Multi-chamber disinfection docking device for hemodialysis catheters

Abstract

This invention discloses a multi-compartment disinfection and docking device for hemodialysis catheters, comprising a capsule; the capsule is provided with several connecting tubes for docking with a dialysis machine; the capsule contains a first disinfection compartment for disinfecting old heparin caps, a removal compartment for removing old heparin caps, a second disinfection compartment for disinfecting the indwelling catheter interface, and a docking compartment for docking with the connecting tubes; both the first and second disinfection compartments are equipped with sterilizers for disinfection. This invention integrates the nursing work during dialysis treatment from the original multi-step, scattered actions into a continuous operation within the capsule. Simply insert the indwelling catheter into the capsule and proceed sequentially through the first disinfection compartment, removal compartment, second disinfection compartment, and docking compartment. Disinfection, cap removal, re-disinfection, and docking can be completed within the capsule by rubbing it; this simplifies the operation, avoids bacterial infection and contact contamination, and ensures the convenience and safety of hemodialysis nursing work.

Description

Technical Field

[0001] The present invention relates to the technical field of hemodialysis nursing, and particularly to a multi-chamber disinfection docking device for hemodialysis catheters. Background Art

[0002] Patients undergoing hemodialysis need to have a central venous catheter (CVC) indwelling for a long time as a vascular access. Before and after each dialysis treatment, medical staff need to perform a series of operations: removing the old dressing, disinfecting the catheter interface, unscrewing the old heparin cap, disinfecting again, connecting the dialysis pipeline, sealing the catheter after treatment, replacing the new heparin cap, and covering the gauze dressing again.

[0003] Currently, there are many problems in the nursing work during dialysis treatment, such as cumbersome operations and many steps: 5 - 8 steps of operations are required before and after each treatment, which not only takes a long time, but there is also a risk of human error in each step; high infection risk: the catheter interface is exposed to the air many times during disinfection, cap unscrewing, catheter sealing and other links, and is easily contaminated by bacteria. Moreover, a new heparin cap needs to be unscrewed after catheter sealing, increasing one exposure operation; medical staff are exposed to contamination: the removed old heparin cap has blood residue and needs to be manually processed, posing a risk of occupational exposure; lack of an integrated tool: the existing operations rely on multiple scattered consumables (disinfection cotton swabs, heparin caps, syringes, etc.), and there is no integrated device.

[0004] Therefore, the nursing work during dialysis treatment is inconvenient and has the risks of bacterial infection and contact contamination. Summary of the Invention

[0005] In view of the above-mentioned prior art, the present invention aims to provide a multi-chamber disinfection docking device for hemodialysis catheters, and the main technical problem to be solved is how to ensure the convenience and safety of nursing work before and after dialysis.

[0006] To achieve the above object, the technical solution of the embodiment of the present invention is realized as follows: A multi-chamber disinfection docking device for hemodialysis catheters includes a bladder. A plurality of connecting pipes for docking with a dialysis machine are provided on the bladder. A first disinfection chamber for disinfecting the old heparin cap, a disassembly chamber for disassembling the old heparin cap, a second disinfection chamber for disinfecting the indwelling catheter interface, and a docking chamber for docking the connecting pipes are provided in the bladder. Disinfection devices for disinfection are provided in both the first disinfection chamber and the second disinfection chamber.

[0007] Further, a "field" - shaped partition is provided in the bladder. The partition is used to separate the inner cavity of the bladder to form a single first disinfection chamber, two juxtaposed disassembly chambers, two juxtaposed disassembly chambers, and a single docking chamber from front to back. An inlet is opened at the bottom end of the first disinfection chamber, and an annular adhesive is provided on the bottom end of the bladder outside the inlet.

[0008] Furthermore, the partition is provided with through grooves between the first disinfection chamber and the unloading chamber, between the unloading chamber and the second disinfection chamber, and between the second disinfection chamber and the docking chamber, and a sealing film is fixedly connected to the through groove.

[0009] Furthermore, there are two connecting pipes, which are installed through the side wall of the docking chamber. One end of the connecting pipe in the docking chamber is fixedly connected to a connector that is compatible with the indwelling catheter interface. The other end of the connecting pipe is a T-shaped pipe with a plug at the opening. A heat-fusion zone is provided on the pipe body between the T-shaped pipe and the bladder.

