During fabrication of an electrical medical lead, a cut end of a stranded wire conductor is subjected to electrical current sufficient to heat and weld the strands together upon discharge of a high voltage between the cut end and a ground metal plate formed of a material of the stranded wire conductor....http://www.google.de/patents/US7168165?utm_source=gb-gplus-sharePatent US7168165 - Fabrication of electrical medical leads employing multi-filar wire conductors
