Patent ID: 8321034

Claim:
A implantable medical electrical stimulation lead ( 5 ) including a coaxial lead structure with: a. an inner supply lead ( 6 ), b. an outer supply lead ( 9 ) situated radially outwardly from, and being electrically insulated from, the inner supply lead ( 6 ), and c. first and second electrodes ( 2 , 4 ) provided at or near to a distal end of the lead structure, wherein one of the first and second electrodes ( 2 , 4 ) is movable with respect to the other about the axis of the lead structure, wherein: (1) the first electrode ( 2 ) is situated at a distal tip of the lead structure, (2) the second electrode ( 4 ) is situated proximally from the first electrode ( 2 ), (3) the inner supply lead ( 6 ) is electrically connected to the second electrode ( 4 ) via a second radially-extending connection, (4) the outer supply lead ( 9 ) is electrically connected to the first electrode ( 2 ) via a first radially-extending connection, (5) the first and second radially-extending connections both extend across regions having the same radial spacing from the axis of the lead structure.