T tube drainage device

Abstract

The invention relates to the technical field of medical instruments, in particular to a T tube drainage device which comprises a T tube, the bottom of the T tube is sleeved with a flow guide tube, a fixing ring is fixedly installed on the outer wall of the middle of the flow guide tube, and the bottom of the drainage tube is fixedly connected with a liquid collecting bottle used for collecting effusion discharged from the drainage tube. A tray with the upper portion open is arranged at the bottom of the liquid collecting bottle, and a driving mechanism used for driving the connecting block to move up and down is arranged at the end of the connecting block. By rotating the fixing sleeve, the conical ring fixedly connected in the fixing sleeve extrudes the conical sleeve, the drainage tube is fixed to the flow guide tube, operation is simple, the drainage tube is fixed only by screwing the fixing sleeve, adhesion through an adhesive tape is avoided, and then the drainage tube is fixed through rotation of the lead screw. The threaded sleeve drives the connecting block to move up and down to adjust the height of the liquid collecting bottle on the tray, so that the hydrops discharged by the drainage tube is prevented from returning to the body of the patient due to overhigh position of the liquid collecting bottle.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a T-tube drainage device. Background Art

[0002] Hepatic and biliary surgery drainage is to drain accumulated bile, secretions, etc. in the body cavity away from the original place and discharge them outside the body to prevent accumulation in the body cavity or surgical field, secondary compression symptoms, infections or tissue damage. By observing the drainage situation, the change of the condition can be detected early. After drainage, the purpose of reducing pressure, relieving pain, reducing inflammation, preventing the spread of inflammation and facilitating the subsidence of inflammation can be achieved.

[0003] However, in the prior art, such as a T-shaped drainage tube with a growth factor coating and its placement device disclosed in the publication number CN111494735B, this technology can improve the ease of inserting the T-tube into the common bile duct while further reducing the length of the common bile duct incision, which has important clinical significance for shortening the operation time, reducing the risk of intraoperative biliary tract injury and postoperative bile leakage. At the same time, the cell growth factor introduced on the surface of the material of the T-shaped drainage tube is physically embedded in the biological macromolecule coating, which induces and promotes the formation of sinus tracts, and has important clinical application value and broad application prospects for reducing postoperative complications, etc. However, there are still the following problems in use:

[0004] When the above technology is used, it improves the ease of inserting the T-tube into the common bile duct and shortens the operation time. However, during use, the T-tube needs to be connected to a drainage tube to prevent bile stasis, reduce the pressure of the biliary system, and reduce the occurrence of postoperative bile leakage, biliary stricture and other complications. When the above technology connects the T-tube to the drainage tube, the T-tube and the drainage tube orifices are butted, and then glued with tape. The operation is relatively cumbersome, and the height of the liquid collection bottle cannot be adjusted. If the position of the liquid collection bottle is too high, the accumulated liquid discharged from the drainage tube will return to the patient's body again, which is extremely likely to cause secondary infection of the patient. In addition, under the existing conditions, the liquid collection bottle is mostly hung, but in a complex medical environment, there is a risk of accidental touch. If the liquid collection bottle falls and indirectly pulls the drainage tube, and then the drainage tube pulls the T-tube, the T-tube will become loose in the patient's body, which will not only increase the medical workload, but also affect the patient's life safety due to secondary injury. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that the T-tube cannot be conveniently connected to the drainage tube, and to propose a T-tube drainage device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A T-tube drainage device, comprising a T-tube, a drainage tube is sleeved at the bottom of the T-tube, a fixing ring is fixedly installed on the outer wall of the middle part of the drainage tube, a connecting tube is fixedly installed on the outer wall of the fixing ring, and a drainage tube for discharging the accumulated liquid in the T-tube is arranged between the inside of the connecting tube and the right end of the drainage tube. The bottom of the drainage tube is fixedly connected with a liquid collecting bottle for collecting the accumulated liquid discharged from the drainage tube. A tray with an upper opening is arranged at the bottom of the liquid collecting bottle. A connecting block is fixedly installed on the right side wall of the tray, and a driving mechanism for driving the connecting block to move up and down is arranged at the end of the connecting block.

