Corrective insole
The corrective insole addresses non-uniform pressure distribution by using a variable thickness base with smooth transitions and embedded magnets, improving comfort and reducing fatigue through even pressure distribution.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- OBSHCHESTVO S OGRANICHENNOJ OTVETABTVENNOSTJU GARMONIJA
- Filing Date
- 2025-08-19
- Publication Date
- 2026-06-25
AI Technical Summary
Existing insoles suffer from abrupt transitions between sections, leading to non-uniform pressure distribution and increased risk of point loads, which reduces comfort and increases the likelihood of foot pain and injuries.
A corrective insole with a variable thickness base, featuring rounded convex massage points, recesses with through holes, and embedded magnets, designed with specific bending radii and angles to ensure smooth transitions and even pressure distribution.
The insole achieves a 4% more uniform pressure distribution across the foot surface, reducing point loads and fatigue, and enhancing comfort and support, particularly during prolonged use.
Smart Images
Figure RU2025050244_25062026_PF_FP_ABST
Abstract
Description
[0001] CORRECTIVE INSOLE
[0002] DESCRIPTION
[0003] The utility model relates to the field of massage device technology, namely to a type of massage and hygienic shoe insole.
[0004] A VENTILATED MAGNETOTHERAPEUTIC MASSAGE INSOLE is known from the prior art [CN203884847U, published 22.10.2014], comprising an insole body and several acupuncture magnets, wherein the middle portion of the insole body is a convex portion, and the convex portion corresponds to the arch of a person's foot, and the several acupuncture magnets include a Yongquan point magnet, a lung orifice magnet, a liver orifice magnet, a stomach orifice magnet, a kidney point magnet, two intestinal and genital cavity magnets, wherein the Yongquan acupuncture magnet, the lung acupuncture magnet, the liver acupuncture magnet, the stomach acupuncture magnet, the kidney acupuncture magnet, the two intestinal acupuncture magnets and the genital magnet, respectively, are fixedly located in the insole so as to correspond to the acupuncture points of the foot; the insole body is accordingly provided with several ventilated holes; the lower ends of the ventilated holes are located on the lower end surfaces of the insole body and accordingly are provided with a plurality of air guiding grooves.The ventilated magnetic therapy massage insole has the advantages of multiple acupuncture magnets located on the insole body and can be used to conduct magnetic therapy on the feet to effectively condition and improve the microcirculatory system of the human body.
[0005] The disadvantage of the analogue is the transitions between the front and middle parts of the insole, between the middle and back parts and between the two zones of the middle part located across the insole, which do not provide a smooth transition that would avoid abrupt changes in height and rigidity, thereby reducing the uniform distribution of pressure across the entire surface of the foot, which increases the risk of point loads, which reduces the uniformity of the distribution of pressure exerted on the foot.
[0006] Also known is an INSOLE WITH A MASSAGE FUNCTION [CN218245941U, published 10.01.2023], comprising an insole body that is adapted to the shape of the sole; the insole body comprises a front sole massage zone adapted to the shape of the front sole, a rear heel massage zone adapted to the back heel, and a middle massage zone; a flexible zone for relieving aching pain of the user's sole is located between the front sole massage zone and the middle massage zone; the flexible zone is provided with a stepped elliptical groove that penetrates through the insole body; the upper part of the elliptical groove is covered with flexible fabric; a stepped elliptical block is clamped in the elliptical groove; an installation groove is formed in the oval block; an air cushion is releasably connected in the installation groove; a plurality of hemispherical massage blocks facing the soles are located in the front sole massage zone, the back heel massage zone and the middle massage zone;In the front massage zone of the sole and the middle massage zone there are three rows of air holes parallel to the direction of the sole; the three rows of air holes are staggered with hemispherical massage blocks; a cylindrical tube is located on the stepped surface of the elliptical block; the magnet is detachably connected to the cylindrical tube.
