Wireless non-contact biopotential electrodes

Ubiquitous physiological monitoring will be a key driving force in the upcoming wireless health revolution. Cardiac and brain signals in the form of ECG and EEG are two critical health indicators that directly benefit from long-term monitoring. Despite advancements in wireless technology and electronics miniaturization, however, the use of wireless home ECG/EEG monitoring is still limited by the inconvenience and discomfort of wet adhesive electrodes. We have developed a wireless biopotential instrumentation system using non-contact capacitive electrodes that operate without skin contact. The compact, battery-powered, wireless system accepts inputs from both standard Ag/AgCl electrodes and non-contact sensors and provides live telemetry to a laptop computer. We will demonstrate the interactive, prototype ECG/EEG system for acquiring cardiac and brain signals quickly and through clothing.