A system for performing chest compression and abdominal compression for Cardiopulmonary Resuscitation. The system includes a motor and gearbox including a system of clutches and brakes which allow for controlling and limiting the movement of compressing mechanisms operating on the chest and the abdomen...http://www.google.de/patents/US7166082?utm_source=gb-gplus-sharePatent US7166082 - CPR device with counterpulsion mechanism
