A progressive resistance buckling training device with intelligent hinge brace

Abstract

This utility model discloses a progressive resistance flexion training device with an intelligent hinged brace, relating to the field of rehabilitation medical device technology. It includes: an intelligent drive component; an elastic resistance module is mounted on one side of the front of the intelligent drive component; an adjustment knob is mounted on the front of the elastic resistance module; a connecting shaft is mounted on the output end of the elastic resistance module; a fixed plate is mounted on one end of the connecting shaft; and a first mounting bracket is connected to one side of the fixed plate. In this utility model, the intelligent drive component and the elastic resistance module form an integrated hinge-resistance structure, integrating an adjustable elastic resistance module (such as a multi-stage spring assembly or a magnetorheological damper) into the hinge axis of the brace, achieving synchronous control of resistance and brace angle limit.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation medical device technology, specifically to a progressive resistance flexion training device with an intelligent hinged brace. Background Technology

[0002] This training device is worn on the patient's knee joint to train the joint. After knee injury and surgery, wearing this device can effectively train the knee joint and help the patient's knee joint recover.

[0003] For example, the Chinese patent document CN201921335428.9, filed and published on August 16, 2019, describes a "hinge and knee joint fixation brace" that assists in knee flexion through internal fixation, external fixation, shaft, movable arm, and elastic element, thereby reducing the burden on the knee joint. However, this type of brace can only simply assist in knee flexion and extension and cannot provide personalized resistance training functions, making it difficult to meet the diverse needs of different patients for training intensity and methods at different stages of rehabilitation.

[0004] Meanwhile, some rehabilitation training equipment has resistance training functions. For example, the "Resistant Flexion Training Device" applied for and published by Chinese patent document CN202020345678.2 on March 18, 2020, includes a support frame body, finger sleeves, elastic connecting ropes, etc., and can be used for hand rehabilitation. However, due to the limitations of structural design and application location, it cannot be directly applied to knee joint rehabilitation training, which is completely different from the design concept and application scenario of this utility model for knee joint rehabilitation training.

[0005] In the field of academic research, for example, the bicycle-type lower limb rehabilitation trainer designed in the paper "Human-Machine Modeling and Force Analysis of Lower Limb Rehabilitation Trainer Based on Human-Machine Adaptation" provides a variety of rehabilitation training modes, but it is significantly different from this utility model in key technical points such as synchronous control of resistance and angle limit, intelligent feedback, and personalized parameter adjustment for knee joint rehabilitation training. It cannot effectively solve the technical problems focused on by this utility model.

[0006] Analysis of existing research reveals that current knee rehabilitation training equipment generally suffers from problems such as limited functionality, lack of intelligent control, and insufficient personalized adjustment. Existing rehabilitation braces and trainers often fail to organically integrate resistance training with the brace's angle-limiting function, making it difficult to accurately adjust training parameters based on the patient's real-time rehabilitation status and body feedback. This results in poor rehabilitation training effects and carries the risk of overtraining or undertraining. Furthermore, traditional braces only provide joint protection and angle limitation, lacking active resistance training capabilities and failing to meet the needs of progressive muscle strength recovery. Commercially available resistance training devices are bulky, require fixed locations, and cannot be integrated with braces for early postoperative rehabilitation scenarios. Resistance values ​​and range of motion (ROM) cannot be accurately quantified, relying on manual adjustment based on experience. This invention is based on a deep understanding and analysis of the aforementioned problems in the prior art. It aims to address the shortcomings of existing knee rehabilitation training equipment in terms of functional integration, intelligent control, and personalized rehabilitation training through innovative technical solutions, providing patients with a more efficient, intelligent, and personalized knee rehabilitation training solution. Utility Model Content

[0007] The purpose of this invention is to provide a progressive resistance buckling training device with an intelligent hinge brace to solve the technical problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a progressive resistance buckling training device with an intelligent hinge brace, comprising: an intelligent drive component, an elastic resistance module installed on one side of the front of the intelligent drive component, an adjustment knob installed on the front of the elastic resistance module, a connecting shaft installed at the output end of the elastic resistance module, a fixed plate installed at one end of the connecting shaft, and a first mounting bracket connected to one side of the fixed plate.