[0007] The disadvantage of the analogue is the transitions between the front and middle parts of the insole, between the middle and back parts and between the two zones of the middle part located across the insole, which do not provide a smooth transition that would avoid abrupt changes in height and rigidity, thereby reducing the uniform distribution of pressure across the entire surface of the foot, which increases the risk of point loads, which reduces the uniformity of the distribution of pressure exerted on the foot.
[0008] The closest in technical essence is the MASSAGE INSOLE [CN206423639U, published 08 / 22 / 2017], which includes a main part of the shoe last, the main part of the shoe last includes a structure for supporting the arch of the foot, the structure for supporting the arch of the foot includes a muscle for supporting the arch of the foot and is located in the area of the muscles for supporting the arch of the foot in several grooves of the stomata, each groove of the stomata has an air outlet, and the main body of the shoe last is inlaid with a plurality of magnetites, and around each magnetite, a plurality of holes for the magnetic field are uniformly distributed. The main body of the shoe last is made integral with the magnetites. The upper surface of the main body of the shoe last is provided with convex massage points.The massage points include the reproductive system, the intestines, the lower extremities, the urinary system, the digestive system, the thyroid gland, the reproductive system, the liver, and the spleen. The beneficial properties of this model include a variety of advantages, including a design that incorporates arch support, acupressure, magnetic therapy, and good breathability, all of which improve comfort and the health of the shoe last.
[0009] The main technical problem with the prototype is the transitions between the front and middle parts of the insole, between the middle and back parts, and between the two zones of the middle part located across the insole, which do not provide a smooth transition that would avoid abrupt changes in height and rigidity, thereby reducing the uniform distribution of pressure across the entire surface of the foot, which increases the risk of point loads, which reduces the uniformity of the distribution of pressure exerted on the foot.
[0010] The purpose of a utility model is to eliminate the shortcomings of the prototype.
[0011] The technical result of the claimed utility model consists in increasing the uniformity of distribution of pressure exerted on the foot by the corrective insole.
[0012] Said technical result is achieved in that the corrective insole comprises a base of variable thickness, including a front part, a middle part and a back part, on the upper side of the base there are massage points of a rounded convex shape, and on the lower side in the base there are recesses with through holes and built-in magnets, characterized in that the middle part on the upper side is located above the front part and is made with a transition to the front part with a bending radius equal to 24.5 - 34.5 mm, wherein the middle part is divided into a first zone with a side and a second zone with a side, the first zone of the middle part is located below the second zone with a smooth transition between them, the side of the first zone of the middle part is made with a bending radius to the first zone equal to 12.4 - 72 mm, and the side of the second zone of the middle part is made with a bending radius to the second zone equal to 7.5 - 91.8 mm, the base also includes a back part with sides,located on the upper side below the middle part and passing into the middle part at an obtuse angle to it.
[0013] In particular, the base is made of a single layer.
[0014] In particular, the recesses are made in a quadrangular shape.
[0015] In particular, on the lower side of the base, between the front and middle parts of the base, there are four recesses, two of which are made with a larger area, and the other two with a smaller area, wherein two recesses with a larger area are located at the edges of the base, and two recesses with a smaller area are located along the base between the large recesses.
[0016] In particular, on the underside of the base between the middle and back parts there are three recesses located in a row, oriented across the base.
[0017] In particular, each recess contains 1 to 3 holes.
[0018] In particular, the magnets are made of neodymium.
[0019] In particular, there are 2-4 holes made in the base on the bottom side above each magnet.
[0020] In particular, the massage points are located in the middle and back parts and are 4-6 mm long, 2-3 mm wide and 0.1-1.1 mm high.
[0021] In particular, the base contains tourmaline powder.
[0022] Brief description of the drawings:
[0023] Fig. 1 shows a bottom view of the corrective insole.
[0024] Fig. 2 shows a top view of the corrective insole.
[0025] Fig. 3 shows the right side view of the corrective insole.
[0026] Fig. 4 shows the rear view of the corrective insole. Fig. 5 shows the front view of the corrective insole.
