Ankle-foot rehabilitation training device

Abstract

The invention discloses an ankle-foot rehabilitation training device, and relates to the technical field of rehabilitation medical instruments. The problem that the training effect of ankle and foot training equipment in the prior art is limited is solved. The device specifically comprises a pedal, T-shaped columns are fixedly connected to the two side faces, close to the front end and the rear end, of the pedal, and the outer walls of the two T-shaped columns close to the front end are sleeved with the same bandage A; the outer walls of the other two T-shaped columns close to the rear end are provided with the same binding band B, and the outer walls, close to the two ends, of the binding band B are provided with a plurality of through holes at equal intervals; a hemisphere is arranged on the outer wall of the bottom of the pedal; the bandage A and the bandage B are made of elastic materials; and the hemisphere is an inflatable semicircular sphere. According to the device, dorsiflexion training, dorsiflexion and introversion or extroversion strength training, toe grasping training, ankle joint proprioceptive feeling and stability training and whole body posture control and balance training in the ankle joint open chain state can be conducted through the bandage A and the bandage B under the load-bearing body position, and the training effect is improved.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation medical device technology, and in particular to an ankle and foot rehabilitation training device. Background Technology

[0002] Ankle instability can be caused by various factors, including ankle sprains, functional flat feet, and being overweight. Ankle instability is a major contributing factor to recurrent ankle sprains, chronic ankle pain, plantar fasciitis, hallux valgus, and metatarsalgia. Weakness around the ankle joint and poor motor control are significant causes of ankle instability. Ankle instability primarily occurs during weight-bearing contact between the foot and the ground. Improving ankle strength and motor control is currently a crucial approach to treating ankle instability. Therefore, exercising the muscles around the ankle under weight-bearing conditions more closely resembles actual functional movement and yields the best results.

[0003] In existing technologies, the following measures are commonly used to train the ankle joint: 1) Use resistance bands or your hands to provide resistance for ankle strength training, but only in an open-chain state; 2) Use devices such as inflatable balance mats, balance pedals, balance boards, and Bosu balls to conduct proprioception and stability training; 3) Rehabilitation therapists use manual joint mobilization techniques to improve the range of motion of the joints.

[0004] However, the above solutions can only provide open-chain strength training or stability training for the foot and ankle. Functional movements such as walking, running, jumping, and squatting require a combination of closed-chain and open-chain movements, but the stability requirements for the foot and ankle are highest in the closed-chain state (i.e., when the foot is in contact with the ground and bearing weight). Based on this, we propose an ankle and foot rehabilitation training device that can perform multi-dimensional movements. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an ankle and foot rehabilitation training device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An ankle and foot rehabilitation training device includes a pedal, wherein T-shaped columns are fixedly connected to both sides of the pedal near the front and rear ends, and the same strap A is fitted on the outer wall of two of the T-shaped columns near the front end. The outer walls of the other two T-shaped columns near the rear end are provided with the same strap B, and the outer walls of strap B near both ends are provided with multiple through holes at equal intervals. The bottom outer wall of the pedal is provided with a hemisphere.

[0007] Preferably, both strap A and strap B are made of elastic material.

[0008] Preferably, the hemisphere is an inflatable semi-circular sphere.

[0009] Preferably, the inner wall of the pedal near the four corners is provided with connection holes.

[0010] Preferably, it also includes an auxiliary training structure, which includes a support, a turntable rotatably connected to the inner wall of the top of the support, a motor fixedly connected to the inner wall of the bottom of the support, a shaft fixedly connected to the edge of the top surface of the turntable, and a metal ball fixedly connected to the top of the shaft. The output end of the motor is connected to the bottom end of the turntable through a coupling, and the outer wall of the metal ball is hinged to the inner wall of the bottom of the hemisphere.

[0011] Preferably, an electromyography (EMG) sensor is bonded to one side of the pedal; An alarm is fixedly connected to one side of the bracket.

[0012] Preferably, the bottom surface of the pedal is provided with multiple folded air cylinders around its perimeter.

