A device (20) for opening a line, the line having a sealing element that blocks the line passage. The device has at least one opening mechanism that applies a force that acts on the line from the outside, as a result of which the sealing element is compressed and the line is opened. The opening mechanism has an opening element (40) and a drive unit (24), the opening element or the drive unit being connected to a guide (30) and the drive unit or the opening element being connected to a rotational or sliding body (28). The sliding body is put into a rotational motion relative to the guide when the drive unit is operated. The relative motion between the rotational or sliding body and guide results in an extension or retraction movement of the opening element.