[0008] Preferably, the driving mechanism includes a threaded sleeve fixedly connected to the right end of the connecting block. A lead screw is sleeved in the threaded sleeve through threads. A base is arranged at the bottom of the lead screw. A limiting post is fixedly installed on the upper part of the base. A limiting groove is opened in the limiting post. A driving motor is arranged at the upper end of the limiting groove, and a sliding groove communicating with the limiting groove is opened on the side wall of the limiting post.

[0009] Preferably, the threaded sleeve is slidably arranged in the limiting groove. The driving motor is fixedly installed at the top of the limiting groove. The bottom end of the lead screw is rotatably installed on the base. The connecting block is slidably arranged in the sliding groove.

[0010] Preferably, a fixing ring is fixedly installed on the outer wall of the middle part of the drainage tube. A connecting tube is fixedly installed on the outer wall of the fixing ring. Threaded holes are opened on the outer walls of both sides of the connecting tube, and fixing sleeves are sleeved on the outer walls of the threaded holes through threads. A conical ring is fixedly installed on the inner wall of the right side of the fixing sleeve.

[0011] Preferably, a sealing ring is sleeved on the outer wall of the upper part of the drainage tube. A sealing sleeve sleeved on the outer wall of the drainage tube is arranged on the right side of the sealing ring. A limiting ring with a hollow structure is fixedly installed at the right end of the sealing sleeve, and the diameter of the limiting ring is equal to the diameter of the connecting tube.

[0012] Preferably, a conical sleeve is arranged on the right side of the sealing sleeve. The diameter of the left end of the conical sleeve is equal to the diameter of the connecting tube, and the left side wall of the conical sleeve is attached to the right side wall of the connecting tube.

[0013] Preferably, the sealing ring is arranged in the connecting tube, and the diameter of the sealing ring is equal to the aperture of the connecting tube. The sealing ring is attached to the outer wall of the fixing ring.

[0014] Preferably, the conical sleeve is arranged in the fixing sleeve, and the outer wall of the conical sleeve is fitted with the conical ring.

[0015] Preferably, a valve body is arranged in the connecting tube. Two symmetrically arranged threaded rods are fixedly installed on the outer wall of the valve body. Threaded rod sleeves are sleeved on the outer walls of both threaded rods through threads.

[0016] Preferably, a circular rotating groove is formed in the valve body. A connecting rod is rotatably arranged in the rotating groove. A knob is fixedly installed at the upper end of the connecting rod. Limiting holes that fit with the threaded rod sleeve are formed directly above both sides of the knob relative to the threaded rod sleeve.

[0017] A pipe body arranged in the diversion pipe is fixedly installed in the valve body. A circulation cavity penetrating the pipe body horizontally is formed in the pipe body. A sphere fixedly installed at the bottom end of the connecting rod is arranged in the circulation cavity. A circulation hole is formed in the sphere. An anti-leakage gasket attached to the sphere is fixedly installed in the circulation cavity.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. By rotating the fixed sleeve in the present invention, the conical ring fixedly connected in the fixed sleeve squeezes the conical sleeve, so that the drainage pipe is fixed on the diversion pipe. The operation is simple. Only by screwing the fixed sleeve can the drainage pipe be fixed, avoiding sticking with tape.

