A Healthier Tomorrow – Smart Tech Enables Wireless Control Of Drug Delivery And Medical Applications
MIT researchers have come up with a new method to power and manage the devices that are implanted in the human body. These implants are usually powered by radio frequency waves which are safe enough to go through the human tissues.
As they do not need a battery, these devices can be as small as a grain of rice, possibly even smaller. These devices could provide the doctors with new ways to monitor, diagnose, and treat several diseases. Traverso’s lab is dedicated to developing ingestible systems that can detect movement of the GI tract, monitor vital signs, and deliver drugs.
Until now, this has been difficult to achieve because radio waves tend to dissipate as they pass through the body, so they end up being too weak to supply enough power. To overcome that, the researchers devised a system that they call “In Vivo Networking” (IVN).
This system depends on antennas that emit radio waves of slightly varied frequencies. As these waves travel, they sometimes overlap. When the high points overlap, it could generate enough energy to power the device implanted from as far as 38 meters away. The sensor’s exact location is not needed as the power is transmitted over a wide area.
Source: http://news.mit.edu
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