Wearable lower limb rehabilitation training anti-pressure ulcer support device for the elderly

Abstract

The application discloses a wearable anti-pressure-sore support device for lower limb rehabilitation training of the elderly, and relates to the field of lower limb training anti-pressure-sore devices.The device comprises a support frame, an installation groove is formed in the support frame, an installation ring is slidably connected in the installation groove, and a moving mechanism connected with the support frame is movably connected to the installation ring.The wearable anti-pressure-sore support device for lower limb rehabilitation training of the elderly can lift the lower limbs of a patient through a lower limb fixing and lifting mechanism, thereby avoiding long-time local pressure.The device is equipped with a pressing roller which can roll and elastically press the lower limbs.The pressing roller is elastically attached to the support frame through a telescopic rod and a spring, and can automatically adjust the pressing force according to the surface shape of the lower limbs, thereby avoiding injury caused by excessive pressing force.Under the synergistic action of the moving mechanism and the transmission mechanism, the pressing roller can press the lower limbs at multiple angles and in all directions, thereby promoting blood circulation, improving local nutrition supply, and effectively reducing the risk of pressure sores.

Description

Technical Field

[0001] This invention relates to lower limb training and pressure ulcer prevention support technology, specifically to wearable lower limb rehabilitation training and pressure ulcer prevention support for the elderly. Background Technology

[0002] In the field of health care for the elderly, lower limb rehabilitation training is a crucial aspect. As people age, their physical functions gradually decline, with weakened lower limb muscle strength, reduced joint flexibility, and increased circulatory problems. This makes the rehabilitation process after lower limb injuries or illnesses often lengthy and difficult. To help the elderly better perform lower limb rehabilitation training and improve rehabilitation outcomes, various rehabilitation training devices have emerged.

[0003] Currently, wearable lower limb rehabilitation training devices are widely used in lower limb rehabilitation for the elderly. These devices typically have advantages such as portability and the ability to train anytime, anywhere, allowing the elderly to conveniently carry out rehabilitation activities in their daily lives. However, in actual use, these devices also have some problems that cannot be ignored.

[0004] Because the skin of the elderly is more fragile and sensory nerve function is somewhat diminished, the use of wearable lower limb rehabilitation training devices can easily lead to skin damage and pressure sores due to prolonged pressure on the lower limbs from the device and friction that may occur during training. Pressure sores not only cause significant pain and increase the risk of infection for the elderly, but can also affect the normal progress of rehabilitation training, prolong the rehabilitation period, and in severe cases, even lead to serious complications such as systemic infections, posing a serious threat to the health of the elderly. Furthermore, existing wearable lower limb rehabilitation training devices have relatively limited functions, mainly focusing on exercising lower limb muscles and joints through mechanical movements, with limited effectiveness in promoting lower limb blood circulation and relieving muscle fatigue. Good blood circulation is crucial for the repair and regeneration of lower limb tissues; poor blood circulation can lead to insufficient local nutrient supply, affecting the rehabilitation effect. In addition, the lower limb muscles of the elderly are prone to fatigue after rehabilitation training; if they are not relaxed and soothed in time, it may affect the effectiveness of the next training session and even lead to muscle damage.

[0005] While there are some massage devices for the lower limbs on the market, most of these devices are independent of rehabilitation training equipment and cannot effectively synergize with wearable lower limb rehabilitation training devices. After using rehabilitation training equipment, elderly people still need to use massage devices to relax their lower limbs, which not only increases the cost and complexity of use but also hinders the continuity and systematic nature of rehabilitation training.

