Implantable medical device with rechargeable battery

An implantable medical device (IMD) configured to be implanted within a patient, the IMD comprising:

• a housing that is substantially transparent to radiative Electro-Magnetic (EM) energy along at least part of its length;
• circuitry disposed within the housing;
• a plurality of electrodes exposed external to the housing and operatively coupled to the circuitry;
• a rechargeable power source disposed within the housing and configured to power the IMD including the circuitry;
• a receiving antenna disposed within the housing and configured to receive transmitted radiative EM energy through the at least part of the housing that is substantially transparent to radiative EM energy;
• and
• the circuitry operably coupled with the receiving antenna and the rechargeable power source, the circuitry configured to use the radiative EM energy received via the receiving antenna to charge the rechargeable power source.

An implantable medical device (IMD) configured to be implanted within a patient, the IMD comprising:

• a housing forming at least part of a receiving antenna, wherein the receiving antenna is configured to receive transmitted radiative Electro-Magnetic (EM) energy through the patient's body;
• a plurality of electrodes exposed external to the housing;
• circuitry disposed within the housing, the circuitry operatively coupled to the plurality of electrodes and configured to sense one or more signals via one or more of the plurality of electrodes and/or to stimulate tissue via one or more of the plurality of electrodes;
• a rechargeable power source disposed within the housing and configured to power the circuitry;
• and
• charging circuitry operably coupled with the receiving antenna and the rechargeable power source, the charging circuitry configured to use the radiative EM energy received via the receiving antenna to charge the rechargeable power source.