In a method for isolating a passivation, an isolating wall is arranged along the circumference of at least one opening created in a predetermined way in the passivation. A resultant passivation system has an electrically and/or fluid-tightly and/or gas-tightly isolating wall along the circumference of at least the opening created in a predetermined way in the passivation. The isolating wall of a predetermined thickness along a circumference of an opening produced in a predetermined way in a passivation of a medical implant advantageously provides an isolation of the passivation or components of the same with respect to electricity and/or liquid acting on the passivation or the components of the same from the opening.
