Anti-blocking drainage device for operation

Abstract

The invention relates to the technical field of negative pressure drainage, and discloses a surgical anti-blocking drainage device which comprises a drainage tube. The distribution mechanism comprises a communicating pipe, a distribution pipe, a liquid passing pipe and a butt-joint pipe which are sequentially connected in a penetrating mode, the liquid outlet end of the butt-joint pipe is connected with a first hose in a penetrating mode, a flow dividing pipe is arranged on the distribution pipe in a penetrating mode, and the liquid outlet end of the flow dividing pipe is connected with a second hose in a penetrating mode; the reversing mechanism is arranged in the distribution pipe and the liquid passing pipe, the reversing mechanism comprises a plugging block movably arranged in the distribution pipe, an arc-shaped bottom plate and a fixing ring fixed in the liquid passing pipe, and when the first hose is in the open state, the second hose is in the closed state. According to the anti-blocking drainage device for the operation, the distribution mechanism and the reversing mechanism are arranged, when the first hose is blocked under the cooperation of the reversing mechanism and the pressure generated during blocking, the drainage path is automatically switched to the second hose, and drainage continuity is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of negative pressure drainage, and in particular to an anti-blocking drainage device for surgery. Background Art

[0002] In the modern medical field, especially during surgery, drainage tubes play a vital role. Drainage tubes mainly rely on the pressure difference between their internal channels and human tissues or body cavities to achieve effective drainage of fluids. During surgery and postoperative treatment, drainage tubes can discharge body fluids (such as exudate, a small amount of blood, etc.) from the body in a timely manner, thereby reducing the adverse effects of effusion on surgical operations and postoperative recovery.

[0003] The existing publication number CN117942436A discloses a negative pressure drainage device for surgical operations, including an extrusion component and a accommodating component, the extrusion component includes a top plate, a telescopic tube, a bottom plate, a first elastic member and a first fixed tube, the outer wall of the first fixed tube is fixedly connected to the top plate, the top plate is fixedly connected to the top of the telescopic tube, the bottom of the telescopic tube is fixedly connected to the bottom plate, and the outer wall of the telescopic tube is sleeved with a first elastic member; the accommodating component includes a accommodating bag, a first fixed tube and a second fixed tube, the accommodating bag is fixedly connected to the first fixed tube, a through hole is provided on the first fixed tube, and the first fixed tube is fixedly connected to the second fixed tube; although the above technical scheme can continuously absorb and drain the liquid through the siphon effect, there is no need to repeatedly compress the top plate, the telescopic tube and the bottom plate to generate negative pressure, and has the advantages of convenience and labor saving.

[0004] In the prior art, the installation of a drainage tube generally includes the following steps: first, according to the patient's specific condition and the part that needs drainage, the target part for the drainage tube to be inserted is determined, the target part is disinfected, and then the drainage tube is placed in the target part that needs drainage, and then the tube is fixed to the skin with sutures or tapes, and finally the other end of the drainage tube is connected to a negative pressure device to form a stable negative pressure environment to drain the accumulated fluid out of the body. However, the working principle of negative pressure drainage is mainly to use the negative pressure generated by the negative pressure device to make the liquid passively flow to the drainage tube along the pressure gradient and be discharged from the body through the pipeline. In actual application, since the drainage liquid usually has a certain viscosity and cohesion, it will flow out of the body with the negative pressure device. As time goes by, these liquids tend to adhere to the inner wall of the drainage tube, causing the inner diameter of the drainage tube to gradually narrow, thus affecting the drainage efficiency. In addition, the drainage fluid often contains granular impurities, such as fibrin blocks, blood clots, and necrotic tissue fragments. When these particles flow in the drainage tube, they may gradually accumulate in certain parts due to the viscosity of the tube wall surface or the cohesiveness of the liquid itself, especially at the corners, interfaces, or areas where the flow rate slows down in the drainage tube. The accumulated liquid cannot be discharged, and pressure will be formed upstream of the drainage tube, causing the liquid to accumulate in the tissue, causing local swelling or pain. Therefore, a new type of surgical anti-blocking drainage device is needed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an anti-blocking drainage device for surgery to solve the problem proposed in the above background technology that the drainage liquid has a certain viscosity and cohesion, accumulates in the drainage tube, causes accumulation in the drainage tube, and causes local swelling or pain in the affected area.