[0010] Furthermore, the sterilizer includes a hollow spherical cotton ball and a pouch inside the cotton ball, the pouch containing sterilizing solution.

[0011] Furthermore, it also includes a hot melt clamp, which includes two rotatably connected clamping arms. Pressure rollers are fixedly connected to both ends of the two clamping arms on one side of each other, and heating wires are provided in the pressure rollers.

[0012] Furthermore, a groove is provided on the inner side of the clamping arm between the two pressure rollers, and a support plate is slidably connected to the groove. A rotating shaft and a connecting shaft are provided through the support plate. Both the rotating shaft and the connecting shaft are connected to pulleys by keys, and the same synchronous belt is sleeved on the outside of the two pulleys.

[0013] Furthermore, one end of the connecting shaft is connected to a gear via a key, a rack that meshes with the gear is fixedly connected to the inner wall of the top end of the clamping arm, and a blade is fixedly connected to one end of the rotating shaft.

[0014] Furthermore, a motor is fixedly connected to one side of the inner side of the clamping arm, and a reciprocating screw is fixedly connected to one end of the motor's output shaft. A nut is threaded onto the external side of the reciprocating screw, and a support plate is fixedly connected to the top of the nut.

[0015] The beneficial effects of this invention are as follows: 1. This application integrates the nursing work during dialysis treatment from the original multi-step, scattered actions into a continuous operation within the capsule. Simply insert the indwelling catheter into the capsule and proceed along the first disinfection chamber, the removal chamber, the second disinfection chamber, and the docking chamber in sequence. The entire operation of disinfection, cap removal, re-disinfection, and docking can be completed sequentially within the capsule by rubbing it. This not only significantly reduces the number of operation steps and shortens the operation time, thereby reducing the possibility of human error, but also ensures that the catheter interface is never exposed to the air, thus avoiding bacterial infection and contact contamination, maintaining aseptic connection and operation, and ensuring the convenience and safety of nursing work. 2. By setting up a heat-fusion clip, after hemodialysis treatment, the connecting tube can be heat-fused and sealed at the heat-fusion zone using an external heat-fusion clip, and then cut off. At this time, the half connecting tube on the capsule can be used as a new heparin cap to seal the indwelling catheter without the need for additional capping, avoiding additional exposure and reducing the risk of catheter-related bloodstream infection. The half connecting tube with the three-way stopcock can seal the hemodialysis tubing for disposal. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the capsule structure of a multi-compartment disinfection and docking device for hemodialysis catheters in Embodiment 1 of this application; Figure 2 This is a perspective view of a heat-fusion clamp for a multi-compartment disinfection and docking device for hemodialysis catheters according to Embodiment 2 of this application; Figure 3 This is a side cross-sectional view of a heat-fusion clamp for a multi-compartment disinfection and docking device for hemodialysis catheters in Embodiment 2 of this application; Figure 4 for Figure 3 Enlarged view of part A in the image; Figure 5 This is a cross-sectional view of the support plate of a multi-compartment disinfection docking device for hemodialysis catheters in Embodiment 2 of this application.

[0017] Explanation of icon numbers: 1. Bag body, 101. First disinfection chamber, 1011. Inlet, 102. Unloading chamber, 103. Second disinfection chamber, 104. Docking chamber, 2. Sterilizer, 201. Bag, 202. Cotton ball, 3. Adhesive, 4. Partition, 401. Through groove, 402. Sealing film, 5. Connecting pipe, 501. Joint, 502. Hot melt zone, 503. T-pipe, 504. Hot melt clamp, 6. Clamping arm, 601. Slide groove, 6011. Blade, 7. Pressure roller, 8. Heating wire, 801. Reciprocating screw, 9. Nut, 10. Motor, 11. Rotating shaft, 12. Rack, 13. Support plate, 14. Gear, 15. Connecting shaft, 16. Pulley, 17. Synchronous belt, 18. Detailed Implementation

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0019] Example 1 See attached document Figure 1, this application provides a multi-chamber disinfection docking device for hemodialysis catheters. The whole is an integrated sterile integrated structure and can be made into a disposable product for use. It includes a bladder 1 made of flexible sterile medical polymer material, and the internal components can be extruded by external rubbing to meet the operation requirements of disinfection, disassembly, docking, etc. The bladder 1 and the separator 4 are respectively composed of two parts of bladder skin and sheet body that are mirror-symmetrical up and down through ultrasonic bonding. The two parts of bladder skin and two parts of sheet body in the upper and lower positions can ensure the tightness of the bladder 1 and the separator 4 during use. After the dialysis treatment is over, only need to tear the bladder 1 and the separator 4 apart, so that the two are re-divided into two bladder skins and two sheet bodies, and then the device can be removed from the outside of the indwelling catheter. After that, only need to disinfect the indwelling catheter routinely, and then the dressing can be used to fix it.

