What does the term “passivation” refer to in the context of surgical instrument manufacturing?

The term "passivation" in the context of surgical instrument manufacturing specifically refers to the process of creating a protective oxide layer on the surface of stainless steel instruments. This layer is formed through chemical treatments, typically involving exposure to certain acids or electrolytic processes, which enhances the corrosion resistance of the stainless steel. The passivation layer helps protect surgical instruments from rust, tarnishing, and other environmental factors that could compromise their integrity and safety. By ensuring that instruments have this protective layer, manufacturers promote longevity and reliability in surgical settings, allowing for safer patient care.