Modularized orthopedic insole with embedded soft base body

Abstract

The invention discloses a soft base body embedded type modular orthopedic insole, and relates to the field of foot correction, the modular orthopedic insole is configured to be a sandwich composite supporting structure matched with the shape of an individual foot arch, and the sandwich composite supporting structure comprises an upper layer base body, a middle layer base body and a lower layer base body which are compositely connected from top to bottom; the hardness of the upper-layer base body, the hardness of the middle-layer base body and the hardness of the lower-layer base body are in progressive enhanced gradient distribution in the vertical direction, the shore hardness of the upper-layer base body ranges from 30 A to 50 A, the shore hardness of the middle-layer base body ranges from 45 A to 55 A, and the shore hardness of the lower-layer base body ranges from 70 A to 90 A; the three layers of substrates are integrally compounded and molded through a hot pressing process to form an integral structure with continuous rigidity change, so that smooth transition of mechanical transmission and high efficiency of energy feedback are ensured; according to the orthopedic insole, through the collaborative design of the sandwich composite supporting structure and the modular orthopedic component, dynamic adaptation and precise adjustment of foot biomechanical correction are achieved, and stability is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of foot orthosis, in particular, a soft matrix embedded modular orthopedic insole. BACKGROUND

[0002] In the biomechanical system of human upright walking, the foot as the core interface of human body contacting with the ground, bears the key functions of supporting body weight, buffering impact, transmitting power and maintaining gait stability. Its through the complex bone, muscle, ligament structure forms a natural mechanical transmission network, any foot posture abnormalities (such as flat feet, high arch feet, internal and external turning, etc.) will trigger compensatory pathological changes of knee joint, hip joint and even spine through the movement chain, showing chronic pain, motor dysfunction and even degenerative diseases. Therefore, through external orthotic devices (such as insoles), adjusting the foot pressure distribution and foot posture, has become an important intervention means in the field of clinical rehabilitation and sports protection.

[0003] The current orthopedic insole technology has been developed for many years, but there are still the following problems:

[0004] Firstly, the overall customized product (such as EVA molded insole, 3D printed insole) adopts a static design concept, and its structural parameters (such as hardness, support height) are fixed after manufacturing and cannot be adjusted to meet the dynamic adjustment needs of patients during rehabilitation.

[0005] Secondly, although the local adjustable design allows for fine-tuning of parameters, it relies on destructive operations (such as removing excess material by destroying the adhesive structure or heating and reshaping), which takes a long time to adjust (more than 30 minutes for a single adjustment by a professional technician), and the adjustment accuracy is not accurate, with human error, making it difficult to meet the adjustment needs of patients in daily use.

[0006] Thirdly, intelligent monitoring products (such as piezoelectric sensing insoles, flexible electrode array insoles) only focus on foot pressure data collection, and although they can generate pressure distribution maps, they lack an intelligent linkage mechanism with mechanical intervention modules, leading to a disconnect between monitoring and treatment.

[0007] Specifically, traditional EVA molded insoles are formed by high-temperature molding, and their hardness and shape completely depend on the mold design. If the foot arch collapse worsens or the heel pain shifts after the patient uses the insole, a new insole needs to be custom-made, which is costly and time-consuming. Although 3D printed insoles can achieve complex structure printing, their materials (such as TPU powder or photosensitive resin) are generally hard, with insufficient cushioning performance, long printing cycle, poor precision, and unstable product quality. If adjustment is needed after use, the insole needs to be reprinted, making it difficult to be widely applied. Although the local adjustable insole allows adjustment by pasting different height pads, the connection between the pad and the base only relies on the adhesive friction force, which is easy to shift during walking, and the original pad needs to be removed with a tool during adjustment, which may damage the integrity of the base structure.

[0008] Therefore, the conventional orthopedic insole technology cannot meet the modern clinical rehabilitation and personalized orthopedic requirements due to inherent defects such as static solidification design and lack of adjustment capability, and the existing technology urgently needs an orthopedic insole with dynamic adjustment, precise fitting and structural stability. SUMMARY

[0009] The purpose of the present application is to provide a soft matrix embedded modular orthopedic insole to solve the problems of static non-adjustable, complex local adjustment operation and low precision of the conventional orthopedic insole in the prior art.

