An arm support device for hemodialysis care

Abstract

The present invention discloses an arm support device for hemodialysis care, which relates to the technical field of hemodialysis care, and comprises a fixed column, a mounting frame is fixedly connected to the top of the fixed column, a motor is fixedly connected to one side of the mounting frame, an eccentric disk is fixedly connected to one end of the motor output shaft, and a first movable frame and a second movable frame are rotatably connected to the outside of the eccentric disk, one end of the first movable frame is rotatably connected to the second connecting rod, and one end of the second movable frame is rotatably connected to the first connecting rod. The rotation of the eccentric disk of the arm support device for hemodialysis care disclosed by the present invention enables the first movable frame and the second movable frame to move up and down, forward and backward within a small range, thereby enabling the patient's arm that is undergoing dialysis to move up and down, forward and backward within a certain range, relaxing the patient's arm muscles that are undergoing dialysis, and at the same time enabling the patient's upper arm and forearm to bend, thereby promoting the patient's blood circulation and preventing numbness in the patient's arm.

Description

Technical Field

[0001] The invention relates to the technical field of hemodialysis nursing, and in particular to an arm supporting device for hemodialysis nursing. Background Art

[0002] Hemodialysis is one of the renal replacement therapies for patients with acute and chronic renal failure. It drains blood from the body to the outside of the body and passes it through a dialyzer composed of countless hollow fibers. The blood and an electrolyte solution containing electrolytes at concentrations similar to those in the body exchange substances inside and outside the hollow fibers through the principles of diffusion, ultrafiltration, adsorption and convection, thereby removing metabolic waste from the body, maintaining electrolyte and acid-base balance, and removing excess water from the body. The entire process of returning the purified blood is called hemodialysis.

[0003] Maintaining a posture for a long time will cause blood circulation problems, peripheral ischemia, insufficient blood supply to the hands and feet, and numbness. If the patient's diet is not nutritionally adequate during dialysis, it will lead to malnutrition in the body. During dialysis, the body's energy will be consumed, and nutrients will be lost, making the patient weak. Generally, patients who undergo dialysis through the arm blood vessels will experience arm numbness during the dialysis process. They will also feel weak all over and unable to move their arms effectively, which will affect the patient's physical health. Summary of the invention

[0004] The invention discloses an arm support device for hemodialysis nursing, which aims to solve the technical problem that patients who generally undergo hemodialysis through arm blood vessels will experience arm numbness and general fatigue during the hemodialysis process and cannot effectively move their arms.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An arm support device for hemodialysis care, comprising a fixed column, a mounting frame fixedly connected to the top of the fixed column, a motor fixedly connected to one side of the mounting frame, an eccentric disk fixedly connected to one end of the motor output shaft, a first movable frame and a second movable frame rotatably connected to the outside of the eccentric disk, one end of the first movable frame rotatably connected to the second connecting rod, one end of the second movable frame rotatably connected to the first connecting rod, the other end of the first connecting rod rotatably connected to a connecting cylinder, the other end of the second movable frame fixedly connected to a first supporting plate, and the top of the first movable frame fixedly connected to the second supporting plate;

[0007] An adjustment mechanism is installed on one side of the mounting frame, and the adjustment mechanism is used to adjust the movement range of the first movable frame and the second movable frame;

[0008] The first supporting plate and the second supporting plate are respectively provided with arm fixing mechanisms, which are used to fix the patient's arm;

[0009] The other end of the first movable frame is equipped with an emergency stop mechanism, which is used to shut down the motor in an emergency;

[0010] A pipe fixing mechanism is installed on the edge of the upper surface of the second supporting plate, and the pipe fixing mechanism is used to fix the pipe used for dialysis;

[0011] A supporting mechanism is installed at the bottom of the fixing column, and the supporting mechanism is used to support the fixing column and the mounting frame.

[0012] In a preferred solution, the adjustment mechanism includes an adjustment threaded rod rotatably connected to a side of the mounting frame close to the connecting cylinder, and a ratchet is fixedly connected to the bottom end of the adjustment threaded rod;

[0013] A rotating mechanism is installed at the bottom of the ratchet, and the rotating mechanism is used to rotate the ratchet.

[0014] The rotating mechanism includes a fixed shell fixedly connected to one side of the mounting frame near the ratchet position, a rotating shell is rotatably connected inside the fixed shell, a toggle rod is fixedly connected to one side of the rotating shell, a paddle is rotatably connected to the upper surface of the rotating shell, and a pawl is fixedly connected to the bottom of the paddle.

