Ankle-foot orthotic motion rehabilitation device for student sports injury rehabilitation

Abstract

The present application belongs to the field of ankle-foot rehabilitation treatment instruments, and provides an ankle-foot orthotic exercise rehabilitation device for student sports injury rehabilitation, which comprises a bottom plate, a supporting leg assembly, an ankle-foot supporting plate, a shell, a binding belt, a driving mechanism and a damping protection assembly. The shell is fixed on the bottom plate, rotating rods are rotatably installed on both sides of the shell, and the ankle-foot supporting plate is fixed on the end of the rotating rods. The damping protection assembly is arranged between the rotating rods and the shell, and provides uniform damping and overload protection for active rehabilitation based on the shear thickening characteristics of non-Newtonian fluid. The present application can realize passive correction and active resistance rehabilitation, has the advantages of uniform speed damping training, overload prevention, and self-adaptive limb support, and solves the technical problems of single mode, poor protection, insufficient adaptability and easy secondary injury of existing student ankle-foot rehabilitation devices. The present application is suitable for the whole cycle of campus student sports injury rehabilitation, has stable structure, convenient operation and excellent rehabilitation effect.

Description

Technical Field

[0001] This invention belongs to the field of ankle and foot rehabilitation therapy devices, and particularly relates to an ankle and foot orthotic exercise rehabilitation device for the rehabilitation of sports injuries in students. Background Technology

[0002] Students frequently engage in extracurricular sports activities, such as basketball, soccer, running, and rope skipping, which can easily lead to ankle sprains, ligament strains, and plantar fasciitis—the most common types of sports injuries among teenagers. Improper rehabilitation after an ankle injury can easily result in sequelae such as joint stiffness, muscle weakness, joint misalignment, and recurrent injuries, severely impacting students' daily activities and sports performance.

[0003] Currently, most traditional ankle and foot rehabilitation orthotic devices on the market are fixed rigid support structures or single passive swing rehabilitation devices, which have many technical defects and cannot meet the specific rehabilitation needs of students: First, the rehabilitation mode is singular, only having passive mechanical correction function, unable to enable students to actively exert force resistance training, making it difficult to exercise the muscle strength around the ankle joint, resulting in a long rehabilitation cycle and limited rehabilitation effect; Second, the protective performance is poor, and students are prone to uneven force exertion and excessive instantaneous force during active rehabilitation training. Existing devices lack damping buffer and overload locking structures, which can easily cause secondary ankle strains and secondary ligament tears, resulting in insufficient safety.

[0004] In response to the shortcomings of existing technologies, such as limited modes, lack of protection, poor adaptability, and susceptibility to secondary injuries, there is an urgent need to design a specialized student ankle and foot sports injury rehabilitation device that combines passive correction, active resistance, and overload protection to meet the fragmented, safe, and refined rehabilitation needs of students on campus. Summary of the Invention

[0005] The purpose of this invention is to provide an ankle and foot orthotic exercise rehabilitation device for the rehabilitation of sports injuries in students, aiming to solve the technical problems of existing ankle and foot rehabilitation devices, such as single rehabilitation mode, lack of active training function, insufficient protective performance, and easy to cause secondary ankle injuries in students.

[0006] This invention is implemented as follows: an ankle and foot orthotic rehabilitation device for student sports injury rehabilitation includes a base plate, a shell fixedly mounted on the base plate, rotating rods symmetrically mounted on both sides of the shell, and ankle and foot support plates fixed to the outer ends of the rotating rods. The ankle and foot support plates are equipped with straps for fixing the feet. The shell has a built-in drive mechanism, which is linked to the rotating rods on both sides through an electromagnetic clutch. The power transmission state can be switched by turning the electromagnetic clutch on and off, realizing the switching between passive mechanical swing rehabilitation and active force rehabilitation by the student. A damping protection component is set between the rotating rods and the shell. Utilizing the shear thickening properties of non-Newtonian fluids, it provides uniform damping resistance for active rehabilitation, and locks quickly during instantaneous overload force to prevent excessive flexion and extension injuries. Two sets of height-adjustable adaptive support leg components are symmetrically arranged on the base plate. The support height can be adjusted according to the student's limb size, and it can adaptively fit the inclination angle of the lower leg to achieve flexible support, improving wearing comfort and rehabilitation stability.