[0010] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a soft matrix embedded modular orthopedic insole, the modular orthopedic insole is configured as a sandwich composite support structure to adapt to the individual foot arch shape, the sandwich composite support structure includes an upper layer matrix, a middle layer matrix and a lower layer matrix which are connected in a composite manner from top to bottom, the hardness of the upper layer matrix, the middle layer matrix and the lower layer matrix presents a progressive enhancement gradient distribution along the vertical direction, wherein the Shore hardness of the upper layer matrix is 30A-50A, the Shore hardness of the middle layer matrix is 45-55A, and the Shore hardness of the lower layer matrix is 70A-90A; the three layer matrices are integrally formed by a hot pressing process to form an overall structure with continuous stiffness change, ensuring smooth transition of mechanical transmission and high efficiency of energy feedback.

[0011] Preferably, the upper layer matrix is configured as a soft cushion layer in contact with the foot bottom, and the surface of the upper layer matrix is provided with a microporous texture structure for enhancing air permeability and anti-skid, the microporous texture structure is irregularly distributed in a polygonal shape, forming a bidirectional air permeation channel while increasing the contact friction coefficient, and significantly improving the air permeation efficiency of the foot microenvironment.

[0012] Preferably, the middle layer matrix is configured as an integrated layer for bearing orthopedic function, the middle layer matrix is made of polyurethane foam material or high-density EVA, and the middle layer matrix is provided with flat hollow clamping grooves corresponding to the metatarsophalangeal area, transverse arch, forefoot and hind foot heel area of the human foot. Each hollow clamping groove is designed with different structures according to the biomechanical characteristics of the corresponding foot area, to ensure the precise fit and force transmission of the orthopedic module and the foot anatomy.

[0013] Preferably, the lower layer matrix is configured as a hard substrate for providing rigid support and motion control, and the lower layer matrix is made of thermoplastic polyurethane elastomer with high rigidity and fatigue resistance.

[0014] Preferably, the side wall of the flat hollow clamping groove is provided with a anti-extrusion flange, the anti-extrusion flange is designed with a 15-25° progressive slope to reduce the assembly resistance and ensure the locking strength; the flat hollow clamping groove includes a metatarsophalangeal adjustment clamping groove, a transverse arch adjustment clamping groove, a forefoot adjustment clamping groove and a hind foot adjustment clamping groove.

[0015] Preferably, an orthopedic module is set inside the flat hollow card slot. The orthopedic module is made of TPU or glass fiber reinforced nylon material. The edge of the orthopedic module is provided with a silicone edging to reduce friction. The silicone edging is made of medical grade silicone material and is integrally injection molded. While ensuring a smooth transition of the edge, it effectively prevents abnormal noise and wear between the module and the card slot.

[0016] Preferably, the orthopedic module includes planar support strips, angle support strips, and transverse arch support strips adapted to different orthopedic needs. These support strips are connected to the flat, hollow slot via snap-fit, insertion, magnetic attraction, or interference fit. Snap-fit ​​is achieved by the interlocking of elastic hooks on the module's sidewall with the flange on the inner wall of the slot; insertion is achieved by the guide taper at the bottom of the module engaging with a baffle inside the slot; magnetic attraction is achieved by the attraction force generated by an embedded permanent magnet and a magnetically conductive sheet; and interference fit is achieved by the press-fit fixation through the fit tolerance between the module's outer dimensions and the slot's inner cavity.

[0017] Preferably, the planar support strip is a flat cuboid used to achieve local height adjustment and support of the foot, the angled support strip is a flat inclined surface used to achieve local angle adjustment of the foot, and the transverse arch support strip is a rounded convex structure used to support the transverse arch of the foot. The three types of support strips can have various specifications depending on their height and angle. For example, the planar support strip is preferably 2mm or 4mm high, the angled support strip is preferably 2° or 4°, and the transverse arch support strip is preferably 8mm in base radius and 8mm in height.

