Patent ID: 8062317

Claim:
A thrombectomy apparatus for breaking up thrombus or other obstructive material comprising a handle, a sheath, a battery, a motor powered by the battery, and a sinuous thrombectomy wire having first and second outer wires wound to form a coil, a blunt elongated flexible tip, a metal tip for connecting the flexible tip to the coil, and an inner core composed of a material to limit the compressibility of the coil, at least at a distal tip turns of the first wire occupy a space between adjacent turns of the second wire forming a closed pitch, the coil having a sinuous portion and surrounding at least a distal region of the inner core, the inner core having a sinuous portion within the sinuous portion of the coil, the sinuous portion of the inner core and the coil movable from a straighter configuration within the sheath for delivery to a sinuous configuration when exposed from the sheath wherein a portion of the metal tip extends over the outer wires, the metal tip extending distally for a first distance from a distal end of the coil, and the flexible tip is positioned over the metal tip and extends distally therefrom a second distance, the second distance exceeding the first distance.