06.09.09
Defib
Good blend of medicine and computing. A footballer with a known heart condition suffers a heart attack (some sort of ventricular fibrillation/tachycardia). Luckily he has been fitted with a implantable cardioverter defibrillator which kicks in at 0:15.
The defibrillator paces the heart as needed, delivering a shock which causes the heart to stop and hopefully restart with a normal rhythm.