The ReWalk exoskeleton suit allowed Claire Lomas, (see photo) paralyzed from the chest down from horse riding accident, to recently finish the London Marathon. It took her two weeks, but she showed how much mobility paraplegics could regain through the use of a battery-powered exoskeleton.

This suit straps onto a person’s torso and can help them walk, stand and climb stairs. The user wears a backpack containing a lithium ion battery and a small computer, which runs the device by communicating with a wristwatch. Using the watch, the wearer can choose whether to sit, stand, or climb.