 is fixedly connected to the top surface of the sliding sleeve 25. The inside of the displacement rod 11 is hollow. A hand-holding groove is provided on the displacement rod 11. An unlocking mechanism is provided in the hand-holding groove. A U-shaped frame 8 is slidably connected inside the displacement rod 11. The two vertical rods of the U-shaped frame 8 are arranged upwards. Two reset mechanisms are provided on the U-shaped frame 8. A connecting rod 14 is fixedly connected to the bottom surface of the cross bar of the U-shaped frame 8. A fixing block 20 is fixedly connected between the opposite inner walls of the displacement rod 11. A limiting groove 19 is provided on the fixing block 20. The side of the connecting rod 14 away from the U-shaped frame 8 extends into the limiting groove 19 and slides in the limiting groove 19. Two sliding grooves 22 are provided on the fixing block 20. The two sliding grooves 22 are respectively arranged on the front and rear sides of the limiting groove 19. A slider 21 is slidably connected in the sliding groove 22. Two rotating rods 16 are respectively rotatably connected between the connecting rod 14 and the two sliders 21. Two sliding blocks 17 are provided at the bottom of the fixing block 20. The two sliding blocks 17 are respectively arranged on the front and rear sides of the connecting rod 14. The bottom of the slider 21 extends out of the sliding groove 22 and is fixedly connected to the top of the sliding block 17. Grooves 23 matching the sliding blocks 17 are provided on the front and rear inner walls of the second fixed cylinder 12. The opposite sides of the two sliding blocks 17 slide through the inside of the displacement rod 11 and extend into the grooves 23 on the same side. When it is necessary to adjust the height of the drainage bottle corresponding to the patient's body, the unlocking mechanism is contacted, and then the U-shaped frame 8 is moved to the top of the displacement rod 11, driving the connecting rod 14 to move synchronously. When the connecting rod 14 moves, it drives the two rotating rods 16 to make the two sliders 21 move horizontally towards each other, and the sliders 21 drive the two sliding blocks 17 to move synchronously. When moving to a suitable position, the two sliding blocks 17 fall off the grooves 23, and then the height of the displacement rod 11 at the top of the second fixed cylinder 12 can be adjusted. When adjusted to a suitable position, the unlocking mechanism is restored, and the reset mechanism is used to drive the connecting rod 14 to move downward, so that the two sliding blocks 17 synchronously move away horizontally and enter the grooves 23 to fix the height of the displacement rod 11. When the displacement rod 11 moves, the sliding sleeve 25 is driven to move synchronously through the U-shaped frame 8, and the sliding sleeve 25 drives the height of the drainage bottle to move to a suitable position.

[0029] Further, the unlocking mechanism includes a pulling rod 7 which is arranged in the hand-holding groove and whose front and rear ends are aligned with the inner walls of the front and rear sides of the hand-holding groove. Limiting plates 9 are fixedly sleeved on the outer surfaces of the front and rear ends of the pulling rod 7. The outermost sides of the two limiting plates 9 are in contact with the interior of the hand-holding groove, and the cross-sections of the sides of the two limiting plates 9 facing each other are arc-shaped.

[0030] Further, communication grooves 18 are formed in the inner walls of the front and rear sides of the hand-holding groove. The two vertical rods of the U-shaped frame 8 respectively slide through the communication grooves 18. The two ends of the pulling rod 7 respectively extend into the two communication grooves 18 and are fixedly connected to the vertical rods of the U-shaped frame 8. When the patient holds the hand-holding groove with the hand, the fingers hook downward on the pulling rod 7 and move the pulling rod 7 upward. The two ends of the pulling rod 7 move upward synchronously in the communication grooves 18 on the same side and drive the U-shaped frame 8 to move upward synchronously. During the movement, the two groups of limiting plates 9 and the U-shaped frame 8 limit the position of the pulling rod 7.

[0031] Further, the two groups of reset mechanisms include fixing rods 13 which are arranged on the U-shaped frame 8. The lower ends of the two fixing rods 13 respectively slide through the lower surface of the U-shaped frame 8. The two fixing rods 13 are respectively arranged on the front and rear sides of the connecting rod 14. The end of the fixing rod 13 located at the top of the cross-bar of the U-shaped frame 8 is fixedly connected to the top wall of the displacement rod 11.

