The Dodrill-GMR Mechanical Heart

The Dodrill-GMR Mechanical Heart is a 12-cylinder pump for temporarily replacing the human heart during heart surgery. It was the first mechanical heart in the world used successfully to keep a patient's entire bloodstream circulating. This mechanical heart was designed, built and tested cooperatively by Harper Hospital in Detroit, the Michigan Heart Association, and GMRL (originally a 6 pump unit) in the early 1950s. It has been referred to as a landmark in cooperative research between medical men and engineers. Medical Science was a auxiliary exhibit by GM Research in the Applied Research section of the Avenue of Progress.