The invention concerns a pump module, a pump base module and a pump systemwhichcomprises a pump module and a pump base module.The invention-based pump module (1) comprises a line-shaped pump channel (5)whichis curved at least in sections, a pump channel inlet (6) and a pump channeloutlet (7),wherein the pump channel inlet (6) and the pump channel outlet (7) areconnected withthe pump channel (5) for supplying a fluid into the pump channel (5) anddischarging afluid from the pump channel (5), so that through a periodically rotatingdeformation ofthe membrane (4) a fluid can be pumped through the pump channel (5) from thepumpchannel inlet (6) to the pump channel outlet (7), wherein in the sectionbetween thepump channel inlet (6) and the pump channel outlet (7) the pump channel (5) isdesignedin a way that differs from a genuine circular design.
