A blood purification tubing structure

Abstract

The application discloses a pipeline structure for blood purification and relates to the technical field of pipeline devices. The pipeline structure is provided with an adjusting mechanism. The needle wing of a puncture needle can be fixed by rotating a rotating plate, so that the stability of the puncture needle is maintained. Meanwhile, the freedom degree of the whole pipeline structure is greatly increased by arranging a sliding block, a sliding column, a sliding rail and a universal joint arranged on the sliding column, so that the puncture needle can be better moved and adjusted. The stability of the clamping of the needle wing by a clamping plate is ensured by arranging a ratchet and pawl mechanism, so that the needle wing is prevented from falling off. Corresponding locking screws are arranged on each movable module, so that a user can conveniently operate with one hand, the stability of the puncture needle is maintained during use, the angle adjustment of the puncture needle and the subsequent angle maintenance are facilitated, the phenomenon that a patient feels pain and discomfort during puncture is greatly reduced, the patient can complete the whole dialysis process, the patient does not need to stop the dialysis process halfway due to pain, and the overall feeling of the patient during the dialysis process is improved.

Description

Technical Field

[0001] This invention relates to the field of pipeline device technology, specifically a pipeline structure for blood purification. Background Technology

[0002] Blood purification, also known as dialysis in daily life, involves using a blood purification device to draw blood out of the body to remove certain pathogenic substances, thereby purifying the blood and treating diseases. Currently, there are two common methods for securing blood purification tubing in clinical practice: one is using hemostats, and the other is simply securing it with adhesive tape. Hemostats can generally only secure tubing extending beyond the patient's forearm, and they are relatively heavy, posing a risk of falling and rupturing the tubing. In contrast, tubing is secured to the patient's forearm with adhesive tape to ensure stability between the puncture needle and the tubing. However, this usually requires applying a large amount of tape to the patient's forearm, which is cumbersome, and the various securing techniques require a certain level of skill. Hemodialysis patients undergo an average of three dialysis sessions per week, requiring two punctures each time, resulting in at least 312 punctures per year. (Partial hemodialysis...) During dialysis, patients often experience pain at the needle insertion site or in their arm. Current solutions rely on adjusting the needle's direction. However, due to frequent punctures, multiple strips of adhesive tape are used to secure the needle and fix the tubing to the skin to prevent slippage. This tape compresses the tubing beyond the needle wing, causing the portion before the wing to lift up, much like a seesaw. The lifted end is the needle tip, which, when pressed against the blood vessel wall, causes pain. Therefore, an invention that can solve this problem is needed. Summary of the Invention

[0003] The purpose of this invention is to provide a tubing structure for blood purification to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: including a first slider that is slidably disposed on both sides of a base, the first slider being provided with a screw, the screw being helically driven with the first slider, and the screw being provided with an adjustment mechanism.

[0005] The adjusting mechanism includes a second slide rail on the screw, one end of which is rotatably connected to one of the screws. A second slider slides on the second slide rail, and a first locking screw is mounted on the second slider. The first locking screw is helically driven with the second slider. A fixing block is fixed to one side of the second slider, and a lifting column slides on the fixing block. A limiting plate is fixed to one side of the lifting column on the fixing block, and the limiting plate is in contact with the lifting column. A fixing plate is fixed to the end of the fixing block away from the limiting plate, and a second locking screw is mounted on the fixing plate. The second locking screw is screwed into the fixed plate. A ball sleeve is fixed below the lifting column. A ball is installed inside the ball sleeve. The ball is connected to the ball sleeve by a universal joint. A third locking screw is installed on the ball sleeve. The third locking screw is screwed into the ball sleeve. A bonding plate is fixed below the ball. Clamping plates are rotatably installed at both ends of the bonding plate. The clamping plates are fixedly connected to the ratchet. The ratchet is rotatably connected to the bonding plate. A pawl is rotatably installed on the bonding plate. A torsion spring is fixed between the pawl and the bonding plate. The pawl and the ratchet cooperate with each other.

[0006] Preferably, the other end of the second slide rail is engaged with another screw, and the other end of the second slide rail and the other screw can be locked by a pin. The other end of the pin is fixedly connected to a connecting rope, and the other end of the connecting rope is fixedly connected to the screw.

[0007] Preferably, a first pulley is rotatably mounted below the first slider, and the screw is helically driven by the first pulley. A connecting block is fixedly mounted on one side of the first slider, and a second pulley is rotatably mounted on the connecting block. The first and second pulleys in the same group are wound with the same transmission belt, and the second pulley and the first pulley are synchronously driven by the transmission belt. A connecting block is also fixedly mounted on the connecting block, and the motor shaft of the connecting block is fixedly connected to the second pulley.

