Systems to view and analyze the results from diffraction-based diagnostics
First Claim
1. A system for detecting an analyte in a sample comprising:
- a diffraction-based sensing device comprising a substrate, wherein the substrate comprises a polymer film; and
an analyzer comprising;
a light source for supplying light to the diffraction-based device, wherein the diffraction-based sensing device diffracts light when the analyte is present and does not diffract light when the analyte is not present, the diffracted light comprising light transmitted through or reflected from the substrate;
means for measuring an intensity of diffracted light and an intensity of non-diffracted light;
means for converting the measured intensity of diffracted light and non-diffracted light to a result indicating whether an analyte is present in a sample; and
means for informing a user whether the analyte is present in the sample.
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Accused Products
Abstract
An analyzer useful in determining the presence of an analyte using a diffraction based sensing device and methods and systems using this device. The present invention may be used with a variety of different diffraction-based diagnostic methods and systems. The analyzer enhances the accuracy and/or usefulness of these devices in detecting analytes, while providing more ease-of-use and convenience to the user. The analyzer may include a light source, a photodiode, a microprocessor and a display system for informing the user of the result. Other features include mirrors, lenses, a sample holder, and a mask for blocking out some light. The analyzer and related method and system may be used in a large number of environments, including commercial, professional, and individual.
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Citations
30 Claims
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1. A system for detecting an analyte in a sample comprising:
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a diffraction-based sensing device comprising a substrate, wherein the substrate comprises a polymer film; and
an analyzer comprising;
a light source for supplying light to the diffraction-based device, wherein the diffraction-based sensing device diffracts light when the analyte is present and does not diffract light when the analyte is not present, the diffracted light comprising light transmitted through or reflected from the substrate;
means for measuring an intensity of diffracted light and an intensity of non-diffracted light;
means for converting the measured intensity of diffracted light and non-diffracted light to a result indicating whether an analyte is present in a sample; and
means for informing a user whether the analyte is present in the sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for detecting an analyte in a sample comprising:
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a diffraction-based sensing device comprising a substrate, wherein the substrate comprises a polymer film; and
an analyzer comprising;
a light source for supplying light to the diffraction-based device, wherein the diffraction-based sensing device diffracts light when the analyte is present and does not diffract light when the analyte is not present, the diffracted light comprising light transmitted through or reflected from the substrate;
a photodiode for measuring an intensity of diffracted light and an intensity of non-diffracted light;
a microprocessor adapted to receive a measurement from the photodiode, the microprocessor comprising a software element for performing an algorithm that is based on the intensity of the diffracted light and the intensity of the non-diffracted light, wherein the result of the algorithm is used to indicate the presence of the analyte; and
a display system. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification