Double-leg buckling function rehabilitation device

Abstract

The invention relates to the technical field of rehabilitation training, in particular to a double-leg buckling function rehabilitation device. Comprising a supporting table, a base plate, a backrest plate, guide rails, movable blocks, a limiting frame and the like, the base plate and the backrest plate are installed on the supporting table, the guide rails are symmetrically arranged on the supporting table, the movable blocks are arranged in the guide rails in a sliding mode, and the limiting frame used for containing the feet of a patient is rotatably installed on the movable blocks. The double-shaft motor drives the ejector rod to achieve passive flexion movement, and the device is suitable for an early postoperative stage or a patient with weak muscle force; meanwhile, the patient is supported to autonomously generate force to complete active buckling training, progressive resistance can be applied through a spring system to enhance the training intensity, passive training, active training and resistance training are integrated through the design, the patient does not need to replace equipment in the whole rehabilitation process, the equipment investment and management cost of a medical institution are effectively reduced, and the rehabilitation training efficiency is improved. And continuity and efficiency of rehabilitation training are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rehabilitation training, and in particular to a double-leg flexion function rehabilitation device. BACKGROUND

[0002] With the development of modern medical technology and the improvement of people's quality of life, the rehabilitation treatment of patients with motor dysfunction is increasingly valued. In the field of orthopedics, neurology and sports medicine, the recovery of lower limb function is one of the key links in the rehabilitation process. Among them, the double-leg flexion function, as the basic action of daily activities such as walking, sitting, and going up and down stairs, is particularly important for rehabilitation training. At present, the commonly used double-leg flexion rehabilitation training methods in clinical practice mainly include active training and passive training: passive training is usually suitable for patients in the early postoperative period or with weak physical ability and insufficient muscle strength. The advantage of this mode is that it does not require the patient to actively exert force, thereby reducing pain and psychological burden, and is suitable for use in the early stage of rehabilitation. Active training is suitable for patients in the stable stage and gradually recovering muscle strength. Active training is closer to the physiological movement mode and helps to improve the patient's sense of participation and rehabilitation effect. The ideal rehabilitation process usually follows the progressive principle of "passive first and active later", that is, passive training is mainly used in the early stage of rehabilitation, and gradually transitions to active training as the patient's function improves, and finally achieves autonomous movement.

[0003] However, most existing double-leg flexion rehabilitation devices have single functions and often only support passive training or are only suitable for active training. For example, some lower limb rehabilitation robots focus on passive motion control and lack recognition and response mechanisms for patient active intentions, while some active training devices do not have power-driven functions and cannot provide necessary assistance to weak patients. This fragmented design of functions requires patients to change different devices for training during the entire rehabilitation period: passive training machines are used in the early stage, and active training devices are used in the later stage. This not only increases the equipment procurement and maintenance costs of medical institutions, but also brings learning burdens to patients who need to frequently adapt to new equipment, affecting the continuity and efficiency of rehabilitation. In addition, the parameter settings, motion trajectories and training data of different devices are difficult to manage uniformly, which is not conducive to the development of personalized and dynamically adjusted rehabilitation programs. SUMMARY

[0004] Therefore, the present application provides a double-leg flexion function rehabilitation device that can solve the problem of the lack of a rehabilitation device that can integrate active and passive training modes, support the entire rehabilitation process, and flexibly switch training modes according to the recovery stage of the patient.

[0005] The technical implementation of the present invention is as follows: A rehabilitation device for bilateral leg flexion function includes a support platform, a pad, and a backrest. The support platform is equipped with the pad and the backrest. It also includes a guide rail, a movable block, a limiting frame, a limiting mechanism, a dual-axis motor, a curved plate, a top rod, an adjustment mechanism, a translation block, a docking mechanism, a movable plate, and a first spring. The support platform is symmetrically arranged with guide rails. A movable block is slidably arranged within the guide rails. A limiting frame for placing the patient's feet is rotatably mounted on the movable block. A limiting mechanism for restricting the patient's feet is provided on the limiting frame. A dual-axis motor is mounted on the support platform. A curved plate is mounted on the output shaft of the dual-axis motor. A top rod for lifting the patient's legs is rotatably mounted on the curved plate. An adjustment mechanism is provided on the support platform. A translation block is slidably arranged on the adjustment mechanism. The adjustment mechanism is used to adjust the position of the translation block. A docking mechanism is provided on the limiting frame. A movable plate is connected to the docking mechanism. The docking mechanism is used to dock the movable plate with the limiting frame. A first spring connects the translation block and the movable plate.

