Patent · US Active

Microfluidic device with finger valves

US7947235B2 · kind B2 · utility

1Cited by

2References

21Claims

0Family size

Assignee

Gyros AB · SE

Inventors

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

Key dates

Filing date	Apr 13, 2006
Grant date	May 24, 2011
Priority date	—
Expiry date	May 30, 2027

Classification

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

Abstract

A microfluidic device (1) comprising a hydrophilic microchannel structure (2) in which there is a functional unit that comprises a microconduit I (17) in which there is an inlet end (16), an outlet end (18), and a capillary stop function I (24) in the form of a local non-wettable surface area (44). The capillary stop function (24) defines a segment of microconduit I (17). Microconduit I (17) is within at least a part of this segment (46) divided into two or more microchannels (42). A part of the non-wettable surface area (44a,b) is associated with an inner wall of each of the microchannels (42).

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