Supporting and nursing device based on kidney disease hemodialysis

By designing a kidney disease hemodialysis device including a concave curved support seat and dynamic massage assembly, the problems of poor support and poor blood circulation in traditional devices are solved, achieving a more comfortable user experience and more effective blood circulation.

CN119792004AInactive Publication Date: 2025-04-11THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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Patent Information

Application Number
CN202510178815.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-04-11
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The support method of traditional hemodialysis devices for kidney disease is simple and difficult to meet the body shape and needs of different patients, resulting in poor blood circulation in the arm muscles, causing discomfort symptoms such as soreness and numbness, which affects the dialysis effect.

Method used

A device is designed including a base plate, a concave curved support seat and a massage assembly. The support seat is hinged with the bottom plate through a rotating rod. The massage assembly includes a shuttle massage pad, a cylindrical massage point and a gas storage tank. The gas supply is controlled through a solenoid valve to achieve dynamic massage and pressure adjustment.

Benefits of technology

The device can provide stable support and a comfortable user experience, significantly improve blood circulation, relieve muscle tension and fatigue, adapt to the needs of patients of different body types, and improve dialysis effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the field of nephropathy treatment and nursing, and provides a kidney disease hemodialysis-based supporting and nursing device, which comprises a bottom plate; the supporting seat is of an inwards-concave arc-shaped plate structure, the bottom face of the supporting seat is fixedly connected with a rotating rod, and the rotating rod is hinged to the bottom plate; the massage assembly comprises a massage cushion, massage points, an air storage tank, a control panel and a battery, the massage cushion is in a shuttle shape, a pressure sensor is integrated in an inner cavity of the massage cushion, the air storage tank, the control panel and the battery are all installed in the supporting seat, a first air conveying pipe is connected between the air storage tank and the massage cushion, and a sealing bin is installed at the bottoms of the massage points in a sealed mode; a second gas conveying pipe is connected between the sealing bin and the gas storage tank; by arranging the bottom plate, the supporting seat and the massage assembly, stable support and comfortable use experience can be provided for a patient, blood circulation can be remarkably improved through dynamic massage and pressure adjustment, and muscular tension and fatigue feeling are relieved.
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Description

Technical Field

[0001] The invention belongs to the field of kidney disease treatment and nursing, in particular to a supporting and nursing device based on kidney disease hemodialysis. Background Art

[0002] During hemodialysis treatment for kidney disease, patients need to maintain a fixed posture for a long time, especially the arms need to be placed in a specific position for a long time. This not only easily leads to poor blood circulation in the arm muscles due to long-term pressure, causing discomfort symptoms such as soreness and numbness, but also may affect the dialysis effect. At the same time, different patients have different body shapes, arm thicknesses, and body position requirements during dialysis, and traditional nursing methods are difficult to meet diverse needs.

[0003] Most of the existing devices are simple plank supports, which are difficult to fit according to the natural curvature of the human arm, resulting in uncomfortable positioning of the patient's arm. Long-term use can easily cause muscle fatigue and pressure injuries, and it is difficult to help patients relieve muscle tension and promote blood circulation.

[0004] To this end, those skilled in the art have proposed a support and care device based on renal hemodialysis to solve the problems raised by the background technology. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a support and nursing device based on renal hemodialysis to solve the problems that most of the devices in the prior art are simple plank supports, which can easily cause muscle fatigue and pressure injuries after long-term use, and are difficult to help patients relieve muscle tension and promote blood circulation.

[0006] A supporting and nursing device based on hemodialysis for kidney disease comprises: a bottom plate;

[0007] A support seat, the support seat is an inwardly concave arc-shaped plate structure, a rotating rod is fixedly connected to the bottom surface of the support seat, and the rotating rod is hinged to the bottom plate;

[0008] A massage component includes a massage cushion, massage points, an air tank, a control panel and a battery. The massage cushion is shuttle-shaped, and a pressure sensor is integrated in the inner cavity of the massage cushion. The air tank, the control panel and the battery are all installed in a support seat, and a first air pipe is connected between the air tank and the massage cushion. A sealing chamber is sealed at the bottom of several massage points, a second air pipe is connected between the sealing chamber and the air tank, and a three-way solenoid valve is installed between the air tank and the first air pipe and the second air pipe.

