Anti-blocking flow guide pipe

Abstract

The utility model relates to an anti-blocking flow guide tube, and belongs to the technical field of medical instruments. Comprising a main pipe body which is provided with an inner wall and defines a main pipe cavity; at least part of the anti-blocking core is coaxially arranged in the main pipe cavity of the main pipe body, and the anti-blocking core is constructed to be capable of generating axial deformation; the anti-blocking core is provided with an outer surface with at least one corrugated section, and the outer surface and the inner wall of the main pipe body jointly define an annular cavity used for draining media. The axial deformation of the anti-blocking core is used for removing or inhibiting blockage formed in the annular cavity through the mechanical interaction between the outer surface of the corrugated section of the anti-blocking core and sediments in the annular cavity. The problem that in the prior art, a catheter is prone to being blocked is solved, long-term effectiveness of drainage is guaranteed, infection risks and pains of patients are reduced, and burdens of medical staff are relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to an anti-blocking guide tube. Background Art

[0002] Medical drainage tubes are a type of medical device that is widely used in clinical practice. After surgery, infection treatment, or in the case of certain organ dysfunction, specific parts of the human body (such as surgical wounds, chest cavity, abdominal cavity, bladder, etc.) may produce or accumulate excess fluid (such as blood, serum, pus, urine, exudate, etc.) or gas. These accumulated fluids or gases will not only compress surrounding tissues and organs, affecting their normal functions, but may also become a breeding ground for bacteria, causing infection and abscess formation, which will seriously affect the patient's recovery process and may lead to serious complications.

[0003] However, existing medical drainage tubes generally face a severe technical problem during use - lumen blockage. Since the drainage medium usually contains viscous or easily coagulated components such as blood, fibrin, tissue debris, pus, etc., these components are easily deposited and coagulated on the inner wall of the catheter, and gradually accumulate to form a blockage. Once the drainage tube is blocked, its drainage function will be greatly reduced or even completely ineffective, resulting in the recurrence of fluid or gas accumulation problems, making the treatment purpose of the drainage tube impossible to achieve. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, the utility model provides an anti-clogging guide pipe.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] Provided is an anti-clogging flow guide tube, comprising:

[0007] A main body having an inner wall and defining a main cavity;

[0008] An anti-blocking core, the anti-blocking core is at least partially coaxially disposed inside the main cavity of the main pipe body and is configured to be able to undergo axial deformation;

[0009] Wherein, the anti-blocking core has an outer surface with at least one corrugated section, and the outer surface and the inner wall of the main pipe body together define an annular cavity for draining the medium;

[0010] The axial deformation of the anti-blocking core interacts mechanically with the sediment in the annular cavity through the outer surface of the corrugated section, so as to remove or inhibit blockage formed in the annular cavity.

[0011] Preferably, the main body comprises:

[0012] One proximal end;

[0013] The proximal end is adapted to be fitted with an operating part, and the operating part is configured to allow axial deformation of the anti-blocking core to be induced from the outside.

[0014] Preferably, the proximal end has:

[0015] A first branch and a second branch;

[0016] Wherein, the first branch is adapted to be fitted with the operating part;

[0017] Wherein, the second branch is adapted to be connected to an external drainage system and is configured to be in fluid communication with the annular cavity for discharging the medium drained through the annular cavity.

[0018] Preferably, the operating part includes:

[0019] A connection base, and the connection base is adapted to form a sealed connection with the first branch of the main body;

[0020] Moreover, the connection base has an elastic end wall;

[0021] A driving member, and the driving member is disposed on the surface of the elastic end wall located in the external environment;

[0022] Wherein, the proximal end of the anti-blocking core is fixedly connected to the surface of the elastic end wall located inside the main body.

[0023] Preferably, the main body has:

[0024] A distal end, and the distal end is closed;

[0025] Moreover, at least one drainage opening is formed on the side wall of the distal end, and the drainage opening is in fluid communication with the annular cavity.

[0026] Preferably, the distal end of the anti-blocking core has a rotating member, and the rotating member rotatably connects the distal end of the anti-blocking core to the distal end of the main body so that the anti-blocking core can rotate relative to the main body.

[0027] Preferably, the rotating member includes:

[0028] A mounting ring, and the mounting ring is mounted to the inner wall or end of the distal end of the main body;

[0029] A rotating ring, and the rotating ring forms a rotational fit with the mounting ring, and the distal end of the anti-blocking core is fixedly connected to the rotating ring.

