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US 2026/0126039 A1Published application
Peristaltic pump and method for controlling such a pump
OwnerBertrand MALBECinventor
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OwnerBertrand MALBECinventor
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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.
A peristaltic pump comprising a casing (11), a support (12) comprising an inner and an outer face, said support (12) comprising an intermediate support part from which support arms (14, 15) extend on either side, said intermediate support part being flexible, the inner face of said intermediate support part having a semi-cylindrical symmetry around an axis that coincides with the said pump's main axis, said support arms (14, 15) being rigid, the free end of each of these side arms (14, 15) having at least one guide element (16), said casing having tracks (17) on which the guide elements are able to slide in order to constrain the movement of the free ends of the rigid side arms thereby altering the shape of the intermediate support part, the radius of its inner face being thus modified while leaving the axis of the intermediate inner face in a position where it coincides with the said pump's main axis, characterized in that the support (12) being made of a plastic material, said casing (11) comprising two parts of the casing body (11) between which said support is placed, said pump comprising at least one anti-creep device connecting said two parts of the casing body (11) by resting on the outer face of the support (12) to prevent the deformation of said intermediate support part.
The peristaltic pump in accordance with any one of the preceding claims, characterized in that it comprises at least one adjustment element for applying an adjustable constraint on the outer face of said intermediate support part, ensuring an adjustment of the deformation of the latter.
The peristaltic pump in accordance with any one of the preceding claims, characterized in that, having a rotor that rotates about the said pump's main axis, said peristaltic pump comprises an electric motor to drive said rotating rotor, said electric motor being chosen from among a stepper motor, a direct current motor or an alternating current motor, possibly with epicycloidal gear trains.
The peristaltic pump in accordance with any one of the preceding claims, characterized in that it comprises at least one hollow, flexible pump conduit, said pump conduit being obtained by molding.
The peristaltic pump in accordance with any one of the preceding claims, characterized in that it comprises at least one hollow, flexible pump conduit, said pump conduit having an inlet and an outlet, and, in that this pump conduit has different thickness ratios between its inlet and outlet, the thickness ratio of the duct at its outlet being greater than the thickness ratio of the duct at its inlet.
The method for managing a peristaltic pump in accordance with the preceding claim, characterized in that this adjustment element is placed at the top of said peristaltic pump to create two approximately equal portions of the intermediate support part on either side of said regulating element.
The management method in accordance with any one of the preceding claims, characterized in that the guide element(s) placed at the free end of the single rigid side arm, placed on the side of the outlet of the peristaltic pump, i.e., on the discharge side, is/are slid in such a way as to maintain a higher pressure.
Dependencies are inferred from the claim text.