A continuous blood purification device

Abstract

The invention discloses a continuous blood purification device, which belongs to the technical field of medical equipment and comprises a blood purification component. The blood purification component comprises a perfusion device, wherein both upper and lower ends of the perfusion device are fixedly connected with hard plug interfaces, a flexible infusion tube is plugged into the hard plug interface on the lower side, a sealing monitoring component is fixedly connected to the flexible infusion tube, two clamping torque guiding components are installed on the left and right side walls of the sealing monitoring component, and an audible and visual reminder component is connected to the sealing monitoring component. When the flexible infusion tube is separated from the hard plug interface, the device can automatically seal the flexible infusion tube by using the clamping torque guiding component, and at the same time cooperate with the clamping sealing component to open the connecting catheter, so that blood can temporarily flow into the connecting catheter, which can not only avoid blood contamination, but also effectively store blood, facilitate subsequent blood transfusion, and reduce the negative impact on the patient's health.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to a continuous blood purification device. Background Art

[0002] Continuous blood purification equipment is a blood purification technology used to treat critically ill patients, especially for patients with renal failure. This equipment can help maintain electrolyte balance and acid-base homeostasis in the body by filtering and removing waste and excess fluid from the blood in a continuous manner. The working principle usually includes hemodialysis, hemofiltration or hemoulfiltration. The equipment introduces the patient's blood through a special filter, removes toxins and excess water, and then returns the purified blood to the body. Compared with traditional hemodialysis, CRRT is more gentle and suitable for critically ill patients who cannot tolerate rapid fluid exchange, such as sepsis, heart failure or patients after major surgery. The advantage of this device is that it can provide continuous treatment within 24 hours, thereby achieving 72 hours or 48 hours of continuous operation. Compared with intermittent dialysis, it reduces the metabolic burden of patients and effectively reduces the risk of related complications.

[0003] A Chinese patent discloses a blood perfusion device (authorization announcement number 201910727741.2), which includes a cylinder filled with an adsorption resin, two blood nozzles, two filters and two cover bodies, the two blood nozzles are sealed and connected at both ends of the cylinder by a threaded connection, and filters are respectively provided between the two end faces of the cylinder and the two blood nozzles; the two cover bodies are respectively sealed and connected at the channel ports included in the two blood nozzles by a threaded connection; the two cover bodies are provided with locking components for locking and preventing the corresponding cover bodies from falling off.

[0004] In the above patent, although it can achieve a sealing effect to prevent leakage of the perfusion device during the clinical priming process, if an accident occurs and the tube is separated from the perfusion device, the blood transmitted by the tube will be directly transmitted to the outside world. Especially under long-term continuous operation, the probability of such an accident will be greatly increased, which will not only endanger the patient's health due to anemia, but also lead to blood waste. After the tube falls to the ground, it will cause contamination of the tube port, making the tube unable to be used again, increasing the inconvenience of secondary perfusion. For this reason, a continuous blood purification device is proposed. Summary of the invention

[0005] The object of the present invention is to provide a continuous blood purification device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A continuous blood purification device, comprising a blood purification component, the blood purification component comprising a perfusion device, the upper and lower ends of the perfusion device are fixedly connected with hard plug interfaces, a flexible infusion tube is plugged into the hard plug interface on the lower side, a sealing monitoring component is fixedly connected to the flexible infusion tube, two clamping torque guide components are installed on the left and right side walls of the sealing monitoring component, an audible and visual reminder component is connected to the sealing monitoring component, and a blood storage component is connected to the flexible infusion tube;

[0008] The clamping torque guide assembly includes a torque fixing cylinder connected to the monitoring cylinder, a rotating rod is inserted on the torque fixing cylinder, a winding fixing disk located inside the torque fixing cylinder is fixedly connected to the rotating rod, a tension guide rope is wound around the winding fixing disk, a rotating sleeve rotatably connected to the torque fixing cylinder is fixedly connected to the rotating rod, both ends of the rotating rod are fixedly connected to the same clamping plate, and a rubber clamping cylinder is fixedly connected to the upper end of the clamping plate.

