Hemodialysis arm care device

Abstract

The present invention relates to the technical field of medical devices, and specifically to a hemodialysis arm care device, comprising a hospital bed and a fixing plate arranged on the hospital bed, and further comprising: a support frame connected to the hospital bed through the fixing plate; an axis rotatably arranged on the support frame, and one end of the axis rotatably connected to an arc-shaped support plate for supporting the arm; a palm fixing component arranged at one end of the arc-shaped support plate for fixing the patient's palm; the palm of the patient's arm end is fixed by the palm fixing component, and then the patient's arm is limited by the arc-shaped support plate, so as to assist the patient to maintain the stability of the arm, thereby avoiding the bending of the dialysis catheter and the falling off of the needle body, and then ensuring the smoothness of blood input and output; at the same time, the patient can move his fingers to alternately press the two force plates, thereby driving the arc-shaped support plate to swing through the linkage component, and then driving the patient's arm to move slightly as a whole, thereby promoting local blood circulation, reducing discomfort, and alleviating anxiety.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a hemodialysis arm care device. Background Art

[0002] In hemodialysis, the patient's blood will pass through a device called a dialyzer, which contains a semipermeable membrane. When the blood flows through the dialyzer, excess waste, salt and water will be filtered out by the semipermeable membrane in the dialyzer, and the clean blood will be recirculated back into the body. When the patient is undergoing hemodialysis, two catheters will be connected to his arms through puncture needles. In order to avoid blood flow obstruction caused by bending and twisting of the catheters, and blood purification failure caused by the puncture needle detaching from the human body, the patient must ensure the stability of his arms throughout the process. The existing devices that can assist in keeping the patient's arms stable are generally only an arc-shaped support plate to support the patient's forearm. In order to avoid compressing the blood vessels in the patient's arm, the arm cannot be fixed to the arc-shaped support plate by a strap, and the positioning effect is not good. For this reason, we propose a hemodialysis arm care device. Summary of the invention

[0003] A technical problem to be solved by the present application is: how to design an arm care device with good positioning effect and ensuring smooth blood flow.

[0004] In order to solve the above technical problems, the embodiment of the present application provides a hemodialysis arm care device, including a bed and a fixing plate arranged on the bed, and also includes:

[0005] A support frame connected to the bed via a fixing plate;

[0006] Axis one is rotatably arranged on the support frame, and one end of the axis one is fixedly connected to an arc-shaped supporting plate for supporting the arm;

[0007] A palm fixing component is arranged at one end of the arc-shaped support plate and is used to fix the patient's palm;

[0008] The palm fixing assembly comprises a rectangular support plate arranged at one end of the arc support plate, a gripping body is arranged on the rectangular support plate, and an elastic member is arranged between the gripping body and the rectangular support plate, and the patient's palm is limited after passing through the gap between the gripping body and the rectangular support plate;

[0009] An elastic strap is provided on the rectangular support plate to fix the patient's wrist;

[0010] Two force-bearing plates are symmetrically arranged on the gripping body;

[0011] The linkage assembly is arranged on the support frame, and the force-bearing plate is connected to the shaft one through the linkage assembly. After the two force-bearing plates are pressed alternately, the linkage assembly is used to drive the shaft one to rotate so that the arc-shaped support plate and the patient's arm swing.

[0012] In some embodiments, the support frame includes a rectangular block arranged on one side of the bed, the rectangular block is provided with a T-shaped slot, and the fixing plate is located in the T-shaped slot to slide and position the rectangular block;

[0013] Two hollow tubes are symmetrically connected to the rectangular block, a slide rod is slidably connected inside the hollow tube, a strip plate is fixedly connected between one ends of the two slide rods, a mounting plate is arranged on the strip plate, and the shaft 1 is rotatably connected to the mounting plate.

