Separation structure

Details Separation structure Separation structure

2007-10-12

2010-11-16

Warden, Jill (Department: 1797)

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

C422S105000, C422S068100, C137S038000

Reexamination Certificate

active

07833478

ABSTRACT:
A centrifugal-based microfluidic device (1) that comprises a hydrophilic microchannel structure (2) in which there is aA) a separation microcavity I (4) that comprises i) a liquid inlet I (5), and ii) a liquid outlet I (6) that is at a level below the level of liquid inlet I (5) and above the level of the bottom (8) of the microcavity (4) thereby defining a lower part (4b) and an upper part (4a) of the microcavity (4), andB) a microconduit I (17) that has an inlet end I (16) directly connected to liquid outlet I (6), and an outlet end I (18) that is at a lower level than inlet end I (6).A capillary valve I (24) is associated with microconduit I (17). The flow direction through liquid outlet I (6) is directed upwards and/or liquid outlet I (6) is placed in a downwardly turned part of an inner wall of the separation microcavity (4), and/or the part of microconduit I (17) next to liquid outlet I (6) is directed upwards.

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International Search Report issued Jul. 18, 2006 during the prosecution of International Application No. PCT/SE2006/000454.
Supplementary European Search Report, issued Jul. 8, 2010 (published Jul. 8, 2010) during the prosecution of European Application No. 06733310.4.

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