Patent ID: 7976794

Claim:
Positioning device for positioning pipettes for aspirating and/or dispensing of media in medical-technical applications, the said device comprising at least one pipetting apparatus with at least one pipette tip of the pipette, a plurality of drive units for positioning the pipette tip and for moving the pipette tip in at least one direction over a working area and in a direction transversely to the working area towards the working area or away from the working area, at least one sliding carriage that is moveable in the direction transversely to the working area, the pipette tip being secured in a detachable manner to the sliding carriage, at least one pump drive comprising at least one pump and at least one pump chamber for aspirating and/or dispensing of a medium, a control unit for controlling at least the drive units and the pump drive in conjunction with associated measuring devices, wherein the sliding carriage that is movable transversely to the working area is formed by a profiled rail with at least one hollow space extending in a longitudinal direction of the profiled rail, wherein the at least one pump drive together with the pump and the at least one pump chamber is accommodated by the at least one hollow space and is integrated in the hollow space, and wherein the control unit for controlling the pump drive in conjunction with associated measuring devices is integrated in the at least one sliding carriage that is movable transversely to the working area.