[0020] 2. By rotating the lead screw in the present invention, the threaded sleeve drives the connecting block to move up and down to adjust the height of the liquid collecting bottle on the tray, avoiding the accumulated liquid discharged from the drainage pipe flowing back into the patient's body due to the too high position of the liquid collecting bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a T-tube drainage device proposed by the present invention;

[0022] Figure 2 is a schematic diagram of the limiting post and base of a T-tube drainage device proposed by the present invention;

[0023] Figure 3 is a schematic diagram of the lead screw and threaded sleeve of a T-tube drainage device proposed by the present invention;

[0024] Figure 4 is a schematic diagram of the threaded sleeve and connecting block of a T-tube drainage device proposed by the present invention;

[0025] Figure 5 is a schematic diagram of the connecting pipe and fixed ring of a T-tube drainage device proposed by the present invention;

[0026] Figure 6 is a schematic diagram of the T-tube and drainage pipe of a T-tube drainage device proposed by the present invention;

[0027] Figure 7 is a schematic diagram of the sealing ring and sealing sleeve of a T-tube drainage device proposed by the present invention;

[0028] Figure 8 is a schematic diagram of the valve body and sphere cross-section of a T-tube drainage device proposed by the present invention;

[0029] Figure 9 This is a partially cut-away schematic view of a T-tube drainage device proposed by the present invention.

[0030] In the figure: 1. T-tube; 2. connecting tube; 3. threaded hole; 4. fixing ring; 5. diversion tube; 6. drainage tube; 7. sealing ring; 8. sealing sleeve; 9. conical sleeve; 10. fixing sleeve; 11. conical ring; 12. liquid collection bottle; 13. tray; 14. limiting column; 15. base; 16. limiting groove; 17. lead screw; 18. driving motor; 19. threaded sleeve; 20. sliding groove; 21. connecting block; 22. valve body; 23. threaded rod; 24. threaded rod sleeve; 25. knob; 26. limiting hole; 27. connecting rod; 28. rotating groove; 29. tube body; 30. flow cavity; 31. leak-proof gasket; 32. sphere; 33. flow hole. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Refer to Figures 1-9 , a T-tube drainage device includes a T-tube 1. A diversion tube 5 is sleeved at the bottom of the T-tube 1. A fixing ring 4 is fixedly installed on the outer wall of the middle part of the diversion tube 5. A connecting tube 2 is fixedly installed on the outer wall of the fixing ring 4. A drainage tube 6 for discharging the accumulated liquid in the T-tube 1 is arranged between the inside of the connecting tube 2 and the right end of the diversion tube 5. The bottom of the drainage tube 6 is fixedly connected to a liquid collection bottle 12 for collecting the accumulated liquid discharged from the drainage tube 6. A tray 13 with an upper opening is arranged at the bottom of the liquid collection bottle 12. A connecting block 21 is fixedly installed on the right side wall of the tray 13. A driving mechanism for driving the connecting block 21 to move up and down is arranged at the end of the connecting block 21. By the driving mechanism, the height of the liquid collection bottle 12 can be changed to suit patients with different height characteristics.

[0033] When it is necessary to adjust the height of the liquid collection bottle 12, by turning on the driving motor 18, the driving motor 18 drives the lead screw 17 to rotate, so that the threaded sleeve 19 slides up and down in the limiting groove 16. And through the limitation of the threaded sleeve 19 by the limiting groove 16, the threaded sleeve 19 is prevented from rotating along with the lead screw 17, causing the threaded sleeve 19 to rotate idly. The connecting block 21 fixedly connected to the side wall of the threaded sleeve 19 slides up and down in the sliding groove 20 to adjust the height of the liquid collection bottle 12 on the tray 13, so as to adjust the height according to the height characteristics of the patient and meet diverse usage requirements.

[0034] It should be noted that the liquid accumulation in the T-tube 1 first flows into the diversion tube 5, and then through the diversion tube 5, the liquid accumulation flows into the drainage tube 6. Due to the action of gravity, the liquid accumulation flows into the liquid collection bottle 12. The liquid collection bottle 12 is made of transparent glass material, which is convenient for observing the color of the liquid accumulation flowing out of the patient to judge whether the patient's condition has worsened. And through the fixation of the fixed sleeve 10, the drainage tube 6 can be quickly disassembled, which is convenient for replacing the drainage tube 6, thereby cleaning the drainage tube 6 and avoiding the growth of bacteria in the drainage tube 6 from affecting the safety of the patient.