[0009] As a further solution of the present invention, the clamping torque guide assembly also includes a movable rubber plug slidably connected to the inside of the torque fixing cylinder, and the movable rubber plug is fixedly connected to the tension guide rope, a tension spring is fixedly connected between the movable rubber plug and the torque fixing cylinder, and a through hole is drilled on the side wall of the torque fixing cylinder.

[0010] As a further solution of the present invention, the sealing monitoring assembly includes a monitoring tube fixedly connected to the flexible infusion tube, and two sealing rings in contact with the hard plug interface are fixedly connected to the inner wall of the monitoring tube.

[0011] As a further solution of the present invention, the monitoring tube is connected to a sealed monitoring tube, a piston is slidably connected inside the sealed monitoring tube, a spring plate is fixedly connected inside the sealed monitoring tube, and a compression spring is fixedly connected between the piston and the spring plate.

[0012] As a further solution of the present invention, a switch button is fixedly connected to the inner wall of one end of the sealed monitoring tube, an end of the sealed monitoring tube away from the monitoring tube is fixedly connected to the sound and light alarm, and the switch button is electrically connected to the sound and light alarm.

[0013] As a further solution of the present invention, a plug rod is inserted into the sealing monitoring tube, and a connecting rope is fixedly connected between the upper end of the plug rod and the sealing monitoring tube.

[0014] As a further solution of the present invention, the blood storage assembly includes a blood storage bag. A connecting conduit is connected between the blood storage bag and the flexible infusion tube, and a clamping and sealing assembly is installed on the connecting conduit.

[0015] As a further solution of the present invention, the blood storage assembly further comprises a blood discharge port connected to the side wall of the blood storage bag, and an anti-fouling sleeve is provided on the blood discharge port.

[0016] As a further solution of the present invention, the clamping and closing assembly includes two magnetic clamping blocks that are magnetically attracted to each other, and the two magnetic clamping blocks are respectively located on both sides of the connecting conduit, and a traction rope is fixedly connected between the clamping plate and the magnetic clamping blocks.

[0017] As a further solution of the present invention, a plurality of limiting rods are fixedly connected to the side wall of one magnetic clamping block, and the plurality of limiting rods pass through another magnetic clamping block and are fixedly connected to the same limiting plate.

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

[0019] 1. When the present invention is used, when the flexible infusion tube is separated from the hard plug interface, the clamping torque guide component can be used to automatically close the flexible infusion tube, and at the same time, the clamping closure component is used to open the connecting catheter, so that blood can temporarily flow into the connecting catheter, which can not only avoid blood contamination, but also effectively store blood, facilitate subsequent blood transfusion, and reduce the negative impact on the patient's health.

[0020] 2. When the present invention is used, it can play a real-time detection role on the hard plug interface and the flexible infusion tube through the sound and light reminder component, and can effectively play an effective reminder role when the hard plug interface and the flexible infusion tube leak.

[0021] 3. When the present invention is used, the pipeline sealing structure in the device is implemented by clamping, thereby effectively avoiding contamination of blood. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional stereogram of a continuous blood purification device;

[0023] Figure 2 It is a structural schematic diagram of a blood purification component in a continuous blood purification device;

[0024] Figure 3 It is a structural schematic diagram of a sealing monitoring component and a clamping torque guiding component in a continuous blood purification device;

[0025] Figure 4 It is a structural schematic diagram of a clamping torque guide component in a continuous blood purification device;

[0026] Figure 5 It is a structural schematic diagram of an acousto-optic reminder component in a continuous blood purification device;

[0027] Figure 6 It is a structural schematic diagram of a blood storage component in a continuous blood purification device;

[0028] Figure 7 for Figure 6The enlarged view of point A in the middle;

[0029] Figure 8 The figure is a state diagram of a flexible infusion tube in a continuous blood purification device after being clamped;

[0030] Fig. 9 This is a schematic diagram of the structure of a blood filter at position B in a continuous blood purification device.

