Patent ID: 8644952
Filing Date: 2014-02-04
Classification: A61L,A61N,C08G,Y10T

Abstract:
1. An implantable medical lead comprising: an elongated lead body comprising a lumen, at least one conductor disposed within the lumen and at least one electrode operatively coupled to the conductor and disposed along the lead body, wherein the lead body has a Shore hardness from about 30A to about 75D and comprises a polyisobutylene urethane, urea or urethane/urea copolymer comprising soft polymer segments and hard polymer segments; wherein the soft polymer segments comprise a polyisobutylene segment and at least one additional polymer segment comprising a residue of: a polyether diol, a fluorinated polyether diol, a fluoropolymer diol, a polyester diol, a polyacrylate diol, a polymethacrylate diol, a polysiloxane diol, a fluorinated polysiloxane diol, or a polycarbonate diol; and wherein a weight ratio of soft segments to hard segments in the copolymer ranges from 50:50 to 90:10.