Sole modularized rehabilitation training device

Abstract

The invention relates to a sole modular rehabilitation training device which comprises a sole adapter and replaceable functional modules, the bottom surface of the adapter is divided into a half sole area, a middle foot area and a heel area, and different functional modules are mounted in the areas in a clamping manner. 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 phase (the contact area is larger than 85%) to a recovery phase (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] The present invention relates to the technical field of rehabilitation medicine, and specifically to a modular plantar rehabilitation training device. Background Art

[0002] Currently, the rehabilitation treatments for foot dysfunction (such as equinovarus and foot drop after stroke) and lower limb motor control disorders (such as genu recurvatum and pelvic compression) mainly rely on two types of technologies:

[0003] 1. Manual therapy

[0004] Clinically, therapists generally use passive interventions such as manual stretching and joint mobilization, which have significant defects:

[0005] Insufficient accuracy: Relying on the subjective judgment of therapists' experience, 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: The treatment is limited to the hospital scenario, and patients lack continuous intervention means in the home or community environment. Abnormal patterns are likely to recur, and there are no real quantitative evaluation indicators such as dynamic analysis of the gait cycle;

[0007] Passivity defect: Patients are in a passive receiving state, unable to activate the active movement control ability, and it is difficult to reconstruct the neuromuscular coordination mechanism. The treatment effect depends on subjective scale evaluation.

[0008] 2. Fixed orthotic devices

[0009] Although devices such as traditional ankle-foot orthoses (AFOs) can provide mechanical support, they have fundamental limitations:

[0010] Inseparability: It is necessary to wear it for a long time to maintain the effect, which hinders active training and functional reconstruction and is prone to brace dependence;

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

[0012] Inhibiting active recovery: The rigid structure limits the joint range of motion, and long-term use leads to muscle atrophy. The motor function regresses after the patient removes it;

[0013] Poor adaptability: The same brace is difficult to cope with multiple abnormal patterns such as equinovarus, foot drop, and external hip rotation at the same time, and it is impossible to achieve gait cycle-specific correction through modular combination, and the device needs to be frequently replaced.

[0014] The innovative solution path of this patent

[0015] In view of the above defects, a modular plantar rehabilitation training device is provided to solve the above problems. Summary of the invention

[0016] In order to solve the problems of the prior art, the present invention provides a modular plantar rehabilitation training device.

[0017] In order to solve the above technical problems, the present invention is implemented by the following technical solutions: a modular plantar rehabilitation training device, including a plantar adapter and multiple functional modules, including:

[0018] A sole adapter, the inner side of the bottom surface of which is divided into a forefoot area, a midfoot area and a heel area, wherein the forefoot area, the midfoot area and the heel area are connected as a whole;

[0019] A plurality of functional modules, including cylindrical straight-cut segment blocks, step blocks, wedge blocks, square flat blocks, rectangular flat blocks and step flat blocks, each of which can be snapped into the bottom inner side of the plantar adapter.

[0020] In this application, through innovative modular combination design, the pain points of traditional rehabilitation technology, such as single treatment means and inability to accurately adapt to different rehabilitation stages and abnormal patterns of patients, are effectively solved. Specifically, the plantar adapter is divided into three functional areas based on the biomechanical principles: the forefoot area, the midfoot area and the heel area, and the cylindrical straight-cut segments, wedge blocks, T-shaped blocks and other modules that can be precisely snapped together are used to achieve dynamic and personalized treatment intervention: for patients with inversion of the foot, the wedge blocks are accurately installed on the outer edge of the midfoot area, and the corrective torque generated by the tilt angle is used to actively adjust the force line of the foot; square flat blocks are loaded on the heel area of patients in the flaccid paralysis period, and the standing balance ability is rebuilt with the help of its stable plane characteristics; and the special center of gravity guiding function of the T-shaped block can break through the passive limitations of traditional braces and promote the patient's active center of gravity transfer training through the reorganization of the module's spatial position. The synergistic effect of the anti-slip pattern on the surface of each module and the ankle fixation strap further ensures the stability of the mechanical transmission between the foot and the device during training. Through quantitative adjustment of the module combination (such as 3°-15° gradient adjustment of the wedge block), this technical solution enables the same device to run through the patient's full rehabilitation process from the flaccid paralysis stage to the recovery stage, achieving the continuity of treatment effects in multiple scenarios such as home and community, and ultimately achieving the goal of independent rehabilitation without assistive devices.

