Anal canal drainage device used after colorectal cancer operation

Abstract

The anal tube drainage apparatus comprises an insertion tube body, a transition tube body and an external drainage tube body which are sequentially connected end to end, the tube wall of the transition tube body is communicated with a washing tube, the external drainage tube body is divided into a plurality of sections of sub-tube bodies, the sub-tube bodies are transparent tube bodies, and the tube wall of the transition tube body is communicated with the washing tube. Every two adjacent sub-pipe bodies are connected through a set of connecting assemblies, a cleaning mechanism used for cleaning dirt attached to the pipe wall is arranged in each sub-pipe body, and each cleaning mechanism comprises a first rotating pipe, a second rotating pipe, a winder and a cleaning line; a traditional anal tube is split into the insertion tube body, the transition tube body and the external drainage tube body, the external drainage tube body is split into the multiple transparent sub-tube bodies, and the cleaning mechanism in the sub-tube body corresponding to a certain position is selected to conduct targeted cleaning by observing the area which is difficult to wash and has to-be-cleaned attached dirt. And the cleaning mechanism removes attached dirt in a rotary scraping mode, and cleaning is more thorough.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically to an anal drainage device for use after colorectal cancer surgery. Background Art

[0002] After colorectal cancer surgery, a large amount of secretions will be generated in the surgical area, including blood, exudate, etc. If these secretions accumulate around the wound, it will not only affect the wound healing, but also increase the risk of infection. Therefore, an anal drainage device is needed for drainage. At the same time, anal drainage has the functions of assisting the patient in defecation and exhausting gas to relieve the pressure at the anastomosis site.

[0003] When using an anal drainage device for drainage, it is usually necessary to assist the patient to take a suitable lying position, thoroughly clean and disinfect the area around the patient's anus and the surgical site, select a suitable insertion position for the anal drainage device to ensure that feces, gas, secretions, etc. in the patient's intestinal tract can be effectively discharged through the anal drainage device. Connect a negative pressure drainage bag to the end of the tube of the anal drainage device, and use the principle of negative pressure suction to form negative pressure in the negative pressure belt, so as to act on the anal drainage device to achieve the drainage process.

[0004] During the daily drainage process, at the bending part of the drainage tube, due to local lumen stenosis or angulation, it is easy to accumulate viscous secretions such as blood clots, necrotic tissues and part of feces to form blockages. At the same time, the drainage tube located outside the human body is affected by body position or movement. When the patient changes body position or moves, the drainage tube may be compressed or twisted, resulting in blockages at different positions.

[0005] Currently, the method of regularly flushing the drainage tube is adopted to eliminate the blockage dirt in the anal drainage tube. Generally, the flushing position is usually in the upper area of the anal drainage device. When flushing, normal saline is injected into the anal drainage tube to flush away the blockage dirt. Since the areas where the dirt forms blockages are different, it is difficult for the water flow to cover all areas during flushing, so that some stubborn dirt that is difficult to be washed away adheres to the tube wall. These residual stubborn dirt adhering to the tube wall will increase the dirt adhesion points during the subsequent drainage process, and it is more likely to cause blockages, making it difficult to drain the accumulated fluid, increasing the local pressure and causing discomfort to the patient. Summary of the Invention

[0006] The purpose of the present invention is to provide an anal drainage device for use after colorectal cancer surgery to solve the problem that in the existing anal drainage device during drainage after colorectal cancer surgery, some stubborn dirt adheres to the tube wall and is difficult to be cleaned due to the fact that some blocked areas inside are difficult to be covered by flushing, which is likely to cause blockages.

