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US 10,473,572 B2Granted
Monitoring an immunoassay
AssigneeAlere Toxicology PLC
InventorsTimothy John Abbott, David Patrick Edward Brookes
Life of this patent
Estimating the term…
Abstract
A method of monitoring an immunoassay comprises determining the shape of the flow edge of fluid across an immunoassay region. This allows, for example, early detection of possible errors in the test. The above methods may also be used to provide methods to improve the run conditions of a test during its development. The method may be applied to a competitive assay.
Claims6
A method of monitoring the quality of an immunoassay test while the test is being carried out, the method comprising:
- disposing an immunoassay fluid sample on an upstream region of an immunoassay test strip;
- monitoring the shape of a flow edge of fluid by using an image processing device to acquire images at successive times as the fluid is passing across the active area of the immunoassay test strip and to determine shapes of flow edges of fluid by subtracting one image from a subsequent image;
- obtaining, by a controller of the image processing device, information about the presence of error in the immunoassay by comparing a determined shape of a flow edge of fluid with a reference shape;
- and
- applying a correction for performing the test from the obtained information about the quality of the immunoassay test.
2 more elements
Dependencies are inferred from the claim text.