Patent ID: 8386057

Claim:
An electrode for interventional purposes, such as a cardiac pacemaker, neurostimulation, or ICD electrode or EP catheter comprising: an elongate electrode body ( 6 ) having a distal end ( 4 ) and a proximal end ( 3 ) having a proximal electrode; at least one electrode pole ( 5 ) in an area of the distal end ( 4 ) of the elongate electrode body ( 6 ) configured to deliver an intervention pulse; at least one supply line ( 7 ), that is insulated within the elongate electrode body ( 6 ), and which is coupled to the at least one electrode pole ( 5 ), wherein said at least one supply line ( 7 ) comprises a first material; an electrode sheath ( 8 ) configured to directly contact both a body in which said elongate electrode body is implanted and said at least one supply line wherein said electrode sheath encloses the at least one supply line ( 7 ), and wherein said electrode sheath comprises a second material wherein the first and/or second material contains conductive particles embedded in a polymer matrix in a concentration which is greater than or equal to a percolation threshold, and wherein at least said electrode sheath is configured to degrade an antenna characteristic of said electrode as a function of changing incident frequency to limit current concentrations and excess heating at said at least one electrode pole.