CN216393231U - Layered foot orthotic structure with gradient distribution - Google Patents

Abstract

The utility model provides a layered foot orthopedic structure with gradient distribution, which comprises a sole and an insole; the sole comprises an upper sole, a middle sole and a heel sole; the thickness and the volume of the upper sole to the heel sole are distributed in a gradient decreasing manner; the upper bottom is contacted with the insole, and the angle between the upper bottom and the ground is 5 degrees; the middle sole is clamped between an upper sole and a heel sole, and the upper sole and the middle sole are connected by gluing; the heel bottom is positioned right below the heel, and the heel bottom and the midsole are connected by gluing; the insole has a circular area at the heel.

Description

Layered foot orthotic structure with gradient distribution

Technical Field

The present invention relates to orthopedic shoe soles and insoles.

Background

The importance of the shoes and boots is self-evident as one of the essential devices in daily life. When a person walks or moves, the shoes and the boots are used as buffer layers for contacting the feet with the ground, thereby protecting the feet and improving the motion capability. The design of the footwear is particularly important for patients who suffer from diabetes and peripheral neuropathy, or who have undergone metatarsal osteotomies and other foot surgeries, which may help them prevent foot complications. The adoption of the sole material is also a key factor for designing the shoes and boots, and can better play a role in treating or preventing human diseases.

The insole is in direct contact with the foot, the hardness and the thickness of the material of the insole can influence the body perception of a wearer, so that the perception of the wearer to the external impact force is influenced, and the corresponding change is made. In addition, the insole has a function, and the personalized proper orthopedic insole can treat some foot diseases conservatively by correcting and improving the pressure distribution of the sole while having the basic function of the insole; improving the biomechanical characteristics of lower limb abnormality, preventing and helping to treat knee joint lesion, adjusting the overall posture of a human body when the human body stands and walks, improving the pain of the waist and the back, and the like.

SUMMERY OF THE UTILITY MODEL

To this end, we have devised sole and insole constructions that assist in the orthotic of the foot of a patient suffering from a foot disorder.

The utility model is realized by the following technical scheme: a layered orthopedic foot structure having a gradient profile, characterized by: comprises a sole and an insole;

the sole comprises an upper sole, a middle sole and a heel sole; the thickness and the volume of the upper sole to the heel sole are distributed in a gradient decreasing manner; the upper bottom is contacted with the insole, and the angle between the upper bottom and the ground is 5 degrees; the middle sole is clamped between an upper sole and a heel sole, and the upper sole and the middle sole are connected by gluing; the heel bottom is positioned right below the heel, and the heel bottom and the midsole are connected by gluing; the insole has a circular area at the heel.

In a preferred embodiment: the upper bottom is made of EVA materials or silica gel materials.

In a preferred embodiment: the middle sole is made of EVA material with VA content of 18%.

In a preferred embodiment: the heel base is made of rubber materials.

In a preferred embodiment: the round area at the heel of the insole is made of a silica gel material.

In a preferred embodiment: the insole is made of EVA material.

Compared with the prior art, the technical scheme of the utility model has the following beneficial effects: the utility model provides better wear resistance and waterproof performance by adopting the rubber material at the heel bottom; the middle sole is made of EVA material with VA content of 18%, so that the middle sole is soft, good in elasticity, good in chemical corrosion resistance and the like; the EVA material is adopted in the upper sole which is in contact with the insole, so that larger deformation space and shock absorption performance are provided. In addition, the silica gel material is adopted in the round area of the heel of the insole, so that the insole plays a role in supporting the heel and absorbs energy; the insole main body is made of EVA material with good air permeability, so that secondary infection of the feet of a patient is avoided.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a bottom view of the present invention.

Fig. 3 is a front view of the present invention.

In the figure: insole body-1, insole heel part circular region-2, sole bottom-3, sole middle sole-4, sole heel bottom-5.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like, are used in a broad sense, and for example, "connected" may be a wall-mounted connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention specifically.

As shown in fig. 1, a footwear sole and insole having an orthopedic function, the footwear sole includes an upper sole 3, a midsole 4 and a heel sole 5. The insole comprises an insole body 1 and a circular area 2 at the heel of the insole.

The heel bottom 5 is made of rubber materials, so that the wear resistance and the shock absorption performance of the sole are improved.

The middle sole 4 is made of EVA material with 18% VA content, the softness and elasticity are slightly better than those of rubber, and the middle sole is arranged in the middle of the sole to strengthen the cushioning performance of the sole.

Last end 3 adopts the EVA material of silica gel or 40% VA content, through pressure test contrast, last end 3 is when the silica gel material, the maximum stress of silica gel material only takes place in the one-shot of beginning walking, with the good compliance and the elasticity of silica gel material, can make the volume of heel become slender, better elasticity has, thereby the elasticity of heel has been increased, make the position of foot focus change, alleviate the distribution of concentrated stress, be unlikely to let it concentrate on these two positions of heel and toe, the impact force of ground to heel has also been alleviateed, thereby make some by walking, stand, the heel pain that the sole is hard to cause has obtained effectual relief. When the upper sole 3 is made of EVA material with 40% VA content, the stress distribution of EVA is more uniform, the pressure of the sole can be balanced, and the damage of the heavy pressure to the sole can be reduced. The displacement of the EVA material can be found to be increased along with the change of time by comparing the displacement, and a patient with diabetic foot also needs to have a larger space for the foot in the shoe, so that the foot is prevented from being extruded due to the overcrowding inside the shoe. Meanwhile, because such materials have good cushioning properties, impact resistance and shock resistance, impact force of the ground to the foot can be reduced, and after a period of time when the shoe with the sole made of such materials is used, the shape of the shoe is shown on the material due to pressure, so that the sole is more suitable for the foot shape, and comfort can be better experienced after wearing the shoe, thereby reducing pain brought to people. Meanwhile, because EVA belongs to porous foam material, has good air permeability, can avoid letting patient's foot secondary infection.

As shown in figure 1, the upper sole 3, the middle sole 4 and the heel sole 5 are distributed in a gradient way, and the gradient structure can bring great improvement to the performance of the sole structure and help the orthopedic progress to be smoothly carried out.

The insole body 1 is made of EVA material in consideration of air permeability and rebound resilience of the insole, and the thickness and material parameters of the insole are preferably selected in the thickness range of 2mm-8mm and different material hardness. Wherein, the insole with the largest absorbed energy and smaller stress is preferably selected, the thickness is 4mm, the density of the EVA material is 0.22g/cm3, the Young modulus is 2000kPa, and the Poisson ratio is 0.4.

The round area 2 at the heel of the insole is a part with larger stress on the foot, and is made of a silica gel material, so that the stress concentration at the heel is reduced due to the excellent energy absorption characteristic, the stress distribution of the foot is more uniform, and the posture of the foot is adjusted.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim embodiments concerned.

Claims (6)

1. A layered orthopedic foot structure having a gradient profile, characterized by: comprises a sole and an insole;

the sole comprises an upper sole, a middle sole and a heel sole; the thickness and the volume of the upper sole to the heel sole are distributed in a gradient decreasing manner; the upper bottom is contacted with the insole, and the angle between the upper bottom and the ground is 5 degrees; the middle sole is clamped between an upper sole and a heel sole, and the upper sole and the middle sole are connected by gluing; the heel bottom is positioned right below the heel, and the heel bottom and the midsole are connected by gluing; the insole has a circular area at the heel.

2. The layered orthopedic foot structure having a gradient profile of claim 1, wherein: the upper bottom is made of EVA materials or silica gel materials.

3. The layered orthopedic foot structure having a gradient profile of claim 1, wherein: the middle sole is made of EVA material with VA content of 18%.

4. The layered orthopedic foot structure having a gradient profile of claim 1, wherein: the heel base is made of rubber materials.

5. The layered orthopedic foot structure having a gradient profile of claim 1, wherein: the round area at the heel of the insole is made of a silica gel material.

6. The layered orthopedic foot structure having a gradient profile of claim 1, wherein: the insole is made of EVA material.

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