作者: Charles McNall , William John Olson
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摘要: A dual-tip catheter equipped with both a rotating cutting bit and cavity for probing guidewire tip passage through chronic total occlusions or other refractory atherosclerotic plaque from diseased arteries. The catheter's reside safely within an outer protective sheath head when not in use, alternately either the will protrude out of same distal opening as needed. By first drilling occlusions, then inserting into occlusion formed by bit, can force past occlusion. After has been fully inserted, be withdrawn, alternate inserted directed up to site, where perform further enlargement therapeutic activity.