Stay wire type auxiliary device applied to tube drawing of internal fixation drainage tube

Abstract

The stay wire type auxiliary device comprises a tube body and an operation table, the tube body comprises a curled part and a straight part, the curled part is made of a deformation material and connected to the straight part, the curled part is provided with a liquid inlet hole, the straight part is connected with one end of the operation table, an auxiliary straight rod penetrates through the operation table, and the auxiliary straight rod is connected with the operation table. The operating table is provided with a connecting piece for limiting the movement of the auxiliary straight rod and a fixing assembly, the fixing assembly comprises a take-up barrel, a fixing wire, an operating block, a pull wire, a coil spring and a connecting column, the connecting column is arranged in the curling part, a fixing shaft is connected in the operating table, the take-up barrel is sleeved with the fixing shaft, and the coil spring is connected between the fixing shaft and the take-up barrel; the fixing wire is arranged on the connecting column in a sleeving mode and connected with the take-up barrel, a limiting assembly is arranged on the operation table, the operation block slides on the operation table, the pull wire is connected to the connecting column and connected with the operation block, and a stabilizing assembly for limiting movement of the operation block is arranged on the operation table. The internal fixation drainage tube has the effect of improving the applicability of the internal fixation drainage tube.

Description

Technical Field

[0001] This application relates to the field of drainage tube technology, and in particular to a pull-wire auxiliary device for removing internally fixed drainage tubes. Background Technology

[0002] An internally fixed drainage tube is a tubular medical device that is placed in the cavities, organs, or tissues of the human body during medical procedures to guide and drain fluids (such as blood, pus, bile, cerebrospinal fluid, etc.) or gases. Through specific design, it can be relatively fixed in the target position and is not easily displaced.

[0003] Chinese Patent Publication No. CN221637081U discloses a drainage tube equipped with an intracavitary microballoon and side holes, comprising an intracavitary microballoon and a drainage tube body; the drainage tube body includes a front section and a rear section connected to the rear end of the front section, the drainage tube body having a drainage tube lumen extending from the front section to the rear section, and the rear end of the rear section having a drainage tube interface connected to the drainage tube lumen, and the rear section having a drainage tube... It has an inflation / deflation channel, and the side of the rear section of the drainage tube is provided with an inflation / deflation interface connected to the inflation / deflation channel; the intracavitary microballoon is installed at the front end of the rear section of the drainage tube, and the inner cavity of the intracavitary microballoon is connected to the inflation / deflation channel. When the intracavitary microballoon is inflated, it can expand into the inner cavity of the drainage tube and block the inner cavity of the drainage tube. When it is deflated, it will contract to keep the inner cavity of the drainage tube unobstructed; both the front section and the rear section of the drainage tube body are provided with side holes that penetrate into the inner cavity of the drainage tube.

[0004] Regarding the aforementioned technologies, existing technologies utilize the cooperation of two side holes with the inner cavity to achieve drainage of fluid inside the organ. The anterior segment of the drainage tube relies on its circular deformation as a constraint, reducing the possibility of the drainage tube moving due to patient movement or other external pulling forces. However, the deformation force of the drainage tube itself is limited. If the external instantaneous pulling force is large, the anterior segment of the drainage tube may be squeezed against the patient's tissue, causing the anterior segment of the drainage tube to deform and stretch, potentially leading to the drainage tube moving out of the tissue. If the drainage tube leaves the human tissue at this time, it will further aggravate the patient's trauma and reduce the applicability of the drainage tube. Summary of the Invention

[0005] To improve the applicability of internal fixation drainage tubes, this application provides a pull-wire auxiliary device for removing internal fixation drainage tubes.

