Pacemaker of its own heart....!!

Now scientists have revolutionary thinking about using a new type of pacemaker. It is already used in animal to gain assurance about its further uses. It's called pacemaker of its own heart.
Pacemaker or artificial pacemaker,
its not heart's natural pacemaker. It is a medical device that uses
electrical impulses, delivered by electrodes contacting the heart
muscles, to keep the normal beating of the heart. The primary function
of a pacemaker is to maintain an adequate heart...