Patent ID: 6857617

Claim:
A roller pincher for setting a regulation cross-section of a flexible tubing which is connectable to a medical fluid container, the roller pincher comprising: an elongate pinch housing being U-shaped in cross-section with two sidewalls and with a web wall connecting said side walls; a pinch roller which acts on the flexible tubing positioned in said housing, said pinch roller being arranged longitudinally displaceable in said sidewalls, said pinch roller having an annular notch on one circumferential corner region for forming the regulation cross-section of the flexible tubing in cooperation with said pinch housing, wherein said pinch housing in a transition region from said web wall to one of said sidewalls which is distant to said annular notch of the pinch roller, said transition region comprises an inner elongate side guide surface for the flexible tubing held between the web wall and the pinch roller, said side guide surface projecting into said pinch housing and running inclined to a longitudinal middle plane of said housing.