[0014] In some embodiments, the linkage assembly includes a deflection plate fixedly connected to the first shaft, one end of the deflection plate is fixedly connected to the second shaft, a push rod is slidably connected to the mounting plate, a rectangular plate is fixedly connected to the push rod, a slide groove is provided on the rectangular plate, one end of the second shaft is located in the slide groove, and the first shaft is driven to rotate in the process of moving the push rod;

[0015] Two injection barrels are symmetrically arranged on the mounting plate, both of which are filled with liquid. Both ends of the push rod are respectively located in the two injection barrels and fixedly connected with pistons. Liquid is filled into one of the injection barrels to push the push rod to move, while the other injection barrel discharges liquid.

[0016] In some embodiments, two injection barrels 2 are symmetrically arranged in the gripping body, and the two injection barrels 2 are also filled with liquid, and the two injection barrels 2 are respectively connected to the two injection barrels 1 through conduits, and a piston 2 is slidably connected in the injection barrel 2, and a push rod is fixedly connected to one side of the piston 2, and the push rod is fixed to the force plate. In the process of pressing one force plate, the push rod is driven to move, and at the same time, the other force plate is pushed out.

[0017] In some embodiments, the elastic member is an elastic band, and the holding body is fixedly connected to the rectangular support plate through the elastic band;

[0018] The contact surface between the arc-shaped support plate and the human body is designed with flexible materials;

[0019] The elastic strap is fixed with Velcro;

[0020] The contact surface between the gripping body and the human body is made of rubber material.

[0021] In some embodiments, a screw is provided on the rectangular block, and one end of the screw passes through the rectangular block and contacts and abuts against the fixing plate;

[0022] A screw rod is also arranged on one of the hollow tubes, and one end of the screw rod passes through the hollow tube and contacts and abuts against the sliding rod.

[0023] In some embodiments, a hollow cylinder is fixedly connected to the mounting plate, a piston three is slidably connected inside the hollow cylinder, one end of the piston three is fixedly connected to a guide rod, one end of the guide rod passes through the hollow cylinder, and a circular plate sleeved on the guide rod is arranged inside the hollow cylinder, a pressure spring is arranged between the circular plate and the piston three, a pressure sensor with one end in contact with the circular plate is arranged inside the hollow cylinder, and an alarm electrically connected to the pressure sensor is arranged on the mounting plate, the hollow cylinder is inflated to push the piston three to move, and the pressure spring is compressed to squeeze the pressure sensor through the circular plate to turn off the alarm;

[0024] An inflatable component is arranged on the mounting plate, the inflatable component is connected to a piston, and an air leakage hole is opened at one end of the hollow cylinder for continuously exhausting air. During the process of moving the push rod, the inflatable component is used to continuously inflate the hollow cylinder.

[0025] In some embodiments, the inflation component includes a round cover fixedly connected to one side of the injection barrel, the round cover is conductively connected to an air inlet pipe and an air outlet pipe, and the air outlet pipe is conductively connected to the hollow cylinder, and a one-way valve is provided in the air inlet pipe and the air outlet pipe. The push rod is moved to allow air to be filled into the hollow cylinder.

[0026] In some embodiments, one end of the guide rod is fixedly connected to a limiting rod, and a slot is provided on the push rod. During the movement of the guide rod, the limiting rod is driven to move and insert into the slot to limit the movement of the push rod.

[0027] In some embodiments, one side of the mounting plate is fixedly connected to shaft three, one end of which passes through the strip plate and is rotatably connected thereto, and a screw rod is also provided on the strip plate, one end of which passes through the strip plate and contacts and abuts against shaft three.

[0028] The present invention has at least the following beneficial effects:

[0029] The palm fixing component is used to fix the palm of the patient's arm, and then the curved support plate is used to limit the position of the patient's arm, thereby assisting the patient to maintain the stability of the arm, thereby preventing the dialysis catheter from bending and the needle from falling off, thereby ensuring the smoothness of blood input and output;

[0030] At the same time, during the dialysis process, the patient can move his fingers to press the two force plates alternately, thereby driving the arc-shaped support plate to swing through the linkage component, and then driving the patient's arm to move slightly as a whole, thereby promoting local blood circulation, reducing discomfort and alleviating anxiety.

[0031] At the same time, when the patient continues to press the force plate, continuous pressure can be generated on the pressure sensor. When the patient does not press the force plate for a period of time, the pressure sensor is not under force for a long time, which will trigger the alarm to prevent the patient from falling asleep, so that the patient can stay awake at all times.