[0027] The figures indicate: 1 - base, 2 - front part, 3 - middle part, 4 - back part, 5 - massage points, 6 - recesses, 7 - through holes, 8 - magnets, 9 - transition to the front part, 10 - first zone, 11 - side of the first zone, 12 - second zone, 13 - side of the second zone.
[0028] Implementation of a utility model.
[0029] According to the utility model, the corrective insole (Fig. 1 - 5) comprises a base 1 of variable thickness including a front part 2, a middle part 3 and a back part 4, on the upper side of the base there are massage points 5 of a rounded convex shape, and on the lower side in the base there are recesses 6 with through holes 7 and built-in magnets 8, characterized in that the middle part 3 on the upper side is located above the front part 2 and is made with a transition to the front part 9 with a bending radius of the transition equal to 24.5 - 34.5 mm, wherein the middle part 3 is divided into a first zone 10 with a side of the first zone 11 and a second zone 12 with a side of the second zone 13, the first zone 10 of the middle part 3 is located below the second zone 12 with a smooth transition between them, the side of the first zone 11 of the middle part 3 is made with a bending radius to the first zone 10 equal to 12.4 - 72 mm, and the side of the second zone 13 of the middle part 3 is made with a bending radius to the second zone 12 equal to 7.5 - 91.8 mm,the base 1 also includes a back part 4 with sides, located on the upper side below the middle part 3 and made with a transition to the middle part 3 at an obtuse angle to it.
[0030] The corrective insole contains a single-layer base 1 of variable thickness, consisting of a front (2), middle (3), and back (4) sections, with the front (2) and back (4) sections being rounded along the perimeter. The variable thickness of the base 1 in different sections of the insole allows it to adapt to the shape of the foot, helping to reduce stress points and ensuring even distribution of pressure exerted on the foot by the corrective insole.
[0031] Located on the upper side of base 1 are massage points 5 (Fig. 2), a rounded, convex shape that is part of base 1. This improves pressure distribution on the foot by activating reflexogenic zones, reducing point strain, improving blood circulation, and stimulating nerve endings. The rounded shape of the massage points helps distribute pressure more evenly, preventing the formation of hard pressure points. This, in turn, helps reduce the risk of injury and fatigue, improving the overall condition of the feet and lower extremities. All this improves the uniformity of pressure distribution exerted on the foot by the corrective insole.
[0032] The underside of base 1 is provided with recesses 6 (Fig. 4) with through holes 7. Recesses 6 reduce the contact area between the insole and the shoe, allowing pressure to be distributed more evenly across the entire surface of the insole, thereby preventing the formation of hard pressure points on the foot. This can reduce the risk of foot pain and other problems associated with overload. Recesses 6 can act as shock absorbers, allowing the insole to deform upon contact with the shoe. This absorbs shock and reduces the force transmitted to the foot. With each step, recesses 6 allow base 1 of the insole to adapt to the shape of the shoe, which reduces the load on joints and soft tissues, thereby increasing the uniformity of pressure distribution exerted on the foot by the corrective insole.
[0033] Seven perforations allow air circulation under the foot, helping prevent excessive sweating and overheating. Reduced sweating improves foot grip on the insole, reducing the likelihood of slipping and creating more stable support. This directly affects the even distribution of pressure during walking, improving the uniformity of the pressure exerted on the foot by the corrective insole.
[0034] Magnets 8 (Fig. 1) are also embedded in the underside of the base 1 of the corrective insole. These magnets activate biological zones of the foot. They act on specific points on the foot, creating gentle pressure in these areas. This improves gait biomechanics and blood circulation, and activates reflexogenic zones, promoting a more even distribution of load across the entire surface of the foot, thereby ensuring a more uniform distribution of pressure exerted on the foot by the corrective insole. Magnets 8 are made of neodymium, possessing a high magnetic force despite their small size. This allows them to provide a powerful magnetic field without increasing the thickness of the insole. This can further promote the dilation of blood vessels and improve the supply of oxygen and nutrients to the tissues of the foot, thereby further increasing the uniformity of pressure distribution exerted on the foot by the corrective insole.
