| 摘要 |
PROBLEM TO BE SOLVED: To provide scissors for an endoscope, the scissors being capable of accurately cutting a targeted biological tissue without slippage of a scissor piece and allowing a low invasive procedure that does not cut the biological tissue to an excessive depth extending to, for example, a muscular coat.SOLUTION: Scissors 100 for an endoscope are configured to be inserted in a forceps hole of the endoscope to cut a biological tissue. The scissors includes one pair of scissor pieces 12, 22 overlapping each other and pivotally supported in an openable manner with a rotation shaft 29 extending in an overlapping direction, and an operation wire 30. The scissor pieces 12, 22 have cutting edges 13, 23 to grip and cut a biological tissue, respectively. At least one of the scissor pieces 12, 22 is provided with a pawl 14 formed at a tip thereof so as to protrude from the cutting edge 13 toward a closing direction for griping the biological tissue. The cutting edges 13, 23 of the scissor pieces 12, 22 is provided with recesses 15, 25 partially formed so as to penetrate in a thickness direction. The cutting edges 13, 23 excluding the pawl 14 and the recesses 15, 25 are formed in a straight linear shape elongating from a distal to a proximal end.SELECTED DRAWING: Figure 3 |
