Patent 8730031 was granted and assigned to Proteus Digital Health on May, 2014 by the United States Patent and Trademark Office.
The system of the present invention includes an implantable device that can detect high and low frequency current signature. The implantable device can communicate with a communication device that includes a conductive element, an electronic component, and a partial power source in the form of dissimilar materials. Upon contact with a conducting fluid, the communication device is activated.