Patent ID: 9216296
Filing Date: 2015-12-22
Classification: A61N

Abstract:
1. An implantable medical device comprising: a first implantable housing and a second implantable housing; one or more conductive leads configured to electrically couple circuitry within the first implantable housing with circuitry within the second implantable housing and transfer electrical energy between the first and second implantable housings; a plurality of batteries comprising at least one or more rechargeable batteries and one or more non-rechargeable batteries disposed within the first implantable housing; receive circuitry configured to receive electrical energy from outside of a patient's body and to charge the one or more rechargeable batteries; at least one high voltage capacitor disposed within the second implantable housing and configured to hold charge delivered from the plurality of batteries and to apply a therapy signal to the patient; and management circuitry disposed within one of the first or second implantable housings and configured to control (i) charge transfer from the plurality of batteries to the at least one high voltage capacitor and (ii) charge transfer from the at least one high voltage capacitor to the one or more rechargeable batteries when the at least one high voltage capacitor is charged and charge energy can be disposed of.