[0020] Preferably, several connecting tubes 5 for docking with the dialysis machine are arranged on the bladder 1. The number of connecting tubes 5 is preferably two, corresponding to the arterial end and the venous end of the indwelling catheter respectively, to achieve dual-channel synchronous docking.

[0021] Preferably, the inside of the bladder 1 is separated by a "field" - shaped separator 4 to form multiple independent functional chambers, which are in turn along the direction of the indwelling catheter: the first disinfection chamber 101, the disassembly chamber 102, the second disinfection chamber 103, and the docking chamber 104. Among them, the first disinfection chamber 101 is a single independent chamber for pre-disinfecting the outer surface of the old heparin cap. Since the venous end and the arterial end of the indwelling catheter are both in an unsterilized state at the beginning, they can share the first disinfection chamber 101 and be disinfected separately in it; the disassembly chamber 102 is a double chamber in parallel, matching the double-channel indwelling catheter, and is used to disassemble the old heparin caps at the venous end and the arterial end respectively. Because there may be blood on the old heparin caps, it needs to be processed separately to avoid cross-contamination. After removing the old heparin cap, it will be left in the disassembly chamber 102 to avoid contact contamination. The inner wall of the disassembly chamber 102 is provided with an anti-slip rotation and detachment structure, such as protrusions or ribs, to increase the friction for easy cap removal; the second disinfection chamber 103 is a double chamber in parallel for deep disinfection of the exposed interfaces of the indwelling catheter, which can also avoid cross-infection; the docking chamber 104 is a single independent chamber for completing the sealed docking of the catheter and the dialysis pipeline. After the interfaces of the indwelling catheter have been disinfected, even if they are in the same chamber, cross-contamination will not occur, so they can share the docking chamber 104. Therefore, the internal structure design of this device can be minimized within a reasonable range to facilitate production and control production costs.

[0022] Preferably, both the first disinfection chamber 101 and the second disinfection chamber 103 are equipped with a sterilizer 2. The sterilizer 2 consists of a hollow spherical cotton ball 202 and an inner bag 201. The bag 201 is filled with 2% chlorhexidine gluconate solution, medical iodine, 70% alcohol, hydrogen peroxide or other standard disinfectants that meet clinical disinfection requirements, so as to adapt to the operating procedures of different hospitals or the needs of patients with allergies. The bag 201 is made of a medical film material that is easy to squeeze and break. External rubbing and squeezing can break it and release the disinfectant to soak the cotton ball 202 for wiping to achieve disinfection.

[0023] Preferably, the first disinfection chamber 101 has an inlet 1011 at its bottom end, and the bottom end of the capsule 1 has an annular adhesive 3 on the outside of the inlet 1011. The adhesive 3 is made of medical grade material and has been sterilized, such as hydrocolloid. When in use, the adhesive 3 can be pasted onto the patient's skin surface at the hemodialysis fistula site to fix the position of the capsule 1 and prevent displacement during operation. At the same time, it seals the gap between the inlet 1011 and the skin to maintain the internal sterile environment. The adhesive 3 can also be fixed by medical pressure-sensitive adhesive, silicone base or adjustable strap to adapt to different patients' skin conditions or usage habits.

[0024] Preferably, the partition 4 has through slots 401 between the first disinfection chamber 101 and the unloading chamber 102, between the unloading chamber 102 and the second disinfection chamber 103, and between the second disinfection chamber 103 and the docking chamber 104. An easily tearable sealing film 402 is fixedly connected to each through slot 401. The sealing film 402 can be easily broken under the thrust of the indwelling catheter, allowing communication between the chambers while maintaining independent sealing of each chamber when not in use, thus preventing cross-contamination of the disinfectant. The sealing film 402 can be made of aluminum foil, a polymer composite membrane, medical-grade polyester film (PET), polypropylene film (PP), or other easily puncturable medical-grade materials.

