1. For this to work, remove health bars entirely, perhaps you could view your own (but I would like that not to be the case).
2. Injuries on yourself can be seen by the already in game damaged body parts, but bandaging would apply an image over.
3. Instead of the health bars, players have "Vitals", such as heartbeat, breathing, blood flow (veins or something)
4. Medical skill now dictates how easy it is to locate vitals, where medical doctors could detect a faint heartbeat from someone on the verge of death or the shallowest breaths, whereas low medical skill will only come up inconclusive after a certain time.
5. Perhaps CPR could damage players if performed wrong (still breathing but bleeding out/blunt trauma)
I suppose that's it, as of the moment the only real upside to being a doctor is the glasses and being able to fabricate medical supplies. You can pretty much tell why someone is lying on the floor at the edge of your screen by checking their health bar at the moment, and the deceased part is even easier to figure out.
Also; bonus suggestion to stop accidental button pressing from having them all over the bridge.
