The LUCAS device attaches around a victim in need of CPR via a plate that slides under the back and connects to a mechanized arch with a centered piston, positioned above the victim.  

Once assembled, and with a battery engaged, LUCAS will perform chest compressions until the battery runs out, which lasts about 30 to 40 minutes.

“We’ve got two batteries, so we can get an hour or more of automated, hands-free compressions,” said Fire Chief Mike Knoup. “If all else fails, it has a plug that goes into an electrical outlet to continue compressions, and we have those in the ambulances.”