[0015] In a preferred embodiment, the arm fixing mechanism includes a third fixing belt fixedly connected to the upper surface of the second movable frame, a first fixing belt fixedly connected to the edge of one end of the upper surface of the second support plate, and a second fixing belt fixedly connected to the edge of the other end of the upper surface of the second support plate.

[0016] In a preferred embodiment, the emergency stop mechanism includes a mounting plate fixedly connected to one end of the first movable frame, a handle is fixedly connected to one side of the mounting plate, a brake is rotatably connected to one side of the mounting plate near the handle, a travel switch is fixedly connected to one side of the mounting plate near the brake, and one end of the brake is rotatably connected to a connecting strip.

[0017] In a preferred embodiment, the pipeline fixing mechanism includes a fixing plate fixedly connected to an edge of one side of the second supporting plate, one side of the fixing plate is rotatably connected to two mounting strips, one side of the mounting strip is fixedly connected to a plurality of connecting blocks, and a card groove is designed inside the connecting block.

[0018] In a preferred solution, the support mechanism includes a plurality of connecting rods fixedly connected to the bottom of the fixed column, one end of the connecting rods is respectively threadedly connected with an adjusting bolt, and the bottom end of the adjusting bolt is rotatably connected to a supporting suction cup.

[0019] As can be seen from the above, the arm support device for hemodialysis care provided by the present invention has the following technical effects.

[0020] First, by starting the motor, the motor rotates to drive the eccentric disk. Due to the eccentric design of the eccentric disk and the fixed position of the connecting cylinder, the rotation of the eccentric disk causes the first movable frame and the second movable frame to move up and down, front and back in a small range, and causes a small range of relative rotation between the first movable frame and the second movable frame, so that the patient's arm undergoing dialysis can move up and down, front and back in a certain range, relax the patient's arm muscles undergoing dialysis, and at the same time allow the patient's upper arm and forearm to bend in a small range, thereby promoting blood circulation in the patient's joints and preventing numbness in the patient's arm.

[0021] Secondly, as each person's arm length is different, if you feel that the range of motion of your arm is small, you can pull the toggle lever, and the ratchet drives the adjusting threaded rod to rotate, thereby adjusting the height of the connecting cylinder. The rotation direction of the pawl can be rotated so that the ratchet can rotate forward and reverse, thereby controlling the rise and fall of the connecting cylinder. When the connecting cylinder rises, the relative rotation range between the first movable frame and the second movable frame becomes smaller, and when the connecting cylinder descends, the relative rotation range between the first movable frame and the second movable frame becomes larger, thereby achieving the effect of adjusting the range of motion of the patient's arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front structural schematic diagram of an arm support device for hemodialysis care proposed by the present invention.

[0023] Figure 2 This is a schematic rear structural view of an arm support device for hemodialysis care proposed by the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the third fixing belt of the arm support device for hemodialysis care proposed by the present invention.

[0025] Figure 4 This is a schematic diagram of the partial structure of an arm support device for hemodialysis care proposed by the present invention.

[0026] Figure 5 This is a schematic diagram of the rotating shell structure of an arm support device for hemodialysis care proposed by the present invention.

[0027] Figure 6 This is a schematic diagram of the ratchet structure of an arm support device for hemodialysis care proposed by the present invention.

[0028] Figure 7 This is a schematic diagram of the installation bar structure of an arm support device for hemodialysis care proposed by the present invention.

[0029] Figure 8 This is a schematic diagram of the brake structure of an arm support device for hemodialysis care proposed by the present invention.

[0030] In the figure: 1. fixed column; 2. mounting frame; 3. first supporting plate; 4. second supporting plate; 5. first movable frame; 6. second movable frame; 7. adjusting bolt; 8. supporting suction cup; 9. connecting rod; 10. mounting plate; 11. handle; 12. first fixing belt; 13. fixing plate; 14. second fixing belt; 15. third fixing belt; 16. motor; 17. eccentric disk; 18. first connecting rod; 19. connecting cylinder; 20. adjusting threaded rod; 21. second connecting rod; 22. ratchet; 23. paddle; 24. toggle rod; 25. rotating shell; 26. fixed shell; 27. pawl; 28. mounting strip; 29. ​​connecting block; 30. travel switch; 31. connecting strip; 32. brake. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] The arm support device for hemodialysis care disclosed in the present invention is mainly used for patients who generally undergo hemodialysis through arm blood vessels. During the hemodialysis process, the patient may experience arm numbness, general fatigue, and inability to effectively move the arm.

