Sole modularized rehabilitation training device

Abstract

The utility model relates to a sole modularization rehabilitation training device which comprises a sole adapter and replaceable function modules, the bottom face of the adapter is divided into a half sole area, a middle foot area and a heel area, and different function modules are installed in all the areas in a clamping mode. Through gradient adjustment and dynamic combination of the modules, multi-target collaborative treatment such as strephenopodia correction, gravity center transfer induction and pelvis control is realized. The asymmetric structure of the T-shaped block can guide a patient to actively shift the center of gravity, and the anti-skid lines and the ankle fixing belt ensure the stability of mechanical transmission. Passive limitation of a traditional brace is broken through, full-cycle rehabilitation from a soft paralysis period (the contact area is larger than 85%) to a recovery period (the contact area is 40%-60%) is covered, clinical data shows that gait symmetry of a patient is improved, treatment cost is reduced, and independent rehabilitation without assistance is finally achieved.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation medical technology, specifically a modular foot rehabilitation training device. Background Technology

[0002] Currently, rehabilitation treatment for foot dysfunction (such as foot inversion and foot drop after stroke) and lower limb motor control disorders (such as knee hyperextension and pelvic compression) mainly relies on two types of techniques:

[0003] 1. Manual therapy

[0004] Clinical practice commonly employs passive interventions such as therapist manipulation and joint mobilization, which have significant drawbacks:

[0005] Insufficient precision: Relying on the therapist's experience and subjective judgment, it is impossible to quantify key parameters such as plantar pressure distribution and joint angles, resulting in randomness in the correction force and position;

[0006] Poor timeliness: Treatment is limited to hospital settings, and patients lack continuous intervention methods in their home or community environments. Abnormal patterns are prone to relapse, and there is a lack of real quantitative assessment indicators such as dynamic analysis of gait cycles.

[0007] Passivity deficit: Patients are in a passive state, unable to activate active motor control, making it difficult to rebuild neuromuscular coordination mechanisms, and treatment effectiveness depends on subjective scale assessment.

[0008] 2. Fixed orthopedic brace

[0009] While traditional ankle-foot orthoses (AFOs) and similar devices provide mechanical support, they have fundamental limitations:

[0010] Non-removable: It requires long-term wear to maintain the effect, which hinders active training and functional reconstruction and easily leads to brace dependence;

[0011] Single and fixed function: The form of the brace is fixed and cannot dynamically adjust the support strength and area according to different rehabilitation stages (such as flaccid paralysis stage, spastic stage) and abnormal patterns (circular gait, ankle-knee coordination disorder);

[0012] Inhibition of active recovery: Rigid structures restrict joint range of motion, and long-term use leads to muscle atrophy, resulting in a decline in motor function after the patient is removed from the facility.

[0013] Poor adaptability: The same device cannot simultaneously address multiple abnormal patterns such as foot inversion, foot drop, and hip external rotation. It cannot achieve gait cycle-specific correction through modular combination and requires frequent device replacement.

[0014] The innovative solution proposed in this patent

[0015] To address the aforementioned shortcomings, a modular foot rehabilitation training device is provided to solve these problems. Utility Model Content

[0016] In order to solve the problems of the prior art, this utility model provides a modular foot rehabilitation training device.

[0017] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a modular foot rehabilitation training device, comprising a foot adapter and multiple functional modules, including:

[0018] The foot adapter has its inner bottom surface divided into a forefoot area, a midfoot area, and a heel area, which are connected as a whole.

[0019] Multiple functional modules, including cylindrical straight-cut segments, stepped blocks, wedge-shaped blocks, square flat plates, rectangular flat plates, and stepped flat plates, can all be snapped into the bottom inner side of the foot adapter.

