Patent ID: 8442647
Filing Date: 2013-05-14
Classification: A61N,Y10T

Abstract:
1. A medical implantable lead comprising: a lead body adapted for implantation in a human or animal, said lead body having a proximal end and a distal end; a fixation arrangement located at said distal end of said lead body, said fixation arrangement being adapted to fix the distal end of the lead body in vivo to an organ in the body; an electrode arrangement located at said distal end of said lead body and adapted, when the distal end of the lead is fixed by said fixation arrangement to the organ, to receive, or transmit, or receive and transmit, electrical signals with respect to the organ; at least one electrical conductor assembly inside said lead body configured to electrically connect at least one of said fixation arrangement and said electrode arrangement with an electrical device at the proximal end of the lead body, said at least one electrical conductor assembly comprising one or more helical sub-assemblies; at least one of said one or more helical sub-assemblies comprising a wire coil having a wire core surrounded by an electrically insulating layer, with said electrically insulating layer being surrounded by an electrically conducting shield layer, and said coil being wound with closely-lapped flights that bring respective electrically conducting shield layers of adjacent flights of the coil to be in electrical contact with each other.