Stamped clevis for endoscopic instruments and method of making t

Details Stamped clevis for endoscopic instruments and method of making t Stamped clevis for endoscopic instruments and method of making t

1995-10-10

1998-02-10

Buiz, Michael

Surgery

Instruments

Forceps

606205, 128751, A61B 1728

Patent

active

057163740

ABSTRACT:
A stamped clevis is made from a stainless steel sheet which is cut (stamped) to form at least one relatively narrow distally extending arm and at least one relatively broad proximal base. The distal arm is provided with at least one mounting hole for receiving an axle pin and the proximal portion is wrapped to form a cylinder or a broken cylinder. In one embodiment, the sheet is cut to form two relatively broad proximal bases and two relatively narrow substantially parallel distal arms, one arm extending from each base and being provided with a mounting hole. The arms are joined by a cross member proximal of the mounting holes and a central tab having a third mounting hole extends distally from the cross member. The cut sheet is formed by bending the cross member on either side of the tab in an "S" configuration so that the mounting holes are aligned substantially coaxially. The two proximal bases are bent towards each other to form a bifurcated cylinder. The tab may be provided with an integral spike. In another embodiment, the sheet is cut to form a central tab with a mounting hole and a distally extending spike and a pair of relatively broad proximal bases. The bases are bent in opposite directions to form a substantially cylindrical member having an "S-shaped" section adjacent to the central tab. In another embodiment two arms extend from a single base.

REFERENCES:
patent: 1502133 (1924-07-01), Anderson
patent: 2793028 (1957-05-01), Wheeler
patent: 4971067 (1990-11-01), Bolduc et al.
patent: 5172700 (1992-12-01), Bencini et al.
patent: 5238002 (1993-08-01), Devlin et al.
patent: 5267998 (1993-12-01), Hagen

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