[0025] Preferably, the connecting tube 5 is disposed through the side wall of the docking chamber 104. One end of the connecting tube 5, located inside the docking chamber 104, is fixedly connected to a connector 501 adapted to the indwelling catheter interface. The connector 501 is similar to a heparin cap, enabling a leak-proof connection with the indwelling catheter. The other end of the connecting tube 5 is a three-way tube 503. The three-way tube 503 is equipped with a plug 504 at its port, and a three-way valve is installed inside the three-way tube 503. Preferably, a medical-grade three-way stopcock valve is used. It is kept closed before use to avoid internal contamination. Before heat fusion, the indwelling catheter can be disconnected from the dialysis tubing furnace by opening the three-way valve. Sealing fluid can be drawn into the indwelling catheter and the tubing patency can be tested through the connecting tube 5. A heat-fusion zone 502 is provided on the tube body of the connecting tube 5 between the three-way tube 503 and the capsule 1. The heat-fusion zone 502 is a thin-walled, easily fusible section, which facilitates subsequent heat fusion sealing. The two connecting tubes 5 are color-coded to distinguish between the arterial and venous ends connected to the hemodialysis machine.

[0026] Working principle: This device is aseptically packaged and sealed to ensure that all internal compartments, sterilizer 2, and connecting pipe 5 are in a sterile state; When using it, medical staff tear off the sterile packaging, put the capsule 1 on the outside of the patient's indwelling catheter through the imported 1011, and press the ring adhesive 3 to stick it to the skin surface of the hemodialysis fistula to complete the fixation of the capsule 1. At this time, both the venous end and the arterial end of the indwelling catheter are inside the first disinfection chamber 101. Therefore, by rubbing the outer wall of the corresponding capsule 1 of the first disinfection chamber 101 from the outside, the pressure will cause the capsule 201 of the disinfection device 2 inside to rupture, and the disinfectant will soak the cotton ball 202. The cotton ball 202 can then be used to wipe the old heparin cap, complete the comprehensive disinfection of the outer surface, and avoid bacterial contamination when removing the cap. Then, push the indwelling catheter to puncture the sealing membrane 402 between the first disinfection chamber 101 and the removal chamber 102, so that its venous end and arterial end can enter the two independent removal chambers 102 respectively. Then, rotate and rub the capsule 1 on the outside to rotate the old heparin cap through friction, so that it is separated from the indwelling catheter interface. The old heparin cap after removal is left in the removal chamber 102 to avoid direct contact by medical staff and eliminate the risk of contact contamination. Then push the capsule 1 to break through the sealing membrane 402 between the indwelling catheter detachment chamber 102 and the second disinfection chamber 103, allowing its venous end and arterial end to enter the two independent second disinfection chambers 103 respectively; repeat the rubbing action, and the disinfection device 2 in the chamber releases disinfectant to deeply wipe and disinfect the exposed interface of the indwelling catheter. Since the interface is completely sealed in the chamber and does not come into contact with air, external bacterial contamination can be prevented. Next, continue pushing the capsule 1 so that the indwelling catheter breaks through the sealing membrane 402 between the second disinfection chamber 103 and the docking chamber 104, enters the docking chamber 104, and then aligns the venous end and arterial end of the indwelling catheter with the connectors 501 of the two connecting tubes 5 and tightens them to complete the sealing docking; then remove the plug 504 on the three-way tube 503, connect the three-way tube 503 to the dialysis machine tubing, and hemodialysis treatment can be carried out; Furthermore, during the above process, the connection between the indwelling catheter and the hemodialysis machine can be temporarily closed through a three-way valve to allow for the injection of sealing fluid and to perform a tubing patency test.