[0007] Further technical solution: The drive mechanism is fixedly assembled inside the housing and consists of a fixed rod, an electric telescopic rod, a swing arm, a swing rod, and an electromagnetic clutch.

[0008] The fixed rod serves as a fixed support base, with the electric telescopic rod rotatably mounted on it. The swing rod is horizontally mounted inside the housing, and the swing arm is vertically fixed to the outer wall of the swing rod. The movable end of the electric telescopic rod is hinged to the swing arm. Electromagnetic clutches are installed at both ends of the swing rod, and are connected to the rotating rods on both sides through these clutches. By controlling the on / off state of the electromagnetic clutches, the operation of the ankle and foot support plate can be controlled independently for one or both sides, adapting to the rehabilitation needs of students with unilateral or bilateral ankle injuries. By adjusting the extension and retraction stroke of the electric telescopic rod, the rotation amplitude of the swing rod can be precisely controlled, thereby adjusting the flexion and extension swing angle of the ankle and foot support plate to achieve injury-adaptive adjustment. At the same time, the housing has a built-in controller with multiple pre-stored rehabilitation modes, allowing for one-button switching between rehabilitation programs with different swing angles and frequencies, achieving automated and precise rehabilitation.

[0009] Further technical solution: The damping protection components are symmetrically arranged on both sides of the shell, corresponding to the position of the rotating rod, and consist of a fixed shell, a shear plate, a lever plate, an inner cylinder, and a non-Newtonian fluid medium;

[0010] The fixed shell is fixed to the side wall of the shell, and the inner cylinder is fixedly sleeved on the outside of the rotating rod and placed inside the fixed shell. Multiple sets of levers are evenly fixed on the outer wall of the inner cylinder, and multiple sets of shearing plates are evenly fixed on the inner wall of the fixed shell. The sealed cavity of the fixed shell and the inner cylinder is filled with non-Newtonian fluid, and the filling rate is controlled at 98%~100%, with no air residue, to ensure the damping response sensitivity.

[0011] In passive rehabilitation mode, the drive mechanism drives the rotating rod to rotate at a constant speed. The non-Newtonian fluid has no shear thickening effect and does not affect the normal swing of the equipment. In active rehabilitation mode, the electromagnetic clutch disconnects the power connection, and the student exerts force to drive the ankle and foot support plate to rotate. The paddle plate rotates with the inner cylinder, cutting the non-Newtonian fluid. Combined with the resistance of the shear plate, it forms a uniform and stable damping resistance, realizing uniform resistance training. When the student exerts too much force or rotates too fast, the non-Newtonian fluid instantly shears and thickens, locking the paddle plate and the inner cylinder to rotate, quickly limiting excessive flexion and extension of the ankle, realizing overload protection, and preventing secondary strain.

[0012] Further technical solution: Two sets of leg support components are symmetrically arranged on the base plate, corresponding to the sides of the ankle and foot support plate, to suspend and support the student's lower leg, avoid pressure and friction on the foot, and ensure rehabilitation effect;

