Arm pad for hemodialysis nursing
By designing a hemodialysis care arm pad with a motor drive system and sliding roller, the problem of stiff arm muscles during hemodialysis is solved, and massage and angle adjustment of the patient's arms are achieved, improving the comfort and effect of dialysis.
Patent Information
- Application Number
- CN202420505542.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-03-15
AI Technical Summary
During hemodialysis, the patient's arms are placed for a long time, causing muscle stiffness and discomfort, affecting the dialysis effect.
An arm pad for hemodialysis care is designed, using a motor-driven cam and a sector gear system to drive the sliding roller to perform periodic reciprocating movement, massage the arm with air cushion, and adjust the arm tilt angle through the hinge and slide seat.
It effectively avoids stiffness in the arm muscles, improves the patient's comfort, and adjusts the angle of the arm to the maximum extent to which the patient feels comfortable, improving the effect of hemodialysis.
Smart Images

Figure CN222623431U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of arm pads, in particular to an arm pad for hemodialysis care. Background Art
[0002] Hemodialysis (HD) 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 through a dialyzer composed of countless hollow fibers. The blood and the electrolyte solution (dialysate) containing electrolytes at similar concentrations to the body are exchanged inside and outside the hollow fibers through diffusion, ultrafiltration, adsorption and convection principles to remove metabolic waste from the body and maintain electrolyte and acid-base balance. For patients who need hemodialysis, arm pads are usually used to place their arms during treatment.
[0003] At present, most of the arm pads for hemodialysis care are used. Since the hemodialysis process is relatively long, long-term use will cause the patient's arm muscles to become stiff and the body to become cold, making the patient feel uncomfortable and not conducive to the hemodialysis. Therefore, those skilled in the art provide an arm pad for hemodialysis care to solve the problems raised in the above background technology. Utility Model Content
[0004] The utility model aims to solve the shortcomings of the prior art and proposes an arm pad for hemodialysis care. The arm pad for hemodialysis care has the effect of massaging the arm muscles of hemodialysis patients, thereby avoiding stiffness of the arm muscles of patients caused by long-term dialysis, which makes the patients feel uncomfortable. At the same time, the arm pad for hemodialysis care also has the effect of adjusting the inclination angle of the patient's arm.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] An arm pad for hemodialysis care, comprising a base plate, a second hinge fixedly provided on one side wall of the base plate, the second hinge being hingedly connected to a shell, slide grooves are provided at middle positions on both sides of the inner wall of the shell, two limit blocks are slidably provided on the inner walls of the slide grooves on both sides, a plurality of the limit blocks are fixedly connected to a sliding rod, two concave wheels are rotatably provided at the bottom of the shell on both sides, fan gears are fixedly connected to the upper surfaces of the two concave wheels, and the two fan gears cooperate with the sliding rod.
[0007] Through the above technical solution, the rotation of the two concave wheels can drive the sector gear to rotate, and the sliding roller can be moved under the mutual cooperation of the limit block and the sliding rod.
[0008] Furthermore, a motor is fixedly arranged at a middle position of the inner bottom of the housing, a cam is fixedly connected to the output end of the motor, and the cam is meshed and connected with the two cam wheels;
[0009] Through the above technical solution, the transmission cam can be engaged through the cam.
[0010] Furthermore, a first groove is provided on the lower surface of the housing, screw rods are rotatably arranged at both ends of the first groove, and a sliding seat is threadedly sleeved on the outer wall of the screw rod;
[0011] Through the above technical solution, the sliding seat can be driven to move by the rotation of the screw rod.
[0012] Furthermore, a second groove is provided on the upper surface of the bottom plate, a rotating frame is rotatably provided at the bottom of the second groove, and the rotating frame is rotatably connected to the sliding seat;
[0013] Through the above technical solution, the tilt angle of the shell can be adjusted by utilizing the cooperation between the sliding seat and the rotating frame.
[0014] Furthermore, the plurality of limit blocks are arranged in groups of two adjacent to each other, a connecting frame is fixedly provided on the upper end of a group of limit blocks, and a sliding roller is rotatably provided on the inner wall of the connecting frame;
[0015] Through the above technical solution, the movement of the sliding roller can be used to massage the patient's arm muscles.
[0016] Furthermore, an air cushion is fixedly arranged on the inner wall of the shell near the upper end, and the lower surface of the air cushion is tightly fitted with the sliding roller;
[0017] Through the above technical solution, under the action of the air cushion, the patient's arm muscles can be massaged.
