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US 2021/0239587 A1Published application
Monitoring an immunoassay
AssigneeAbbott Toxicology Limited
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.
Claims21
1-10. (canceled)
A method for monitoring the quality of an immunoassay, said method comprising:
- introducing a test sample onto an immunoassay strip;
- detecting the start of fluid flow on the immunoassay strip;
- monitoring the flow of fluid along the immunoassay strip by monitoring a position of a flow edge as a function of time for the duration of fluid flow on an active area of the immunoassay strip;
- calculating the speed of movement of the position of the flow edge;
- calculating the time interval expected for the flow edge to reach the end of the active area of the immunoassay strip using the position of the flow edge, a speed of the movement of the flow edge, and/or the elapsed time since detecting the start of fluid flow;
- using the time interval expected for the flow edge to reach the end of the active area of the immunoassay strip to identify an optimal time to read a result on the immunoassay test strip.
3 more elements
Dependencies are inferred from the claim text.