Electroencephalograph

An electroencephalograph (EEG) is a medical device that records the brain’s electrical activity through electrodes placed on the scalp, producing a visual graph (electroencephalogram) to diagnose neurological and psychiatric conditions. Clinically, it helps identify seizures, sleep disorders, brain tumors, or abnormalities like epilepsy by analyzing patterns in brainwave signals in real time or for later review.

EEGs are typically regulated as medical devices under strict standards to ensure accuracy and safety, with classification varying by jurisdiction based on their diagnostic capabilities. These devices are commonly supplied as standalone systems or integrated with telemetry for remote monitoring, often requiring calibration and trained personnel for proper use and interpretation.