An implant, in particular an intraluminal endoprosthesis, with an open-worked, hollow cylindrical andor hollow conical main structure, wherein the main structure can adopt a compressed state or an expanded state. Methods rely in part upon the physical association, e. The first entrainment means is arranged in such a way that, upon rotation of the bolt shaft and the first part in a first direction, the second part is entrained in the first direction, and, upon rotation of the bolt shaft and the first part in a second direction, opposite to the first direction, the second part remains stationary. The conductive layer reduces the resistance for currents in the radio frequency range flowing close to the edges of the die due to the skin effect.