[0027] Example 2 See attached document Figure 2-5 This application provides a multi-compartment disinfection and docking device for hemodialysis catheters. Compared with embodiment 1, in order to facilitate the sealing and cutting of the connecting tube 5, it also includes a heat-fusion clamp 6, which is used to achieve rapid heat-fusion sealing and cutting of the connecting tube 5 after hemodialysis treatment, without the need to replace the heparin cap, further simplifying the operation and reducing the risk of infection. Preferably, the heat-melting clamp 6 includes two clamping arms 601 rotatably connected by a rotating shaft, forming an openable clamping structure for easy clamping of the connecting tube 5; both ends of the two clamping arms 601 are fixedly connected to pressure rollers 8 on one side of each other, and the pressure rollers 8 have built-in heating wires 801. The heating wires 801 are connected to an external power source and can be heated to the heat-melting temperature quickly. Therefore, by using the two pressure rollers 8 on both sides, both ends of the heat-melting area 502 on the connecting tube 5 can be heat-melted and sealed. Then, with the help of the blade 7, this area can be cut off, which can achieve the function of sealing the indwelling catheter and hemodialysis tubing.

[0028] Preferably, a groove 6011 is formed on the inner side of the clamping arm 601 between the two pressure rollers 8. A support plate 14 is slidably connected in the groove 6011, and the support plate 14 can slide stably back and forth along the groove 6011. A rotating shaft 12 and a connecting shaft 16 are provided through the support plate 14. Both the rotating shaft 12 and the connecting shaft 16 are externally connected to and fixed pulleys 17 by keys. The two pulleys 17 are fitted with the same synchronous belt 18 to realize the synchronous rotation of the rotating shaft 12 and the connecting shaft 16.

[0029] Preferably, one end of the connecting shaft 16 is connected to the fixed gear 15 via a key, and the inner wall of the top end of the clamping arm 601 is fixedly connected to the rack 13 that meshes with the gear 15. When the gear 15 rolls along the rack 13, it can drive the connecting shaft 16 to rotate. One end of the rotating shaft 12 is fixedly connected to the blade 7, which is a sterile medical cutting blade used to cut the heat-fused connecting tube 5.

[0030] Preferably, a motor 11 is fixedly connected to one side of the clamping arm 601, and a reciprocating screw 9 is fixedly connected to one end of the output shaft of the motor 11. A screw nut 10 is threadedly connected to the outside of the reciprocating screw 9, and a support plate 14 is fixedly connected to the top of the screw nut 10. When the motor 11 drives the reciprocating screw 9 to rotate, the screw nut 10 drives the support plate 14 to move back and forth along the slide groove 6011, realizing the feeding and retraction of the blade 7. At the same time, with the meshing of the gear 15 and the rack 13, the blade 7 can rotate while moving, so as to smoothly cut the connecting pipe 5.

[0031] The clamping arm 601 also includes a control circuit and a power supply for powering the motor 11 and the heating wire 801. The control circuit includes an MCU and a temperature sensor. The MCU can control the start, stop and operation of the motor 11, and can also adjust the heating wire 801 according to the temperature sensor to control the heat melting temperature.

[0032] Working principle: After hemodialysis treatment is completed, the two clamping arms 601 of the heat-melting clamp 6 are opened and clamped at the heat-melting zone 502 of the connecting tube 5 to ensure that the pressure rollers 8 on both sides are tightly fitted to both sides of the heat-melting zone 502. Then, the power supply of the heating wire 801 is turned on, the pressure roller 8 heats up and squeezes the hot melt zone 502, so that the thin-walled section of the connecting tube 5 is heated and fused, and the pipeline is completely sealed. At this time, the end of the connecting tube 5 on the side of the capsule 1 forms a sealing plug, which can be used directly as a new heparin cap. After the heat-melting sealing is completed, the motor 11 is started. The motor 11 drives the reciprocating screw 9 to rotate. The screw nut 10 drives the support plate 14 to move along the slide groove 6011 towards the connecting pipe 5. During the movement of the support plate 14, the gear 15 rolls along the rack 13, and drives the rotating shaft 12 to rotate through the connecting shaft 16, pulley 17, and synchronous belt 18, thereby driving the blade 7 to rotate. The rotating blade 7 is fed with the support plate 14, which neatly cuts off the connecting pipe 5 after heat-melting sealing from the position of the heat-melting zone 502. Since the continuous drive of the reciprocating screw 9 will cause the screw nut 10 to retract automatically after advancing, the support plate 14 can be used to drive the blade 7 back to its original position. After that, turn off the power to the heating wire 801 and the motor 11, open the heat fusion clamp 6 and remove it. At this time, half of the connecting tube 5 with the sealing plug is left on the indwelling catheter, which replaces the traditional heparin cap to achieve permanent sealing. No additional capping is required, reducing the exposure of the interface. The half of the connecting tube 5 with the three-way tube 503 is connected to the dialysis tubing and can be disposed of as medical waste in a sealed state without the risk of blood exposure.

