Method of producing an acetabular reamer cup
AssigneeOthy, Inc.
InventorPaul E. Salyer
Life of this patent
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Abstract
A method for making an acetabular reamer cup and an acetabular reamer cup made thereby. The method comprises the steps of fabricating a bowl-shaped cup-blank having an outer surface, an inner surface and a rim, perforating a plurality of holes through the cup-blank, the holes each being surrounded by a margin, deforming outwardly a cutting portion of the margin of each of the holes, smoothing the outer surface of the cup-blank to sharpen the deformed cutting portions, raising cutting edges from the cutting portions and removing the rim. The cutting edges are disposed to cut upon rotation of the acetabular reamer. The cup manufactured by this method is preferred because of its improved strength and consistently superior cutting edges.
Claims16
A method for making an acetabular reamer cup for an acetabular reamer comprising the steps of:
- fabricating a bowl-shaped cup-blank having outer and inner bowl-shaped surface, perforating a plurality of holes through said cup-blank, said holes each being surrounded by a curved margin, deforming outwardly of one of said surface a cutting portion of said margin of each of said holes, said cutting portions being curved outwardly of said one surface, smoothing said one surface of said cup-blank to sharpen said cutting portions, and raising curved cutting edges from said cutting portions outwardly of said one surface, said cutting edges also being curved tangentially of said one surface and disposed to cut upon rotation of said acetabular reamer.
Dependencies are inferred from the claim text.