[0013] The leg support assembly includes a lifting adjustment structure and an elastic adaptive support structure. The lifting structure consists of a second fixed cylinder, a lifting column, a screw, a transmission pair, a drive rod, and a dual-head motor. The dual-head motor is fixed inside the housing, and its two output shafts are connected to the drive rod. The drive rod drives the screw inside the second fixed cylinder to rotate through the transmission pair. The screw and the lifting column are threadedly driven to achieve height adjustment between the lifting column and the top calf support plate, accommodating students with different leg lengths. The calf support plate is a U-shaped structure wrapped in sponge and is rotatably mounted on the top of the lifting column, allowing for adaptive fine-tuning of the tilt angle. Elastic support assemblies are provided on both sides, consisting of a first fixed cylinder, a support column, and a compression spring. The compression spring pushes the support column to fit against the bottom ends of the calf support plate, allowing for adaptive elastic expansion and contraction according to the calf tilt angle, dynamically adapting to limb posture, avoiding localized pressure, and improving support comfort and stability.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. Dual-mode rehabilitation switching to meet the full cycle of rehabilitation needs: This invention can freely switch between two rehabilitation modes, passive mechanical correction and active damping resistance training, through the on / off control of an electromagnetic clutch. The passive mode can achieve precise flexion and extension correction during the initial postoperative rest period, avoiding joint stiffness. The active mode can exercise the muscle strength and joint flexibility around the ankle joint, which is suitable for muscle strengthening training in the middle and late stages of rehabilitation. It covers the entire rehabilitation process of students' acute, recovery and strengthening phases of injury, greatly improving the comprehensiveness of rehabilitation.

[0016] 2. Non-Newtonian fluid damping protection to prevent secondary injuries: The innovative non-Newtonian fluid damping protection component provides uniform and stable damping resistance during active training, ensuring uniform ankle movement and resolving training deviations caused by uneven force exertion in students; it can quickly harden and lock in the event of instantaneous overload, limiting excessive flexion and extension of the ankle, structurally preventing secondary injuries such as strains and tears, greatly improving the safety of students' self-rehabilitation. At the same time, there is no damping interference in passive mode, ensuring the smoothness of corrective training.

[0017] 3. Adaptive flexible support with excellent fit and comfort: The electric lifting calf support structure can precisely adjust the support height to suit students of different heights and leg shapes; the calf support plate can adaptively rotate and tilt, and together with the double-sided elastic support components, it dynamically conforms to the calf posture of students when lying down for rehabilitation, without hard pressure or local squeezing and swelling, solving the pain points of poor fit and discomfort of traditional equipment, and greatly improving students' wearing compliance.

[0018] 4. Refined and graded rehabilitation, convenient operation adapted to school scenarios: The device has multiple pre-stored rehabilitation programs, and the swing angle and frequency can be switched with one click according to the severity of the student's injury and rehabilitation progress, without the need for complicated manual adjustments; it can control the rehabilitation of one foot separately, suitable for students with unilateral injuries; the overall structure is simple and highly automated, and students can operate it independently, adapting to fragmented rehabilitation scenarios during school breaks and after school, without the need for full-time professional medical staff, making it highly convenient to use.

[0019] 5. Stable and durable structure with low maintenance cost: The core transmission and damping structure are both mechanical structures with electronic control assistance. There are no easily damaged precision parts, which makes it stable in operation, impact resistant, and easy to clean. It is suitable for high-frequency use scenarios on campus, and the maintenance cost is extremely low. It is highly practical and applicable. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall front view of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall side cross-sectional structure of the present invention.

[0022] Figure 3 In this invention Figure 2 Enlarged diagram of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the overall top-view cross-sectional structure of the present invention.

[0024] Figure 5 In this invention Figure 4 Enlarged diagram of point B in the middle.

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the damping protection component in this invention.

[0026] In the attached diagram: 1. Base plate; 2. Leg assembly; 21. Compression spring; 22. Support column; 23. First fixed cylinder; 24. Drive rod; 25. Lower leg support plate; 26. Second fixed cylinder; 27. Transmission pair; 28. Screw; 29. ​​Lifting column; 210. Dual-head motor; 3. Ankle and foot support plate; 4. Housing; 5. Straps; 6. Drive mechanism; 61. Fixed rod; 62. Electric telescopic rod; 63. Swing arm; 64. Swing rod; 65. Electromagnetic clutch; 7. Damping protection assembly; 71. Fixed shell; 72. Shear plate; 73. Paddle plate; 74. Inner cylinder; 8. Rotating rod. Detailed Implementation

