<p>The co-extrusion adaptor (1) has a housing (10) with a central channel (11) arranged in the housing. The housing has a receiving hole (100) penetrating through the central channel. A co-extrusion pin (13) is inserted in the receiving hole. The co-extrusion pin has a channel bore (130) proceeding through the central channel and forms a partial segment of a co-extrusion channel (12) between its outer surface (131) and the wall of the receiving hole. An independent claim is also included for an extrusion device with an extruder.</p>