[0031] In the figure:

[0032] 1. Blood purification component; 101. Perfusion device; 102. Hard plug interface; 103. Flexible infusion tube;

[0033] 2. Sealing monitoring assembly; 201. Monitoring tube; 202. Sealing ring;

[0034] 3. Clamping torque guide assembly; 301. Torque fixing cylinder; 302. Moving rubber plug; 303. Tension spring; 304. Through hole; 305. Rotating rod; 306. Winding fixing disk; 307. Tension guide rope; 308. Rotating sleeve; 309. Clamping plate; 310. Rubber clamping cylinder;

[0035] 4. Sound and light reminder assembly; 401. Sealed monitoring cylinder; 402. Piston; 403. Spring plate; 404. Compression spring; 405. Sound and light alarm; 406. Switch button; 407. Insertion rod; 408. Connecting rope;

[0036] 5. Blood storage assembly; 501. Blood storage bag; 502. Connecting catheter; 503. Blood discharge port; 504. Anti-fouling sleeve;

[0037] 6. Clamping and closing assembly; 601. Magnetic clamp block; 602. Pull rope; 603. Limit rod; 604. Limit plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figures 1 to 5In an embodiment of the present invention, a continuous blood purification device includes a blood purification component 1, which includes a perfusion device 101 for adsorbing and cleaning blood. The upper and lower ends of the perfusion device 101 are fixedly connected with hard plug ports 102, and a flexible infusion tube 103 is plugged into the hard plug port 102 at the lower side. When installing the flexible infusion tube 103, the flexible infusion tube 103 needs to be inserted into the hard plug port 102 to achieve communication between the perfusion device 101 and the flexible infusion tube 103. In the embodiment, the blood in the flexible infusion tube 103 is pushed by the blood pump to enter the perfusion device 101 through the hard plug port 102. The flexible infusion tube 103 is fixedly connected with a sealing monitoring component 2 for monitoring the sealing performance. Two clamping torque guide components 3 for clamping and closing the flexible infusion tube 103 are installed on the left and right side walls of the sealing monitoring component 2. The sealing monitoring component 2 is connected with an audio-visual reminder component 4 for reminder, and the flexible infusion tube 103 is connected with a blood storage component 5 for storing blood.

[0040] The clamping torque guide assembly 3 includes a torque fixing cylinder 301 connected to and fixed to the monitoring cylinder 201, a rotating rod 305 is inserted into the torque fixing cylinder 301, and a winding fixing disk 306 located inside the torque fixing cylinder 301 is fixedly connected to the middle of the rotating rod 305, and a tension guide rope 307 is wound around the winding fixing disk 306. When the tension guide rope 307 is subjected to tension, the rotating rod 305 can be driven to rotate. When the rotating rod 305 rotates to wind up the tension guide rope 307, the tension can also be The guide rope 307 pulls the movable rubber plug 302 to move, and the torsion fixing cylinder 301 is fixedly connected with a rotating sleeve 308 that is rotatably connected to the rotating rod 305 through a mechanical seal. Both ends of the rotating rod 305 are fixedly connected to the upper end of the clamping plate 309. The upper end of the clamping plate 309 is set with two vertical rods to prevent the clamping plate 309 from being blocked by the monitoring cylinder 201 when it is tilted, thereby failing to effectively clamp the flexible infusion tube 103. The upper end of the clamping plate 309 is fixedly connected with a rubber clamp seal by welding. The cylinder 310 is wrapped with rubber on the outside of the rubber clamping cylinder 310. On the one hand, the friction between the rubber clamping cylinder 310 and the surface of the flexible infusion tube 103 can be increased, making it less likely to fall off. On the other hand, when the flexible infusion tube 103 is clamped, the sealing effect of the flexible infusion tube 103 can be improved. The clamping torque guide assembly 3 also includes a movable rubber plug 302 slidably connected to the inside of the torque fixing cylinder 301, and the movable rubber plug 302 is fixedly connected to the tension guide rope 307. The movable rubber plug 302 is close to the inner surface of the torque fixing cylinder 301. A tension spring 303 is fixedly connected between a side wall close to the tension guide rope 307 and the inner wall of the torsion fixing cylinder 301. A through hole 304 is drilled at the center of the side wall of the torsion fixing cylinder 301. The movable rubber plug 302 moves under the tension of the tension spring 303. The movable rubber plug 302 pulls the tension guide rope 307 to rotate the rotating rod 305. The rotation force is used to make the upper ends of the two clamping plates 309 tilt relative to each other, and the rubber clamping cylinder 310 is used to clamp and seal the flexible infusion tube 103.

