The invention relates to an apparatus (1) for adjusting the length of an infusion tube (2) comprising a first wall (3) and a second wall (4) and at least one connecting element (5) connecting the first wall (3) to the second wall (4), said connecting element (5) being situated at a distance to the peripheral circumference of the walls (6), and wherein the distance between the walls in radial distance to said connecting element provides an inlet opening extending around the connecting element having a width (M) measured between the walls (3, 4); and wherein the apparatus comprises at least one attachment device (8) for securing the infusion tube (2). Hereby a winding of an infusion tube is enabled for adjusting the connection length between pump and the site of infusion anywhere on the infusion tube and on any kind of infusion tube, said apparatus being independent of the infusion unit. Thus, the apparatus enables reuse due to its independence of the pump. The system also enables the user to position the winding unit on any suitable place in his/her body with regard to physiology and to clothing.