Patent ID: 7239924

Claim:
An implantable electrode line comprising: a proximal end; a distal end; an outer electrode line surface; and an electrode line longitudinal axis, wherein the electrode line in a region of the distal end includes a surface region with a microstructure, the surface region being provided for lateral contact with a vessel wall and being arranged at a spacing relative to the distal end which measures a plurality of electrode line diameters, and wherein the microstructure is formed by a plurality of microstructure elements which are arranged on the electrode line surface and which are distributed over the surface region both in a longitudinal direction and also, in a peripheral direction and which have a component extending radially, wherein the microstructure elements arc of a radial extent which is a fraction of the electrode line diameter and are adapted, upon contact with a vessel wall, to counteract displacement of the electrode line along the electrode line longitudinal axis, and wherein the microstructure elements are in the form of knobs which are adapted to cling to a vessel wall by adhesion and wherein the knobs are in the form of suction cups.