A nephrology hemodialysis auxiliary device

Abstract

This invention relates to the field of medical auxiliary instruments, and more particularly to a hemodialysis auxiliary device for nephrology. This invention provides a hemodialysis auxiliary device for nephrology that can stably support the patient's arm on the side of the fistula and provides movable fixation for the catheter connected to the fistula puncture needle. It is flexible in use and can effectively prevent muscle spasms in the arm, thus assisting the patient in undergoing more comfortable hemodialysis treatment. The hemodialysis auxiliary device for nephrology includes a base plate, a screw, and a rotating handle; the screw is threaded to the base plate, and the rotating handle is located at the bottom end of the screw. This invention uses a round-headed top rod to limit the inclined ring, locking the height of the support ring plate and the fixed ring plate. Simultaneously, a toothed ring limits the gear, locking the swing angle of the support ring plate and the fixed ring plate. This allows the support ring plate to limit the patient's arm on the side of the fistula, assisting the patient in undergoing stable hemodialysis treatment.

Description

Technical Field

[0001] This invention relates to the field of medical auxiliary instruments, and more particularly to an auxiliary device for hemodialysis in nephrology. Background Technology

[0002] Chronic kidney disease is a common illness that can progress to uremia if it worsens, seriously endangering people's health. Hemodialysis is currently the main kidney replacement therapy. Hemodialysis involves drawing blood out of the body, using the principles of diffusion, convection, and adsorption to remove metabolic waste products and water, regulate electrolyte balance, and then returning the purified blood to the body.

[0003] When patients undergo hemodialysis, an arteriovenous fistula (AVF) puncture is required, which necessitates keeping the arm on the side of the fistula extended for an extended period. To prevent the patient's arm from dangling outside the bed, staff use auxiliary devices to restrain the arm and secure the catheter connected to the puncture needle, preventing the needle from slipping due to arm movement. However, restraining the arm on the side of the fistula can lead to immobility, and maintaining one position for a long time can cause muscle spasms or stiffness, resulting in severe discomfort for the patient. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned technical problems by providing a hemodialysis support device for nephrology. This device can stably support the patient's arm on the side of the fistula and provide movable fixation for the catheter connected to the fistula puncture needle. It is more flexible in use and can effectively prevent muscle spasms in the arm, thereby assisting the patient in undergoing more comfortable hemodialysis treatment.

[0005] A hemodialysis auxiliary device for nephrology includes a base plate, a screw, a rotating handle, a limiting pressure plate, a hand fixing mechanism, and an adjustment fixing mechanism. The screw is threadedly connected to the base plate, the rotating handle is fixedly connected to the bottom end of the screw, the limiting pressure plate is fixedly connected to the side of the base plate, the hand fixing mechanism is disposed on the base plate, and the adjustment fixing mechanism is disposed on the hand fixing mechanism and connected to the base plate.

[0006] Furthermore, the hand fixing mechanism includes a supporting rotating rod, a supporting ring plate, hinges, a fixing ring plate, an upper soft pad, a lower soft pad, and a magnet. The supporting rotating rod is slidably connected to the base plate. The supporting ring plate is fixedly connected to the top of the supporting rotating rod. The fixing ring plate is connected to one side of the top of the supporting ring plate via two hinges. The fixing ring plate is made of iron. The upper soft pad is fixedly connected to the inner wall of the fixing ring plate. The upper soft pad is made of soft material. The lower soft pad is fixedly connected to the inner wall of the supporting ring plate. The lower soft pad is made of soft material. The magnet is fixedly connected to one side of the upper part of the supporting ring plate and magnetically attracts the fixing ring plate.

[0007] Furthermore, the fixing ring plate has two inner placement slots on the lower side away from the hinge, and the upper soft pad has two outer placement slots on the lower side away from the hinge, and the inner placement slots of the fixing ring plate coincide with the outer placement slots of the upper soft pad.

[0008] Furthermore, the inner sides of both the upper and lower soft pads are provided with several friction grooves.