[0033] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A multi-chamber disinfection docking device for a hemodialysis catheter, including a bladder (1), characterized in that: A plurality of connecting pipes (5) for docking with a dialysis machine are provided on the bladder (1); A first disinfection chamber (101) for disinfecting an old heparin cap, a disassembly chamber (102) for disassembling the old heparin cap, a second disinfection chamber (103) for disinfecting an indwelling catheter interface, and a docking chamber (104) for docking the connecting pipe (5) are provided in the bladder (1); Disinfection devices (2) for disinfection are provided in both the first disinfection chamber (101) and the second disinfection chamber (103).

2. The multi-compartment disinfection and docking device for hemodialysis catheters according to claim 1, characterized in that, A "field" - shaped partition (4) is provided in the bladder (1), and the partition (4) is used to separate the inner cavity of the bladder (1) to form a single first disinfection chamber (101), two juxtaposed disassembly chambers (102), two juxtaposed disassembly chambers (102), and a single docking chamber (104) from front to back. An inlet (1011) is opened at the bottom end of the first disinfection chamber (101), and an annular adhesive (3) is provided on the bottom end of the bladder (1) outside the inlet (1011).

3. A multi-compartment disinfection and docking device for hemodialysis catheters according to claim 2, characterized in that, Through grooves (401) are opened at the positions where the partition (4) is between the first disinfection chamber (101) and the disassembly chamber (102), between the disassembly chamber (102) and the second disinfection chamber (103), and between the second disinfection chamber (103) and the docking chamber (104). A sealing film (402) is fixedly connected at the through groove (401).

4. A multi-compartment disinfection and docking device for hemodialysis catheters according to claim 1, characterized in that, The number of the connecting pipes (5) is two, and the two connecting pipes (5) are penetrated and arranged on the side wall of the docking chamber (104). One end of the connecting pipe (5) in the docking chamber (104) is fixedly connected with a joint (501) adapted to the indwelling catheter interface. The other end of the connecting pipe (5) is a three-way pipe (503), a plug (504) is provided at the pipe orifice of the three-way pipe (503), and a heat melting area (502) is provided on the pipe body of the connecting pipe (5) between the three-way pipe (503) and the bladder (1).

5. A multi-compartment disinfection and docking device for hemodialysis catheters according to claim 1, characterized in that, The disinfection device (2) includes a cotton ball (202) in the shape of a hollow sphere and a saccule (201) arranged in the cotton ball (202), and a disinfectant is contained in the saccule (201).

6. A multi-compartment disinfection and docking device for hemodialysis catheters according to claim 1, characterized in that, It further includes a heat melting clamp (6), and the heat melting clamp (6) includes two rotatably connected clamp arms (601). Pressure rollers (8) are fixedly connected at both ends of the side where the two clamp arms (601) are close to each other, and an electric heating wire (801) is provided in the pressure roller (8).

7. A multi-compartment disinfection and docking device for hemodialysis catheters according to claim 6, characterized in that, A chute (6011) is opened at the inner side of the clamp arm (601) between the two pressure rollers (8). A support plate (14) is slidably connected at the chute (6011). A rotating shaft (12) and a connecting shaft (16) are penetrated through the support plate (14). Belt pulleys (17) are connected to the outside of the rotating shaft (12) and the connecting shaft (16) by key connections, and the outside of the two belt pulleys (17) is sleeved with the same synchronous belt (18).

8. A multi-compartment disinfection and docking device for hemodialysis catheters according to claim 7, characterized in that, One end of the connecting shaft (16) is connected to a gear (15) via a key, and a rack (13) that meshes with the gear (15) is fixedly connected to the inner wall of the top end of the clamping arm (601), and a blade (7) is fixedly connected to one end of the rotating shaft (12).

9. A multi-compartment disinfection and docking device for hemodialysis catheters according to claim 8, characterized in that, A motor (11) is fixedly connected to one side of the inner side of the clamping arm (601). A reciprocating screw (9) is fixedly connected to one end of the output shaft of the motor (11). A nut (10) is threadedly connected to the outside of the reciprocating screw (9). The support plate (14) is fixedly connected to the top of the nut (10).

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