In this paper, we present a novel ankle-foot-orthosis (AFO) design that controls ankle motion by providing a plantarflexion stop with free dorsiflexion during gait. The biomechanical controls are accomplished with a unique application of a cam-follower design that uses pneumatic power harvested via an air bellow embedded into the insole of the AFO (Figure 1). This portable design is self-contained and does not require any external power source to provide for the plantarflexion stop locking mechanism. It is the first step in a series of untethered fluid-powered orthotic devices.
- Bioengineering Division
Portable Pneumatic Power-Harvesting Ankle-Foot-Orthosis
Chin, R, Hsiao-Wecksler, ET, Loth, E, Alleyne, A, Manwaring, S, Shorter, KA, Tyson, SN, & Kogler, G. "Portable Pneumatic Power-Harvesting Ankle-Foot-Orthosis." Proceedings of the ASME 2008 Summer Bioengineering Conference. ASME 2008 Summer Bioengineering Conference, Parts A and B. Marco Island, Florida, USA. June 25–29, 2008. pp. 411-412. ASME. https://doi.org/10.1115/SBC2008-192702
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