ENDOVASCULAR DETACHMENT SYSTEM WITH FLEXIBLE DISTAL END AND HEATER ACTIVATED DETACHMENT

摘要

An endovascular surgical tool may include a flexible, electrically-conductive delivery tube, a return conductor, a resistive heating element attached to the distal end of the delivery tube, and a therapeutic payload attached to a loop of the resistive heating element by a coil connecting member. The delivery tube may include at least one segment at its distal end which includes a plurality of transverse slots. Each slot of the plurality of slots includes an origin on the perimeter of the delivery tube, a terminus closer to a central axis of the delivery tube than the origin, and a depth between the origin and terminus. The origins of at least two slots of the plurality of slots may be located at different angular positions relative to the central axis. The return conductor may be electrically insulated from and positioned within the delivery tube.