Innovative wheelchair design isn't for all wheelchair users

You'll often see positive news stories coming out of the tech press involving robotics projects that are designed to help people with mobility issues. Exoskeletons, like Toyota's WelWalk, ReWalk, and Ekso Bionics' eponymous walking frame, help people regain the use of their legs. Sit-stand wheelchairs are currently gaining lots of attention, and they do offer, for many people, much greater freedom and independence than standard chairs. But more often than not, they're designed for people with specific disability requirements -- and that means not everyone will get to use them. Not all disabilities are the same, and because they manifest themselves in different ways, it's hard to make generalizations.