ALIGNMENT INDICATION FOR TRANSCUTANEOUS ENERGY TRANSFER

摘要

The present invention relates to an external power system for transcutaneous energy transfer to an implantable medical device. The implantable medical device has componentry for providing a therapeutic output and a secondary coil operatively coupled to the componentry. The implantable medical device is adapted to be implanted in a patient and comprises a primary coil providing energy to the implantable medical device when the primary coil is placed in proximity of the secondary coil, thereby generating a current in the internal power source. An alignment indicator is operatively coupled to the internal power source and reports the alignment as a function of the current generated in the internal power source with a predetermined value associated with an expected alignment between the primary coil and the secondary coil.