Walker device for reducing wear of the knee joint

Abstract

The application discloses a walking aid for reducing knee joint wear and belongs to the field of knee joint auxiliary devices. The walking aid comprises an upper fixing ring, a lower fixing ring, a first supporting structure arranged between the upper fixing ring and the lower fixing ring, the first supporting structure is arranged on a side corresponding to the inner side of the knee joint, the first supporting structure comprises two supporting rods, a spring structure is arranged between the two supporting rods, and the spring structure provides opposite opening forces for relatively separating the two supporting rods; a second supporting structure is arranged on the other side of the upper fixing ring and the lower fixing ring relative to the first supporting structure, and the walking aid structure is provided at the bending position corresponding to the joint of the first supporting structure and / or the second supporting structure. When the knee joint changes from the flexion position to the extension position, the walking aid structure accumulates potential energy, and the accumulated potential energy helps the knee joint to change from the extension position to the flexion position. Through the combination of the walking aid structure and the elastic decompression structure, the knee joint rehabilitation can be effectively assisted, the wear of the knee joint in the rehabilitation process is reduced, and the difficulty of the knee joint flexion of the patient is reduced.

Description

Technical Field

[0001] This invention belongs to the field of knee joint treatment device technology, specifically a walking aid device that reduces knee joint wear and tear. Background Technology

[0002] Currently available technology includes knee assistive devices, but these devices are designed to help patients complete knee flexion movements. However, they do not reduce wear and tear on the knee joint during exercise or while standing. Therefore, for some specific patients, assistive walking and decompression of the knee joint are equally important.

[0003] In addition, existing knee joint decompression devices are mostly used to protect the patient's knee joint and prevent excessive wear and tear, while knee joint walking aids are more often used to assist normal people in completing flexion movements when a lot of activity is required, so as to reduce the patient's fatigue.

[0004] For patients who need decompression after surgery and want to get out of bed and start knee flexion activities as soon as possible, neither simple decompression devices nor walking aids can effectively solve their problems.

[0005] To address the aforementioned technical problems, a walking aid device that reduces knee joint wear and tear is provided. Summary of the Invention

[0006] To address the aforementioned problems, this application discloses a walking aid device that reduces knee joint wear. It comprises an adjustable upper fixation ring located on the lower thigh and an adjustable lower fixation ring located on the upper calf. A first support structure is positioned between the upper and lower fixation rings, corresponding to the medial aspect of the knee joint. This first support structure is an elastic pressure-reducing structure, comprising two support rods with a spring structure between them. The spring structure provides the two support rods with opposing forces that are relatively separated. A second support structure is positioned between the upper and lower fixation rings on the opposite side of the first support structure. An assistive walking structure for knee flexion is positioned between the first and / or second support structures. Because knee joint wear primarily occurs on the medial aspect of the knee joint, the first support structure with pressure-reducing effect positioned on the medial aspect of the knee joint can significantly prevent knee joint wear and effectively protect the knee joint. Furthermore, the assistive walking structure for knee flexion positioned between the first and / or second support structures provides stable assistance to the patient, reducing the difficulty of movement.

[0007] The specific technical solution is as follows: a walking aid that reduces knee joint wear, comprising an upper fixing ring, a lower fixing ring, a first support structure and a second support structure.

[0008] The upper fixation ring is located in the area between the patient's lower thigh and knee, and is an adjustable ring.

[0009] The lower fixation ring is set in the area between the patient's upper lower leg and knee, and is an adjustable ring.

[0010] The first support structure is located between the upper and lower fixing rings and on one side of the corresponding inner side of the knee joint. The first support structure includes two support rods and a spring structure is provided between the two support rods. The spring structure provides opposing spreading forces to the two support rods as they separate relative to each other.

[0011] The second support structure is located on the other side between the upper and lower fixed rings, relative to the first support structure.

[0012] An assistive structure for knee flexion is provided at the bending position corresponding to the joint of the first support structure and / or the second support structure. When the knee joint changes from the flexed position to the extended position, the assistive structure accumulates potential energy, and the accumulated potential energy assists the knee joint in changing from the extended position to the flexed position.

