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Tissue ablation device

2015 
PROBLEM TO BE SOLVED: To provide a tissue excision instrument capable of excising easily and accurately a desired biological tissue.SOLUTION: A tissue excision instrument 1 including a hollow external cylinder 10, and a helicoid conveyance member 30 provided rotatably in the external cylinder 10, in which the external cylinder 10 has an opening part 11 formed on the outer peripheral surface of a tip part, and a tissue is cut by an edge part 30a formed along the outer edge of the conveyance member 30, in the exposed state from the opening part 11, the external cylinder 10 includes an engaging piece 12a engageable with the tissue in connection with the tip part 11a of the opening part 11.SELECTED DRAWING: Figure 3
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