Apparatus and Method for Measuring Biochemical Parameters
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United States of America Patent
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Issued Date -
Mar 6, 2014
app pub date -
Aug 30, 2013
filing date -
Aug 21, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In a first embodiment, electrodes are coupled to a surface at first, second, and third locations, the first location being further from the third location than from the second location. Impedance is measured at distinct frequencies between pairs of the electrodes. As a result, impedance is measured at differing regions below the surface, one region being deeper below the surface than the other region. In a second embodiment, a microfluidic device carries out an analysis. The analysis may be within a flexible patch adhered to a surface, or may be in a solid device implanted in a body of liquid surrounded by tissue. The analysis may involve pumping a fluid or may involve drawing an analyte electrophoretically through a microfluidic channel.
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