[0032] Further, a protection block 10 is fixedly connected to the end of the fixing rod 13 located at the bottom of the cross-bar of the U-shaped frame 8. A spring 26 is fixedly connected between the top of the protection block 10 and the U-shaped frame 8. The spring 26 is movably sleeved on the outside of the fixing rod 13. When the pulling rod 7 drives the U-shaped frame 8 to move upward, the U-shaped frame 8 moves upward along the fixing rod 13 and stretches the spring 26. When the height of the displacement rod 11 is adjusted to a suitable position, the pulling rod 7 is released, and the spring 26 contracts to reset the U-shaped frame 8. The fixing rod 13 and the protection block 10 limit the U-shaped frame 8 to prevent the U-shaped frame 8 from moving offset or falling.

[0033] Further, an installation frame 2 is fixedly connected to the front side of the fixed cylinder 3. A clamping mechanism is arranged on the installation frame 2. The clamping mechanism is the existing structure in the existing patent: CN218474759U and will not be elaborated here too much. The top of the installation frame 2 is fixedly connected to the fixed cylinder 3.

[0034] Furthermore, the front side surface of the displacement rod 11 is fixedly connected with a fixing plate 6, the bottom of the fixing plate 6 is fixedly connected with a moving rod 5, the other side of the moving rod 5 slides through the interior of the fixed tube 3, and a limiting mechanism is provided on the moving rod 5 and the fixed tube 3. The limiting mechanism is the existing structure of D in the existing patent: CN218474759U, which will not be described in detail here. The interior of the fixed tube 3 is slidably connected with a second limiting plate 15, and one side of the moving rod 5 located in the fixed tube 3 is fixedly connected with the top surface of the second limiting plate 15. When the displacement rod 11 moves upward, it drives the moving rod 5 to slide synchronously out of the fixed tube 3 to increase the distance, and the second limiting plate 15 limits the moving rod 5 to prevent the moving rod 5 from completely separating from the fixed tube 3. The limiting mechanism can limit the drainage tube to prevent the drainage tube from bending, and the clamping mechanism can fix the device to the bed leg to prevent the patient or doctor from kicking over the drainage bottle.

[0035] Working principle: when it is necessary to adjust the height of the drainage bottle relative to the patient's body, the unlocking mechanism is contacted, and then the top of the displacement rod 11 of the molded frame 8 is moved first, driving the connecting rod 14 to move synchronously. When the connecting rod 14 moves, it drives the two rotating rods 16 to make the two sliders 21 move horizontally towards each other, and the slider 21 drives the two sliding blocks 17 to move synchronously. When moving to the appropriate position, the two sliding blocks 17 fall off the groove 23, and then the height of the displacement rod 11 at the top of the second fixed tube 12 can be adjusted. When adjusted to the appropriate position, the unlocking mechanism is restored, and the reset mechanism is used to drive the connecting rod 14 to move downward, so that the two sliding blocks 17 move away horizontally synchronously and enter the groove 23 to fix the height of the displacement rod 11. When the displacement rod 11 moves, the sliding sleeve 25 is driven to move synchronously through the molded frame 8, and the sliding sleeve 25 drives the height of the drainage bottle to move to the appropriate position. When the patient grabs the hand grip groove, the fingers hook the pulling rod 7 downward and pull it. The rod 7 moves upward, and the two ends of the pull rod 7 move upward synchronously in the connecting groove 18 on the same side, and drive the mold frame 8 to move upward synchronously. During the movement, the two sets of limit plates 9 and the mold frame 8 limit the position of the pull rod 7. When the pull rod 7 drives the mold frame 8 to move upward, the mold frame 8 moves upward along the fixed rod 13 and stretches the spring 26. When the displacement rod 11 is adjusted to a suitable position, the pull rod 7 is released, the spring 26 contracts, the mold frame 8 is reset, and the fixed rod 13 is fixed. The protective block 10 limits the molded frame 8 to prevent the molded frame 8 from shifting and falling. When the displacement rod 11 moves upward, it drives the moving rod 5 to slide out of the fixed tube 3 synchronously to increase the distance. The second limit plate 15 limits the moving rod 5 to prevent the moving rod 5 from completely separating from the fixed tube 3. The limiting mechanism can limit the drainage tube to prevent the drainage tube from bending. The clamping mechanism can fix the device to the bed leg to prevent the patient or doctor from kicking over the drainage bottle.

