Patent ID: 8224456
Filing Date: 2012-07-17
Classification: A61N

Abstract:
1. A stimulation lead for applying electrical pulses to tissue of a patient, comprising: a lead body of an insulative material; a plurality of conductors within the lead body; a plurality of terminals at a proximal end of the lead body for electrically coupling with a pulse generator; a plurality of electrodes at a distal end of the lead body for applying electrical pulses to tissue of the patient, each of the plurality of electrodes circumscribing the lead body; an insulative member disposed over the plurality of electrodes, the insulative member having a respective opening for each of the plurality of electrodes that only exposes a limited angular range of each electrode; and a marking structure for determining an angular orientation of the lead body, the marking structure disposed to at least partially circumscribe the lead body, wherein the marking structure comprises a radio-opaque portion such that an edge of the marking structure between the radio-opaque portion and a non-radio-opaque portion is substantially aligned with a mid-line of the exposed angular range of each electrode of the plurality of electrodes.