[0033] Reference Figure 1-Figure 8 , an arm support device for hemodialysis nursing, comprising a fixed column 1, a mounting frame 2 is fixedly connected to the top of the fixed column 1, a motor 16 is fixedly connected to one side of the mounting frame 2, an eccentric disk 17 is fixedly connected to one end of the output shaft of the motor 16, a first movable frame 5 and a second movable frame 6 are rotatably connected to the outside of the eccentric disk 17, one end of the first movable frame 5 is rotatably connected to a second connecting rod 21, one end of the second movable frame 6 is rotatably connected to a first connecting rod 18, the other end of the first connecting rod 18 is rotatably connected to a connecting cylinder 19, the other end of the second movable frame 6 is fixedly connected to a first supporting plate 3, and the top of the first movable frame 5 is fixedly connected to a second supporting plate 4;

[0034] An adjustment mechanism is installed on one side of the mounting frame 2, and the adjustment mechanism is used to adjust the movement range of the first movable frame 5 and the second movable frame 6;

[0035] The first supporting plate 3 and the second supporting plate 4 are respectively provided with arm fixing mechanisms, which are used to fix the patient's arms;

[0036] The other end of the first movable frame 5 is equipped with an emergency stop mechanism, which is used to shut down the motor 16 in an emergency;

[0037] A pipe fixing mechanism is installed on the upper surface edge of the second supporting plate 4, and the pipe fixing mechanism is used to fix the pipe used for dialysis;

[0038] A supporting mechanism is installed at the bottom of the fixing column 1 , and the supporting mechanism is used to support the fixing column 1 and the mounting frame 2 .

[0039] In this embodiment, since the dialysis time is generally 3-4 hours, the patient's arm is in one position for a long time, which will make the blood flow in the patient's arm poor, thereby causing the patient's arm to become numb. In addition, due to the effect of dialysis, the dialysis patient will feel hungry and weak in the limbs, and will be unable to move the arm. By starting the motor 16, the motor 16 rotates to drive the eccentric disk 17. Due to the eccentric design of the eccentric disk 17 and the fixed position of the connecting cylinder 19, the rotation of the eccentric disk 17 causes the first movable frame 5 and the second movable frame 6 to move up and down and forward and backward within a small range. Since the position of the connecting cylinder 19 is fixed, The first movable frame 5 and the second connecting rod 21 and the second movable frame 6 and the first connecting rod 18 will respectively rotate relative to each other within a certain range, so that the first movable frame 5 and the second movable frame 6 will rotate relative to each other within a small range, so that the patient's arm undergoing dialysis can move up and down, forward and backward within a certain range, and relax the patient's arm muscles undergoing dialysis. At the same time, the first movable frame 5 and the second movable frame 6 will rotate relative to each other within a small range, so that the patient's upper arm and forearm can be bent within a small range, thereby promoting blood circulation at the patient's joints and preventing numbness in the patient's arm.

[0040] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 In a preferred embodiment, the adjustment mechanism includes an adjustment threaded rod 20 rotatably connected to the mounting frame 2 near the connecting cylinder 19, and a ratchet 22 is fixedly connected to the bottom end of the adjustment threaded rod 20;

[0041] A rotating mechanism is installed at the bottom of the ratchet 22 , and the rotating mechanism is used to rotate the ratchet 22 .

[0042] The rotating mechanism includes a fixed shell 26 fixedly connected to one side of the mounting frame 2 near the ratchet 22, the interior of the fixed shell 26 is rotatably connected to a rotating shell 25, one side of the rotating shell 25 is fixedly connected to a toggle rod 24, the upper surface of the rotating shell 25 is rotatably connected to a paddle 23, and the bottom of the paddle 23 is fixedly connected to a pawl 27.

[0043] In this embodiment, each person's arm length is different. If the range of motion of the arm is small, the toggle rod 24 can be pulled to make the rotating shell 25 and the pawl 27 drive the ratchet 22 to rotate, and the ratchet 22 drives the adjusting threaded rod 20 to rotate, thereby adjusting the height of the connecting cylinder 19. By rotating the paddle 23, the rotation direction of the pawl 27 can be rotated, so that the ratchet 22 can rotate forward and reverse, thereby controlling the rise and fall of the connecting cylinder 19. When the connecting cylinder 19 rises, the relative rotation range between the first movable frame 5 and the second movable frame 6 becomes smaller, and when the connecting cylinder 19 descends, the relative rotation range between the first movable frame 5 and the second movable frame 6 becomes larger, thereby achieving the effect of adjusting the range of motion of the patient's arm.

