Medtronic, Inc.

Jonathan A Hughes

Kevin R Seifert

Gregory A Boser

Michael R Dollimer

An implantable lead connector assembly includes contact rings, and a bulk of insulation, which includes sealing surfaces and a shank defining a distal end of the bulk. One or more conductor pins extend within the bulk and have distal ends protruding distally therefrom to be exposed alongside the shank; and an inner surface of each contact ring may have a proximal end of a corresponding conductor pin coupled thereto. The sealing surfaces, in conjunction with outer contact surfaces of the contact rings, which are interspersed therebetween, define a uniform outer diameter for the connector assembly. The bulk of insulation may be formed in two parts, wherein a primary bulk is formed around a core and includes circuit-support and shank segments. A secondary bulk, which includes the aforementioned sealing surfaces, is injection molded around the primary bulk, after positioning the contact rings and corresponding conductor pins on the circuit-support segment thereof.

Implantable medical electrical lead connector assemblies and methods of manufacture

An implantable lead connector assembly includes core and contact circuits held together and isolated from one another by insulation. The core circuit includes a conductive core and a conductor pin, which has a proximal end coupled to an outer surface of the core, and a distal end spaced outward from the outer surface and protruding distally from the insulation. Insulation sealing surfaces extend on either side of an outer contact surface of each contact circuit, and the sealing and contact surfaces define a uniform outer diameter of the assembly. A conductor pin of each contact circuit has a proximal end coupled to an inner surface of a contact ring of the corresponding circuit, and a distal end that protrudes distally from the insulation. The insulation may be formed by injection molding, and then outer surfaces of the molded insulation and contact ring(s) are ground down to the uniform outer diameter.

Implantable medical electrical lead connectors, assemblies thereof, and methods of manufacture

An inner surface of a coupling component sidewall forms first and second portions of a cavity of the coupling component. A conductive coupling between an electrode and a conductor of a medical electrical lead may be formed by inserting a segment of the conductor into the first portion of the cavity, crimping the sidewall of the coupling component around the inserted segment, inserting a segment of the electrode into the second portion of the cavity, and welding an edge of the sidewall to the inserted electrode segment. The edge of the sidewall may define a slot, extending between first and second portions of the cavity, or a hole extending through the sidewall. The electrode may be part of an electrode assembly, mounted around an inner insulation layer of the lead, and the conductor may be part of a conductor assembly extending between inner and outer insulation layers of the lead.

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Blaine, MN, United States of America

Jonathan A Hughes