[0041] The sealing monitoring assembly 2 includes a monitoring tube 201 fixedly connected to the flexible infusion tube 103, and the inner wall of the monitoring tube 201 is fixedly connected to two sealing rings 202 in contact with the side walls of the hard plug port 102. The sealing ring 202 is used to improve the sealing performance, so that the gap between the hard plug port 102 and the flexible infusion tube 103 becomes a closed space. The monitoring tube 201 is connected and fixedly connected to a sealing monitoring tube 401 by welding. A piston 402 is slidably connected inside the sealing monitoring tube 401. A spring plate 403 is fixedly connected to the inner wall of the sealing monitoring tube 401, and a compression spring 404 is fixedly connected between the piston 402 and the side wall opposite to the spring plate 403. When not in use, the piston 402 will be pushed by the compression spring 404 to push the plug rod 407. At this time, the piston 402 will not press the switch button 406, and the plug rod 407 cannot be opened. The inner wall of one end of the sealed monitoring tube 401 is fixedly connected with the switch button 406, and the end of the sealed monitoring tube 401 away from the monitoring tube 201 is fixedly connected with the sound and light alarm 405, and the switch button 406 is electrically connected to the sound and light alarm 405. When the switch button 406 is pressed, the switch of the sound and light alarm 405 will be turned on. The connection methods of the power supply and wires of the switch button 406 are all existing technologies and will not be repeated here. The sealed monitoring tube 401 is plugged with a The piston 402 is limited by an insertion rod 407, and a connecting rope 408 is fixedly connected between the upper end of the insertion rod 407 and the sealing monitoring tube 401. The staff first needs to pinch the two clamping plates 309 to separate the two rubber clamping cylinders 310. At the same time, the clamping plate 309 pulls the movable rubber plug 302 to move through the rotating rod 305 and the tension guide rope 307, and then the flexible infusion tube 103 is inserted into the hard plug port 102. At this time, the monitoring tube 201 is also sleeved on the hard plug port 102. Then the staff releases the clamping plate 309, and the rubber clamping cylinder 310 can clamp the hard plug port 102. At this time, the movable rubber plug 302 is pulled by the tension spring The piston 402 is reset under the pulling force of 303, so that the inside of the monitoring tube 201 is in a negative pressure state. This negative pressure state will cause the piston 402 to move toward the inside of the monitoring tube 201, and the compression spring 404 will also be in a compressed state. After executing this step, the staff can pull out the plug rod 407. When leakage occurs between the flexible infusion tube 103 and the hard plug port 102, blood will overflow from the gap. At this time, the negative pressure inside the monitoring tube 201 will gradually disappear, and the piston 402 will also be gradually pushed and moved under the action of the compression spring 404 until the piston 402 presses the switch button 406 to turn on the switch of the sound and light alarm 405, which serves as a reminder to medical staff.

[0042] Example 2: Please refer to Figures 6 to 8Based on Example 1, the blood storage component 5 includes a blood storage bag 501, and a connecting conduit 502 is connected and fixedly connected between the blood storage bag 501 and the flexible infusion tube 103. A clamping and sealing component 6 for clamping and sealing the flexible infusion tube 103 is installed on the connecting conduit 502. The blood storage component 5 also includes a blood discharge port 503 connected and fixed on the side wall of the blood storage bag 501. The blood discharge port 503 is provided with an anti-fouling sleeve 504. The anti-fouling sleeve 504 can prevent the blood discharge port 503 from being contaminated by bacteria after the blood storage bag 501 falls to the ground. The clamping and sealing component 6 includes two magnetic clamping blocks 601 that are magnetically attracted to each other, and the two magnetic clamping blocks 601 are respectively located on both sides of the connecting conduit 502. A traction rope 602 is fixedly connected between the clamping plate 309 and the magnetic clamping block 601, and a plurality of limit rods 603 are fixedly connected to the side wall of one of the magnetic clamping blocks 601, and the plurality of limit rods 603 pass through the other magnetic clamping block 601 and are fixed It is connected to the same limiting plate 604, and the traction rope 602 passes through the limiting plate 604. When in use, the rubber clamping cylinder 310 will clamp the hard plug port 102. Since the diameter of the hard plug port 102 is sufficient to make the clamping plate 309 in an open state, the two magnetic clamps 601 will clamp and seal the connecting conduit 502 under the action of magnetic force, and the blood inside the flexible infusion tube 103 cannot enter the blood storage bag 501. When it is not in use or the flexible infusion tube 103 is separated from the hard plug port 102, the rubber clamping cylinder 310 will clamp the flexible infusion tube 103. At this time, the two magnetic clamps 601 no longer clamp the connecting conduit 502 under the pulling force of the traction rope 602. At this time, the blood storage bag 501 is connected with the flexible infusion tube 103. At this time, if there is blood in the flexible infusion tube 103, the blood will enter the blood storage bag 501 through the connecting conduit 502 to store the blood.

