Patent ID: 8825173
Filing Date: 2014-09-02
Classification: A61B,A61F,A61N,H02J,H04B

Abstract:
1. Apparatus configured to supply energy to a medical implant, comprising: a receiver adapted to be implanted in a mammal patient's body, an external energizer adapted to wirelessly transfer energy to the receiver, and a feedback communication system configured to send feedback information from the receiver to the external energizer, the feedback information being related to the transfer of energy to the receiver, wherein the feedback communication system is adapted to communicate the feed back information using the patient's body as an electrical capacitive conducting signal line, two capacitive capacitor plates, one capacitor plate being adapted configured to contact the inside of the mammal patient's body, the other capacitor plate is configured to be the outside of the mammal patient's body, each capacitor plate being divided so as to comprise a first dividing plate or portion and a second dividing plate or portion in order to improve the total capacitive coupling between the two capacitor plates, wherein the two dividing plates or portions on a sending side are adapted to be provided with signals which are the inverse of each other, when transmitting a signal through the capacitor, such that the first dividing plate or portion is configured to be provided with a direct signal and the second dividing plate is configured to be provided with an inverted signal, and an inverter circuit for the inversion of signals communicating with the outside capacitor plate, one dividing plate or portion of the external capacitor plate being provided with the direct signal and the other dividing plate or portion being provided with the inverted signal.