Abstract: This invention relates to a peristaltic pump comprising a casing (11), a support (12) comprising an outer face, said support (12) having a flexible intermediate support part from which rigid support arms (14, 15) extend on either side of it, the free end of each of these side arms having at least one guide element (16), said casing comprising tracks (17) on which these guide elements are able to slide in order to constrain the movement of the free ends of the rigid side arms in such a way as to deform the intermediate support part. According to the invention, said support (12) is made of plastic, said outer face comprising one or more housings (18) extending in the direction of pumping, at least one of these housings being equipped with an anti-creep device to prevent the deformation of said intermediate support part.

Abstract: A peristaltic pump including a support surface including an interior face, a drive device for driving the rotation of rollers so as to compress the tube at least at one point on the interior face of the support surface, this drive device being a direct-drive device. The peristaltic pump includes: a central roller, positioned between the rollers and in contact therewith, the central roller forming a central point of contact for relaying the load applied to the at least one roller compressing the deformable tube against the interior face; a geared drive device for driving the rotation of the rollers so as to compress the tube at least at one point on the interior face of the support surface; and/or the central roller driving the frictionally rotation of the rollers; where the pump is offers, using the same set of rollers, at least three different reduction ratios.

Abstract: A peristaltic pump includes a removable carrier against which a flexible tube is pressed by rollers. The carrier includes an intermediate deformable section having an internal cylindrical surface whose axis coincides with the main axis of rotation of the rollers and lateral rigid arms arranged on both sides of the intermediate section. The free ends of the lateral arms include guides. The pump case is provided with paths on which the guides are slidable. The path directions are predefined in order to constrain the displacement of the free ends of the lateral arms and to deform the intermediate section in such a way that the radius of the internal face is modified keeping the axis thereof coinciding with the main axis, thereby making it possible to use a tube having variable characteristics.

Abstract: The inventive peristaltic pump (100) comprises a removable carrier (400) against which a flexible tube is pressed by rollers. Said carrier (400) comprises an intermediate deformable section (401) having an internal cylindrical surface (405) whose axis (A) coincides with the main axis of rotation of the rollers and lateral rigid arms (403, 404) arranged on both sides of said intermediate section. The free ends (E, F) of the lateral arms comprise guiding means (412, 414), respectively. The pump case is provided with paths on which said guiding means are slidable. The path directions are predefined in order to constrain the displacement of the free ends of the lateral arms and to deform the intermediate section in such a way that the radius of the internal face is modified keeping the axis thereof coinciding with the main axis, thereby making it possible to use a tube having variable characteristics for said peristaltic pump.