[0018] Further, a first hinge is fixedly provided on one side of the shell, the first hinge is hingedly connected to a cover plate, a bayonet is fixedly connected to one side of the cover plate, a buckle is fixedly provided on the other side of the shell, and the buckle cooperates with the bayonet;
[0019] Through the above technical solution, the patient's arm can be fixed by the cooperation between the cover plate, the buckle and the pin.
[0020] Furthermore, a rotating buckle is rotatably provided at one end of the housing near the lower end, and the rotating buckle is fixedly connected to the screw rod;
[0021] Through the above technical solution, the screw rod can be controlled to rotate by rotating the rotating buckle.
[0022] The utility model has the following beneficial effects:
[0023] 1. The utility model proposes an arm pad for hemodialysis care, which utilizes a motor to drive a cam to rotate, and is connected by meshing between the cam and the concave wheel. At the same time, under the cooperation of the sector gear and the sliding rod, the sliding roller can be prompted to perform periodic reciprocating motion in a plane. Under the cooperation of the air cushion, the arm muscles of the hemodialysis patient can be massaged to avoid the patient's arm stiffness and discomfort caused by long hemodialysis time.
[0024] 2. The utility model proposes an arm pad for hemodialysis care. Under the action of the second hinge, by rotating the rotating buckle and utilizing the rotation of the screw rod, the sliding seat can be prompted to slide in the sliding groove. With the cooperation of the rotating frame, the inclination angle of the shell can be adjusted, thereby adjusting to the angle that the dialysis patient's arm feels comfortable to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is an axonometric diagram of an arm pad for hemodialysis care proposed by the utility model;
[0026] Figure 2 This is a front cross-sectional view of an arm pad for hemodialysis care proposed by the utility model;
[0027] Figure 3 A top view of an arm pad for hemodialysis care proposed by the utility model Figure 1 ;
[0028] Figure 4 This is a partial structural schematic diagram of an arm pad for hemodialysis care proposed by the utility model;
[0029] Figure 5 A top view of an arm pad for hemodialysis care proposed by the utility model Figure 2 ;
[0030] Figure 6 for Figure 3 Enlarged view of point A in the middle.
[0031] Legend:
[0032] 1. Shell; 2. Air cushion; 3. First hinge; 4. Cover plate; 5. Pin; 6. Rotating buckle; 7. Slide groove; 8. Connecting frame; 9. Sliding roller; 10. Cam; 11. Concave wheel; 12. Fan gear; 13. First groove; 14. Screw rod; 15. Motor; 16. Sliding seat; 17. Bottom plate; 18. Second hinge; 19. Second groove; 20. Rotating frame; 21. Sliding rod; 22. Limit block; 23. Buckle. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0034] Reference Figure 1-6 The utility model provides an embodiment: an arm pad for hemodialysis care, comprising a bottom plate 17, a second hinge 18 is fixedly provided on one side wall of the bottom plate 17, the second hinge 18 is hingedly connected to the shell 1, a slide groove 7 is provided at the middle position on both sides of the inner wall of the shell 1, two limit blocks 22 are slidably provided on the inner walls of the slide grooves 7 on both sides, and a plurality of limit blocks 22 are fixedly connected to a sliding rod 21 together, and two concave wheels 11 are rotatably provided at the bottom of the shell 1 on both sides, and a sector gear 12 is fixedly connected to the upper surface of the two concave wheels 11, and the two sector gears 12 cooperate with the sliding rod 21, and the rotation of the two concave wheels 11 can drive the sector gear 12 to rotate, and under the mutual cooperation of the limit blocks 22 and the sliding rod 21, the sliding roller 9 can move.