[0006] Optionally, the limiting mechanism includes an arc-shaped limiting plate and Velcro. The limiting frame is provided with an arc-shaped limiting plate and Velcro. The arc-shaped limiting plate is used to limit the instep of the patient, and the Velcro is used to limit the ankle of the patient.

[0007] Optionally, the adjustment mechanism includes a connecting plate and a lead screw motor. The connecting plate is mounted on the support platform, the translation block is slidably mounted on the connecting plate, and the lead screw motor is mounted on the connecting plate. The lead screw of the lead screw motor is threadedly connected to the translation block.

[0008] Optionally, the docking mechanism includes a screw, a rotating ring, and a connecting rope. The screw is threaded onto the limit frame, the rotating ring is rotatably mounted on the screw, and the connecting rope is connected to the rotating ring and connected to the movable plate.

[0009] Optionally, it also includes a resistance-increasing mechanism, which includes an electric slide rail, a connecting block, rollers, a contact block, and a second spring. An electric slide rail is provided on the side of the guide rail, a connecting block is connected to the slider of the electric slide rail, rollers are rotatably arranged on the connecting block at intervals, and a contact block is slidably arranged on the movable block. The contact block is used to contact the rollers, and a second spring is connected between the contact block and the movable block.

[0010] Optionally, it also includes a rubber sleeve, with the top rod fitted with a rubber sleeve at intervals, and the outer surface of the rubber sleeve is provided with raised dots at intervals, the raised dots being used to massage the patient.

[0011] Optionally, it also includes a rotating frame and a handle, with the rotating frame rotatably mounted on the back plate and the handles symmetrically mounted on the rotating frame.

[0012] Optionally, it also includes arc-shaped plates, which are symmetrically arranged on the rotating frame and have symmetrical arc-shaped grooves on the back plate. The arc-shaped plates slide within the arc-shaped grooves and are used to limit the rotation range of the rotating frame.

[0013] The present invention has the following advantages: 1. The present invention achieves passive flexion movement by driving the push rod with a dual-axis motor, which is suitable for patients in the early postoperative period or with weak muscle strength; at the same time, it supports patients to complete active flexion training by exerting their own force, and can apply progressive resistance through a spring system to enhance the training intensity. This design integrates passive training, active training and resistance training into one, so that patients do not need to change equipment throughout the rehabilitation process, effectively reducing the equipment investment and management costs of medical institutions, and improving the continuity and efficiency of rehabilitation training.

[0014] 2. This invention is equipped with a progressive resistance system consisting of a first spring and an intermittent resistance system consisting of a roller, a contact block, and a second spring. The progressive resistance can adjust the initial elastic force according to the patient's muscle strength level through a lead screw motor to achieve strength endurance training; the intermittent resistance controls the position of the roller through an electric slide rail to simulate the "resistance-release" rhythm, which helps to improve muscle explosive power and neuromuscular coordination. The two resistance modes can be used together to adapt to the needs of different rehabilitation stages and achieve step-by-step progressive training from low load to high load.

[0015] 3. The rotating frame and handles in this invention provide upper limb support points for patients, helping to maintain sitting balance. They are especially suitable for patients with poor balance or insufficient physical strength, improving the sense of security and comfort during training. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the guide rail, movable block, and limiting frame of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the limiting mechanism of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the dual-axis motor, curved plate, and push rod of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the dual-axis motor, curved plate, and rubber sleeve of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the adjustment mechanism of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the limiting frame, translation block, and movable plate of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the docking mechanism of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the drag-increasing mechanism, rotating frame, and grip of the present invention.

[0025] Figure 10 This is a structural separation diagram of the resistance-increasing mechanism of the present invention.

[0026] Figure 11 This is a structural separation diagram of the rotating frame, grip, and arc-shaped piece of the present invention.