[0035] The middle section 3 is located higher than the forefoot section 2 on the upper side and transitions into the forefoot section 9 with a bending radius of 24.5–34.5 mm (Fig. 3). The higher middle section 3 of the base 1 provides better support for the arch of the foot. This helps distribute body weight correctly, reducing pressure on the forefoot and preventing pain in the area of the toes and metatarsal bones. The bending radius in the range of 24.5–34.5 mm ensures a smooth transition between the middle section 2 and the forefoot section 3. This helps avoid abrupt changes in height and rigidity, which contributes to a more even distribution of pressure across the entire surface of the foot, reducing the risk of point loads. The smooth transition into the forefoot section 9 and the support of the arch of the foot, by locating the middle section 3 higher than the forefoot section 2, help reduce fatigue during prolonged walking or standing.All this improves the uniformity of pressure distribution from the corrective insole on the foot. Evenly distributed pressure helps avoid strain and discomfort, which is especially important for people who spend a lot of time on their feet. The smooth transition into the forefoot and arch support also help reduce fatigue during prolonged walking or standing.
[0036] If the flex radius is too small (less than 24.5 mm), the transition between the midfoot section 3 and the forefoot section 2 of the base 1 becomes too abrupt, which can lead to point loads. This creates discomfort and can cause pain in the forefoot. If the flex radius is too large (more than 34.5 mm), it can lead to insufficient arch support. The corrective insole will not properly support the arch, resulting in uneven weight distribution and increased pressure on the forefoot and heel. An out-of-range flex radius at the transition to the forefoot section 9 can disrupt the natural movement of the foot during walking. This leads to inefficient mechanics, increasing stress on the joints and soft tissues, which reduces the uniform distribution of pressure exerted on the foot by the corrective insole. The midfoot section 3 is divided into the first zone 10 with the first zone 11 border and the second zone 12 with the second zone 13 border.The collars help maintain proper foot alignment, providing stability. This evenly distributes body weight across both zones, reducing the risk of point pressure and discomfort. When pressure is distributed more evenly between the zones, it reduces strain on the muscles and ligaments, allowing you to stay on your feet longer without discomfort. This ultimately improves the uniformity of pressure applied to the foot by the corrective insole.
[0037] Proper pressure distribution thanks to the collars helps prevent overuse injuries such as plantar fasciitis and heel pain. The first collar (11) and the second collar (13) provide support and stability, reducing the risk of foot misalignment.
[0038] The first zone 10 of the middle section 3 is located below the second zone 12, with a smooth transition between them (Fig. 3). This smooth transition takes into account the anatomical features of the foot and its arch, promoting proper weight distribution. This helps support the arch and improves overall pressure distribution, reducing the risk of overload. The smooth transition between zones allows the foot muscles to work more efficiently. When pressure is distributed evenly, this reduces fatigue and discomfort, which is especially important during prolonged exercise. The correct positioning of the zones and the smooth transition between them help maintain the natural movement of the foot. This improves gait biomechanics, allowing for more effective load distribution with each step. All this ultimately improves the uniformity of pressure applied to the foot by the corrective insole.
[0039] The collar of the first zone 11 of the middle section 3 is designed with a bending radius to the first zone 10 of 12.4 - 72 mm (Fig. 5). A bending radius of 12.4 to 72 mm ensures a smooth transition between the first zone and the surrounding structures. A small radius (approximately 12.4 mm) allows for a more pronounced bend, which ensures a closer fit to the foot. A larger radius (up to 72 mm) promotes a softer and more gradual transition, which helps avoid abrupt changes in pressure. This helps evenly distribute the load, reducing the risk of creating point loads, allowing the collar to better adapt under load, which contributes to shock absorption and reduces the force transmitted to the foot. This helps reduce pressure on certain areas, especially the heel and forefoot, which is key to preventing injury and discomfort, thereby increasing the uniformity of pressure distribution exerted on the foot by the corrective insole.This radius provides arch support, which helps distribute body weight more evenly. This reduces pressure on certain areas and promotes better balance, which is important for preventing injury and fatigue.
