Tool used as an operating instrument for investigating humans and animals comprises a working section consisting partially of ceramic and/or metallic base material covered by a barrier layer made from silicon dioxide

摘要

Tool comprises a working section (2) consisting partially of ceramic and/or metallic base material covered by a barrier layer made from silicon dioxide. An Independent claim is also included for an implant made partially from ceramic and/or metallic base material covered by a barrier layer made from silicon dioxide. Preferred Features: The base material is made from a ceramic, metal, metal alloy and/or metal compound, especially aluminum, aluminum compound, aluminum alloy and/or their mixtures. The barrier layer is impermeable for the base material, ions formed from it and/or bodily fluids.