[0027] The meanings of the labels in the attached diagram are as follows: 1: Support platform, 2: Pad, 3: Backrest plate, 4: Guide rail, 5: Movable block, 6: Limit frame, 701: Arc-shaped limit plate, 702: Velcro, 8: Dual-axis motor, 9: Curved plate, 10: Top rod, 1101: Connecting plate, 1102: Screw motor, 12: Translation block, 1301: Screw, 1302: Rotating ring, 1303: Connecting rope, 14: Movable plate, 15: First spring, 16: Electric slide rail, 17: Connecting block, 18: Roller, 19: Contact block, 20: Second spring, 21: Rubber sleeve, 22: Rotating frame, 23: Handle, 24: Arc-shaped piece, 25: Arc-shaped groove. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0029] Example: A rehabilitation device for bilateral leg flexion function, see below. Figures 1-8As shown, the device includes a support platform 1, a pad 2, and a backrest 3. The pad 2 is installed on the top left side of the support platform 1 for the patient to sit on. The backrest 3 is also installed on the top left side of the support platform 1, located to the left of the pad 2, for the patient to lean against. The device also includes guide rails 4, movable blocks 5, limiting frames 6, a limiting mechanism, a dual-axis motor 8, a curved plate 9, a top rod 10, an adjustment mechanism, a translation block 12, a docking mechanism, a movable plate 14, and a first spring 15. Guide rails 4 are symmetrically arranged on the top of the support platform 1. Movable blocks 5 are slidably installed within each of the two guide rails 4. Limiting frames 6 are rotatably installed on the sides of the two movable blocks 5 that are close to each other, and these limiting frames 6 are used to place the patient's feet. The limiting frame 6 is equipped with a limiting mechanism for restricting the patient's feet; a dual-axis motor 8 is installed on the upper left side of the support platform 1; curved plates 9 are installed on the output shafts on both the front and rear sides of the dual-axis motor 8; two push rods 10 for supporting the patient's legs are rotatably installed between the upper sides of the two curved plates 9, and the two push rods 10 are distributed left and right; an adjustment mechanism is provided on the support platform 1, and a translation block 12 is slidably installed on the adjustment mechanism, which is used to adjust the position of the translation block 12; a docking mechanism is provided on the limiting frame 6, and a movable plate 14 is connected to the docking mechanism, which is used to dock the movable plate 14 with the limiting frame 6; a first spring 15 is connected between the left side of the translation block 12 and the right side of the movable plate 14.

[0030] See Figure 3 As shown, the limiting mechanism includes an arc-shaped limiting plate 701 and Velcro 702; an arc-shaped limiting plate 701 is installed on the upper left side of both limiting frames 6, and the arc-shaped limiting plate 701 is used to limit the instep of the patient; Velcro 702 is installed on the lower left side of both limiting frames 6, and the Velcro 702 is used to limit the ankle of the patient.

[0031] See Figure 6 and Figure 7 As shown, the adjustment mechanism includes a connecting plate 1101 and a lead screw motor 1102; the connecting plate 1101 is installed on the upper right side of the support platform 1, and the translation block 12 is slidably disposed on the top of the connecting plate 1101; the lead screw motor 1102 is disposed on the right side of the connecting plate 1101, and the lead screw of the lead screw motor 1102 is threadedly connected to the translation block 12, and the lead screw motor 1102 is used to drive the translation block 12 to move left and right.

[0032] See Figure 7 and Figure 8 As shown, the docking mechanism includes a screw 1301, a rotating ring 1302, and a connecting rope 1303; the lower part of the two limiting frames 6 that are close to each other is threaded with a screw 1301, and the screw 1301 can be unscrewed from the limiting frame 6; the two screws 1301 are rotatably mounted with rotating rings 1302; the rotating rings 1302 are connected to the connecting rope 1303, and the connecting rope 1303 is connected to the left side of the movable plate 14.

