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US 2008/0076190 A1Published application
Fluidic Indicator Device
OwnerStephen Carlisle, David Tolleyinventors
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OwnerStephen Carlisle, David Tolleyinventors
Estimating the term…
Disclosed is a fluidic assay device for assaying at least one property of a liquid sample, the device comprising: (i) a liquid sample application region; (ii) at least one test flow path in liquid flow communication with the sample application region; (iii) a reference flow path in liquid flow communication with the sample application region; and (iv) a junction region, at which the test flow path and the reference flow path contact one another, the junction region typically comprising an outlet, conduit, chamber or other portion which permits the onward flow of liquid; wherein a liquid flowing along the reference flow path, upon reaching the junction region, has the effect of preventing the flow of liquid along the test flow path. The invention relates to a fluidic device for the passage of a liquid. It also relates to an assay device suitable for measurement of the amount and/or presence of an analyte in, or property of, a fluid sample.
A fluidic assay device for assaying at least one property of a liquid sample, the device comprising:
An assay device according to any one of the preceding claims, wherein the test and/or reference flow paths comprise a label or indicator.
An assay device according to any one of the preceding claims, wherein the assay device comprises a reagent which reacts with, or a binding partner which binds to, an analyte of interest present in the sample.
An assay device according to any one of the preceding claims, further comprising an indicator region which indicates the result of the assay.
An assay device according to any one of the preceding claims, wherein one or more vents are provided downstream of the junction region, whereby displacement of air or other fluid through the vents is necessary to allow liquid to advance along the test and reference flow paths.
An assay device according to any one of the preceding claims, which provides a binary outcome for the assay result.
An assay device according to any one of the preceding claims, which is a pregnancy-testing device and the analyte of interest comprises hCG.
An assay device substantially as hereinbefore described and as illustrated in the accompanying drawings.
A method of detecting the presence and/or amount of an analyte of interest in a liquid sample, the method comprising the steps of:
Dependencies are inferred from the claim text.