[0006] The present invention provides a surgical anti-blocking drainage device, which adopts the following technical solution:

[0007] A surgical anti-blocking drainage device, comprising:

[0008] A drainage tube, which is used to be inserted into a target part of the human body that needs drainage;

[0009] A distribution mechanism, the distribution mechanism comprises a connecting pipe, a distribution pipe, a liquid-passing pipe and a butt-joint pipe which are connected in sequence, the connecting pipe is connected to the drainage pipe, the liquid outlet end of the butt-joint pipe is connected to a first hose, the distribution pipe is provided with a shunt pipe, the liquid outlet end of the shunt pipe is connected to a second hose, the other ends of the first hose and the second hose are connected to an anti-backflow drainage bag, and the anti-backflow drainage bag is connected to a silicone negative pressure drainage ball;

[0010] A reversing mechanism is arranged in the distribution pipe and the liquid passing pipe. The reversing mechanism includes a blocking block movably arranged in the distribution pipe, an arc-shaped bottom plate and a fixed ring fixed in the liquid passing pipe. An adapter groove corresponding to the blocking block is opened on the side of the fixed ring close to the blocking block. When the blocking block is away from the adapter groove, the arc-shaped bottom plate is located on the liquid inlet end of the shunt pipe. At this time, the first hose is in an open state and the second hose is in a closed state.

[0011] Furthermore, the reversing mechanism further comprises a bracket fixed in the distribution pipe, an abutment column penetrating the bracket, a pressure transmission block connected to one end of the abutment column, and an elastic member arranged on the abutment column, the blocking block is fixed to the other end of the abutment column, and the arc bottom plate and the pressure transmission block are fixedly connected via a vertical sheet;

[0012] Among them, a magnetic sheet is provided on the edge of the sealing block close to the fixed ring side, and another magnetic sheet is provided in the adapter groove. The two magnetic sheets are set as positive and negative poles. When blockage occurs in the first hose, the pressure in the drainage tube gradually increases, and the pressure acts on the pressure transmission block to control the movement of the sealing block and the arc-shaped bottom plate. When the sealing block contacts the adapter groove, the arc-shaped bottom plate is away from the liquid inlet end of the shunt tube. At this time, the first hose is in a closed state and the second hose is in an open state.

[0013] Furthermore, the drainage tube includes a drainage section connected to the connecting tube, an insertion section integrally provided with the drainage section, and a plurality of drainage flow grooves provided on the insertion section, wherein the plurality of drainage flow grooves are evenly distributed in a spiral shape around the drainage end of the insertion section;

[0014] A convex block is integrally arranged in the drainage end of the insertion section, and the convex block is connected to the pressure conduction block through a metal filament.

[0015] Furthermore, the pressure transmission block has a plurality of groups of trapezoidal guide grooves on one side facing the connecting pipe, and the plurality of groups of trapezoidal guide grooves are evenly distributed along the conical surface direction of the pressure transmission block.

[0016] Furthermore, the inner wall of the connecting pipe is arranged in a wave shape.

[0017] Furthermore, an opening is provided at the center of the bracket, a ball is provided in the opening, the abutment column passes through the opening, and a sliding groove is provided on the abutment column to slide with the ball;

[0018] The support is also symmetrically provided with flow channels for drainage fluid to pass through.

[0019] Furthermore, a baffle is symmetrically provided on one side of the arc-shaped bottom plate away from the blocking block, the baffle is fixed in the distribution pipe, and the arc-shaped bottom plate and the baffle are in contact with each other.

[0020] Furthermore, the first hose and the second hose are both provided with a flushing mechanism, and the flushing mechanism includes a liquid inlet pipe which is respectively provided through the first hose and the second hose, and a cover cap which is detachably provided on the liquid inlet pipe.

[0021] Furthermore, the first hose and the second hose are both detachably provided with a bending mechanism, the bending mechanism comprising a connecting plate provided up and down and a fixed wheel and a rotating wheel symmetrically provided on the connecting plate, the fixed wheel is fixed to the connecting plate, the fixed wheel is provided with a swinging plate rotating through a central axis, the other end of the swinging plate is rotatably connected to the rotating wheel through a rotating shaft, and a guide rail for sliding the rotating shaft is provided on the connecting plate;

[0022] The first hose and the second hose are respectively inserted between the corresponding fixed wheel and the rotating wheel, and a limiting block for limiting the first hose and the second hose is also fixed between the connecting plates.

[0023] Furthermore, the central axis passes through the outside of the connecting plate and is fixed with a silicone handle.

[0024] Beneficial effects of the present invention:

[0025] 1. By providing a distribution mechanism and a reversing mechanism, the reversing mechanism cooperates with the pressure generated when the first hose is blocked, so that when the first hose is blocked, the drainage path is automatically switched to the second hose. This process does not require manual intervention, further ensuring the continuity of drainage, effectively avoiding drainage interruption due to blockage, causing adverse consequences such as fluid accumulation, and automatic switching can effectively avoid potential damage to the drainage tube and surrounding tissues caused by high pressure due to blockage, such as tissue compression, etc., thereby improving the safety of the drainage process. Especially for patients who need long-term drainage, channel switching can be completed without interrupting drainage, significantly improving the patient's comfort during treatment.