[0009] Preferably, the two groups of massage pads are arranged in mirror symmetry, and the massage pads present an asymmetric tapered profile along the support seat direction, and the width of the massage pads is 50-60 mm at the proximal end and tapers to 30-35 mm at the distal end.

[0010] Preferably, the massage point has a cylindrical structure, and the end of the massage point is provided with a rounded corner, and a plurality of groups of pleat units are provided around the massage point, the pleat units are concentric rings, and the depth of the pleat units is 2-3mm, the pleat expansion angle is 60°±5°, and the radial telescopic stroke is 15-20mm; an inflation port is installed on the bottom surface of the massage point.

[0011] Preferably, it also includes an installation assembly, which includes a connecting plate, a telescopic plate, a connecting column and a fixing frame;

[0012] Both side walls of the bottom plate are fixedly connected with positioning seats, one side of the connecting plate is penetrated with a telescopic slot, the positioning seat is engaged with the telescopic slot, and the telescopic plate is slidably installed in the telescopic slot, both side walls of the positioning seat are provided with spring slots, the inner surface of the spring slot is connected with a first spring, one end of the first spring is connected to a clamping block, both inner walls of the telescopic slot are penetrated with clamping slots, and the clamping block is engaged with the clamping slots.

[0013] Preferably, a rotating groove is provided in the inner cavity of the positioning seat, the rotating groove is connected to the spring groove, a winding wheel is rotatably connected to the inner surface of the rotating groove, a pull rope is connected between the winding wheel and the two groups of blocks, one end of the winding wheel axle passes through the top surface of the positioning seat, a rotating rod is fixed to one end of the winding wheel axle, a groove is provided on the side wall of the connecting plate, and the rotating rod is located in the groove.

[0014] Preferably, a first fastening knob is provided between the connecting plate and the telescopic plate, the connecting column is fixed to the bottom surface of the telescopic plate, an adjustment sleeve is slidably provided around the connecting column, the adjustment sleeve is fixedly connected to a fixing frame around the connecting column, the fixing frame is a "U"-shaped structure, a turning handle is threadedly connected to the inner wall of the fixing frame, one end of the turning handle is rotatably connected to a fastening disk, and a second fastening knob is installed between the adjusting sleeve and the connecting column.

[0015] Preferably, an adjustment groove is provided on the upper surface of the base plate, a threaded rod is rotatably connected to the inner wall of the adjustment groove, an adjustment seat is threadedly fitted on the circumferential side of the threaded rod, a connecting groove is provided on the bottom surface of the support seat, and an adjustment rod is hinged between the inner wall of the connecting groove and the adjustment seat.

[0016] Preferably, an adjusting button is fixedly mounted on one end of the threaded rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention solves the shortcomings of traditional devices in terms of support comfort, blood circulation promotion and muscle relaxation by providing a base plate, a support seat and a massage component; it can provide patients with stable support and a comfortable use experience, and can also significantly improve blood circulation and relieve muscle tension and fatigue through dynamic massage and pressure regulation; the dot matrix deep massage mode unfolds through concentric annular pleat units around the massage points to form a dynamic raised structure, which performs deep massage on different areas and relieves the problem of blood stasis caused by long-term limb stillness. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the present invention viewed from above;

[0021] Figure 3 It is a schematic diagram of the right three-dimensional structure of the present invention;

[0022] Figure 4 for Figure 2 Schematic diagram of the AA section structure;

[0023] Figure 5 for Figure 4 Schematic diagram of the structure of the middle BB section;

[0024] Figure 6 for Figure 4 Schematic diagram of the CC cross-section structure.

