Fish & Richardson
Method and apparatus for manufacturing surgical needle
 In a surgical needle, marks of welding are left as they are on a welded portion between needle and pipe members so that the welded portion has a surface distinguishable from peripheral surfaces of the respective needle and pipe members. The welded portion may be composed of a plurality of peripherally spaced welded parts. In a manufacturing method of the surgical needle, a beam energy is applied from a beam energy emitting arrangement, toward an abutting line between the needle and pipe members, from a direction substantially perpendicular to the needle and pipe members, thereby welding them to each other. In a manufacturing apparatus, a rotational support arrangement is provided for supporting the needle and pipe members in such a manner that end faces of the respective needle and pipe members are abutted against each other at a location coincident with an optical axis of the laser beam, and for rotating the needle and pipe members about their respective axes. 
Matsutani Seisakusho Co., Ltd.
B A A A
B23K A61B A61B A61B
inventional additional inventional inventional
Yoshimasa Kanji Masamitsu Tadashi
Tochimura Matsutani Matsutani Otsuka