[0008] Preferably, the first slider is slidably disposed in the first slide rail corresponding to it. The first slide rail is disposed on both sides of the base. An airbag is fixedly disposed in the base. One end of the airbag is fixedly connected to the air supply pipe, and the other end of the air supply pipe is fixedly connected to the corresponding air pump.

[0009] Preferably, a connecting plate is fixedly provided at one end of the base, a rotating plate is rotatably provided on the connecting plate, a pipeline is slidably provided inside the rotating plate, a connecting end is provided at one end of the pipeline, a seal is provided on the connecting end, the seal can be removed from the connecting end, the seal is used to close the connecting end, and the other end of the pipeline is fixedly connected to the corresponding dialysis equipment.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The present invention is equipped with an adjustment mechanism, which can fix the needle wings of the puncture needle by rotating the rotating plate, thereby maintaining the stability of the puncture needle. At the same time, by setting up a slider, a sliding column, a sliding rail, and a universal joint on the sliding column, the overall degree of freedom can be greatly increased, thereby better cooperating with the movement and subsequent adjustment of the puncture needle. The ratchet and pawl mechanism ensures the stability of the clamping plate in clamping the needle wings and prevents the needle wings from falling off. At the same time, each movable module is equipped with a corresponding locking screw, which is convenient for the user to operate with one hand, maintains the stability of the puncture needle during use, and facilitates the adjustment and maintenance of the angle of the puncture needle. This greatly reduces the pain and discomfort experienced by the patient during puncture, allowing the patient to complete the entire dialysis process without interruption due to pain, and improving the overall experience during the dialysis process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the first appearance of an embodiment of the present invention.

[0012] Figure 2 This is a second external appearance diagram of an embodiment of the present invention.

[0013] Figure 3 This is a schematic diagram of the third appearance of an embodiment of the present invention.

[0014] Figure 4 This is an embodiment of the present invention. Figure 1 Enlarged diagram of point A in the middle.

[0015] Figure 5 This is an embodiment of the present invention. Figure 3 Enlarged diagram of point B in the middle.

[0016] In the diagram: 11. Base; 12. Airbag cushion; 13. First slide rail; 14. Slider No. 1; 15. Connecting block; 16. Motor; 17. Screw; 18. Air supply pipe; 19. Connecting plate; 20. Pipeline; 21. Rotating plate; 22. Connecting end; 23. Sealing end; 24. Second slide rail; 25. Pin; 26. Connecting rope; 27. Lifting column; 28. Slider No. 2; 29. ​​Locking screw No. 1; 30. Fixing block; 31. Limiting plate; 32. Fixing plate; 33. Locking screw No. 2; 34. Ball sleeve; 35. Locking screw No. 3; 36. Ball; 37. Adhesive plate; 38. Clamping plate; 39. Pawl; 40. Ratchet; 41. Torsion spring; 42. Pulley No. 2; 43. Pulley No. 1; 44. Transmission belt; 61. Adjustment mechanism; Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Combined with appendix Figures 1-5 The blood purification tubing structure includes a first slider 14 slidably disposed on both sides of a base 11, a screw 17 provided on the first slider 14, the screw 17 being helically driven with the first slider 14, and an adjustment mechanism 61 provided on the screw 17.

[0019] The adjusting mechanism 61 includes a second slide rail 24 on the screw 17, one end of which is rotatably connected to one of the screws 17. A second slider 28 is slidably mounted on the second slide rail 24, and a first locking screw 29 is mounted on the second slider 28. The first locking screw 29 is helically driven with the second slider 28 and is used to lock the second slider 28. A fixing block 30 is fixedly mounted on one side of the second slider 28, and a lifting column 27 is slidably mounted on the fixing block 30. A limiting plate 31 is fixedly mounted on the fixing block 30 on one side of the lifting column 27, and the limiting plate 31 is in contact with the lifting column 27. A fixing plate 32 is fixedly mounted on the fixing block 30 away from the limiting plate 31, and a second locking screw 33 is mounted on the fixing plate 32. The second locking screw 33 is helically driven with the second slider 28. The fixed plate 32 is helically driven. The second locking screw 33 is used to lock the lifting column 27. A ball sleeve 34 is fixedly provided below the lifting column 27. A ball 36 is provided inside the ball sleeve 34. The ball 36 is connected to the ball sleeve 34 through a universal joint. A third locking screw 35 is provided on the ball sleeve 34. The third locking screw 35 is helically driven with the ball sleeve 34. The third locking screw 35 is used to lock the ball 36. A bonding plate 37 is fixedly provided below the ball 36. Clamping plates 38 are rotatably provided at both ends of the bonding plate 37. A ratchet 40 is fixedly connected to the clamping plate 38. The ratchet 40 is rotatably connected to the bonding plate 37. A pawl 39 is rotatably provided on the bonding plate 37. A torsion spring 41 is fixed between the pawl 39 and the bonding plate 37. The pawl 39 and the ratchet 40 cooperate with each other.