[0025] In the figure:

[0026] 1. Bottom plate; 2. Support seat; 201. Rotating rod; 3. Massage cushion; 4. Massage point; 401. Pleated unit; 402. Inflating port; 5. Sealing chamber; 6. Gas storage tank; 601. Three-way solenoid valve; 7. First gas pipe; 8. Second gas pipe; 9. Control panel; 10. Battery; 11. Adjusting slot; 12. Threaded rod; 13. Adjusting button; 14. Adjusting seat; 15. Connecting slot; 16. Adjusting rod; 17. Positioning seat; 18. Spring slot; 19. First spring; 20. Block; 21. Connecting plate; 22. Slot; 23. Rotating slot; 24. Winding wheel; 2401. Pull rope; 25. Rotating rod; 26. Telescopic plate; 27. First fastening knob; 28. Connecting column; 29. ​​Fixing frame; 30. Fastening disk; 31. Turning handle; 32. Adjusting sleeve; 33. Second fastening knob. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0028] Embodiment 1: As shown in the attached Figure 1 To Attachment Figure 6 As shown: The present invention provides a support and nursing device based on kidney disease hemodialysis, comprising a base plate 1, a support seat 2 and a massage component;

[0029] The support seat 2 is a concave arc plate structure. The support seat 2 adopts a concave arc plate structure (radius of curvature R = 180-220mm), which fits naturally with the patient's limbs. The bottom surface of the support seat 2 is fixedly connected to a rotating rod 201, and the rotating rod 201 is hinged to the bottom plate 1; the angle of the support seat 2 can be adjusted by the adjustment button 13;

[0030] The massage component includes a massage pad 3, massage points 4, an air tank 6, a control panel 9 and a battery 10. The massage pad 3 is in the shape of a shuttle, and a pressure sensor is integrated in the inner cavity of the massage pad 3. The air tank 6, the control panel 9 and the battery 10 are all installed in the support seat 2, and a first air pipe 7 is connected between the air tank 6 and the massage pad 3. A sealing chamber 5 is sealed at the bottom of several massage points 4, a second air pipe 8 is connected between the sealing chamber 5 and the air tank 6, and a three-way solenoid valve 601 is installed between the air tank 6 and the first air pipe 7 and the second air pipe 8.

[0031] The two groups of massage pads 3 are arranged in mirror symmetry, and the massage pads 3 present an asymmetric tapered profile along the direction of the support seat 2, and the width of the massage pads 3 is 50-60 mm at the proximal end and gradually decreases to 30-35 mm at the distal end.

[0032] The massage point 4 is cylindrical in structure, and the end of the massage point 4 is provided with a rounded corner. A plurality of groups of pleat units 401 are provided around the massage point 4. The pleat units 401 are concentric rings, and the depth of the pleat units 401 is 2-3mm. The pleat expansion angle is 60°±5°, and the radial telescopic stroke is 15-20mm. The bottom surface of the massage point 4 is provided with an inflation port 402.

[0033] The battery 10 provides power to the control panel 9 and the gas tank 6, and the control panel 9 controls the opening and closing of the three-way solenoid valve 601. When the three-way solenoid valve 601 is opened, the gas in the gas tank 6 enters the massage pad 3 through the first gas pipe 7, causing it to expand, providing a gentle wrapping feeling and a certain pressure for the arm, and promoting local blood circulation. At the same time, the gas enters the sealed compartment 5 at the bottom of the massage point 4 through the second gas pipe 8, pushing the massage point 4 to bulge upward. The pleated unit 401 on the side of the massage point 4 is unfolded under the action of gas pressure, and the radial telescopic stroke reaches 15-20mm, massaging the arm. Since the pleated unit 401 is 2-3mm deep and the unfolding angle is 60°±5°, this design enables the massage point 4 to better fit the surface of the arm, enhance the massage effect, and relieve muscle tension.

[0034] From the above, it can be seen that the device should be placed at a suitable position beside the hemodialysis bed to ensure the stability of the device.

[0035] The adjusting knob 13 is turned to adjust the angle of the support seat 2 to meet the comfort requirements of the patient's arm placement. The concave arc plate structure of the support seat 2 naturally fits the patient's limbs to provide support for the arm.

[0036] The pressure sensor monitors the contact pressure in real time; after the battery 10 supplies power to the control board 9, the compressed gas supply system in the gas tank 6 is started. The control board 9 can select two working modes by controlling the passage switching of the three-way solenoid valve 601:

[0037] Mode 1: Overall pressing

[0038] The gas storage tank 6 fills the two groups of shuttle-shaped massage pads 3 with 0.03-0.05MPa gas through the first gas supply pipe 7. The massage pads 3 gradually expand along the asymmetric tapered contour of the support seat 2 to form a gradient pressure that matches the anatomical structure of the limb. In this stage, intermittent pressure stimulation similar to manual compression is generated through periodic inflation and deflation (15s inflation → 5s pressure holding → 10s deflation), causing wave-like deformation of the subcutaneous tissue, promoting the increase of venous return speed, and improving the blood circulation during hemodialysis.

