#$%^&*AU2009212829B220121220.pdf#####ABSTRACT A device for removing an obstruction in a blood vessel comprises an obstruction engaging coil extending from an insertion element. The coil is movable between a straightened arrangement and an expanded arrangement. The obstruction engaging coil is formed of a solid shape memory material such as a superelastic material and is an elongate element with one end connected to the distal end of the insertion element and extending from the insertion element to a distal end. The obstruction engaging coil is naturally biased toward the expanded arrangement. The obstruction engaging coil has a generally conical shape when in the expanded arrangement. A free end of the obstruction engaging coil forms a tip of the conical shape when in the expanded arrangement.
