Patent ID: 8332051
Filing Date: 2012-12-11
Classification: A61N,A61P

Abstract:
1. An electrical medical lead adapted to be implanted within the body at an implantation site to conduct electrical stimulation from an implantable stimulator to the site and to conduct electrical signals of the body from the site to the implantable or external stimulator comprising: an elongated lead body extending from a lead body proximal end to a lead body distal end; a lead connector element at the lead body proximal end; a lead conductor enclosed within the lead body and electrically coupled to the first lead connector element; an active fixation helix attached to the lead body distal end electrically coupled to the lead conductor, a continuous coating of insulation extending without interruption from the helix attachment end to the helix tip covering only an inner helical surface of each of the coil turns and disposed to face inward toward the helix lumen; wherein at least a portion of an outer helical surface extending along the helix outer diameter each coil turn is uninsulated and facing opposite the inner helical surface covered by the layer of insulation.