[0040] If the bend radius between the first zone 11 and first zone 10 is less than 12.4 mm, it creates a sharp angle or bend, which can create a rigid boundary between the zone and the surrounding surface. This can lead to point loads, increasing the risk of discomfort and foot pain, especially in the area in contact with the bend radius. A bend radius greater than 72 mm can result in insufficient arch support, as the bend radius will not be able to effectively lock the arch in place. This can lead to uneven weight distribution, increasing pressure on the forefoot and heel, which can cause fatigue and discomfort. All of this ultimately reduces the uniformity of pressure applied to the foot by the corrective insole.
[0041] The second zone 13 collar of the middle section 3 has a bending radius of 7.5–91.8 mm relative to the second zone 12 (Fig. 5). A bending radius in this range precisely supports the arch of the foot and allows the second zone 13 collar to adapt to varying load levels. It ensures proper foot positioning and helps distribute body weight evenly, which helps avoid pain and strain, as is especially important during prolonged use of insoles. A bending radius in this range reduces pressure on the forefoot and heel, reducing the likelihood of pain and fatigue. A smaller radius (7.5 mm) allows for a more pronounced bend, improving fit and support. A wider radius (91.8 mm) promotes a smoother transition, which also helps avoid sudden pressure changes.This smooth load distribution reduces the risk of point loads, thereby increasing the uniformity of pressure distribution from the corrective insole on the foot. If the bend radius between the second zone 13 and second zone 12 edges is less than 7.5 mm, this results in a sharper angle or a rigid bend. Such abrupt changes can create rigid boundaries, which concentrate pressure at certain points on the foot. This leads to point loads and discomfort, especially in the arch area, thereby reducing the uniformity of pressure distribution from the corrective insole on the foot. If the bend radius is greater than 91.8 mm, the second zone 13 edge may become too soft, resulting in insufficient support and cushioning. This can make the insole less effective at absorbing shock and distributing load, increasing pressure on the forefoot and heel.A bend radius outside the specified range may disrupt the natural movement of the foot. This can lead to incorrect walking positions, increasing the risk of injury and strain, as the load will be distributed unevenly, thereby reducing the uniformity of pressure applied to the foot by the corrective insole.
[0042] Base 1 includes a rear section 4 with sidewalls, located on the upper side below middle section 3 and transitioning into middle section 3 at an obtuse angle. The obtuse angle between the rear section 4 and middle section 3 creates a smooth change in height, which helps avoid sudden changes in pressure. This promotes a more natural distribution of load across the entire foot and reduces the likelihood of point loads, improving the uniformity of pressure applied to the foot by the corrective insole. The sidewall of the rear section 4 provides stability, preventing the foot from shifting within the insole. This improves balance and even weight distribution, especially during movement, reducing the risk of injury and fatigue. The rear section 4 of the insole provides arch support, which is important for proper pressure distribution. This helps avoid overloading the forefoot and reduces discomfort during prolonged wear.The back part 4, designed with an obtuse angle transition, can contribute to better shock absorption. This helps reduce the force transmitted to the foot with each step and provides a more comfortable sensation. All this improves the uniformity of pressure distribution exerted on the foot by the corrective insole. On the upper part of the base 1, in the middle part 3 and the back part 4, there are, for example, eleven to fifteen massage points, which are 4-6 mm long, 2-3 mm wide and 0.1-1.1 mm high, with, for example, two to eight of which are made in the upper back part 4 of the base 1 of the insole, and five to eleven massage points 5 are located in the upper middle part 3 of the base 1. Such geometric dimensions of the massage points 5 create an additional variety of pressure points. This variety allows for an even distribution of the load on the foot, preventing the formation of point overloads and reducing discomfort.The height of the massage points (up to 1.1 mm) allows them to perform an additional shock-absorbing function. They can deform during walking, softening impacts and reducing the pressure transmitted to the foot. This promotes a more even distribution of load, which can ultimately further improve the uniformity of pressure applied to the foot by the corrective insole.