[0009] Preferably, a first right-angle bracket is bolted to the inner side of one end of the first mounting bracket, a first connecting plate is bolted to the bottom of the first right-angle bracket, and a first binding component is bolted to the bottom of the first connecting plate.

[0010] Preferably, the first binding component includes a binding shell, a positioning airbag, and a magic strap. The binding shell is fixed to the bottom of the first connecting plate, the positioning airbag is installed inside the binding shell, and the magic strap is installed at the bottom of the binding shell.

[0011] Preferably, a display is mounted on the front of the intelligent drive component, a connecting harness is mounted on the front of the intelligent drive component, and a controller is mounted on one end of the connecting harness.

[0012] Preferably, a second mounting bracket is installed on the inner side of the back of the intelligent drive component, a second right-angle bracket is installed on the back of the second mounting bracket by bolts, and a second connecting plate is installed on the bottom of the second right-angle bracket by bolts.

[0013] Preferably, a second binding component is bolted to the bottom of the second connecting plate, and the second binding component has the same structure as the first binding component but different dimensions.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the intelligent drive component is a hinge drive, which provides power for the movement of the first mounting frame. At the same time, it forms an integrated hinge-resistance structure with the elastic resistance module. The adjustable elastic resistance module (such as a multi-stage spring group or magnetorheological damper) is integrated into the hinge axis of the brace to achieve synchronous control of resistance and brace angle limit. It also has a built-in micro pressure sensor and Bluetooth chip to provide real-time feedback of flexion angle and resistance value to a mobile APP, automatically generating a resistance-angle curve. It can automatically reduce resistance based on the patient's daily pain score (VAS) to avoid excessive load. During drive, a composite drive scheme of magnetorheological fluid damper and micro linear motor is used. The magnetorheological fluid achieves continuous resistance adjustment from 0-200N (response time <15ms), and the linear motor provides auxiliary traction force (maximum stroke 50mm). It integrates a 9-axis IMU sensor (sampling rate 1000Hz) and a micro laser ranging array (accuracy 0.1°) to calculate joint kinematic parameters (angle, angular velocity, torque) in real time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the first mounting frame structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the elastic resistance module structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the first binding component structure of this utility model.

[0020] In the diagram: 1. Intelligent drive component; 2. Display; 3. Connecting harness; 4. Controller; 5. Elastic resistance module; 6. Adjustment knob; 7. Connecting shaft; 8. Fixing plate; 9. First mounting bracket; 10. First right-angle bracket; 11. First connecting plate; 12. First binding component; 13. Binding shell; 14. Positioning airbag; 15. Magic strap; 16. Second mounting bracket; 17. Second right-angle bracket; 18. Second connecting plate; 19. Second binding component. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Please see Figure 1 , Figure 2 and Figure 3 A progressive resistance buckling training device with an intelligent hinge support;

[0025] Includes: intelligent drive component 1 and elastic resistance module 5. The elastic resistance module 5 is installed on one side of the front of the intelligent drive component 1. An adjustment knob 6 is installed on the front of the elastic resistance module 5. A connecting shaft 7 is installed at the output end of the elastic resistance module 5. A fixing plate 8 is installed at one end of the connecting shaft 7. A first mounting bracket 9 is connected to one side of the fixing plate 8. A first right-angle bracket 10 is installed on the inner side of one end of the first mounting bracket 9 by bolts. A display 2 is installed on the front of the intelligent drive component 1. A connecting wire harness 3 is installed on the front of the intelligent drive component 1. A controller 4 is installed at one end of the connecting wire harness 3.

[0026] The intelligent drive component 1 is a hinge drive, providing power for the movement of the first mounting bracket 9. It also forms an integrated hinge-resistance structure with the elastic resistance module 5, integrating the adjustable elastic resistance module 5 (such as a multi-stage spring assembly or magnetorheological damper) into the brace hinge axis. This achieves synchronous control of resistance and brace angle limits. It also incorporates a built-in micro pressure sensor and Bluetooth chip, providing real-time feedback of the flexion angle and resistance values ​​to a mobile app, automatically generating a resistance-angle curve. It can automatically reduce resistance based on the patient's daily pain score (VAS) to avoid overload. A magnetorheological fluid damper is used during drive. The micro linear motor composite drive scheme and magnetorheological fluid enable continuous resistance adjustment from 0-200N (response time <15ms). The linear motor provides auxiliary traction (maximum stroke 50mm), and integrates a 9-axis IMU sensor (sampling rate 1000Hz) and a micro laser ranging array (accuracy 0.1°) to calculate joint kinematic parameters (angle, angular velocity, torque) in real time. Since the intelligent drive component 1 is connected to the controller 4 through the connecting harness 3, the user can control the training device through the controller 4. The display 2 is used to display the values ​​and status generated during the use of the training device.

