The invention relates to a holder means for connecting, more particularly for the defined fastening, of at least one guide-support structure to a living entity. The holder means comprises at least a holder unit and a fastening means for the locally stable arrangement of the holder unit on the living entity, wherein the holder unit is elongated in design and can be arranged in the direction of extension of a body surface line of the living entity to at least in sections overlap the body surface line, wherein the body surface line is such that between two different body load conditions it essentially experiences no change in length.
