Patent ID: 8918192

Claim:
An intracardiac lead for stimulation or defibrillation, comprising a flexible tubular sheath having an axial direction and a distal end, and a lead head terminating the distal end, the lead head comprising: an at least partially electrically insulating tubular outer housing having an outer region; an anchor that anchors the lead head to a tissue of a patient, connected to the tubular housing, wherein the anchor extends axially from the distal end of the lead head, a distal stimulation electrode, disposed at the distal end of the lead head; and a heat sink comprising a solid part that is electrically isolated and carried by the tubular housing in an outer region thereof, wherein said solid part extends in the axial direction to the distal end of the lead head, and comprises a contact front face to be secured in contact with said tissue of the patient by said anchor extending therefrom, to form a thermal bridge between said tissue and said solid part.