CPC A61N 1/3605 (2013.01) [A61B 90/39 (2016.02); A61N 1/05 (2013.01); A61B 2090/363 (2016.02); A61B 2090/3966 (2016.02); A61B 2090/3983 (2016.02)] | 17 Claims |
7. An implantable lead comprising:
an elongated lead body extending along a longitudinal axis and having a proximal end and a distal end;
a plurality of electrodes disposed about a circumference of the lead body at the distal end and spaced apart from one another along the longitudinal axis; and
a fiducial marker disposed about at least a portion of the circumference of the lead body at the distal end, the fiducial marker disposed at a known position relative to the plurality of electrodes and having a structure with an asymmetrical shape about the longitudinal axis when viewed in any radial direction from the longitudinal axis so as to provide a unique radioscopic silhouette in any radial direction, the fiducial marker including a proximal portion, a distal portion, and a central portion extending between the proximal portion and the distal portion;
the proximal portion comprising a band;
the distal portion comprising a segment extending parallel to the longitudinal axis; and
the central portion comprising a helically-shaped element connected between the band and the segment.
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