Sterile surgical needle having dark non-reflective surface
AssigneeEthicon, Inc.
InventorsLee Bendel, Florence Stoffel
Life of this patent
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Abstract
A sterile surgical needle having a dark, non-reflective and non-flaking surface. The needle is produced by selecting an appropriately shaped needle having the desired degree of sharpness. The needle is treated to activate the surface and then immersed in a solution of sulfuric acid, potassium dichromate and water to form a dark, non-reflective, non-flaking surface. The needle is sterilized to produce a sterile surgical needle of improved visibility.
Claims1
A chromium containing stainless steel, sterile surgical needle, said needle having a uniform black and non-reflective surface and said needle having penetration characteristics substantially the same as a sterile surgical needle having a shiny and polished surface.
Dependencies are inferred from the claim text.