Extrusion device, method for manufacturing a hollow structure, and use of an extrusion device

An extrusion device for manufacturing a hollow structure by coaxial extrusion of a plurality of media, the extrusion device comprising:

• nozzles;
• a bearing;
• and
• a plurality of brackets, each of said brackets provided for one of said nozzles for extruding one of the media, said brackets extending in an axial direction along a central axis and disposed coaxially, for coaxial arrangement of said nozzles one inside another, wherein at least two of said brackets follow one another in a radial direction and are mounted on one another in the radial direction by means of said bearing, such that said at least two brackets are movable relative to one another in the axial direction to adjust relative axial positions of respective ones of said nozzles.