Abstract: An extrusion device for manufacturing a hollow structure by coaxial extrusion of a plurality of media. The extrusion device has a plurality of mountings, each for a nozzle for extruding one of the media. The mountings extend in an axial direction along a central axis and are arranged coaxially, for coaxial arrangement of the nozzles in one another. At least two of the mountings follow one another in a radial direction and are mounted against one another in the radial direction by use of a bearing such that the at least two mountings can be displaced relative to one another in the axial direction in order to adjust the relative axial positions of the respective nozzles.