LONDON, ENGLAND – OCTOBER 21: Amanda Boxtel (L), who is paralysed, is helped to walk with the aid of the new ‘Bionic Exoskeleton’ during its launch at the Excel centre on October 21, 2011 in London, England. The device developed by Ekso Bionics is a wearable, battery-powered, robotic exoskeleton, designed to aid wheelchair users and those who have suffered from spinal chord injuries to stand and walk. (Photo by Dan Kitwood/Getty Images)