[0007] The technical solution of the present invention is as follows: An anal drainage device for postoperative colorectal cancer, comprising an insertion tube body, a transition tube body and an external drainage tube body connected in sequence from head to tail. A flushing tube is communicated with the tube wall of the transition tube body. The external drainage tube body is divided into several sub-tube bodies, and the sub-tube bodies are transparent tube bodies. Adjacent two sub-tube bodies are connected by a set of connecting components. A cleaning mechanism for cleaning the dirt adhered to the tube wall is arranged in each sub-tube body. The cleaning mechanism includes a first rotating tube, a second rotating tube, a wire winding device and a cleaning wire. The first rotating tube and the second rotating tube are respectively connected to the head and tail ends of the sub-tube body and can rotate relative to the sub-tube body. The wire winding device is arranged on the outer side wall of the first rotating tube. One end of the cleaning wire is connected to the wire winding device, and the other end of the cleaning wire passes through the first rotating tube and extends into the sub-tube body to be fixedly connected to the inner wall of the second rotating tube. When the sub-tube body is flushed by the flushing tube, the dirt adhered to the tube wall of the sub-tube body is removed by the cleaning mechanism.

[0008] Preferably, as a further improvement of the present invention, the wire winding device includes a mounting seat, a wire winding roller and a rotation driving component. The mounting seat is fixed on the outer side wall of the first rotating tube. An installation cavity and a connection channel are arranged inside the mounting seat. A through hole for the cleaning wire to pass through is arranged on the side wall of the first rotating tube. One end of the connection channel is communicated with the installation cavity, and the other end of the connection channel is communicated with the through hole. The wire winding roller is arranged in the installation cavity. One end of the roller shaft of the wire winding roller is rotatably connected to the inner wall of the installation cavity, and the other end of the roller shaft of the wire winding roller extends out of the installation cavity and is connected with a rotation driving component for driving its rotation.

[0009] Preferably, as a further improvement of the present invention, a first sealing ring is fixed in the through hole. The cleaning wire is arranged in the first sealing ring and is slidably and sealingly connected with the first sealing ring.

[0010] A rotation connection part for keeping the first rotating tube and the second rotating tube rotating synchronously is arranged between the first rotating tube and the second rotating tube. The rotation connection part includes a buckle, a multi-stage telescopic sleeve rod, a limit seat and a locking component. The buckle is fixed on the outer wall of the second rotating tube. The outermost rod body of the multi-stage telescopic sleeve rod is fixed to the buckle. The limit seat is fixed on the outer wall of the first rotating tube. A limit hole is arranged on the limit seat, and the limit hole is located directly above the multi-stage telescopic sleeve rod. The locking component is detachably connected to the innermost rod body of the multi-stage telescopic sleeve rod and is used for locking the telescopic length of the multi-stage telescopic sleeve rod after the innermost rod body of the multi-stage telescopic sleeve rod passes through the limit hole.

[0011] Preferably, as a further improvement of the present invention, the locking component includes a bolt and a nut. A mounting hole is arranged on the side wall of the innermost rod body of the multi-stage telescopic sleeve rod along its radial direction. The bolt is arranged in the mounting hole, and one end of the bolt passes through the mounting hole and is threadedly connected with the nut.

[0012] Preferably, as a further improvement of the present invention, the connection assembly includes a first joint, a second joint and a connecting pipe. The first joint is connected to the head end of the sub-tube body, the second joint is connected to the tail end of the sub-tube body, and the second joint of the previous sub-tube body is connected to the first joint of the next sub-tube body through the connecting pipe.

[0013] Preferably, as a further improvement of the present invention, the structure of the first joint is the same as that of the second joint. The first joint includes two connecting sleeves symmetrically arranged up and down, two second sealing rings and two connecting bearings. The two connecting sleeves are respectively sleeved and fixed on the outer wall of the head end of the sub-tube body and the outer wall of the connecting pipe, and there is a gap between the two connecting sleeves. The first rotating pipe is connected between the sub-tube body and the connecting pipe. The two connecting bearings are respectively rotatably connected between each connecting sleeve and the first rotating pipe. Each second sealing ring is arranged in the pipe cavity of the connecting sleeve inside the connecting bearing.

