Patent ID: 8571683
Filing Date: 2013-10-29
Classification: A61N,H03H

Abstract:
1. An implantable medical lead comprising: a resonant filter comprising an inductor having a parasitic capacitance, the inductor and parasitic capacitance forming a parallel resonant LC filter, the inductor having a first layer comprising: a first helical metallic member located on an elongated member, the first helical metallic member comprising a first terminal end located near a proximal end of the elongated member and a second terminal end located near a distal end of the elongated member; and a dielectric ceramic material coaxially covering the elongated member and the first helical metallic member, wherein the dielectric material between turns of the helical metallic member forms the parasitic capacitance and wherein the dielectric ceramic material encapsulates the first helical metallic member and includes first and second apertures located over the first and second terminal ends, respectively, of the first metallic helical member such that the terminal ends are accessible through the apertures; and a lead body including a lead connector end on a proximal end of the lead body and an electrode on a distal end of the lead body, the lead connector end including an electrical contact, the self resonant inductor supported on the lead body, the first terminal being in electrical communication with the electrical contact of the lead connector end via a first electrical pathway extending through the first aperture, the second terminal being in electrical communication with the electrode via a second electrical pathway extending through the second aperture.