Importance

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Abstract

An improvement to a thrombectomy apparatus for breaking up thrombus or other obstructive material in a lumen of a vascular graft or vessel having a wire and flexible sheath relatively movable, wherein the wire is sinuous in configuration and assumes its sinuous configuration when in the deployed configuration and has a straighter configuration in the first configuration. The wire is operatively connected to a motor for rotation of the wire to enable peaks of the sinuous wire to contact a wall of the lumen to break up the thrombus or other obstructive material. The improvement to the thrombectomy apparatus comprises the wire being formed of an inner core formed by a plurality of twisted wires and an outer wire wound directly around the inner core, wherein a distal portion of the outer wire extends distal of the inner core and progressively tapers towards a distal end to form a tapered region.

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First Claim