| 摘要 |
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. |
