Patent ID: 6181972
Filing Date: 2001-01-30
Classification: A61N

Abstract:
A lead for an active implantable medical device having an electrical conductor, comprising:a cylindrical body having a distal end, an extremity, and a contact surface on said extremity, the body being made of an electrically insulated material, anda stimulation electrode, connected to said lead conductor, wherein the stimulation electrode comprises at least one active element having an exposed extremity tip, said exposed extremity tip protruding from said body contact surface, said active element presenting on at least a part of its exposed extremity tip a radius of curvature less than 0.5 mm;wherein the active element further comprises a plurality of distinct protuberances mechanically interconnected, each protuberance having an exposed extremity tip protruding from the body, the exposed extremity tips of any two adjacent protuberances being separated by an interval defined by a part of the bode contact surface, andwherein the exposed extremity tips of the protuberances further comprises a hemispherical surface.