An external pacemaker is a medical device that can be used to restore or maintain a heartbeat by electrically stimulating the heart. It usually consists of a controller and a set of electrodes. The electrodes can be attached to the patient's chest, shoulder, or leg, among other locations, and the controller is responsible for generating an electric current and transmitting it to the electrodes.
Extracorporeal pacemakers generally use single-use electrodes to avoid infection. Extracorporeal pacemakers are widely used in clinical emergencies, surgical treatments, cardiac conditions, and many other situations, where they are simple and safe to operate and can provide vital life support to patients.