[0030] Preferably, the elastic end arm of the connection base includes:

[0031] A flexible annular corrugated part, whose outer edge is sealingly connected to the inner wall of the connection base;

[0032] A rigid central hub, which is arranged at the center of the annular corrugated part, and whose outer edge is sealingly connected to the inner edge of the annular corrugated part;

[0033] Wherein, the central hub is configured to be rotatable relative to the connection base, the driving member is connected to the outer surface of the central hub, and the proximal end of the anti-blocking core is connected to the inner surface of the central hub.

[0034] Preferably, a valve or a pipe clamp is provided on the second branch of the main pipe body for controlling the fluid on-off of the annular cavity.

[0035] Preferably, the inner wall of the main pipe body and / or the outer surface of the anti-blocking core is coated with an anti-adhesion coating or a hydrophilic coating.

[0036] The present utility model provides an anti-blocking diversion tube, and the beneficial effects of the present utility model are embodied in:

[0037] The anti-blocking diversion tube of the present utility model provides an active and repeatable internal cleaning mechanism through a built-in axially deformable corrugated anti-blocking core. Without disconnecting the drainage system or using additional flushing equipment, the operator can conveniently and effectively dredge the drainage channel, thus solving the problem of easy blockage of the diversion tube in the prior art, ensuring the long-term effectiveness of drainage, reducing the infection risk and pain of patients, and reducing the burden on medical staff. Brief Description of the Drawings

[0038] Figure 1 is the front view of the anti-blocking diversion tube proposed by the present utility model;

[0039] Figure 2 is one of the cross-sectional views of the anti-blocking diversion tube proposed by the present utility model;

[0040] Figure 3 is the second cross-sectional view of the anti-blocking diversion tube proposed by the present utility model;

[0041] Figure 4 is Figure 3 the partial enlarged schematic view at A;

[0042] Figure 5 is the connection schematic diagram of the anti-blocking core and the rotating ring in the anti-blocking diversion tube proposed by the present utility model;

[0043] Figure 6 is the connection schematic diagram of the annular corrugated part and the central hub in the anti-blocking diversion tube proposed by the present utility model.

[0044] Description of the Reference Numerals:

[0045] 1. Main body; 101. Proximal end; 1011. First branch; 1012. Second branch; 102. Distal end; 1021. Drainage opening; 2. Anti-blocking core; 201. Corrugated section; 3. Annular cavity; 4. Operating part; 401. Connecting base; 4011. Annular corrugated part; 4012. Central hub; 402. Driving part; 5. Rotating part; 501. Mounting ring; 502. Rotating ring. Detailed implementation mode

[0046] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0047] Please refer to Figures 1 - 6 As shown, the specific embodiments provided by the present invention are as follows:

[0048] As Figures 1 to 4 As shown, an embodiment of the present invention provides an anti-blocking catheter, and the catheter includes a main body 1 and an anti-blocking core 2 disposed inside the main body 1.

[0049] Specifically, the main body 1 is the main structure of the catheter, which is a flexible long tube with a hollow structure. In practical applications, the main body 1 can be made of medical-grade biocompatible materials, such as medical silicone, polyurethane, polyvinyl chloride, etc., to ensure good safety, flexibility and chemical stability when implanted into the human body.

[0050] Among them, the main body 1 has an inner wall, and the inner wall defines a main lumen penetrating its length. At the same time, the main body 1 has a proximal end 101, that is, the end usually connected to external equipment and operated by medical staff, and a distal end 102, that is, the end usually placed at the target site in the patient's body.

[0051] The anti-blocking core 2 at least partially, preferably mostly penetrates the main lumen, and is disposed coaxially inside the main lumen. Among them, the anti-blocking core 2 is configured to be able to undergo axial deformation. This means that the anti-blocking core 2 itself has elasticity and can be compressed or stretched along its central axis direction under the action of external force, and can restore its original length and shape when the external force is removed. To achieve this function, the anti-blocking core 2 can be made of a highly elastic biocompatible material.

[0052] To achieve the functions of drainage and anti-blockage, the anti-blocking core 2 has an outer surface, and at least one section of this outer surface, preferably most of its working section, is formed as a corrugated section 201. The corrugated section 201 can be composed of a series of continuous, axially distributed annular corrugations, or it can be a continuous spiral corrugation.

