| 主权项 |
1. A stimulation lead, comprising:
a lead body comprising a longitudinal length, a distal portion, and a proximal portion; a plurality of terminals disposed along the proximal portion of the lead body; an electrode carrier coupled to, or disposed along, the distal portion of the lead body, the electrode carrier having an outer surface, the electrode carrier comprising
a central lumen, anda stimulation region defining a plurality of segmented-electrode-receiving apertures extending between the outer surface and the central lumen, wherein the stimulation region is formed of a non-conductive material, and wherein, for each of the segmented-electrode-receiving apertures, a ledge is disposed around a perimeter of that segmented-electrode-receiving aperture, the ledge inset from the outer surface of the electrode carrier; a plurality of electrodes comprising a plurality of segmented electrodes each having an outer stimulation surface, an opposing inner surface, and sidewalls connecting the outer stimulation surface to the inner surface, each of the segmented electrodes extending around no more than 75% of a circumference of the lead, each of the segmented electrodes disposed in a different one of the segmented-electrode-receiving apertures of the electrode carrier with the outer stimulation surface exposed through the segmented-electrode-receiving aperture and the inner surface abutting the ledge disposed around the perimeter of that segmented-electrode-receiving aperture; and a plurality of conductive wires extending along the lead body and coupling the plurality of electrodes to the plurality of terminals. |
