Patent ID: 7177704

Claim:
A pacing system comprising: a medical lead including: a lead body having at least one conductor with an electrically insulative sleeve positioned over the conductor; an electrode disposed at a distal end of the lead body, the electrode co-linear to the lead body, said electrode electrically connected to the conductor, said electrode having a shape adapted to provide fixation into tissue of a heart; an electrically insulative material masking proximal and distal ends of the electrode; and an intermediate unmasked conductive portion of the electrode positioned between the masked proximal and distal ends of the electrode, wherein the medical lead adapted to couple to one of a HIS bundle and a right ventricular septum of a heart, wherein the distal end of the electrode being masked along a sufficient length of the electrode such that insertion of only the masked distal end and the unmasked portion in the heart tissue provides stable fixation.