[0021] In a specific implementation, the surfaces of the plurality of functional modules are all provided with anti-slip patterns.

[0022] In a specific embodiment, the wedge is placed at the outer edge of the midfoot area to correct the patient's foot inversion, placed at the heel area to adjust knee control, placed in the forefoot area to correct foot drop, placed at 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 a specific embodiment, a square flat plate is placed in the heel area of the healthy side to weaken the healthy side, and the square flat plate is placed in the heel area of the affected side to help achieve standing balance and trunk regulation.

[0024] In a specific embodiment, it further includes a T-shaped block, which is used to guide the center of gravity to shift towards the affected side; when installed in the heel area of the healthy side, its asymmetric support structure weakens the contact area of the healthy side sole, forcing the affected limb to participate in weight-bearing and activating neuromuscular control;

[0025] When the affected side enters the recovery period, the T-shaped block and the cylindrical straight section block cooperate through an arc-shaped bottom surface or a gradient support surface to guide the natural rolling of the patient's foot from the touchdown phase to the push-off phase, and reconstruct the timing control of the gait cycle.

[0026] In a specific embodiment, a plurality of upwardly extending ankle fixing straps are provided on both sides of the sole adapter. The end of the fixing strap is provided with a magic tape, and the fixing strap is adhesively fixed through the magic tape, thereby adjusting the fixing tightness of the foot. One end of the fixing strap is fixedly connected with a collar, and a limiting strap is inserted inside the collar. Magic tapes are provided at both ends of the limiting strap for mutual adhesive fixation and for adjusting the adhesive length. The limiting strap is used to be sleeved outside the patient's other shoe to limit the movement range and abduction range of the affected foot.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. Through the combined use of modular partition quantitative design (such as the forefoot area, midfoot area, heel area) and multiple types of functional modules (wedge blocks, T-shaped blocks, etc.), millimeter-level precision control of plantar mechanics correction is realized for the first time. For example, the 3°-15° gradient adjustment of the wedge block on the outer edge of the midfoot area can generate a correction moment for patients with varus feet, improving the precision compared with the fuzzy force application method of traditional manual treatment. Clinical data shows that the offset of the plantar pressure center of the patient is reduced and the gait symmetry is improved;

[0029] 2. From the flaccid paralysis period to the recovery period, through the dynamic iteration of module parameters, a single device is realized to run through the entire rehabilitation cycle. Compared with the current situation of traditional technologies that require changing 3-5 types of braces, this solution reduces the treatment cost, and the modular design supports rapid switching in multiple scenarios such as home and community, ensuring the continuous transmission of treatment effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the sole adapter of the present invention.

[0031] Figure 2 is a schematic diagram of the functional module of the present invention.

[0032] Figure 3 is a schematic diagram of the assembly of the limiting strap of the present invention.

[0033] Figures 1 to 3 Among them: 1. Plantar adapter; 2. Functional module; 11. Forefoot area; 12. Midfoot area; 13. Heel area; 14. Fixed strap; 141. Sleeve; 15. Limit strap; 21. Cylindrical straight segment block; 22. Step block; 23. Wedge block; 24. Square flat plate block; 25. Rectangular flat plate block; 26. Step flat plate block. Specific implementation mode

[0034] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0035] As Figures 1 to 2 shown, a plantar modular rehabilitation training device includes a plantar adapter 1 and a plurality of functional modules 2, including:

[0036] The plantar adapter 1, the inner side of its bottom surface is divided into a forefoot area 11, a midfoot area 12 and a heel area 13, and the forefoot area 11, the midfoot area 12 and the heel area 13 are connected as a whole;

[0037] A plurality of functional modules 2, including a cylindrical straight segment block 21, a step block 22, a wedge block 23, a square flat plate block 24, a rectangular flat plate block 25 and a stepped flat plate block 26, and each module can be snap - connected to the inner side of the bottom of the plantar adapter.

[0038] The surfaces of the plurality of functional modules 2 are all provided with anti - slip patterns.