[0014] Preferably, as a further improvement of the present invention, a first valve is provided on the transition pipe body, and a second valve is provided at the connection between the flushing pipe and the transition pipe body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The traditional anal tube is split into three parts: an insertion tube body, a transition tube body and an external drainage tube body. The insertion tube body is used to insert into the anus and rectum of the patient. The transition tube body is connected to the flushing tube, and can flush the inside of the anal tube under the action of the flushing tube, so as to disperse the blocked pollutants caused by the accumulation of dirt inside the anal tube. By splitting the transition tube body into several transparent sub-tube bodies, the traditional anal tube is divided into multiple sections. By observing the areas that are difficult to be flushed and have dirt to be cleaned, the cleaning mechanism inside the corresponding sub-tube body at a certain place is selected for targeted cleaning.

[0016] 2. The cleaning mechanism composed of a first rotating pipe, a second rotating pipe, a wire winder and a cleaning wire can realize the scraping and cleaning process of stubborn dirt adhering to the inner wall of the sub-tube body. During cleaning, straighten this section of the sub-tube body, and use the wire winder to wind up the cleaning wire, so that the cleaning wire is kept as straight as possible, which is convenient to contact with the inner wall of the sub-tube body. Then keep this section of the sub-tube body stationary, and rotate the first rotating pipe and the second rotating pipe at the same time, so as to drive the wire winder and the cleaning wire to rotate circumferentially around the sub-tube body synchronously. During the rotation of the cleaning wire, combined with the flushing process of the flushing tube, the stubborn dirt adhering to the inner wall of the sub-tube body will be cleaned and scraped, and the cleaning is more thorough, thus avoiding the occurrence of blockage problems in this area.

[0017] 3. The provided wire winder can freely adjust the slack and tension state of the cleaning wire according to usage conditions. When cleaning, the cleaning wire is kept taut to cut the attached dirt. During the daily drainage process, the cleaning wire is adjusted to a slack state to reserve a certain amount of movement space for the cleaning wire, ensuring that the cleaning wire can bend along with the sub-tube body to facilitate the patient's daily activities. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is the front view structural schematic diagram of an anal canal drainage device for use after colorectal cancer surgery according to the present invention.

[0019] Figure 2 FIG. is the cross-sectional view structural schematic diagram of a section of the sub-tube body in an anal canal drainage device for use after colorectal cancer surgery according to the present invention.

[0020] Figure 3 FIG. is the structural schematic diagram of the rotating connection part in an anal canal drainage device for use after colorectal cancer surgery according to the present invention.

[0021] Figure 4 For the present invention Figure 2 Local enlarged schematic diagram at position B.

[0022] Figure 5 For the present invention Figure 1 Local enlarged schematic diagram at position A. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following combines the attached Figure 1 to the attached Figure 5 to describe in detail the specific embodiments of the present invention. In the description of the invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0024] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features; in the description of the invention, unless otherwise stated, the meaning of "plurality" is two or more.

[0025] Embodiment As Figures 1 to 5As shown in the figure, an anal canal drainage device for use after colorectal cancer surgery is provided in an embodiment of the present invention, which includes an anal canal 1 and a flushing tube 2. The anal canal 1 is composed of an insertion tube body 11, a transition tube body 12, and an external drainage tube body 13 that are sequentially connected end to end. The flushing tube 2 is communicated with the tube wall of the transition tube body 12. The external drainage tube body 13 is divided into several sub-tube bodies 131. The sub-tube body is a transparent tube body. Adjacent two sub-tube bodies 131 are connected by a set of connection components. A cleaning mechanism for cleaning the dirt adhering to the tube wall is provided in each sub-tube body 131. The cleaning mechanism includes a first rotating tube 31, a second rotating tube 32, a wire winder 33, and a cleaning wire 34. The first rotating tube 31 and the second rotating tube 32 are respectively connected to the head and tail ends of the sub-tube body 131 and can rotate relative to the sub-tube body 131. The wire winder 33 is arranged on the outer side wall of the first rotating tube 31. One end of the cleaning wire 34 is connected to the wire winder 33, and the other end of the cleaning wire 34 passes through the first rotating tube 31 and then extends into the sub-tube body 131 and is fixedly connected to the inner wall of the second rotating tube 32.

