Pacemaker is a medical device used to regulate the heartbeat.The first pacemaker was external and dangerous because they could eletrocute the person who using that.
Wilson Greatbatch pantented this in 50s but the first pacemaker(external) was used by an American doctor, in 1952, to reanimate two patients. One of them live 20 minutes and another 11 months. Pacemaker was implanted by the first time in a person in 1958 in Sweden. Rune Ellmquyist managed to make a pacemaker small enough to be implanted in a person.
The first pacemaker in Portugal was used by Décio Ferreira Martins in 1962.
Pacemaker are used in brain surgery too.
This invention allows a better quality of life to people who have a cardiac problem.
We think that is an important invention to humanity because it can save lives.
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