[0033] In the initial state, screw 1301 is not installed on limit frame 6; In use, first have the patient sit on the pad 2 and lean against the backrest 3. Then, place the patient's feet into the limiting frame 6, where the curved limiting plate 701 on the limiting frame 6 restricts the instep of the patient's feet. Then, use Velcro 702 to fix the ankle, thereby restricting the patient's ankle and ensuring that the patient's feet are limited within the limiting frame 6. Then, proceed with subsequent operations as needed: If passive leg flexion training is required for the patient, the dual-axis motor 8 is activated. The output shaft of the dual-axis motor 8 drives the curved plate 9 to rotate intermittently in both directions, causing the curved plate 9 to drive the top rod 10 to swing intermittently up and down. When the top rod 10 swings upward, it provides support and drives the patient's legs to bend until the patient's legs are bent to the specified degree. During this period, the patient's feet will drive the limiting frame 6 and the movable block 5 to move to the left by bending. When the top rod 10 swings downward, it no longer supports the patient's legs. At this time, the patient's legs will naturally hang down and tend to straighten under their own weight, thus completing one cycle of passive flexion training. During this period, the patient's feet will drive the limiting frame 6 and the movable block 5 to move to the right and reset by straightening the legs. Then, by the patient's reciprocating flexion and extension movements, passive leg flexion training can be achieved. After the patient completes the passive leg flexion training, the dual-axis motor 8 is turned off. If active leg flexion training is required, the patient voluntarily contracts their lower limb muscles to bend their legs. During this process, the patient's feet will move the limiting frame 6 and movable block 5 to the left as they bend. Once the legs are bent to the designated degree, the patient releases the tension applied to their legs, allowing them to hang naturally and tend to straighten under their own weight, thus completing one cycle of active flexion training. During this cycle, the patient's feet will move the limiting frame 6 and movable block 5 to the right to reset as they straighten. This process is repeated to achieve active leg flexion training. When progressive resistance is needed during active double leg flexion training, screw 1301 is rotated and screwed into limit frame 6. Then, as needed, the lead screw motor 1102 drives the translation block 12 to translate to the right, stretching the first spring 15 and increasing its initial elastic force (the further the translation block 12 moves to the right, the greater the initial elastic force of the first spring 15). This adjusts the initial elastic force of the first spring 15. After adjustment, when the patient flexes both legs, as the movable block 5 moves to the left, it drives screw 1301, rotating ring 1302, connecting rope 1303, and movable... As the movable plate 14 moves to the left, the deformation of the first spring 15 gradually increases, thus gradually increasing the elastic force generated by the first spring 15. As the elastic force generated by the first spring 15 gradually increases, when the movable block 5 drives the screw 1301, rotating ring 1302, connecting rope 1303, and movable plate 14 to move to the left, the resistance formed by the first spring 15 on the leftward movement of the movable plate 14, connecting rope 1303, rotating ring 1302, screw 1301, and movable block 5 also gradually increases. This provides progressive resistance when the patient bends their legs, facilitating the patient to overcome the progressive resistance during active training. The gradually increasing elastic resistance enhances the strength and endurance of the lower limb muscles. When the patient's legs naturally droop and tend to straighten under their own weight, the first spring 15 gradually returns to its initial elastic state. The first spring 15 drives the movable plate 14, connecting rope 1303, rotating ring 1302, screw 1301 and movable block 5 to move to the right to reset. When the patient does not need to provide progressive resistance in active leg flexion training, the translation block 12 is driven to the left by the lead screw motor 1102 to reset, so that the first spring 15 returns to its original state. Then the screw 1301 is twisted out of the limiting frame 6 in reverse. After the patient completes the above-mentioned double leg flexion training, use Velcro 702 to loosen the patient's ankles, then remove the patient's feet from the limiting frame 6, and finally let the patient leave the mat 2.

[0034] See Figure 9 and Figure 10As shown, it also includes a resistance-increasing mechanism, which includes an electric slide rail 16, a connecting block 17, a roller 18, a contact block 19, and a second spring 20. Electric slide rails 16 are provided on both the left and right sides of the guide rail 4, and the number of electric slide rails 16 is four. A connecting block 17 connects the sliders of two electric slide rails 16 on the same guide rail 4. Rollers 18 are rotatably arranged on the connecting block 17 at intervals. Contact blocks 19 are slidably arranged on the lower part of the two movable blocks 5 on opposite sides. The top of the contact block 19 is an isosceles triangular inclined plane, and the contact block 19 is used to contact the roller 18. A second spring 20 connects the bottom of the contact block 19 to the movable block 5.

