use fig4 e shows a front view of the outlet opening of the lancet of the analytical device 1 fig4 f shows an enlarged view of the detail labelled x in the front view of fig4 e this view shows especially that four capillary channels 7 which enable sample transport to the test element 9 are present in the elastic material 6 of the lancet body 4 a thickening 8 is provided in the rear of the lancet needle 3 in embodiments of fig1 to 4 which is of major importance for the lancing movement this thickening 8 is designed such that it can be coupled to a lancing drive in this case the drive carries out the forwards and backwards movement of the needle 3 alternatively a drive coupling is also conceivable in which a plunger carries out the forward movement it is then moved back by a spring which is pressed together during the forward movement and then subsequently relaxes the thickening 8 on the needle 3 is important for this as one of the contact points for the spring this spring can either be a component of the disposable or a component of the instrument or of a cassette or a magazine the thickening 8 can for example be an attachable plastic or metal part the needle 3 can also be mechanically deformed squeezing bending to produce a thickening 8 another embodiment of the invention is shown in several detailed drawings 5 a 5 d of fig5 in this embodiment the thickening 11 of the lancet needle 3 is not at the rear end of the lancet needle 3 but rather in the region of the middle of the needle in this case the thickening is located inside the lancet body 4 in this case an appropriate.