Process for the manufacture of suture needles and needles produc

Details Process for the manufacture of suture needles and needles produc Process for the manufacture of suture needles and needles produc

1993-10-20

1998-12-29

Jackson, Gary

Surgery

Instruments

Suturing needle

163 5, A61B 1704, B21G 318

Patent

active

058534237

ABSTRACT:
A process for the manufacture of suture needles and, more particularly, a process for enhancing the physical strength of the suture needles through an expedient cold-working or cold-forming procedure. Also disclosed is the provision of a novel and physically strengthened suture needle, particularly a surgical suture needle possessing a curvilinear configuration wherein the cross-sectional configuration of the needle is cold-formed into varying shapes in order to produce a needle having superior physical characteristics and strengths imparted thereto through the inventive process. The needles are essentially cold formed, and which process includes the aspect of imparting to straight metal rods which are preferably constituted from stainless steel, manufacturing steps which include sharpening one end of rod severed segments so as to form the needle tip, thereafter curving the needle with the metal still being in a relatively ductile state, and subjecting the needle to a cold forming process, such as through the intermediary of pressure die molds or stamping, to produce varying cross-sectional shapes along the length of the needle.

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