SURFACE COATING FOR A MEDICAL INSTRUMENT, MEDICAL INSTRUMENT WITH A SURFACE COATING AND METHOD FOR PRODUCING A SURFACE COATING FOR A MEDICAL INSTRUMENT

摘要

The invention relates to a surface coating (1) for a medical instrument (2) comprising an interference filter having at least one dielectric layer (11) and at least one metallic layer (12, 12-1, 12-2) arranged one above the other , includes. In this case, the surface coating (1) has a first spectral reflectance (41) in a first state, and the at least one metallic layer (12, 12-1, 12-2) and / or the at least one dielectric layer (11) is formed be structurally altered by the influence of a corrosive environment on the surface coating (1), whereby the surface coating (1) can be converted into a second state. In this case, the surface coating (1) in the second state has a second spectral reflectance (42) different from the first spectral reflectance (41).