THERMAL DOSE CALCULATION AND PROTECTION IN AN IMPANTABLE MEDICAL DEVICE

The present invention relates to control system () for controlling a charging process of an implantable medical device, IMD, for a patient, the control system () comprising: means for determining a temperature () of a tissue of a patient; a control unit () configured to determine a cumulative thermal dose of the patient based on the determined temperature; wherein the control unit () is configured to continue, after an interruption of the charging process and upon resumption of the charging process, the determination of the cumulative thermal dose based on one or more predefined conditions, wherein the control unit () is configured to reset the determined cumulative thermal dose when a time span from interruption is greater than a time limit and/or when a measured temperature is lower than a temperature limit. The present invention is further directed to a system comprising such a control system, to a method and a corresponding computer program.