Manufacturing method for biopsy forceps cup used in endoscope, by squeezing metallic board material, then cutting forceps cup from board material so that verge of opening of cup has blade-like form

摘要

The method begins by squeezing a metallic board material using a press machine. A portion of the metallic board material, corresponding to a forceps cup (4), is cut from the rest of the board material. The verge of opening of the forceps cup assumes a blade like shape, after the cutting process.