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US 2014/0150890 A1Published application
Method For Washing a Microfluidic Cavity
AssigneeBoehringer Ingelheim Microparts GmbH
InventorsWolfgang Stoeters, Ying Yu, Silke Knoll
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AssigneeBoehringer Ingelheim Microparts GmbH
InventorsWolfgang Stoeters, Ying Yu, Silke Knoll
Estimating the term…
The invention relates to a method for washing at least one cavity (20′) in a microfluidic component, the cavity (20′) containing a first liquid (F1) and at least one second liquid (F2) being supplied to the cavity (20′) for washing. According to the invention an air bubble (L) is supplied to the cavity (20′) before the washing liquid (F2) is introduced. The air bubble (L), which acts as a virtual barrier layer between the first liquid (F1) and the washing liquid (F2) that follows it enables the washing efficiency to be increased considerably. Overall, this method leads to a saving in washing liquid (F2) and washing time. Moreover, a microfluidic component is proposed for carrying out the method.
Method for washing at least one cavity (20, 20′) in a microfluidic component (1, 1′), the cavity (20, 20′) containing a first liquid (F1) and the cavity (20, 20′) being supplied with at least one second liquid (F2) for washing, characterised in that the cavity (20, 20′) is supplied with a gas (L) before the washing liquid (F2) is introduced.
Microfluidic component (1, 1′) for carrying out a method for washing at least one cavity (20, 20′) in a microfluidic component (1, 1′), the cavity (20, 20′) containing a first liquid (F1) and the cavity (20, 20′) being supplied with at least one second liquid (F2) for washing, characterised in that the cavity (20, 20′) is supplied with a gas (L) before the washing liquid (F2) is introduced, said microfluidic component containing at least one first cavity (10), which is filled with a liquid (F2) for washing at least one second cavity (20, 20′), and means (40, 50a, 50b) for providing a fluidic connection between the at least one first (10) and the at least one second cavity (20, 20′), characterised in that, viewed in the direction of flow (S) of the liquid (F2), at least one further cavity (30) is arranged between the first (10) and the second cavity (20, 20′), which cavity (30) is filled with a gas (L).
Dependencies are inferred from the claim text.