US Patent 7430820 Foot orthosis and method of use thereof

A foot orthosis device which may be used with footwear to provide arch support for the purpose of relief of physical discomfort such as pain of the foot due to such conditions as over use of longitudinally directed muscles, tendons, and ligaments located between the metatarsal and calcaneal section of the bottom of a human foot. The orthosis device can placed between the existing removable sole and non-removable platform, or above the non-removable sole, or may be integral with a portion of the footwear.