[0053] In this embodiment, an annular cavity 3 is naturally formed between the inner wall of the main body 1 and the outer surface of the anti-blocking core 2. This annular cavity 3 is the main channel for the drainage tube to drain media (such as blood, pus, exudate, etc.). The medium to be drained enters from the drainage inlet at the distal end 102 of the main body 1, flows through this annular cavity 3, and finally exits from the drainage outlet at the proximal end 101.

[0054] More specifically, during the drainage process, deposits (such as fibrin, blood clots, tissue debris, etc.) in the drainage medium will inevitably adhere to and accumulate on the inner surface of the annular cavity 3, that is, on the inner wall of the main body 1 and the outer surface of the anti-blocking core 2. When these deposits accumulate to a certain extent, it will cause the effective flow area of the annular cavity 3 to decrease or even be completely blocked, resulting in the failure of drainage.

[0055] Based on this, when anti-blocking operations or periodic maintenance are required, the operator can apply an axial force (thrust or pull) to the anti-blocking core 2. Since the anti-blocking core 2 is configured to be axially deformable, this force will cause it to be axially compressed or stretched.

[0056] Thus, the axial deformation of the anti-blocking core 2 will directly cause the pitch of the corrugations in its corrugated section 201 to change dynamically in terms of density. For example, when the anti-blocking core 2 is axially compressed, its corrugations will become denser; when it is axially stretched, its corrugations will become sparser. It is this dynamic change of the corrugations that causes mechanical interaction between the outer surface of the corrugated section 201 and the deposits adhering to the annular cavity 3. This mechanical interaction can be in various forms such as extrusion, scraping, shearing, etc.

[0057] This mechanical interaction can effectively break up and peel off the already adhered or solidified deposits. The removed blockages will be re-suspended in the drainage medium and be smoothly discharged out of the body along with the subsequent fluid.

[0058] Generally speaking, the anti-blocking drainage tube of the present utility model provides an active and repeatable internal cleaning mechanism through a built-in axially deformable corrugated anti-blocking core 2. The operator can conveniently and effectively dredge the drainage channel (annular cavity 3) without disconnecting the drainage system or using additional flushing equipment, thus solving the problem of easy blockage of the drainage tube in the prior art, ensuring the long-term effectiveness of drainage, reducing the infection risk and pain of patients, and alleviating the burden on medical staff.

[0059] In this embodiment, the main body 1 includes a proximal end 101 and a distal end 102. The proximal end 101 is the part that remains outside the patient's body for medical staff to connect and operate. In order to conveniently and reliably cause the anti-blocking core 2 to undergo axial deformation, the proximal end 101 of the main body 1 is configured to be suitable for assembling an operating part 4.

[0060] Specifically, for example, the proximal end 101 can be formed into a port with standard medical threads, a Luer connector, or a snap-in interface. Such a standardized interface enables the operating part 4 to be conveniently installed on the proximal end 101 of the main body 1 and disassembled when needed. In some other embodiments, the operating part 4 can also be a structure integrally formed with the proximal end 101 of the main body 1.

[0061] The operating part 4 is an interface for the user (such as a doctor or a nurse) to interact with this anti-blocking drainage tube to achieve the anti-blocking function. Its function is configured to allow axial deformation of the anti-blocking core 2 to be induced from the outside.

[0062] In a specific embodiment, the operating part 4 can be a handheld driving device. The device internally has a mechanism that can be connected to or interact with the proximal end of the anti-blocking core 2. When medical staff needs to perform the operation of clearing blockage and preventing blockage, by manipulating the operating part 4, for example, by pressing a button, sliding a slider, rotating a handle, etc., the operating part 4 will apply a controllable axial force to the proximal end of the anti-blocking core 2.

[0063] Since the anti-blocking core 2 itself is configured to have the characteristics of elasticity and axial deformability, this axial force applied by the operating part 4 will cause it to undergo overall axial compression or tension inside the main tube cavity, thereby realizing the aforementioned anti-blocking function of clearing the sediment in the annular cavity 3 through the mechanical interaction of the corrugated section 201.

