Implantable device with a charging current feed arrangement which has a receiving coil

Implantable device with a charging current feed arrangement comprising:

• at least one receiving coil into which, in an implanted state within a body, energy can be transcutaneously fed electromagnetically via a charging device located externally of the body;
• a repeatedly rechargeable electrochemical battery;
• and
• a main module connected to the battery to receive electric power therefrom, and having a housing arrangement made of a biocompatible metal;
• wherein the receiving coil is located outside of the housing arrangement and being electrically coupled to the parts of the implantable device located within the housing arrangement;
• wherein the receiving coil is wound from at least one metallic conductor that is jacketed with an electrically insulating material and is surrounded by a biocompatible polymer;
• and
• wherein the receiving coil is mechanically connected to at least a part of the housing arrangement to form a unit therewith.