Systems and methods for collecting tear film and measuring tear film osmolarity
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United States of America Patent
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Jan 14, 2014
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app pub date -
Nov 17, 2011
filing date -
Mar 25, 2003
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Abstract
A sample receiving chip comprising a substrate that receives an aliquot volume of a sample fluid and a sample region of the substrate, sized such that the volume of the sample fluid is sufficient to operatively cover a portion of the sample region. The energy imparted into the sample fluid is transduced by the sample region to produce an output signal that indicates energy properties of the sample fluid. The sample receiving chip also includes a channel formed in the substrate, the channel configured to collect the aliquot volume of a sample fluid and transfer the aliquot volume of sample fluid to the sample region.
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