[0026] 2. By providing a drainage groove, the drainage fluid can enter the insertion section and the drainage section along the spiral drainage groove, thereby increasing the flow path of the drainage fluid at the drainage end of the insertion section, so that the drainage fluid can more fully contact the insertion section, thereby improving the drainage efficiency. At the same time, the spiral setting can also prevent blockage to a certain extent. Even if part of the channel is blocked, the drainage fluid can still continue to flow through other drainage grooves.

[0027] 3. A bending mechanism is provided to bend the first hose and the second hose, thereby changing the shape of the inner cavity, squeezing or loosening the blockage in the tube, so that the blockage attached to the tube wall is detached, thereby restoring the smoothness of the pipeline, and the bending mechanism can be detachably arranged on the first hose and the second hose, and can be reused to avoid waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the three-dimensional structure of the drainage tube, the distribution mechanism, the reversing mechanism, the first hose, the second hose, the flushing mechanism and the bending mechanism of the present invention;

[0030] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the distribution mechanism of the present invention;

[0031] Figure 4 It is an exploded schematic diagram of the three-dimensional structure of the bracket, the abutting column, the elastic member and the fixing ring of the present invention;

[0032] Figure 5 It is a schematic diagram of the front view structure of the bracket of the present invention;

[0033] Figure 6 It is a schematic diagram of the three-dimensional structure of the abutment column and the pressure transmission block of the present invention;

[0034] Figure 7 It is a schematic cross-sectional view of the three-dimensional structure of the distribution pipe of the present invention;

[0035] Figure 8 It is a schematic diagram of the three-dimensional structure of the drainage tube of the present invention;

[0036] Fig. 9 It is a schematic cross-sectional view of the three-dimensional structure of the drainage section, the insertion section, the connecting pipe, the distribution pipe, the liquid passage pipe, the butt joint pipe, the first hose and the second hose of the present invention;

[0037] Fig.10 It is a schematic diagram of the side structural section of the drainage section, the insertion section, the drainage channel, the protrusion, the metal filament and the pressure conduction block of the present invention;

[0038] Fig.11 It is a schematic diagram showing the three-dimensional structure of the drainage channel of the present invention in an open state;

[0039] Fig.12 It is a schematic diagram of a top view of the structure section of the first hose and the bending mechanism of the present invention;

[0040] Fig.13 It is a schematic diagram of the three-dimensional structure of the first hose, the flushing mechanism and the connecting plate of the present invention.

[0041] Fig.14 It is a schematic diagram of the three-dimensional structure of the connecting plate and the limiting block of the present invention.

[0042] In the figure:

[0043] 1. Drainage tube; 11. Drainage section; 12. Insertion section; 13. Drainage flow channel; 14. Bump; 15. Metal filament; 2. Distribution mechanism; 21. Connecting tube; 22. Distribution tube; 23. Liquid passage tube; 24. Butt-joint tube; 25. Diverter tube; 3. Reversing mechanism; 31. Bracket; 311. Opening hole; 312. Ball; 313. Flow channel; 32. Abutment column; 321. Slide groove; 33. Pressure transmission block; 331. Trapezoidal guide groove; 34. Elastic member; 35. Blocking block; 36. Fixing ring; 37. Adapter groove; 38. Magnetic sheet; 39. Arc bottom plate; 391. Vertical sheet; 392. Baffle bar; 4. First hose; 5. Second hose; 6. Anti-backflow drainage bag; 7. Silicone negative pressure drainage ball; 8. Flushing mechanism; 81. Liquid inlet pipe; 82. Cover cap; 9. Bending mechanism; 91. Connecting plate; 911. Limiting block; 92. Fixed wheel; 93. Central axis; 94. Swinging plate; 95. Rotating shaft; 96. Rotating wheel; 97. Guide rail; 98. Silicone handle. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0045] Reference Figure 1-Figure 3 , a surgical anti-blocking drainage device, comprising:

[0046] The drainage tube 1 is used for being inserted into a target part of the human body that needs drainage.

