This is a very interesting little point, that consumer electronics (especially ports) have little physical safeguards to prevent errors—e.g., you can plug USB2 into USB3 for backward compatibility, but not vice versa, for the B plug; ungrounded extension cords try to prevent you from plugging in grounded plugs. Medical equipment generally doesn't do this. I think the problem is that there is a tradeoff between safeguards and allowing improvisation in a time of shortage or emergency; for example, I've seen blood draw lines repurposed as external irrigators (not as catheters) and that's totally safe as long as you dispose of the needle in a sharps bin.