Removable, switchable inversion / eversion correction insert

Abstract

Removable, switchable inversion / eversion correction insole, characterized in that it comprises an insole body (1) wherein magnetic matrices (2) and magnetorheological elastomers (3) are provided on the upper surface of the insole body (1), wherein a damping plate (4) and a hook and loop fastener (6) are arranged at the lower end of the insole body (1) and a correction pad (5) is detachably connected to the lower end of the insole body (1) via the hook and loop fastener (6).

Description

Technical field

[0001] The present utility model relates to the field of acupuncture point technology and specifically to a removable, switchable inversion / eversion correction insert. State of the art

[0002] In the field of foot health, conventional orthotic insoles have long been considered a standard solution for improving arch support and correcting gait abnormalities. However, the underlying static design principle has significant limitations, making it difficult to meet the dynamic requirements of foot biomechanics. Firstly, conventional insoles cannot adapt in real time to the dynamic changes in the degree of inversion or eversion of the foot. Traditional orthotic structures, such as fixed-height arch supports or rigid heel counters, are manufactured based on a predefined static model and only offer support for specific degrees of arch inversion or calcaneal deviation.During actual walking, however, the degree of inversion (pronation) or eversion (supination) of the foot constantly fluctuates due to fatigue, increased stress, uneven terrain, or varying movement intensities. A rigid support structure cannot flexibly adjust the support force or angle, leading to insufficient support or excessive correction during the critical phases of the gait cycle. This not only reduces comfort but also weakens the stability and reliability of the orthotic effect.

[0003] Furthermore, a static physical orthotic design can easily cause compensatory muscle damage. Traditional insoles, using hard materials, forcefully fix the foot in a theoretically neutral position, thus preventing the foot muscles from performing their dynamic stabilization function required for the gait cycle. With long-term use of such insoles, key muscle groups such as the plantar fascia and the tibialis posterior muscle gradually weaken due to disuse caused by the persistent mechanical relief. This forces the lower leg, knee joint, and even the hip muscles to exert compensatory force to maintain balance.This compensatory mechanism of the muscular system impairs the coordination of the gait chain of the lower extremities, cumulatively increases the risk of sports injuries such as ankle sprains, tibial stress syndrome, knee problems or lumbar pain, and thus runs counter to the original purpose of the "correction".

[0004] Furthermore, conventional solutions with fixed magnets disrupt the natural transmission within the gait chain. Some functional insoles integrate permanent magnets to promote blood circulation or alleviate pain; however, the magnet positions are usually fixed at specific points on the heel or arch based on experience. Human gait is a precise biomechanical chain encompassing the coupled movement of the foot, ankle, knee, hip, and spine (the so-called gait chain). Any rigid intervention in any of these links can disrupt the overall harmony. A hard support base for attaching magnets, as well as the corresponding magnetic field points, can impede the elastic deformation of the arch during the propulsive phase of gait, restrict the range of motion of the metatarsophalangeal joints, and forcibly alter the distribution of plantar pressure.Such a non-physiological intervention can not only reduce the efficiency of gait and increase energy consumption, but also transmit abnormal forces upwards via the gait chain, thus causing adaptive damage to the peripheral joints.

[0005] In summary, existing shoe insole technology is limited by three key shortcomings – static orthopedic structures, inhibition of muscle function and impairment of the gait chain – making a removable, switchable inversion / eversion correction insole urgently necessary. Content of the present utility model: Technical problem to be solved

[0006] To overcome the aforementioned disadvantages of the prior art, the present utility model provides a removable, switchable inversion / eversion correction insole that effectively solves the problem that existing correction insoles, due to their static, rigid design, cannot dynamically react to changes in the inversion and eversion of the foot, leading to compensatory muscle damage, as well as the problem of a fixed magnet arrangement that disrupts the natural biomechanical transmission in the gait chain. Technical solution

[0007] To solve the aforementioned problem, the present utility model is implemented by the following technical solution: The present utility model provides a removable, switchable inversion / eversion correction insole comprising an insole body, wherein magnetic matrices and magnetorheological elastomers are provided on the upper surface of the insole body, wherein a damping plate and a hook and loop fastener are arranged at the lower end of the insole body, and wherein a correction pad is detachably connected to the lower end of the insole body via the hook and loop fastener.

[0008] Furthermore, it includes interchangeable N / S pole magnets (diameter 6-10 mm, surface magnetic field strength 50-200 mT), whereby the ratio of the magnetic density between the outside (inversion correction zone) and the inside (eversion correction zone) is dynamically adjusted according to the data of a foot pressure sensor.

[0009] Furthermore, the insole body features a composite structure made of shape memory alloy and magnetostrictive material, forming a bionic dynamic arch, which allows for self-adaptive changes in arch curvature during the gait cycle.

[0010] Furthermore, the magnetorheological elastomers arranged on the top side of the insert body adjust its stiffness according to the magnetic field strength.