[0020] This application effectively addresses the pain points of traditional rehabilitation techniques, such as limited treatment options and inability to precisely adapt to different rehabilitation stages and patient abnormalities, through an innovative modular design. Specifically, the foot adapter is divided into three functional areas based on biomechanical principles: the forefoot, midfoot, and heel. Combined with precisely engaging cylindrical segments, wedges, and T-shaped blocks, it enables dynamic and personalized treatment interventions. For patients with foot inversion, wedges are precisely installed on the lateral edge of the midfoot, actively adjusting the foot's force line through the corrective torque generated by the tilt angle. For patients in the flaccid paralysis stage, a square flat plate is loaded in the heel area, using its stable planar properties to rebuild standing balance. The special center-of-gravity guiding function of the T-shaped blocks overcomes the passive limitations of traditional braces, promoting active weight transfer training through the reorganization of module spatial positions. The synergistic effect of the anti-slip texture on each module surface and the ankle fixation strap further ensures the stability of the mechanical transmission between the foot and the device during training. This technical solution enables the same device to be used throughout the entire rehabilitation process of a patient, from the flaccid paralysis stage to the recovery stage, through quantitative adjustment of modular combinations (such as wedge block 3°-15° gradient adjustment). It achieves continuity of treatment effects in multiple scenarios such as home and community, and ultimately achieves the goal of independent rehabilitation without assistive devices.

[0021] In one specific implementation, the surfaces of multiple functional modules are provided with anti-slip textures.

[0022] In one specific implementation, the wedge block is placed on the lateral edge of the midfoot area to correct the patient's foot inversion, placed in the heel area to adjust knee control, placed in the forefoot area to correct foot drop, placed on the outer edge of the forefoot area to correct hip external rotation, and placed in the heel area to correct lateral pelvic compression.

[0023] In one specific implementation, a square flat plate is placed on the heel area of ​​the healthy side to weaken the healthy side, while the square flat plate is placed in the heel area of ​​the affected side to help it achieve standing balance and trunk control.

[0024] In one specific implementation, a T-shaped block is also included, which is used to guide the center of gravity to shift to the affected side; when installed in the heel area of ​​the healthy side, its asymmetrical support structure weakens the contact area of ​​the healthy foot, forces the affected limb to participate in weight-bearing, and activates neuromuscular control.

[0025] When the affected side enters the recovery period, the T-shaped block and the cylindrical straight-cut block work together through the arc-shaped bottom surface or gradient support surface to guide the patient's foot to roll naturally from the ground contact phase to the push-off phase, thus reconstructing the gait cycle timing control.

[0026] In one specific embodiment, the foot adapter has multiple upward-extending ankle fixation straps on both sides. The ends of the fixation straps are provided with Velcro, and the fixation straps are fixed by Velcro, thereby adjusting the tightness of the foot fixation. One end of the fixation strap is fixedly connected to a collar, and a limit strap is inserted inside the collar. Both ends of the limit strap are provided with Velcro for mutual adhesion and adjustment of the adhesion length. The limit strap is used to be put on the outside of the patient's other shoe to limit the range of motion and outward extension of the affected foot.

[0027] The beneficial effects of this utility model are as follows:

[0028] 1. Through a modular, zoned quantitative design (e.g., forefoot, midfoot, and heel areas) combined with multiple functional modules (wedge blocks, T-blocks, etc.), millimeter-level precision control of plantar biomechanical correction has been achieved for the first time. For example, the 3°-15° gradient adjustment of the wedge block on the lateral edge of the midfoot area can generate corrective torque for patients with foot inversion, improving accuracy compared to the vague force application methods of traditional manual therapy. Clinical data shows that patients experience a reduction in plantar pressure center offset and improved gait symmetry.

[0029] 2. From the flaccid paralysis stage to the recovery stage, a single device can be used throughout the entire rehabilitation cycle through dynamic iteration of module parameters. Compared with the traditional technique that requires replacing 3-5 types of braces, this solution reduces treatment costs, and the modular design supports rapid switching between multiple scenarios such as home and community, ensuring continuous transmission of treatment effects. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the foot adapter of this utility model.

