Surgical needle and mold for manufacturing the same
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United States of America Patent
Stats
-
May 12, 1998
Grant Date -
N/A
app pub date -
Mar 7, 1995
filing date -
Aug 23, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A surgical needle has a top edge formed by two pressed faces located inside or outside of curvature from pressing a material blank made of austenitic stainless steel having fibrous texture and cutting edges formed on both sides of a base. The top edge is sharp at a needle point and the sharp needle point is constituted of fibrous texture formed at the surface layer of the material blank. Grinding marks extending crosswise formed on the face of the mold are transferred to the pressed faces. A mold constitutes plural faces forming projecting angles (angle between two intersecting faces is 180.degree. or below, and the line at which the two faces intersect is made as a projecting line) along edges of the blocks made of two rectangular prisms, and constitutes a cavity by suitably contacting the edges of the blocks.
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Family
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Cited Art Landscape
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