Bio-impedance may be used for navigation systems to chronically implant pacing and defibrillation leads in the heart using a non-fluoroscopic position sensing unit (PSU). Such a system requires that a conductive material, such as a retractable helical tip-electrode, be exposed during implantation. Since...http://www.google.fr/patents/US8135467?utm_source=gb-gplus-shareBrevet US8135467 - Chronically-implantable active fixation medical electrical leads and related methods for non-fluoroscopic implantation
Chronically-implantable active fixation medical electrical leads and related ...