[0064] For the distal end 102, the distal end 102 is the working end placed inside the patient's body and directly in contact with the medium to be drained. In this preferred embodiment, the tip of the distal end 102 is closed. Preferably, the distal end 102 is a smooth conical head, which can reduce the puncture and tearing damage to human tissues during the process of inserting the catheter, improving the safety of the catheterization operation. In addition, at least one drainage opening 1021 is formed on the side wall of the distal end 102. In some embodiments, a plurality of drainage openings 1021 can be arranged axially or circumferentially along the side wall of the distal end 102. Arranging a plurality of openings can provide redundant drainage paths, so that even if a certain opening is temporarily covered by local tissues, other openings can still continue to work, thus ensuring the continuity and stability of drainage.

[0065] Therefore, the external medium to be drained first enters the inside of the catheter through one or more drainage openings 1021 on the side wall of the distal end 102 of the main body 1 and is directly guided into the annular cavity 3. Subsequently, the medium flows along the anti-blocking core 2 in the annular cavity 3 towards the proximal end 101 and is finally discharged from the proximal end 101.

[0066] In a specific embodiment, the inner wall of the main body 1 and / or the outer surface of the anti-blocking core 2 is coated with an anti-adhesion coating or a hydrophilic coating.

[0067] In this embodiment, the proximal end 101 of the main body 1 is formed into a bifurcated structure with two branch channels, similar to a "Y" - shaped joint.

[0068] Specifically, the proximal end 101 has a first branch 1011 and a second branch 1012. This dual - branch structure distributes different functions to independent physical ports, making the structure of the whole device clearer.

[0069] In detail, the first branch 1011 is a mechanical operation channel dedicated to realizing the anti - blocking function. As before, the first branch 1011 is adapted to assemble the operation part 4. The proximal part of the anti - blocking core 2 extends from the main body cavity to the first branch 1011 so as to be connected and linked with the operation part 4 installed here. By concentrating the anti - blocking operation function entirely on the first branch 1011, the stability of mechanical operation can be ensured, and this operation will not interfere with the normal discharge of the drained liquid.

[0070] The second branch 1012 serves as a dedicated fluid drainage channel. The second branch 1012 is fluid - connected to the annular cavity 3 in structure, which means that the drainage medium entering the annular cavity 3 from the distal end 102 of the main body 1 will be guided and collected to this second branch 1012 for discharge. At the same time, the second branch 1012 is adapted to connect an external drainage system. In clinical applications, medical staff can connect a drainage bag, a negative - pressure drainage bottle or other fluid collection / processing devices to the port of this second branch 1012 for discharging the medium drained through the annular cavity 3. The port of the second branch 1012 usually also adopts a standard medical connector to ensure the universality and tightness of the connection.

[0071] In a specific embodiment, a valve or a pipe clamp is provided on the second branch 1012 of the main body 1.

[0072] For example, it can be an integrated on - off valve or a three - way valve. By rotating the switch handle of the valve, it is convenient to switch between the open and closed states. If a three - way valve is adopted, in addition to controlling the on - off, it can also provide an additional port for connecting a syringe for pipeline flushing, drug injection or aseptic extraction of drainage fluid samples for testing, greatly enhancing the functionality of the catheter.

[0073] Alternatively, it can also be a pinch valve provided on the hose section, which opens or closes the fluid passage by pressing or releasing a mechanical component.

[0074] Alternatively, it can be a common slide clamp on the catheter, which clamps or opens the pipeline by sliding a plastic block with a narrow channel on the pipe wall.

[0075] Furthermore, it can also be a roller clamp, and stepless adjustment of the flow rate between fully closed and fully open can be achieved by rolling the roller.

[0076] When it is necessary to replace the external drainage bag or drainage bottle, medical staff can first close this valve or clamp the pipeline. This can effectively prevent the drainage fluid from overflowing from the catheter or drainage bag at the moment of disconnection, avoid polluting the environment and the patient's clothes, and also reduce the risk of medical staff coming into contact with potentially infectious body fluids.

[0077] In this embodiment, the operation part 4 includes a connection base 401 and a driving part 402.

[0078] Specifically, the connection base 401 is the main body and shell of the operation part 4, and it is configured to be able to form a firm sealed connection with the first branch 1011 of the aforementioned main pipe body 1. This sealed connection can be achieved in various ways. For example, threads can be provided at the interface between the connection base 401 and the first branch 1011 and an O-ring can be fitted, or a standard Luer lock connector can be used to ensure that fluid leakage does not occur at this connection under any operation.