[0013] By combining the walking aid structure with the elastic decompression support, the dual functions of walking aid and elastic decompression are integrated. This achieves the dual benefits of reducing knee joint wear and tear while assisting patients during knee flexion movements, reducing the difficulty of movement and promoting patient recovery. Furthermore, the two support structures ensure the connection between the two fixation rings and maintain structural stability.

[0014] Furthermore, the distance between the upper and lower fixation rings is 12cm-15cm; this allows the upper fixation ring to be positioned above the patella on the lower thigh, and the lower fixation ring to be fixed below the patella on the lower leg. This positioning ensures that the upper and lower fixation rings are effectively fixed in place, preventing unpredictable positional changes and avoiding elasticity shifts due to repositioning, thus facilitating recovery.

[0015] Furthermore, the two support rods of the first support structure are joined together to form a telescopic rod. The telescopic rod has a damping force during its extension and retraction, and a spring structure is fitted on the outside of the telescopic rod. This arrangement provides a better shock absorption effect when providing elastic support.

[0016] Furthermore, the interlocking support rods are divided into outer support rods and inner support rods. An adjusting threaded section is provided on the outer support rod, and an adjusting ring with a threaded hole is provided on the outer side of the adjusting threaded section, which is always in contact with the spring. The spring is sleeved on the outer side of the inner support rod. The adjusting ring rotates along the adjusting threaded section, and by rotating to different positions of the adjusting threaded section, the extension and contraction of the spring can be adjusted, thereby adjusting the support force. This ensures that the support force can be adjusted according to the degree of wear during the patient's recovery process.

[0017] Furthermore, the length of the adjustable thread section can be set to 1-3cm, which can meet the needs of adjusting the elastic support force.

[0018] Furthermore, both the upper and lower fixing rings are designed with a soft open-loop structure, and the size can be adjusted by using Velcro. Adjusting the size using Velcro is very simple and convenient.

[0019] Furthermore, fixing posts extend from both sides of the upper and lower fixing rings, and the first or second support structure on the corresponding side of the fixing post is rotatably connected. In a more specific embodiment, to avoid interference from the soft fixing rings with the supporting force during the support process, rigid plates are provided on both sides of the upper and lower fixing rings, with fixing posts extending from the rigid plates. This method effectively supports the force.

[0020] Furthermore, an assistive structure is provided on the first support structure, and the assistive structure is mounted on the outer support rod. This arrangement ensures the effective mounting of the assistive structure and the spring structure that provides elastic pressure relief support, avoiding related interference during installation. Alternatively, the spring structure that provides elastic pressure relief is mounted on the first support structure, and the assistive structure is mounted on the second support structure. A more preferred embodiment is that both the assistive structure and the spring structure are mounted on the first and second support structures, and the elastic support force of the spring structure in the first support structure is greater than that in the second support structure. This arrangement ensures effective pressure relief on the medial side of the knee joint and maintains the balance of the assistive force during walking.

[0021] Furthermore, the walking aid structure includes a first rotating disk and a second rotating disk, which are rotatably connected by a pivot. The combined rotating disks form a cavity, within which a spiral spring is installed. The spiral spring accumulates potential energy as the knee joint changes from a flexed to an extended position, thus assisting the knee joint in this transition. Alternatively, the first rotating disk and the second rotating disk are connected by a pivot, with a torsion spring installed at the pivot to accumulate potential energy.

[0022] Technical effect

[0023] By integrating the assistive structure that plays a role in walking with the structure that plays a role in elastic pressure relief into the first support structure and / or the second support structure between the two fixation rings, the two functions are effectively integrated, which can play a good role after the patient's knee joint is injured.

[0024] By setting the two support rods of the first support structure to be connected in a sleeve manner, it is constructed as a telescopic rod with a damping effect. In conjunction with the outer spring structure, it ensures that it has an effective shock absorption and buffering effect while playing an elastic support role.

[0025] By setting an adjusting threaded section and an adjusting ring with a threaded hole on the outer side, the elastic support force can be effectively adjusted. Adjustments can be made according to the patient's recovery status and the severity of wear, and the adjustment is simple and convenient.

[0026] By setting the upper and lower fixing rings as soft open-ring structures and attaching fixing posts to the fixing rings, and then placing the fixing posts on a rigid plate on the fixing rings, the stability of the first and second support structures in fulfilling their supporting functions can be ensured while maintaining the flexibility of the upper and lower fixing rings. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention in which the first support structure and the second support structure are the same but not similar.