[0009] Furthermore, the adjustment and fixing mechanism includes a spring ring, a bevel ring, a gear, a toothed ring, a round-headed push rod, and a return spring. One end of the spring ring is fixedly connected to the bottom of the base plate, and the other end of the spring ring is rotatably connected to the support rod. The bevel ring is fixedly connected to the upper part of the support rod, and the outer wall of the bevel ring has a bevel. The gear is fixedly connected to the support rod and is located below the bevel ring. The toothed ring is fixedly connected to the side of the base plate and is located above the toothed ring. The gear meshes with the toothed ring. The round-headed push rod is slidably connected to the upper part of the base plate and contacts the lower part of the bevel of the bevel ring. A return spring is connected between the base plate and the round-headed push rod.

[0010] Furthermore, it also includes a conduit fixing mechanism, which is mounted on the fixing ring plate and connected to the support ring plate. The conduit fixing mechanism includes a guide arc plate, a sliding pressure ring, a semi-circular base, a passive pressure ring, a second magnet, a third magnet, a sloping top rod, a second return spring, and a pressing circular plate. Guide arc plates are fixedly connected to the inner walls of the two inner placement slots on both sides of the fixing ring plate. Two guide arc plates form a group, and a sliding pressure ring is slidably connected between the two guide arc plates. Two semi-circular bases are fixedly connected to the top of the support ring plate on the side away from the hinge. The two semicircular bases are symmetrically arranged, with each semicircular base containing a passive pressure ring. Each sliding pressure ring is fixedly connected to a magnet 2, and each passive pressure ring is fixedly connected to a magnet 3. The magnets 2 and 3 have opposite magnetic properties and attract each other. The lower part of the fixed ring plate, away from the hinge, is slidably connected to two inclined top rods. The two inclined top rods are symmetrically arranged, and each inclined top rod is connected to the fixed ring plate with a return spring 2. Each inclined top rod is fixedly connected to a pressing circular plate.

[0011] Furthermore, it also includes constant temperature heating pads, with several constant temperature heating pads fixedly connected to the inner walls of both the upper and lower soft pads.

[0012] Furthermore, it also includes an annular pressure plate, a switch button, an electric push rod, and a soft collar. The annular pressure plate is fixedly connected to the supporting rotating rod, the gear is located inside the annular pressure plate, the switch button is fixedly connected to the upper side of the base plate, the switch button is located below the annular pressure plate, the electric push rod is fixedly connected to the upper part of the supporting rotating rod, the electric push rod is located between the supporting ring plate and the inclined ring, and the soft collar is fixedly connected to the telescopic rod of the electric push rod. The soft collar is made of a soft material.

[0013] Furthermore, the switch button is equipped with a switch, and the electric push rod is connected to the switch button via Bluetooth.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The patient places his arm between the upper and lower soft pads. The two inner placement slots of the fixing ring plate will limit the two catheters connected to the puncture needle to prevent the catheters from being squeezed. Then the patient swings his arm horizontally and swings it to a suitable angle. Then the patient gently presses down on the support ring plate so that the round-headed top rod limits the inclined ring and locks the height of the support ring plate and the fixing ring plate. At the same time, the gear moves down and meshes with the toothed ring. The toothed ring limits the gear to prevent the gear from rotating, thereby locking the swing angle of the support ring plate and the fixing ring plate. This allows the support ring plate to better support the patient's fistula-side arm and limit it, assisting the patient in stably performing hemodialysis treatment.

[0015] 2. The sliding and passive pressure rings clamp the catheter, providing protection and limitation. When the patient's arm rotates slightly, it pulls the catheter, causing the sliding and passive pressure rings to swing upwards along the guide arc plate. This allows the sliding and passive pressure rings to provide movable limitation of the catheter, preventing the patient's arm from pulling on the catheter during movement and avoiding loosening of the catheter that could affect hemodialysis treatment. Compared to a fixed limitation of the catheter, this invention allows the patient's arm a certain range of motion without causing the puncture needle to slip out, making it more flexible and allowing the patient to be more comfortable during hemodialysis treatment.

[0016] 3. During hemodialysis treatment, the external blood is delivered to the patient's arm, causing a drop in arm temperature. Several constant-temperature heating patches heat the inside of the upper and lower soft pads, thereby heating the patient's arm and effectively preventing muscle spasms. At the same time, the soft ring moves back and forth, massaging the patient's forearm and preventing muscle stiffness caused by prolonged inactivity. This massage also effectively prevents arm cramps, reducing discomfort and pain during the infusion process, thus helping the patient to undergo hemodialysis treatment more comfortably. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0019] Figure 3 This is a partial three-dimensional structural diagram of the hand fixation mechanism and the catheter fixation mechanism of the present invention.