[0013] An ankle and foot rehabilitation training device includes a pedal, the top outer wall of which is provided with a groove, and a set of guide rods is fixedly connected to the corresponding side of the groove. A movable plate is slidably fitted on the outer wall of the guide rods.

[0014] Preferably, both sides of the pedal and the movable plate are fixedly connected to T-shaped posts; The outer walls of two T-shaped columns near the front end are fitted with the same strap A; The outer walls of the other two T-shaped columns near the rear end are provided with the same strap B, and the outer walls of strap B near both ends are provided with multiple through holes at equal intervals. The bottom outer wall of the pedal is provided with a hemisphere.

[0015] The beneficial effects of this invention are as follows: 1. This invention provides a comprehensive structural solution for ankle joint training by incorporating a hemispherical structure and elastic straps A and B. It solves the problem that existing training equipment cannot provide closed-chain strength training for subtalar joint supination, inversion, plantar flexion and adduction, arch elevation, and subtalar joint pronation, eversion, dorsiflexion and abduction, and arch depressing under weight-bearing conditions. Under weight-bearing conditions, this invention enables open-chain ankle joint dorsiflexion training, dorsiflexion plus inversion or eversion strength training, toe grip training, ankle proprioception and stability training, and whole-body posture control and balance training using straps A and B, thereby improving training effectiveness.

[0016] 2. According to different people's ankle joint sizes, the present invention can fit the appropriate through holes onto the two T-shaped posts at the rear end. It can also adjust the resistance of the strap B by fitting and fixing the through holes at different distances on the T-shaped posts according to training needs.

[0017] 3. When installing the hemispherical training device, the patient's foot is inserted onto the pedal and pressure is applied to tilt the device in any direction, such as forward, backward, left, and right, with the hemispherical device as the center. This allows for multi-dimensional ankle and foot rehabilitation training.

[0018] 4. In this invention, after the foot is inserted onto the pedal, the motor is started and the turntable rotates synchronously, causing the pedal to make a circular motion under the drive of the shaft. During this period, by adjusting the position of the pedal and cooperating with the ball-joint structure of the hemisphere and the metal ball, passive multi-dimensional training of the ankle and foot at different angles can be achieved. It is relatively convenient to use and suitable for patients who cannot perform ankle and foot training independently.

[0019] 5. Before training, the flexible electrode pads of the electromyography sensor are attached to the skin surface of the ankle joint to monitor ankle muscle activity in real time. When the parameters reach the threshold range, a signal is transmitted to the PLC control module so that its alarm is activated to remind people and help ensure the health and safety of the patient during training.

[0020] 6. When wearing the footplate, the present invention can adjust the distance between straps A and B by moving the movable plate back and forth, thereby adapting to patients with different foot sizes.

[0021] 7. In this invention, the patient's foot is inserted onto the pedal and pressure is applied to tilt in any direction, such as forward, backward, left, and right, with the hemisphere as the center. This enables multi-dimensional ankle and foot rehabilitation training movements. Furthermore, when the patient performs dorsiflexion, plantar flexion, and inversion / exversion ankle and foot training movements, pressure is applied to the folded air cylinder at the bottom of the corresponding position, thereby increasing the bottom resistance of the ankle and foot training. Attached Figure Description

[0022] Figure 1 This is a top view of Embodiment 1 of the ankle and foot rehabilitation training device proposed in this invention; Figure 2 This is a side view of an embodiment 1 of the ankle and foot rehabilitation training device proposed in this invention; Figure 3 This is a top view schematic diagram of Embodiment 2 of the ankle and foot rehabilitation training device proposed in this invention; Figure 4 This is a side view of an embodiment 2 of the ankle and foot rehabilitation training device proposed in this invention.

