Patent · US Active

Microfluidic device with serial valve

US7935319B2 · kind B2 · utility

6Cited by

6References

10Claims

0Family size

Assignee

Gyros AB · SE

Inventors

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

Key dates

Filing date	Oct 12, 2007
Grant date	May 3, 2011
Priority date	—
Expiry date	Apr 24, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/0346
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A microfluidic device comprising a hydrophilic microchannel structure in which there is a functional unit that comprises a microconduit which a) is intended for the transportation of liquid aliquots, and b) has an inlet end and an outlet end between which there is a capillary valve I, which preferably is based on the presence of a local non-wettable surface area. Microconduit I further comprises one or more additional capillary valves, typically one. At least one of the additional valves is upstream of capillary valve I, such as at the inlet end of the microconduit.

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