[0027] 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 and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0028] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0029] like Figures 1-6 As shown, this invention provides an ankle and foot orthotic rehabilitation device for student sports injury rehabilitation, comprising a base plate 1 made of hard, non-slip material to ensure the stability of the device. A housing 4 is fixedly installed on the base plate 1. The housing 4 is a sealed protective housing with all transmission and electrical control components inside, achieving dust protection. Rotating holes are symmetrically opened on the left and right sides of the housing 4, and rotating rods 8 are rotatably mounted in the rotating holes. Ankle and foot support plates 3 are fixedly connected to the opposite ends of the two rotating rods 8. The ankle and foot support plates 3 are designed to conform to the contour of the sole and outer side of the ankle, and the curvature is adapted to the physiological structure of the student's foot. Two sets of elastic straps 5 are installed on each ankle and foot support plate 3 for layered fixation of the foot, which is firm and does not compress blood vessels.

[0030] The housing 4 is equipped with a drive mechanism 6. The output end of the drive mechanism 6 is connected to two rotating rods 8. The drive mechanism 6 is used to drive the two rotating rods 8 to swing. The rotating rods 8 can drive the ankle and foot support plate 3 to rotate, so as to carry out rehabilitation treatment for the user's ankle and foot. The output end of the drive mechanism 6 can cut off the power transmission with the rotating rods 8 to release the limitation of the ankle and foot support plate 3, so that the user can actively drive the ankle and foot support plate 3 to rotate with their feet, so as to achieve the purpose of active movement rehabilitation treatment, thereby improving the rehabilitation treatment effect.

[0031] A damping protection component 7 is also provided between the rotating rod 8 and the housing 4. During active rehabilitation therapy, the damping protection component 7 is used to provide damping for the rotating rod 8 and make the rotating rod 8 rotate at a uniform speed to avoid further strain on the ankle caused by uneven force exerted by the user, so as to achieve the purpose of protecting the user's ankle.

[0032] Specifically, when using the device, place it at the foot of the bed, have the user sit on the bed, and then tie the injured foot to the ankle-foot support plate 3 (only one foot can be tied). Then lie flat on the bed and start the drive mechanism 6 (a remote control can be set). The drive mechanism 6 drives the rotating rod 8 to swing (the swing mode is preset, and the angle of reciprocating swing is different in different swing modes so that the user can flexibly choose according to their own foot condition). The rotating rod 8 drives the ankle-foot support plate 3 to swing, and the ankle-foot support plate 3 will drive the user's foot to swing around the ankle, performing flexion or extension movements to achieve the purpose of corrective rehabilitation treatment.

[0033] The present invention provides an ankle and foot orthotic exercise rehabilitation device for student sports injury rehabilitation. In this embodiment, the drive mechanism 6 includes a fixed rod 61 and a swing rod 64. The fixed rod 61 is fixedly connected inside the housing 4. Both ends of the swing rod 64 are connected to two rotating rods 8 through electromagnetic clutches 65. An electric telescopic rod 62 is rotatably mounted on the fixed rod 61. A swing arm 63 is fixedly connected to the swing rod 64. The swing arm 63 is perpendicular to the axis of the swing rod 64. The movable end of the electric telescopic rod 62 is hinged to one end of the swing arm 63.

[0034] Specifically, during use, the electric telescopic rod 62 is activated, and the electric telescopic rod 62 drives the swing rod 64 to rotate through the swing arm 63. The swing rod 64 drives the two rotating rods 8 to rotate through the electromagnetic clutch 65. Depending on the injured foot, the connection and disconnection of the two electromagnetic clutches 65 can be freely controlled. During rehabilitation treatment, if only one foot is injured, only the electromagnetic clutch 65 on that side can be activated, so that the swing rod 64 can transmit power to the rotating rod 8 on that side and drive the ankle and foot support plate 3 on that side to swing.

[0035] In addition, the electric telescopic rod 62 has an adjustable extension stroke depending on the injury, and the corresponding ankle and foot support plate 3 has an adjustment range of 0°~35° for swing angle adjustment, which fully covers the angle required for ankle flexion and extension rehabilitation. The controller has three preset rehabilitation modes for mild, moderate and severe injuries, corresponding to different swing angles and reciprocating frequencies, to suit students with different injuries, thereby achieving the goal of corresponding treatment according to different injuries.