[0006] Therefore, developing a supportive brace that can work in conjunction with wearable lower limb rehabilitation training equipment to effectively prevent pressure sores, promote lower limb blood circulation, and relieve muscle fatigue is of great practical significance and has an urgent market demand. Summary of the Invention

[0007] The purpose of this invention is to provide a wearable support brace for lower limb rehabilitation training in the elderly to prevent pressure sores, thereby solving the problem that existing lower limb rehabilitation training methods cannot effectively prevent pressure sores and promote blood circulation in the lower limbs, resulting in poor rehabilitation training effects.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a wearable lower limb rehabilitation training support for elderly people to prevent pressure sores, comprising a support frame, an installation groove on the support frame, an installation ring slidably connected in the installation groove, a moving mechanism connected to the support frame and driven by the installation ring, the moving mechanism driving the installation ring to move, a transmission ring rotatably connected in the installation ring, a transmission mechanism connected to the installation ring and driven by the transmission mechanism driving the transmission ring to rotate, two mounting blocks fixedly connected in the transmission ring, a first telescopic drive member fixedly connected on the mounting blocks, a transmission block fixedly connected to the output end of the first telescopic drive member, and multiple pressing rollers rotatably connected in the transmission blocks;

[0009] The support frame is fixedly connected to a support block, and the support frame is provided with a lower limb fixing and lifting mechanism, which is used to lift the lower limb.

[0010] Furthermore, the fixed lifting mechanism includes two transmission grooves opened on the support frame, a lifting block is slidably connected in the transmission groove, a second telescopic drive member is fixedly connected to the top of the lifting block and fixedly connected to the support frame, a third telescopic drive member is fixedly connected to one side of the lifting block, and a clamping arc-shaped block is fixedly connected to the output end of the third telescopic drive member.

[0011] Furthermore, a rubber buffer pad is fixedly connected to one side of the clamping arc-shaped block.

[0012] Furthermore, the moving mechanism includes a first rotation drive member fixedly connected to the support frame, the output end of the first rotation drive member being fixedly connected to a threaded rod rotatably connected to the support frame, the outer surface of the threaded rod being threadedly connected to the mounting ring, and a guide rod fixedly connected to the support frame being slidably connected to the support frame.

[0013] Furthermore, the transmission mechanism includes a second rotation drive component fixedly connected to one side of the mounting ring, the output end of the second rotation drive component is fixedly connected to a transmission shaft, a transmission gear is fixedly sleeved on the outer surface of the transmission shaft, and a transmission gear ring fixedly connected to the transmission ring is meshed on the outer surface of the transmission gear.

[0014] Furthermore, the transmission block has a functional cavity, and multiple telescopic rods are fixedly connected inside the functional cavity. The output end of the telescopic rod is fixedly connected to a connecting frame, and a spring fixedly sleeved on the outer surface of the telescopic rod and fixedly connected to the connecting frame. The pressing roller is rotatably connected inside the connecting frame.

[0015] Furthermore, multiple massage blocks are fixedly connected to the outer surface of the pressing roller.

[0016] Furthermore, a fixing block is fixedly connected to the support frame, and a fixing hole is provided on the fixing block.

[0017] Compared with the prior art, the wearable lower limb rehabilitation training and pressure ulcer prevention support provided by the present invention has the following beneficial effects:

[0018] The lower limb immobilization and elevation mechanism elevates the patient's lower limbs, preventing prolonged pressure on specific areas. Simultaneously, the equipped pressure roller provides rolling, elastic pressure to the lower limbs. The pressure roller, through a telescopic rod and spring, achieves an elastic fit, automatically adjusting the pressure intensity according to the surface shape of the lower limb to prevent excessive pressure and injury. With the coordinated action of the moving and transmission mechanisms, the pressure roller provides multi-angle, all-around pressure to the lower limbs, promoting blood circulation and improving local nutrition, thereby effectively reducing the risk of pressure ulcers. This preventative mechanism provides patients with a safe and comfortable rehabilitation environment, ensuring the smooth progress of rehabilitation training and improving rehabilitation outcomes and quality of life.