[0036] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An anti-clogging thoracic surgical drainage device, comprising a base (1), characterized in that: A second fixed cylinder (12) is fixedly connected to the top of the base (1). A sliding sleeve (25) is slidably sleeved on the outer surface of the second fixed cylinder (12). A fixing mechanism is arranged on the sliding sleeve (25), and a drainage bottle is arranged on the fixing mechanism. The inside of the second fixed cylinder (12) is hollow. A displacement rod (11) is arranged at the top of the second fixed cylinder (12). An L-shaped frame (24) is arranged on the left side of the displacement rod (11). The side of the horizontal bar of the L-shaped frame (24) close to the displacement rod (11) is fixedly connected to the left surface of the displacement rod (11). The bottom of the vertical bar of the L-shaped frame (24) is fixedly connected to the top surface of the sliding sleeve (25). The inside of the displacement rod (11) is hollow. A hand-holding groove is formed in the displacement rod (11). An unlocking mechanism is arranged in the hand-holding groove. A U-shaped frame (8) is slidably connected in the displacement rod (11). The two vertical bars of the U-shaped frame (8) are arranged upward. Two reset mechanisms are arranged on the U-shaped frame (8). A connecting rod (14) is fixedly connected to the bottom surface of the horizontal bar of the U-shaped frame (8). A fixing block (20) is fixedly connected between the opposite inner walls of the displacement rod (11). A limiting groove (19) is formed in the fixing block (20). The side of the connecting rod (14) away from the U-shaped frame (8) extends into the limiting groove (19) and slides in the limiting groove (19). Two sliding grooves (22) are formed in the fixing block (20). The two sliding grooves (22) are respectively arranged on the front and rear sides of the limiting groove (19). A slider (21) is slidably connected in the sliding groove (22). Two rotating rods (16) are respectively rotatably connected between the connecting rod (14) and the two sliders (21). Two sliding blocks (17) are arranged at the bottom of the fixing block (20). The two sliding blocks (17) are respectively arranged on the front and rear sides of the connecting rod (14). The bottom of the slider (21) extends out of the sliding groove (22) and is fixedly connected to the top of the sliding block (17). Grooves (23) matching the sliding blocks (17) are formed on the front and rear inner walls of the second fixed cylinder (12). The opposite sides of the two sliding blocks (17) respectively slide through the inside of the displacement rod (11) and extend into the grooves (23) on the same side.

2. The anti-blockage thoracic surgical drainage device according to claim 1, characterized in that: The unlocking mechanism includes a pulling rod (7). The pulling rod (7) is arranged in the hand-holding groove and the front and rear ends are aligned with the front and rear inner walls of the hand-holding groove. Limiting plates (9) are fixedly sleeved on the outer surfaces of the front and rear ends of the pulling rod (7). The farthest sides of the two limiting plates (9) are in contact with the inside of the hand-holding groove. The cross-sections of the sides of the two limiting plates (9) facing each other are arc-shaped.

3. The anti-blockage thoracic surgical drainage device according to claim 2, characterized in that: Communication grooves (18) are formed on the front and rear inner walls of the hand-holding groove. The two vertical bars of the U-shaped frame (8) respectively slide through the communication grooves (18). The two ends of the pulling rod (7) respectively extend into the two communication grooves (18) and are fixedly connected to the vertical bars of the U-shaped frame (8).

4. The anti-clogging thoracic surgical drainage device according to claim 1, characterized in that: The two groups of reset mechanisms include fixed rods (13), which are arranged on the shaped frame (8). The lower ends of the two fixed rods (13) slide through the lower surface of the shaped frame (8). The two fixed rods (13) are respectively arranged on the front and rear sides of the connecting rod (14). One end of the fixed rod (13) located at the top of the horizontal plate of the shaped frame (8) is fixedly connected to the top wall of the displacement rod (11).

5. The anti-blockage thoracic surgical drainage device according to claim 4, characterized in that: One end of the fixing rod (13) located at the bottom of the cross bar of the shaped frame (8) is fixedly connected to a protection block (10), and a spring (26) is fixedly connected between the top of the protection block (10) and the shaped frame (8), and the spring (26) is movably sleeved on the outside of the fixing rod (13).

6. The anti-blockage thoracic surgical drainage device according to claim 5, characterized in that: The front side of the fixed cylinder (3) is fixedly connected to a mounting frame (2), a clamping mechanism is provided on the mounting frame (2), and the top of the mounting frame (2) is fixedly connected to the fixed cylinder (3).

7. The anti-clogging thoracic surgical drainage device according to claim 6, characterized in that: The front surface of the displacement rod (11) is fixedly connected to a fixing plate (6), the bottom of the fixing plate (6) is fixedly connected to a moving rod (5), and the other side of the moving rod (5) slides through the interior of the fixing cylinder (3).

8. The anti-blockage thoracic surgical drainage device according to claim 7, characterized in that: The movable rod (5) and the fixed cylinder (3) are both provided with limiting mechanisms, the interior of the fixed cylinder (3) is slidably connected to a second limiting plate (15), and one side of the movable rod (5) located inside the fixed cylinder (3) is fixedly connected to the top surface of the second limiting plate (15).

Images