[0043] Embodiment 3: The perfusion device 101 of the present invention can also be replaced with a blood filter in actual use. The blood filter is as follows Fig. 9 Marked at B in the middle, a hemofilter is a medical device used for hemodialysis and blood purification. It removes waste and excess water from the blood by physical or chemical methods and is often used to treat diseases such as renal failure.

[0044] The biggest difference between a hemofilter and a perfusion device is that a hemofilter removes toxins and excess fluid from the blood primarily through filtration, while a perfusion device is typically used to provide medications or nutrients while removing or replacing certain components of the blood circulation system, typically for heart or liver-related treatments.

[0045] The blood filter and the perfusion device are similar in that they are both devices for blood treatment, aiming to improve the patient's physiological state. Both involve the circulation of blood and external devices to remove harmful substances or regulate blood components, thereby supporting or replacing certain functions of the body, and are often used to treat serious diseases or conditions. Since both the blood filter and the perfusion device include a tank structure, the blood filter also has the same structure and beneficial effects as the perfusion device 101. The appearance and structure of the blood filter are as follows: Fig. 9 As shown, it is more suitable for critical care areas and increases its scope of use.

[0046] The working principle of the present invention is:

[0047] During use, the staff first pinches the two clamping plates 309 to separate the rubber clamping cylinders 310 at their upper ends, and at the same time, the clamping plates 309 reel in the tension guide rope 307 through the rotating rod 305, so that the tension guide rope 307 pulls the movable rubber plug 302 to move, then the staff inserts the flexible infusion tube 103 into the hard plug port 102, at which time the monitoring tube 201 is also sleeved on the hard plug port 102, and the sealing ring 202 can make the gap between the hard plug port 102 and the flexible infusion tube 103 form a closed space, then the staff releases the clamping plates 309, at which time the rubber clamping cylinder 310 can clamp the hard plug port 102, in this process, The movable rubber stopper 302 is reset under the tension of the tension spring 303, so that the interior of the monitoring tube 201 is in a negative pressure state. This negative pressure condition will cause the piston 402 to move toward the interior of the monitoring tube 201, and the compression spring 404 will also be in a compressed state. Finally, the staff can pull out the plug rod 407 to monitor the sealing inside the monitoring tube 201. If leakage occurs between the flexible infusion tube 103 and the hard plug port 102, blood will overflow from the gap. At this time, the negative pressure inside the monitoring tube 201 will gradually disappear, and the piston 402 will also be pushed under the action of the compression spring 404 until the piston 402 presses the switch button 406 to turn on the switch of the sound and light alarm 405, thereby alerting medical staff.

