SYSTEMS AND METHODS FOR COLLECTING TEAR FILM AND MEASURING TEAR FILM OSMOLARITY
3 Assignments
0 Petitions
Accused Products
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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Citations
56 Claims
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1-44. -44. (canceled)
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45. A device for determining the presence of an analyte in a fluid sample comprising:
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a. a collection chamber containing a hydrophilic polymer; b. a fluidic channel connected to the collection chamber; c. a sensing chamber connected to the fluidic channel, wherein the sensing chamber is operably linked to a processor that allows detection of the analyte using electrochemical sensing. - View Dependent Claims (46, 47, 48, 49, 50, 51)
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52. A method of determining the concentration of an analyte in a fluid sample comprising:
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a. receiving said fluid in a collection chamber comprising a hydrophilic polymer; b. transferring the liquid collected in step (a) to the sensing chamber of said device to determine the presence of said analyte in said fluid; and c. correlating the determined presence of the analyte in said liquid with a concentration of said analyte in said liquid. - View Dependent Claims (53, 54, 55, 56)
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Specification