[0023] In the diagram: 1. Pedal, 101. Groove, 102. Moving plate, 103. Guide rod, 2. Strap A, 3. Strap B, 301. Through hole, 4. T-shaped column, 5. Hemisphere, 6. Bracket, 7. Turntable, 8. Motor, 9. Alarm, 10. Axis column, 11. Electromyography sensor, 12. Folding air pump. Detailed Implementation

[0024] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0025] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0026] Example 1: An ankle and foot rehabilitation training device, such as Figure 1-2 As shown, the device includes a pedal 1. T-shaped posts 4 are welded to both sides of the pedal 1 near the front and rear ends. Two of the T-shaped posts 4 near the front end have the same strap A2 fitted onto their outer walls for easy replacement. The other two T-shaped posts 4 near the rear end have the same strap B3 on their outer walls. Multiple through holes 301 are equidistantly spaced on the outer walls of the strap B3 near both ends. Depending on the ankle size of different individuals, the appropriate through holes 301 can be fitted onto the two rear T-shaped posts 4. Furthermore, the resistance of the strap B3 can be adjusted by fitting and fixing the through holes 301 at different distances onto the T-shaped posts 4 according to training needs, making adjustment convenient.

[0027] Preferably, both strap A2 and strap B3 are made of elastic material; strap B3 can also be used for dynamic joint mobilization training.

[0028] Furthermore, a sealed hemisphere 5 is bonded to the bottom outer wall of the pedal 1; the detachable hemisphere 5 improves the flexibility of the equipment.

[0029] Preferably, the hemisphere 5 can be made of rubber or metal; in this embodiment, the hemisphere 5 is an inflatable semi-circular sphere. Inflate the hemisphere 5 with air, making the bottom of the pedal 1 an unstable surface. During training, the patient inserts their foot onto the pedal 1 and applies pressure to tilt in any direction, such as forward, backward, left, and right, with the hemisphere 5 as the center. This enables multi-dimensional ankle and foot rehabilitation training with a simple structure.

[0030] Alternatively, the inner wall of the pedal 1 near the four corners is provided with connection holes; external bolts are passed through the connection holes to fix the pedal 1 to the ground or a flat surface for use.

[0031] Preferably, there can be multiple straps A2 and B3, which are not limited here and can be made according to actual production needs.

[0032] Insert the foot onto pedal 1. The straps A2 and B3, positioned anteriorly and posteriorly, are secured to the forefoot and anterior talus, respectively. Lifting the forefoot from the heel allows for dorsiflexion resistance training of the ankle joint through the stretching of strap A2. Conversely, lifting the heel from the forefoot allows for plantar flexion resistance training of the ankle joint through the stretching of strap B3. Furthermore, by adjusting the lateral center of gravity, strap B3 can assist the patient in performing eversion and inversion exercises, further increasing the diversity of ankle and foot training movements. It also allows for toe grasping training, ankle proprioception and stability training, as well as overall posture control and balance training, supporting three-dimensional ankle rotation and enabling complex movements of ankle flexion, extension, eversion, and pronation / supination.

[0033] In this embodiment, the appropriate through hole 301 can be fitted onto the two T-shaped posts 4 at the rear end according to the size of different people's ankle joints. It can also adjust the resistance of the strap B3 by fitting through holes 301 at different distances onto the T-shaped posts 4 according to training needs.

[0034] When installing hemisphere 5 for training, the patient's foot is inserted onto pedal 1, and pressure is applied to tilt the foot in any direction, such as forward, backward, left, and right, with hemisphere 5 as the center, thereby enabling multi-dimensional ankle and foot rehabilitation training. When not using the hemispherical 5 for training, external bolts are passed through the connecting holes to fix the pedal 1 to the ground or a flat surface. The foot is inserted onto the pedal 1, with the straps A2 and B3 positioned at the front and rear of the foot and talus respectively. Lifting the front of the foot from the heel allows for dorsiflexion resistance training of the ankle joint through the stretching of strap A2; conversely, lifting the heel from the front of the foot allows for plantar flexion resistance training of the ankle joint through the stretching of strap B3. Furthermore, by adjusting the lateral center of gravity, strap B3 can assist the patient in performing eversion and inversion exercises, further increasing the diversity of ankle and foot training movements. It also allows for toe grasping training, ankle proprioception and stability training, and overall posture control and balance training, supporting three-dimensional ankle rotation.