[0043] Tourmaline powder, which provides anion emission, is evenly mixed into a material such as polyurethane, which can be used for base 1. Tourmaline has the ability to generate anions (negatively charged ions) when subjected to mechanical stress. When walking or moving, the tourmaline in the insole is subjected to compression and friction, which promotes the release of anions. Anions can improve air quality and have positive health effects, including improved circulation and reduced foot fatigue. This can help distribute pressure more evenly during walking, further enhancing the uniformity of pressure applied to the foot by the corrective insole.
[0044] Examples of implementation.
[0045] First example of implementation.
[0046] The corrective insole comprises a base 1 of variable thickness, including a front part 2, a middle part 3 and a back part 4, on the upper side of the base there are massage points 5 of a rounded convex shape, and on the lower side in the base there are recesses 6 with through holes 7 and built-in magnets 8, characterized in that the middle part 3 on the upper side is located above the front part 2 and is made with a transition to the front part 9 with a bending radius of the transition equal to 24.5 mm, wherein the middle part 3 is divided into a first zone 10 with a side of the first zone 11 and a second zone 12 with a side of the second zone 13, the first zone 10 of the middle part 3 is located below the second zone 12 with a smooth transition between them, the side of the first zone 11 of the middle part 3 is made with a bending radius to the first zone 10 equal to 12.4 mm, and the side of the second zone 13 of the middle part 3 is made with a bending radius to the second zone 12 equal to 7.5 mm, also the base 1 includes the back part 4 with sides,located on the upper side below the middle part 3 and made with a transition into the middle part 3 at an obtuse angle to it.
[0047] Second example of implementation.
[0048] The corrective insole comprises a base 1 of variable thickness, including a front part 2, a middle part 3 and a back part 4, on the upper side of the base there are massage points 5 of a rounded convex shape, and on the lower side in the base there are recesses 6 with through holes 7 and built-in magnets 8, characterized in that the middle part 3 on the upper side is located above the front part 2 and is made with a transition to the front part 9 with a transition bending radius equal to 34.5 mm, wherein the middle part 3 is divided into a first zone 10 with a side of the first zone 11 and a second zone 12 with a side of the second zone 13, the first zone 10 of the middle part 3 is located below the second zone 12 with a smooth transition between them, the side of the first zone 11 of the middle part 3 is made with a bending radius to the first zone 10 equal to 72 mm, and the side of the second zone 13 of the middle part 3 is made with a bending radius to the second zone 12 equal to 91.8 mm, also the base 1 includes the back part 4 with sides,located on the upper side below the middle part 3 and made with a transition into the middle part 3 at an obtuse angle to it.
[0049] Third example of implementation.
[0050] The corrective insole comprises a base 1 of variable thickness, including a front part 2, a middle part 3 and a back part 4, on the upper side of the base there are massage points 5 of a rounded convex shape, and on the lower side in the base there are recesses 6 with through holes 7 and built-in magnets 8, characterized in that the middle part 3 on the upper side is located above the front part 2 and is made with a transition to the front part 9 with a bending radius of the transition equal to 29.5 mm, wherein the middle part 3 is divided into a first zone 10 with a side of the first zone 11 and a second zone 12 with a side of the second zone 13, the first zone 10 of the middle part 3 is located below the second zone 12 with a smooth transition between them, the side of the first zone 11 of the middle part 3 is made with a bending radius to the first zone 10 equal to 29.8 mm, and the side of the second zone 13 of the middle part 3 is made with a bending radius to the second zone 12 equal to 42.2 mm, also the base 1 includes the back part 4 with sides,located on the upper side below the middle part 3 and made with a transition into the middle part 3 at an obtuse angle to it.
[0051] The fourth example of implementation.