[0079] The connection base 401 has an elastic end wall. The elastic end wall can be understood as a flexible thin wall, which is integrally formed or connected to the end of the connection base 401 in a sealed manner, thereby completely enclosing the first branch 1011 of the main pipe body 1 to form a sealed barrier. The elastic end wall is preferably made of a medical-grade elastomer material, such as silicone rubber, which can not only ensure good biocompatibility but also has excellent elasticity and fatigue resistance.

[0080] The driving part 402 is the part directly operated by the user's hand, and it is arranged on the surface of the elastic end wall located in the external environment (i.e., the outer surface). The driving part 402 can be in various shapes convenient for applying force, such as a button, a finger pressure cap, a pull ring, or a handle that can be pinched.

[0081] Correspondingly, the proximal end of the anti-blocking core 2 is fixedly connected to the surface of the elastic end wall located inside the main pipe body 1 (i.e., the inner surface). This fixed connection can be achieved by insert molding, using a medical-grade adhesive to bond, etc., to ensure the firmness of the connection and ensure that the force can be effectively transmitted from the elastic end wall to the anti-blocking core 2.

[0082] When anti-clogging operation is required for the diversion tube, medical staff apply an axial force to the external driving member 402 (for example, press down the driving member 402 with a finger). This force directly acts on the elastic end wall, causing it to undergo inward elastic deformation, that is, the function of removing blockages through the deformation of the corrugated section 201.

[0083] When the external force is withdrawn, due to the elastic restoring force of the elastic end wall itself, it will rebound to its original position and drive the anti-clogging core 2 to return to its original state. Similarly, if the driving member 402 is pullable, axial tensile deformation of the anti-clogging core 2 can be achieved.

[0084] In this embodiment, the distal end of the anti-clogging core 2 has a rotating member 5. The rotating member 5 is used to rotatably connect the distal end of the anti-clogging core 2 to the distal end 102 of the main body 1. This means that when a torque is applied to the anti-clogging core 2 from the proximal end 101 of the diversion tube, the entire anti-clogging core 2 can rotate like a stirring rod on the central axis of the annular cavity 3 inside the main body cavity, while the main body 1 itself remains stationary. Of course, the rotation angle of the anti-clogging core 2 is relatively small, such as a small angle rotation between 10° and 45°.

[0085] From this, it can be found that when rotational cleaning is required, the operator drives the anti-clogging core 2 to rotate through the operating part 4 at the proximal end 101. When the outer surface of the corrugated section 201 on the anti-clogging core 2 rotates, it can scrape the deposited biofilm or early deposits, improving the cleaning and anti-clogging effects.

[0086] As Figure 4 and Figure 5 shown, in this embodiment, the rotating member 5 specifically includes a mounting ring 501 and a rotating ring 502.

[0087] Specifically, the mounting ring 501 is fixedly installed on the inner wall or end of the distal end 102 of the main body 1. The rotating ring 502 forms a rotational fit with the mounting ring 501. Among them, the mounting ring 501 and the rotating ring 502 can be coupled together through mutually matching annular grooves and flanges, so that they cannot be separated axially, but can rotate relative to each other with low friction. In addition, the distal end of the anti-clogging core 2 is fixedly connected to the rotating ring 502.

[0088] As Figure 6 shown, in this embodiment, the elastic end wall of the connection base 401 includes a flexible annular corrugated portion 4011 and a rigid central hub 4012.

[0089] The shape of the flexible annular corrugated portion 4011 is similar to an annular and relatively thin corrugated wall. Its outer edge is hermetically connected to the inner wall of the connection base 401 by injection molding, bonding or other reliable means. Its inner edge is connected to the rigid central hub 4012. Due to the flexibility of its own material and the corrugated structure, the annular corrugated portion 4011 allows a certain range of axial reciprocating motion and a certain angle of rotation in its central region, that is, at the connection with the central hub 4012.

[0090] The rigid central hub 4012 is a disk-shaped or hub-shaped component with a certain rigidity, arranged at the center of the annular corrugated portion 4011, and its outer edge is hermetically connected to the inner edge of the annular corrugated portion 4011. The central hub 4012 physically isolates the inner and outer sides of the elastic end wall. In addition, the driving member 402 (the part operated by the user externally) is fixed to the outer surface of the rigid central hub 4012. The proximal end of the anti-blocking core 2 is fixedly connected to the inner surface of the rigid central hub 4012.

