The first variable rate pacemaker was developed and implanted. (1 gen 1960 anni – 1 gen 1966 anni)

Descrizione:

Cardiothoracic surgeon Leon Abrams, with medical engineer Ray Lightwood, developed and implanted the first variable rate pacemaker in 1960. The first implant of this device took place in March 1960, with two further implants taking place in April 1960. By 1966, 56 patients had received implants.