PERISTALTIC PUMPING SYSTEM

摘要

Peristaltic pumping system comprising a flexible tube, a substantially cylindrical rotating roller unit (8,11) containing a series of rollers (11) which are freely rotating around their axes and freely moving along a radial segment, holding means (8) for commonly holding the rollers (11), a central spreader element (5) for pushing the rollers (11) against the flexible tube and a driving unit (1,2) comprising a driving coupling element (1), characterized by the fact that said holding means (8) is made of at least one planar element (8) having retaining and guiding means for rollers (11), said planar element (8) being furthermore adapted to be directly coupled to said coupling element (1,2) in such a way that rollers (11) are driven through said planar element (8).