[0035] The driving mechanism includes a threaded sleeve 19 fixedly connected to the right end of the connecting block 21. A lead screw 17 is sleeved in the threaded sleeve 19 through threads. A base 15 is arranged at the bottom of the lead screw 17. A limiting column 14 is fixedly installed on the upper part of the base 15. A limiting groove 16 is opened in the limiting column 14. A driving motor 18 is arranged at the upper end of the limiting groove 16. And a sliding groove 20 communicating with the limiting groove 16 is opened on the side wall of the limiting column 14. A counterweight block is installed in the base 15 to prevent accidental tilting of the limiting column 14 caused by accidentally touching the limiting column 14.

[0036] The threaded sleeve 19 is slidably arranged in the limiting groove 16. The driving motor 18 is fixedly installed at the top of the limiting groove 16. The bottom end of the lead screw 17 is rotatably installed on the base 15. The connecting block 21 is slidably arranged in the sliding groove 20.

[0037] It should be noted that through the driving motor 18 arranged at the top of the limiting groove 16, the driving motor 18 drives the lead screw 17 to rotate, and then the threaded sleeve 19 slides up and down in the limiting groove 16, thereby driving the connecting block 21 to slide up and down in the sliding groove 20, so that the connecting block 21 drives the tray 13 to move up and down, avoiding the different heights of the ends of the T-tube 1 caused by different heights and weights of the patients, and the different required placement plane heights at the bottom of the liquid collection bottle 12.

[0038] A fixing ring 4 is fixedly installed on the outer wall of the middle part of the diversion tube 5. A connecting tube 2 is fixedly installed on the outer wall of the fixing ring 4. Threaded holes 3 are opened on the outer walls of both sides of the connecting tube 2. And a fixing sleeve 10 is sleeved on the outer wall of the threaded hole 3 through threads. A conical ring 11 is fixedly installed on the inner wall of the right side of the fixing sleeve 10.

[0039] It should be noted that by sleeving the T-tube 1 and the drainage tube 6 between the connecting tube 2 and the diversion tube 5, and moving the fixing sleeve 10 in the threaded hole 3, the conical ring 11 fixedly installed in the fixing sleeve 10 pushes the sealing sleeve 8 towards the fixing ring 4, so that the fixing ring 4 squeezes the sealing ring 7. And the sealing ring 7 is made of elastic waterproof material. By horizontally squeezing the sealing ring 7, the longitudinal distance of the sealing ring 7 is increased, so that the sealing ring 7 squeezes the end of the drainage tube 6, avoiding the liquid accumulation from flowing out through the gap between the drainage tube 6 and the diversion tube 5.

[0040] A sealing ring 7 is sleeved on the outer wall of the upper part of the drainage tube 6. A sealing sleeve 8 sleeved on the outer wall of the drainage tube 6 is arranged on the right side of the sealing ring 7. Push the sealing sleeve 8 so that the end of the sealing sleeve 8 pushes the sealing ring 7 to move towards the fixing ring 4, making the sealing ring 7 and the fixing ring 4 in contact. Then, by turning the fixing sleeve 10, the fixing sleeve 10 moves in the threaded hole 3 towards the fixing ring 4. During the movement, when the tapered sleeve 9 moves to abut against the connecting tube 2 and cannot move further, the tapered ring 11 squeezes the tapered sleeve 9. The right end of the sealing sleeve 8 is fixedly installed with a limiting ring having a hollow structure, and the diameter of the limiting ring is equal to the diameter of the connecting tube 2. Due to the equal diameters of the limiting ring and the connecting tube 2, it is convenient to take out the sealing sleeve 8 from the connecting tube 2.

[0041] A tapered sleeve 9 is arranged on the right side of the sealing sleeve 8. The diameter of the left end of the tapered sleeve 9 is equal to the diameter of the connecting tube 2, and the left side wall of the tapered sleeve 9 is in contact with the right side wall of the connecting tube 2.

