Stroke survivor Ken Allsford focused intensely on how he wanted to bend his elbow. And then the robot exoskeleton attached to his left arm obeyed his unspoken command, moving his crippled limb. “It was a combination of exciting and trepidation, because sometimes nothing would happen,” Allsford, 61, of Katy, Texas, recalled. “But when you actually… read on > read on >







