Defibrillators are critical emergency medical devices designed to treat life-threatening heart rhythm disturbances such as cardiac arrest. These devices deliver a controlled electrical shock to the heart, helping restore a normal heart rhythm and improve the chances of survival during sudden cardiac emergencies.

Defibrillators are commonly used in hospitals, ambulances, emergency departments, and public places where rapid response to cardiac arrest is essential. Modern defibrillators are designed with user-friendly interfaces, clear instructions, and advanced monitoring capabilities, allowing healthcare professionals and trained responders to provide quick and effective life-saving treatment.