Patent ID: 8141246

Claim:
A method for mechanically and electrically joining portions of a medical lead comprising: providing a fitting defining a first cavity and a second cavity; providing an elongate conductor having a distal portion including an inner conductive member and an outer electrically insulative member, the first cavity sized and configured to receive the distal portion; disposing the distal portion of the elongate conductor in the first cavity; providing a coiled conductor having one or more filars having a biocompatible outer surface, the second cavity sized and configured to receive an end portion of the one or more filars; disposing the end portion of the one or more filars in the second cavity; displacing a portion of the insulative member with ultrasonic energy to electronically couple the fitting and the inner conductive member; and welding at least a part of the distal portion of the elongate conductor to the fitting with ultrasonic energy.