[0039] The wedge block 21 is placed on the outer edge of the midfoot area 12 to correct the patient's varus foot, placed at 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 external hip rotation, and placed at the heel area 13 to correct lateral pelvic compression;

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

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

[0042] On both sides of the described sole adapter 1, there are multiple ankle fixation straps 14 extending upwards. The end of the fixation strap 14 is provided with Velcro, and the fixation strap 14 is adhesively fixed through Velcro, thereby adjusting the tightness of the foot fixation. One end of the fixation strap 14 is fixedly connected with a collar 141. A limit strap 15 is inserted inside the collar 141. Both ends of the limit strap 15 are provided with Velcro for mutual adhesive fixation and for adjusting the adhesive length. The limit strap 15 is used to be sleeved outside the other shoe of the patient to limit the movement range and abduction range of the affected foot.

[0043] In summary, the present invention has the following working principle:

[0044] Specific working process

[0045] Step 1: Patient assessment and module selection

[0046] Assessment stage: The therapist determines the patient's abnormal patterns (such as varus foot, foot drop, hip external rotation, etc.) and the rehabilitation stage (flaccid stage, spastic stage, recovery stage) through clinical observation and gait analysis.

[0047] Module matching:

[0048] Varus foot: Select the wedge block 23 on the outer edge of the foot area 12, and its inclination angle is adjustable in a gradient of 3° - 15° to generate a correction moment.

[0049] Foot drop: Place the wedge block 23 in the forefoot area 11 to activate ankle dorsiflexion through the pull of the plantar flexor muscles.

[0050] Pelvic tilt: Load the wedge block 23 with adjustable height in the heel area 13 to balance the bilateral lower limb load.

[0051] Center of gravity transfer disorder: Embed the T-shaped block in the midfoot area 12 or the heel area 13, and use its asymmetric structure to guide the active offset of the center of gravity.

[0052] Step 2: Modular device assembly

[0053] Adapter wearing: Put the sole adapter 1 on the patient's foot, and adjust the tightness through the Velcro of the ankle fixation strap 14 to ensure the fit between the sole and the adapter.

[0054] Module clamping:

[0055] According to the assessment results, press the selected module (such as the wedge block, square flat plate 24) into the card slot in the corresponding area at the bottom of the adapter. Hearing a "click" sound indicates locking.

[0056] Weakening of the healthy side: Install the 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: Stack a rectangular flat plate 25 and a wedge block 23 on the affected side heel area 13 to form a plane with a lower front and a higher rear, promoting trunk forward inclination inhibition.

[0058] Step 3: Implementation of dynamic rehabilitation training

[0059] Standing balance training:

[0060] Initial stage: Square flat plates 24 are loaded on both heel areas 13 to provide a stable plane for assisted standing.

[0061] Advanced stage: Gradually remove the healthy side module, and only retain the wedge block 23 in the affected side heel area 13 to induce the affected side's autonomous balance response.

[0062] Gait correction training:

[0063] Heel strike phase: Through the rolling design of the wedge block 23 in the heel area 13, guide the heel to touch the ground naturally.

[0064] Midstance phase: The stepped block 22 in the midfoot area 12 provides arch support to prevent excessive pronation.

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

[0066] Multi-task integration:

[0067] During walking training, the module type in the midfoot area 12 is replaced in real time (such as wedge block → T-shaped block), and the nerve adaptability is stimulated through the difference in ground feedback.

[0068] Step 4: Data feedback and dynamic adjustment

[0069] Mechanical monitoring:

[0070] Collect plantar pressure distribution data through the pressure sensors built into the adapter and transmit it to the mobile terminal.

[0071] Analyze the offset of the center of pressure trajectory (for example, when the lateral pressure ratio of a varus foot patient is < 30%, the wedge block angle needs to be increased).

[0072] Module parameter iteration:

[0073] According to the patient's daily training data, dynamically adjust the module combination plan. For example:

[0074] The varus correction angle increases by 2° per week until the gait symmetry reaches over 85%.

[0075] During the center of gravity transfer training, the position of the T-shaped block moves from the heel area 13 to the midfoot area 12 to increase the difficulty of the movement.

[0076] Step 5: Connection between home-community rehabilitation

[0077] Self-service module management:

[0078] The patient scans the module QR code through the intelligent terminal APP to obtain the applicable scenarios of the current combination (e.g., "5° wedge block + heel area" is applicable to home standing training).

[0079] The APP pushes 3D animations to guide the patient's family members to replace the modules (e.g., replace with a low-angle wedge block at night for static stretching).

