Patent ID: 9440022
Filing Date: 2016-09-13
CPC Classification: A61M,F16K,Y10T

Claim Text:
1. A method of controlling fluid flow in a flexible tube, the method comprising: providing a cassette for being connected to a pumping device, wherein the cassette comprises a housing having a constrictor, the flexible tube attached to the housing and positioned through the constrictor such that an inner diameter (ID) of the flexible tube is reduced, and a ball positioned inside the flexible tube; occluding fluid flow through the flexible tube by positioning the ball within the flexible tube at an upstream side of the constrictor; and passing fluid through the flexible tube by dislodging the ball within the flexible tube in a direction along a main extension direction of the flexible tube, wherein a dislodging mechanism is attached within the pumping device and is constructed and arranged to dislodge the ball when the cassette is positioned inside the pumping device.