Patent ID: 8560068

Claim:
A medical system for delivering pacing pulses to HIS bundle of a heart of a patient when implanted in said patient, said system comprising: a medical lead, which is adapted to be fixated to tissue of said heart, said medical lead including a lead body including a flexible insulating tubing and at least one conductor arranged within said tubing; a penetrating electrode arrangement coupled to a distal end of the medical lead, the penetrating electrode arrangement including a fixation apparatus adapted to fixate the lead to the tissue of said heart; and at least two electrodes arranged on said fixation apparatus, wherein the at least two electrodes are electrically separated from each other and wherein the at least two electrodes are electrically coupled to said at least one conductor; and a selection device connected to the at least two electrodes and being adapted to selectively activate at least one of said electrodes, and an implantable medical device configured to be coupled to said medical lead, said medical device comprising a pacing circuit adapted to deliver said pacing pulses to said heart via said selection device and said medical lead.