[0018] Preferably, the planar support strip is configured within the metatarsophalangeal adjustment slot and the hindfoot adjustment slot to achieve local height adjustment and support in the metatarsophalangeal region or hindfoot; the angular support strip is configured within the forefoot adjustment slot to achieve local angle adjustment in the forefoot; and the transverse arch support strip is configured within the transverse arch adjustment slot to provide support for the transverse arch of the foot. The orthotic modules can be customized according to individual foot biomechanical characteristics to compensate for foot stress defects. Furthermore, the orthotic modules can be added, removed, or supplemented as needed, making operation convenient and reusable, effectively meeting practical application requirements. Through modular combination, personalized orthotic solutions can be provided for different foot deformities such as flat feet, high arches, inversion feet, and eversion feet, significantly improving orthotic accuracy and adaptability. In practical applications, clinical orthotists can accurately determine the patient's foot defects through physical examination, gait analysis, and plantar pressure testing, and accordingly select the appropriate type, specification, and quantity of orthotic modules for combination and configuration. Patients can also flexibly adjust the module combination according to their own feelings and the stage of orthodontic progress during daily use, so as to ensure that the orthodontic process always keeps dynamically adapted to changes in foot condition.

[0019] Compared with existing technologies, the present invention has the following beneficial effects: Through the synergistic design of a sandwich composite support structure and modular orthotic components, the present invention achieves dynamic adaptation, precise adjustment, and improved stability in foot biomechanical correction. Specific technical effects include the following:

[0020] 1. Through the progressive hardness enhancement structure of the upper, middle and lower substrates, a synergistic function of comfortable cushioning, mechanical transition and stable support is formed. It not only disperses the pressure on the sole of the foot and improves wearing comfort, but also ensures the efficient transmission of corrective force and the overall structural stability of the insole. This solves the defects of traditional custom insoles with single hardness and inability to take into account both cushioning and support.

[0021] 2. The middle layer of the substrate is precisely set with flat hollow slots corresponding to the metatarsophalangeal region, transverse arch, forefoot and heel area. By embedding standardized orthopedic modules such as flat support strips (height adjustment), angle support strips (angle adjustment), and transverse arch support strips (transverse arch directional support), it can achieve precise mechanical compensation of local height, angle and specific areas of the sole for different foot deformities such as flat feet, high arches, and pronation / extension. This solves the limitations of traditional locally adjustable insoles, which have low adjustment accuracy and only support coarse pad bonding.

[0022] 3. The orthopedic module can be flexibly added, removed, or replaced according to the patient's recovery stage or daily feelings, without the need for factory customization or destructive operations. Each adjustment is quick and cost-effective. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the sandwich composite support structure in Embodiment 1 of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of Embodiment 4 of the present invention;

[0028] Figure 5 This is a structural schematic diagram of Embodiment 5 of the present invention.

[0029] In the picture:

[0030] 1. Upper substrate; 2. Middle substrate; 201. Metatarsophalangeal adjustment slot; 202. Transverse arch adjustment slot; 203. Forefoot adjustment slot; 204. Hindfoot adjustment slot; 205. Planar support strip; 206. Angular support strip; 207. Transverse arch support strip; 3. Lower substrate. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] As attached Figure 1 As shown:

[0033] Example 1: This invention provides a soft-matrix embedded modular orthotic insole. The modular orthotic insole is configured as a sandwich composite support structure adapted to the individual's arch shape. The sandwich composite support structure includes an upper matrix 1, a middle matrix 2, and a lower matrix 3 connected from top to bottom. The hardness of the upper matrix 1, the middle matrix 2, and the lower matrix 3 is distributed in a progressively increasing gradient along the vertical direction. The upper matrix 1 has a Shore hardness of 30A–50A, the middle matrix 2 has a Shore hardness of 45–55A, and the lower matrix 3 has a Shore hardness of 70A–90A. The three matrix layers are integrally molded by hot pressing to form an overall structure with continuous stiffness variation, ensuring a smooth transition of mechanical force transmission and efficient energy feedback.

[0034] 1. In one embodiment of the present invention, the upper substrate 1 is configured as a soft cushioning layer in contact with the sole of the foot. The surface of the upper substrate 1 is provided with a microporous texture structure for enhancing breathability and anti-slip properties. The microporous texture structure is irregularly polygonal in distribution, which increases the contact friction coefficient and forms a two-way breathable channel, significantly improving the breathability efficiency of the foot microenvironment.