[0032] At the same time, as the patient continues to press the force plate, the air pressure in the hollow cylinder will continue to increase. When the patient presses the force plate too quickly and too frequently, the patient's arm movement will increase, leading to adverse effects. Therefore, when the air pressure in the hollow cylinder is too high, the limit rod will be pushed into the slot to limit the movement of the push rod, thereby limiting the patient's pressing of the force plate, so that the patient's arm movement is within a good range. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0034] Figure 2 For the present invention Figure 1 Another structural diagram;

[0035] Figure 3 For the present invention Figure 2 Schematic diagram of the local cross-section structure;

[0036] Figure 4 For the present invention Figure 3 Schematic diagram of the local cross-section structure;

[0037] Figure 5 For the present invention Figure 4 Schematic diagram of the local cross-section structure;

[0038] Figure 6 For the present invention Figure 5 Schematic diagram of the local cross-section structure;

[0039] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of the middle A area;

[0040] Figure 8 This is a structural schematic diagram of Example 2 of the present invention.

[0041] In the figure: 1-bed; 11-fixed plate; 2-support frame; 3-axis one; 4-palm fixing assembly; 5-arc-shaped support plate; 12-rectangular support plate; 13-grip body; 14-elastic member; 15-elastic strap; 6-force plate; 7-linkage assembly; 21-rectangular block; 22-T-shaped groove; 23-hollow tube; 24-slide rod; 25-strip plate; 26-mounting plate; 27-deflection plate; 28-axis two; 29-push rod; 31-rectangular plate; 32-slide groove; 3 3-injection barrel one; 34-piston one; 35-injection barrel two; 36-piston two; 37-elastic rod; 38-elastic band; 39-screw; 41-hollow cylinder; 42-piston three; 43-guide rod; 44-round plate; 45-pressure spring; 46-pressure sensor; 47-alarm; 48-inflatable component; 49-air venting hole; 51-round cover; 52-inlet pipe; 53-outlet pipe; 54-one-way valve; 55-limit rod; 56-slot; 57-axis three. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Example 1

[0044] See also Figure 1-Figure 7 The present invention provides a technical solution: a hemodialysis arm care device, comprising a bed 1 and a fixing plate 11 arranged on the bed 1, and also comprising:

[0045] The support frame 2 is connected to the bed 1 through the fixing plate 11;

[0046] A shaft 3 is rotatably arranged on the support frame 2, and one end of the shaft 3 is fixedly connected to an arc-shaped support plate 5 for supporting the arm;

[0047] A palm fixing component 4 is arranged at one end of the arc-shaped support plate 5 and is used to fix the patient's palm;

[0048] The palm fixing assembly 4 includes a rectangular support plate 12 arranged at one end of the arc support plate 5, a gripping body 13 is arranged on the rectangular support plate 12, and an elastic member 14 is arranged between the gripping body 13 and the rectangular support plate 12. After the patient's palm passes through the gap between the gripping body 13 and the rectangular support plate 12, the palm is limited;

[0049] An elastic band 15 is provided on the rectangular support plate 12 for fixing the patient's wrist;

[0050] Two force-bearing plates 6 are symmetrically arranged on the holding body 13;

[0051] The linkage assembly 7 is arranged on the support frame 2, and the force-bearing plate 6 is connected to the shaft 1 3 through the linkage assembly 7. After the two force-bearing plates 6 are pressed alternately, the linkage assembly 7 is used to drive the shaft 1 3 to rotate, so that the arc-shaped support plate 5 and the patient's arm swing;

[0052] When used specifically: the palm of the patient's arm is fixed by the palm fixing component 4, and then the patient's arm is limited by the arc-shaped support plate 5, so as to assist the patient to maintain the stability of the arm, thereby preventing the dialysis catheter from bending and the needle from falling off, thereby ensuring the smoothness of blood input and output;

[0053] At the same time, during the dialysis process, the patient can move his fingers to press the two force plates 6 alternately, thereby driving the arc-shaped support plate 5 to swing through the linkage component 7, and then driving the patient's arm to move slightly as a whole, thereby promoting local blood circulation, reducing discomfort, and relieving anxiety.

