Patent ID: 7657325
Filing Date: 2010-02-02
Classification: A61N

Abstract:
1. An implantable medical lead comprising: an elongated body extending between a proximal end and a distal end; and a helical fixation member configured to fix the implantable medical lead at an implant site and extending from the distal end of the elongated body, the helical fixation member having windings with a circumference that is concentric about a center axis, the helical member defining an inner surface and an outer surface, the helical fixation member terminating in an end winding that is cross cut from the inner surface to the outer surface to form a tissue-piercing distal tip, the tip being configured with a single facet defined by a first cut surface positioned along the inner surface of the end winding, and wherein the tip is configured to have a round surface along the outer surface opposite the first cut single facet surface.