[0091] When the user axially pushes or pulls the external driving member 402, the force is transmitted to the rigid central hub 4012. The central hub 4012 then undergoes an axial displacement, and this displacement causes the flexible annular corrugated portion 4011 to be correspondingly compressed or stretched. Since the anti-blocking core 2 is connected to the central hub 4012, the axial displacement of the central hub 4012 is directly converted into the axial deformation of the anti-blocking core 2.

[0092] On the other hand, when the user rotates the external driving member 402, the torque is transmitted to the rigid central hub 4012 and drives it to rotate. Since the flexible annular corrugated portion 4011 connects the central hub 4012 and the fixed base, it can allow this torsion, so that the central hub 4012 and the anti-blocking core 2 fixed thereto can freely rotate relative to the main pipe body 1.

[0093] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clogging-proof diversion pipe, characterized in that, Comprising: A main body, the main body having an inner wall and defining a main cavity; An anti-blocking core, the anti-blocking core being at least partially coaxially disposed inside the main cavity of the main body and configured to be axially deformable; Wherein, the anti-blocking core has an outer surface with at least one corrugated section, and this outer surface and the inner wall of the main body jointly define an annular cavity for draining the medium; Wherein, the axial deformation of the anti-blocking core mechanically interacts with the sediment in the annular cavity through the outer surface of its corrugated section to remove or inhibit the blockage formed in the annular cavity.

2. The anti-clogging diversion pipe according to claim 1, wherein The main body includes: A proximal end; The proximal end is adapted to be assembled with an operating part, and the operating part is configured to allow the axial deformation of the anti-blocking core to be triggered from the outside.

3. The anti-clogging diversion tube according to claim 2, characterized in that, The proximal end has: A first branch and a second branch; Wherein, the first branch is adapted to be assembled with the operating part; Wherein, the second branch is adapted to be connected to an external drainage system and is configured to be in fluid communication with the annular cavity for discharging the medium drained through the annular cavity.

4. The anti-blocking diversion pipe according to claim 3, characterized in that, The operating part includes: A connection base, the connection base being adapted to form a sealed connection with the first branch of the main body; And, the connection base has an elastic end wall; A driving member, the driving member being disposed on the surface of the elastic end wall located in the external environment; Wherein, the proximal end of the anti-blocking core is fixedly connected to the surface of the elastic end wall located inside the main body.

5. The anti-clogging diversion pipe according to claim 4, wherein The main body has: A distal end, the distal end being closed; And, at least one drainage opening is formed on the side wall of the distal end, and the drainage opening is in fluid communication with the annular cavity.

6. The anti-blocking drainage pipe according to claim 5, characterized in that The distal end of the anti-blocking core has a rotating member, and the rotating member rotatably connects the distal end of the anti-blocking core to the distal end of the main body so that the anti-blocking core can rotate relative to the main body.

7. The anti-clogging diversion pipe according to claim 6, characterized in that, The rotating member includes: A mounting ring, the mounting ring being mounted to the inner wall or end of the distal end of the main body; A rotating ring, the rotating ring forming a rotational fit with the mounting ring, and the distal end of the anti-blocking core is fixedly connected to the rotating ring.

8. The anti-clogging diversion tube according to claim 7, characterized in that, The elastic end arm of the connection base includes: A flexible annular corrugated portion, the outer edge of which is hermetically connected to the inner wall of the connection base; A rigid central hub, which is disposed at the center of the annular corrugated portion, and the outer edge of which is hermetically connected to the inner edge of the annular corrugated portion; Wherein, the central hub is configured to be able to rotate relative to the connection base, the driving member is connected to the outer surface of the central hub, and the proximal end of the anti-blocking core is connected to the inner surface of the central hub.

9. The anti-blocking drainage pipe according to claim 8, characterized in that A valve or a pipe clamp is provided on the second branch of the main body to control the fluid on-off of the annular cavity.

10. The anti-blocking drainage pipe according to any one of claims 1 to 9, characterized in that The inner wall of the main body and / or the outer surface of the anti-blocking core is coated with an anti-adhesion coating or a hydrophilic coating.

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