IMPLANTABLE MEDICAL DEVICES, AND METHODS OF USE THEREWITH, THAT USE A SAME COIL FOR RECEIVING BOTH COMMUNICATION AND POWER SIGNALS

摘要

Implantable medical devices (IMDs), and methods for use therewith, use a same coil for receiving communication and power signals. An IMD, which is configured to operate in a charge or power mode and in a communication mode, includes a coil, power circuitry and communication circuitry. The coil includes first and second terminals and an intermediate tap therebetween. The power circuitry is coupled, during the charge or power mode, to a first portion of the coil extending between the first and second terminals of the coil. The communication circuitry is coupled to a second portion of the coil extending between the first terminal and the intermediate tap of the coil. A third portion of the coil, extending between the intermediate tap and the second terminal of the coil, is decoupled from the power circuitry during the communication mode, which prevents current from flowing through the third portion of the coil.

主权项

1. An implantable medical device (IMD) configured to operate in a first mode and a second mode, the IMD comprising:
a coil including a first terminal, a second terminal and an intermediate tap between the first and second terminals; first circuitry coupled, during the first mode, to the first and second terminals of the coil, and configured to at least one of charge a rechargeable battery or power therapy and/or diagnostic circuitry in dependence on a first signal received using the coil from a non-implantable device during the charge mode; and second circuitry coupled, during the second mode, to the first terminal and the intermediate tap of the coil, and configured to demodulate communication signals received using the coil from a non-implantable device during the second mode.