Ankle-foot orthotic
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United States of America Patent
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Nov 24, 2015
Grant Date -
Mar 6, 2014
app pub date -
Aug 21, 2013
filing date -
Aug 21, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An ankle-foot orthotic device is designed to closely simulate the natural movement of a lower extremity throughout a proper walking gait cycle. The orthotic device includes upper and lower support members that are pivotally coupled by opposing dorsiflexion assist members. The lower support member includes a rigid, unitary cup for receiving the heel and ankle portions of the lower extremity. The cup is shaped to include a continuous slot that allows for at least 5 degrees of compression upon initial heel strike and thereby promotes a smooth, decelerating heel roll. The lower support member additionally includes a rigid footplate on which is mounted a flexible overlay, the overlay extending beyond the footplate in the medial aspect to promote proper pronation into midstance. A compressible stop is mounted on the lower support member and selectively contacts the upper support member to prevent hyperextension of the lower extremity.
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