[0035] This invention enables ankle joint open-chain strength training, closed-chain strength training, ankle joint dorsiflexion range of motion training, and ankle joint proprioception and stability training to be performed using straps A2 and B3 in a weight-bearing position, providing a comprehensive and structural solution for ankle joint training.

[0036] This invention solves the problem that existing training equipment cannot provide closed-chain strength training in the foot and ankle under weight-bearing conditions, such as supination, inversion, plantar flexion and adduction of the subtalar joint, elevation of the arch, pronation, eversion, dorsiflexion and abduction of the foot, and depressing of the arch. It can perform dorsiflexion training, dorsiflexion plus inversion or eversion strength training, toe grip training, ankle proprioception and stability training, and whole-body posture control and balance training in an open-chain state.

[0037] Example 2: An ankle and foot rehabilitation training device, such as Figure 3-4 As shown, in order to perform passive ankle and foot rehabilitation training, this embodiment makes the following improvements based on embodiment 1: it also includes an auxiliary training structure for passive ankle and foot training. The auxiliary training structure includes a support 6, a turntable 7 rotatably connected to the inner wall of the top of the support 6, a motor 8 fixed to the inner wall of the bottom of the support 6 by bolts, a shaft 10 fixed to the edge of the top surface of the turntable 7 by bolts, and a metal ball welded to the top of the shaft 10. The output end of the motor 8 is connected to the bottom end of the turntable 7 through a coupling, and the outer wall of the metal ball is hinged to the inner wall of the bottom of the hemisphere 5. After the foot is inserted onto pedal 1, the motor 8 is started, which drives the turntable 7 to rotate synchronously. This causes pedal 1 to make a circular motion under the drive of the shaft column 10. During this period, by adjusting the position of pedal 1 and coordinating the movement of the ball joint structure between hemisphere 5 and metal ball, passive multi-dimensional training of the ankle and foot at different angles can be achieved. It is relatively convenient to use and suitable for patients who cannot perform ankle and foot training independently.

[0038] Furthermore, an electromyography (EMG) sensor 11 is bonded to one side of the pedal 1 and electrically connected to a PLC control module that is fixed to the inner wall of the top of the bracket 6 by bolts; an alarm 9 that is electrically connected to the PLC control module is fixed to one side of the bracket 6 by bolts; before training, the flexible electrode pads of the EMG sensor 11 are attached to the skin surface of the ankle joint to monitor ankle muscle activity in real time. When the parameters reach the threshold range, a signal is transmitted to the PLC control module so that its alarm 9 is activated to provide a prompt to people and assist in ensuring the health and safety of patients during training.

[0039] Preferably, hemisphere 5 is made of metal.

[0040] In this embodiment, before training, the flexible electrode pads of the electromyography sensor 11 are attached to the skin surface of the ankle joint for real-time monitoring of ankle muscle activity. During use, after the foot is inserted onto the pedal 1, the motor 8 is started, which drives the turntable 7 to rotate synchronously, causing the pedal 1 to make a circular motion under the drive of the shaft column 10. During this period, by adjusting the near and far positions of the pedal 1 and coordinating the movement of the ball-joint structure between the hemisphere 5 and the metal ball, passive multi-dimensional training of the ankle and foot at different angles can be achieved.

[0041] Example 3: An ankle and foot rehabilitation training device, such as Figure 3-4 As shown, in order to be suitable for training patients with different foot sizes, this embodiment makes the following improvements based on embodiment 1: The top outer wall of the pedal 1 is provided with a groove 101, and a set of guide rods 103 are welded to the corresponding side of the groove 101. The outer wall of the guide rods 103 is slidably fitted with a moving plate 102; T-shaped posts 4 are welded to both sides of the pedal 1 and the moving plate 102; When wearing the pedal 1, the distance between the straps A2 and B3 can be adjusted by moving the moving plate 102 back and forth, thereby adapting to patients with different foot sizes.

