IMPLANTABLE MEDICAL DEVICE WITHOUT A WIRE-WOUND COIL CONFIGURED TO RECEIVE WIRELESS POWER FROM AN EXTERNAL CHARGER

The present invention relates to an implantable medical device, IMD, configured to wirelessly receive power from an electromagnetic field, comprising a case housing control circuitry for the IMD, wherein at least a portion of the case is conductive, and wherein a case current is formed in the conductive case portion in response to the electromagnetic field, power reception circuitry inside the case, a non-conductive header affixed to the case, and first and second electrical connections to divert at least some of the case current as a power current to the power reception circuitry, wherein at least the electrical connection comprises a single antenna portion in or on the header, wherein the power reception circuitry is configured to use the power current to provide power to the IMD.