Apparatus and method for taking a sample from a fluid-conducting system

An apparatus for sample taking from a fluid-conducting system, characterized in that the apparatus has

• at least one adapter which comprises
• at least one septum and at least one cannula having an inner space displaceable relative to the at least one septum, wherein the at least one cannula is displaceable such that the at least one cannula penetrates the at least one septum in a sample taking position and does not penetrate the at least one septum in a flushing position, wherein the adapter has
• at least one flushing region for a flushing medium which is arranged such that the at least one flushing region is in fluid communication with the inner space of the at least one cannula in the flushing position of the at least one cannula,
• locking means for the fluid-conducting system by which the fluid-conducting system is fixable in a defined position relative to the adapter,
• a displacement mechanism for displacing the at least one cannula and comprising an electric motor connected to a spindle connected to a rider connected to the at least one cannula, wherein the spindle is set into rotary motion by actuating the motor and wherein the rider is arranged movably to and fro on the spindle, such that at least one cannula is moved into the sample taking position or into the flushing position by actuating the motor, and
• a vacuum pump for taking the sample through the at least one cannula in the sample taking position.