[0020] Figure 4 This is a partial three-dimensional structural diagram of the catheter fixation mechanism of the present invention.

[0021] Figure 5 This is a partial three-dimensional structural diagram of the hand fixing mechanism and the adjustment fixing mechanism of the present invention.

[0022] Figure 6 For the present invention Figure 5 A magnified three-dimensional structural diagram of A in the middle.

[0023] Figure 7 This is a schematic diagram of a first partial three-dimensional structure of the hand fixing mechanism of the present invention.

[0024] Figure 8 For the present invention Figure 7 A magnified three-dimensional structural diagram of B.

[0025] Figure 9 This is a three-dimensional structural diagram of the fixing ring plate, upper soft pad, and heating plate of the present invention.

[0026] Figure 10 This is a schematic diagram of a second partial three-dimensional structure of the hand fixing mechanism of the present invention.

[0027] Figure 11 This is a schematic diagram of a third partial three-dimensional structure of the hand fixing mechanism of the present invention.

[0028] In the attached diagrams: 1: Base plate, 21: Screw, 22: Rotary handle, 23: Limiting pressure plate, 31: Supporting rotating rod, 32: Supporting ring plate, 33: Hinge, 34: Fixing ring plate, 351: Upper soft pad, 352: Lower soft pad, 36: Magnet one, 41: Spring ring, 42: Inclined ring, 43: Gear, 44: Gear ring, 45: Round-headed top rod, 46: Reset spring one, 51: Guide arc plate, 52: Sliding pressure ring, 53: Semi-circular base, 54: Passive pressure ring, 55: Magnet two, 551: Magnet three, 56: Inclined top rod, 57: Reset spring two, 58: Pressing round plate, 6: Constant temperature heating patch, 71: Annular pressure plate, 72: Switch button, 73: Electric push rod, 74: Soft collar. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] Example 1: A hemodialysis support device for nephrology, such as Figure 1-10 As shown, it includes a base plate 1, a screw 21, a rotating handle 22, a limiting pressure plate 23, a hand fixing mechanism, and an adjusting fixing mechanism. The screw 21 is threadedly connected to the base plate 1, the rotating handle 22 is bolted to the bottom end of the screw 21, the limiting pressure plate 23 is bolted to the upper side of the base plate 1, the hand fixing mechanism is located on the base plate 1, and the adjusting fixing mechanism is located on the hand fixing mechanism and connected to the base plate 1.

[0031] The hand-fixing mechanism includes a supporting rotating rod 31, a supporting ring plate 32, a hinge 33, a fixing ring plate 34, an upper soft pad 351, a lower soft pad 352, and a magnet 36. The supporting rotating rod 31 is slidably connected to the base plate 1 and is vertically arranged. The supporting ring plate 32 is bolted to the top of the supporting rotating rod 31. The fixing ring plate 34 is connected to one side of the top of the supporting ring plate 32 by two hinges 33 and is made of iron. The upper soft pad 351 is fixedly connected to the inner wall of the fixing ring plate 34 and is made of soft material. The lower soft pad 352 is fixedly connected to the inner wall of the supporting ring plate 32 and is made of soft material. The magnet 36 is fixedly connected to the upper side of the supporting ring plate 32 and magnetically attracts the fixing ring plate 34.

[0032] The fixing ring plate 34 has two inner placement slots on the lower side away from the hinge 33, and the upper soft pad 351 has two outer placement slots on the lower side away from the hinge 33, and the inner placement slots of the fixing ring plate 34 coincide with the outer placement slots of the upper soft pad 351.

[0033] The inner sides of both the upper soft pad 351 and the lower soft pad 352 are provided with several friction grooves.

[0034] The adjusting and fixing mechanism includes a spring ring 41, a beveled ring 42, a gear 43, a toothed ring 44, a round-headed push rod 45, and a return spring 46. One end of the spring ring 41 is connected to the bottom of the base plate 1 via a hook. The other end of the spring ring 41 is rotatably connected to the support rotating rod 31. The beveled ring 42 is bolted to the upper part of the support rotating rod 31. The outer wall of the beveled ring 42 has a bevel. The gear 43 is connected to the support rotating rod 31 via a flat key. Below the inclined ring 42, the toothed ring 44 is bolted to the upper side of the base plate 1. The gear 43 is located above the toothed ring 44 and meshes with the toothed ring 44. The round-headed push rod 45 is slidably connected to the upper part of the base plate 1. The round-headed push rod 45 is horizontally set and contacts the lower part of the inclined surface of the inclined ring 42. A return spring 46 is connected between the base plate 1 and the round-headed push rod 45 through a hook. The return spring 46 is sleeved on the round-headed push rod 45.