[0019] Simultaneously, after using the wearable rehabilitation device, massaging the legs with this brace further relaxes muscles and relieves training fatigue. The massage blocks on the pressure rollers stimulate acupoints and muscles in the lower limbs, promoting the recovery of neuromuscular function and enhancing muscle strength and joint flexibility. At the same time, comprehensive pressure movements help improve lymphatic circulation and venous return in the lower limbs, reducing edema and creating favorable physiological conditions for lower limb functional recovery. This synergistic effect fully leverages the advantages of both rehabilitation methods, promoting lower limb rehabilitation from different aspects, accelerating the recovery process of lower limb function, improving the overall effectiveness of rehabilitation treatment, and enabling patients to return to normal life more quickly. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a first perspective view of the external structure of the present invention;

[0022] Figure 2 This is a second perspective view of the external structure of the present invention;

[0023] Figure 3 This is a third perspective view of the external structure of the present invention;

[0024] Figure 4 This is a perspective view of the internal structure of the transmission block of the present invention;

[0025] Figure 5 For the present invention Figure 2 A magnified view of A in the middle.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Support frame; 2. Mounting groove; 3. Mounting ring; 4. Transmission ring; 5. Mounting block; 6. First telescopic drive component; 7. Transmission block; 8. Pressing roller; 9. Support block; 11. Transmission groove; 12. Lifting block; 13. Second telescopic drive component; 14. Third telescopic drive component; 15. Clamping arc block; 16. Rubber buffer pad; 21. First rotation drive component; 22. Threaded rod; 23. Guide rod; 31. Second rotation drive component; 32. Transmission shaft; 33. Transmission gear; 34. Transmission gear ring; 41. Functional cavity; 42. Telescopic rod; 43. Connecting frame; 44. Spring; 45. Massage block. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example

[0030] Please see Figures 1 to 5This invention provides a wearable lower limb rehabilitation training support for elderly people to prevent pressure sores, including a support frame 1, an installation groove 2 on the support frame 1, an installation ring 3 slidably connected in the installation groove 2, a moving mechanism connected to the support frame 1 and driven by the installation ring 3 to move the installation ring 3, a transmission ring 4 rotatably connected in the installation ring 3, a transmission mechanism connected to the installation ring 3 and driven by the transmission mechanism to rotate the transmission ring 4, two installation blocks 5 fixedly connected in the transmission ring 4, a first telescopic drive 6 fixedly connected in the installation blocks 5, the first telescopic drive 6 being an electric telescopic rod controlled by a PLC programming program to control the telescopic length of the electric telescopic drive 6, a transmission block 7 fixedly connected to the output end of the first telescopic drive 6, and multiple pressing rollers 8 rotatably connected in the transmission block 7;

[0031] A support block 9 is fixedly connected inside the support frame 1. A lower limb fixing and lifting mechanism is provided inside the support frame 1, which is used to lift the lower limbs.

[0032] The fixed lifting mechanism includes two transmission grooves 11 on the support frame 1. A lifting block 12 is slidably connected in the transmission groove 11. A second telescopic drive component 13, which is fixedly connected to the support frame 1, is fixedly connected to the top of the lifting block 12. The second telescopic drive component 13 is an electric telescopic rod, which is controlled by a PLC programming program to control the telescopic length of the electric telescopic drive component. A third telescopic drive component 14, which is also an electric telescopic rod, is fixedly connected to one side of the lifting block 12. The third telescopic drive component 14 is also an electric telescopic rod, which is controlled by a PLC programming program to control the telescopic length of the electric telescopic drive component. A clamping arc-shaped block 15 is fixedly connected to the output end of the third telescopic drive component 14.

[0033] A rubber buffer pad 16 is fixedly connected to one side of the clamping arc block 15.

[0034] The moving mechanism includes a first rotation drive component 21 fixedly connected to the support frame 1. The first rotation drive component 21 is a servo motor, which is controlled by a PLC programming program. The servo motor can be controlled to rotate forward and backward and rotate at different angles. The output end of the first rotation drive component 21 is fixedly connected to a threaded rod 22 that is rotatably connected to the support frame 1. The outer surface of the threaded rod 22 is threadedly connected to the mounting ring 3. A guide rod 23 fixedly connected to the support frame 1 is slidably connected to the support frame 1. The first rotation drive component 21 drives the threaded rod 22 to rotate, and the threaded rod 22 drives the mounting ring 3 to move.

