Template for planning a placement of one or more portions of a medical device

A medical template for planning a placement of one or more device portions, wherein the one or more device portions are comprised in an associated device for neurostimulation,

• wherein the one or more device portions are arranged to be at least partially implantable subcutaneously, wherein the medical template comprises:
• one or more template portions corresponding to the one or more device portions, the one or more template portions comprising a first template face, arranged to be placed adjacent to one or more outer skin portions of one or more body parts;
• wherein the one or more outer skin portions are at least partially comprised in a curved skin plane;
• wherein the first template face is arranged to extend longitudinally and to allow longitudinal curvature such that the first template face is mostly longitudinally comprised in a curved template plane;
• wherein the curved template plane is arranged to be parallel to the curved skin plane;
• wherein the medical template further comprises one or more alignment marks arranged to indicate one or more alignment axes and/or tolerances of placement;
• and
• wherein one or more positions and/or one or more extents of the one or more alignment marks is offset with respect to the one or more outer skin portions by a first distance that corresponds to an implantation depth of a corresponding portion of the one or more device portions.