SUCTION DEVICE

摘要

The object of the invention is a method for detaching a barrier means (12) adapted to the end part (2) of the suction device for closing an opening (5) in the end part (2) by the movement of a plunger (6) intended for changing the volume of a cylindrical space (4) provided in the end part (2) whereby the barrier means (12) is removed by bringing means (8, 9) for limiting the movement of the plunger (6) in the cylindrical space (4), e.g. means (10) intended for removing the disposable tip (3), in such a position that the plunger (6) can be brought into contact with the barrier means (12) for detaching the barrier means (12) from the end part (2) of the suction device.