Microfluidic system and process for mixing liquid fluids

摘要

The present invention pertains to a microfluidic system (1) for mixing liquid fluids, comprising: a main line (2); one or more first feed lines (6) for feeding one or more first liquid fluids to said main line, said first feed lines being connected to said main line and equipped with controllable first feed line valves (8) for blocking or releasing liquid fluid flow to said main line; at least one second feed line (9) for feeding a second liquid fluid to said main line, said second feed line being connected to said main line and equipped with a controllable second feed line valve (10) for blocking or releasing liquid fluid flow to said main line; two or more dosage lines (11,12) for dosing liquid fluids, said dosage lines being connected to said main line and equipped with controllable dosage line valves (13,14) for blocking or releasing liquid fluid flow between said dosage lines and said main line, said dosage lines comprising at least one first dosage line sized to receive at least a predefined first fluid volume and one second dosage line sized to receive at least a predefined second fluid volume; one or more fluid chambers (43) for receiving liquid fluids being connected to said main line via controllable first and second fluid chamber valves (44,45) for blocking or releasing liquid fluid flow between said fluid chambers and said main line; at least one pressure actuator (15,15') for generating a positive or negative pressure in said dosage lines; and a controller (52) set up to control activity of said pressure actuator and said valves in a manner to mix said one or more first liquid fluids with said second liquid fluid. It further relates to a process for mixing liquid fluids in which the fluids are fed in a main channel and drawn in fluid dosage lines for discharging into a fluid chamber.