Patent ID: 6378351
Filing Date: 2002-04-30
Classification: A61B,B21D

Abstract:
A method for manufacturing a biopsy forceps cup for an endoscope in which a spoon-shaped forceps cup is formed by drawing a metal plate blank by a press, said method comprising:forming a first cut on said metal plate blank, wherein said first cut surrounds a contour of a portion of said metal plate blank defining a forceps cup blank corresponding to said forceps cup, and said first cut is disconnected by a first connection portion that is formed close to an end of the arm portion of said forceps cup and by a second connection portion and a third connection portion that are formed close to a plurality of side portions of said forceps cup; forming a second cut on said metal plate blank, wherein said second cut surrounds said first cut, said second cut being discontinued by a plurality of second connection portions; and carrying out a drawing operation on said metal plate blank to produce said forceps cup while each of said first and second connection portions remain connected with respective neighboring portions defined by each respective said first and second cuts.