[0006] This application provides a pull-wire auxiliary device for removing internally fixed drainage tubes, employing the following technical solution: A pull-wire auxiliary device for removing internally fixed drainage tubes includes a tube body and an operating platform. The tube body includes a coiled section and a straight section. The coiled section is made of a deformable material and is connected to the end of the straight section. The surface of the coiled section has several liquid inlet holes. The straight section is detachably connected to one end of the operating platform. An auxiliary straight rod passes between the operating platform and the tube body. A connector restricting the movement of the auxiliary straight rod is provided at the other end of the operating platform. A fixing assembly is provided between the operating platform and the tube body. The fixing assembly includes a take-up reel, a fixing wire, an operating block, a pull wire, a coil spring, and a connecting post. The connecting post is located inside the coiled section. An operating groove is provided inside the operating platform. A fixed shaft is connected inside the operating groove. The take-up drum is sleeved on the fixed shaft. The coil spring is connected between the fixed shaft and the take-up drum. A first threading hole is provided at the end of the straight part, and a second threading hole is provided at the coiled part. One end of the fixed wire is sleeved on the surface of the connecting post, and the other end passes through the first threading hole and the second threading hole and is connected to the take-up drum. A limiting component is provided on the operating table to restrict the rotation of the take-up drum. The operating block is slidably fitted on the operating table. One end of the pull wire is connected to the end of the connecting post, and the other end passes through the inside of the tube and is connected to the operating block. A stabilizing component is provided on the operating table to restrict the movement of the operating block.

[0007] By adopting the above technical solution, during use, the auxiliary straight rod is inserted between the operating table and the tube body to straighten the tube body. At this time, the fixing line is in a straight state, and the coil spring is stretched. Then, the tube body is inserted into the tissue, the connector is released, and the auxiliary straight rod is removed. The curled part deforms and bends, and the take-up drum rotates in the opposite direction under the force of the coil spring to pull the fixing line. Then, the rotation of the take-up drum is restricted by the limiting component to stabilize the relative position between the end of the curled part and the straight part. During disassembly, the limiting component is released to pull the operating block. By pulling the line, the connecting post moves and the connecting post disengages from the fixing line. The fixing line is retrieved by the take-up drum. At this time, the operating table is moved, and the curled part contacts the tissue and slowly straightens, so the tube body can be removed. By setting a fixing line to pull the end of the curled section, the relative position between the end of the curled section and the straight section is ensured, keeping the curled section in a curled state. This ensures that the tube will not move out of the human tissue due to external force. Compared with existing technologies, this improves the stability of the curled section within the tissue. At the same time, the pulling line moves inside the tube while the fixing line is outside the tube. If the end of the fixing line is stuck due to other factors and cannot move, the curled section can still return to a straight state, avoiding the curled section from hitting the tissue and causing secondary injury to the patient, thus improving the applicability of the drainage tube.

[0008] Optionally, a limiting ring is provided at the end of the straight section, and a helical head is threaded onto one end of the operating table. The straight section passes through the helical head, and the limiting ring is located between the helical head and the operating table.

[0009] By adopting the above technical solution, when installing the pipe body, the pipe body is passed through the spiral head until the limiting ring touches the inside of the spiral head. Then, the spiral head is threaded onto the end of the operating table so that the limiting ring touches the operating table, thereby stabilizing the pipe body and realizing the installation of the pipe body and the operating table.

[0010] Optionally, the connector is a rotating sleeve, which is connected to the end of the auxiliary straight rod. When the tube is in a straight state, the connector is threaded onto the other end of the operating table.

[0011] By adopting the above technical solution, during connection, the connecting part is threaded onto the other end of the operating table, thereby ensuring that the auxiliary straight rod will not move due to the force of the curling part, and keeping the tube body in a straight state.

[0012] Optionally, the limiting component includes a push block, a limiting frame, a limiting block, and a pressure wheel. The limiting block is connected to the take-up drum and is a polygonal block. The push block is slidably fitted on the operating table. The limiting frame is U-shaped and connected to the push block. The length of one side of the limiting frame is greater than the length of the other side. The operating table is provided with a movement limiting component to restrict the movement of the push block. A steering wheel is rotatably connected in the operating groove. The pressure wheel is rotatably connected to the limiting frame. The fixed line is wound around the steering wheel. The pressure wheel applies pressure to the fixed line. When limiting, the limiting block fits between the two sides of the limiting frame.

[0013] By adopting the above technical solution, when the take-up drum is restricted from rotating, the push block is pushed to move the restriction frame and the pressure wheel. The longer side of the restriction frame first contacts the restriction block to correct the angle of the restriction block and ensure that the restriction block enters the restriction frame smoothly. At the same time, the pressure wheel is used to press the fixed line. Finally, the push block is restricted from moving by the limiting component, which achieves the effect of restricting the rotation of the take-up drum and ensures the tension of the fixed line on the end of the coiled part.

