It doesn't work. He will need time and rest for his physical injuries to heal.
You find on his arm a Pip Boy looking device, which somehow is still functional. It's currently doing something...
user vital signs: Knocked out, serous condition, notable burns throughout the body. will require six ointments and a fuck ton of rest for mental trauma as he serously just saw his best friend die.
...running hardware diagnostic.
CPU=OK
RAM= moderate damage/functional
UI chip=CAVOK
Keyboard: OK
Improbability Matrix=???
useage of the improbability drive is unknown, however usage as a pip boy is fully functional.
It seems Player Connor should pull though assuming you can treat him.