[0054] At the same time, when the patient continues to press the force plate 6, continuous pressure can be generated on the pressure sensor 46. When the patient does not press the force plate 6 for a period of time, the pressure sensor 46 is not under force for a long time, and the alarm 47 will be triggered to prevent the patient from falling asleep, so that the patient can stay awake at all times.

[0055] At the same time, as the patient continues to press the force plate 6, the air pressure in the hollow cylinder 41 will continue to increase. When the patient presses the force plate 6 too high and too fast, the patient's arm movement will increase, leading to adverse effects. Therefore, when the air pressure in the hollow cylinder 41 is too high, the limit rod 55 will be pushed into the slot 56 to limit the movement of the push rod 29, thereby limiting the patient's pressing of the force plate 6, so that the patient's arm movement is within a good range.

[0056] The support frame 2 includes a rectangular block 21 disposed on one side of the bed 1. A T-shaped slot 22 is provided on the rectangular block 21. The fixing plate 11 is located in the T-shaped slot 22 and is slidably connected to the inner wall thereof to slide and position the rectangular block 21.

[0057] Two hollow tubes 23 are symmetrically fixedly connected to the rectangular block 21, and a slide rod 24 is slidably connected inside the hollow tube 23. A strip plate 25 is fixedly connected between one ends of the two slide rods 24, and a mounting plate 26 is provided on the strip plate 25. The shaft 3 is rotatably connected to the mounting plate 26. By moving the slide rod 24 relative to the rectangular block 21, the height of the arc support plate 5 can be flexibly adjusted to improve the applicability of the device.

[0058] The linkage assembly 7 includes a deflection plate 27 fixedly connected to the shaft 1 3, one end of the deflection plate 27 is fixedly connected to the shaft 2 28, a push rod 29 is slidably connected to the mounting plate 26, a rectangular plate 31 is fixedly connected to the push rod 29, a slide groove 32 is provided on the rectangular plate 31, one end of the shaft 28 is located in the slide groove 32 and is slidably connected to the inner wall thereof, and in the process of moving the push rod 29, the rectangular plate 31 is used to drive the shaft 2 28 to move, thereby driving the deflection plate 27 to deflect, and driving the shaft 1 3 to rotate;

[0059] Two injection barrels 33 are symmetrically fixedly connected to the mounting plate 26, and both injection barrels 33 are filled with liquid. Both ends of the push rod 29 are respectively located in the two injection barrels 33 and fixedly connected with pistons 34. The piston 34 is slidably connected to the inner wall of the injection barrel 33. Liquid is filled into one of the injection barrels 33 to push the push rod 29 to move, and at the same time, the other injection barrel 33 discharges liquid.

[0060] Two injection barrels 2 35 are symmetrically fixedly connected in the holding body 13, and the two injection barrels 2 35 are also filled with liquid. The two injection barrels 2 35 are respectively connected to the two injection barrels 1 33 through conduits. A piston 2 36 is slidably connected in the injection barrel 2 35, and a push rod 37 is fixedly connected to one side of the piston 2 36, and the push rod 37 is fixedly connected to the force plate 6. In the process of pressing one force plate 6, the push rod 37 is driven to move, thereby driving the piston 2 36 to move, and then the liquid is filled into one injection barrel 1 33, so that the push rod 29 and piston 1 34 move, and then drive the push rod 29 to move, and at the same time push the force plate 6 on the other injection barrel 2 35 to extend, so that the two force plates 6 can be pressed alternately, thereby improving the flexibility of the device.

[0061] The elastic member 14 is an elastic band 38, and the holding body 13 is fixedly connected to the rectangular support plate 12 through the elastic band 38, so as to improve the applicability of the device. Specifically, after the patient passes the palm through the two elastic bands 38, the holding body 13 is held and fixed with the elastic band 15;

[0062] The contact surface of the arc-shaped support plate 5 with the human body is designed with flexible materials to improve the comfort of the device;

[0063] The elastic strap 15 is designed with Velcro for easy fixation.

