ORIENTATION MARKER FOR IMPLANTABLE LEADS AND LEADS, SYSTEMS, AND METHODS UTILIZING THE ORIENTATION MARKER

摘要

An implantable electrical stimulation lead includes a lead body; terminals disposed along the proximal portion of the lead body; electrodes disposed along the distal portion of the lead body, the electrodes including at least one segmented electrode; and an asymmetric marker disposed along the distal portion of the lead body and including a first ring and a longitudinal band extending longitudinally from the first ring. The asymmetric marker and lead body are formed of different materials that are distinguishable from each other in the radiological images to facilitate radiological determination of the rotational orientation of the lead when implanted. The marker may also include one or more of a longitudinal extension, a second ring, and non-straight longitudinal edges. The marker may also include the longitudinal band and longitudinal extension without a ring.