Dyani Lewis Gert-Jan Oskam walks with the assistance of a crutch. A spinal-cord injury paralysed him below the neck 12 years ago, but a new device has given him mobility.Credit: CHUV/Gilles Weber Twelve years ago, a cycling accident left Gert-Jan Oskam, now 40, with paralysed legs and partially paralysed arms, after his spinal cord was...