[0014] Optionally, the limiting component includes a slide bar and a clamp. Several slide bars are connected in the operating groove. An annular groove is provided on the slide bar. The push block is slidably engaged between several slide bars. The clamp is connected to the push block. The slide bar passes through the clamp. When limiting, the clamp abuts against the end of the annular groove.

[0015] By adopting the above technical solution, when the push block moves to a designated position, the chuck moves to the annular groove, the chuck deforms and contracts, and enters the annular groove. The chuck abuts against the end of the annular groove, reducing the possibility of the push block moving in the opposite direction and achieving the effect of restricting the movement of the push block.

[0016] Optionally, the surface of the connecting post has a groove, and a U-shaped blade is connected in the groove. The end of the fixing line is sleeved in the groove and abuts against the cutting edge of the blade.

[0017] By employing the above technical solution, since the fixation suture is partially exposed within the tissue, it easily adheres to the tissue after prolonged recovery, eventually becoming impossible to move. However, if the fixation suture is thin, it is prone to breakage under tension, causing the coiled portion to deform easily. Therefore, the fixation suture needs to maintain a certain degree of toughness. When removing the tube, the operating block is repeatedly pulled, causing the suture to pull the connecting post multiple times. The connecting post moves slightly back and forth inside the coiled portion. During this process, the blade cuts the end of the fixation suture, causing it to break and detach from the coiled portion. The coiled portion then gradually straightens upon contact with the inner wall of the tissue, allowing the tube to be smoothly removed from the tissue. Because the toughness of the fixation suture needs to be ensured, multiple cuts are required, reducing the possibility of accidental breakage.

[0018] Optionally, the operating table has a T-slot, the operating block is slidably fitted in the T-slot, the end of the T-slot has a clearance hole, the end of the operating block is connected to an extension column, the extension column passes through the clearance hole, one end of the pull wire is tied to the end of the extension column, and the stabilizing component is disposed between the end of the T-slot and the operating block.

[0019] By adopting the above technical solution and setting clearance holes and extension columns, the operating block can smoothly control the movement of the pull wire, which improves the convenience of pull wire operation.

[0020] Optionally, the stabilizing component includes a connecting plate, a fixing plate, and a protruding strip. Two fixing plates are provided, both connected to the ends of the T-slot. A limiting groove is formed on the fixing plate, and a limiting arc groove is provided at the end of the limiting groove. One end of the connecting plate is connected to the operating block. The connecting plate is inclined, with the direction from the operating block to the end of the T-slot as the reference direction. The distance between the connecting plate and the surface of the operating table gradually decreases. The protruding strip is connected to the end of the connecting plate. When restricted, the protruding strip is embedded in the limiting arc groove.

