This invention relates to an automated cardiopulmonary resuscitation device for cyclically compressing a patients chest. The CPR device comprises a front structure with a first and a second movable unit arranged to move back and forth along said front structure a back support for positioning behind the patients back arranged to keep the front structure in a fixed position relative to the patients back a chest pad two arms each rotatably coupled to the chest pad with one end and each being rotatably coupled to a respective one of the first and the second movable units and a motor arranged for, when in operation, driving the first and the second movable units back and forth such that the chest pad cyclically compresses the patients chest.