[0042] The sealing ring 7 is arranged in the connecting tube 2, and the diameter of the sealing ring 7 is equal to the inner diameter of the connecting tube 2. The sealing ring 7 is in contact with the outer wall of the fixing ring 4. Due to the equal diameters of the sealing ring 7 and the inner diameter of the connecting tube 2, when the sealing sleeve 8 squeezes the sealing ring 7, the sealing ring 7 will closely adhere to the outer wall of the drainage tube 6 through the sealing ring 7, firmly fixing the drainage tube 6 by the sealing ring 7. Then, through the reaction force of the connecting tube 2 on the sealing sleeve 8, the position of the tapered sleeve 9 is fixed, causing the sealing sleeve 8 to squeeze the sealing ring 7, and the sealing ring 7 is squeezed onto the fixing ring 4. Since the volume of the sealing ring 7 remains unchanged, when it is squeezed by the sealing sleeve 8, the horizontal spacing of the sealing ring 7 will decrease, resulting in an increase in the vertical spacing of the sealing ring 7. Further, due to the equal diameters of the limiting ring and the connecting tube 2, the inside of the connecting tube 2 is further blocked, further preventing the accumulated fluid from running out of the drainage tube 6.

[0043] The tapered sleeve 9 is arranged in the fixing sleeve 10, and the outer wall of the tapered sleeve 9 fits with the tapered ring 11. By squeezing the tapered sleeve 9 with the tapered ring 11, the tapered sleeve 9 deforms, reducing the spacing between the tapered sleeve 9 and the drainage tube 6, thereby fixing the drainage tube 6 on the diversion tube 5 and preventing the drainage tube 6 from falling off the diversion tube 5. Moreover, due to the tight connection between the drainage tube 6 and the diversion tube 5, it is avoided that the drainage tube 6 falls off the diversion tube 5 when the patient moves casually, increasing the mobility of the patient and eliminating the need to always be careful about the drainage tube 6 falling off.

[0044] A valve body 22 is arranged in the connecting tube 2. Two symmetrically arranged threaded rods 23 are fixedly installed on the outer wall of the valve body 22. Threaded rod sleeves 24 are sleeved on the outer walls of the two threaded rods 23 as shown in the appendix Figure 9As shown in the figure, by turning the threaded rod sleeve 24, the threaded rod sleeve 24 rotates on the threaded rod 23, causing the threaded rod sleeve 24 to move vertically upward. The top end of the threaded rod sleeve 24 is placed in the limit hole 26 to limit the knob 25 and prevent the knob 25 from driving the sphere 32 to rotate.

[0045] A circular rotation groove 28 is formed in the valve body 22. A connecting rod 27 is rotatably arranged in the rotation groove 28. The upper end of the connecting rod 27 is fixedly installed with a knob 25. Limit holes 26 that match the threaded rod sleeve 24 are provided on both sides of the knob 25 directly above the threaded rod sleeve 24.

[0046] A pipe body 29 arranged in the diversion pipe 5 is fixedly installed in the valve body 22. A flow cavity 30 that penetrates the pipe body 29 horizontally is formed in the pipe body 29. A sphere 32 fixedly installed at the bottom end of the connecting rod 27 is arranged in the flow cavity 30. A flow hole 33 is formed in the sphere 32. An anti-leakage gasket 31 that is in contact with the sphere 32 is fixedly installed in the flow cavity 30. Since the flow hole 33 is parallel to the flow cavity 30, the accumulated liquid flows in the flow hole 33. The flow hole 33 and the flow cavity 30 are arranged perpendicular to each other and cooperate with the anti-leakage gasket 31 to prevent the accumulated liquid from flowing out of the flow hole 33.