[0026] In this embodiment, the traditional anal canal 1 is split into three parts: an insertion tube body 11, a transition tube body 12, and an external drainage tube body 13. The insertion tube body 11 is used to be inserted into the anus and rectum of the patient. The transition tube body 12 is connected to the flushing tube 2, and can flush the inside of the anal canal 1 under the action of the flushing tube 2, so as to play a role in flushing the blockage pollutants caused by the accumulation of dirt inside the anal canal 1. By splitting the transition tube body 12 into several transparent sub-tube bodies 131, the traditional anal canal 1 is divided into multiple sections. By observing the area where the dirt to be cleaned adheres, targeted cleaning is carried out inside a corresponding sub-tube body 131 at a certain place. When cleaning, straighten this section of the sub-tube body 131, and use the wire winder 33 to wind up the cleaning wire 34, so that the cleaning wire 34 is kept as straight as possible, which is convenient to contact the inner wall of the sub-tube body 131. Then keep this section of the sub-tube body 131 still, and at the same time rotate the first rotating tube 31 and the second rotating tube 32, so as to drive the wire winder 33 and the cleaning wire 34 to rotate synchronously around the circumferential direction of the sub-tube body 131. During the rotation of the cleaning wire 34, combined with the flushing process of the flushing tube 2, the stubborn dirt adhering to the inner wall of the sub-tube body 131 will be cleaned and scraped, avoiding the occurrence of blockage problems here. After the cleaning is completed, release a certain length of the cleaning wire 34 through the wire winder 33, so that the cleaning wire 34 is kept in a relaxed state, thus reserving a certain amount of activity space for the cleaning wire 34, ensuring that the cleaning wire 34 can follow the sub-tube body 131 to bend, so as to facilitate the daily activities of the patient.

[0027] Specifically, the wire reel 33 includes a mounting seat 331, a winding roller 332 and a rotating drive assembly 333; the mounting seat 331 is fixed on the outer wall of the first rotating tube 31, and a mounting cavity and a connecting channel are provided inside the mounting seat 331. A through hole 311 for passing the cleaning line 34 is opened on the side wall of the first rotating tube 31, one end of the connecting channel is connected to the mounting cavity, and the other end of the connecting channel is connected to the through hole 311; the roller shaft 332 of the winding roller is arranged in the mounting cavity, one end of the roller shaft 332 of the winding roller is rotatably connected to the inner wall of the mounting cavity, and the other end of the roller shaft 332 of the winding roller extends to the outside of the mounting cavity and is connected to a rotating drive assembly 333 for driving it to rotate; the winding roller 332 is arranged in the mounting cavity, one end of the roller shaft of the winding roller 332 is rotatably connected to the inner wall of the mounting cavity, and the other end of the roller shaft of the winding roller 332 extends to the outside of the mounting cavity and is connected to the rotating drive assembly 333.

[0028] When the cleaning line 34 is wound or released by the reel 33, the roller shaft of the winding roller is rotated by the rotating drive component 333 to drive the winding roller 332 to rotate, and the winding and releasing process of the cleaning line 34 is realized by controlling the rotation direction of the winding roller 332.

[0029] The rotary drive assembly 333 is a hand wheel with a locking function, which drives the winding roller 332 to rotate by rotating the hand wheel, and the self-locking function of the hand wheel is used to maintain the loose and tight state of the cleaning line 34.

[0030] In another embodiment of the present invention, in order to prevent dirt from entering the installation cavity through the through hole 311 during the movement of the cleaning line 34, a first sealing ring 35 is fixed in the through hole 311, and the cleaning line 34 is inserted into the first sealing ring 35 and is slidingly sealed and connected to the first sealing ring 35.

[0031] In another embodiment of the present invention, Figure 2 and Figure 3 As shown, a rotating connection part for keeping the two rotating synchronously is provided between the first rotating tube 31 and the second rotating tube 32, and the rotating connection part includes a buckle 41, a multi-stage telescopic sleeve rod 42, a limit seat 43 and a locking assembly 44; the buckle 41 is fixed to the outer wall of the second rotating tube 32; the multi-stage telescopic sleeve rod 42 is composed of a plurality of sleeve rods with successively increasing diameters and mutually sleeved, and the rod body located at the outermost side is fixed to the buckle 41; the limit seat 43 is fixed to the outer wall of the first rotating tube 31, and a limit hole 431 is provided on the limit seat 43, and the limit hole 431 is located directly above the multi-stage telescopic sleeve rod 42; the locking assembly 44 is detachably connected to the innermost rod body of the multi-stage telescopic sleeve rod 42, and is used to lock the telescopic length of the multi-stage telescopic sleeve rod 42 after the innermost rod body of the multi-stage telescopic sleeve rod 42 passes through the limit hole 431.

