Pinch clamp device

A pinch clamp device for a flexible tube, comprising:

• a first part and a second part that are movable with respect to each other,
• wherein the first part comprises a first conduit for housing the flexible tube and the second part comprises a second conduit for housing the flexible tube, the second part nested within the first part and the second part moveable along an extension direction of the first conduit and the first conduit having an inner wall with a smooth cylindrical surface except for a recess shaped in the smooth surface,
• wherein the first part and the second part are arranged in an interacting manner such that the pinch clamp device can be present in a first position and in an alternative second position, wherein a flow of a fluid within the flexible tube arranged inside the first conduit and the second conduit is enabled in the first position, and a flow of a fluid within the flexible tube arranged inside the first conduit and the second conduit is prevented in the second position,
• wherein the second part comprises a flexible extension extending along the second conduit, wherein the flexible extension can be present in a relaxed position and in an alternative compressed position, wherein the pinch clamp device is in the first position if the flexible extension is in its relaxed position, and wherein the pinch clamp device is in the second position if the flexible extension is in its compressed position;
• wherein the flexible extension has a free end and a protrusion on the free end, wherein the protrusion extends radially away from the second conduit, wherein the protrusion is received in the recess shaped in the smooth surface of the inner wall of the first conduit of the first part if the flexible extension is in the relaxed position and abuts the smooth surface of the inner wall of the first conduit if the flexible extension is in the alternative compressed position;
• and
• wherein the first part and the second part are designed axisymmetrically.