Segmented electrode leads formed from pre-electrodes with depressions or apertures and methods of making and using

摘要

A pre-electrode for a stimulation lead includes a generally cylindrical body having an exterior surface, an interior surface, a proximal end, and a distal end. The body includes segmented electrodes disposed along the body in a spaced-apart configuration, connecting material coupling each of the segmented electrodes to one another and forming the exterior surface of the body, and cutouts defined between adjacent segmented electrodes. In some instances, the pre-electrode includes at least one depression in the exterior surface of the pre-electrode over one of the segmented electrode so that the pre-electrode is thinner at the depression than at immediately adjacent portions of the pre-electrode. In some instances, the pre-electrode includes at least one aperture extending into the body from the exterior surface and between two of the segmented electrodes with portions of the connecting material forming borders between the aperture and the proximal and distal ends of the pre-electrode.

主权项

1. A pre-electrode for a stimulation lead, the pre-electrode comprising:
a generally cylindrical body comprising an exterior surface, an interior surface opposite the exterior surface, a proximal end, and a distal end, the body comprising
a plurality of segmented electrodes disposed along the body in a spaced-apart configuration, each of the plurality of segmented electrodes having opposing side-walls extending between the proximal end and the distal end of the body,connecting material coupling each of the plurality of segmented electrodes to one another and forming the exterior surface of the body,a plurality of cutouts defined between adjacent segmented electrodes of the plurality of segmented electrodes, andfor each segmented electrode of the plurality of segmented electrodes, a depression in the exterior surface of the pre-electrode over the segmented electrode so that the pre-electrode is thinner at the depression than at immediately adjacent portions of the pre-electrode, wherein each depression has a circular cross-section.