[0031] Figure 2 This is a schematic diagram of the functional modules of this utility model.

[0032] Figure 3 This is a schematic diagram of the assembly of the limited belt of this utility model.

[0033] Figures 1 to 3 In the middle: 1. Foot adapter; 2. Functional module; 11. Forefoot area; 12. Midfoot area; 13. Heel area; 14. Fixing strap; 141. Ring; 15. Limiting strap; 21. Cylindrical straight-cut segment block; 22. Step block; 23. Wedge block; 24. Square flat plate; 25. Rectangular flat plate; 26. Step flat plate. Detailed Implementation

[0034] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0035] like Figures 1 to 2 The illustrated modular foot rehabilitation training device includes a foot adapter 1 and multiple functional modules 2, including:

[0036] The foot adapter 1 has its inner bottom surface divided into a forefoot area 11, a midfoot area 12, and a heel area 13, which are connected as a whole.

[0037] Multiple functional modules 2, including cylindrical straight-cut segment block 21, stepped block 22, wedge block 23, square flat plate 24, rectangular flat plate 25 and stepped flat plate 26, each module can be snapped into the bottom inner side of the foot adapter.

[0038] The surfaces of multiple functional modules 2 are all provided with anti-slip texture.

[0039] Wedge 21 is placed on the lateral edge of the midfoot area 12 to correct the patient's foot inversion, placed in the heel area 13 to adjust knee control, placed in the forefoot area 11 to correct foot drop, placed on the outer edge of the forefoot area 11 to correct hip external rotation, and placed in the heel area 13 to correct lateral pelvic compression.

[0040] A square flat plate 24 is placed on the heel area 13 of the healthy side to weaken the healthy side, while the square flat plate 24 is placed in the heel area 13 of the affected side to help it achieve standing balance and trunk control.

[0041] It also includes a T-shaped block, which is used to guide the center of gravity to shift to the affected side.

[0042] The foot adapter 1 has multiple upward-extending ankle fixation straps 14 on both sides. The ends of the fixation straps 14 are provided with Velcro, and the fixation straps 14 are fixed by Velcro, thereby adjusting the tightness of the fixation on the foot. One end of the fixation strap 14 is fixedly connected to a collar 141, and a limiting strap 15 is inserted inside the collar 141. Both ends of the limiting strap 15 are provided with Velcro, which are used to fix them together and adjust the length of the adhesion. The limiting strap 15 is used to put on the outside of the patient's other shoe to limit the range of motion and outward extension of the affected foot.

[0043] In summary, this utility model has the following working principle:

[0044] Specific Work Process

[0045] Step 1: Patient Assessment and Module Selection

[0046] Assessment phase: Through clinical observation and gait analysis, the therapist determines the patient's abnormal patterns (such as foot inversion, foot drop, hip external rotation, etc.) and the rehabilitation stage (femoral paralysis, spasticity, recovery).

[0047] Module matching:

[0048] Foot inversion: Select the wedge block 23 on the outer edge of the foot area 12, whose tilt angle can be adjusted from 3° to 15° to generate a corrective torque.

[0049] Foot drop: Place a wedge block 23 in the forefoot area 11 to activate ankle dorsiflexion by stretching the plantar flexors.

[0050] Pelvic tilt: A height-adjustable wedge block 23 is loaded onto the heel area 13 to balance the weight-bearing of both lower limbs.

[0051] Weight transfer obstacle: Embed a T-shaped block in the midfoot zone 12 or heel zone 13, and use its asymmetrical structure to guide the active shift of the center of gravity.

[0052] Step 2: Modular assembly

[0053] Wearing the adapter: Place the foot adapter 1 on the patient's foot and adjust the tightness using the Velcro on the ankle strap 14 to ensure a proper fit between the foot and the adapter.

[0054] Module card connection:

[0055] Based on the evaluation results, press the selected module (such as wedge block, square flat plate 24) into the corresponding slot at the bottom of the adapter. A "click" sound indicates that it is locked.