[0036] The present invention provides an ankle and foot orthotic exercise rehabilitation device for student sports injury rehabilitation. In this embodiment, the damping protection component 7 includes a fixed shell 71 and an inner cylinder 74. The fixed shell 71 is fixedly installed on the shell 4, and the inner cylinder 74 is sleeved on the rotating rod 8. The fixed shell 71 is located outside the inner cylinder 74. A plurality of evenly distributed paddle plates 73 are fixedly connected to the inner cylinder 74. A plurality of evenly distributed shear plates 72 are fixedly connected to the inner sidewall of the fixed shell 71. The space between the fixed shell 71 and the inner cylinder 74 is filled with a non-Newtonian fluid.

[0037] Specifically, the non-Newtonian fluid is 100% filled with no air gaps, ensuring precise damping response. The faster the active recovery force is applied, the greater the fluid damping, and it can lock in place even with instantaneous overload, providing sensitive protection.

[0038] During active rehabilitation therapy, disconnecting the power connection between the two electromagnetic clutches 65 allows the user to actively drive their foot to rotate the ankle-foot support plate 3. The ankle-foot support plate 3 then rotates the rotating rod 8, which in turn rotates the inner cylinder 74. The inner cylinder 74, through the shear plate 73, induces non-Newtonian fluid motion. With the resistance of the shear plate 72, the non-Newtonian fluid provides significant damping to the shear plate 73, resulting in a greater reaction force from the ankle-foot support plate 3 on the user's foot. This allows for better therapeutic effects. However, if the user accidentally applies excessive force, the ankle-foot support plate 3 may cause the shear plate 73 to rotate. 3. A rapid and powerful impact is generated on the non-Newtonian fluid. According to the characteristics of non-Newtonian fluid, the impact force will cause the non-Newtonian fluid to harden instantly to prevent the movement of the paddle plate 73. The paddle plate 73 will then prevent the rotation of the ankle-foot support plate 3, thus keeping the user's foot in place to protect the user's foot and prevent excessive stretching of the foot, which could aggravate the ankle injury. The setting of the damping protection component 7 allows the user's foot to receive corrective rehabilitation treatment in a uniform movement mode. At the same time, it also allows the user to better control the flexion and extension angle of the foot and avoid excessive exercise that could lead to secondary injury.

[0039] During passive treatment, the drive mechanism 6 will drive the rotating rod 8 to rotate at a constant speed, and the non-Newtonian fluid inside the fixed shell 71 will not affect the movement of the inner cylinder 74.

[0040] The present invention provides an ankle and foot orthotic exercise rehabilitation device for the rehabilitation of sports injuries in students. In this embodiment, two leg support components 2 are also installed on the base plate 1. The two leg support components 2 are respectively located on the sides of the two ankle and foot support plates 3. The leg support components 2 are used to support the user's lower legs so that the feet are suspended in the air, avoiding friction between the user's feet and the bed, and avoiding pressure on the user's feet, so as to improve the treatment effect.

[0041] The present invention provides an ankle and foot orthotic exercise rehabilitation device for student sports injury rehabilitation. In this embodiment, the leg support assembly 2 includes a lower leg support plate 25, a second fixing cylinder 26 and a lifting column 29. The second fixing cylinder 26 is fixedly installed on the base plate 1, the lifting column 29 is slidably installed on the second fixing cylinder 26, and the lower leg support plate 25 is installed on the top of the lifting column 29 extending out of the second fixing cylinder 26.

[0042] The leg support assembly 2 also includes a lifting drive mechanism 6, which is installed inside the housing 4. One end of the lifting drive mechanism 6 is connected to the lifting column 29. The lifting drive mechanism 6 is used to drive the lifting column 29 to lift and lower, so as to adjust the position of the lower leg support plate 25 for use by users with different foot sizes.

[0043] Specifically, the lower leg support plate 25 is a U-shaped plate, wrapped with sponge to form the outline of the lower leg in order to protect the lower leg.