[0028] Figure 2 A schematic diagram of the overall structure of an embodiment of the invention, where the first and second support structures are similar.

[0029] Figure 3 A is a cross-sectional view of the walking aid structure corresponding to box A in the overall figure of the present invention, which shows the cross-sectional view of the rotating disk as a whole.

[0030] Figure 3 B is a cross-sectional view of the walking aid structure corresponding to box A in the overall figure of the present invention, showing a cross-sectional view of the longitudinal section of rotating disk one, rotating disk two and spiral spring.

[0031] Figure 4 This is a partial enlarged structural diagram of the part corresponding to box B in the overall figure of the present invention.

[0032] Figure 5 This is a schematic diagram of the elastic pressure-reducing support structure without springs according to the present invention;

[0033] Figure 6 This is a longitudinal sectional view of the embodiment of the springless elastic pressure relief support structure of the present invention, which is a bidirectional elastic damping structure.

[0034] Figure 7 This is a partially enlarged longitudinal cross-sectional view of the base and piston portion of the elastic pressure-reducing support structure of the present invention, which includes a liquid storage cavity.

[0035] Figure 8 This is a partially enlarged longitudinal sectional view of the elastic pressure-reducing support structure of the present invention, including only the base and piston portion;

[0036] Explanation of main figure symbols

[0037] 11. Upper fixing ring; 111. Fixing post; 12. Lower fixing ring; 1301. First support structure; 1302. Second support structure; 1303. Walking aid structure; 1304. Adjusting thread section; 1305. Adjusting ring; 1306. Rigid plate; 1307. Rotating disc one; 1308. Rotating disc two; 1309. Rotating shaft; 1310. Scroll spring.

[0038] 13. Elastic pressure relief support structure; 131. First part; 1311. Piston; 1312. Rod; 13111. Middle part two; 13112. Throttling valve three; 13113. Throttling valve four; 132. Second part; 1321. Base; 13211. Middle part one; 13212. Throttling valve one; 13213. Throttling valve two; 133. Throttling orifice; 134. Through hole; 135. Threaded rod; 136. Nut; 137. Spring structure. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0041] To keep the drawings concise, only the parts relevant to this application are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0042] In this document, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] refer to Figure 1-4 A walking aid that reduces knee joint wear includes an upper fixing ring 11, a lower fixing ring 12, a first support structure 1301, and a second support structure 1302.

[0044] The upper fixation ring 11 is located in the area between the patient's lower thigh and knee. It is a soft, open-loop structure with Velcro for size adjustment. The lower fixation ring 12 is located in the area between the patient's upper calf and knee. It is a soft, open-loop structure with Velcro for size adjustment.

[0045] The first support structure 1301 is disposed between the upper fixing ring 11 and the lower fixing ring 12, and is located on one side corresponding to the inner side of the knee joint. The first support structure 1301 includes two support rods, and a spring structure is disposed between the two support rods. The spring structure provides opposing spreading forces to the two support rods as they separate relative to each other. The second support structure 1302 is disposed on the other side between the upper fixing ring 11 and the lower fixing ring 12, opposite to the first support structure 1301.

[0046] Among them, reference Figure 1 The second support structure 1302 only has support rods that provide support, with a rotating ring at the center of the support rod corresponding to the joint rotation position. To better utilize the support rods, they are configured as interlocking damping telescopic rods. This design ensures decompression of the medial knee joint but not the lateral knee joint, effectively protecting the patient's joints.

[0047] Or, refer to Figure 2 The second support structure 1302 is similar to the first support structure 1301, but the spring structure on the second support structure 1302 provides a smaller spreading force than the first support structure 1301. This allows for pressure relief on both sides while ensuring priority pressure relief on the inner side.

[0048] An assistive knee flexion structure 1303 is provided at the bending position corresponding to the joint of the first support structure 1301 and the second support structure 1302. When the knee joint changes from a flexed position to an extended position, the assistive structure 1303 accumulates potential energy, which assists the knee joint in changing from an extended position to a flexed position. One implementation method is to provide the assistive structure 1303 on both support structures. In specific implementations, the assistive structure 1303 can be provided on either the first support structure 1301 or the second support structure 1302. When the assistive structure 1303 is provided in one manner, a rotational joint is provided on the support structure without the assistive structure 1303 to provide both support and follow-up movement, ensuring the patient's mobility.

