aed generally refers to an automated external defibrillator (AED), which is a portable medical device that can diagnose specific cardiac arrhythmias and deliver a shock to defibrillate them, and is a medical device that can be used by non-professionals to resuscitate a patient in cardiac arrest, and is used when the patient's pulse stops. So aed in analyzing the heart rate, the rescuer can take artificial respiration and check the pulse.
AED is not only a first aid device, but also a new concept of first aid, a concept of effective first aid by the earliest witnesses at the scene. It is different from traditional defibrillators in that the built-in computer analyzes and determines whether the person needs to be defibrillated.