Smith Patent Office
Bending method of medical suturing needle
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 surfaces 11a to 11c corresponding 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 die 11 are formed, the outer circumferential surface of the bending die 11 and a press roll 14 interpose a belt 12 having flexibility therebetween and are relatively pressed, a rod-shaped material 1 is interposed into between the outer circumferential surface of the bending die 11 and the belt 12 at a point P where the outer circumferential surface of the bending die and the press roll 14 are 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 material 1 is curved at different curvature radii in a length direction.
MANI, Inc.
B B B
B21G B21F B21G
inventional inventional inventional
Kanji Kazuaki Tadashi
Matsutani Kato Otsuka