US 10,328,427 B2 · Assay device

Abstract

The present invention provides an assay device for detecting an analyte in a fluid sample, comprising: a sample receiving member (1), which is fluidically connected to at least two components (2, 3) defining an assay flow path, at least one of which is a detection member (3) comprising an analyte detection zone (31); and a sample detection element (13) adapted to detect fluid at a particular point along the assay flow path. The present invention also provides the use of the assay device of the invention for indicating sample sufficiency when the assay device is exposed to a fluid sample and for indicating to a user after sampling that the device has failed due to insufficient sampling, and a method of alerting a user to the fact that a sufficient sample has been applied to an assay device of the invention.

Claims28

Dependent claims

An assay device for detecting an analyte in a fluid sample, comprising:

a sample receiving member, which is fluidically connected to at least two components defining an assay flow path, at least one of which is a detection member comprising an analyte detection zone;
and
a sample detection element that is in contact with the assay flow path, located upstream of the analyte detection zone and is adapted to detect fluid at a particular point along the assay flow path;
the sample detection element comprising a pair of electrodes;
and an indication system electrically coupled to the sample detection element and adapted to provide feedback to a user during a sampling event as a result of sample fluid arriving at the sample detection element to indicate that sufficient sample is applied to the device.

2 more elements

Dependencies are inferred from the claim text.

Assay device

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Assay device

Life of this patent

Abstract

Claims28