[0027] Please see Figure 1 and Figure 4 A progressive resistance buckling training device with an intelligent hinge support;

[0028] The bottom of the first right-angle bracket 10 is bolted to a first connecting plate 11. The bottom of the first connecting plate 11 is bolted to a first binding component 12. The first binding component 12 includes a binding shell 13, a positioning airbag 14, and a magic strap 15. The binding shell 13 is fixed to the bottom of the first connecting plate 11. The positioning airbag 14 is installed inside the binding shell 13. The bottom of the binding shell 13 is bolted to a magic strap 15. The back inner side of the intelligent drive component 1 is bolted to a second mounting bracket 16. The back of the second mounting bracket 16 is bolted to a second right-angle bracket 17. The bottom of the second right-angle bracket 17 is bolted to a second connecting plate 18. The bottom of the second connecting plate 18 is bolted to a second binding component 19. The second binding component 19 has the same structure as the first binding component 12 but different dimensions.

[0029] The first mounting bracket 9, the first right-angle bracket 10, and the first connecting plate 11 form a frame for mounting the first binding component 12, which is then fixed in place by bolts. The second binding component 19 is fixed in place by the second mounting bracket 16, the second right-angle bracket 17, and the second connecting plate 18, so that the second binding component 19 corresponds to the first binding component 12. The first mounting bracket 9, the first right-angle bracket 10, and the first connecting plate 11, as well as the second mounting bracket 16, the second right-angle bracket 17, and the second connecting plate 18, are installed by bolts through through slots on each plate and frame, so that the plates and frame can be adjusted, and the length and width of the training device can be adjusted, making the training device more flexible. The binding shell 13 is used to bind the patient's lower leg and thigh respectively. During binding, it is fixed by the magic strap 15, and the internal positioning airbag 14 squeezes and fixes the leg.

[0030] The working principle is as follows: First, the training device is attached to the patient's leg. The binding shell 13 is fixed to the patient's lower leg by the first connecting plate 11, and the binding shell 13 is fixed to the patient's thigh by the second connecting plate 18. The intelligent drive component 1 is controlled by the controller 4 to drive the binding shell 13 fixed to the lower leg to move, thereby realizing the training of the patient's knee joint.

[0031] This invention is of great significance in clinical medicine for knee joint rehabilitation, providing strong support in improving rehabilitation outcomes, ensuring rehabilitation safety, and achieving personalized rehabilitation. It can effectively improve the patient's rehabilitation experience and quality. Specific benefits and advantages are as follows:

[0032] Achieving Precise Rehabilitation Training: This training device can calculate joint kinematic parameters in real time. Thanks to its integrated 9-axis IMU sensor (1000Hz sampling rate) and miniature laser ranging array (0.1° accuracy), it can accurately acquire data such as angles, angular velocities, and torques during knee joint movement. This allows doctors to develop personalized rehabilitation training plans for different patients based on this precise data. Taking patients after knee replacement surgery as an example, in the early stages of rehabilitation, doctors can set lower resistance and a suitable angle range based on the parameters provided by the device to prevent excessive activity from affecting the recovery of the surgical site. As rehabilitation progresses, the training intensity is gradually increased to promote the recovery of knee joint function and effectively improve rehabilitation outcomes.

[0033] Providing a safe and effective rehabilitation process: The training device employs a composite drive scheme of magnetorheological fluid damper and miniature linear motor. The magnetorheological fluid allows for continuous resistance adjustment from 0 to 200N with a response time of <15ms, while the linear motor provides auxiliary traction (maximum stroke 50mm). This characteristic is crucial in rehabilitation training, enabling rapid and precise adjustment of resistance and auxiliary traction based on the patient's real-time movement status and ability. For example, if a patient suddenly feels strain during training, the magnetorheological fluid damper can reduce resistance in a very short time, while the linear motor provides timely auxiliary traction, preventing secondary injury due to excessive force and ensuring the safety of rehabilitation training. For elderly knee joint rehabilitation patients with weak muscle strength, the auxiliary traction of the linear motor can help them complete training movements smoothly, enhancing the training effect.

