The invention concerns a disposable inserter (10), which comprises: a housing (110) having arranged in a displaceable configuration an inserter assembly (130) comprising a cannula assembly (1310) with a cannula (1311), a manually operable member (120) for displacing the inserter assembly (130) from a retracted position to an advanced position in order to manually insert the cannula (1311) into the skin of a patient, a locking element (111) for blocking or enabling displacement of the inserter assembly (130), and a coupling arrangement (112) for coupling the disposable inserter (10) to a reusable inserter (30) for automatically displacing the inserter assembly (130) from the retracted position to the advanced position in order to automatically insert the cannula (1311) into the skin of the patient.