[0039] Mode 2: Dot-matrix deep massage

[0040] The three-way solenoid valve 601 switches to the passage of the second gas delivery pipe 8, and the gas enters the inflation port 402 at the bottom of the massage point 4 through the sealing chamber 5. The concentric annular pleated units 401 on the sides of the cylindrical massage point 4 are expanded under the action of air pressure, and the pleat depth is expanded from 2-3mm to 15-20mm radial stroke, forming a dynamic convex structure; by programming and controlling the inflation timing of massage points 4 in different areas, the following composite effects can be produced, which effectively promotes local blood circulation and helps to alleviate the problem of blood stagnation caused by long-term limb stillness during hemodialysis.

[0041] Embodiment 2: It also includes an installation assembly, which includes a connecting plate 21, a telescopic plate 26, a connecting column 28 and a fixing frame 29;

[0042] Both side walls of the bottom plate 1 are fixedly connected with a positioning seat 17, one side of the connecting plate 21 is penetrated with a telescopic groove, the positioning seat 17 is engaged with the telescopic groove, and the telescopic plate 26 is slidably installed in the telescopic groove, both side walls of the positioning seat 17 are provided with a spring groove 18, the inner surface of the spring groove 18 is connected with a first spring 19, one end of the first spring 19 is connected to a clamping block 20, and both inner walls of the telescopic groove are penetrated with a clamping groove 22, and the clamping block 20 is engaged with the clamping groove 22.

[0043] A rotating groove 23 is provided in the inner cavity of the positioning seat 17, and the rotating groove 23 is connected to the spring groove 18. A winding wheel 24 is rotatably connected to the inner surface of the rotating groove 23. A pull rope 2401 is connected between the winding wheel 24 and the two groups of blocks 20. One end of the axle of the winding wheel 24 passes through the top surface of the positioning seat 17, and a rotating rod 25 is fixed to one end of the axle of the winding wheel 24. A groove is provided on the side wall of the connecting plate 21, and the rotating rod 25 is located in the groove.

[0044] A first fastening knob 27 is provided between the connecting plate 21 and the telescopic plate 26, the connecting column 28 is fixed to the bottom surface of the telescopic plate 26, an adjusting sleeve 32 is slidably arranged around the connecting column 28, and the adjusting sleeve 32 is fixedly connected to a fixing frame 29 around the fixing frame 29, the fixing frame 29 is a "U"-shaped structure, a turning handle 31 is threadedly connected to the inner wall of the fixing frame 29, one end of the turning handle 31 is rotatably connected to a fastening disk 30, and a second fastening knob 33 is installed between the adjusting sleeve 32 and the connecting column 28.

[0045] As can be seen from the above, by installing the assembly, the device can be fixed at the side of the bed; the connection plate 21 can be quickly connected with the positioning seat 17, and the positioning seat 17 is inserted into the telescopic slot. During the insertion process, the two groups of card blocks 20 are pressed into the spring slot 18 at the same time. When the position of the spring slot 18 is aligned with the card slot 22, the two groups of first springs 19 are reset at the same time, and the card block 20 is ejected, and the card block 20 is inserted into the card slot 22, so that the positioning seat 17 and the connection plate 21 are quickly connected. The connection structure is stable and not easy to loosen, and it can be installed quickly.

[0046] When the support seat 2 needs to be separated from the connecting plate 21, the rotating rod 25 is rotated, and the rotating rod 25 drives the winding wheel 24 to rotate. The winding wheel 24 simultaneously winds up two sets of pull ropes 2401. The pull ropes 2401 pull the block 20 out of the slot 22, releasing the limit of the block 20, so that the positioning seat 17 can be quickly separated from the connecting plate 21, greatly improving the disassembly efficiency.

