Hollow frustum reagent test device
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United States of America Patent
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-
Aug 8, 2000
Grant Date -
N/A
app pub date -
Jan 12, 1998
filing date -
Aug 9, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A hollow, frustum-shaped disposable device is used in an apparatus for measuring the concentration of an analyte in a sample of a biological fluid. The smaller end of the frustum has a porous membrane, to which a sample of the fluid may be applied. Preferably, a reagent in the membrane reacts with the analyte to cause a color change. The device is mounted on a meter, which measures the color change and computes from the change the analyte concentration in the sample. The apparatus permits remote dosing of the device, which minimizes the likelihood of cross-contamination between the user and the meter. Devices can be mounted on the meter and released from the meter without touching them, to further protect against contamination.
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