Manufacturing method for an implantable intracardiac device and for a respective header assembly

A manufacturing method for a header assembly for an implantable intracardiac device, wherein the header assembly comprises at least one tine extending from a base ring, wherein the base ring is conically formed, further comprising a header cap and a header base, wherein the header cap and the header base each comprises a supporting side surface corresponding to the conical form of the base ring, wherein the manufacturing method comprises the following steps:

• an assembly step, wherein the base ring is placed between the header base and the header cap such that the base ring is located adjacent the supporting header base side surface of the header base and the supporting header cap side surface of the header cap, and
• a fixing step, wherein the header cap and the header base are fixed such that the base ring is located in an inclined slot base ring groove formed by the supporting header cap side surface and the supporting header base side surface.