[0035] By setting up a resistance-increasing mechanism, when the patient needs intermittent resistance during active double leg flexion training, the connecting block 17 and roller 18 can be moved downwards via the electric slide rail 16 to ensure that the contact block 19 can contact the roller 18 during translation. When the movable block 5 translates to the left, it will drive the contact block 19 to translate to the left. When the isosceles triangular inclined plane of the contact block 19 contacts the roller 18, the roller 18 will create resistance to the contact block 19. Then, as the patient increases the pulling force applied to the legs, the roller 18 can squeeze the contact block 19 downwards, compressing the second spring 20. After the contact block 19 passes the roller 18, the second spring 20 returns to its original state, driving the contact block 19 to move upwards to reset. In this way, by setting multiple rollers 18 to create multiple resistance to the contact block 19, Intermittent resistance provides intermittent resistance when patients actively perform leg flexion exercises. This intermittent resistance design simulates the rhythmic stimulation of "resistance-release," allowing patients to experience the process of "overcoming resistance → breaking the threshold → resistance disappearing → brief relaxation" in each flexion movement. This helps to enhance muscle explosiveness and movement coordination. Compared to progressive resistance, intermittent resistance is more suitable for patients in the early rehabilitation stage who have weak muscle strength and insufficient exercise endurance. It can provide sufficient stimulation to promote muscle activation without hindering the completion of the movement due to excessive resistance, thereby improving training compliance and safety. By using intermittent resistance and progressive resistance in combination, multi-modal and stepwise lower limb rehabilitation training can be achieved, comprehensively promoting the recovery of patients' muscle strength, endurance, coordination, and neuromuscular control. When the movable block 5 moves to the right and resets, the movable block 5 will drive the contact block 19 to move to the right and reset. At this time, the multiple rollers 18 set up at this time form multiple resistances against the contact block 19, which can buffer the patient's leg from hanging down naturally, so as to ensure that the patient's leg can hang down smoothly and tend to straighten up, avoiding joint impact or muscle strain caused by hanging down too fast, effectively improving the safety and comfort of training. When the patient does not require intermittent resistance during active leg flexion training, the connecting block 17 and roller 18 are moved upwards and reset via the electric slide rail 16 to ensure that the contact block 19 does not come into contact with the roller 18 during translation.

[0036] See Figure 5 As shown, it also includes rubber sleeves 21; three rubber sleeves 21 are spaced on the top rod 10, and the outer surface of the rubber sleeves 21 is provided with protrusions at intervals. When the top rod 10 provides support to drive the patient's legs to bend, the protrusions on the rubber sleeves 21 can contact the patient's legs, thereby achieving massage of the leg muscles during passive flexion training, thereby promoting local blood circulation and relieving muscle stiffness and fatigue.

[0037] See Figure 9 and Figure 11 As shown, it also includes a rotating frame 22 and a handle 23; the rotating frame 22 is rotatably arranged on the upper side of the back panel 3, and the handle 23 is symmetrically arranged on the upper side of the rotating frame 22. The handle 23 has an anti-slip groove on the outer side to prevent the patient's hand from slipping on the handle 23.

[0038] See Figure 9 and Figure 11 As shown, it also includes an arc-shaped piece 24; the arc-shaped pieces 24 are symmetrically arranged on the lower side of the rotating frame 22; the back plate 3 is symmetrically provided with arc-shaped grooves 25, the arc-shaped pieces 24 slide in the arc-shaped grooves 25, and the arc-shaped pieces 24 are used to limit the rotation range of the rotating frame 22.