[0020] Advantageously, the other end of the second slide rail 24 engages with another screw 17, and the other end of the second slide rail 24 and the other screw 17 can be locked by a pin 25, the other end of the pin 25 being fixedly connected to a connecting rope 26, and the other end of the connecting rope 26 being fixedly connected to the screw 17.

[0021] Advantageously, a first pulley 43 is rotatably provided below the first slider 14, and the screw 17 is screwed to the first pulley 43. A connecting block 15 is fixedly provided on one side of the first slider 14, and a second pulley 42 is rotatably provided on the connecting block 15. The first pulley 43 and the second pulley 42 in the same group are wound with the same transmission belt 44. The second pulley 42 and the first pulley 43 are synchronously driven by the transmission belt 44. A connecting block 15 is also fixedly provided on the connecting block 15, and the motor shaft of the connecting block 15 is fixedly connected to the second pulley 42.

[0022] Advantageously, the first slider 14 is slidably disposed in the corresponding first slide rail 13, the first slide rail 13 is disposed on both sides of the base 11, and an airbag 12 is fixedly disposed in the base 11. One end of the airbag 12 is fixedly connected to the air supply pipe 18, and the other end of the air supply pipe 18 is fixedly connected to its corresponding air pump. The airbag 12 is used to stabilize the patient's arm.

[0023] Advantageously, a connecting plate 19 is fixedly provided at one end of the base 11, and a rotating plate 21 is rotatably provided on the connecting plate 19. A tube 20 is slidably provided inside the rotating plate 21. A connecting end 22 is provided at one end of the tube 20. A sealing end 23 is provided on the connecting end 22. The sealing end 23 can be removed from the connecting end 22. The sealing end 23 is used to close the connecting end 22. The other end of the tube 20 is fixedly connected to the corresponding dialysis equipment. The connecting end 22 is used to connect to the tube of the puncture needle.

[0024] How to use this invention:

[0025] In the initial state: the seal 23 is installed on the connecting end 22, the airbag cushion 12 is not inflated, both sets of the first sliders 14 are on the side of the base 11 near the connecting plate 19, the pin 25 locks the second slide rail 24 and the screw 17, the second slider 28 is not locked by the first locking screw 29, the lifting column 27 is at the higher end of the fixing block 30, the lifting column 27 is locked by the second locking screw 33, the ball 36 is locked by the third locking screw 35, the clamping plate 38 is in the unfolded state, and the torsion spring 41 is in the compressed state.

