Device and method for positioning a liquid

B - Operations – Transporting – 01 – L

Patent

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Details

B01L 3/00 (2006.01) G01N 35/00 (2006.01)

Patent

CA 2362733

The invention concerns several positioning devices (21) for a liquid sample (2) displaced by pressure variation between an intake (23) and an outlet (24), a container (25) connecting the intake (23) to the outlet (24). In one particularly interesting embodiment, the sample (2) is automatically stopped in its displacement as soon as said sample (2) is present in the container (25), and no longer present at an intersection point between a branch connection (26) and said intake (23), the branch connection (26) directly connecting the intake (23) with said outlet (24). The invention is particularly applicable to microfluidic devices used in biology.

La présente invention concerne plusieurs dispositifs de positionnement (21) d'un échantillon liquide (2), déplacé par une variation de pression entre une entrée (23) et une sortie (24), un récipient (25) reliant l'entrée (23) et la sortie (24). Selon un mode de réalisation particulièrement intéressant, l'échantillon (2) est stoppé automatiquement dans son déplacement dès que ledit échantillon (2) est présent dans le récipient (25), et n'est plus présent au niveau du point d'intersection entre une dérivation (26) et la dite entrée (23), la dérivation (26) reliant directement l'entrée (23) avec ladite sortie (24). L'invention trouve une application préférentielle dans le domaine de la micro-fluidique appliquée à la biologie.

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