Lateral flow immunoassay test reader and method of use
US10823746B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2020 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | May 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2333/165
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A reader for a lateral flow test device includes a tray or drawer, extendable from the reader, which receives the test device. The tray includes a calibration test pattern affixed or printed thereon placed proximate to the test device and in alignment with the axis of the test device. As the tray is closed and the test device is inserted to the reader, the calibration test pattern is first read by an optics unit including a photodiode. The resulting photodiode output provides a calibration curve S that the reader then uses to correct for any non-linear response of the reader's optical or electronic systems, thus insuring that every reader will yield the same readout for a given test cartridge, despite reader-to-reader variations or reader degradation with time. One use of the reader is for detection of SARS-CoV-2 infection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.