I'm not actually sure wheelchairs are approved as medical devices. Certainly not the same way pacemakers are. A friend of mine recently had her power chair go h

I'm not actually sure wheelchairs are approved as medical devices. Certainly not the same way pacemakers are. A friend of mine recently had her power chair go haywire on her and try to kill her, which sounded like a melted MOSFET from how she described the repair job. The wheelchair company apparently elected not to recall that model because it only happens to 1% of users.