Patent ID: 7439075
Filing Date: 2008-10-21
Classification: B01J,B01L,G01N,Y10T

Abstract:
1. A fluidic microsystem comprising: a channel arrangement, which comprises liquid lines for receipt and/or continuous flowing of a suspension fluid containing suspended microparticles, a manipulation device for a manipulation of the suspended microparticles and a measuring device for a characterization of the suspended microparticles, said manipulation device including at least one of dielectric field cages and field barriers for a dielectrophoretic treatment of the suspended microparticles; a discharge channel adapted to guide the suspension fluid, the discharge channel being connected with a downstream end of the channel arrangement; and at least one flow output device for producing at least one output flow of a liquid to be added to the fluid flow, said at least one flow output device having at least one output channel for guiding said at least one output flow, the at least one output channel having a larger cross-sectional dimension than the discharge channel, the at least one output channel including a section having a longitudinally curved shape that opens out as a side influx at a mouth coupled to an end of the discharge channel at an acute angle, the at least one flow output device including a pump device with a controllable pump rate, the pump device being connected with the at least one output channel to adjust the at least one output flow independently of the suspension fluid flow in the liquid lines of the channel arrangement, the at least one output channel and the discharge channel converging into a conduction element which ends at an outlet of the fluidic microsystem, the conduction element being arranged for guiding a discharge flow composed of the suspension fluid and at least one output flow to the outlet, the at least one output channel opening at the end of the discharge channel and adapted for guiding the output flow with the respective flow directions of the output flow in the corresponding output channel and the suspension fluid in the discharge channel running at the mouth of the at least one output channel into the end of the discharge channel at an angle of less than 90° to one another.