[0035] 2. In one embodiment of the present invention, the middle substrate 2 is configured as an integrated layer that carries the orthopedic function, and the middle substrate 2 is made of polyurethane foam material or high-density EVA.

[0036] 3. In one embodiment of the present invention, the lower substrate 3 is configured as a rigid substrate that provides rigid support and motion control, and the lower substrate 3 is made of a thermoplastic polyurethane elastomer with high rigidity and fatigue resistance.

[0037] As attached Figure 1 Appendix Figure 2 As shown:

[0038] Example 2: This invention provides a soft-substrate embedded modular orthotic insole. The modular orthotic insole is configured as a sandwich composite support structure adapted to the individual's arch shape. The sandwich composite support structure includes an upper substrate 1, a middle substrate 2, and a lower substrate 3 connected from top to bottom. The middle substrate 2 is provided with a flat hollow slot corresponding to the metatarsophalangeal region of the human foot. The side wall of the flat hollow slot is provided with an anti-slip flange. The anti-slip flange adopts a 15-25° progressive slope design to reduce assembly resistance and ensure locking strength. The flat hollow slot is a metatarsophalangeal adjustment slot 201. An orthotic module is set in the metatarsophalangeal adjustment slot 201. The orthotic module is made of TPU or glass fiber reinforced nylon material. The edge of the orthotic module is provided with a silicone edging to reduce friction. The silicone edging is integrally injection molded from medical-grade silicone material, which effectively prevents abnormal noise and wear between the module and the slot while ensuring a smooth transition of the edge.

[0039] 1. In one embodiment of the present invention, the orthopedic module is a planar support strip 205, which is connected to the flat hollow card slot by snap-fit, insertion, magnetic attraction, or interference fit. Snap-fit ​​is achieved by the elastic hooks on the side wall of the module engaging with the flange on the inner wall of the card slot; insertion is achieved by the guide taper at the bottom of the module engaging with the baffle inside the card slot; magnetic attraction is achieved by the adsorption force generated by the embedded permanent magnet and the magnetic conductive sheet; interference fit is achieved by the press-fit fixation through the fit tolerance between the outer dimensions of the module and the inner cavity of the card slot.

[0040] 2. In one embodiment of the present invention, the planar support strip 205 is a flat cuboid used to realize local height adjustment and support of the sole (toe-toe area).

[0041] The difference between Example 2 and Example 1 is that Example 2 incorporates a flat, hollow slot (metatarsoprs adjustment slot 201) with an anti-slip flange in the middle substrate 2 corresponding to the metatarsophalangeal region of the foot. A planar support strip 205, which can be connected in various ways, is embedded within this slot. This planar support strip 205 is a flat cuboid used to achieve localized height adjustment and support for the metatarsophalangeal region of the foot. This design allows the insole to provide precise height adjustment and support for the metatarsophalangeal region, solving the problem of traditional insoles' inability to provide precise mechanical intervention for localized areas of the foot. This significantly improves the insole's adaptability and corrective accuracy for different foot mechanical defects.

[0042] It is worth noting that: in the appendix Figure 2 In the middle, there are two metatarsophalangeal adjustment slots 201. In actual use, either flat support bar 205 can be installed according to the patient's actual needs to achieve targeted height compensation and support, effectively adjust the abnormal pressure distribution in the metatarsophalangeal area, and improve the foot function during walking.

[0043] As attached Figure 1 AppendixFigure 3 As shown:

[0044] Example 3: This invention provides a soft-substrate embedded modular orthotic insole. The modular orthotic insole is configured as a sandwich composite support structure adapted to the individual's arch shape. The sandwich composite support structure includes an upper substrate 1, a middle substrate 2, and a lower substrate 3 connected from top to bottom. The middle substrate 2 is provided with a flat hollow groove corresponding to the transverse arch area of ​​the human foot. The side wall of the flat hollow groove is provided with an anti-slip flange. The anti-slip flange adopts a 15-25° progressive slope design to reduce assembly resistance and ensure locking strength. The flat hollow groove is a transverse arch adjustment groove 202.