[0052] A corrective insole comprises a base 1 of variable thickness, including a front part 2, a middle part 3 and a back part 4, on the upper side of the base there are massage points 5 of a rounded convex shape, and on the lower side in the base there are recesses 6 with through holes 7 and built-in magnets 8, characterized in that the middle part 3 on the upper side is located above the front part 2 and is made with a transition to the front part 9 with a bending radius of the transition equal to 24.5 - 34.5 mm, wherein the middle part 3 is divided into a first zone 10 with a side of the first zone 11 and a second zone 12 with a side of the second zone 13, the first zone 10 of the middle part 3 is located below the second zone 12 with a smooth transition between them, the side of the first zone 11 of the middle part 3 is made with a bending radius to the first zone 10 equal to 12.4 - 72 mm, and the side of the second zone 13 of the middle part 3 is made with a bending radius to the second zone 12 equal to 7.5 - 91.8 mm, the base 1 also includes a rear part 4 with sides,located on the upper side below the middle part 3 and made with a transition into the middle part 3 at an obtuse angle to it.
[0053] Tests were conducted between the original and comparable insoles. Ten people wore these insoles and the original insoles while walking on a flat surface and up stairs for three hours. Pressure distribution across the entire foot surface and point loads were measured using stress test platform sensors and real-time pressure sensors. Ultimately, the test results for each insole revealed that the pressure distribution on the foot was 4% more uniform than that of comparable insoles.
[0054] According to the data obtained, the claimed utility model in four implementation examples provides the greatest distribution of pressure over the entire surface of the foot and a reduction in point loads compared to the prototype and analogs, which increases the uniformity of the distribution of pressure exerted on the foot by the corrective insole.
[0055] Thus, the claimed utility model, due to the technologies used in it, a set of characteristics and interrelations, has a positive effect on the practical use of the device and allows for an increase in the uniformity of the pressure distribution exerted on the foot by the corrective insole.
Claims
FORMULA 1. A corrective insole comprising a base of variable thickness including a front portion, a middle portion and a back portion, on the upper side of the base there are massage points of a rounded convex shape, and on the lower side there are recesses with through holes in the base and magnets built in, characterized in that the middle portion on the upper side is located above the front portion and is made with a transition to the front portion with a bending radius equal to 24.5 - 34.5 mm, wherein the middle portion is divided into a first zone with a side and a second zone with a side, the first zone of the middle portion is located below the second zone with a smooth transition between them, the side of the first zone of the middle portion is made with a bending radius to the first zone equal to 12.4 - 72 mm, and the side of the second zone of the middle portion is made with a bending radius to the second zone equal to 7.5 - 91.8 mm, the base also includes a back portion with sides,located on the upper side below the middle part and made with a transition into the middle part at an obtuse angle to it.
2. A corrective insole according to paragraph 1, characterized in that the base is made of a single layer.
3. A corrective insole according to paragraph 1, characterized in that the recesses are made in a quadrangular shape.
4. A corrective insole according to paragraph 1, characterized in that on the lower side of the base between the front and middle parts of the base there are four recesses, two of which are made with a larger area, and the other two with a smaller area, wherein two recesses with a larger area are located along the edges of the base, and two recesses with a smaller area are located along the base between the large recesses.
5. A corrective insole according to paragraph 1, characterized in that on the lower side of the base between the middle and back parts, three recesses are located in sequence, oriented across the base.
6. A corrective insole according to paragraph 1, characterized in that each recess contains 1 to 3 holes.
7. A corrective insole according to paragraph 1, characterized in that the magnets are made of neodymium.
8. A corrective insole according to paragraph 1, characterized in that 2 to 4 holes are made in the base on the lower side above each magnet.
9. A corrective insole according to paragraph 1, characterized in that the massage points are located in the middle and back parts and are 4–6 mm long, 2–3 mm wide, and 0.1–1.1 mm high.
10. A corrective insole according to paragraph 1, characterized in that the base contains tourmaline powder.