[0035] The staff first places the limiting pressure plate 23 and the handrail on the side of the bed. The handrail is located between the limiting pressure plate 23 and the screw 21. Then, the staff holds the rotating handle 22 and rotates the screw 21. The screw 21 rotates and moves upward, making contact with the handrail and locking the handrail between the limiting pressure plate 23 and the screw 21, thereby locking the base plate 1. Then, the staff opens the fixing ring plate 34. The fixing ring plate 34 swings upward and disengages from the magnet 36. Next, the patient places the arm on the side of the fistula inside the support ring plate 32. The lower soft pad 352 can increase the patient's comfort. Then, the staff pulls out the two catheters connected to the puncture needle on the patient's arm from the support ring plate 32. The two catheters are respectively located in the two inner placement slots of the fixing ring plate 34. Below the opening, the staff closes the fixing ring plate 34. The fixing ring plate 34 swings downwards and re-engages with the magnet 36. The two catheters on the patient's arm are positioned in the two inner slots of the fixing ring plate 34, thus limiting the catheters and preventing the patient from pressing on them. Because the fixing ring plate 34 is made of iron, the magnet 36 attracts it, further limiting its position. Simultaneously, the lower soft pad 352 increases patient comfort and prevents the catheters from being squeezed. The patient then swings their arm horizontally to a suitable angle. This arm movement causes the support ring plate 32 and the fixing ring plate 34 to swing together, which in turn causes the upper soft pad 351 and the lower soft pad 352 to swing together. As the support ring plate 32 swings, it drives the support rod 31 to rotate. The rotation of the support rod 31 drives the inclined ring 42 and gear 43 to rotate together. When the arm swings to a suitable angle, the patient stops swinging the arm and gently presses down on the support ring plate 32. The downward movement of the support ring plate 32 drives the support rod 31, the fixed ring plate 34, the upper soft pad 351, and the lower soft pad 352 to move downward together, stretching the spring ring 41. The downward movement of the support rod 31 drives the inclined ring 42 and gear 43 to move downward together. The downward movement of the inclined ring 42 pushes the round-headed top rod 45 to move away from the support rod 31, stretching the reset spring 46. As the inclined ring 42 continues to move downward, it will no longer compress the round-headed top rod 45, and the reset spring 46 will reset. This will cause the round-headed top rod 45 to reset. At this time, the round-headed top rod 45 will limit the inclined ring 42, preventing the support rotating rod 31 from moving upward under the elastic force of the spring ring 41. When the inclined ring 42 no longer squeezes the round-headed top rod 45, the gear 43 will just move downward and contact the upper side of the base plate 1, and mesh with the toothed ring 44. The toothed ring 44 will limit the gear 43, preventing the gear 43 from rotating, thereby locking the swing angle of the support ring plate 32 and the fixed ring plate 34. Since the base plate 1 blocks the gear 43, the support rotating rod 31 cannot move downward, thereby locking the height of the support ring plate 32 and the fixed ring plate 34, so that the support ring plate 32 can better support the patient's fistula side arm and limit it, assisting the patient to stably perform hemodialysis treatment.

[0036] After the patient's hemodialysis treatment is completed, the staff first pulls the round-headed push rod 45 to move it away from the supporting rotating rod 31. The return spring 46 is stretched again, and the round-headed push rod 45 moves and disengages from the inclined ring 42. At this time, the round-headed push rod 45 will no longer block the inclined ring 42, and the return of the spring ring 41 will drive the supporting rotating rod 31 to return upward. The return of the supporting rotating rod 31 to return upward will drive the supporting ring plate 32, the fixed ring plate 34, the inclined ring 42, and the gear 43 to return upward together. The return of the gear 43 to return upward will disengage from the gear ring 44, and the gear ring 44 will no longer limit the gear 43. Then the staff releases the round-headed push rod 45. The return spring 46 resets the head rod 45, causing the round head rod 45 to reset. The round head rod 45 then re-engages with the inclined ring 42. The operator then opens the fixing ring plate 34, which swings upward to disengage from the magnet 36. The patient then lifts their arm from the support ring plate 32, and the operator closes the fixing ring plate 34. The fixing ring plate 34 swings downward to re-engage with the magnet 36. The operator then holds the rotating handle 22 and rotates the screw 21 in the opposite direction. The screw 21 rotates in the opposite direction and moves downward to disengage from the handrail. The operator then puts the device away.