[0047] The functional principle of the present invention can be described through the following operation methods:

[0048] By sleeving the fixed sleeve 10, the tapered sleeve 9, the sealing sleeve 8, and the sealing ring 7 on the T-shaped pipe 1 and the drainage pipe 6 in sequence, then sleeving the T-shaped pipe 1 and the drainage pipe 6 on both ends of the diversion pipe 5, then making the ends of the T-shaped pipe 1 and the drainage pipe 6 contact the fixed ring 4, then pushing the sealing sleeve 8, so that the end of the sealing sleeve 8 pushes the sealing ring 7 to move towards the fixed ring 4, making the sealing ring 7 contact the fixed ring 4, and then by turning the fixed sleeve 10, the fixed sleeve 10 moves towards the fixed ring 4 in the threaded hole 3, so that the tapered ring 11 in the fixed sleeve 10 pushes the tapered sleeve 9 to move synchronously. When the left end of the tapered sleeve 9 contacts the sealing sleeve 8, due to the reaction force of the connecting pipe 2 on the sealing sleeve 8, the position of the tapered sleeve 9 is fixed, and the sealing sleeve 8 squeezes the sealing ring 7, making the sealing ring 7 be squeezed onto the fixed ring 4. Since the volume of the sealing ring 7 remains unchanged, when it is squeezed by the sealing sleeve 8, the horizontal spacing of the sealing ring 7 will decrease, resulting in an increase in the vertical spacing of the sealing ring 7, so that the sealing ring 7 squeezes the drainage pipe 6 to prevent the accumulated liquid from flowing out of the gap between the drainage pipe 6 and the diversion pipe 5. Continuing to turn the fixed sleeve 10, the tapered ring 11 in the fixed sleeve 10 squeezes the tapered sleeve 9, causing the inner diameter of the tapered sleeve 9 to decrease, thereby firmly fixing the drainage pipe 6 on the diversion pipe 5 to prevent the drainage pipe 6 from falling off the diversion pipe 5;

[0049] When it is necessary to adjust the height of the liquid collection bottle 12, the driving motor 18 is turned on, so that the driving motor 18 drives the lead screw 17 to rotate, causing the threaded sleeve 19 to slide up and down in the limiting groove 16, and the connecting block 21 fixedly connected to the side wall of the threaded sleeve 19 to slide up and down in the sliding groove 20, thereby adjusting the height of the liquid collection bottle 12 on the tray 13;

[0050] When the patient needs to pull out the drainage tube 6, by rotating the knob 25, the knob 25 drives the connecting rod 27 to rotate synchronously in the rotating groove 28, so that the bottom end of the connecting rod 27 drives the sphere 32 to rotate synchronously, causing the flow hole 33 opened in the sphere 32 to rotate by 90 degrees, making the flow hole 33 perpendicular to the flow cavity 30. Then, in cooperation with the anti-leakage gasket 31 being in close contact with the surface of the sphere 32, it is avoided that the accumulated liquid flows in the flow cavity 30. With the two limiting holes 26 on the knob 25 placed directly above the two threaded rod sleeves 24, and then by screwing the threaded rod sleeves 24, the threaded rod sleeves 24 move upward into the limiting holes 26 to limit the knob 25, preventing the knob 25 from rotating and driving the sphere 32 to rotate, so that the accumulated liquid flows in the flow hole 33.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A T-tube drainage device, comprising a T-tube (1), characterized in that, A diversion tube (5) is sleeved at the bottom of the T-tube (1). A fixing ring (4) is fixedly installed on the outer wall of the middle part of the diversion tube (5). A connecting pipe (2) is fixedly installed on the outer wall of the fixing ring (4). A drainage tube (6) for discharging the accumulated liquid in the T-tube (1) is arranged between the inside of the connecting pipe (2) and the right end of the diversion tube (5). The bottom of the drainage tube (6) is fixedly connected with a liquid collection bottle (12) for collecting the accumulated liquid discharged from the drainage tube (6). A tray (13) with an upper opening is arranged at the bottom of the liquid collection bottle (12). A connecting block (21) is fixedly installed on the right side wall of the tray (13). A driving mechanism for driving the connecting block (21) to move up and down is arranged at the end of the connecting block (21).