[0035] A motor 15 is fixedly arranged at the middle position of the bottom of the shell 1, and a cam 10 is fixedly connected to the output end of the motor 15. The cam 10 is meshed and connected with the two cam wheels 11, and the transmission cam wheels 11 can be meshed through the cam 10. A first groove 13 is provided on the lower surface of the shell 1, and screw rods 14 are rotatably arranged at both ends inside the first groove 13. A sliding seat 16 is threadedly sleeved on the outer wall of the screw rod 14, and the sliding seat 16 can be driven to move by the rotation of the screw rod 14. A second groove 19 is provided on the upper surface of the bottom plate 17, and a rotating frame 20 is rotatably arranged at the bottom of the second groove 19. The rotating frame 20 is rotatably connected to the sliding seat 16. The sliding seat 16 and the rotating frame 20 cooperate with each other to achieve the function of adjusting the inclination angle of the shell 1. A plurality of limit blocks 22 are adjacent to each other in groups of two, and a connecting frame is fixedly arranged on the upper end of a group of limit blocks 22 8. A sliding roller 9 is rotatably provided on the inner wall of the connecting frame 8. The movement of the sliding roller 9 can achieve the effect of massaging the patient's arm muscles. An air cushion 2 is fixedly provided on the inner wall of the outer shell 1 near the upper end. The lower surface of the air cushion 2 is tightly fitted with the sliding roller 9. Under the action of the air cushion 2, the patient's arm muscles can be massaged. A first hinge 3 is fixedly provided on one side of the outer shell 1. The first hinge 3 is hingedly connected to a cover plate 4. A bayonet 5 is fixedly connected to one side of the cover plate 4. A buckle 23 is fixedly provided on the other side of the outer shell 1. The buckle 23 cooperates with the bayonet 5. The cover plate 4, the buckle 23 and the bayonet 5 cooperate with each other, so that the patient's arm can be fixed. A rotating buckle 6 is rotatably provided on one end of the outer shell 1 near the lower end. The rotating buckle 6 is fixedly connected to the screw rod 14. The screw rod 14 can be controlled to rotate by rotating the rotating buckle 6.
[0036] Working principle: When the utility model is in use, first the patient only needs to place his arm on the bottom of the shell 1, and then rotate the rotating buckle 6 to change the inclination angle of the shell 1, thereby adjusting it to an angle that the patient feels comfortable with, and then the cover plate 4 is tightly fitted with the shell 1, and the motor 15 starts the cam 10 to drive the concave wheels 11 on both sides to rotate, and under the cooperation of the fan gear 12 and the sliding rod 21, the sliding roller 9 can be driven to perform periodic reciprocating motion in the plane, thereby achieving the effect of massaging the patient's arm muscles.
[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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. An arm pad for hemodialysis care, comprising a base plate (17), characterized in that: A second hinge (18) is fixedly provided on one side wall of the bottom plate (17), and the second hinge (18) is hingedly connected to the outer shell (1). Slide grooves (7) are provided at middle positions on both sides of the inner wall of the outer shell (1), and two limit blocks (22) are slidably provided on the inner walls of the slide grooves (7) on both sides. A plurality of limit blocks (22) are fixedly connected to a sliding rod (21) together. Two cam wheels (11) are rotatably provided at both sides of the bottom of the inner shell (1), and the upper surfaces of the two cam wheels (11) are fixedly connected to sector gears (12), and the two sector gears (12) cooperate with the sliding rod (21).
2. The arm pad for hemodialysis care according to claim 1, characterized in that: A motor (15) is fixedly arranged at a middle position on the inner bottom of the housing (1), and a cam (10) is fixedly connected to the output end of the motor (15), and the cam (10) is meshedly connected to two cam wheels (11).
3. The arm pad for hemodialysis care according to claim 1, characterized in that: A first groove (13) is provided on the lower surface of the housing (1), screw rods (14) are rotatably arranged at both ends of the first groove (13), and a sliding seat (16) is threadedly sleeved on the outer wall of the screw rod (14).
4. The hemodialysis nursing arm pad according to claim 1, characterized in that: A second groove (19) is provided on the upper surface of the bottom plate (17), a rotating frame (20) is rotatably arranged at the bottom of the second groove (19), and the rotating frame (20) is rotatably connected to the sliding seat (16).
5. The hemodialysis nursing arm pad according to claim 1, characterized in that: The plurality of limit blocks (22) are arranged in groups of two adjacent to each other, a connecting frame (8) is fixedly provided on the upper end of a group of limit blocks (22), and a sliding roller (9) is rotatably provided on the inner wall of the connecting frame (8).
6. The hemodialysis nursing arm pad according to claim 1, characterized in that: An air cushion (2) is fixedly arranged on the inner wall of the outer shell (1) near the upper end, and the lower surface of the air cushion (2) is tightly fitted to the sliding roller (9).
7. The hemodialysis nursing arm pad according to claim 1, characterized in that: A first hinge (3) is fixedly provided on one side of the housing (1), the first hinge (3) is hingedly connected to a cover plate (4), a bayonet (5) is fixedly connected to one side of the cover plate (4), and a buckle (23) is fixedly provided on the other side of the housing (1), the buckle (23) and the bayonet (5) cooperate with each other.
8. The arm pad for hemodialysis care according to claim 1, characterized in that: A rotating buckle (6) is rotatably provided at a lower end position of one end of the housing (1), and the rotating buckle (6) is fixedly connected to the screw rod (14).