[0037] Example 2: Based on Example 1, such as Figures 3-6 As shown, it also includes a conduit fixing mechanism, which is mounted on the fixing ring plate 34 and connected to the support ring plate 32. The conduit fixing mechanism includes a guide arc plate 51, a sliding pressure ring 52, a semi-circular base 53, a passive pressure ring 54, a second magnet 55, a third magnet 551, an inclined top rod 56, a second return spring 57, and a pressing circular plate 58. Guide arc plates 51 are bolted to the inner walls of the two inner placement slots on both sides of the fixing ring plate 34. The two guide arc plates 51 form a group, and a sliding pressure ring 52 is slidably connected between the two guide arc plates 51. Two semi-circular bases 53 are bolted to the top of the support ring plate 32 on the side away from the hinge 33. The two semi-circular bases 53 are symmetrical. The semi-circular base 53 is located in the inner slot of the fixed ring plate 34. A passive pressure ring 54 is placed in each of the two semi-circular bases 53. A magnet 2 55 is fixedly connected to each of the sliding pressure rings 52. A magnet 3 551 is fixedly connected to each of the passive pressure rings 54. The magnets 2 55 and 3 551 have opposite magnetic properties and attract each other. Two inclined top rods 56 are slidably connected to the lower part of the fixed ring plate 34 on the side away from the hinge 33. The two inclined top rods 56 are symmetrically arranged. A return spring 2 57 is connected to the fixed ring plate 34 through a hook. A pressing round plate 58 is fixedly connected to each of the two inclined top rods 56.

[0038] Before the operator opens the fixed ring plate 34, the two pressing discs 58 are pressed and moved closer to the fixed ring plate 34. The movement of the pressing discs 58 causes the inclined top rod 56 to move, compressing the second return spring 57. The inclined top rod 56 then contacts and engages with magnets 2 and 3, separating them. Then the fixed ring plate 34 is opened. The upward swing of the fixed ring plate 34 causes the guide arc plate 51 to swing upward. During the upward swing of the guide arc plate 51, the sliding pressure ring 52 remains stationary under gravity. When the sliding pressure ring 52 is at the end of the guide arc plate 51, the guide arc plate 51... Continuing to swing upwards will cause the sliding pressure ring 52 to swing upwards. Then, the operator releases the two pressing discs 58. The reset spring 57 resets, causing the pressing discs 58 and the inclined top rod 56 to reset together. The reset inclined top rod 56 will disengage from the magnet 551. After the patient places their arm inside the support ring plate 32, the operator places the two catheters connected to the puncture needle into the two passive pressure rings 54 respectively, and then closes the fixing ring plate 34. The downward swing of the fixing ring plate 34 will cause the guide arc plate 51, the sliding pressure ring 52, and the magnet 55 to swing downwards together. The downward swing of the magnet 55 will re-engage with the magnet 551. Since the magnets 55 and 551 have opposite magnetic properties, Magnets 55 and 551 attract each other tightly, causing the sliding retaining ring 52 and the passive retaining ring 54 to clamp the catheter, thus protecting and limiting its movement. Since the upper and lower soft pads 351 and 352 do not completely cover the patient's arm, there is still some room for movement. When the patient's arm rotates slightly, it pulls on the catheter. This pulling causes the sliding retaining ring 52 and the passive retaining ring 54 to swing upwards along the guide arc plate 51, allowing for a movable limitation of the catheter. This prevents the patient's arm from pulling on the catheter during movement, avoiding catheter loosening and affecting hemodialysis treatment. Compared to a fixed limitation of the catheter, the sliding retaining ring 52... The passive pressure ring 54 allows the patient's arm a certain range of motion without affecting the catheter, making it more flexible and allowing the patient to be more comfortable during hemodialysis treatment. When the patient's treatment is over, the staff first presses the two pressing round plates 58 and moves them towards the fixed ring plate 34, so that the inclined top rod 56 separates the second magnet 55 and the third magnet 551. Then, the fixed ring plate 34 is opened so that the sliding pressure ring 52 no longer clamps the catheter. Then, the staff releases the two pressing round plates 58 and allows the inclined top rod 56 to return to its original position. When the fixed ring plate 34 returns to its original position, it will drive the sliding pressure ring 52 to return to its original position. The second magnet 55 will return to its original position and re-engage with the third magnet 551.

