An apparatus for fixing a cardiac lead in place within the vasculature of the heart includes a coil having a normal helical shape and a stylet for holding the coil straight during insertion of the coil through a lumen of the lead. Upon retraction of the stylet, the coil returns to its helical shape along...http://www.google.es/patents/US6129750?utm_source=gb-gplus-sharePatente US6129750 - Fixation mechanism for a coronary venous pacing lead
Fixation mechanism for a coronary venous pacing lead
