TWM467446U - Flatfoot orthotic insole - Google Patents

Description

Flat foot orthopedic insole

The present invention relates to a flat foot orthopedic insole, and more particularly to a flat foot orthopedic insole that can adjust the arch to outwardly flip the force structure and correct the foot into a perfect bow shape.

In addition to supporting weight, the human body's feet must also use both feet for walking or running. Therefore, the feet must be used for shock, push and balance. The foot of the human body is roughly divided into a toe, a heel, and a foot arch connecting the toe and the heel. Among them, the normal arch has the best curvature, and when standing, the weight falls on the middle of the feet.

From the birth of the baby to the second year of the child, the arch of the foot is usually flat due to the high fat of the foot and the maturity of the muscle ligament and the immature development of the athlete's muscle and movement. This is a normal phenomenon; After the age, as the plantar fat slowly decreases, the foot muscles begin to develop, and rely on the joint ligaments, naturally becoming stronger, so that the plantar fascia slowly bends to support the entire arch.

However, some children have talar dysplasia, resulting in abnormal foot deformity from the Talonavicular joint. Even some children can reach a prominent bulge bone at the base of the foot. This is the dislocated talus. Observing the condition of the bone in the Planar Flexion from the X-ray film Under the condition that the dislocation of the scaphoid joint is determined, if it is not actively prevented and treated, it is easy to cause the flat foot to be produced, so it shows the necessity of physical therapy correction intervention, such as the professional flat foot correction insole recommended by the physical therapist. The insole controls the abnormal biomechanical gait of the foot to achieve the purpose of improving the symptoms of the flat foot and to prevent the deformation of the arch from further deteriorating.

The existing flat foot orthopedic insole is integrally formed and includes a toe portion, a heel portion, and a arch portion connecting the heel portion and the toe portion, and the thickness of the arch portion is about 2 mm to 3 mm, occupying The inner space of the shoe is large and is composed of soft materials, resulting in poor support force, and thus can not effectively disperse the pressure of the sole, resulting in fatigue easily generated by the sole.

Accordingly, it is an object of the present invention to provide a flat foot orthopedic insole that is relatively thin and provides moderate support.

Thus, the novel flat foot orthopedic insole comprises: a soft contact layer comprising a toe portion, a heel portion, a forefoot inner support portion, a lateral arch outer support portion, and a foot arch portion. The heel portion is opposite to the toe portion, and the inner portion of the arch is obliquely extended from an inner side between the toe portion and the heel portion, the toe portion of the arch is from the toe portion and the An outer side of the heel portion extends obliquely upwardly, the arch portion is located between the inner side of the arch and the outer portion of the arch; and a support layer is wrapped around the outer surface of the arch portion, and the The hardness of the support layer is greater than the hardness of the soft contact layer.

Preferably, the support layer is also wrapped on the inner side of the arch The top of the bracket and the outer surface of the lateral support of the arch.

Preferably, the flat foot orthopedic insole further comprises an adhesive layer attached between the soft contact layer and the support layer.

Preferably, wherein the thickness of the arch portion, the adhesive layer and the total thickness of the support layer is less than 2 mm.

Preferably, the soft contact layer is made of vinyl acetate, and the support layer is made of carbon fiber material.

The utility model has the advantages that the support layer made of carbon fiber material is coated on the outer surface of the arch portion, so that the product is more lightweight, does not occupy the inner space of the shoe, and makes the support better, and reaches More effectively disperse plantar pressure and reduce plantar fatigue.

1‧‧‧foot

2‧‧‧Soft contact layer

21‧‧‧Foot

22‧‧‧Heel

23‧‧‧The inner part of the arch

24‧‧‧The lateral arch of the arch

25‧‧‧foot arch

3‧‧‧Support layer

4‧‧‧Adhesive layer

T‧‧‧ total thickness

The other features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the drawings, wherein: FIG. 1 is a perspective view showing a preferred embodiment of the present invention. FIG. 2 is a perspective view showing the preferred embodiment; FIG. 3 is a bottom view showing a support layer of the preferred embodiment wrapped around the outer surface of a arch portion; FIG. It is a cross-sectional view showing the thickness of the arch portion, the adhesive layer and the support layer of the preferred embodiment, and is plotted in relation to the foot.

The foregoing and other technical contents, features and functions of the present invention The details will be apparent from the following detailed description of a preferred embodiment of the drawings.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , a preferred embodiment of the flat foot corrective insole is suitable for children with poor development of the arch of the foot within three years old, and is provided for the one foot of the child to be placed on the foot. In the shoes (not shown). The flat foot orthopedic insole comprises a soft contact layer 2, a support layer 3, and an adhesive layer 4.