[0026] When using this invention, the user should have the patient lie down, manually pull out the pin 25, and rotate the second slide rail 24 to one or both sides to open the second slide rail 24, so that the second slide rail 24 is no longer parallel to the ground. At this time, the user should place the patient's arm to be punctured on the airbag cushion 12. After the patient's arm is placed, the user can then drive the external air pump to start. After the external air pump starts, it will pump air into the air supply tube 18, thereby injecting air into the airbag cushion 12, causing the airbag cushion 12 to inflate until it expands to a certain extent without causing any negative impact on the patient, maintaining the patient's comfort and stability. Afterwards, the air pump is turned off, and the patient's arm is disinfected and... After the puncture needle is inserted, the second slide rail 24 can be flipped over, and the pin 25 can be inserted between the second slide rail 24 and the screw 17 to lock the second slide rail 24. The user holds one of the lifting columns 27 and drags the lifting column 27 to drive the first slider 14 on both sides to slide the second slide rail 24 directly above one of the puncture needles. Then the motor 16 can be started. After the motor 16 is started, its motor shaft will drive the second pulley 42 to rotate, which in turn drives the first pulley 43 to rotate through the transmission belt 44, causing the screw 17 to descend. The descent is done a suitable distance to facilitate subsequent work. The user needs to hold the puncture needle with one hand to maintain the angle and drag the lifting column 27 with the other hand. After sliding the second slider 28 to directly above the puncture needle, tighten the first locking screw 29 with one hand to lock the second slider 28. Then tighten the second locking screw 33 to release it from locking the lifting column 27. Hold the fitting plate 37 and pull it downwards until its bottom surface is parallel and in contact with the puncture needle's wing. Then manually push the clamping plate 38 to rotate it. This rotation will cause the ratchet 40 to rotate as well. Under the action of the ratchet 40 and the pawl 39, the clamping plate 38 can only rotate in one direction and cannot be flipped, thus maintaining a stable clamping of the puncture needle's wing. Holding the needle in place, after the clamping plate 38 has clamped the puncture needle, the user should still hold the puncture needle and the bonding plate 37 with one hand to maintain stability, while turning the third locking screw 35 with the other hand to lock the ball bearing 36, preventing it from moving further, and turning the second locking screw 33 to maintain the stability of the lifting column 27. Then, the puncture and fixation of another puncture needle can be completed, following the same steps. Afterwards, remove the seal 23, connect the puncture needle tubing to the connecting end 22, and turn on the device. If angle adjustment is needed during the procedure, simply loosen the corresponding second locking screw 33 and the bonding plate 37. After dialysis, remove the puncture needle and turn the second locking screw 33.Raise the lifting column 27, and tighten the second locking screw 33 again to lock the lifting column 27. Manually lift the pawl 39 to open the clamping plate 38 and remove the puncture needle.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tubing structure for blood purification, comprising a first slider (14) slidably disposed on both sides of a base (11), characterized in that: The first slider (14) is provided with a screw (17), the screw (17) and the first slider (14) are driven by a screw, and the screw (17) is provided with an adjustment mechanism (61); The adjusting mechanism (61) includes a second slide rail (24) on the screw (17), one end of the second slide rail (24) being rotatably connected to one of the screws (17), a second slider (28) being slidably mounted on the second slide rail (24), a first locking screw (29) being mounted on the second slider (28), the first locking screw (29) being helically driven with the second slider (28), a fixing block (30) being fixedly mounted on one side of the second slider (28), a lifting column (27) being slidably mounted on the fixing block (30), a limiting plate (31) being fixedly mounted on the fixing block (30) on one side of the lifting column (27), the limiting plate (31) being in contact with the lifting column (27), a fixing plate (32) being fixedly mounted on the end of the fixing block (30) away from the limiting plate (31), a second locking screw (33) being mounted on the fixing plate (32), the second... The locking screw (33) is screwed to the fixing plate (32). A ball sleeve (34) is fixedly provided below the lifting column (27). A ball (36) is provided inside the ball sleeve (34). The ball (36) and the ball sleeve (34) are connected by a universal joint. A No. 3 locking screw (35) is provided on the ball sleeve (34). The No. 3 locking screw (35) is screwed to the ball sleeve (34). The ball (36) is fixed below the fixing plate (32). A bonding plate (37) is provided, and clamping plates (38) are rotatably provided at both ends of the bonding plate (37). A ratchet (40) is fixedly connected to the clamping plate (38), and the ratchet (40) is rotatably connected to the bonding plate (37). A pawl (39) is rotatably provided on the bonding plate (37), and a torsion spring (41) is fixed between the pawl (39) and the bonding plate (37). The pawl (39) and the ratchet (40) cooperate with each other. A first pulley (43) is rotatably provided below the first slider (14), and the screw (17) is screwed to drive the first pulley (43). A connecting block (15) is fixedly provided on one side of the first slider (14), and a second pulley (42) is rotatably provided on the connecting block (15). The first pulley (43) and the second pulley (42) in the same group are wrapped with the same transmission belt (44). The second pulley (42) and the first pulley (43) are synchronously driven through the transmission belt (44). A connecting block (15) is also fixedly provided on the connecting block (15). The motor shaft of the connecting block (15) is fixedly connected to the second pulley (42).

2. The tubing structure for blood purification according to claim 1, characterized in that: The other end of the second slide rail (24) is engaged with another screw (17). The other end of the second slide rail (24) and the other screw (17) can be locked by a pin (25). The other end of the pin (25) is fixedly connected to a connecting rope (26). The other end of the connecting rope (26) is fixedly connected to the screw (17).

3. The tubing structure for blood purification according to claim 1, characterized in that: The first slider (14) is slidably disposed in the corresponding first slide rail (13), which is disposed on both sides of the base (11).

4. The tubing structure for blood purification according to claim 3, characterized in that: An airbag cushion (12) is fixedly installed inside the base (11). One end of the airbag cushion (12) is fixedly connected to the air supply pipe (18), and the other end of the air supply pipe (18) is fixedly connected to its corresponding air pump.

5. The tubing structure for blood purification according to claim 4, characterized in that: A connecting plate (19) is fixedly provided at one end of the base (11). A rotating plate (21) is rotatably provided on the connecting plate (19). A pipe (20) is slidably provided inside the rotating plate (21). A connecting end (22) is provided at one end of the pipe (20). A sealing end (23) is provided on the connecting end (22).

6. The tubing structure for blood purification according to claim 5, characterized in that: The seal (23) can be removed from the connection end (22). The seal (23) is used to close the connection end (22). The other end of the pipeline (20) is fixedly connected to the corresponding dialysis equipment.

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