SURGICAL CUTLERY AND MANUFACTURING METHOD THEREOF
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United States of America Patent
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Issued Date -
Dec 20, 2012
app pub date -
Feb 25, 2011
filing date -
Feb 25, 2010
priority date (Note) -
Abandoned
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Abstract
A surgical cutlery and a manufacturing method thereof, which prevent over-etching and reduce pierce resistance, are provided. The manufacturing method of the surgical cutlery made of a round bar material 15 of austenitic stainless steel with a fibrous structure includes the steps of: forming a working portion 16 of the cutlery from the round bar material 15 for piercing or cutting a living tissue, wherein the fibrous structure runs along an axis a; forming a wheel mark 24 on the working portion of the surgical cutlery; and etching the working portion 23 after etching. The etching is performed to the limit that allows creation of a plurality of craters on the working portion, but does not allow creation of grooves along the fibrous structure. Afterwards, application of silicone is performed on the resulting surface.
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