Implant or medical tool made of a metal

A therapeutic method, comprising treating microbial infection caused by bacteria on an implant in a human or animal body with oxidizing products having antimicrobial action that have been produced on an implant made of a metal or having a surface made of a metal, wherein the implant has, on its/the surface, a coating with polycrystalline doped electrically conductive diamond, wherein the therapeutic treatment comprises the generation of the products having antimicrobial action directly on the implant, wherein the products having antimicrobial action are C2O62−, S2O82− and/or P2O84− ions,

• wherein the implant is connected as anode in an electrochemical system in the body, wherein the electrochemical system comprises, in addition to the anode, a cathode, a power source connected in an electrically conductive manner to the anode and to the cathode, and an electrolyte comprising or consisting of a body fluid, or consists of the anode, a cathode, a power source connected in an electrically conductive manner to the anode and to the cathode, and an electrolyte comprising or consisting of a body fluid, or
• wherein the implant is disposed within an electrical field, by means of which a negative charge is induced at a first site and a positive charge at a second site by induction on the implant, by means of which the first site becomes the anode in an electrochemical system and the second site becomes the cathode in the electrochemical system, wherein the electrochemical system comprises, in addition to the implant, an electrolyte comprising or consisting of a body fluid or consists of the implant and an electrolyte comprising or consisting of a body fluid, wherein an anodic electrode potential in the range of 1.80 V to 2.07 V is applied to the electrochemical system in order to generate the C2O82−, S2O82− and/or P2O84− ions directly on the implant.