Forty-three-year-old paraplegic Robert Woo walks with an exoskeleton device made by Ekso Bionics during a demonstration at the opening of the Rehabilitation Bionics Program at Mount Sinai Rehabilitation Center on Dec. 6, 2012, in New York City. Woo is an architect who was paralyzed from the hips down during a construction accident and thought he would never walk again. The new strap-on exoskeleton uses motors and sensors to physically move the legs.
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