[0044] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In a preferred embodiment, the arm fixing mechanism includes a third fixing belt 15 fixedly connected to the upper surface of the second movable frame 6, a first fixing belt 12 is fixedly connected to the edge position of one end of the upper surface of the second support plate 4, and a second fixing belt 14 is fixedly connected to the edge position of the other end of the upper surface of the second support plate 4.

[0045] In this embodiment, the patient sits on a chair, places the device on the dialysis arm, places the upper arm on the first support plate 3, places the forearm on the second support plate 4, fixes the upper arm on the first support plate 3 by the third fixing belt 15, and fixes the forearm on the second support plate 4 by the first fixing belt 12 and the second fixing belt 14. Due to the design of the interval between the first fixing belt 12 and the second fixing belt 14, the blood vessels used for dialysis on the patient's forearm are exposed, which does not affect the installation of the dialysis pipeline.

[0046] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8 In a preferred embodiment, the emergency stop mechanism includes a mounting plate 10 fixedly connected to one end of the first movable frame 5, a handle 11 is fixedly connected to one side of the mounting plate 10, a brake 32 is rotatably connected to one side of the mounting plate 10 near the handle 11, a travel switch 30 is fixedly connected to one side of the mounting plate 10 near the brake 32, and one end of the brake 32 is rotatably connected to a connecting strip 31.

[0047] In this embodiment, if the patient's arm feels discomfort during the dialysis process, the patient can pinch the brake 32 with his hand to rotate the brake 32 to drive the connecting bar 31 to move, so that the travel switch 30 sends an electrical signal to turn off the motor 16, so that the first movable frame 5 and the second movable frame 6 stop moving, thereby stopping the patient's arm from moving, thereby protecting the patient's safety.

[0048] Furthermore, the patient's hand can be grasped on the handle 11, so that the patient's arm posture is more relaxed, and the dialysis arm has a force point.

[0049] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8 In a preferred embodiment, the pipeline fixing mechanism includes a fixing plate 13 fixedly connected to an edge of one side of the second supporting plate 4, one side of the fixing plate 13 is rotatably connected to two mounting strips 28, one side of the mounting strips 28 is fixedly connected to a plurality of connecting blocks 29, and a card groove is designed inside the connecting block 29.

[0050] In this embodiment, the nurse installs the dialysis tube on the blood vessel of the patient's forearm and starts dialysis by clamping the dandruff tube on the multiple connecting blocks 29 on the two mounting strips 28. The design of the connecting blocks 29 allows the card groove inside the connecting blocks 29 to clamp the dialysis tube. The rotation between the mounting strip 28 and the fixing plate 13 has a certain damping effect, so that the dialysis tube will not move easily, making the connection between the tube used for dialysis and the blood vessel on the patient's forearm more stable, thereby stabilizing the dialysis tube.

[0051] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In a preferred embodiment, the supporting mechanism includes a plurality of connecting rods 9 fixedly connected to the bottom of the fixed column 1, one end of the connecting rods 9 is respectively threadedly connected with an adjusting bolt 7, and the bottom end of the adjusting bolt 7 is rotatably connected with a supporting suction cup 8.

[0052] The eccentric disk 17 is slidably connected to the second movable frame 6 and the first movable frame 5, the connecting cylinder 19 is rotationally connected to the second connecting rod 21, the adjusting threaded rod 20 is threadedly connected to the connecting cylinder 19, and the rotating shell 25 rotates in the fixed shell 26 without falling out from the fixed shell 26. The pawl 27 is used in conjunction with the ratchet 22.

[0053] The first fixing strap 12 , the second fixing strap 14 and the third fixing strap 15 are made of a fiber material, and Velcro is provided at both ends for fixing them on the patient's arm.

[0054] The connecting bar 31 and the travel switch 30 are rotationally connected, and the motor 16 and the travel switch 30 are electrically connected.

[0055] In this embodiment, if the ground is uneven, it may affect the patient's dialysis. By rotating the adjusting bolt 7, the position of the supporting suction cup 8 is adjusted so that multiple supporting suction cups 8 are in contact with the ground. If the ground is smooth, the supporting suction cup 8 can be adsorbed on the ground, making the fixing column 1 and the mounting frame 2 more stable, so that the patient will not be affected by the uneven ground when using the equipment.

