MEDICAL IMPLANT DETACHMENT SYSTEMS

摘要

An implant assembly (14), comprising:
an elongated pusher member (18) having a proximal end (24) and a distal end (26), the pusher member including a stiffening member (80) and a first and a second electrically conductive sheath, each disposed over the stiffening member;
an implantable device mounted to the distal end of the pusher member;
an electrolytically severable joint (20) disposed on the pusher member, wherein the implantable device detaches from the pusher member when the severable joint is severed;
a return electrode (86) disposed on the distal end of the pusher member;
a first terminal (28) disposed on the proximal end of the pusher member, wherein a first electrically conductive path extends between the first terminal and the severable joint, the first electrically conductive path including the first electrically conductive sheath; and
a second terminal (30) disposed on the proximal end of the pusher member, wherein a second electrically conductive path extends between the second terminal and the return electrode, the second electrically conductive path including the second electrically conductive sheath.