[0021] By adopting the above technical solution, when the operating block is restricted, the moving operating block drives the connecting plate to move until the convex strip enters the restricting arc groove. During this process, the convex strip contacts the restricting slide groove, causing the connecting plate to deform slightly until the convex strip is completely entered into the restricting arc groove. Because the connecting plate is tilted, the connecting plate applies pressure to the fixed plate, reducing the possibility of the connecting plate disengaging from the restricting slide groove and ensuring the stability of the operating block before use.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. In use, insert the auxiliary straight rod between the operating table and the tube body to straighten the tube body. At this time, the fixing line is taut and the coil spring is stretched. Then, insert the tube body into the tissue, loosen the connector, and remove the auxiliary straight rod. The curled part deforms and bends, and the take-up drum rotates in the opposite direction under the force of the coil spring to pull the fixing line. Then, use the limiting component to limit the rotation of the take-up drum to stabilize the relative position between the end of the curled part and the straight part. In disassembly, loosen the limiting component and pull the operating block. By pulling the line, the connecting post moves and the connecting post disengages from the fixing line. The fixing line is retrieved by the take-up drum. At this time, move the operating table. The curled part contacts the tissue and slowly straightens, and the tube body can be removed. By setting a fixing line to pull the end of the curled part, the relative position between the end of the curled part and the straight part is ensured, keeping the curled part in a curled state. This ensures that the tube will not move out of the human tissue due to external force. Compared with existing technologies, this improves the stability of the curled part in the tissue. At the same time, the pulling line moves inside the tube body while the fixing line is outside the tube body. If the end of the fixing line is stuck due to other factors and cannot move, the curled part can still return to a straight state, avoiding the curled part from hitting the tissue and causing secondary injury to the patient, thus improving the applicability of the drainage tube. 2. When restricting the rotation of the take-up drum, push the push block to move the limiting frame and the pressure wheel. The longer side of the limiting frame first contacts the limiting block to correct the angle of the limiting block and ensure that the limiting block enters the limiting frame smoothly. At the same time, the pressure wheel applies pressure to fix the line. Finally, the limiting component restricts the movement of the push block, thereby achieving the effect of restricting the rotation of the take-up drum and ensuring the tension of the fixed line on the end of the coiled part. 3. When the operating block is in a restricted position, the moving operating block drives the connecting plate to move until the protrusion enters the restricted arc groove. During this process, the protrusion contacts the restricted slide groove, causing the connecting plate to deform slightly until the protrusion is fully inside the restricted arc groove. Because the connecting plate is tilted, it applies pressure to the fixed plate, reducing the possibility of the connecting plate dislodging from the restricted slide groove and ensuring the stability of the operating block before use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the drainage tube in a straight state in an embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the working state of the drainage tube in the embodiments of this application.

[0025] Figure 3 This is a cross-sectional view used in the embodiments of this application to illustrate the internal structure of the drainage tube.

[0026] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0027] Figure 5 yes Figure 3 Enlarged view of section B in the middle.

[0028] Figure 6 This is a schematic diagram of the connecting column in an embodiment of this application.

[0029] Figure 7 This is an exploded view used in the embodiments of this application to illustrate the structure of the limiting component and the displacement limiting component.

[0030] Figure 8 This is a cross-sectional view used in the embodiments of this application to illustrate the robust component structure.

[0031] Explanation of reference numerals in the attached drawings: 1. Tube body; 11. Coiled section; 111. Liquid inlet; 12. Straight section; 121. Restricting ring; 13. Spiral head; 2. Operating platform; 21. T-slot; 22. Clearance hole; 3. Auxiliary straight rod; 31. Connector; 4. Fixing assembly; 41. Take-up reel; 411. Restricting nut; 412. Steering wheel; 42. Fixing line; 43. Operating block; 431. Extension column; 44. Pull line; 45. Coil spring; 46. Connecting column; 461. Blade; 5. Restricting assembly; 51. Push block; 52. Restricting frame; 53. Restricting block; 54. Pressure wheel; 6. Movement limiting assembly; 61. Slide rod; 611. Ring groove; 62. Clamp; 7. Stabilizing assembly; 71. Connecting plate; 72. Fixing plate; 73. Protrusion. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0033] This application discloses a pull-wire auxiliary device for removing internally fixed drainage tubes. (Refer to...) Figure 1 and Figure 2 A pull-wire auxiliary device for removing internally fixed drainage tubes includes a tube body 1 and an operating platform 2. The tube body 1 includes a coiled portion 11 and a straight portion 12. The coiled portion 11 is integrally formed at the end of the straight portion 12, and the coiled portion 11 and the straight portion 12 are connected. A cap is provided at the end of the coiled portion 11, and a second threading hole is provided on the coiled portion 11. A first threading hole is provided at the end of the straight portion 12. The coiled portion 11 is made of a deformable material, such as a flexible polymer material, and several liquid inlet holes 111 are opened on the surface of the coiled portion 11.

[0034] Reference Figure 2 and Figure 3 A limiting ring 121 is fixedly connected to the end of the straight section 12. A spiral head 13 is threaded onto one end of the operating table 2. The straight section 12 passes through the spiral head 13, and the limiting ring 121 abuts against the inner wall of the spiral head 13 and one end of the operating table 2. The operating table 2 is composed of two blocks fixedly connected together. An auxiliary straight rod 3 passes between the operating table 2 and the tube 1. A connector 31 is fixedly connected to the end of the auxiliary straight rod 3. The connector 31 is a rotating sleeve, and the connector 31 is threaded onto the other end of the operating table 2.

