Patent ID: 8065009
Filing Date: 2011-11-22
Classification: A61N

Abstract:
1. A header assembly for connecting a conductor terminating at a body organ with control circuitry and at least one electrical energy storage device of an implantable medical device, the header assembly comprising: a) a base plate comprising an upper surface, a lower surface, and a surrounding edge having a lower region and an upper region comprising an overhang having a lower perimeter and an upper perimeter, wherein the upper perimeter is greater than the lower perimeter; b) a first feedthrough subassembly disposed in a first through hole in the base plate, the first feedthrough subassembly comprising a first ceramic-to-metal seal formed within the first through hole, and at least a first feedthrough wire passing through the first ceramic-to-metal seal; c) at least a first electrically conductive terminal connected to a distal end of the first feedthrough wire and having a first lead opening sized to receive a first portion of a lead for the conductor; d) a body of polymeric material comprising a first polymeric material supporting the first terminal in a partially encased relationship and a second polymeric material encasing the first polymeric material and at least an upper region of the surrounding edge of the base plate so that the first terminal is prevented from moving in the header assembly; and e) a first bore communicating from outside the polymeric body to the first lead opening.