[0045] 1. In one embodiment of the present invention, an orthopedic module is provided in a flat hollow card slot. The orthopedic module is made of TPU or glass fiber reinforced nylon material. The edge of the orthopedic module is provided with a silicone edging to reduce friction. The silicone edging is integrally injection molded using medical grade silicone material, which effectively prevents abnormal noise and wear between the module and the card slot while ensuring a smooth transition of the edge.

[0046] 2. In one embodiment of the present invention, the orthotic module is a transverse arch support strip 207. The transverse arch support strip 207 is disposed within the transverse arch adjustment slot 202 and is used to support the transverse arch of the foot. The transverse arch support strip 207 is connected to the flat hollow slot by snap-fit, insertion, magnetic attraction, or interference fit. The transverse arch support strip 207 is a rounded convex structure used to support the transverse arch of the foot. The three types of support strips can have various specifications according to their height and angle. For example, the planar support strip is preferably 2mm or 4mm high, the angled support strip is preferably 2° or 4°, and the transverse arch support strip is preferably 8mm in base radius and 8mm in height.

[0047] The difference between Example 3 and Example 1 is that Example 3 incorporates a flat, hollow slot (cross-arch adjustment slot 202) with an anti-slip flange in the middle layer substrate 2 corresponding to the transverse arch area of ​​the human foot. An orthotic module (cross-arch support strip 207) is embedded within this slot. The orthotic module engages with the cross-arch adjustment slot 202 via snap-fit, plug-in, magnetic connection, or interference fit to provide support for the transverse arch area. This design allows the insole to provide precise directional support for the transverse arch area, solving the problem that traditional insoles cannot provide specialized mechanical correction for the transverse arch area. This significantly improves the insole's adaptability and correction accuracy for foot mechanical defects such as transverse arch collapse.

[0048] As attached Figure 1 Appendix Figure 4 As shown:

[0049] Example 4: This invention provides a soft-substrate embedded modular orthotic insole. The modular orthotic insole is configured as a sandwich composite support structure adapted to the individual's arch shape. The sandwich composite support structure includes an upper substrate 1, a middle substrate 2, and a lower substrate 3 connected from top to bottom. The middle substrate 2 is provided with a flat hollow groove corresponding to the forefoot area of ​​the human foot. The side wall of the flat hollow groove is provided with an anti-slip flange. The anti-slip flange adopts a 15-25° progressive slope design to reduce assembly resistance and ensure locking strength. The flat hollow groove is a forefoot adjustment groove 203.

[0050] 1. In one embodiment of the present invention, an orthopedic module is provided in a flat hollow card slot, and the orthopedic module is made of TPU or glass fiber reinforced nylon material.

[0051] 2. In one embodiment of the present invention, the orthotic module is an angle support strip 206, which is connected to the flat hollow slot (forefoot adjustment slot 203) by snap-fit, insertion, magnetic attraction, or interference fit. The angle support strip 206 is a flat inclined surface used to realize local (forefoot) angle adjustment of the sole.

[0052] The difference between Example 4 and Example 1 is that Example 4 incorporates a flat, hollow slot (forefoot adjustment slot 203) with an anti-slip flange in the middle substrate 2 corresponding to the forefoot area of ​​the human foot. The orthotic module embedded within the slot is an angle support strip 206, made of TPU or glass fiber reinforced nylon. This angle support strip 206 is a flat, inclined surface used to achieve local (forefoot) angle adjustment of the sole. This design allows the insole to precisely adjust the angle of the forefoot area, solving the problem that traditional insoles cannot provide targeted mechanical intervention for forefoot angles. This significantly improves the insole's adaptability and correction accuracy for forefoot mechanical abnormalities (such as excessive inward or outward pronation).

[0053] As attached Figure 1 Appendix Figure 5 As shown:

[0054] Example 5: This invention provides a soft-substrate embedded modular orthotic insole. The modular orthotic insole is configured as a sandwich composite support structure adapted to the individual's arch shape. The sandwich composite support structure includes an upper substrate 1, a middle substrate 2, and a lower substrate 3 connected from top to bottom. The middle substrate 2 is provided with a flat hollow groove corresponding to the heel area of ​​the human foot. The side wall of the flat hollow groove is provided with an anti-slip flange. The anti-slip flange adopts a 15-25° progressive slope design to reduce assembly resistance and ensure locking strength. The flat hollow groove is a rearfoot adjustment groove 204.