[0064] The contact surface of the grip body 13 with the human body is made of rubber material to improve the comfort of the device.

[0065] A screw rod 39 is provided on the rectangular block 21, one end of the screw rod 39 passes through the rectangular block 21 and is connected thereto by a thread, and one end of the screw rod 39 contacts and abuts against the fixing plate 11. The screw rod 39 is rotated to drive its end to move and squeeze the fixing plate 11, thereby stably fixing the rectangular block 21 on the fixing plate 11;

[0066] A screw rod 39 is also provided on a hollow tube 23 , one end of the screw rod 39 passes through the hollow tube 23 and is threadedly connected thereto, and one end of the screw rod 39 passes through the hollow tube 23 and contacts and abuts against the slide rod 24 . The screw rod 39 is rotated to drive its end to move and squeeze the slide rod 24 , thereby stably fixing the slide rod 24 on the rectangular block 21 .

[0067] A hollow cylinder 41 is fixedly connected to the mounting plate 26, a piston three 42 is slidably connected in the hollow cylinder 41, one end of the piston three 42 is fixedly connected to a guide rod 43, one end of the guide rod 43 passes through the hollow cylinder 41, and a circular plate 44 sleeved on the guide rod 43 is arranged in the hollow cylinder 41, a pressure spring 45 is arranged between the circular plate 44 and the piston three 42, the pressure spring 45 is sleeved on the guide rod 43, and its two ends are respectively in contact with the circular plate 44 and the movable three, a pressure sensor 46 is arranged in the hollow cylinder 41 at one end in contact with the circular plate 44, and an alarm 47 electrically connected to the pressure sensor 46 is arranged on the mounting plate 26, the hollow cylinder 41 is inflated to push the piston three 42 to move, and the pressure spring 45 is compressed to squeeze the pressure sensor 46 through the circular plate 44 to turn off the alarm 47;

[0068] An inflation assembly 48 is provided on the mounting plate 26, and the inflation assembly 48 is connected to the piston 34, and an air leakage hole 49 is opened at one end of the hollow cylinder 41 for continuously exhausting air. In the process of moving the push rod 29, the inflation assembly 48 is used to continuously inflate the hollow cylinder 41.

[0069] The inflation assembly 48 includes a round cover 51 fixedly connected to one side of the injection barrel 33, and the push rod 29 slides through the round cover 51. The round cover 51 is conductively connected with an air inlet pipe 52 and an air outlet pipe 53, and the air outlet pipe 53 is conductively connected to the hollow cylinder 41. A one-way valve 54 is provided in the air inlet pipe 52 and the air outlet pipe 53. The push rod 29 is moved to allow air to be filled into the hollow cylinder 41. The one-way valve 54 in the air inlet pipe 52 only allows air to enter the injection barrel 33, and the one-way valve 54 on the air outlet pipe 53 only allows air to flow out of the injection barrel 33.

[0070] One end of the guide rod 43 is fixedly connected to a limit rod 55, and a slot 56 is provided on the push rod 29. When the guide rod 43 is moved, the limit rod 55 is driven to move and insert into the slot 56 to limit the movement of the push rod 29.

[0071] Specifically, the patient can drive the arc-shaped support plate 5 and the patient's arm to move in a small range by alternately pressing the two force-bearing plates 6 with his fingers, and can also drive the air to be continuously filled into the hollow cylinder 41. At this time, there are roughly three situations: in the first situation, the patient's pressing frequency is low, and the air will be normally filled into the hollow cylinder 41. At the same time, the air leakage hole 49 is small, and the gas escapes slowly. The gas will also push the piston 3 42 to move to compress the pressure spring 45, thereby using the circular plate 44 to squeeze the pressure sensor 46. The pressure sensor 46 is designed with a timing program. Specifically, within a certain time interval, as long as the pressure sensor 46 is compressed once, the alarm 47 will not be triggered. At the same time, the patient's pressing frequency is not high, and the air pressure in the hollow cylinder 41 cannot continue to rise to counter the pressure spring 45 and the continuous pressure relief operation of the air leakage hole 49, thereby not driving the limit rod 55 to be inserted into the card slot 56 on the push rod 29. At this time, the patient's pressing operation will normally drive the arm to move;