[0047] The distribution mechanism 2 includes a connecting pipe 21, a distribution pipe 22, a liquid-passing pipe 23 and a docking pipe 24 which are connected in sequence. The connecting pipe 21 is connected to the drainage pipe 1. The liquid outlet end of the docking pipe 24 is connected with a first hose 4. The liquid outlet end of the docking pipe 24 and the first hose 4 are detachably connected. A shunt pipe 25 is provided on the distribution pipe 22. The liquid outlet end of the shunt pipe 25 is connected with a second hose 5. The liquid outlet end of the shunt pipe 25 and the second hose 5 are detachably connected. The first hose 4 is a main channel, and the second hose 5 is an auxiliary channel. The first hose 4 and the second hose 5 are both used for negative pressure delivery of drainage fluid. The first hose 4 and the second hose 5 are both provided with a one-way valve. The other ends of the first hose 4 and the second hose 5 are connected with an anti-backflow drainage bag 6. The anti-backflow drainage bag 6 is connected with a silicone negative pressure drainage ball 7. The drainage pipe 1 is guided through the skin and inserted into the human body. For the target part that needs drainage, select a suitable length and place it in the target part, then expose the drainage tube 1 and fix it on the skin with sutures or tape, then connect the drainage tube 1 to the connecting tube 21, and connect one end of the first hose 4 to the liquid outlet end of the docking tube 24, and connect one end of the second hose 5 to the liquid outlet end of the shunt tube 25, then connect the other ends of the first hose 4 and the second hose 5 to the anti-backflow drainage bag 6, and finally connect the anti-backflow drainage bag 6 to the silicone negative pressure drainage ball 7, and squeeze the silicone negative pressure drainage ball 7 to a negative pressure state, and then seal the silicone negative pressure drainage ball 7, and use the negative pressure of the silicone negative pressure drainage ball 7 to make the drainage fluid pass through the drainage tube 1, the distribution mechanism 2, the reversing mechanism 3, the first hose 4 or the second hose 5 in sequence, and after the drainage fluid enters the anti-backflow drainage bag 6, it enters the silicone negative pressure drainage ball 7. After use, the drainage tube 1 can be taken out of the body.

[0048] Through the dual-channel design of the first hose 4 and the second hose 5, when the first hose 4 is blocked, the second hose 5 can be switched to transport the drainage fluid, thereby avoiding drainage interruption and maintaining effective drainage.

[0049] Reference Figure 3-Figure 7, and also includes a reversing mechanism 3, which is arranged in the distribution pipe 22 and the liquid-passing pipe 23. The reversing mechanism 3 includes a bracket 31 fixed in the distribution pipe 22, an abutting column 32 penetrating the bracket 31, a pressure transmission block 33 connected to one end of the abutting column 32, an elastic member 34 arranged on the abutting column 32, a blocking block 35 movably arranged in the distribution pipe 22, an arc-shaped bottom plate 39 fixedly connected to the pressure transmission block 33 through a vertical sheet 391, and a fixing ring 36 fixed in the liquid-passing pipe 23, and a sealing block 35 movably arranged in the distribution pipe 22. The blocking block 35 is fixed to the other end of the abutment column 32, one end of the abutment column 32 is close to the drainage tube 1, and the other end of the abutment column 32 is close to the first hose 4. An adapter groove 37 corresponding to the blocking block 35 is provided on the side of the fixing ring 36 close to the blocking block 35. When the blocking block 35 is away from the adapter groove 37, the arc bottom plate 39 fits with the inner wall of the distribution tube 22, and the arc bottom plate 39 is located at the liquid inlet end of the shunt tube 25. At this time, the first hose 4 is in an open state and the second hose 5 is in a closed state.

[0050] Among them, a magnetic piece 38 is provided on the edge of the blocking block 35 close to the fixed ring 36, and another magnetic piece 38 is provided in the adapter groove 37. The two magnetic pieces 38 are set as positive and negative poles. When the drainage fluid flows in the first hose 4, once a blockage problem occurs, the flow of the drainage fluid is blocked, which will reduce the flow rate in the first hose 4. However, as the drainage fluid in the body continues to pass through the drainage tube 1, the pressure in the drainage tube 1 will gradually increase. If the resistance in the first hose 4 continues to increase, the pressure in the drainage tube 1 will further accumulate. Until it reaches the critical point, the pressure pushes the pressure transmission block 33 to move, and then the abutment column 32 drives the blocking block 35 to move toward the fixed ring 36. Since the arc bottom plate 39 and the pressure transmission block 33 are fixedly connected by the vertical piece 391, when the blocking block 35 contacts the adapter groove 37, the mutual attraction between the magnetic pieces 38 makes the blocking block 35 and The adapter groove 37 is fully fitted, and at the same time, the arc bottom plate 39 is away from the liquid inlet end of the shunt tube 25. At this time, the first hose 4 is in a closed state and the second hose 5 is in an open state, so that the drainage fluid in the drainage tube 1 can enter the second hose 5 through the shunt tube 25 for negative pressure delivery. Through the cooperation of the above-mentioned structure, when the first hose 4 is blocked, the drainage path can be automatically switched to the second hose 5. The whole process does not require manual intervention, further ensuring the continuity of drainage, and effectively avoiding drainage interruption due to blockage, causing adverse consequences such as fluid accumulation. Automatic switching can effectively avoid potential damage to the drainage tube 1 and surrounding tissues caused by high pressure due to blockage, such as tissue compression, etc., thereby improving the safety of the drainage process. Especially for patients who need long-term drainage, channel switching can be completed without interrupting drainage, which significantly improves the patient's comfort during treatment.