[0047] By turning the first fastening knob 27, the telescopic distance of the telescopic plate 26 can be adjusted; by adjusting the second fastening knob 33, the position between the connecting column 28 and the adjusting sleeve 32 can be changed, thereby changing the installation height of the support seat 2; the fixing frame 29 can be fixed to the bedside steel frame, and by turning the turning handle 31, the position of the fastening plate 30 can be adjusted, so that the position of the fixing frame 29 can be quickly locked, and it can be fixed according to beds of different sizes.

[0048] By rotating the adjustment knob 13, the first tightening knob 27, the second tightening knob 33, the rotating rod 25 and the turning handle 31, the device can be installed, the angle adjusted and the height adjusted. The operation is simple and intuitive. Without complicated tools or professional knowledge, the patient's family members or medical staff can easily complete the installation and adjustment of the device.

[0049] The telescopic distance of the telescopic plate 26 can be adjusted by the first fastening knob 27 to meet the requirements of different bed widths or patient arm lengths.

[0050] The position between the connecting column 28 and the adjusting sleeve 32 can be adjusted by the second tightening knob 33, so as to change the height of the supporting seat 2 to meet the comfort requirements of different patients.

[0051] The threaded rod 12 is driven to rotate by the adjusting button 13, and the adjusting seat 14 moves along the adjusting slot 11, and then the angle of the supporting seat 2 is adjusted by the adjusting rod 16 to ensure that the patient's arm is placed in the most comfortable posture.

[0052] This device significantly improves the comfort of patients and the operating efficiency of medical staff through quick installation components and multi-dimensional adjustment functions. The angle adjustment function of the support seat 2 can place the patient's arm in the most comfortable position according to the patient's specific needs, effectively relieving limb fatigue and discomfort. At the same time, by adjusting the height and position of the support seat 2, it can adapt to the needs of patients of different body types, especially for patients who are bedridden for a long time or require special care. This design not only improves the patient's comfort, but also promotes blood circulation, relieves muscle tension, and creates better conditions for the patient's recovery.

[0053] Embodiment 3: An adjustment groove 11 is provided on the upper surface of the base plate 1, a threaded rod 12 is rotatably connected to the inner wall of the adjustment groove 11, an adjustment seat 14 is threadedly fitted on the circumferential side of the threaded rod 12, a connecting groove 15 is provided on the bottom surface of the support seat 2, an adjustment rod 16 is hinged between the inner wall of the connecting groove 15 and the adjustment seat 14.

[0054] An adjusting button 13 is fixedly mounted on one end of the threaded rod 12 .

[0055] As can be seen from the above, by turning the adjusting knob 13, the threaded rod 12 can be driven to rotate, and the threaded rod 12 can drive the adjusting seat 14 to move, and the adjusting seat 14 can drive the adjusting rod 16 to be propped up, thereby realizing the angle adjustment of the support seat 2, so that the patient's arm can be placed at a comfortable angle.

[0056] The stable connection design and multi-point fixing function of the device ensure the safety and stability of the device during use. Through the snap-fit ​​design of the positioning seat 17 and the connecting plate 21, combined with the buffering effect of the spring slot 18 and the first spring 19, the device can be firmly fixed to the side of the bed to avoid loosening due to vibration or external force. The multi-point fixation of the bed steel frame is achieved through the turning handle 31 and the fastening plate 30, which further improves the overall stability of the device, reduces the risk of accidents during the nursing process, and provides patients with a safer and more reliable use environment, significantly improving the quality of medical care and the patient's sense of trust.

[0057] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

[0058] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0062] In the drawings of the embodiments disclosed in the present invention, only the structures involved in the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0063] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A support and nursing device based on hemodialysis for kidney disease, characterized in that: include: Bottom plate (1); A support seat (2), the support seat (2) being an inwardly concave arc-shaped plate structure, a rotating rod (201) being fixedly connected to the bottom surface of the support seat (2), and the rotating rod (201) being hinged to the bottom plate (1); A massage assembly comprises a massage cushion (3), massage points (4), an air tank (6), a control panel (9) and a battery (10); the massage cushion (3) is in a shuttle shape, and a pressure sensor is integrated in the inner cavity of the massage cushion (3); the air tank (6), the control panel (9) and the battery (10) are all installed in a support seat (2); a first air supply pipe (7) is connected between the air tank (6) and the massage cushion (3); a sealing chamber (5) is sealed at the bottom of a plurality of the massage points (4); a second air supply pipe (8) is connected between the sealing chamber (5) and the air tank (6); and a three-way solenoid valve (601) is installed between the air tank (6) and the first air supply pipe (7) and the second air supply pipe (8).

