Device for positioning and outward embedded in separation medium Fluidkompartimenten

2003 
The invention is a device that can be selectively positioned with the aid of a plurality of embedded in Fluidkompartimenten separation medium, which are placed in a reservoir (6) selected compartments and removed subsequently. For this purpose the apparatus includes in one component, preferably a microchip (1), having at least two channels (2) with a common channel portion (3), the inner surface of the separation medium wetting and non-wetting for the compartment-fluid properties. Each channel has at least one valve (4), whose circuit a flow of fluid through any of the may be sent to the common channel section subsequent channels. By means of a, with respect to its pressure pulse controllable, bi-directional actuator (5) takes place a defined control of the fluid flow in at least one channel, through which the compartment to be positioned is transported into the common channel section. takes place the ejection of a positioned in the common passage portion the compartment in a sustained release device (10) by a targeted pressure pulse buildup in the common channel section by means of a further integrated actuator (8). The apparatus includes at least one detection unit for the phase boundary between the compartment and the separation medium (7a) and at least one detection unit for Kompartimentinhalt (7b) and also an optional ...
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