[0035] The transmission mechanism includes a second rotation drive 31 fixedly connected to one side of the mounting ring 3. The second rotation drive 31 is a servo motor, which is controlled by a PLC programming program. The servo motor can be controlled to rotate forward and backward and rotate at different angles. A transmission shaft 32 is fixedly connected to the output end of the second rotation drive 31. A transmission gear 33 is fixedly sleeved on the outer surface of the transmission shaft 32. A transmission gear ring 34 fixedly connected to the transmission ring 4 is meshed on the outer surface of the transmission gear 33. The second rotation drive 31 drives the transmission shaft 32 to rotate, and the transmission shaft 32 drives the transmission gear ring 34 and the transmission ring 4 to rotate through the transmission gear 33.

[0036] The transmission block 7 has a functional cavity 41, and multiple telescopic rods 42 are fixedly connected inside the functional cavity 41. A connecting frame 43 is fixedly connected to the output end of the telescopic rod 42. A spring 44 fixedly connected to the connecting frame 43 is fixedly sleeved on the outer surface of the telescopic rod 42. The pressing roller 8 is rotatably connected inside the connecting frame 43.

[0037] Multiple massage blocks 45 are fixedly connected to the outer surface of the pressure roller 8.

[0038] A fixing block is fixedly connected to the support frame 1. The fixing block has fixing holes. The support frame 1 is fixed by fixing bolts and fixing holes on the fixing block.

[0039] First, the support frame 1 is fixed to the patient's bed. When both legs require rehabilitation, two sets of support braces are selected. The patient then removes the wearable rehabilitation equipment and lies on the bed. The patient's lower limbs are placed inside the support frame 1, and the patient's ankles are placed on the support block 9 on the support frame 1. The third telescopic drive 14 then drives the clamping arc block 15 to clamp and fix the patient's lower limbs. The second telescopic drive 13 then drives the lifting block 12, the third telescopic drive 14, and the clamping arc block 15 to move upward, thereby lifting the patient's lower limbs. The first telescopic drive 6 then drives the transmission block 7 to move. The transmission block 7 drives the pressing roller 8 to adhere to the surface of the patient's lower limbs. At this time, the telescopic rod 42 and spring 44 inside the transmission block 7 are compressed, causing the pressing roller 8 on the connecting frame 43 to elastically adhere to the surface of the patient's lower limbs. The moving mechanism then drives the mounting ring 3 to move. The mounting ring 3 drives the transmission ring 4, mounting block 5, the first telescopic drive 6, and the transmission block 7 to move, causing multiple pressing rollers to adhere to the surface of the patient's lower limbs. The massage blocks 45 on the pressure roller 8 apply rolling elastic pressure to the patient's lower limbs, promoting blood circulation. Then, the first telescopic drive 6 moves the transmission block 7, causing the pressure roller 8 to move away from the patient's lower limbs. The transmission mechanism then drives the transmission ring 4 to rotate, which in turn drives the transmission block 7 to rotate, causing the transmission block 7 and the pressure roller 8 to rotate at a certain angle. This brings the pressure roller 8 back into contact with the patient's lower limb surface. The pressure roller 8 then moves again, pressing the patient's lower limbs. This process is repeated, providing comprehensive pressure to the patient's lower limbs and effectively promoting blood circulation. This effectively prevents the risk of pressure sores after using the wearable rehabilitation training device. Furthermore, the use of support braces after using the wearable rehabilitation device also massages the patient's legs, promoting blood circulation. The synergistic effect of the wearable training device and the support braces further enhances the rehabilitation effect on the patient's lower limbs.