[0051] It should be noted that the elastic member 34 can be a spring. When the elastic member 34 is a spring, it is wound around the outside of the abutment column 32, and its two ends are respectively fixed on the bracket 31 and the pressure transmission block 33. After the blockage in the first hose 4 is cleared, the medical staff can remove the connection between the docking tube 24 and the second hose 5, and push the blocking block 35 in the reverse direction to release the magnetic connection between the magnetic sheets 38. At this time, the elastic member 34 is used to control the abutment column 32, the pressure transmission block 33, the blocking block 35 and the adapter groove 37 to reset.

[0052] Among them, an opening 311 is opened at the center of the bracket 31, a ball 312 is arranged in the opening 311, the abutment column 32 passes through the opening 311, and a slide groove 321 is opened on the abutment column 32 to slide with the ball 312. The ball 312 is rotatably set in the opening 311 and is evenly distributed along the circumferential direction of the inner wall of the opening 311. When the pressure transmission block 33 drives the abutment column 32 to move under the push of pressure, the stability and smoothness of the abutment column 32 during movement can be further improved through the sliding cooperation between the ball 312 and the slide groove 321.

[0053] Secondly, the support 31 is symmetrically provided with flow channels 313 for the drainage fluid to pass through.

[0054] Further, see Figure 6 The pressure transmission block 33 has multiple sets of trapezoidal guide grooves 331 on one side facing the connecting pipe 21. The multiple sets of trapezoidal guide grooves 331 are evenly distributed along the conical surface of the pressure transmission block 33. The setting of the trapezoidal guide grooves 331 can effectively guide the pressure, so that the pressure is more evenly distributed on the conical surface of the pressure transmission block 33. The trapezoidal guide grooves 331 gradually narrow toward the blocking block 35, so that the pressure can be gradually concentrated during the transmission process. When the pressure acts on the pressure transmission block 33, it will gradually converge along the trapezoidal guide grooves 331, reducing the dispersion and loss of the pressure during the transmission process, ensuring that the pressure can be transmitted to the target position with higher efficiency.

[0055] Reference Figure 7 A baffle 392 is symmetrically provided on one side of the arc bottom plate 39 away from the blocking block 35. The baffle 392 is fixed in the distribution pipe 22. The arc bottom plate 39 and the baffle 392 abut against each other, and the baffle 392 plays a role in limiting the reset of the arc bottom plate 39.

[0056] Specifically, refer to Figure 3The inner wall of the connecting tube 21 is designed in a wavy shape. When the drainage fluid flows in the connecting tube 21, a pressure difference will be formed between the wave crests and troughs. During normal drainage, this pressure difference will not have a significant effect on the pressure transmission block 33. However, when the pressure in the pressure transmission block 33 increases, the pressure difference between the wave crests and troughs will increase, and work together with the overall increased pressure to push the pressure transmission block 33 to move. In addition, the setting of the wavy connecting tube 21 can cause certain disturbances in the drainage fluid during the flow process, which helps to prevent the components in the drainage fluid from precipitating and adhering to the channel wall, further reducing the possibility of blockage.

[0057] Reference Figure 8-Figure 11 The drainage tube 1 includes a drainage section 11 connected to the connecting tube 21, an insertion section 12 integrally arranged with the drainage section 11, and a plurality of drainage grooves 13 provided on the insertion section 12. The plurality of drainage grooves 13 are evenly distributed in a spiral shape around the drainage end of the insertion section 12. The insertion section 12 is guided through the skin and inserted into the target part of the human body that needs drainage. The leaked part of the insertion section 12 is then fixed to the skin by sutures or tape. The drainage fluid can enter the insertion section 12 and the drainage section 11 through the drainage end of the insertion section 12 and along the spiral drainage grooves 13. The setting of the plurality of drainage grooves 13 increases the flow path of the drainage fluid at the drainage end of the insertion section 12, so that the drainage fluid can more fully contact the insertion section 12 and improve the drainage efficiency. At the same time, the spiral setting can also prevent blockage to a certain extent. Even if part of the channel is blocked, the drainage fluid can continue to flow through other drainage grooves 13.

