Is this one of the final researches to be carried out in space beyond instruments in probes and satellites, considering they're going to let the ISS burn up?
It's a vaporware discussion by laymen. I can't believe a doctor would advocate using CPR when things like AED defibrillators are already handy.
High quality CPR includes AED usage. 30 compressions to two ventilations. After 2 minutes of CPR, perform a rhythm check with AED and shock if advised. There are existing robots that do chest compressions for you (Zoll AutoPulse, LUCAS). They would work in space I bet.