Patent ID: 6648017
Filing Date: 2003-11-18
Classification: A61C,Y10T

Abstract:
A valve arrangement for a medical apparatus for stopping fluid passage through a flexible tubing, comprising:a valve housing through which a portion of the flexible tubing is passed, a camshaft which is rotatably supported in a longitudinal bore of the valve housing and which has at least one control cam for moving and guiding at least one press member in a first radial bore which extends in a radial direction with respect to a longitudinal bore, the press member being moved between a retracted inactive relative position and a protruded active relative position in which the associated portion of the flexible tubing is squeezed by the press member for stopping fluid passage through the flexible tubing; said portion of the flexible tubing passing through the valve housing extends in a direction normal with respect to the longitudinal bore rotatably supporting the camshaft and also normal with respect to the radial bore which is arranged for guiding said at least one press member, said at least one control cam is formed by a first sink of the otherwise closed circular surface of the camshaft which when being radially aligned with said at least one press member determines a retracted inactive relative position of the press member the corresponding protruded active relative position of which is obtained with the closed circular surface of the camshaft which is contacted by the press member while the camshaft is rotated.