Spacers For Use With Transcutaneous Energy Transfer System

An external power system for transcutaneous energy transfer to an implantable medical device having componentry for providing a therapeutic output and a secondary coil operatively coupled to said componentry, said medical device adapted to be implanted at a location in a patient, comprising:

• an external power source having a primary coil contained in a housing;
• said external power source capable of providing energy to said implantable medical device when said primary coil of said external power source is placed in proximity of said secondary coil of said implantable medical device;
• and
• a holder adapted to be externally positioned with respect to said patient at a spot in proximity of said location of said implantable medical device and secured at said location, said housing being removably coupled to said holder;
• and
• a plurality of spacers, each separately removably coupled to at least one of said holder and another of said plurality of spacers, each having an opening receiving at least a portion of a cutaneous protrusion formed at said location at which said implantable medical device is implanted, said plurality of spacers being stacked with said opening of each of said plurality of spacers being aligned with said opening of each of the other of said plurality of spacers.