[0032] In this embodiment, the rotating connection part is composed of a buckle 41, a multi-stage telescopic sleeve rod 42, a limit seat 43 and a locking component 44. By setting the rotating connection part, it is convenient to synchronously rotate the first rotating pipe 31 and the second rotating pipe 32 during the cleaning process. In the normal state, the multi-stage telescopic sleeve rod 42 is in a contracted state and will not affect the bending process of the sub-tube body 131. When cleaning, first straighten the sub-tube body 131, then stretch the multi-stage telescopic sleeve rod 42 so that the innermost rod body of the multi-stage telescopic sleeve rod 42 passes through the limit hole 431 and extends above the limit seat 43, and then limit the multi-stage telescopic sleeve rod 42 through the locking component 44 to make the multi-stage telescopic sleeve rod 42 maintain its current length and not contract. Thus, the first rotating pipe 31 and the second rotating pipe 32 are connected into a whole by the multi-stage telescopic sleeve rod 42. In this way, just rotating any one of the first rotating pipe 31 and the second rotating pipe 32 will synchronously drive the other one to rotate, and then drive the cleaning wire 34 to rotate for cleaning.

[0033] Specifically, the locking component 44 includes a bolt 441 and a nut 442. An installation hole is formed in the side wall of the innermost rod body of the multi-stage telescopic sleeve rod 42 along its radial direction. The bolt 441 is inserted into the installation hole, and one end of the bolt 441 passes through the installation hole and is threadedly connected to the nut 442.

[0034] Through the above settings, the locking component 44 can be freely disassembled and assembled from the multi-stage telescopic sleeve rod 42. In the normal state, the bolt 441 and the nut 442 are inserted through the contracted multi-stage telescopic sleeve rod 42. When limiting is required, first unscrew the nut 442, pull out the bolt 441, then stretch the multi-stage telescopic sleeve rod 42 so that the innermost rod body of the multi-stage telescopic sleeve rod 42 passes through the limit hole 431 and extends above the limit seat 43, and then insert the bolt 441 into the innermost rod body of the multi-stage telescopic sleeve rod 42 and screw on the nut 442 to prevent it from falling off. Use the bolt 441 to hold above the limit seat 43, thereby forming a limit on the multi-stage telescopic sleeve rod 42.

[0035] Specifically, the connection component includes a first joint 51, a second joint 52 and a connecting pipe 53. The first joint 51 is connected to the head end of the sub-tube body 131, the second joint 52 is connected to the tail end of the sub-tube body 131, and the second joint 52 of the previous sub-tube body 131 is connected to the first joint 51 of the next sub-tube body 131 through the connecting pipe 53.

[0036] Furthermore, the structure of the first joint 51 is the same as that of the second joint 52. The first joint 51 includes two connecting sleeves 511 symmetrically arranged up and down, two second sealing rings 512, and two connecting bearings 513. The two connecting sleeves 511 are respectively sleeved and fixed on the outer wall of the head end of the sub-tube body 131 and the outer wall of the connecting pipe 23, and there is a gap formed between the two connecting sleeves 511. The first rotating pipe 31 is connected between the sub-tube body 131 and the connecting pipe 23. The two connecting bearings 513 are respectively rotatably connected between each connecting sleeve 511 and the first rotating pipe 31. Each second sealing ring 512 is arranged in the lumen of the connecting sleeve 511 on the inner side of the connecting bearing 513.

