battle armor: a from The Risen Empire
"the padding on the back of the neck held hyper-oxygenated plasmanalog that was injected directly into the brain in case a marine’s heart stopped. The exoskeletal servomotors could immobilize the wearer if the suit detected a spinal injury. There were local anesthesia IVs every hundred square centimeters or so. And the armor could maintain a terminated marine’s brain almost as well as a Lazarus symbiant."
