A rotor includes a rotary body configured to rotate about a rotational shaft; a plurality of bottom parts attached to the rotary body; a plurality of arm parts that have respective rollers configured to revolve around the rotational shaft and depress a tube, and are attached to the respective bottom parts; and an adjuster that adjusts the mutual positional relation between the bottom parts in the radial direction of the rotation of the rotary body.

Disclosed is a fluid isolating pump. The fluid isolating pump includes a rotating cage, one or more roller assemblies mounted on the rotating cage, a cam plate, and a non-rotating central shaft. The cage includes a front plate and a back plate connected by multiple connecting rods. Each roller assembly is rotatably attached to a corresponding connecting rod of the cage. Each roller assembly includes one or more arms rotatably attached to the connecting rod, a connecting bar coupled to the one or more arms, one or more levers rotatably attached to the connecting rod, one or more suspensions, and a roller. Each suspension is coupled to at least one arm and to at least one lever. The roller is coupled to the one or more levers. The cam plate includes multiple openings having a first end and a second end. The connecting rod of each roller assembly is configured to slide from the first end of the opening to the second end of a corresponding opening.

A pump cartridge for mounting on a drive rotor includes a roller assembly having first and second hubs maintained in a spaced apart relationship and defining an axis, and a plurality of planetary rollers arranged in a circumferentially spaced orientation about the axis, the rollers mounted to the hubs displacement radially outward. One or more compressible tubing lines are interposed between the rollers and an interior wall of the pump cartridge housing. The housing and the first and second hubs collectively define a passageway through which a spreader on the drive rotor extends and may be rotated relative to the roller assembly to displace the rollers radially outward to thereby compress the tubing lines against the interior wall. A coupling feature on the first hub engages a roller driving feature of the rotor, so that rotation of the rotor causes rotation of the roller assembly about the axis.

A tube pump that sends a fluid includes a tube, a roller, and a roller holder. In the roller holder, a guide groove is formed that receives a shaft of the roller and defines a range in which the roller is movable with respect to the roller holder. The roller holder has an inner side surface and an outer side surface as surfaces defining the guide groove in the roller holder. The inner side surface has a protrusion protruding toward the outer side surface.

A pump cartridge for mounting on a drive rotor includes a roller assembly having first and second hubs maintained in a spaced apart relationship and defining an axis, and a plurality of planetary rollers arranged in a circumferentially spaced orientation about the axis, the rollers mounted to the hubs displacement radially outward. One or more compressible tubing lines are interposed between the rollers and an interior wall of the pump cartridge housing. The housing and the first and second hubs collectively define a passageway through which a spreader on the drive rotor extends and may be rotated relative to the roller assembly to displace the rollers radially outward to thereby compress the tubing lines against the interior wall. A coupling feature on the first hub engages a roller driving feature of the rotor, so that rotation of the rotor causes rotation of the roller assembly about the axis.

A device for supplying and/or aspirating a fluid substance to or from a human or animal body is provided, which device has a drive unit with a drive, an attachment part, and coupling element. The attachment part has a peristaltic pump unit with a pump head having roller elements which are movable freely and independently of one another and serve for rolling on a hose. The coupling element serves to transmit a movement from the drive to the pump head. The pump head has a decoupled state in which the roller elements apply no or a comparatively low mechanical pressure to the hose, and a coupled state in which the roller elements are pressed by the coupling element against the hose with a comparatively high mechanical pressure.

A mini peristaltic pump is provided that includes a base plate, first and second gears disposed on a first side of the base plate, first and second roller wheels disposed on a second side of the base plate and coupled to the first and second gears, respectively, and one or more rollers coupled to each of the first and second roller wheels. A motor is coupled to the first gear, the motor configured to rotate the first gear and the first roller wheel to move the one or more rollers coupled to the first roller wheel in a first orbital path to peristaltically engage and compress a hand pump disposed between the first and second roller wheels. A profile feature on the base may be provided instead of the second gear and roller wheel. Systems and methods are also provided.

An improved linear peristaltic pump that is able to be manufactured using fewer parts while also improving the performance and the reliability of the pump. The linear peristaltic pump utilizes a leaf spring in direct contact with a tube and is therefore able to provide smooth transitions in the forces exerted on the tube.

A pump comprising a housing; a motor mounted in the housing and configured to drive a rotor mounted on a shaft connected to the motor, and a first connector and a second connector each secured to the housing. The first and second connectors are in fluid communication by a tube arranged in the housing. The first connector is configured to connect to a first fluid line and the second connector is configured to connect to a second fluid line. In use, the rotor is configured to urge fluid within the tube from the first connector to the second connector when driven by the motor. The first and second connectors are releasably secured to the housing.

The present invention is directed to a peristaltic pump (1), comprising a rotary body (2) with a plurality of squeeze sections (3) arrange circularly distributed and moveable about a rotation axis (A), a tube carrier (4) for carrying a flexible tube (5) along an arcuate engagement section (6) arcuately surrounding the rotary body (2), and an actuator (7) for selectively moving the tube carrier (4) relative to the rotary body (2) between a pump position in which a flexible tube (5) carried by the tube carrier (4) be positioned in engagement between the engagement section (6) and at least one of the squeeze sections (3) to allow for a pumping action when moving the rotary body (2) about the rotation axis (A), and a release position in which the flexible tube (5) carried by the tube carrier (4) be disengage from the plurality of squeeze sections (3) to allow for free flow through the flexible tube (5). The present invention is further directed to a pump system comprising the peristaltic pump (1), a flexible tube (5) be functionally carried by the tube carrier (4), a product supply be fluidly connected to an upstream end of the flexible tube (5), and a product discharge section be fluidly connected to a downstream end of the flexible tube (5). Moreover, the present invention is directed to a method for pumping a fluid by use of the pump system (100).