The soft contact layer 2 is made of a vinyl acetate (Ethyl Vinyl Acetate, EVA) foam material and is an elastic support material. It has the characteristics of light weight, soft elasticity and good abrasion resistance, and can alleviate the impact force when hitting the ground. The soft contact layer 2 includes a toe portion 21, a heel portion 22, an arch inner support portion 23, an arch lateral support portion 24, and a arch portion 25. The heel portion 22 is opposite the toe portion 21 and the heel portion 22 is narrower than the arcuate shape of the toe portion 21. The arch inner support portion 23 is obliquely extended from an inner side between the toe portion 21 and the heel portion 22, and the cross-sectional width gradually decreases from bottom to top. The lateral arch rest 24 extends obliquely upward from an outer side between the toe portion 21 and the heel portion 22, and the cross-sectional width gradually decreases from bottom to top. The arch portion 25 is located between the medial arch portion 23 of the arch and the lateral support portion 24 of the arch.

The support layer 3 is in the form of a strip and is wrapped around the outer surface of the arch portion 25, the arch inner support portion 23 and the lateral arch support portion 24, and the support layer 3 is made of carbon fiber material, and the hardness is greater than that of the soft contact layer 2 The hardness can provide moderate support.

The adhesive layer 4 is an acrylic resin and is adhered between the soft contact layer 2 and the support layer 3.

When the user wears a flat foot orthopedic insole, the foot 1 will step on the top surface of the soft contact layer 2, that is, the foot 1 steps on the toe 21, the heel portion 22, the arch portion 25, and the inside of the arch. Between the top portion 23 and the top surface of the lateral arch portion 24 of the arch, the sole can be adjusted along the curved surface of the soft contact layer 2, and the pressure of the arch is optimally controlled by the design of the support layer 3. Balanced support, when the heel portion 22 touches the ground during the walking cycle or when the toe portion 21 is off the ground, the carbon fiber material of the support layer 3 has elastic characteristics, can store elastic energy, assist elastic reset, and help walk Advance to increase the user's walking comfort.

It is worth mentioning that the flat foot orthopedic insole of the present embodiment is directed to the biomechanical principle of the foot 1, applying pressure to the Talonavicular joint, and at the fifth metatarsal bone and the ipsilateral calcane. (Calcaneus) applies the corresponding resistance to maintain a normal physiological structure from the scaphoid joint, and applies the physical therapy correction method to return the bone arrangement of the foot 1 to the correct position, forming a normal arch shape, which can further reduce or change the foot. The bottom pressure distribution is more able to give the body good support, so that the whole body weight is evenly distributed on the foot 1, so that the muscles and ligaments connecting the foot 1 and the calf can be fully extended, making the body both feet standing or walking. Both get the best balance and absorb the impact from the ground.

In the existing flat foot orthopedic insole (not shown), the thickness of the arch portion is about 2 mm to 3 mm. Referring to FIG. 4, the total thickness t of the arch portion 25 and the support layer 3 of the flat foot correcting insole is less than 2 mm. In this embodiment, the total thickness t of the arch portion 25, the adhesive layer 4 and the support layer 3 is 0.5 mm. Does not occupy the space inside the shoe (not shown), making the product more lightweight. Moreover, the carbon fiber material of the support layer 3 can make the support better, and achieve more effective dispersion of the plantar pressure and reduce the fatigue of the sole.

In summary, the novel flat foot orthopedic insole is coated on the outer surface of the arch portion 25, the arch inner support portion 23 and the lateral arch support portion 24 through a support layer 3 made of carbon fiber material to make the product It can be lighter, does not occupy too much space inside the shoe, and makes the support better, and achieves more effective dispersion of the sole pressure and reduces the fatigue of the sole, so it can achieve the purpose of the present invention.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification, All remain within the scope of this new patent.

1‧‧‧foot

2‧‧‧Soft contact layer

21‧‧‧Foot

22‧‧‧Heel

23‧‧‧The inner part of the arch

24‧‧‧The lateral arch of the arch

25‧‧‧foot arch

3‧‧‧Support layer

4‧‧‧Adhesive layer

Claims (5)

A flat foot orthopedic insole comprising: a soft contact layer comprising a toe portion, a heel portion opposite to the toe portion, an inner side of the arch of the foot, and an inner side between the toe portion and the heel portion Extending obliquely upward, the lateral support portion of the arch of the foot extends obliquely upward from an outer side between the toe portion and the heel portion, and a foot arch portion is located between the inner side of the arch and the outer portion of the arch And a support layer covering the outer surface of the arch portion, and the hardness of the support layer is greater than the hardness of the soft contact layer. The flat foot orthopedic insole of claim 1, wherein the support layer is further wrapped around the inner side of the arch and the outer surface of the lateral support of the arch. The flat foot orthopedic insole according to claim 1, further comprising an adhesive layer attached between the soft contact layer and the support layer. The flat foot orthopedic insole of claim 3, wherein the thickness of the arch portion, the adhesive layer and the total thickness of the support layer is less than 2 mm. The flat foot orthopedic insole according to claim 1, wherein the soft contact layer is made of a vinyl acetate foam material, and the support layer is made of a carbon fiber material.