"Wounded" members of the crew "heal" if placed in the crew quarters, especially if the medic is present.
The crew member must be disabled at the end of the patrol to receive the medal.
This is an unfinished portion of the game. I have figured out a way to implement crew disability and accidents/sabotage leading to disability and even death during a patrol, but I haven't been able to get help programming it. It would make the medic an important member of the crew.