EEG recording frontend circuitry for epileptic seizure detection headband

Epilepsy is a common neural disorder disease; about 1.7% of the global population has epilepsy. Most patients use antiepileptic drugs to reduce their seizures. Among them, nearly one-third of the patients are drug-resistant epilepsy. The alternative treatment is the resection surgery of removing the epileptogenic zone. However, all above patients will still have some seizures, which will influence the patients' quality-of-life, and further introduce danger and inconvenience to patients and people around. This paper presents a design and development of a frontend circuitry in EEG reading for a smart epileptic seizure detection headband. The headband will consist of a textile headband with printed-circuit-board (PCB) inside, and textiled electrodes on it. The PCB includes following circuits: an electroencephalography (EEG) recorder, an epileptic seizure detector circuit, and a Bluetooth transmitter. The analog frontend circuit of EEG recording circuits and its prototype with system integration will be present in this paper. The result of designed circuits yields a compact and low-power design for EEG recording which is suitable for wearable headband designs.