| 摘要 |
<p>This will describe unique foot orthotics that are designed to restore, reduce or eliminate foot, ankle, knee, hip and back pain by restoring your natural gait, balance and posture by supporting and cushioning different arches under the foot. These unique orthotics are made in a way that allows different areas of a unitary part to be custom made at different hardnesses by controlling the thickness and cross-linking of the orthotic in that area. This is very beneficial as some parts of the foot need more solid support and other parts need softer support. The parts are made of a chemical-resistant, water-resistant microcellular closed cell material. Also, the orthotics can be made in a variety of overall average stiffness by varying the amount of foaming agent and/or changing materials. This is required for different sporting activities. These orthotics can also be made very light weight by increasing the amount of foaming. These parts can incorporate a cushioning device made with the same process, which further improves the supporting and cushioning of the foot. The orthotic and orthotic/cushioning device combination all slip into the shoe from the top and are replaceable. The present invention also provides for a shoe or sandal further comprising an orthotic of unitary construction, the orthotic being reheatable to conform partially to an individual's foot. The orthotics of the present invention can be made with a high degree of reproducibility and with complicated curves and designs. There are two known processes that can manufacture these parts in the precise reproducible quality needed for orthotics or orthotic/midsole combinations.</p> |
