Complex sentence: In 1960 he implanted a Pacemaker provided by Rune Elmqvist from the Karolinska Institute of Sweden, being this the first successful pacemaker implant in America.
Split into simpler sentences: In 1960 he implanted a pacemaker provided by Rune Elmqvist from the Karolinska Institute of Sweden. This was the first successful pacemaker implant in America.