[0035] Reference Figure 3 , Figure 4 and Figure 5 A fixing assembly 4 is provided between the operating platform 2 and the pipe body 1. The fixing assembly 4 includes a take-up reel 41, a fixing line 42, an operating block 43, a pull line 44, a coil spring 45, and a connecting post 46. An operating groove is provided on the operating platform 2, and an extension plate is fixedly connected within the operating groove. A fixing shaft is fixedly connected to the extension plate. The take-up reel 41 is sleeved on the fixing shaft, and the coil spring 45 is sleeved on the fixing shaft and fixedly connected between the fixing shaft and the take-up reel 41. An installation step is provided at the end of the fixing shaft, and a limiting nut 411 is threaded onto the installation step. The take-up reel 41 is located between the extension plate and the limiting nut 411, and the limiting nut 411 does not apply pressure to the take-up reel 41. A steering wheel 412 is rotatably connected to the extension plate.

[0036] Reference Figure 3 , Figure 5 and Figure 6 The connecting post 46 is disposed within the coiling section 11 and located on the sealing side. A groove is formed on the connecting post 46, and a blade 461 is fixedly connected in the groove. The blade 461 is U-shaped. One end of the fixing wire 42 is sleeved on the surface of the connecting post 46 and located in the groove, while the other end passes through the first wire hole and the second wire hole and is fixedly connected to the take-up drum 41.

[0037] Reference Figure 4 and Figure 7 The operating table 2 is equipped with a limiting component 5, which includes a push block 51, a limiting frame 52, a limiting block 53, and a pressure wheel 54. The operating table 2 is also equipped with a limiting component 6, which includes a slide rod 61 and a clamp 62. Several slide rods 61 are fixedly connected within the operating groove; in this embodiment, two slide rods are used as an example. The surface of each slide rod 61 has an annular groove 611. The push block 51 is slidably engaged between two slide rods 61. The clamp 62 is a collet and is fixedly connected to the side wall of the push block 51. The slide rod 61 passes through the clamp 62.

[0038] Reference Figure 7 The limiting frame 52 is fixedly connected to the push block 51. The limiting frame 52 is U-shaped, with one side longer than the other. The limiting block 53 is fixedly connected to the take-up drum 41. The limiting block 53 is a polygonal block; in this embodiment, a regular dodecagon is used as an example. The pressure roller 54 is rotatably connected to the limiting frame 52 and applies pressure to the fixed line 42.

[0039] When the fixed line 42 is restricted, the coiling part 11 coils and the coiling spring 45 returns to its original position, driving the take-up drum 41 to rotate and pull the fixed line 42. Then, the push block 51 is pushed, causing the restriction frame 52 to move. One side of the restriction frame 52 first touches the restriction block 53 to correct the angle of the restriction block 53. The restriction block 53 finally fits into the restriction frame 52, and the pressure roller 54 applies pressure to the line. At this time, the clamp 62 deforms and enters the annular groove 611. The clamp 62 touches the end of the annular groove 611 to restrict the rotation of the take-up drum 41, thus achieving the restriction of the fixed line 42.

[0040] Reference Figure 3 The operating table 2 has a T-slot 21 with a clearance hole 22 at one end. The operating block 43 is slidably fitted in the T-slot 21, and an extension post 431 is fixedly connected to the operating block 43. The extension post 431 passes through the clearance hole 22 and enters the operating groove. The pull wire 44 passes through the inside of the tube 1, with one end fixedly connected to the end of the connecting post 46 and the other end tied to the end of the extension post 431.

[0041] Reference Figure 3 and Figure 8 The operating table 2 is equipped with a stabilizing component 7 to restrict the movement of the operating block 43. The stabilizing component 7 includes a connecting plate 71, a fixing plate 72, and a protruding strip 73. Two fixing plates 72 are provided, both fixedly connected to the ends of the T-slot 21. The fixing plates 72 have a limiting groove, and the ends of the limiting grooves are provided with limiting arc grooves. One end of the connecting plate 71 is fixedly connected to the operating block 43, and the other end is inclined. With the direction from the operating block 43 to the fixing plate 72 as a reference direction, the distance between the connecting plate 71 and the surface of the operating table 2 gradually decreases. The protruding strip 73 is fixedly connected to the end of the connecting plate 71, and the connecting plate 71 is perpendicular to the fixing plate 72. The limiting groove matches the shape of the connecting plate 71, and the limiting arc groove matches the shape of the protruding strip 73.