[0044] The present invention provides an ankle and foot orthotic exercise rehabilitation device for student sports injury rehabilitation. In this embodiment, the lifting drive mechanism 6 includes a servo motor and a screw 28. The screw 28 is rotatably installed in the second fixed cylinder 26. One end of the screw 28 is threadedly connected to the lifting column 29. The output shaft of the servo motor is fixedly connected to a drive rod 24. One end of the drive rod 24 extending into the second fixed cylinder 26 is connected to the screw 28 by a transmission pair 27.

[0045] Specifically, the servo motor drives the drive rod 24 to rotate, and the drive rod 24 drives the screw 28 to rotate through the transmission pair 27. The screw 28 drives the lifting column 29 to rise and fall, thereby driving the lower leg support plate 25 to rise and fall, so as to adjust the vertical distance between the lower leg support plate 25 and the rotating rod 8, thus enabling users with different foot sizes to use it.

[0046] Since there are two support leg assemblies 2, in order to reduce production costs and facilitate operation, the two servo motors can be replaced by a single dual-head motor 210. The two drive rods 24 are connected to the two output shafts of the dual-head motor 210, and the dual-head motor 210 is installed in the housing 4 between the two support leg assemblies 2.

[0047] This invention provides an ankle and foot orthotic rehabilitation device for student sports injury rehabilitation. Since the user is lying flat, when adjusting the height of the calf support plate 25, the user's lower leg rotates around the hip bone. Therefore, when the foot is straight, the lower leg is in an inclined position, and the angle of support provided by the calf support plate 25 varies with different heights. When the calf support plate 25 is installed at a fixed angle, the edge of the calf support plate 25 will compress the lower leg, causing discomfort and reducing the user's experience. Therefore, in this embodiment, the calf support plate 25 is rotatably mounted at the end of the lifting column 29. The leg support assembly 2 also includes two elastic support components, located on both sides of the second fixed cylinder 26, with the output ends of both elastic support components abutting the bottom of the calf support plate 25. The two elastic support components are used to support both ends of the calf support plate 25 to provide elastic support for the user's lower leg. While the user appropriately changes the angle of their lower leg, the elastic support components provide a certain supporting force to prevent the user's lower leg from moving arbitrarily.

[0048] The present invention provides an ankle and foot orthotic exercise rehabilitation device for student sports injury rehabilitation. In this embodiment, the elastic support component includes a first fixed cylinder 23, a support column 22 and a compression spring 21. The first fixed cylinder 23 is fixedly installed on the base plate 1, the support column 22 is slidably installed on the first fixed cylinder 23, and the compression spring 21 is connected between the support column 22 and the first fixed cylinder 23.

[0049] Specifically, the end of the first fixed cylinder 23 abuts against the bottom of the lower leg support plate 25.

[0050] When the lower leg support plate 25 is adjusted in height, the lower leg support plate 25 presses or releases the support column 22, so that the support column 22 rises and falls with the lower leg support plate 25. When the lower leg support plate 25 is tilted, the two support columns 22 rise and fall to different degrees to support the two ends of the lower leg support plate 25, adaptively adapting to the tilt angle of the lower leg, and achieving pressure-free flexible support.

[0051] This device is designed for students to perform rehabilitation training while lying flat on a bed. The specific steps for use are as follows:

[0052] Step 1: Position the equipment. Place the device stably at the foot of the bed, ensuring that the base plate 1 is level and in contact with the bed surface, and that the equipment does not wobble or shift. Connect the power supply to the equipment, and the controller will start in standby mode.

[0053] Step 2: Limb support adjustment. The student sits on the bed with both legs placed above the two leg support components 2. The dual-head motor 210 is started to drive the screw 28 to rotate. The height of the lifting column 29 and the lower leg support plate 25 is adjusted so that the lower legs are placed stably on the U-shaped lower leg support plate 25, with the feet naturally suspended and without contact with the bed surface. The lower leg posture is finely adjusted so that the lower leg support plate 25 adapts to the tilt angle of the limb.

