发明名称 |
Iconic Colorimetric Test Device with Reduced Susceptibility To False Positive and False Negative Readings |
摘要 |
Laminated test devices in which positive results are detected by the appearance of a symbol on the surface of the device due to a color change in an indicator in the device are improved by placing the indicator lamina on one side of a light-transmissive substrate sheet and a pigment lamina on the other side, the indicator lamina forming the icon and the pigment lamina forming the background, the pigment being the color of the indicator prior to the color change. This arrangement reduces false positive readings by obscuring the outlines of the symbol prior to the color change. False negative readings are reduced by further changes in the arrangement of the laminae.
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申请公布号 |
US2008032411(A1) |
申请公布日期 |
2008.02.07 |
申请号 |
US20070774487 |
申请日期 |
2007.07.06 |
申请人 |
QUIDEL CORPORATION |
发明人 |
LAWRENCE PAUL J.;CHAUDHURI AULENA |
分类号 |
G01N33/52;G01N33/00;G01N33/48 |
主分类号 |
G01N33/52 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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