[0072] In the second case, the patient presses at a high frequency. At this time, a large amount of gas will be filled into the hollow cylinder 41. Since the air vent hole 49 is small, the gas escapes slowly, which will cause the air pressure in the hollow cylinder 41 to rise quickly, thereby pushing the piston 3 42 to move, while overcoming the obstruction of the pressure spring 45, and then driving the limit rod 55 to insert into the card slot 56 on the push rod 29, thereby limiting the movement of the push rod 29, thereby limiting the patient's pressing operation, and reminding the patient that the pressing speed is too fast;

[0073] In the third case, the patient has not pressed for a period of time. At this time, the patient may be in a sleeping state. Therefore, when the pressure sensor 46 is squeezed for a period of time, it will send a signal to control the alarm 47 to wake up the patient, so as to keep the patient awake and avoid unconscious arm movements during sleep, which will affect the dialysis operation.

[0074] Example 2

[0075] See also Figure 1-Figure 8 , the present invention provides a technical solution: a hemodialysis arm care device, embodiment 2 is optimized on the basis of embodiment 1;

[0076] A shaft three 57 is fixedly connected to one side of the mounting plate 26, one end of which passes through the strip plate 25 and is rotatably connected thereto, and a screw 39 is also provided on the strip plate 25, one end of which passes through the strip plate 25 and is threadedly connected thereto, and one end of the screw 39 contacts and abuts against the shaft three 57, so that the mounting plate 26 can be rotated relative to the strip plate 25, thereby adjusting the initial angle of the arc-shaped support plate 5 and the bed 1 in the device, thereby improving the flexibility of the device body.

[0077] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0078] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hemodialysis arm care device, comprising a bed (1) and a fixing plate (11) arranged on the bed (1), characterized in that: Also included are: A support frame (2) is connected to the hospital bed (1) via a fixing plate (11); A shaft (3) is rotatably mounted on the support frame (2), and one end of the shaft (3) is fixedly connected to an arc-shaped support plate (5) for supporting the arm; A palm fixing component (4) is arranged at one end of the arc-shaped support plate (5) and is used to fix the patient's palm; The palm fixing assembly (4) comprises a rectangular support plate (12) arranged at one end of the arc-shaped support plate (5), a gripping body (13) being arranged on the rectangular support plate (12), an elastic member (14) being arranged between the gripping body (13) and the rectangular support plate (12), and the patient's palm is limited after passing through the gap between the gripping body (13) and the rectangular support plate (12); An elastic band (15) is provided on the rectangular support plate (12) for fixing the patient's wrist; Two force-bearing plates (6) are symmetrically arranged on the holding body (13); A linkage assembly (7) is arranged on the support frame (2), and the force-bearing plate (6) is connected to the shaft one (3) through the linkage assembly (7). After the two force-bearing plates (6) are pressed alternately, the linkage assembly (7) is used to drive the shaft one (3) to rotate, so that the arc-shaped support plate (5) and the patient's arm swing; The support frame (2) comprises a rectangular block (21) arranged on one side of the hospital bed (1), a T-shaped slot (22) is provided on the rectangular block (21), and the fixing plate (11) is located in the T-shaped slot (22) to slide and position the rectangular block (21); Two hollow tubes (23) are symmetrically connected to the rectangular block (21), a slide rod (24) is slidably connected inside the hollow tube (23), a strip plate (25) is fixedly connected between one ends of the two slide rods (24), a mounting plate (26) is arranged on the strip plate (25), and the shaft 1 (3) is rotatably connected to the mounting plate (26); The linkage assembly (7) comprises a deflection plate (27) fixedly connected to the shaft one (3), one end of the deflection plate (27) is fixedly connected to the shaft two (28), a push rod (29) is slidably connected to the mounting plate (26), a rectangular plate (31) is fixedly connected to the push rod (29), a sliding groove (32) is provided on the rectangular plate (31), one end of the shaft two (28) is located in the sliding groove (32), and in the process of moving the push rod (29), the shaft one (3) is driven to rotate; Two injection barrels (33) are symmetrically arranged on the mounting plate (26), and the two injection barrels (33) are filled with liquid. The two ends of the push rod (29) are respectively located in the two injection barrels (33) and are fixedly connected to a piston (34). Liquid is filled into one of the injection barrels (33) to push the push rod (29) to move, while the other injection barrel (33) discharges the liquid. Two injection barrels (35) are symmetrically arranged in the holding body (13). The two injection barrels (35) are also filled with liquid, and the two injection barrels (35) are respectively connected to the two injection barrels (33) through conduits. A piston (36) is slidably connected in the injection barrel (35). A push rod (37) is fixedly connected to one side of the piston (36), and the push rod (37) is fixed to the force-bearing plate (6). When one force-bearing plate (6) is pressed, the push rod (29) is driven to move, and at the same time, the other force-bearing plate (6) is pushed out.

