Tomorrow’s tiny drug dispensers or implantable medical devices can only work inside human bodies if they have power. Now a new system can wirelessly transmit power through muscles and bones to keep such devices running. The patented system uses magnetic coupling to deliver power over a distance of 20 inches. A person could wear the transmitter on their belt so that it wirelessly sends power to the receiver module inside a medical device — whether that device is a video capsule taking pictures of the body’s insides or a drug capsule releasing medication at certain times of day.