[0054] Step 3: Foot immobilization. Place the injured ankle and corresponding foot on the ankle-foot support plate 3, tighten the straps 5 to fix the foot in layers. The fixation force should be such that it fits firmly without squeezing or soreness. For unilateral injuries, only fix the foot on that side.

[0055] Step 4: Select the rehabilitation mode. Choose the corresponding mode according to your rehabilitation stage: In the early stage of rehabilitation and the postoperative rest stage, select the passive rehabilitation mode and connect the corresponding side electromagnetic clutch 65 power connection; In the middle and late stages of rehabilitation and the muscle strengthening stage, select the active rehabilitation mode and disconnect the electromagnetic clutch 65 power connection.

[0056] Step 5: Parameter adjustment and start-up. In passive mode, select the rehabilitation program corresponding to the injury through the controller, or manually adjust the extension stroke of the electric telescopic rod 62, and set the swing angle and frequency. After confirming that the parameters are correct, start the equipment to begin rehabilitation training.

[0057] Step Six: Finish the storage. After completing the rehabilitation training, turn off the power to the device, loosen the strap 5, slowly remove the foot, and reset the device to its original position to complete a single rehabilitation training session.

[0058] This invention provides two standardized rehabilitation treatment methods adapted to different stages of rehabilitation, precisely matching the full-cycle rehabilitation pattern of students' ankle and foot injuries:

[0059] 1. Passive corrective rehabilitation therapy (suitable for the acute phase of injury, 1-4 weeks post-surgery):

[0060] For student patients with ankle ligament sprains, minor twists, postoperative joint stiffness, and inability to exert force independently, passive mechanical correction rehabilitation is adopted.

[0061] When the electromagnetic clutch 65 is activated, the drive mechanism 6 completely takes over the movement of the ankle and foot support plate 3. The student's foot passively follows the device throughout the entire process to complete the ankle joint flexion, extension, and reciprocating swing. The controller has a preset low-speed, small-angle swing program, with the swing angle controlled between 0° and 15° and the swing frequency low and stable. Through continuous and regular passive movement, it loosens the soft tissue adhesions around the ankle joint, promotes local blood circulation, relieves joint stiffness, maintains the basic range of motion of the ankle joint, and avoids muscle atrophy and joint stiffness caused by long-term rest, laying the foundation for subsequent active rehabilitation. In this mode, the device is driven at a constant speed throughout the entire process, with no student exertion of force, and zero risk of secondary injury.

[0062] 2. Active damping resistance rehabilitation therapy (suitable for the injury recovery period and intensive period, more than 4 weeks post-surgery):

[0063] For student patients whose injuries have initially healed, whose joint mobility has recovered, and who need to strengthen their ankle muscle strength and balance, active damping resistance rehabilitation is adopted.

[0064] Disconnect the power transmission of the electromagnetic clutch 65, release the mechanical limit of the equipment, and switch the equipment to follow-up damping state; the student autonomously exerts force to drive the flexion, extension and swing of the foot, which drives the ankle and foot support plate 3 and the rotating rod 8 to rotate. The non-Newtonian fluid of the damping protection component 7 provides constant and uniform motion damping, forcing the muscles around the student's ankle joint to exert stable force, and accurately exercise the muscle strength and control of the tibialis anterior muscle, peroneus muscle and plantar muscle group.

[0065] During training, if a student exerts uneven force or uses excessive force instantaneously, causing the ankle to over-flex or over-extend, the non-Newtonian fluid will instantly shear, thicken, and harden, quickly locking the rotation of the rotating rod 8, limiting abnormal ankle movement, automatically terminating dangerous actions, and achieving intelligent protection.

