Cassette with infusion set containing anti-freeflow ball valve for peristaltic infusion pump

A flow control system comprising:

• a pumping device comprising a dislodging mechanism;
• a cassette removably attached to the pumping device, the cassette comprising a housing comprising a constrictor so constructed and arranged to align with the dislodging mechanism when the cassette is positioned within the pumping device;
• a flexible tube attached to the housing and positioned through the constrictor;
• and
• a ball located inside the flexible tube.

A flow control system comprising:

• a pumping device;
• a cassette removably attached to the pumping device, the cassette comprising a housing comprising a constrictor and a dislodging mechanism attached to the constrictor;
• a flexible tube attached to the housing and positioned through the constrictor;
• and
• a ball located inside the flexible tube.

A method of controlling fluid flow in a tube, the method comprising:

• providing a cassette comprising 1) a housing having a constrictor, 2) a tube attached to the housing and positioned through the constrictor, and 3) a ball positioned inside the tube;
• occluding fluid flow through the tube by positioning the ball within the tube at a location proximate the constrictor;
• and
• passing fluid through the tube by dislodging the ball within the tube.