2. A supporting and nursing device based on renal hemodialysis as claimed in claim 1, characterized in that: The two groups of massage pads (3) are arranged in mirror symmetry, and the massage pads (3) present an asymmetric tapered profile along the direction of the support seat (2), and the width of the massage pads (3) is 50-60 mm at the proximal end and gradually tapers to 30-35 mm at the distal end.

3. A supporting and nursing device based on renal hemodialysis as claimed in claim 2, characterized in that: The massage point (4) is in a cylindrical structure, and the end of the massage point (4) is provided with a rounded corner. A plurality of groups of pleat units (401) are provided around the massage point (4). The pleat units (401) are in a concentric ring shape, and the depth of the pleat units (401) is 2-3 mm, the pleat expansion angle is 60°±5°, and the radial telescopic stroke is 15-20 mm. The bottom surface of the massage point (4) is provided with an inflation port (402).

4. A supporting and nursing device based on hemodialysis for kidney disease as claimed in claim 1, characterized in that: It also includes a mounting assembly, which includes a connecting plate (21), a telescopic plate (26), a connecting column (28) and a fixing frame (29); Both side walls of the bottom plate (1) are fixedly connected with a positioning seat (17), one side of the connecting plate (21) is penetrated with a telescopic slot, the positioning seat (17) is engaged with the telescopic slot, and the telescopic plate (26) is slidably installed in the telescopic slot, both side walls of the positioning seat (17) are provided with a spring slot (18), the inner surface of the spring slot (18) is connected with a first spring (19), one end of the first spring (19) is connected to a clamping block (20), both inner walls of the telescopic slot are penetrated with a clamping slot (22), and the clamping block (20) is engaged with the clamping slot (22).

5. A supporting and nursing device based on hemodialysis for kidney disease as claimed in claim 4, characterized in that: The inner cavity of the positioning seat (17) is provided with a rotating groove (23), the rotating groove (23) is connected to the spring groove (18), the inner surface of the rotating groove (23) is rotatably connected to a winding wheel (24), a pull rope (2401) is connected between the winding wheel (24) and the two groups of clamping blocks (20), one end of the winding wheel (24) axle passes through the top surface of the positioning seat (17), one end of the winding wheel (24) axle is fixed with a rotating rod (25), the side wall of the connecting plate (21) is provided with a groove, and the rotating rod (25) is located in the groove.

6. A supporting and nursing device based on hemodialysis for kidney disease as claimed in claim 5, characterized in that: A first tightening knob (27) is arranged between the connecting plate (21) and the telescopic plate (26); the connecting column (28) is fixed to the bottom surface of the telescopic plate (26); an adjusting sleeve (32) is slidably arranged around the connecting column (28); the adjusting sleeve (32) is fixedly connected to a fixing frame (29) around the connecting column (28); the fixing frame (29) is a "U"-shaped structure; a turning handle (31) is threadedly connected to the inner wall of the fixing frame (29); one end of the turning handle (31) is rotatably connected to a tightening disk (30); and a second tightening knob (33) is installed between the adjusting sleeve (32) and the connecting column (28).

7. A supporting and nursing device based on renal hemodialysis as claimed in claim 1, characterized in that: The upper surface of the base plate (1) is provided with an adjustment groove (11), the inner wall of the adjustment groove (11) is rotatably connected to a threaded rod (12), the circumferential side of the threaded rod (12) is threadedly matched with an adjustment seat (14), the bottom surface of the support seat (2) is provided with a connection groove (15), and an adjustment rod (16) is hinged between the inner wall of the connection groove (15) and the adjustment seat (14).

8. A supporting and nursing device based on hemodialysis for kidney disease as claimed in claim 7, characterized in that: An adjusting button (13) is fixedly mounted on one end of the threaded rod (12).