The present invention provides a kind of system, the system can in succession by a pair of of container (101,102) two kinds of fluid administrations in are to patient. The system can have delivery apparatus (11), and two valve modules are integrated into single device by the delivery apparatus, and preferably, each of described valve module tool there are two check valve and pump communications ports (124,125). For example, the valve module can share one or more walls and/or one or more rooms each other. Preferably, only outlet in the shell is attached to input pipe, efferent duct and pump connector. Preferably, the system uses single pump (12). By reversing the pumping direction of the pump, liquid can be extracted out from a container or another container in succession. Slit valve (13d) can be used to prevent the free-flowing of fluid in the valve module.
