The present invention provides a detection element for lancets in lancing devices which will indicate that a lancet element is inserted completely again after the lancet has been changed. The invention includes a blood lancet apparatus which has a base body for the arrangement of a plurality of apparatus components, comprising a lancet reception device for coupling the blood lancet apparatus to a lancet element, at least one spring element for acting upon the lancet reception device with spring force and an actuating element for initiating a movement of the lancet reception device. The invention may further comprise a detection device for emitting at least for a time a signal with respect to a fixing position of the lancet element coupled at least in part to the lancet apparatus.