2. The T-tube drainage device according to claim 1, characterized in that, The driving mechanism includes a threaded sleeve (19) fixedly connected with the right end of the connecting block (21). A lead screw (17) is sleeved in the threaded sleeve (19) through threads. A base (15) is arranged at the bottom of the lead screw (17). A limiting post (14) is fixedly installed on the upper part of the base (15). A limiting groove (16) is opened in the limiting post (14). A driving motor (18) is arranged at the upper end of the limiting groove (16). A sliding groove (20) communicating with the limiting groove (16) is opened on the side wall of the limiting post (14).

3. The T-tube drainage device according to claim 2, characterized in that, The threaded sleeve (19) is slidably arranged in the limiting groove (16). The driving motor (18) is fixedly installed at the top of the limiting groove (16). The bottom end of the lead screw (17) is rotatably installed on the base (15). The connecting block (21) is slidably arranged in the sliding groove (20).

4. The T-tube drainage device according to claim 1, characterized in that, A fixing ring (4) is fixedly installed on the outer wall of the middle part of the diversion tube (5). A connecting pipe (2) is fixedly installed on the outer wall of the fixing ring (4). Threaded holes (3) are opened on the outer walls of both sides of the connecting pipe (2). Fixing sleeves (10) are sleeved on the outer walls of the threaded holes (3) through threads. A conical ring (11) is fixedly installed on the inner wall of the right side of the fixing sleeve (10).

5. The T-tube drainage device according to claim 1, wherein, A sealing ring (7) is sleeved on the outer wall of the upper part of the drainage tube (6). A sealing sleeve (8) sleeved on the outer wall of the drainage tube (6) is arranged on the right side of the sealing ring (7). A limiting ring with a hollow structure is fixedly installed at the right end of the sealing sleeve (8). The diameter of the limiting ring is equal to the diameter of the connecting pipe (2).

6. The T-tube drainage device according to claim 5, characterized in that, A conical sleeve (9) is arranged on the right side of the sealing sleeve (8). The diameter of the left end of the conical sleeve (9) is equal to the diameter of the connecting pipe (2). The left side wall of the conical sleeve (9) is attached to the right side wall of the connecting pipe (2).

7. The T-tube drainage device according to claim 5, characterized in that, The sealing ring (7) is arranged in the connecting pipe (2). The diameter of the sealing ring (7) is equal to the aperture of the connecting pipe (2). The sealing ring (7) is attached to the outer wall of the fixing ring (4).

8. The T-tube drainage device according to claim 6, wherein The conical sleeve (9) is arranged in the fixing sleeve (10). The outer wall of the conical sleeve (9) is fitted with the conical ring (11).

9. A T-tube drainage device according to claim 1, characterized in that, A valve body (22) is arranged in the connecting pipe (2). Two symmetrically arranged threaded rods (23) are fixedly installed on the outer wall of the valve body (22). Threaded rod sleeves (24) are sleeved on the outer walls of the two threaded rods (23) through threads.

10. A T-tube drainage device according to claim 9, characterized in that, A circular rotation groove (28) is formed in the valve body (22). A connecting rod (27) is rotatably arranged in the rotation groove (28). A knob (25) is fixedly installed at the upper end of the connecting rod (27). Limiting holes (26) that are adapted to the threaded rod sleeve (24) are formed above the threaded rod sleeve (24) on both sides of the knob (25). A pipe body (29) disposed in the diversion pipe (5) is fixedly installed in the valve body (22). A flow cavity (30) that transversely penetrates the pipe body (29) is formed in the pipe body (29). A sphere (32) fixedly installed at the bottom end of the connecting rod (27) is disposed in the flow cavity (30). A flow hole (33) is formed in the sphere (32). A leak-proof gasket (31) that is in contact with the sphere (32) is fixedly installed in the flow cavity (30).

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