[0049] The distance between the two fixing rings is limited. Specifically, the distance between the upper fixing ring 11 and the lower fixing ring 12 is 12cm. This size is only one implementation size, and the distance can also be any distance between 12-15cm. This is to meet the need to set the upper fixing ring 11 on the lower part of the thigh above the patella and fix the lower fixing ring 12 on the lower leg below the patella, so as to ensure the stability of the position after the fixing rings are set.

[0050] Specifically, the first support structure 1301, which plays a role in elastic pressure reduction, is implemented as follows: two support rods of the first support structure 1301 are sleeved together to form a telescopic rod. The telescopic rod has a damping force during its extension and retraction, and a spring structure is sleeved on the outside of the telescopic rod; this arrangement better achieves the shock absorption effect during elastic support. (Reference) Figure 1 , 4-7; More specifically, the telescopic rod simulates a shock absorber, which is a two-way elastic damping structure. It includes a first part 131, which includes a piston 1311 with a two-way throttle valve. It also includes a second part 132, which has a double-layered cavity: a central working chamber and a surrounding liquid storage chamber. The piston 1311 reciprocates within the working chamber. A base 1321 with a two-way throttle valve is located at the bottom of the working chamber. The working chamber is filled with hydraulic oil, and the liquid storage chamber is filled with compressible gas. When the piston 1311 and the base 1321 move relatively close, the throttle valve on the piston 1311 allows the liquid from the lower part of the working chamber to enter the upper part and exert a damping effect through the throttle valve. Simultaneously, the liquid in the lower part of the working chamber... The liquid enters the reservoir through the throttle valve on the base 1321, and the throttle valve acts as a damping mechanism. The spring structure 137 accumulates potential energy to ensure that the first part 131 and the second part 132 have the force to reset. Conversely, when the piston 1311 moves away from the base 1321, the throttle valve on the piston 1311 allows the liquid in the upper part of the working chamber to enter the lower part and acts as a damping mechanism. At the same time, the liquid in the reservoir flows back to the lower part of the working chamber through the throttle valve on the base 1321 and acts as a damping mechanism. Under the combined action of the accumulated elastic potential energy and the force of body movement, the elastic decompression support structure 13 resets, and the damping effect prevents rapid reset, ensuring the comfort of the patient's activities. The second part 132 has a sealing structure at its first end to ensure that no leakage occurs when the first part 131 moves relative to the second part 132. The first end of the base 1321 faces the working chamber, and the second end of the base 1321 faces the liquid storage chamber. The base 1321 includes a middle part 13211 with a through hole 134. A throttling valve 13212 is provided at the first end of the base 1321, and a throttling valve 2 13213 is provided at the second end of the base 1321. The throttling valve 13212 and the throttling valve 2 13213 are connected. Each of the two flow valves 13213 is provided with a throttling orifice 133. The position of the throttling orifice 133 is not the same as that of the through hole 134. There is a gap between the through hole 134 and the first flow valve 13212 and the second flow valve 13213 to ensure that the throttling liquid enters the through hole 134 through the throttling orifice 133. This method can achieve the purpose of bidirectional throttling. More specifically, the throttling orifices 133 on the first flow valve 13212 and the second flow valve 13213 are arranged in an array on a circle with the same center but different diameters compared with the through hole 134.More specifically, the middle section 13211 has a threaded hole, and a threaded rod 135 with an end cap is installed inside the threaded hole. Throttling valve 13212 and throttling valve 2 13213 have central holes through which the threaded rod 135 passes. A nut 136 is also provided to fix each part in place. Throttling valve 13212, middle section 13211, and throttling valve 2 13213 are sequentially mounted onto the threaded rod 135, and then the nut 136 is screwed onto the threaded rod to lock the position of each part. The edge of the base 1321 is fixedly mounted on the side wall of the working chamber in a sealed contact manner. Throttling valve 13212 and throttling valve 2 13213 can both be configured as double-layered valves, each with a throttling orifice 133. The throttling orifices 133 on both sides of the valves do not overlap. This configuration can increase the throttling effect, and the setting should be adjusted according to the patient's condition during use. The first part 131 includes a rod 1312 and a piston 1311, which reciprocate within the working chamber. The first end of the piston 1311 faces upwards into the working chamber, and the second end faces downwards into the working chamber. A throttling valve three 13112 is provided at the first end of the piston 1311, and a throttling valve four 13113 is provided at the second end of the piston 1311. Throttling orifices 13 are provided on both the throttling valve three 13112 and the throttling valve four 13113. 3. The position of the throttling orifice 133 is not the same as that of the through hole 134, and there is a gap between the through hole 134 and the three throttling valves 13112 and 13113 to ensure that the throttling liquid enters the through hole 134 through the throttling orifice 133; this method can achieve the purpose of bidirectional throttling; more specifically, the throttling orifices 133 on the three throttling valves 13112 and 13113 are arranged in an array on the same circle but with different diameters compared to the through hole 134. More specifically, the second intermediate part 13111 is provided with a threaded hole, and a threaded rod 135 is provided in the threaded hole. The threaded rod 135 is integrally connected with the rod body 1312, and the diameter of the threaded rod 135 is smaller than that of the rod body 1312. The third and fourth throttling valves 13112 and 13113 are provided with a central hole for the threaded rod 135 to pass through. A nut 136 is also provided on the end of the threaded rod 135 facing the lower end of the working chamber to fix the various parts. The third throttling valve 13112, the second intermediate part 13111 and the fourth throttling valve 13113 are sequentially placed on the threaded rod 135, and then the nut 136 is screwed onto the threaded rod to lock the positional relationship of the various parts. More specifically, both the third throttling valve 13112 and the fourth throttling valve 13113 can be configured as double-layered valves, with each layer of valve having a throttling orifice 133. The throttling orifices 133 on both sides of the valve do not overlap. This configuration can increase the throttling effect. The configuration should be adjusted according to the patient's condition during use.