[0042] When the operating block 43 is in a restricted position, the moving operating block 43 drives the connecting plate 71 to move. During this process, the protrusion 73 abuts against the opening of the restricting arc groove, and the connecting plate 71 deforms until the protrusion 73 is fitted into the restricting arc groove and the connecting plate 71 is fitted into the restricting slide groove, thereby restricting the movement of the operating block 43. When moving, the operating block 43 is pressed in the opposite direction, and the protrusion 73 is disengaged from the restricting arc groove.

[0043] In this embodiment, the patient's tissues include various cystic areas such as the liver, kidneys, bile ducts, abdominal cavity, thoracic cavity, and pericardium.

[0044] The implementation principle of a pull-wire auxiliary device for removing internal fixation drainage tubes according to an embodiment of this application is as follows: In use, the auxiliary straight rod 3 is inserted into the operating table 2 and the tube body 1, straightening the coiled portion 11. Then, the connector 31 is threaded onto the other end of the operating table 2. At this time, the fixing wire 42 is straightened by the force of the coiling spring 45. The coiled portion 11 is inserted into the patient's tissue. The connector 31 is released, and the auxiliary straight rod 3 is pulled out. At this time, the coiled portion 11 deforms and curls up, and the fixing wire 42 is wound up by the take-up reel 41, pushing the push block 51. Until the chuck 62 touches the end of the annular groove 611, during this process, the longer side of the limiting frame 52 touches the limiting block 53, the limiting block 53 rotates for calibration, and then fits into the limiting frame 52 to stabilize the fixing line 42; after the treatment time, the tube body 1 needs to be removed. Apply force to the operating block 43 multiple times, and pull the connecting column 46 repeatedly through the pull line 44 to make the blade 461 cut the fixing line 42 until the fixing line 42 is broken. At this time, the operating table 2 can be pulled, and the curled part 11 gradually straightens after touching the tissue, and the tube body 1 can be removed.

[0045] By setting a fixing line 42 to pull the end of the coiled part 11, the relative position between the end of the coiled part 11 and the straight part 12 is ensured, keeping the coiled part 11 in a coiled state. This ensures that the tube body 1 will not move out of the human tissue due to external force. Compared with the prior art, this improves the stability of the coiled part 11 in the tissue. At the same time, the pull line 44 moves inside the tube body 1, while the fixing line 42 is partially outside the tube body 1. If the end of the fixing line 42 is stuck due to other factors and cannot move, the coiled part 11 can still return to a straight state, avoiding the coiled part 11 from hitting the tissue and causing secondary injury to the patient, thus improving the applicability of the drainage tube.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pull-wire auxiliary device for removing internally fixed drainage tubes, characterized in that: The system includes a tube body (1) and an operating table (2). The tube body (1) includes a coiled portion (11) and a straight portion (12). The coiled portion (11) is made of a deformable material and is connected to the end of the straight portion (12). The surface of the coiled portion (11) has several liquid inlet holes (111). The straight portion (12) is detachably connected to one end of the operating table (2). An auxiliary straight rod passes between the operating table (2) and the tube body (1). 3) A connector (31) is provided at the other end of the operating table (2) to restrict the movement of the auxiliary straight rod (3). A fixing assembly (4) is provided between the operating table (2) and the tube body (1). The fixing assembly (4) includes a take-up drum (41), a fixing line (42), an operating block (43), a pull line (44), a coil spring (45), and a connecting post (46). The connecting post (46) is located inside the coiled part (11). The operating table (2) is located inside the tube body (11). An operating groove is provided, and a fixed shaft is connected inside the operating groove. The take-up drum (41) is sleeved on the fixed shaft. The coil spring (45) is connected between the fixed shaft and the take-up drum (41). The straight part (12) has a first threading hole at its end, and the coiled part (11) has a second threading hole. One end of the fixed wire (42) is sleeved on the surface of the connecting post (46), and the other end passes through the first threading hole and the second threading hole and is connected to the take-up drum (41). The operating table (2) is provided with a limiting component (5) that restricts the rotation of the take-up drum (41). The operating block (43) is slidably fitted on the operating table (2). One end of the pull wire (44) is connected to the end of the connecting post (46), and the other end passes through the inside of the tube (1) and is connected to the operating block (43). The operating table (2) is provided with a stabilizing component (7) that restricts the movement of the operating block (43).