[0058] Furthermore, a protrusion 14 is integrally provided in the drainage end of the insertion section 12, and the protrusion 14 is connected to the pressure transmission block 33 by a metal filament 15. When the pressure in the drainage tube 1 pushes the pressure transmission block 33 to move, the pressure transmission block 33 can also drive the protrusion 14 and the drainage end of the insertion section 12 to move in the target part through the connection of the metal filament 15, so that the part of the insertion section 12 located in the target position is in an open state. When the drainage end of the insertion section 12 is pulled, the insertion section 12 is displaced in the target part, so that the multiple groups of spiral drainage flow grooves 13 opened at the drainage end of the insertion section 12 are displaced due to tension. Or the deformation effect is pulled apart to form a larger flow space. Since the spiral drainage groove 13 expands the flow area in the open state, it helps to improve the passing capacity of drainage liquids such as blood, body fluids, etc., and can enhance the drainage of the drainage fluid accumulated in the drainage section 11, thereby effectively alleviating or solving the blockage problem. In addition, the open state can remove adhesions or obstructions such as blood clots and tissue debris in the drainage section 11, restore the smooth performance of the drainage section 11, and reduce the risk of blockage. When the drainage section 11 is restored to be unobstructed, it can effectively reduce the pressure formed by the drainage fluid in the drainage section 11, causing local swelling or pain in the affected area.

[0059] Reference Fig.13 The first hose 4 and the second hose 5 are both provided with a flushing mechanism 8, which includes a liquid inlet pipe 81 respectively penetrating the first hose 4 and the second hose 5 and a cap 82 detachably provided on the liquid inlet pipe 81. The medical staff opens the cap 82 and injects a flushing liquid (such as saline or anticoagulant) into the liquid inlet pipe 81. The flushing liquid enters the first hose 4 or the second hose 5 to flush the inner wall of the first hose 4 or the second hose 5, and the flushing is consistent with the drainage direction. The flushed liquid passes through the first hose 4 or the second hose 5 into the anti-backflow drainage bag 6 for collection.

[0060] During use, first, the insertion section 12 is guided through the skin and inserted into the target part of the human body that needs drainage, and then the leaking part of the insertion section 12 is fixed to the skin by sutures or tape, and then the drainage section 11 is connected to the connecting tube 21, and one end of the first hose 4 is connected to the liquid outlet end of the docking tube 24, and one end of the second hose 5 is connected to the liquid outlet end of the shunt tube 25, and then the other ends of the first hose 4 and the second hose 5 are connected to the anti-backflow drainage bag 6, and finally the anti-backflow drainage bag 6 is connected to the silicone negative pressure drainage ball 7, and the silicone negative pressure drainage ball 7 is squeezed hard to make it a negative pressure state, and then the silicone negative pressure drainage ball 7 is closed, and the negative pressure of the silicone negative pressure drainage ball 7 is used to make the drainage fluid pass through the drainage tube 1, the distribution mechanism 2, the reversing mechanism 3 and the first hose 4 in sequence, and the drainage fluid enters the silicone negative pressure drainage ball 7 after entering the anti-backflow drainage bag 6;

[0061] When the drainage fluid flows in the first hose 4, once a blockage occurs, the flow of the drainage fluid is blocked, which will reduce the flow rate in the first hose 4. As the drainage fluid in the human body continues to pass through the drainage tube 1, the pressure in the drainage tube 1 will gradually increase. The resistance in the first hose 4 continues to increase, which will cause the pressure in the drainage tube 1 to further accumulate. Until it reaches a critical point, the pressure gradually converges along the trapezoidal guide groove 331, pushing the pressure transmission block 33 to move. While the pressure transmission block 33 moves, the arc bottom plate is driven through the vertical piece 391. 39 moves, and the abutting column 32 drives the blocking block 35 to move toward the fixing ring 36. When the blocking block 35 contacts the adapting groove 37, the blocking block 35 and the adapting groove 37 are completely fitted together by the mutual attraction between the magnetic sheets 38, so as to achieve the sealing of the liquid passage 23, and the arc bottom plate 39 is away from the liquid inlet end of the shunt tube 25. At this time, the first hose 4 is in a closed state, and the second hose 5 is in an open state. The drainage liquid in the drainage tube 1 can enter the second hose 5 through the shunt tube 25 for negative pressure transportation;

[0062] Afterwards, the medical staff opens the cap 82 on the first hose 4 and injects a flushing liquid such as saline or an anticoagulant into the liquid inlet pipe 81. The flushing liquid enters the first hose 4 to flush the inner wall of the first hose 4. The flushed liquid is mixed with the blocked drainage liquid through the first hose 4 and enters the anti-backflow drainage bag 6 for collection. When the blockage in the first hose 4 is cleared, the medical staff removes the connection between the docking tube 24 and the second hose 5, and then pushes the blocking block 35 in the reverse direction to release the magnetic attraction between the magnetic sheets 38. At this time, the elastic action of the elastic member 34 is used to reset the abutment column 32, the pressure transmission block 33, the blocking block 35 and the adapter groove 37. At this time, the first hose 4 is in an open state and the second hose 5 is in a closed state. The medical staff opens the cap 82 on the second hose 5 and injects a flushing liquid into the liquid inlet pipe 81 to flush the inner wall of the second hose 5. When the blockage occurs next time, the principle is the same as above.