[0039] Example 3: Based on Example 2, such as Figures 9-10As shown, it also includes constant temperature heating pads 6, and several constant temperature heating pads 6 are fixedly connected to the inner walls of the upper soft pad 351 and the lower soft pad 352.

[0040] During hemodialysis treatment, the external blood delivered to the patient's arm can lower the arm's temperature, leading to poor blood flow and potentially causing muscle spasms and discomfort. To address this, the staff can apply electricity to the constant-temperature heating patches 6, which heat the inner surfaces of the upper and lower soft pads 351 and 352, thereby warming the patient's arm and effectively preventing muscle spasms. This allows the patient to undergo hemodialysis treatment more comfortably.

[0041] Example 4: Based on Example 3, such as Figures 2-11 As shown, it also includes an annular pressure plate 71, a switch button 72, an electric push rod 73, and a soft collar 74. The annular pressure plate 71 is bolted to the support rotating rod 31. The gear 43 is located inside the annular pressure plate 71. The switch button 72 is fixedly connected to the upper side of the base plate 1 and is located below the annular pressure plate 71. The electric push rod 73 is bolted to the upper part of the support rotating rod 31 and is located between the support ring plate 32 and the inclined ring 42. The soft collar 74 is fixedly connected to the telescopic rod of the electric push rod 73 and is made of soft material.

[0042] The switch button 72 is equipped with a switch, and the electric push rod 73 is connected to the switch button 72 via Bluetooth.

[0043] When the patient places their arm into the support ring plate 32 and simultaneously their forearm into the soft collar 74, the rotation of the support rod 31 causes the annular pressure plate 71, the electric push rod 73, and the soft collar 74 to rotate together. As the support rod 31 moves downwards, it causes the annular pressure plate 71, the electric push rod 73, and the soft collar 74 to move downwards as well. The downward movement of the annular pressure plate 71 brings it into contact with the switch button 72, pressing the switch button 72. Pressing the switch button 72 activates the electric push rod 73, causing its telescopic rod to continuously extend and retract. The soft collar 74 moves back and forth, massaging the patient's forearm and preventing muscle stiffness caused by prolonged inactivity. This massage also helps prevent arm cramps, reducing discomfort and pain during infusion. When the support rod 31 returns to its upward position, it causes the annular pressure plate 71, electric push rod 73, and soft collar 74 to return to their upward positions. The upward return of the annular pressure plate 71 disengages from the switch button 72, at which point the electric push rod 73 is deactivated.

