Wearable defibrillation system

Wearable defibrillation systems are portable medical devices designed to continuously monitor heart rhythms and deliver electrical shocks to treat life-threatening arrhythmias, such as ventricular fibrillation or pulseless ventricular tachycardia. These systems use dry, non-adhesive electrodes on a wearable vest to detect abnormal rhythms, alerting the patient before delivering a shock—allowing conscious users to avoid treatment if needed. For unconscious patients, the system automatically activates gel on the electrodes and delivers the shock to restore a normal heartbeat. They are intended for patients at high risk of sudden cardiac arrest who require immediate intervention outside a hospital setting.

These devices are typically regulated as active implantable or external defibrillators, depending on jurisdiction, and may require compliance with safety and performance standards for electrical safety, electromagnetic compatibility, and clinical effectiveness. They are usually supplied as a complete system, including the wearable vest, electrodes, and portable defibrillator unit, often prescribed for at-risk individuals under medical supervision. Availability and classification vary by country, so users should confirm local regulatory requirements before use.