[0063] Reference Figure 12-14 , the first hose 4 and the second hose 5 can be detachably provided with a bending mechanism 9, the bending mechanism 9 includes a connecting plate 91 arranged up and down and a fixed wheel 92 and a rotating wheel 96 symmetrically arranged on the connecting plate 91, the fixed wheel 92 is fixed on the connecting plate 91, and the fixed wheel 92 rotates with a swing plate 94 through a central axis 93, the central axis 93 is fixed to one end of the swing plate 94, the central axis 93 is rotatably connected to the fixed wheel 92 through a bearing, and the other end of the swing plate 94 is rotatably connected to the rotating wheel 96 through a rotating shaft 95, and a guide rail 97 for sliding the rotating shaft 95 is provided on the connecting plate 91, the first hose 4 and the second hose 5 are respectively penetrated between the corresponding fixed wheel 92 and the rotating wheel 96, and a limiting block 911 for limiting the first hose 4 and the second hose 5 is also fixed between the connecting plates 91, by making the rotating wheel 96 rotate around the central axis 93, so that the rotating wheel 96 rotates along the direction of the guide rail 97, the first hose 4 and the second hose 5 are The tube 5 is bent, and bending the first hose 4 and the second hose 5 can change the shape of the inner cavity of the first hose 4 and the second hose 5, thereby squeezing or loosening the blockage in the tube, so that the blockage attached to the tube wall is detached, and then the pipeline is restored to be unobstructed, and the rotating wheel 96 can rotate by the rotating shaft 95, so that the bending mechanism 9 can move as a whole on the first hose 4 or the second hose 5, so as to adapt to different blockage positions on the first hose 4 or the second hose 5. The bending mechanism 9 can provide a stable and uniform bending force to avoid sudden excessive or insufficient force caused by the instability of the hand strength of the medical staff, and at the same time reduce the frequency of direct contact between the medical staff and the drainage tube 1, which helps to reduce the risk of infection. The setting of the bending mechanism 9 can also quickly locate the blockage point and implement the operation. Compared with manual operation, the processing efficiency is higher, and the bending mechanism 9 can be detachably arranged on the first hose 4 and the second hose 5, and can be reused to avoid waste.

[0064] The central axis 93 passes through the outside of the connecting plate 91 and is fixed with a silicone handle 98 . The silicone handle 98 is convenient for medical staff to control the rotating wheel 96 to rotate around the central axis 93 .

[0065] During use, first prepare two sets of bending mechanisms 9, and respectively sleeve the two sets of bending mechanisms 9 on the first hose 4 and the second hose 5. Take the first hose 4 as an example, and the use method is as follows: the first hose 4 is passed through between the fixed wheel 92 and the rotating wheel 96. Since the rotating wheel 96 and the swing plate 94 are rotatably connected by the rotating shaft 95, the friction of the first hose 4 can be reduced when passing through. After the passing is completed, if a certain position of the first hose 4 is blocked, the bending mechanism 9 is moved as a whole to the blocked position, and then the medical staff rotates the silicone handle 9 8. Control the central shaft 93 to rotate, so that the central shaft 93 drives the swing plate 94, the rotating shaft 95 and the rotating wheel 96 to rotate. At this time, the rotating wheel 96 rotates around the central shaft 93, and makes the rotating shaft 95 rotate along the direction of the guide rail 97. At this time, the blocked part of the first hose 4 can be bent, and the blockage in the first hose 4 can be squeezed. Finally, the silicone handle 98 is rotated again to control the rotating wheel 96 to reset. At this time, the first hose 4 is reset. After the drainage operation is completed, the bending mechanism 9 can be disassembled and disinfected as a whole and put into use again.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A surgical anti-blocking drainage device, characterized in that: include: A drainage tube (1), the drainage tube (1) being used for being inserted into a target part of a human body that requires drainage; A distribution mechanism (2), the distribution mechanism (2) comprising a connecting pipe (21), a distribution pipe (22), a liquid-passing pipe (23) and a butt joint pipe (24) which are connected in sequence, the connecting pipe (21) and the drainage pipe (1) are connected to each other, the liquid outlet end of the butt joint pipe (24) is connected to a first hose (4), the distribution pipe (22) is provided with a shunt pipe (25), the liquid outlet end of the shunt pipe (25) is connected to a second hose (5), the other ends of the first hose (4) and the second hose (5) are connected to an anti-backflow drainage bag (6), and the anti-backflow drainage bag (6) is connected to a silica gel negative pressure drainage ball (7); A reversing mechanism (3) is arranged in the distribution pipe (22) and the liquid passage pipe (23), and comprises a blocking block (35) movably arranged in the distribution pipe (22), an arc-shaped bottom plate (39), and a fixing ring (36) fixed in the liquid passage pipe (23); a side of the fixing ring (36) close to the blocking block (35) is provided with an adapting groove (37) corresponding to the blocking block (35); when the blocking block (35) is away from the adapting groove (37), the arc-shaped bottom plate (39) is located at the liquid inlet end of the flow distribution pipe (25), and at this time, the first hose (4) is in an open state, and the second hose (5) is in a closed state.

