Assertion: pacemaker | /r/HasProperty | medical device
Facets:
Source sentences:
text: A pacemaker is a medical device implanted in the chest that stimulates heart contractions via small electrical impulses.
text: A cardiac pacemaker (or artificial pacemaker, so as not to be confused with the natural pacemaker of the heart), is a medical device that generates electrical impulses delivered by electrodes to cause the heart muscle chambers (the upper, or atria and/or the lower, or ventricles) to contract and therefore pump blood; by doing so this device replaces and/or regulates the function of the electrical conduction system of the heart.
text: A pacemaker is a medical device that controls a person's heartbeat.