[0066] This method can effectively restore ankle muscle strength, joint stability, and proprioception, reduce the probability of sports injury recurrence, and is suitable for students' intensive rehabilitation training before returning to sports.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0068] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An ankle-foot orthotic rehabilitation device for student sports injury rehabilitation, comprising a base plate, characterized in that, A housing is fixedly installed on the base plate. Rotating rods are rotatably installed on both sides of the housing. Ankle and foot support plates are fixedly connected to the opposite ends of the two rotating rods. Straps for fixing the feet are installed on the ankle and foot support plates. The housing contains a drive mechanism, the output of which is connected to two rotating rods. The drive mechanism drives the two rotating rods to swing back and forth, and the rotating rods rotate in conjunction with the ankle and foot support plate to complete passive ankle and foot rehabilitation treatment. The output of the drive mechanism can cut off the power transmission to the rotating rods, release the mechanical limitation of the ankle and foot support plate, and allow the user to actively drive the ankle and foot support plate to rotate, thereby achieving active rehabilitation treatment. A damping protection component is also provided between the rotating rod and the housing. In the active rehabilitation treatment state, the damping protection component provides uniform rotational damping for the rotating rod, and can lock the rotating rod when the user exerts excessive force, limiting excessive flexion and extension of the ankle and foot, and avoiding secondary ankle strain.

2. The ankle and foot orthotic rehabilitation device for student sports injury rehabilitation according to claim 1, characterized in that, The drive mechanism includes a fixed rod, an electric telescopic rod, a swing arm, a swing rod, and an electromagnetic clutch. The fixed rod is fixedly connected inside the housing, and the two ends of the swing rod are respectively connected to the rotating rods on both sides through electromagnetic clutches. The electric telescopic rod is rotatably mounted on the fixed rod, the swing arm is vertically fixed to the outer wall of the swing rod, and the movable end of the electric telescopic rod is hinged to the end of the swing arm.

3. The ankle and foot orthotic rehabilitation device for student sports injury rehabilitation according to claim 1, characterized in that, The damping protection assembly includes a fixed shell, a shear plate, a lever plate, and an inner cylinder. The fixed shell is fixedly installed on the side wall of the shell, and the inner cylinder is fixedly sleeved on the outside of the rotating rod and located inside the fixed shell. The outer wall of the inner cylinder is fixed with several evenly distributed shearing plates, and the inner wall of the fixed shell is fixed with several evenly distributed shearing plates. The space between the fixed shell and the inner cylinder is filled with a non-Newtonian fluid with a filling rate of 98% to 100%.

4. The ankle and foot orthotic rehabilitation device for student sports injury rehabilitation according to claim 1, characterized in that, Two leg support assemblies are symmetrically installed on the base plate, and the two leg support assemblies are respectively set for two ankle and foot support plates. The leg support assemblies are used to support the user's lower legs.

5. The ankle and foot orthotic rehabilitation device for student sports injury rehabilitation according to claim 4, characterized in that, The outrigger assembly includes a second fixed cylinder, a lifting column, and a lower leg support plate. The second fixed cylinder is fixed to the base plate. The lifting column is slidably assembled inside the second fixed cylinder. The lower leg support plate is installed at the top of the lifting column and has a U-shaped structure with a protective sponge layer wrapped on the outside.

6. The ankle and foot orthotic rehabilitation device for student sports injury rehabilitation according to claim 5, characterized in that, The outrigger assembly is equipped with a lifting drive mechanism, which includes a servo motor, a drive rod, a transmission pair, and a screw. The servo motor is fixedly installed inside the housing, and the output shaft of the servo motor is fixedly connected to the drive rod. The screw is rotatably installed inside the second fixed cylinder, and the screw is threadedly connected to the lifting column. The end of the drive rod is connected to the screw via a transmission pair.

7. The ankle and foot orthotic rehabilitation device for student sports injury rehabilitation according to claim 5, characterized in that, The lower leg support plate is rotatably mounted on the top of the lifting column. The leg support assembly also includes two sets of symmetrically arranged elastic support assemblies. The elastic support assembly includes a first fixed cylinder, a support column, and a compression spring. The first fixed cylinder is fixed to the base plate. The support column is slidably assembled inside the first fixed cylinder. The compression spring is connected between the support column and the bottom of the first fixed cylinder. The top of the support column abuts against both ends of the bottom of the lower leg support plate for elastic adaptive support of the lower leg support plate.

8. The ankle and foot orthotic rehabilitation device for student sports injury rehabilitation according to claim 1, characterized in that, The housing also contains a controller and a remote control.

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