Lead with textured insulative layer

摘要

Described is a medical device lead including a lead body having a conductor lumen including an inner surface. The lead also includes a conductor assembly extending through the conductor lumen; the conductor assembly comprising a conductor member and an outer insulative layer; and an electrode coupled to the conductor cable. The outer insulative layer includes a textured external surface that reduces the coefficient of friction between the outer insulative layer and the inner surface of the conductor lumen through which the conductor assembly extends. Methods of forming the conductor assembly are also described.

主权项

1. An implantable medical lead comprising:
a lead body having a conductor lumen having a substantially smooth inner surface; a conductor assembly extending through the conductor lumen, the conductor assembly including a conductor member and an outer insulative layer disposed about the conductor member, the outer insulative layer including a textured external surface; and an electrode on the lead body coupled to the conductor member, wherein the textured external surface has a surface roughness average greater than 16 microinches and the inner surface of the conductor lumen has a surface roughness average less than 10 microinches.