Optically readable strip for analyte detection having on-strip orientation index
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United States of America Patent
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Jan 1, 2002
Grant Date -
N/A
app pub date -
Sep 8, 1994
filing date -
Sep 8, 1994
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A test strip is provided for determining the presence or quantity of an analyte in a liquid by inserting the strip into an optical reading apparatus. The test strip is provided with an orientation index zone having a reflectance that contrasts with the reflectance of areas contiguous thereto and such orientation index zone is employed to affirm that the test strip has not been inserted upside down with respect to the apparatus.
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