There was a senior design class I took at JHU in Mechanical Engineering where outside companies and a few individuals would sponsor design projects, some which are similar to this story. In my class one group build a pedal for a bike for someone with a prosthetic leg. It was an amazing class where you were presented a problem, and then you designed and implemented, or created a prototype of, a solution. It was 20 years ago but I would imagine they still have something similar.