March 8, 1952 (Imjin February 13), the first human use of a mechanical heart. Reference in 1952 3, 8, of Pennsylvania Hospital in Philadelphia announced: the first human mechanical heart successfully installed in the patient's body. Despite the 41-year-old steel worker Peter Dearing was dead, but the device in normal operation is successful, regardless of the cause of his death and the use of mechanical heart.

the device to make the Dilling life for 80 minutes. Participated in the surgery staff from three hospitals.
the device is the the 1932 De Beiji developed by Dr. pump cardiac improved, it is seen as the first step towards this goal the entire artificial heart.