Mixing and/or transferring device

A mixing and/or transfer device (10, 100) for mixing or transferring a first substance and a second substance that are present in a first and a second receptacle, comprising

• a first adapter (12, 112) with a circumferential wall (47), which is suitable for accepting the first receptacle, and along which extends, and which at least in sections surrounds a cannula body (64) as well as with a hollow-cylindrical section (26) that is connected to the cannula body,
• a second adapter (14, 114) with a circumferential wall (147), which is suitable to accept the second receptacle, and along which extends, and which a least in sections coaxially surrounds a cannula body (164), as well as a hollow-cylindrical section (126) that is connected to the cannula body,
• whereby when the first adapter and the second adapter have been assembled, the hollow-cylindrical sections preferably inter-engage in a liquid-tight manner and the first adapter and the second adapter are connected in a detachable and screwable manner, characterized in that
• each of the first and the second adapters (12, 14, 112, 114) comprises a hollow-cylindrical outer body (16, 18, 116, 118) with an exterior circumferential wall (32, 132) and, extending normal to the longitudinal axis of the outer body, a partition wall (24, 124), in that, when the adapters have been assembled, a section (128), which has an inner thread (134), of the outer circumferential wall of the one adapter surrounds a section (28), which has an external thread (34), of the outer circumferential wall of the other adapter, with inter-engaging threaded sections, and that the hollow-cylindrical outer body of the first and/or second adapter comprises an insert (46, 146) with a circumferential wall (47, 147) that accepts the first or the second receptacle.