Medical drama CPR used in that like an iron, put on the patient's body to press the button the patient's body will fly high, what is called the device?

The medical device that looks like an iron is called a defibrillator. It is used to deliver an electric current to the heart to deal with arrhythmias, especially severe ventricular fibrillation. In medical dramas, it's usually shown as a paramedic applying electrodes to a patient's chest and then pressing a button to deliver an electric current to restore normal heart rhythm.