[0044] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A hemodialysis support device for nephrology, characterized in that it includes: It has a base plate (1), a screw (21), a rotating handle (22), a limiting pressure plate (23), a hand fixing mechanism, and an adjustment fixing mechanism. The screw (21) is threadedly connected to the base plate (1). The rotating handle (22) is fixedly connected to the bottom end of the screw (21). The limiting pressure plate (23) is fixedly connected to the upper side of the base plate (1). The hand fixing mechanism is located on the base plate (1). The adjustment fixing mechanism is located on the hand fixing mechanism and connected to the base plate (1). The hand-fixing mechanism includes a support rod (31), a support ring plate (32), a hinge (33), a fixing ring plate (34), an upper soft pad (351), a lower soft pad (352), and a magnet (36). The support rod (31) is slidably connected to the base plate (1). The support ring plate (32) is fixedly connected to the top of the support rod (31). The fixing ring plate (34) is connected to the top of the support ring plate (32) by two hinges (33). On the side, the fixing ring plate (34) is made of iron, the upper soft pad (351) is fixedly connected to the inner wall of the fixing ring plate (34), the upper soft pad (351) is made of soft material, the lower soft pad (352) is fixedly connected to the inner wall of the support ring plate (32), the lower soft pad (352) is made of soft material, the magnet (36) is fixedly connected to the upper side of the support ring plate (32), and the magnet (36) magnetically attracts the fixing ring plate (34). The adjusting and fixing mechanism includes a spring ring (41), a bevel ring (42), a gear (43), a toothed ring (44), a round-headed push rod (45), and a return spring (46). One end of the spring ring (41) is fixedly connected to the bottom of the base plate (1), and the other end of the spring ring (41) is rotatably connected to the support rotating rod (31). The bevel ring (42) is fixedly connected to the upper part of the support rotating rod (31), and the outer wall of the bevel ring (42) is provided with a bevel. The gear (43) is fixedly connected to the support rod (31). On the support rod (31), the gear (43) is located below the inclined ring (42), the gear ring (44) is fixedly connected to the upper side of the base plate (1), the gear (43) is located above the gear ring (44), the gear (43) will mesh with the gear ring (44), the round-headed top rod (45) is slidably connected to the upper part of the base plate (1), the round-headed top rod (45) is in contact with the lower part of the inclined surface of the inclined ring (42), and a return spring (46) is connected between the base plate (1) and the round-headed top rod (45). It also includes a conduit fixing mechanism, which is mounted on a fixing ring plate (34) and connected to a support ring plate (32). The conduit fixing mechanism includes a guide arc plate (51), a sliding pressure ring (52), a semi-circular base (53), a passive pressure ring (54), a second magnet (55), a third magnet (551), a sloping top rod (56), a second reset spring (57), and a pressing round plate (58). Guide arc plates (51) are fixedly connected to the inner walls on both sides of the two inner placement slots of the fixing ring plate (34). The two guide arc plates (51) form a group, and a sliding pressure ring (52) is slidably connected between the two guide arc plates (51). Two semi-circular bases (53) are fixedly connected to the top of the side of the support ring plate (32) away from the hinge (33). The two semi-circular bases (53) are symmetrically arranged. The semi-circular base (53) is located in the inner slot of the fixed ring plate (34). A passive pressure ring (54) is placed in each of the two semi-circular bases (53). A magnet 2 (55) is fixedly connected to each of the sliding pressure rings (52). A magnet 3 (551) is fixedly connected to each of the passive pressure rings (54). The magnets 2 (55) and 3 (551) have opposite magnetic properties. The magnets 2 (55) and 3 (551) attract each other. Two inclined top rods (56) are slidably connected to the lower part of the fixed ring plate (34) away from the hinge (33). The two inclined top rods (56) are symmetrically arranged. A reset spring 2 (57) is connected between the two inclined top rods (56) and the fixed ring plate (34). A pressing round plate (58) is fixedly connected to each of the two inclined top rods (56).

2. The nephrology hemodialysis auxiliary device according to claim 1, characterized in that, The fixing ring plate (34) has two inner placement slots on the lower side away from the hinge (33), and the upper soft pad (351) has two outer placement slots on the lower side away from the hinge (33), and the inner placement slots of the fixing ring plate (34) coincide with the outer placement slots of the upper soft pad (351).

3. A hemodialysis auxiliary device for nephrology according to claim 1, characterized in that, The inner sides of both the upper soft pad (351) and the lower soft pad (352) are provided with several friction grooves.

4. A hemodialysis auxiliary device for nephrology according to claim 3, characterized in that, It also includes constant temperature heating pads (6), and several constant temperature heating pads (6) are fixedly connected to the inner walls of the upper soft pad (351) and the lower soft pad (352).

5. A nephrology hemodialysis auxiliary device according to claim 4, characterized in that, It also includes an annular pressure plate (71), a switch button (72), an electric push rod (73), and a soft collar (74). The annular pressure plate (71) is fixedly connected to the support rotating rod (31). The gear (43) is located inside the annular pressure plate (71). The switch button (72) is fixedly connected to the upper side of the base plate (1). The switch button (72) is located below the annular pressure plate (71). The electric push rod (73) is fixedly connected to the upper part of the support rotating rod (31). The electric push rod (73) is located between the support ring plate (32) and the inclined ring (42). The soft collar (74) is fixedly connected to the telescopic rod of the electric push rod (73). The soft collar (74) is made of soft material.

6. A hemodialysis auxiliary device for nephrology according to claim 5, characterized in that, The switch button (72) is equipped with a switch, and the electric push rod (73) is connected to the switch button (72) via Bluetooth.

Images