DIFFERENTIAL AND VARIABLE STIFFNESS ORTHOSIS DESIGN WITH ADJUSTMENT METHODS, MONITORING AND INTELLIGENCE

An assistive ankle foot orthosis is described. The AFO has a tubular vertical member arranged laterally to a user's limb. The member carries a rotational bearing and a rotational element such as a pulley. The pulley is connected to a footplate. The footplate provides joint movement assistance o...

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Bibliographische Detailangaben
Hauptverfasser: LERNER, Zachary, LIEBELT, Leah, OREKHOV, Grigoriy
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An assistive ankle foot orthosis is described. The AFO has a tubular vertical member arranged laterally to a user's limb. The member carries a rotational bearing and a rotational element such as a pulley. The pulley is connected to a footplate. The footplate provides joint movement assistance or resistance to the user upon rotation of the pulley. The pulley is coupled to one or more springs that provide counter-rotational resistance to pulley movement, thereby storing, and then returning, rotational force during certain foot movements. The spring can include a leaf spring arranged inside the member, the stiffness of which can be manually, automatically or dynamically adjusted by movement of the device.