[0040] Working principle:

[0041] I. Fixing of Support Protective Gear

[0042] By passing fixing bolts through the fixing holes in the fixing blocks on the support frame 1, the support frame 1 is securely fixed to the patient's bed. If both legs of the patient need rehabilitation, two sets of support braces should be selected and fixed separately.

[0043] II. Fixation and Elevation of the Lower Limbs

[0044] Lower limb placement: After the patient removes the wearable rehabilitation device, lie flat on the bed, place the lower limbs into the support frame 1, and place the ankles on the support blocks 9 inside the support frame 1 to ensure accurate lower limb positioning.

[0045] Clamping and Fixation: The third telescopic drive component 14 is activated, and its output end drives the clamping arc-shaped block 15 to move towards the patient's lower limb until the rubber buffer pad 16 is in close contact with the lower limb, achieving stable clamping and fixation of the lower limb. The rubber buffer pad 16 can increase the friction with the lower limb while avoiding discomfort caused by direct contact.

[0046] Lower limb elevation: The second telescopic drive 13 is activated, lifting the lifting block 12 upward. Since the lifting block 12 is connected to the third telescopic drive 14 and the clamping arc block 15, it drives the entire lower limb elevation structure to move upward, thereby lifting the patient's lower limb and preparing for subsequent rehabilitation operations.

[0047] III. Elastic pressure on the lower limbs

[0048] Pressing roller 8 fits: The first telescopic drive 6 is activated, and its output end drives the transmission block 7 to move, thereby causing the pressing roller 8 inside the transmission block 7 to gradually fit against the patient's lower limb surface. During this process, the telescopic rod 42 and spring 44 inside the transmission block 7 are compressed under pressure, producing elastic deformation, so that the pressing roller 8 on the connecting frame 43 can elastically fit against the lower limb surface, avoiding damage caused by excessive pressing force.

[0049] Rolling pressure: The moving mechanism starts working, and the first rotating drive component 21 starts, rotating forward and backward according to the preset PLC programming program and controlling the rotation angle. Its output end drives the threaded rod 22 to rotate. Since the threaded rod 22 is threadedly connected to the mounting ring 3, and the mounting ring 3 can only slide along the guide rod 23 under the limiting action of the guide rod 23, the rotation of the threaded rod 22 drives the mounting ring 3 to move within the mounting groove 2. When the mounting ring 3 moves, it drives the transmission ring 4, the mounting block 5, the first telescopic drive component 6, and the transmission block 7 to move together, so that the massage blocks 45 on the multiple pressing rollers 8 perform rolling elastic pressure on the patient's lower limbs. This pressing method can simulate manual massage and promote blood circulation in the patient's lower limbs.

[0050] Angle Adjustment and Re-pressing: After one rolling press, the first telescopic drive 6 moves the transmission block 7, separating the pressure roller 8 from the patient's lower limb. Then, the transmission mechanism activates, and the second rotation drive 31 rotates forward and backward according to a preset PLC programming program, controlling the rotation angle. Its output drives the transmission shaft 32 to rotate, and the transmission gear 33 on the transmission shaft 32 rotates accordingly, further driving the meshing transmission gear ring 34 and transmission ring 4 to rotate. The rotation of the transmission ring 4 drives the transmission block 7 to rotate, causing the transmission block 7 and the pressure roller 8 to rotate at a certain angle. After the angle adjustment is completed, the pressure roller 8 is brought back into contact with the patient's lower limb surface, and the moving mechanism moves the pressure roller 8 to perform a new round of pressing on the patient's lower limb. This repeated operation achieves comprehensive pressing of the patient's lower limbs.

[0051] IV. Effects of Collaborative Rehabilitation

[0052] This support brace not only effectively prevents pressure sores on the lower limbs after patients use wearable rehabilitation training equipment, but also promotes blood circulation in the lower limbs through its massage function. The wearable training device and the support brace work synergistically to provide rehabilitation support for the patient's lower limbs from different aspects, further improving the rehabilitation effect and helping patients recover lower limb function more quickly.

