Patent ID: 7801625

Claim:
A magnetic resonance imaging (MRI) electromagnetic interference immune modular defibrillation lead, comprising: a defibrillation lead body; a defibrillation conductor disposed within the lead body and having a first plurality of coplanar conductive elements capacitively coupled to adjacent conductive elements and disposed within a dielectric material within the defibrillation lead body; and a second plurality of conductive elements each being non-coplanar with the first plurality of coplanar conductive elements, each of the second plurality of conductive elements capacitively coupled to adjacent conductive elements and capacitively coupled to adjacent conductive elements of the first plurality of coplanar conductive elements, and disposed within the dielectric material within the defibrillation lead body; wherein, a defibrillation signal can be effectively conducted along the defibrillation conductor due to the dielectric material having a dielectric voltage threshold less than a voltage produced by the defibrillation signal while MRI electromagnetic interference is not conducted along the defibrillation conductor due to the dielectric material having a dielectric voltage threshold greater than a voltage induced by the MRI electromagnetic interference.