Bending method of medical suturing needle

Abstract

There is provided a method of bending a medical suturing needle curved at different curvature radii in a length direction more reasonably. A bending method which curves a medical suturing needle at different curvature radii (r, R) in a length direction, wherein molded surfacestocorresponding to the curved shape of a suturing needle A curved at different curvature radii in a length direction on the outer circumferential surface of a reciprocatively rotated bending dieare formed, the outer circumferential surface of the bending dieand a press rollinterpose a belthaving flexibility therebetween and are relatively pressed, a rod-shaped materialis interposed into between the outer circumferential surface of the bending dieand the beltat a point P where the outer circumferential surface of the bending die and the press rollare pressed, the bending die is reciprocatively rotated in a winding direction (in the direction indicated by the arrow a) and in a rewinding direction (in the direction indicated by the arrow b), and the materialis curved at different curvature radii in a length direction.