[0048] When the flexible infusion tube 103 is accidentally pulled and separated from the hard plug port 102, the monitoring tube 201 is no longer in a closed state. At this time, the piston 402 can also press the switch button 406 under the thrust of the compression spring 404 to turn on the switch of the sound and light alarm 405, prompting medical personnel to come for treatment. At the same time, the moving rubber plug 302 is pulled by the tension of the tension spring 303, so that the rotating rod 305 drives the clamping plate 309 to clamp and seal the flexible infusion tube 103 to prevent blood from spraying out of the flexible infusion tube 103. At the same time, the lower ends of the two clamping plates 309 are opened, so that the two magnetic clamps 601 are separated under the tension of the traction rope 602, and then the connecting catheter 502 is no longer clamped. At this time, the blood storage bag 501 is connected with the flexible infusion tube 103, so that blood enters the blood storage bag 501 through the connecting catheter 502 to store the blood.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A continuous blood purification device, comprising a blood purification component (1), characterized in that: The blood purification component (1) comprises a perfusion device (101), the upper and lower ends of the perfusion device (101) are fixedly connected to hard plug ports (102), the lower hard plug port (102) is plugged with a flexible infusion tube (103), the flexible infusion tube (103) is fixedly connected to a sealing monitoring component (2), two clamping torque guide components (3) are installed on the left and right side walls of the sealing monitoring component (2), the sealing monitoring component (2) is connected to an audible and visual reminder component (4), and the flexible infusion tube (103) is connected to a blood storage component (5); The clamping torque guide assembly (3) comprises a torque fixing cylinder (301) connected to the monitoring cylinder (201), a rotating rod (305) being inserted into the torque fixing cylinder (301), a winding fixing disk (306) located inside the torque fixing cylinder (301) being fixedly connected to the rotating rod (305), a tension guide rope (307) being wound around the winding fixing disk (306), a rotating sleeve (308) rotatably connected to the torque fixing cylinder (301) being fixedly connected to the rotating rod (305), two ends of the rotating rod (305) being fixedly connected to the same clamping plate (309), and a rubber clamping cylinder (310) being fixedly connected to the upper end of the clamping plate (309).

2. A continuous blood purification device according to claim 1, characterized in that: The clamping torque guide assembly (3) further comprises a movable rubber plug (302) slidably connected to the interior of the torque fixing cylinder (301), and the movable rubber plug (302) is fixedly connected to the tension guide rope (307), a tension spring (303) is fixedly connected between the movable rubber plug (302) and the torque fixing cylinder (301), and a through hole (304) is drilled on the side wall of the torque fixing cylinder (301).

3. A continuous blood purification device according to claim 1, characterized in that: The sealing monitoring assembly (2) comprises a monitoring tube (201) fixedly connected to the flexible infusion tube (103), and two sealing rings (202) in contact with the hard plug interface (102) are fixedly connected to the inner side wall of the monitoring tube (201).

4. A continuous blood purification device according to claim 3, characterized in that: The monitoring cylinder (201) is connected to a sealed monitoring cylinder (401), a piston (402) is slidably connected inside the sealed monitoring cylinder (401), a spring plate (403) is fixedly connected inside the sealed monitoring cylinder (401), and a compression spring (404) is fixedly connected between the piston (402) and the spring plate (403).

5. A continuous blood purification device according to claim 4, characterized in that: A switch button (406) is fixedly connected to the inner wall of one end of the sealed monitoring tube (401), an end of the sealed monitoring tube (401) away from the monitoring tube (201) is fixedly connected to an audible and visual alarm (405), and the switch button (406) is electrically connected to the audible and visual alarm (405).

6. A continuous blood purification device according to claim 5, characterized in that: The sealing monitoring tube (401) is plugged with an insertion rod (407), and a connecting rope (408) is fixedly connected between the upper end of the insertion rod (407) and the sealing monitoring tube (401).

7. A continuous blood purification device according to claim 1, characterized in that: The blood storage assembly (5) comprises a blood storage bag (501), a connecting conduit (502) is connected between the blood storage bag (501) and the flexible infusion tube (103), and a clamping and sealing assembly (6) is installed on the connecting conduit (502).

8. A continuous blood purification device according to claim 7, characterized in that: The blood storage assembly (5) further comprises a blood discharge port (503) connected to the side wall of the blood storage bag (501), and an anti-fouling sleeve (504) is provided on the blood discharge port (503).

9. A continuous blood purification device according to claim 8, characterized in that: The clamping and closing assembly (6) comprises two magnetic clamping blocks (601) that are magnetically attracted to each other, and the two magnetic clamping blocks (601) are respectively located on both sides of the connecting conduit (502), and a traction rope (602) is fixedly connected between the clamping plate (309) and the magnetic clamping blocks (601).

10. A continuous blood purification device according to claim 9, characterized in that: A plurality of limiting rods (603) are fixedly connected to the side wall of one of the magnetic clamping blocks (601), and the plurality of limiting rods (603) pass through another magnetic clamping block (601) and are fixedly connected to the same limiting plate (604).

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