[0056] Working principle: When in use, the patient sits on a chair, places the device on the dialysis arm, places the upper arm on the first support plate 3, places the forearm on the second support plate 4, fixes the upper arm on the first support plate 3 by the third fixing belt 15, and fixes the forearm on the second support plate 4 by the first fixing belt 12 and the second fixing belt 14. Due to the design of the interval between the first fixing belt 12 and the second fixing belt 14, the blood vessels used for dialysis on the patient's forearm are exposed, which does not affect the installation of the dialysis pipeline. The nurse installs the dialysis pipeline on the blood vessel of the patient's forearm and starts dialysis. The dandruff multi-pipeline is clamped on the multiple connecting blocks 29 on the two mounting strips 28. The design of the connecting block 29 enables the card slot inside the connecting block 29 to clamp the dialysis pipeline. The rotation between the mounting strip 28 and the fixing plate 13 has a certain The damping effect prevents the dialysis tube from moving easily, and makes the connection between the dialysis tube and the blood vessels on the patient's forearm more stable, which has the effect of stabilizing the dialysis tube. If the ground is uneven, it may affect the patient's dialysis. By turning the adjustment bolt 7, the position of the support suction cup 8 is adjusted so that multiple support suction cups 8 are in contact with the ground. If the ground is smooth, the support suction cup 8 can be adsorbed on the ground, making the fixed column 1 and the mounting frame 2 more stable, so that the patient will not be affected by the uneven ground when using the equipment. Since the dialysis time generally takes 3-4 hours, the patient's arm is in a posture for a long time, which will make the blood flow in the patient's arm poor, thereby causing the patient's arm to numb. In addition, due to the effect of dialysis, the dialysis patient will feel hungry and weak in the limbs and cannot move the arm. By starting the motor 16,The rotation of the motor 16 drives the eccentric disk 17. Due to the eccentric design of the eccentric disk 17 and the fixed position of the connecting cylinder 19, the rotation of the eccentric disk 17 causes the first movable frame 5 and the second movable frame 6 to move up and down, front and back within a small range. Due to the fixed position of the connecting cylinder 19, a certain range of relative rotation will occur between the first movable frame 5 and the second connecting rod 21 and between the second movable frame 6 and the first connecting rod 18, respectively, so that a small range of relative rotation occurs between the first movable frame 5 and the second movable frame 6, so that the patient's arm undergoing dialysis moves up and down, front and back within a certain range, and the patient's arm muscles undergoing dialysis are relaxed. At the same time, a small range of relative rotation occurs between the first movable frame 5 and the second movable frame 6, so that the patient's upper arm and forearm can be bent in a small range, which promotes blood circulation in the patient's joints and prevents numbness in the patient's arm. The arm length of each person is different. If you feel that the range of motion of your arm is small, you can pull the toggle rod 24 to make the rotating shell 25 and the ratchet 2 7 drives the ratchet 22 to rotate, and the ratchet 22 drives the adjusting threaded rod 20 to rotate so as to adjust the height of the connecting cylinder 19. By rotating the paddle 23, the rotation direction of the pawl 27 can be rotated, so that the ratchet 22 can rotate forward and reverse, thereby realizing the control of the rise and fall of the connecting cylinder 19. When the connecting cylinder 19 rises, the relative rotation range between the first movable frame 5 and the second movable frame 6 becomes smaller, and when the connecting cylinder 19 falls, the relative rotation range between the first movable frame 5 and the second movable frame 6 becomes larger, which plays the effect of adjusting the range of motion of the patient's arm. The patient's hand can be grasped on the handle 11, so that the posture of the patient's arm is more relaxed, so that the dialysis arm has a force point. If the patient's arm is uncomfortable during the dialysis process, the brake 32 can be pinched by hand to rotate the brake 32 to drive the connecting bar 31 to move, so that the travel switch 30 sends an electrical signal to turn off the motor 16, so that the first movable frame 5 and the second movable frame 6 stop moving, so that the patient's arm stops moving, which plays the effect of protecting the patient's safety. ,

