PURPOSE: To prevent a damage from being generated through a bending die on a cutting edge by sticking elastic members on the cutting edge formed previously on a stock for a suturing needle.

CONSTITUTION: In bending, the cutting edge 1a formed on the stock a comes in contact with dies 3a, 3b through elastic members 2. In other words, the bending force given by the dies 3a, 3b to the stock (a) acts through the elastic members 2. For this purpose, the elastic members 2 works as a cushion and the bending force acts uniformly on the stock (a). Consequently, force does not act concentrically on the cutting edge 1a of the stock (a) and a damage such as a collapse and a burr is not generated on the cutting edge 1a.