Medical scissors with wear-reducing coating
AssigneeGottfried Hipp
InventorsGottfried Hipp, Bernhard Schröder, Michael Sellschopp, Günter Durst
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Abstract
Medical scissors have handle parts and blades and are characterized in that they are coated, at least in the area of the blades, with an amorphous thin layer containing silicon, carbon and hydrogen, where the proportion of silicon is up to 100% atom parts in the boundary layer to the metallic body of the scissors, and up to 30% atom parts in the area of the outer surface of the layer.
Claims13
A medical scissors of a pair of scissors halves, each of said halves having a cutting edge, wherein said scissors are coated, at least in an area of said cutting edges with an amorphous thin layer containing silicon, carbon and hydrogen, and wherein a decreasing content of silicon is present in a direction from a boundary layer to a metallic body of said scissors to the outer surface of said layer.
A method for producing medical scissors having a pair of scissors halves, each of said halves having a cutting edge characterized by precision-working of a metallic base of said scissors, coating said metallic base, at least in an area of said cutting edges with a thin amorphous layer containing silicon, carbon and hydrogen in such a way that a content of silicon at a boundary surface to said metallic base is approximately 10 to 100% atom parts and a silicon content in an area of an outer surface of said layer is up to 30% atom parts silicon.
Dependencies are inferred from the claim text.