the valve being formed by a flexible tube element which is clamped for restricting the flow

Full Title

Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance (heart stimulation A61H31/00; heart stimulators for electrotherapy A61N1/362) > Constructional details other than related to driving > of extracorporeal blood pumps > Valves > the valve being formed by a flexible tube element which is clamped for restricting the flow