Patent ID: 6662055
Filing Date: 2003-12-09
Classification: A61N

Abstract:
An intravascular electrode lead having a proximal end and a distal segment and comprising at least one of a plurality of electrodes, each of said at least one of a plurality of electrodes electrically connected to a conductive insulated wire of a predetermined diameter and having a proximal end and a distal end, the wire tapered at least at one predetermined location along its length towards the distal end so as to present a thinner wire, thus obtaining a tapering multi-electrode lead having a main proximal relatively thick lead segment, and a relatively thin distal lead segment, allowing catheterization of the cardiac sinus and the delivery of said electrode into a selected coronary venule, wherein a lumen of substantially constant diameter is retained through the lead making it possible to use a standard or tapered stylet in order to aid implantation and positioning of the lead.