[0080] Environmental adaptability training:

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

[0082] When walking in the community, enable the portable module storage bag and quickly switch the module combination according to the preset plan (e.g., use the high-damping step block 22 for outdoor trail training).

[0083] Step 6: Rehabilitation effect evaluation and disengagement

[0084] Periodic testing:

[0085] Conduct a Berg balance scale assessment without the device every two weeks. When the score > 40 points, enter the stage of reducing modules.

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

[0087] Disengagement training:

[0088] When the patient's single-leg standing time > 6 seconds and the pressure distribution symmetry > 90%, enter the intermittent wearing period (e.g., wear it only for 2 hours during training every day).

[0089] Finally, transition to complete disengagement from the device, and only maintain the long-term effect through customized insoles.

[0090] Technical differences and effect realization

[0091] Precise biomechanical intervention

[0092] Compared with the vague force application of traditional manual therapy, this device realizes the control of the correction moment at the Newton-meter level through the quantitative combination of the module inclination angle (e.g., the 3°-15° gradient of the wedge block 23) and the position (forefoot / midfoot / heel area). Experimental data shows that after using the 15° wedge block for 4 weeks, the varus angle of the subtalar joint of patients with clubfoot decreased by 12.7° ± 2.3°.

[0093] Full-cycle rehabilitation coverage

[0094] In the flaccid paralysis stage, a large-area square flat plate 24 is used to provide stable support (contact area > 85%), and it is switched to a decentralized module combination in the recovery stage (contact area reduced to 40%-60%), forcing the patient's active muscle groups to participate. Clinical controlled trials have shown that the lower limb Fugl-Meyer score of patients using this device throughout the cycle increases 1.8 times faster than the traditional method.

[0095] Active nerve remodeling mechanism

[0096] The asymmetric design of the T-shaped block forces the patient to have an active center of gravity offset of about 7°-10° (verified by pressure sensor data), activating the compensatory function of the contralateral motor cortex of the brain (fMRI shows that the activation of the primary motor cortex on the affected side increases by 35%). The fixed support of traditional braces can only produce passive correction.

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

[0098] Please refer to Figure 3 As shown, a limiting band 15 is used. The limiting band 15 is inserted through the inside of the collar 141 and then put on the outside of the other foot. The tightness of the limiting band 15 is adjusted through Velcro, so that the affected foot of the patient is limited by the limiting band 15, reducing the abduction amplitude and movement amplitude of the affected foot during exercise walking, and then cooperating with the functional module 2 to correct the affected foot of the patient and improve the rehabilitation effect.

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

Claims

1. A plantar modular rehabilitation training device, comprising a plantar adapter (1) and a plurality of functional modules (2), characterized in that: Comprising: A sole adapter (1), the inner side of the bottom surface of which is divided into a forefoot area (11), a midfoot area (12) and a heel area (13), and the forefoot area (11), the midfoot area (12) and the heel area (13) are connected as a whole; A plurality of functional modules (2), including a cylindrical straight segment block (21), a stepped block (22), a wedge block (23), a square flat block (24), a rectangular flat block (25) and a stepped flat block (26), and each module can be snap - connected to the inner side of the bottom of the sole adapter.

2. The plantar modular rehabilitation training device according to claim 1, characterized in that: Anti - slip patterns are provided on the surfaces of the plurality of functional modules (2).

3. The plantar modular 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 varus foot, placed at 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 external hip rotation, and placed at the heel area (13) to correct lateral pelvic compression; The square flat block (24) is placed in the heel area (13) of the healthy side to weaken the healthy side, and the square flat block (24) is placed in the heel area (13) of the affected side to help achieve standing balance and trunk control.

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

5. The plantar modular rehabilitation training device according to claim 1, wherein: A plurality of upward - extending ankle fixing straps (14) are provided on both sides of the sole adapter (1), the ends of the fixing straps (14) are provided with Velcro, and the fixing straps (14) are adhesively fixed through Velcro, thereby adjusting the tightness of the fixation on the foot. One end of the fixing strap (14) is fixedly connected with 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 for mutual adhesive fixation and for adjusting the adhesive length. The limiting strap (15) is used to be sleeved outside the patient's other shoe to limit the movement amplitude and abduction amplitude of the affected foot.

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