[0055] 1. In one embodiment of the present invention, an orthopedic module is provided in a flat hollow card slot, and the orthopedic module is made of TPU or glass fiber reinforced nylon material.

[0056] 2. In one embodiment of the present invention, the orthotic module is a planar support strip 205, which is connected to the flat hollow slot (hindfoot adjustment slot 204) by snap-fit, insertion, magnetic attraction, or interference fit. The planar support strip 205 is used to realize local height adjustment and support of the hindfoot.

[0057] The difference between Example 5 and Example 1 is that Example 5 incorporates a flat, hollow slot (hindfoot adjustment slot 204) with an anti-slip flange in the middle layer substrate 2 corresponding to the heel area of ​​the human foot. The orthotic module embedded within the slot is a flat support strip 205, made of TPU or glass fiber reinforced nylon. The flat support strip 205 is used to achieve localized height adjustment and support for the heel area. This design allows the insole to provide precise height adjustment and support for the heel area, solving the problem that traditional insoles cannot provide targeted mechanical intervention for the heel, significantly improving the insole's adaptability and corrective accuracy for heel mechanical abnormalities (such as heel pain and insufficient support).

[0058] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A soft-matrix embedded modular orthotic insole, characterized in that: The modular orthotic insole is configured as a sandwich composite support structure adapted to the individual arch shape. The sandwich composite support structure includes an upper substrate (1), a middle substrate (2) and a lower substrate (3) that are connected from top to bottom. The hardness of the upper substrate (1), the middle substrate (2) and the lower substrate (3) is distributed in a progressively enhanced gradient along the vertical direction. The upper substrate (1) is configured as a soft cushioning layer that contacts the sole of the foot, and the surface of the upper substrate (1) is provided with a microporous texture structure to enhance breathability and slip resistance; The middle layer substrate (2) is configured as an integrated layer that carries the orthopedic function. The middle layer substrate (2) is provided with flat hollow slots corresponding to the metatarsophalangeal region, transverse arch, forefoot and heel region of the human foot. The lower substrate (3) is configured as a rigid substrate that provides rigid support and motion control.

2. The soft matrix embedded modular orthotic insole according to claim 1, characterized in that: The lower substrate (3) is made of thermoplastic polyurethane elastomer with high rigidity and fatigue resistance.

3. The soft matrix embedded modular orthotic insole according to claim 1, characterized in that: The sidewall of the flat hollow card slot is provided with an anti-detachment flange. The flat hollow card slot includes a metatarsophalangeal adjustment card slot (201), a transverse arch adjustment card slot (202), a forefoot adjustment card slot (203), and a hindfoot adjustment card slot (204).

4. The soft matrix embedded modular orthotic insole according to claim 3, characterized in that: The flat, hollow slot contains an orthopedic module, which is made of TPU or glass fiber reinforced nylon.

5. A soft-matrix embedded modular orthotic insole according to claim 4, characterized in that: The orthopedic module includes a planar support strip (205), an angle support strip (206), and a transverse arch support strip (207) adapted to different orthopedic needs. The planar support strip (205), the angle support strip (206), and the transverse arch support strip (207) are connected to the flat hollow card slot by snap-fit, plug-in, magnetic attraction, or interference fit.

6. A soft-matrix embedded modular orthotic insole according to claim 5, characterized in that: The planar support strip (205) is a flat cuboid used to achieve local height adjustment and support of the sole of the foot, the angle support strip (206) is a flat inclined body used to achieve local angle adjustment of the sole of the foot, and the transverse arch support strip (207) is a round convex structure used to achieve support of the transverse arch of the foot.

7. A soft-matrix embedded modular orthotic insole according to claim 5, characterized in that: The planar support strip (205) is disposed in the metatarsophalangeal adjustment slot (201) and the hindfoot adjustment slot (204) and is used to realize the local height adjustment and support of the metatarsophalangeal area or the hindfoot. The angle support strip (206) is disposed in the forefoot adjustment slot (203) and is used to realize the local angle adjustment of the forefoot. The transverse arch support strip (207) is disposed in the transverse arch adjustment slot (202) and is used to realize the support of the transverse arch of the foot.

Images