[0053] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wearable lower limb rehabilitation training support for the elderly to prevent pressure sores, characterized in that, The system includes a support frame (1), on which an installation groove (2) is provided. An installation ring (3) is slidably connected in the installation groove (2). A moving mechanism connected to the support frame (1) is driven to the installation ring (3). The moving mechanism is used to drive the installation ring (3) to move. A transmission ring (4) is rotatably connected in the installation ring (3). A transmission mechanism connected to the installation ring (3) is rotatably connected to the outer surface of the transmission ring (4). The transmission mechanism is used to drive the transmission ring (4) to rotate. Two installation blocks (5) are fixedly connected in the transmission ring (4). A first telescopic drive member (6) is fixedly connected to the installation block (5). A transmission block (7) is fixedly connected to the output end of the first telescopic drive member (6). Multiple pressing rollers (8) are rotatably connected in the transmission block (7). The support frame (1) is fixedly connected to the support block (9), and the support frame (1) is provided with a lower limb fixing and lifting mechanism, which is used to lift the lower limb.

2. The wearable lower limb rehabilitation training and pressure ulcer prevention support brace for the elderly according to claim 1, characterized in that, The fixed lifting mechanism includes two transmission grooves (11) opened on the support frame (1). A lifting block (12) is slidably connected in the transmission groove (11). A second telescopic drive member (13) is fixedly connected to the top of the lifting block (12) and fixedly connected to the support frame (1). A third telescopic drive member (14) is fixedly connected to one side of the lifting block (12). A clamping arc block (15) is fixedly connected to the output end of the third telescopic drive member (14).

3. The wearable lower limb rehabilitation training and pressure ulcer prevention support brace for the elderly according to claim 2, characterized in that, A rubber buffer pad (16) is fixedly connected to one side of the clamping arc block (15).

4. The wearable lower limb rehabilitation training and pressure ulcer prevention support brace for the elderly according to claim 1, characterized in that, The moving mechanism includes a first rotating drive member (21) fixedly connected to the support frame (1), and a threaded rod (22) fixedly connected to the output end of the first rotating drive member (21) and rotatably connected to the support frame (1). The outer surface of the threaded rod (22) is threadedly connected to the mounting ring (3), and a guide rod (23) fixedly connected to the support frame (1) is slidably connected to the support frame (1).

5. The wearable lower limb rehabilitation training and pressure ulcer prevention support brace for the elderly according to claim 1, characterized in that, The transmission mechanism includes a second rotation drive (31) fixedly connected to one side of the mounting ring (3). The output end of the second rotation drive (31) is fixedly connected to a transmission shaft (32). A transmission gear (33) is fixedly sleeved on the outer surface of the transmission shaft (32). A transmission gear ring (34) fixedly connected to the transmission ring (4) is meshed on the outer surface of the transmission gear (33).

6. The wearable lower limb rehabilitation training and pressure ulcer prevention support brace for the elderly according to claim 1, characterized in that, The transmission block (7) has a functional cavity (41) and a plurality of telescopic rods (42) are fixedly connected in the functional cavity (41). The output end of the telescopic rod (42) is fixedly connected to a connecting frame (43). The outer surface of the telescopic rod (42) is fixedly sleeved with a spring (44) that is fixedly connected to the connecting frame (43). The pressing roller (8) is rotatably connected in the connecting frame (43).

7. The wearable lower limb rehabilitation training and pressure ulcer prevention support brace for the elderly according to claim 6, characterized in that, Multiple massage blocks (45) are fixedly connected to the outer surface of the pressing roller (8).

8. The wearable lower limb rehabilitation training and pressure ulcer prevention support brace for the elderly according to claim 1, characterized in that, A fixing block is fixedly connected to the support frame (1), and a fixing hole is provided on the fixing block.

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