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    • 8. 发明申请
    • SYSTEM FOR DETERMINING VALIDITY OF A LATERAL FLOW TEST RESULT
    • WO2020251460A1
    • 2020-12-17
    • PCT/SE2020/050586
    • 2020-06-09
    • DELAVAL HOLDING AB
    • DALLERUP RASMUSSEN, ClausTRIER HALD, Jonas
    • G01N33/558G01N33/74G01N21/84
    • A system (10) for determining validity of a result of a lateral flow test, comprising a lateral flow stick (180a, 180b, 180c). The lateral flow stick (180a, 180b, 180c) comprises: a sample pad (310); a conjugate pad (315) comprising antibody treated gold particles; a porous membrane (320) for receiving a capillary flow of the milk sample. The porous membrane (320) comprises: a test line (360) treated with a progesterone reference which binds antibody treated gold particles of the milk sample and thereby brings the test line (360) to change colour tint when exposed for milk comprising a progesterone level lower than a threshold limit; and a control line (370) treated with an antibody reference which binds antibody, and thereby brings the control line (370) to change colour tint when exposed for milk comprising antibody treated gold particles. The system also comprises a sensor (210) and a control unit (150), configured to obtain a reference colour tint (380) of the control line (370); determine a current colour tint of the control line (370), based on the image captured by the sensor (210) during the ongoing lateral flow test; compare the reference colour tint (380) of the control line (370) with the current colour tint of the control line (370); and indicate validity of the lateral flow test on the lateral flow stick (180a, 180b, 180c), based on the made comparison.