What Is a Defibrillator?

A defibrillator delivers a controlled electrical shock to the heart to stop dangerous arrhythmias such as ventricular fibrillation and pulseless ventricular tachycardia, allowing the heart's natural rhythm to reset. In hospitals, this is typically a manual or dual-mode defibrillator/monitor operated by trained clinical staff.

Many modern units combine defibrillation with monitoring capability, ECG display, and sometimes pacing functions in a single device, which is useful in emergency rooms, ICUs, and operating rooms where the same unit may serve several roles during a resuscitation event.

Because a defibrillator has to work reliably the moment it's needed, facilities should prioritize battery readiness, self-test features, and straightforward controls that reduce hesitation during an emergency, along with a maintenance plan that keeps the unit always ready.

ICare Life supplies defibrillator and AED systems from Nihon Kohden and Shenzhen Comen, covering emergency and critical-care use cases. Our technical team can also set up a routine testing schedule so your crash carts and code teams are never caught with an unready device.