Medical RFID-Sensor Patch
Scientists at the Georgia Institute of Technology recently created a thin, medical patch that uses ultrahigh-frequency (UHF) active RFID sensor tag that’s designed to monitor the health and location of its wearers.
The patch is made up of a tag antenna, whose circuit traces and connecting pads are printed on an organic substrate using silver inkjet technology. There’s also an IC temperature sensor, battery, and oscillator that are all connected via a silver epoxy.
Since the patch is made of flexible, organic fiber, it can easily be worn using an adhesive backing, or simply sewn into a hospital gown, allowing for a connection to the ECG sensors, which could then wirelessly transmit data from them.
RFID readers could easily be hung on a wall, or embedded in a ceiling, and connected to the internet, using triangulation to pinpoint the location of a patch within 33 feet. With web-based software, such as Google Earth, it would be easy for a computer to display the location of the patch wirelessly.
While the patch is not on the market yet, researchers are currently working with several companies in order to market the RFID medical patch.