[0034] Real-time monitoring and feedback: Equipped with a built-in miniature pressure sensor and Bluetooth chip, it can provide real-time feedback of flexion angle and resistance values ​​to a mobile app and generate curves. On one hand, doctors can view the patient's training data anytime via the app, promptly understanding rehabilitation progress and training status. If abnormal angles or poor resistance adaptation are detected during training, the training plan can be adjusted in a timely manner. On the other hand, patients can also intuitively understand their training results, enhancing their confidence in rehabilitation. For example, a patient recovering from a meniscus injury can see their resistance-angle curve gradually improving through the mobile app, enabling them to cooperate more actively with treatment.

[0035] Personalized Rehabilitation Programs: The device automatically reduces resistance based on the patient's daily pain score (VAS) to avoid overload, fully embodying the concept of personalized rehabilitation. Different patients have varying pain tolerance and rehabilitation needs. This device can adjust training intensity based on the patient's real-time pain perception. For example, for elderly patients with knee osteoarthritis who are more sensitive to pain, the device automatically reduces resistance when the VAS score is high. This ensures training continues without causing patient resistance due to pain, improving rehabilitation compliance and facilitating the development of more individualized rehabilitation plans.

[0036] The highly efficient composite drive system employs a combination of a magnetorheological fluid damper and a micro linear motor. The magnetorheological fluid enables continuous resistance adjustment from 0 to 200N with an extremely short response time, while the linear motor provides auxiliary traction. This design allows the device to quickly respond to resistance changes during rehabilitation training, simulating more realistic movement scenarios. For example, when simulating climbing stairs in rehabilitation training, it can rapidly adjust resistance and auxiliary traction according to the needs of different stages of the movement, enhancing the effectiveness of training and helping patients recover their knee joint's daily motor function more quickly.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A smart hinged brace lower gradual resistance flexion training device, characterized in that, Includes: intelligent drive component (1), on one side of the front of the intelligent drive component (1) is an elastic resistance module (5), on the front of the elastic resistance module (5) is an adjustment knob (6), on the output end of the elastic resistance module (5) is a connecting shaft (7), on one end of the connecting shaft (7) is a fixed plate (8), and on one side of the fixed plate (8) is a first mounting bracket (9).

2. A smart hinged brace lower gradual resistance flexion training device according to claim 1, characterized in that: A first right-angle bracket (10) is bolted to the inner side of one end of the first mounting bracket (9), a first connecting plate (11) is bolted to the bottom of the first right-angle bracket (10), and a first binding component (12) is mounted to the bottom of the first connecting plate (11).

3. The smart hinged brace lower progressive resistance flexion training device of claim 2, wherein: The first binding component (12) includes a binding shell (13), a positioning airbag (14) and a magic strap (15). The binding shell (13) is fixed to the bottom of the first connecting plate (11), the positioning airbag (14) is installed on the inside of the binding shell (13), and the magic strap (15) is installed on the bottom of the binding shell (13).

4. The progressive resistance buckling training device with an intelligent hinged brace according to claim 1, characterized in that: The intelligent drive component (1) has a display (2) mounted on its front side, a connecting harness (3) mounted on its front side, and a controller (4) mounted on one end of the connecting harness (3).

5. The progressive resistance buckling training device with an intelligent hinged brace according to claim 4, characterized in that: The intelligent drive component (1) has a second mounting bracket (16) installed on the inner side of its back. The back of the second mounting bracket (16) is fitted with a second right-angle bracket (17) by bolts. The bottom of the second right-angle bracket (17) is fitted with a second connecting plate (18) by bolts.

6. The progressive resistance buckling training device with an intelligent hinged brace according to claim 5, characterized in that: The bottom of the second connecting plate (18) is bolted with a second binding component (19), and the second binding component (19) has the same structure but different size as the first binding component (12).

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