Flat foot orthosis

Abstract

A flat foot orthosis has two bodies, and each one of the two bodies has a wearing space, a foot portion, an ankle portion, a shank portion, a substrate, and a first elastomer. The substrate and the first elastomer are disposed adjacent to each other, and surround the wearing space. The substrate extends from the foot portion to the shank portion through the ankle portion. The first elastomer extends from an instep of the foot portion at a cuboid bone of a wearer through a lateral side of the foot portion, a sole of the foot portion, and an arch of the foot portion in order, wraps over a navicular bone of the wearer, and extends outwardly combining upwardly through the ankle portion at a talus bone of the wearer toward the shank portion.

Description

BACKGROUND OF THE INVENTION1. Field of the Invention[0001]The present invention relates to an orthosis for lower limbs, and more particularly to a flat foot orthosis that may correct pronation of the foot (functional flat foot), hallux valgus, internal rotation of lower limbs, knee valgus, and pelvic tilt and torsion.2. Description of Related Art[0002]For most of human history, humans step on soft surfaces such as dirt, sand, or grass, the soft surfaces would conform to each foot due to pressure, and provide support for the feet. For instance, in the inspection of a footprint in sand, the lateral side of the footprint makes an indention. The medial side of the footprint does not indent, but rather the sand supports the medial arch of the foot. As a result, the support prevented pronation of feet, and prevents collapsed medial arches. This kept their bone structures aligned, and maintained a correct alignment of bones and joints and proper biomechanics. However, in the modern society...

AI Technical Summary

Benefits of technology

[0004]The main objective of the present invention is to provide a flat foot orthosis that may keep correct bone and joint alignments and proper biomechanics, and correct poor postures, and subsequent discomfort and muscular sore & pains.

Problems solved by technology

However, in the modern society, hard surfaces such as concrete pavement do not conform to feet.

So when people step on hard surfaces, the feet are exposed to increased pressure and unalign pronate.

In more severe situations, bone and joint alignments of the foot may become unaligned.

A tilted pelvis may lead to curved spine compensation, and subsequently functional scoliosis, unbalanced tensions of paraspine muscles and soft tissue may thereby occur.

In summary, the serial disorder of bone and joint alignments creates poor postures, and accordingly the person may suffer those aforementioned symptoms.

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