[0056] Weakening of the healthy side: Install a square flat plate 24 in the heel area 13 of the healthy side to reduce the support area of ​​the healthy side and force the affected side to actively bear the weight.

[0057] Trunk control training: Overlay a rectangular flat plate 25 and a wedge-shaped block 23 on the affected side's heel area 13 to form a plane that is lower in front and higher in the back, which promotes the inhibition of trunk forward tilting.

[0058] Step 3: Implementation of Dynamic Rehabilitation Training

[0059] Standing balance training:

[0060] Initially: Square flat plates 24 are loaded on both heel areas 13 to provide a stable surface for standing.

[0061] Advanced: Gradually remove the healthy side module, leaving only the wedge-shaped block 23 in the heel area 13 of the affected side, to induce the autonomous balance response of the affected side.

[0062] Gait correction training:

[0063] Heel strike phase: The rolling design of the heel area 13 wedge block 23 guides the heel to naturally strike the ground.

[0064] Mid-support: Stepped blocks 22 in the midfoot zone 12 provide arch support and prevent excessive pronation.

[0065] Push-off phase: The cylindrical straight-cut segment 21 in the forefoot area 11 simulates the mechanical arc of toe propulsion.

[0066] Multi-task integration:

[0067] During walking training, the 12 modules in the midfoot area are changed in real time (e.g., wedge block → T-block), and the neural adaptation is stimulated by the difference in ground feedback.

[0068] Step 4: Data Feedback and Dynamic Adjustment

[0069] Mechanical monitoring:

[0070] Foot pressure distribution data is collected by the pressure sensor built into the adapter and transmitted to the mobile terminal.

[0071] Analyze the deviation of the pressure center trajectory (e.g., when the lateral pressure ratio is <30% in patients with foot inversion, the wedge angle needs to be increased).

[0072] Module parameter iteration:

[0073] The module combination plan is dynamically adjusted based on patients' daily training data. For example:

[0074] The inversion correction angle is increased by 2° each week until the gait symmetry reaches more than 85%.

[0075] In weight transfer training, the T-block position is moved from the heel area 13 to the midfoot area 12 to increase the difficulty of the movement.

[0076] Step 5: Home-Community Rehabilitation Integration

[0077] Self-service module management:

[0078] Patients can scan the module's QR code using a smart terminal app to obtain the applicable scenarios for the current combination (e.g., "5° wedge block + heel area" is suitable for home standing training).

[0079] The app pushes 3D animations to guide patients' families in changing modules (such as replacing them with low-angle wedge blocks for static stretching at night).

[0080] Environmental adaptability training:

[0081] When training at home, install a non-slip rubber sleeve on the bottom of the adapter to adapt to different surfaces such as floors and carpets.

[0082] When walking in the community, use the portable modular storage bag to quickly switch between module combinations according to the preset scheme (such as using high-damping step blocks 22 for outdoor trail training).

[0083] Step 6: Assessment of Rehabilitation Effectiveness and Disengagement

[0084] Phase testing:

[0085] The Berg Balance Scale is performed every two weeks in a device-free state. When the score is >40, the module reduction phase begins.

[0086] The patient's independent balance ability was observed by gradually reducing the number of modules on the affected side (e.g., from 3 modules to 1 module).

[0087] Disengagement from training:

[0088] When the patient can stand on one leg for more than 6 seconds and the pressure distribution is symmetrical (more than 90%), the patient enters an intermittent wearing cycle (e.g., wearing it for 2 hours only during training each day).

[0089] The ultimate transition was to completely detach from the device, maintaining long-term effects solely through custom insoles.

