Patent ID: 7758552

Claim:
A tube clamp, for selectively closing and opening tubes, being configured as an essentially U-shaped shackle having rigid legs provided with inside projections that interact with each other as pinch-off edges, a flexible web by means of which the legs can be spread into a diverging position and a flexible spring latch connected to the free end of the first leg and curving towards the second leg, said latch having an inward-pointing cam behind which the free end of the second leg engages in the locking position when the legs are pressed together, the web and the spring latch being provided with openings for guiding the tube therethrough, wherein the tube clamp has means for closing the tube clamp in response to pressure exerted by an actuating member of an infusion pump, wherein the means for closing the tube clamp comprises an arched surface located on an face of the second leg facing away from the first leg, said arched surface protruding in a direction away from the first leg, wherein the arched surface extends along a longitudinal direction of the second leg on both sides of a line coinciding with a main protruding direction of the inside projection of the second leg.