A puncturing system for obtaining a sample of body fluid comprises a magazine that comprises a lancet carrier that carries several lancets, a puncturing device comprising a compartment for the magazine, an incremental advancing mechanism for moving the lancets successively to a puncturing position, and a puncturing drive for accelerating one of the lancets that is positioned in the puncturing position in a puncturing motion. The magazine comprises a coupling facility with a receptacle for the lancet carrier. The receptacle is mobile with respect to a magazine housing The lancets that are carried by the lancet carrier can be moved relative to the receptacle by actuating the incremental advancing mechanism The receptacle is adapted to couple the puncturing drive to one of the lancets positioned in the puncturing position for transmitting a driving force generated by the puncturing drive during a puncture to the lancet positioned in the puncturing position.