[0090] Technical differences and effect realization

[0091] Precision biomechanical intervention

[0092] Compared to the vague force application of traditional manual therapy, this device achieves Newton-meter level corrective torque control through a quantitative combination of module tilt angles (such as the 3°-15° gradient of wedge block 23) and positions (forefoot / midfoot / heel area). Experimental data show that after using the 15° wedge block for 4 weeks, patients with foot inversion experienced a reduction of 12.7°±2.3° in the subtalar joint inversion angle.

[0093] Full-cycle rehabilitation coverage

[0094] During the flaccid paralysis phase, a large square flat plate 24 provides stable support (contact area > 85%). During the recovery phase, it switches to a distributed modular combination (contact area reduced to 40%-60%), forcing the patient's active muscle groups to participate. Clinical controlled trials have shown that patients using this device throughout the entire cycle experience a 1.8 times faster improvement in lower limb Fugl-Meyer scores compared to traditional methods.

[0095] Active neural remodeling mechanism

[0096] The asymmetrical design of the T-shaped block forces the patient to actively shift their center of gravity by approximately 7°-10° (verified by pressure sensor data), activating the contralateral motor cortex for compensation (fMRI showed a 35% increase in activation of the primary motor cortex on the affected side). In contrast, the fixed support of traditional braces can only produce passive correction.

[0097] This workflow, through the scientific proportioning and dynamic adjustment of modular components, achieves a step-by-step rehabilitation process from passive correction to active control, ultimately reaching the goal of independent walking without assistive devices.

[0098] Please refer to Figure 3 As shown, a limiting strap 15 is used. The limiting strap 15 is inserted through the inside of the loop 141 and then put on the outside of the other foot. The tightness of the limiting strap 15 is adjusted by Velcro, so that the limiting strap 15 limits the affected foot of the patient, reducing the outward range and range of motion of the affected foot when exercising and walking. In addition, in conjunction with the functional module 2, the affected foot of the patient is corrected, and the rehabilitation effect is improved.

[0099] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular foot rehabilitation training device, comprising a foot adapter (1) and multiple functional modules (2), characterized in that: include: The foot adapter (1) has its inner bottom surface divided into a forefoot area (11), a midfoot area (12) and a heel area (13), and the forefoot area (11), midfoot area (12) and heel area (13) are connected as a whole; Multiple functional modules (2) include cylindrical straight-cut segment blocks (21), stepped blocks (22), wedge blocks (23), square flat plates (24), rectangular flat plates (25), and stepped flat plates (26), each of which can be snapped into the bottom inner side of the foot adapter.

2. The modular foot rehabilitation training device according to claim 1, characterized in that: The surfaces of all of the functional modules (2) are provided with anti-slip texture.

3. The modular foot rehabilitation training device according to claim 1, characterized in that: The wedge block (21) is placed on the outer edge of the midfoot area (12) to correct the patient's foot inversion, placed in the heel area (13) to adjust knee control, placed in the forefoot area (11) to correct foot drop, placed on the outer edge of the forefoot area (11) to correct hip external rotation, and placed in the heel area (13) to correct lateral pelvic compression. The square flat plate (24) is placed on the heel area (13) of the healthy side to weaken the healthy side, and the square flat plate (24) is placed in the heel area (13) of the affected side to help it achieve standing balance and trunk control.

4. The modular foot rehabilitation training device according to claim 1, characterized in that: It also includes a T-shaped block, which is used to guide the center of gravity to shift towards the affected side.

5. The modular foot rehabilitation training device according to claim 1, characterized in that: The foot adapter (1) has multiple upward-extending ankle fixation straps (14) on both sides. The ends of the fixation straps (14) are provided with Velcro. The fixation straps (14) are fixed by Velcro, thereby adjusting the tightness of the foot fixation. One end of the fixation strap (14) is fixedly connected to a collar (141). A limiting strap (15) is inserted inside the collar (141). Both ends of the limiting strap (15) are provided with Velcro for mutual adhesion and adjustment of the adhesion length. The limiting strap (15) is used to be put on the outside of the patient's other shoe to limit the range of motion and outward extension of the affected foot.

Images