Tiny Implant Chip Could Detect Heart Attacks Before They Happen

Swiss researchers say they've come up with a tiny implant that can analyze blood from within our bodies and send test results directly to a doctor.

The device would be implanted just below the skin and can basically look at the concentration of substances in the blood to help determine the status of a patient's health. There are five sensors, a radio transmitter and a power system to make it all work, as explained in the video above. The chip, which is only about 14mm (or about a half-inch), was developed by a team at the Swiss Federal Institute of Technology in Lausanne, Switzerland (EPFL).