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公开(公告)号:EP1831345A2
公开(公告)日:2007-09-12
申请号:EP05853864.6
申请日:2005-12-13
发明人: BELLET, Neal, F. , SHINDELMAN, Jeffrey , WORTHY, Thomas, E. , HALEY, Kimberly , LEE, Richard, K-T , KYUNG, Jane, Eunhee , QIAN, Suyue
IPC分类号: C12M1/34
CPC分类号: G01N21/03 , B01L3/5023 , B01L9/52 , B01L2200/0668 , B01L2300/0825 , B01L2300/0887 , B01L2400/0406 , B01L2400/0633 , G01N33/54306 , G01N33/54366 , G01N33/54386 , G01N2035/00108 , G01N2035/00128 , G01N2035/0436 , Y10S435/805 , Y10S435/81 , Y10S435/97 , Y10S436/81
摘要: An immunoassay cassette, apparatus, and method for detecting an analyte in a liquid body-fluid sample are disclosed. The cassette has a body and a support mounted on the body, for movement relative to the body to first and second transfer positions. Sample supplied to a sample well in the cassette body is transferred to a reagent reservoir on the cassette body, by moving the support to its first transfer position. Here the sample reacts with a first reagent composition in the reservoir effective to form a modified sample. The modified sample is then transferred to a reagent strip on the support by moving the support to its second transfer position. The reagent strip has a transfer zone at which sample material is transferred to the strip, a second reagent composition effective to react with the modified sample to form a detectable analyte-dependent product, and a detection zone located downstream at which the detectable product can be observed. By controlling movement of the support to its first and second positions, the cassette can effectively handle a variety of samples having different flow rates.