EXTERNAL POWER SOURCE, CHARGER AND SYSTEM FOR AN IMPLANTABLE MEDICAL DEVICE HAVING THERMAL CHARACTERISTICS AND METHOD THEREFORE

摘要

External power source (48), charger, system and method for transcutaneous energy transfer. An implantable medical device (16) has a first housing (32) having operational componentry (28) for providing the therapeutic output. A secondary housing (68) is mechanically coupled to the first housing (32) having a secondary coil (34) operatively coupled to the componentry (28), the secondary coil (34) capable of receiving energy from the external source. A magnetically shielding material (36) is positioned between the secondary coil (34) and the first housing (32). An external power source (48) has an external housing (52). A primary coil (54) carried in the external housing (52), the primary coil (54) being capable of inductively energizing the secondary coil (34) when the housing is externally placed in proximity of the secondary coil (34) with a first surface (62) of the housing positioned closest to the secondary coil (34), the first surface (62) of the housing being thermally conductive surface. An energy absorptive material carried within the external housing (52).