[0051] Furthermore, because different patients require different elastic support forces, the elasticity of the spring structure is set to be adjustable. Specifically, the interlocking support rods of the first support structure 1301 are defined as the outer support rod and the inner support rod, as shown in the reference. Figure 1 and Figure 3 The system includes an adjusting threaded section 1304 on the outer support rod, with an adjusting ring 1305 featuring a threaded hole that is always in contact with the spring on the outer side of the adjusting threaded section 1304. The spring is fitted onto the outer side of the inner support rod. The adjusting ring 1305 rotates along the adjusting threaded section 1304, adjusting the spring's extension and contraction to different positions, thereby adjusting the support force. This ensures that the support force can be adjusted according to the degree of wear during the patient's recovery. The length of the adjusting threaded section 1304 is 2cm, but can be any distance from 1-3cm. This method can meet the support force requirements of different patients. Furthermore, a pressure sensor is installed at the contact point between the adjusting ring 1305 and the spring to measure the elastic force applied to the adjusting ring 1305 by the spring structure. This elastic force is transmitted wirelessly, allowing for targeted adjustments based on the patient's condition and required support force, forming an effective treatment method. More specifically, the adjusting ring 1305 has a protrusion for easy adjustment.

[0052] How to connect the two fixed rings with the two supporting structures is also a problem that needs to be solved. Because the fixed rings are soft rings, if the supporting structures are directly set on the soft rings, the elastic supporting force will be dissipated by the soft rings. Therefore, even if the elastic supporting structures are set, they will not be able to exert a good elastic pressure reduction effect. Therefore, the following settings are made: fixed posts 111 extend from both sides of the upper fixed ring 11 and the lower fixed ring 12, and the first supporting structure 1301 or the second supporting structure 1302 on the corresponding side of the fixed post 111 on the same side are rotatably connected; rigid plates 1306 are set on both sides of the upper fixed ring 11 and the lower fixed ring 12, and fixed posts 111 extend from the rigid plates 1306. The rigid plates 1306 are set on the longitudinal axis of the entire fixed ring. In this way, the purpose of effective support force can be achieved, and the problem of elastic force being dissipated by the soft rings can be avoided.