[0057] 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. An arm support device for hemodialysis care, comprising a fixed column (1), characterized in that: The top of the fixed column (1) is fixedly connected to a mounting frame (2), one side of the mounting frame (2) is fixedly connected to a motor (16), one end of the output shaft of the motor (16) is fixedly connected to an eccentric disk (17), the outside of the eccentric disk (17) is rotatably connected to a first movable frame (5) and a second movable frame (6), one end of the first movable frame (5) is rotatably connected to a second connecting rod (21), one end of the second movable frame (6) is rotatably connected to a first connecting rod (18), the other end of the first connecting rod (18) is rotatably connected to a connecting cylinder (19), the connecting cylinder (19) and the second connecting rod (21) are rotatably connected, the other end of the second movable frame (6) is fixedly connected to a first supporting plate (3), and the top of the first movable frame (5) is fixedly connected to the second supporting plate (4); An adjustment mechanism is installed on one side of the mounting frame (2), and the adjustment mechanism is used to adjust the movement range of the first movable frame (5) and the second movable frame (6); The first supporting plate (3) and the second supporting plate (4) are respectively provided with arm fixing mechanisms, the fixing mechanisms being used to fix the patient's arm; An emergency stop mechanism is installed at the other end of the first movable frame (5), and the emergency stop mechanism is used to shut down the motor (16) in an emergency; A pipe fixing mechanism is installed on the edge of the upper surface of the second supporting plate (4), and the pipe fixing mechanism is used to fix the pipe used for dialysis; A supporting mechanism is installed at the bottom of the fixing column (1), and the supporting mechanism is used to support the fixing column (1) and the mounting frame (2); The adjustment mechanism comprises an adjustment threaded rod (20) rotatably connected to a side of the mounting frame (2) close to the connection cylinder (19), and a ratchet (22) is fixedly connected to the bottom end of the adjustment threaded rod (20); A rotating mechanism is installed at the bottom of the ratchet wheel (22), and the rotating mechanism is used to rotate the ratchet wheel (22).

2. The arm support device for hemodialysis care according to claim 1, characterized in that: The rotating mechanism comprises a fixed shell (26) fixedly connected to one side of the mounting frame (2) near the ratchet wheel (22); a rotating shell (25) is rotatably connected inside the fixed shell (26); a toggle rod (24) is fixedly connected to one side of the rotating shell (25); a paddle (23) is rotatably connected to the upper surface of the rotating shell (25); and a ratchet (27) is fixedly connected to the bottom of the paddle (23).

3. The arm support device for hemodialysis care according to claim 2, characterized in that: The arm fixing mechanism comprises a third fixing belt (15) fixedly connected to the upper surface of the second movable frame (6), a first fixing belt (12) fixedly connected to the edge position of one end of the upper surface of the second supporting plate (4), and a second fixing belt (14) fixedly connected to the edge position of the other end of the upper surface of the second supporting plate (4).

4. The arm support device for hemodialysis care according to claim 3, characterized in that: The emergency stop mechanism comprises a mounting plate (10) fixedly connected to one end of the first movable frame (5); a handle (11) is fixedly connected to one side of the mounting plate (10); a brake (32) is rotatably connected to a position of the one side of the mounting plate (10) close to the handle (11); a travel switch (30) is fixedly connected to a position of the one side of the mounting plate (10) close to the brake (32); and a connecting strip (31) is rotatably connected to one end of the brake (32).

5. The arm support device for hemodialysis care according to claim 4, characterized in that: The pipeline fixing mechanism comprises a fixing plate (13) fixedly connected to an edge of one side of the second supporting plate (4); one side of the fixing plate (13) is rotatably connected to two mounting strips (28); one side of the mounting strip (28) is fixedly connected to a plurality of connecting blocks (29); and the connecting blocks (29) are provided with slots inside.

6. The arm support device for hemodialysis care according to claim 5, characterized in that: The support mechanism comprises a plurality of connecting rods (9) fixedly connected to the bottom of the fixed column (1), one end of each connecting rod (9) being threadedly connected to an adjusting bolt (7), and the bottom end of each adjusting bolt (7) being rotatably connected to a supporting suction cup (8).

7. The arm support device for hemodialysis care according to claim 6, characterized in that: The eccentric disk (17) is slidably connected to the second movable frame (6) and the first movable frame (5), the adjusting threaded rod (20) is threadedly connected to the connecting cylinder (19), and the rotating shell (25) rotates in the fixed shell (26) without falling out of the fixed shell (26). The pawl (27) cooperates with the ratchet wheel (22) for use.

8. The arm support device for hemodialysis care according to claim 7, characterized in that: The first fixing belt (12), the second fixing belt (14) and the third fixing belt (15) are made of a fiber material, and are provided with Velcro at both ends for fixing on the patient's arm.

9. The arm support device for hemodialysis care according to claim 8, characterized in that: The connecting strip (31) and the travel switch (30) are rotationally connected, and the motor (16) and the travel switch (30) are electrically connected.

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