2. The pull-wire auxiliary device for removing an internally fixed drainage tube according to claim 1, characterized in that: A limiting ring (121) is provided at the end of the straight part (12), and a screw head (13) is threaded onto one end of the operating table (2). The straight part (12) passes through the screw head (13), and the limiting ring (121) is located between the screw head (13) and the operating table (2).

3. The pull-wire auxiliary device for removing an internally fixed drainage tube according to claim 1, characterized in that: The connector (31) is a rotating sleeve. The connector (31) is connected to the end of the auxiliary straight rod (3). When the tube body (1) is in a straight state, the connector (31) is threaded to the other end of the operating table (2).

4. The pull-wire auxiliary device for removing an internally fixed drainage tube according to claim 1, characterized in that: The limiting component (5) includes a push block (51), a limiting frame (52), a limiting block (53), and a pressure wheel (54). The limiting block (53) is connected to the take-up drum (41) and is a polygonal block. The push block (51) is slidably fitted on the operating table (2). The limiting frame (52) is U-shaped and connected to the push block (51). The length of one side of the limiting frame (52) is greater than the length of the other side. The operating table (2) is provided with a limiting component (6) to restrict the movement of the push block (51). A steering wheel (412) is rotatably connected in the operating groove. The pressure wheel (54) is rotatably connected to the limiting frame (52). The fixed line (42) is wound around the steering wheel (412). The pressure wheel (54) applies pressure to the fixed line (42). When restricted, the limiting block (53) fits between the two sides of the limiting frame (52).

5. The pull-wire auxiliary device for removing an internally fixed drainage tube according to claim 4, characterized in that: The limiting component (6) includes a slide rod (61) and a clamp (62). Several slide rods (61) are connected in the operating groove. An annular groove (611) is provided on the slide rod (61). The push block (51) is slidably engaged between several slide rods (61). The clamp (62) is connected to the push block (51). The slide rod (61) passes through the clamp (62). When limiting, the clamp (62) abuts against the end of the annular groove (611).

6. The pull-wire auxiliary device for removing an internally fixed drainage tube according to claim 1, characterized in that: The connecting post (46) has a groove on its surface, and a U-shaped blade (461) is connected in the groove. The end of the fixing line (42) is sleeved in the groove and abuts against the cutting edge of the blade (461).

7. The pull-wire auxiliary device for removing an internally fixed drainage tube according to claim 1, characterized in that: The operating table (2) has a T-slot (21) and the operating block (43) is slidably fitted in the T-slot (21). The end of the T-slot (21) has a clearance hole (22). The end of the operating block (43) is connected to an extension column (431). The extension column (431) passes through the clearance hole (22). One end of the pull wire (44) is tied to the end of the extension column (431). The stabilizing component (7) is disposed between the end of the T-slot (21) and the operating block (43).

8. The pull-wire auxiliary device for removing an internally fixed drainage tube according to claim 7, characterized in that: The stabilizing component (7) includes a connecting plate (71), a fixing plate (72), and a protrusion (73). Two fixing plates (72) are provided, both connected to the end of the T-slot (21). A limiting groove is provided on the fixing plate (72), and a limiting arc groove is provided at the end of the limiting groove. One end of the connecting plate (71) is connected to the operating block (43). The connecting plate (71) is inclined, with the direction from the operating block (43) to the end of the T-slot (21) as the reference direction. The distance between the connecting plate (71) and the surface of the operating table (2) gradually decreases. The protrusion (73) is connected to the end of the connecting plate (71). When restricted, the protrusion (73) is embedded in the limiting arc groove.

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