[0011] Furthermore, the magnetic matrix suppresses the abnormal inversion moment of the foot through the Lorentz force. Beneficial effects

[0012] The technical solution provided by the present utility model offers the following advantages compared to the known prior art: The present utility model comprises an insole body and several magnetic matrices arranged on the upper surface of the insole body. The magnetic matrices are spherical and each corresponds to a specific acupuncture point on the sole of the foot. In addition, several magnetorheological elastomers are provided on the insole body to support the arch of the foot. The magnetic matrices and magnetorheological elastomers massage the foot, thereby promoting health, effectively relieving fatigue, preventing ankle sprains during sports activities, and increasing mobility and stability. Brief description of the characters

[0013] To more clearly explain the embodiments of the present utility model or prior art technical solutions, the drawings required to describe these embodiments or the prior art are briefly presented below. Obviously, the drawings mentioned below are merely some embodiments of the present utility model; a person skilled in the art can create further drawings based on these without any creative effort. Fig. Figure 1 is a schematic representation of the front side structure of the insert body of the present utility model. Fig. Figure 2 is a schematic representation of the substructure of the insert body of the present utility model. Fig. Figure 3 shows a schematic representation of the structure of the correction insert according to the present utility model. Detailed descriptions

[0014] To clarify the objective, the technical solution, and the advantages of the embodiments of this utility model, the technical solutions of the embodiments are described clearly and comprehensively below with reference to the accompanying drawings. It is evident that the described embodiments represent only a portion of the embodiments of this utility model and not all of them. Based on the embodiments disclosed in this utility model, all further embodiments that a person skilled in the art in this field obtains without inventive step fall within the scope of protection of this utility model.

[0015] The present utility model is explained in more detail below with reference to exemplary embodiments. Example implementation:

[0016] Please note the Fig. 1-3. The present utility model provides, as a technical solution, a removable, switchable inversion / eversion correction insert: Referring to Fig. The device comprises an insole body 1, on the upper surface of which magnetic matrices 2 and magnetorheological elastomers 3 are arranged. The insole body 1 has a composite structure of shape-memory alloy and magnetostrictive material and forms a bionic dynamic arch support that enables self-adaptive changes in arch curvature during the gait cycle. The magnetorheological elastomers 3 arranged on the upper surface of the insole body 1 adjust its stiffness according to the magnetic field strength. The magnetic matrix 2 comprises interchangeable north / south pole magnets with a diameter of 6–10 mm and a surface magnetic field strength of 50–200 mT. The ratio of the magnetic density between the outer surface (inversion correction zone) and the inner surface (eversion correction zone) is dynamically adjusted according to data from a foot pressure sensor.The magnetic matrix 2 suppresses the abnormal inversion moment of the foot through the Lorentz force.

[0017] As in Fig. As shown in Figure 2, a damping plate 4 and a Velcro fastener 6 are arranged at the lower end of the insole body 1.

[0018] As in Fig. 2 and Fig. As shown in Figure 3, a corrective insert 5 is detachably connected to the lower end of the insole body 1 via a Velcro fastener 6.

[0019] The magnets of the magnet matrix 2 are embedded using ultrasonic welding technology, whereby neodymium-iron-boron magnets with nickel coating as corrosion protection are inserted into the TPU base material; the permissible magnet spacing error is ≤ 0.2 mm.

[0020] The plantar pressure distribution is detected via a flexible piezoelectric sensor in the form of a PVDF film and, after evaluation by the MCU, the stepwise switching of the electromagnetic matrix is ​​controlled.

[0021] The present utility model comprises an insole body 1 and several magnetic matrices 2 arranged on the surface of the insole body 1. The magnets of the magnetic matrix 2 are spherical and each corresponds to different acupuncture points on the sole of the foot. In addition, several magnetorheological elastomers 3 are provided on the insole body 1 to support the foot. The magnetic matrix 2 and the magnetorheological elastomers 3 enable a foot massage, have a health-promoting wellness effect, effectively relieve fatigue, prevent ankle sprains during sports activities, and increase mobility and stability.

[0022] The interaction of the magnetic matrix 2 and the bionic arch structure enables real-time intervention for gait disorders. Real-time coupling of the magnetic field gradient distribution with changes in foot pressure resolves the conflicting biomechanical requirements, as a single orthopedic structure cannot simultaneously address both inversion (loading on the lateral side) and eversion (sinking of the medial side).

[0023] The foregoing embodiments serve solely to illustrate the technical solution of the present utility model and do not constitute a limitation thereof. Although the present utility model has been described in detail with reference to the foregoing embodiments, it is apparent to those skilled in the art that modifications to the technical solutions described in the above embodiments or an equivalent replacement of individual technical features are nevertheless possible. These modifications or replacements do not result in the essence of the corresponding technical solutions falling outside the scope of protection of the technical solutions of the respective embodiments of the present utility model. Reference symbol list 1 insole body 2 Magnetic matrix 3 Magnetorheological elastomer 4 damping plate 5 Correction insert 6 Velcro fasteners.

Claims

[1] Removable, switchable inversion / eversion correction insert, characterized by , that it comprises an insole body (1) wherein magnetic matrices (2) and magnetorheological elastomers (3) are provided on the upper surface of the insole body (1), wherein a damping plate (4) and a hook and loop fastener (6) are arranged at the lower end of the insole body (1) and a correction pad (5) is detachably connected at the lower end of the insole body (1) via the hook and loop fastener (6). [2] Removable, switchable inversion / eversion correction insert according to claim 1, characterized by , that the magnet matrix (2) comprises interchangeable N / S pole magnets (diameter 6-10 mm, surface magnetic field strength 50-200 mT) wherein the ratio of the magnetic density between the outside (inversion correction zone) and the inside (eversion correction zone) is dynamically adjusted according to the data of a foot pressure sensor. [3] Removable, switchable inversion / eversion correction insert according to claim 1, characterized by , that the insole body (1) uses a composite structure of shape memory alloy and magnetostrictive material, forming a bionic dynamic arch, enabling a self-adaptive change in arch curvature during the gait cycle. [4] Removable, switchable inversion / eversion correction insert according to claim 1, characterized by , that the magnetorheological elastomers (3) arranged on the top side of the insert body (1) adjust its stiffness according to the magnetic field strength. [5] The removable, switchable inversion / eversion correction insert according to claim 1, characterized by , that the magnetic matrix (2) suppresses the abnormal inversion moment of the foot through the Lorentz force.

Images