On Wednesday, Toyota launched a new robotic leg brace called the WelWalk WW-1000. The robotic exoframe is designed to help patients with partial paralysis walk again. The device is worn on the affected leg, with a large motor component at the knee joint that helps with functions such as supporting body weights and assisting with movements such as swinging the leg forward.

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http://www.accessibilitynewsinternational.com/toyota-develops-welwalk-robotic-brace-to-aid-in-rehabilitation-of-stroke-patients/