[0039] In use, the rotating frame 22 can be pulled clockwise to rotate the arc-shaped plate 24 clockwise, causing the arc-shaped plate 24 to slide along the arc-shaped groove 25 until it is stuck at the bottom of the groove 25, thus limiting the rotation frame 22. Afterwards, when the patient performs flexion training, he / she can hold the handle 23 with both hands to provide additional support and stability, help maintain body balance, and enhance the safety and comfort of training. After the training is completed, the rotating frame 22 can be pushed counterclockwise to reset, causing the arc-shaped plate 24 to reset counterclockwise, allowing it to slide along the arc-shaped groove 25 and be stuck at the top of the groove 25.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A rehabilitation device for bilateral leg flexion function, comprising a support platform (1), a pad (2), and a backrest (3), wherein the pad (2) and the backrest (3) are mounted on the support platform (1), characterized in that, It also includes a guide rail (4), a movable block (5), a limiting frame (6), a limiting mechanism, a dual-axis motor (8), a curved plate (9), a top rod (10), an adjustment mechanism, a translation block (12), a docking mechanism, a movable plate (14), and a first spring (15). The support platform (1) is symmetrically provided with guide rails (4), and a movable block (5) is slidably provided inside the guide rails (4). A limiting frame (6) for placing the patient's foot is rotatably installed on the movable block (5). A limiting mechanism for restricting the patient's foot is provided on the limiting frame (6). A dual-axis motor (8) is installed on the support platform (1). 8) A curved plate (9) is installed on the output shaft of the dual-axis motor (8). A push rod (10) for lifting the patient's legs is rotatably installed on the curved plate (9). An adjustment mechanism is provided on the support platform (1). A translation block (12) is slidably provided on the adjustment mechanism. The adjustment mechanism is used to adjust the position of the translation block (12). A docking mechanism is provided on the limiting frame (6). A movable plate (14) is connected to the docking mechanism. The docking mechanism is used to dock the movable plate (14) with the limiting frame (6). A first spring (15) is connected between the translation block (12) and the movable plate (14).

2. The rehabilitation device for bilateral leg flexion function according to claim 1, characterized in that, The limiting mechanism includes an arc-shaped limiting plate (701) and a Velcro strap (702). The limiting frame (6) is provided with an arc-shaped limiting plate (701) and a Velcro strap (702). The arc-shaped limiting plate (701) is used to limit the instep of the patient, and the Velcro strap (702) is used to limit the ankle of the patient.

3. A rehabilitation device for bilateral leg flexion function according to claim 1, characterized in that, The adjustment mechanism includes a connecting plate (1101) and a lead screw motor (1102). The connecting plate (1101) is installed on the support platform (1), and the translation block (12) is slidably set on the connecting plate (1101). The lead screw motor (1102) is set on the connecting plate (1101), and the lead screw of the lead screw motor (1102) is threadedly connected to the translation block (12).

4. A rehabilitation device for bilateral leg flexion function according to claim 1, characterized in that, The docking mechanism includes a screw (1301), a rotating ring (1302) and a connecting rope (1303). The screw (1301) is threaded on the limiting frame (6), and the rotating ring (1302) is rotatably mounted on the screw (1301). The connecting rope (1303) is connected to the rotating ring (1302), and the connecting rope (1303) is connected to the movable plate (14).

5. A rehabilitation device for bilateral leg flexion function according to claim 1, characterized in that, It also includes a resistance-increasing mechanism, which includes an electric slide rail (16), a connecting block (17), a roller (18), a contact block (19), and a second spring (20). The guide rail (4) is provided with an electric slide rail (16) on its side. The slider of the electric slide rail (16) is connected to a connecting block (17). The connecting block (17) is provided with a roller (18) at intervals. The movable block (5) is provided with a contact block (19) that is used to contact the roller (18). The contact block (19) is connected to the movable block (5) with a second spring (20).

6. A rehabilitation device for bilateral leg flexion function according to claim 1, characterized in that, It also includes a rubber sleeve (21), which is spaced on the top rod (10). The outer surface of the rubber sleeve (21) is provided with raised dots, which are used to massage the patient.

7. A rehabilitation device for bilateral leg flexion function according to claim 1, characterized in that, It also includes a rotating frame (22) and a handle (23). The rotating frame (22) is rotatably mounted on the back plate (3), and the handle (23) is symmetrically mounted on the rotating frame (22).

8. A rehabilitation device for bilateral leg flexion function according to claim 7, characterized in that, It also includes an arc-shaped piece (24), which is symmetrically arranged on the rotating frame (22). An arc-shaped groove (25) is symmetrically opened on the back plate (3). The arc-shaped piece (24) slides in the arc-shaped groove (25). The arc-shaped piece (24) is used to limit the rotation range of the rotating frame (22).

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