Patent · US Active

Liquid plugs

US8372357B2 · kind B2 · utility

1Cited by

0References

14Claims

0Family size

Assignee

GYROS Patent AB · SE

Inventors

Per Andersson · Uppsala, SE
Gunnar Ekstrand · Uppsala, SE
Gerald Jesson · Säter, SE

Key dates

Filing date	Apr 13, 2006
Grant date	Feb 12, 2013
Priority date	—
Expiry date	Apr 10, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/0753
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A rotatable microfluidic device that comprises a hydrophilic microchannel structure in which there is a) an upstream microcavity I with a liquid outlet I, b) a microconduit I connected to liquid outlet I, and c) a capillary valve I associated with microconduit I. The inlet end of the microconduit is closer to the spin axis than the outlet end of the microconduit. The difference in radial distance between the inlet end and the outlet end of microconduit I is typically ≧5%, such as ≧10% or ≧100% or ≧500%, of the difference in radial distance between the uppermost part of the upstream microcavity and liquid outlet I.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.