| 摘要 |
PROBLEM TO BE SOLVED: To prevent slip prevention devices provided on a snare wire from displacing or coming off, manufacture easily, and obtain stable quality by cutting some strands of the snare wire halfway and projecting cut ends inwardly from a loop. SOLUTION: One of three strands of a twisted wire forming a snare wire 3 is cut halfway and both cut ends 3a are projected inwardly from a loop. The strand to be cut may be same or different in the two cut portions 5. To stabilize the direction of projection of the cut ends 3a of the strand, in the cut portions 5 of the strand, preferably the cut strand and non-cut strands are fastened to each other to prevent them from fraying. The part including the cut portions 5 of the strand may be fastened by silver soldering or the parts before and after the cut portions 5 of the strand may be spot welded. |