[0042] Furthermore, the outer walls of two of the T-shaped posts 4 near the front end are fitted with the same strap A2, facilitating future replacement. The outer walls of the other two T-shaped posts 4 near the rear end are fitted with the same strap B3. The outer walls of strap B3 near both ends have multiple through holes 301 at equal intervals. Depending on the size of different people's ankle joints, the appropriate through holes 301 can be fitted onto the two rear T-shaped posts 4. It is also possible to adjust the resistance of strap B3 by fixing the through holes 301 at different distances on the T-shaped posts 4 according to training needs, making adjustment convenient.

[0043] Example 4: An ankle and foot rehabilitation training device, such as Figure 4 As shown, in order to provide multiple training resistances, this embodiment makes the following improvements based on embodiment 1: a hemisphere 5 is welded to the bottom outer wall of the pedal 1, and the hemisphere 5 is made of metal. Furthermore, multiple foldable air pumps 12 capable of independent inflation and deflation are bonded to the bottom surface of the pedal 1 around its perimeter, similar to foldable foot pumps in the prior art, which will not be described in detail here.

[0044] When using this invention, the patient inserts their foot onto the pedal 1 and applies pressure to tilt in any direction, such as forward, backward, left, and right, with the hemisphere 5 as the center. This allows for multi-dimensional ankle and foot rehabilitation training movements. Furthermore, when the patient performs dorsiflexion, plantar flexion, and inversion / exversion ankle and foot training movements, pressure is applied to the folded air cylinder 12 at the bottom of the corresponding position, thereby increasing the bottom resistance of the ankle and foot training.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An ankle and foot rehabilitation training device, comprising a foot pedal (1), characterized in that, The pedal (1) is fixedly connected to T-shaped posts (4) on both sides near the front and rear ends, and the outer wall of two T-shaped posts (4) near the front end is fitted with the same strap A (2). The outer walls of the other two T-shaped columns (4) near the rear end are provided with the same strap B (3), and the outer walls of the strap B (3) near both ends are provided with multiple through holes (301) at equal intervals. The bottom outer wall of the pedal (1) is provided with a hemisphere (5).

2. The ankle and foot rehabilitation training device according to claim 1, characterized in that, Both the straps A (2) and B (3) are made of elastic material.

3. The ankle and foot rehabilitation training device according to claim 2, characterized in that, The hemisphere (5) is an inflatable semi-circular sphere.

4. The ankle and foot rehabilitation training device according to claim 3, characterized in that, The inner wall of the pedal (1) near the four corners is provided with connection holes.

5. The ankle and foot rehabilitation training device according to claim 1, characterized in that, It also includes an auxiliary training structure, which includes a support (6), a turntable (7) rotatably connected to the inner wall of the top of the support (6), a motor (8) fixedly connected to the inner wall of the bottom of the support (6), a shaft (10) fixedly connected to the edge of the top surface of the turntable (7), and a metal ball fixedly connected to the top of the shaft (10). The output end of the motor (8) is connected to the bottom end of the turntable (7) through a coupling, and the outer wall of the metal ball is hinged to the inner wall of the bottom of the hemisphere (5).

6. The ankle and foot rehabilitation training device according to claim 5, characterized in that, An electromyography sensor (11) is attached to one side of the pedal (1). A warning device (9) is fixedly connected to one side of the bracket (6).

7. The ankle and foot rehabilitation training device according to claim 1, characterized in that, Multiple folded air cylinders (12) are arranged around the bottom surface of the pedal (1).

8. An ankle and foot rehabilitation training device, comprising a foot pedal (1), characterized in that, The top outer wall of the pedal (1) is provided with a groove (101), and a set of guide rods (103) are fixedly connected to the corresponding side of the groove (101). A movable plate (102) is slidably fitted on the outer wall of the guide rods (103).

9. The ankle and foot rehabilitation training device according to claim 8, characterized in that, Both sides of the pedal (1) and the movable plate (102) are fixedly connected with T-shaped columns (4); Two of the T-shaped columns (4) near the front end have the same strap A (2) fitted on their outer walls. The outer walls of the other two T-shaped columns (4) near the rear end are provided with the same strap B (3), and the outer walls of the strap B (3) near both ends are provided with multiple through holes (301) at equal intervals. The bottom outer wall of the pedal (1) is provided with a hemisphere (5).

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