[0037] With the above settings, under the positioning of the two connecting sleeves 511 and in cooperation with the connecting bearings 513, the first rotating pipe 31 can rotate freely between the sub-tube body 131 and the connecting pipe 23. The provided second sealing ring 512 can achieve the rotational sealing process to prevent the leakage of dirty liquid. The gap formed between the two connecting sleeves 511 can facilitate the fixing of the mounting seat 331 and the limiting seat 43 to the outer wall of the first rotating pipe 31. Similarly, since the structure of the second joint 52 is the same as that of the first joint 51, the second rotating pipe 32 can also rotate freely between the sub-tube body 131 and the connecting pipe 23, and it is convenient to fix the buckle 41 on the outer wall of the second rotating pipe 32.

[0038] In another embodiment of the present invention, a first valve 6 is provided on the transition pipe body 12. By setting the first valve 6, when flushing, the upper end of the transition pipe body 12 can be closed to prevent the flushing water from flowing back into the insertion pipe body 11. A second valve 7 is provided at the connection between the flushing pipe 2 and the transition pipe body 12. By setting the second valve 7, the flushing pipe 2 and the transition pipe body 12 can be connected during flushing, so that the flushing liquid can enter the transition pipe body 12 from the flushing pipe 2 to flush the dirt. When the flushing and cleaning process is over, close the second valve 7 and open the first valve 6 to maintain the drainage process.

[0039] In summary, the present invention splits the traditional anal tube into three parts: an insertion tube body, a transition tube body, and an external drainage tube body. The insertion tube body is used to insert into the anus and rectum of a patient. The transition tube body is connected to a flushing tube, and under the action of the flushing tube, it can flush the inside of the anal tube, thereby playing a role in flushing away the blocked pollutants caused by the accumulation of dirt inside the anal tube. By splitting the transition tube body into several transparent sub-tube bodies, the traditional anal tube is divided into multiple sections. By observing the areas that are difficult to be flushed and have dirt attached that needs to be cleaned, the cleaning mechanism inside the corresponding sub-tube body at a certain location can be selected for targeted cleaning, making the cleaning more thorough. The cleaning mechanism composed of a first rotating tube, a second rotating tube, a wire reel, and a cleaning wire can realize the scraping and cleaning process of stubborn dirt adhering to the inner wall of the sub-tube body. During cleaning, straighten this section of the sub-tube body, and use the wire reel to wind up the cleaning wire, so that the cleaning wire is kept as straight as possible, which is convenient for contacting the inner wall of the sub-tube body. Then keep this section of the sub-tube body stationary, and at the same time rotate the first rotating tube and the second rotating tube, thereby driving the wire reel and the cleaning wire to rotate synchronously around the circumference of the sub-tube body. During the rotation of the cleaning wire, combined with the flushing process of the flushing tube, the stubborn dirt attached to the inner wall of the sub-tube body will be cleaned and scraped, avoiding the occurrence of blockage problems in this area. The wire reel provided can freely adjust the slack and tension state of the cleaning wire according to the usage situation. Keep the cleaning wire taut during cleaning to cut the attached dirt. During the daily drainage process, adjust the cleaning wire to a slack state, leaving a certain amount of movement space for the cleaning wire, ensuring that the cleaning wire can bend along with the sub-tube body to facilitate the patient's daily activities.

[0040] The above-disclosed are only several preferred specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An anal drainage device for use after colorectal cancer surgery, characterized in that, The invention comprises an insertion tube body (11), a transition tube body (12) and an external drainage tube body (13) which are connected end to end in sequence, wherein a flushing tube (2) is connected to the tube wall of the transition tube body (12), and the external drainage tube body (13) is divided into a plurality of sections of transparent sub-tube bodies (131), and two adjacent sections of the sub-tube bodies (131) are connected by a group of connecting components, and each section of the sub-tube body (131) is provided with a cleaning mechanism for cleaning dirt adhering to the inner tube wall, and the cleaning mechanism comprises: A first rotating tube (31) and a second rotating tube (32) are respectively rotatably connected to the head and tail ends of the sub-tube body (131); A wire reel (33) disposed on an outer side wall of the first rotating tube (31); A cleaning line (34), one end of which is connected to the wire reel (33), and the other end of which passes through the first rotating tube (31) and then extends into the sub-tube body (131) and is fixedly connected to the inner wall of the second rotating tube (32); When the sub-tube body (131) is flushed using the flushing tube (2), dirt adhering to the tube wall of the sub-tube body (131) is removed by the cleaning mechanism.