[0053] The specific implementation of the walking aid structure 1303 is as follows, refer to Figure 3A and 3B; The walking aid structure 1303 includes a first rotating disk 1307 and a second rotating disk 1308, which are rotatably connected by a pivot 1309. The combined rotating disks 1307 and 1308 form a cavity, within which a spiral spring 1310 is installed. The spiral spring 1310 accumulates potential energy when the knee joint changes from a flexed to an extended position, thus assisting the knee joint in changing from an extended to a flexed position. Alternatively, the first rotating disk 1307 and the second rotating disk 1308 can be connected by a pivot 1309, with a torsion spring installed at the pivot 1309 to accumulate potential energy (not shown in the attached diagram), but this does not affect the understanding of the design.

[0054] The above description is merely a specific embodiment of this application. Under the guidance of the above teachings, those skilled in the art can make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above specific description is only to better explain the purpose of this application, and the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A walking aid that reduces knee joint wear, characterized in that, Wear and tear on the knee joint primarily occurs in patients with the inner side of the knee joint, including... The upper fixation ring, located in the area between the patient's lower thigh and knee, is a soft open-loop structure with Velcro for size adjustment; The lower fixation ring is located in the area between the patient's upper lower leg and knee. It is a soft open-loop structure with Velcro for adjusting its size. The distance between the upper and lower fixation rings is 12cm-15cm, ensuring that the upper fixation ring is placed on the lower part of the thigh above the patella, and the lower fixation ring is fixed on the lower leg below the patella; The first support structure is located between the upper and lower fixing rings and is located on one side of the inner side of the corresponding knee joint. The first support structure includes two support rods and a spring structure is provided between the two support rods. The spring structure provides opposing spreading forces to separate the two support rods. The second support structure is located on the other side between the upper and lower fixed rings, relative to the first support structure. The second support structure includes two support rods that provide support. An assistive structure for knee flexion is provided at the bending position corresponding to the joint of the first and second support structures. When the knee joint changes from a flexed position to an extended position, the assistive structure accumulates potential energy, which assists the knee joint in changing from an extended position to a flexed position. Furthermore, both the first and second support structures are equipped with an assistive structure and a spring structure. The elastic support force of the spring structure in the first support structure is greater than that in the second support structure, and the elasticity of the spring structure is adjustable. The first support structure consists of two support rods that are sleeved together to form a telescopic rod. The telescopic rod has a damping force during its extension and retraction. A spring structure is sleeved on the outside of the telescopic rod. The interlocking support rods are divided into an outer support rod and an inner support rod. The spring structure is located between the outer and inner support rods and below the walking aid structure. An adjusting threaded section is provided on the outer support rod. An adjusting ring with a threaded hole is provided on the outside of the adjusting threaded section, which is always in contact with the spring. The spring is sleeved on the outside of the inner support rod. The adjusting ring rotates along the adjusting threaded section. By rotating to different positions of the adjusting threaded section, the degree of extension and retraction of the spring can be adjusted, thereby adjusting the support force. Fixing posts extend from both sides of the upper and lower fixing rings, and the fixing posts on the same side are rotatably connected to the first or second support structure on the corresponding side; rigid plates are provided on both sides of the upper and lower fixing rings, and fixing posts extend from the rigid plates. The walking aid structure and the spring structure that provides elastic pressure relief are integrated into the first and second support structures between the two fixed rings. Priority pressure relief on the inner side of the knee joint is ensured by controlling the elastic support force of the spring structure in the first support structure to be greater than that in the second support structure.

2. The walking aid according to claim 1, characterized in that, The length of the adjustable thread section can be 1-3cm.

3. The walking aid according to claim 1, characterized in that, A pressure sensor is installed at the contact point between the adjusting ring and the spring to measure the elastic force applied to the adjusting ring by the spring structure.

4. The walking aid according to claim 2, characterized in that, The walking aid structure includes a rotating disk one and a rotating disk two, which are rotatably connected by a rotating shaft. After the rotating disk one and rotating disk two are combined, they form a cavity, and a spiral spring is installed inside the cavity; or, the rotating disk one and rotating disk two are connected by a rotating shaft, and a torsion spring is installed at the position of the rotating shaft to accumulate potential energy.

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