2. The hemodialysis arm care device according to claim 1, characterized in that: The elastic member (14) is an elastic band (38), and the holding body (13) is fixedly connected to the rectangular support plate (12) via the elastic band (38); The contact surface of the arc-shaped support plate (5) with the human body is designed with a flexible material; The elastic band (15) is designed to be fixed with Velcro; The contact surface of the gripping body (13) with the human body is designed with rubber material.

3. The hemodialysis arm care device according to claim 2, characterized in that: The rectangular block (21) is provided with a screw rod (39), one end of which passes through the rectangular block (21) and contacts and abuts against the fixing plate (11); A screw rod (39) is also arranged on one of the hollow tubes (23), and one end of the screw rod (39) passes through the hollow tube (23) and contacts and abuts against the slide rod (24).

4. The hemodialysis arm care device according to claim 3, characterized in that: A hollow cylinder (41) is fixedly connected to the mounting plate (26), a piston three (42) is slidably connected inside the hollow cylinder (41), one end of the piston three (42) is fixedly connected to a guide rod (43), one end of the guide rod (43) passes through the hollow cylinder (41), a circular plate (44) sleeved on the guide rod (43) is arranged inside the hollow cylinder (41), a pressure spring (45) is arranged between the circular plate (44) and the piston three (42), a pressure sensor (46) is arranged inside the hollow cylinder (41) and one end of the pressure sensor (46) is in contact with the circular plate (44), and an alarm (47) electrically connected to the pressure sensor (46) is arranged on the mounting plate (26), the hollow cylinder (41) is inflated to push the piston three (42) to move, and the pressure spring (45) is compressed to squeeze the pressure sensor (46) through the circular plate (44) to turn off the alarm (47); An inflatable component (48) is provided on the mounting plate (26), the inflatable component (48) is connected to the piston (34), and an air leakage hole (49) is provided at one end of the hollow cylinder (41) for continuously exhausting air. During the process of moving the push rod (29), the inflatable component (48) is used to continuously inflate the hollow cylinder (41).

5. The hemodialysis arm care device according to claim 4, characterized in that: The inflation assembly (48) includes a round cover (51) fixedly connected to one side of the injection barrel (33), the round cover (51) is conductively connected to an air inlet pipe (52) and an air outlet pipe (53), and the air outlet pipe (53) is conductively connected to the hollow cylinder (41), and a one-way valve (54) is provided in each of the air inlet pipe (52) and the air outlet pipe (53), and the push rod (29) is moved to allow air to be filled into the hollow cylinder (41).

6. The hemodialysis arm care device according to claim 5, characterized in that: One end of the guide rod (43) is fixedly connected to a limiting rod (55), and a slot (56) is provided on the push rod (29). When the guide rod (43) is moved, the limiting rod (55) is driven to move and be inserted into the slot (56) to limit the movement of the push rod (29).

7. The hemodialysis arm care device according to claim 6, characterized in that: A third shaft (57) is fixedly connected to one side of the mounting plate (26), one end of the third shaft (57) passes through the strip plate (25) and is rotatably connected thereto, and a screw rod (39) is also provided on the strip plate (25), one end of the screw rod (39) passes through the strip plate (25) and contacts and abuts against the third shaft (57).

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