Conductive couplings, and components thereof, for medical electrical leads

A medical electrical lead, comprising:

• an outer insulation sidewall extending along a lead axis and having an outer diameter;
• a coupling component formed from a slug of conductive material and being entirely contained within the outer diameter of the outer insulation sidewall, the coupling component including a crimping recess extending along one side of the component and a thickened portion offset laterally from the recess and having a welding surface displaced laterally from the crimping recess,
• an electrode component mounted around the outer insulation sidewall, the electrode component including a first portion defining an electrode surface and a second portion extending from the first portion to within the outer diameter of the outer insulation sidewall and over the welding surface of the coupling component and being welded thereto, wherein the crimping recess comprises a crimp groove located between first and second arms extending laterally from the thickened portion and wherein the length of the conductor, about which the arms of the coupling component are crimped, extends in a direction transverse to the lead axis and wherein the thickened portion of the coupling component extends from the arms in direction parallel to the lead axis.

A medical electrical lead, comprising:

• an outer insulation sidewall extending along a lead axis and having an outer diameter;
• a coupling component formed from a slug of conductive material and being entirely contained within the outer diameter of the outer insulation sidewall, the coupling component including a crimping recess extending along one side of the component and a thickened portion offset laterally from the crimping recess and having a welding surface displaced laterally from the crimping recess,
• an electrode component mounted around the outer insulation sidewall, the electrode component including a first portion defining an electrode surface and a second portion extending from the first portion to within the outer diameter of the outer insulation sidewall and over the welding surface of the coupling component and being welded thereto, wherein the crimping recess comprises a crimp groove located between first and second arms extending laterally from the thickened portion, wherein the thickened portion comprises at least one groove therein in which the second portion of the electrode is located and wherein the at least one groove extends orthogonally with respect to the crimping.