2. The anti-blocking drainage device for surgery according to claim 1, characterized in that: The reversing mechanism (3) further comprises a bracket (31) fixed in the distribution pipe (22), an abutting column (32) penetrating the bracket (31), a pressure transmission block (33) connected to one end of the abutting column (32), and an elastic member (34) provided on the abutting column (32); the blocking block (35) is fixed to the other end of the abutting column (32); and the arc-shaped bottom plate (39) and the pressure transmission block (33) are fixedly connected via a vertical sheet (391); A magnetic sheet (38) is provided on the edge of the blocking block (35) close to the fixing ring (36), and another magnetic sheet (38) is provided in the adapting groove (37). The two magnetic sheets (38) are arranged as positive and negative electrodes. When the first hose (4) is blocked, the pressure in the drainage tube (1) gradually increases, and the pressure acts on the pressure transmission block (33) to control the movement of the blocking block (35) and the arc bottom plate (39). When the blocking block (35) contacts the adapting groove (37), the arc bottom plate (39) moves away from the shunt tube (25). At this time, the first hose (4) is in a closed state, and the second hose (5) is in an open state.

3. The anti-blocking drainage device for surgery according to claim 2, characterized in that: The drainage tube (1) comprises a drainage section (11) connected to the connecting tube (21), an insertion section (12) integrally arranged with the drainage section (11), and a plurality of drainage grooves (13) provided on the insertion section (12), wherein the plurality of drainage grooves (13) are evenly distributed in a spiral shape around the drainage end of the insertion section (12); A convex block (14) is integrally provided in the drainage end of the insertion section (12), and the convex block (14) is connected to the pressure conduction block (33) via a metal filament (15).

4. The anti-blocking drainage device for surgery according to claim 2, characterized in that: The pressure transmission block (33) is provided with a plurality of groups of trapezoidal guide grooves (331) on one side facing the connecting pipe (21), and the plurality of groups of trapezoidal guide grooves (331) are evenly distributed along the conical surface direction of the pressure transmission block (33).

5. The anti-blocking drainage device for surgery according to claim 1, characterized in that: The inner wall of the connecting pipe (21) is arranged in a wave shape.

6. The anti-blocking drainage device for surgery according to claim 2, characterized in that: An opening (311) is provided at the center of the bracket (31), a ball (312) is provided in the opening (311), the abutment column (32) passes through the opening (311), and a sliding groove (321) is provided on the abutment column (32) for sliding cooperation with the ball (312); The support (31) is also symmetrically provided with flow channels (313) for drainage fluid to pass through.

7. The anti-blocking drainage device for surgery according to claim 2, characterized in that: A baffle (392) is symmetrically provided on one side of the arc-shaped bottom plate (39) away from the blocking block (35); the baffle (392) is fixed in the distribution pipe (22); and the arc-shaped bottom plate (39) and the baffle (392) are in contact with each other.

8. The anti-blocking drainage device for surgery according to claim 1, characterized in that: The first hose (4) and the second hose (5) are both provided with a flushing mechanism (8), and the flushing mechanism (8) comprises a liquid inlet pipe (81) respectively penetrating the first hose (4) and the second hose (5), and a cover cap (82) detachably provided on the liquid inlet pipe (81).

9. The anti-blocking drainage device for surgery according to claim 1, characterized in that: The first hose (4) and the second hose (5) are both detachably provided with a bending mechanism (9), the bending mechanism (9) comprising a connecting plate (91) arranged above and below, and a fixed wheel (92) and a rotating wheel (96) symmetrically arranged on the connecting plate (91), the fixed wheel (92) being fixed on the connecting plate (91), the fixed wheel (92) being rotated with a swing plate (94) via a central axis (93), the other end of the swing plate (94) being rotatably connected to the rotating wheel (96) via a rotating shaft (95), and a guide rail (97) for the rotating shaft (95) to slide is provided on the connecting plate (91); The first hose (4) and the second hose (5) are respectively inserted between the corresponding fixed wheel (92) and the rotating wheel (96), and a limiting block (911) for limiting the first hose (4) and the second hose (5) is also fixed between the connecting plates (91).

10. The anti-blocking drainage device for surgery according to claim 9, characterized in that: The central axis (93) passes through the outside of the connecting plate (91) and is fixed with a silicone handle (98).

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