2. The anal canal drainage device for use after colorectal cancer surgery according to claim 1, wherein The wire reel (33) comprises: A mounting seat (331) is fixed on the outer wall of the first rotating tube (31); a mounting cavity and a connecting channel are provided inside the mounting seat (331); a through hole (311) for allowing a cleaning line (34) to pass through is provided on the side wall of the first rotating tube (31); one end of the connecting channel is in communication with the mounting cavity, and the other end of the connecting channel is in communication with the through hole (311); A winding roller (332) is arranged in the installation cavity, one end of the roller shaft of the winding roller (332) is rotatably connected to the inner wall of the installation cavity, and the other end of the roller shaft of the winding roller (332) extends outside the installation cavity and is connected to a rotation drive component (333) for driving the winding roller to rotate.

3. The anal canal drainage device for use after colorectal cancer surgery according to claim 2, characterized in that, A first sealing ring (35) is fixed in the through hole (311), and the cleaning line (34) is passed through the first sealing ring (35) and is connected to the first sealing ring (35) in a sliding and sealing manner.

4. The anal canal drainage device for use after colorectal cancer surgery according to claim 3, wherein, A rotating connection portion is provided between the first rotating tube (31) and the second rotating tube (32) for enabling the two to rotate synchronously, and the rotating connection portion comprises: A buckle (41) fixed on the outer wall of the second rotating tube (32); A multi-stage telescopic sleeve rod (42), the outermost rod body of which is fixed to the buckle (41); A limit seat (43) is fixed on the outer wall of the first rotating tube (31), and a limit hole (431) is provided on the limit seat (43), and the limit hole (431) is located directly above the multi-stage telescopic sleeve rod (42); The locking assembly (44) is detachably connected to the innermost rod body of the multi-stage telescopic sleeve (42) and is used to lock the telescopic length of the multi-stage telescopic sleeve (42) after the innermost rod body of the multi-stage telescopic sleeve (42) passes through the limiting hole (431).

5. The anal canal drainage device for use after colorectal cancer surgery according to claim 3, wherein, The locking component (44) includes a bolt (441) and a nut (442). An installation hole is formed in the side wall of the innermost rod body of the multi-stage telescopic sleeve rod (42) along its radial direction. The bolt (441) is inserted into the installation hole, and one end of the bolt (441) passes through the installation hole and is threadedly connected to the nut (442).

6. The anal canal drainage device for use after colorectal cancer surgery according to any one of claims 2-5, wherein The connection component includes a first joint (51), a second joint (52) and a connecting pipe (53). The first joint (51) is connected to the head end of the sub-tube body (131), and the second joint (52) is connected to the tail end of the sub-tube body (131). The second joint (52) of the previous sub-tube body (131) is connected to the first joint (51) of the next sub-tube body (131) through the connecting pipe (53).

7. The anal canal drainage device for use after colorectal cancer surgery according to claim 6, wherein The structure of the first joint (51) is the same as that of the second joint (52). The first joint (51) includes two connecting sleeves (511) symmetrically arranged up and down, two second sealing rings (512) and two connecting bearings (513). The two connecting sleeves (511) are respectively sleeved and fixed on the outer wall of the head end of the sub-tube body (131) and the outer wall of the connecting pipe (23), and a gap is formed between the two connecting sleeves (511). The first rotating pipe (31) is connected between the sub-tube body (131) and the connecting pipe (23). The two connecting bearings (513) are respectively rotatably connected between each connecting sleeve (511) and the first rotating pipe (31). Each second sealing ring (512) is arranged in the pipe cavity of the connecting sleeve (511) inside the connecting bearing (513).

8. The anal canal drainage device for use after colorectal cancer surgery according to claim 7, wherein, A first valve (6) is provided on the transition pipe body (12), and a second valve (7) is provided at the connection between the flushing pipe (2) and the transition pipe body (12).

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