Tiny, inexpensive chip monitors vital signs

CORVALLIS, Oregon, USA  – Electrical engineers at Oregon State University (OSU) have developed a postage stamp sized microchip capable of monitoring medical vital signs and powered by radio-frequency energy from nearby devices, such as cell phones.

The monitoring system is currently in the process of patenting and is ready for clinical trials. Upon commercialisation, the device can be used as a disposable electronic sensor, with many potential applications, most obviously in heart monitoring. The system can be used to measure components of an EKG, such as pulse rate and atrial fibrillation. The device can also measure EEG brain signals and make physical activity recordings.

The new technology could be used in conjunction with cell phones or other radio-frequency devices within about 15 feet, but its underlying micro-powered technology can also be run using other energy-harvested sources, such as body heat or physical movement.

OSU will continue to develop the technology in partnership with private industry.