MODIFIED GUIDEWIRE FOR LEFT VENTRICULAR ACCESS LEAD

摘要

An improved guide wire (20) for assisting in implantation of a cardiac lead includes three sections (22, 24, 26). The most distal zone (22) is sufficiently floppy to prevent trauma to the vessel walls through which the guide wire (20), and lead are inserted. An intermediate zone (24) is general ly stiffer, and has a cross section less than or equal to the cross section of the distal zone (22). The third zone (26) is stiffer yet, and is joined to t he intermediate zone by a shoulder (34) to transfer force to the lead.