Microfluidic network device

Microfluidic network device including a base portion comprising a plurality of microfluidic inlet channels and at least one common outlet channel, and a plurality of valves interconnecting an outlet end of each of said plurality of inlet channels to said at least one common outlet channel, each valve comprising a deflectable member displaceable between a valve closed position in which fluid communication between the inlet channel and outlet channel is closed, and a valve open position in which fluid communication between the inlet channel and common outlet channel is open, said at least one common outlet channel comprises valve sections and intermediate sections interconnecting the valve sections, wherein each valve section of the at least one common outlet channel is configured to cooperate with a corresponding valve, the valve sections being positioned adjacent respective said outlet ends of the inlet channels.