Systems and methods for screening asymptomatic virus emitters
A method comprising at least one light source configured to generate a light of at least one wavelength and project the light over an optical path, a sample device, the device containing a sample obtained from exhalation of a person, a vortex mask configured to receive the light after the light passes through at least a portion of the sample device, the vortex mask including a series of concentric circles etched in a substrate, the vortex mask configured to provide destructive interference of coherent light received from the at least one light source, a detector configured to detect and measure wavelength intensities from the light in the optical path, the wavelength intensities being impacted by the light passing through the sample, the detector receiving the light that remained after passing through the vortex mask, and a processor configured to provide measurement results based on the wavelength intensities.
1 . A system comprising:
at least one processor; and
memory containing instructions to configure the at least one processor to perform the steps of:
identifying dark noise caused by changes in thermal energy of a first spectrometer by taking first measurements with the first spectrometer while projecting a first light through a transport medium;
normalizing the function of the first spectrometer by taking second measurements with the first spectrometer of a first known substance, identifying at least one peak spectral intensity of the second measurements and identifying a normalization adjustment such that the at least one peak spectral intensity is modified to be approximate to an expected spectral intensity for the first known substance, the normalization adjustment assisting in flat fielding a spectral sensor of the first spectrometer;
measuring first measurements using the first spectrometer by projecting a third light through a biological sample of a first patient and a vortex mask to create third measurements based on absorption and transmittance of the first light through the biological sample, the dark noise being removed from the first measurements and the normalization adjustment being applied to create the third measurements, the vortex mask providing destructive interference of the third light;
comparing the third measurements to a set of reference measurements; and
when a subset of the third measurements match or exceed at least a subset of the set of reference measurements, providing an alert indicating presence of a pathogen in the biological sample of the first patient.
2 . The system of claim 1 , wherein the instructions further configure the at least one processor to perform the steps of: when a subset of the first measurements do not match or exceed at least the subset of the set of reference measurements, providing a third message to a first health communication over a communication network, the third message indicating that a test did not indicate a condition of the first patient.
3 . The system of claim 1 , wherein the set of reference measurements comprises 735 nm, 780 nm, 810 nm, and 860 nm.
4 . The system of claim 3 , wherein the alert indicates the presence of Covid-19 in the biological sample.
5 . The system of claim 1 , wherein the third light is projected through a cuvette containing the biological sample of the first patient.
6 . The system of claim 1 , wherein the set of reference measurements are determined by:
identifying a plurality of samples that have been previously confirmed as containing the pathogen;
projecting a fourth light through each of the samples by any number of spectrometers to generate a plurality of wavelength measurements;
for each of the plurality of wavelength measurements, removing noise measurements, the noise measurements being measured from a sample that does not contain the pathogen to create a plurality of filtered measurements; and
based on a combination of filtered measurements, identifying persistent wavelength intensities to be the set of reference measurements.
7 . The system of claim 1 , wherein the set of reference measurements are determined by:
identifying a plurality of samples that have been previously confirmed as containing the pathogen;
projecting light through each of the samples by any number of spectrometers to generate a plurality of wavelength measurements;
for each of the plurality of wavelength measurements, removing noise measurements associated with a particular spectrometer of the any number of spectrometers that generated the particular wavelength measurements of the plurality of wavelength measurements to generate filtered measurements, the noise measurements for the particular spectrometer indicating thermal noise; and
based on a combination of filtered measurements, identifying persistent wavelength intensities to be the set of reference measurements.
8 . The system of claim 1 , wherein the transport medium is a viral transport medium (VTM).
9 . The system of claim 1 , wherein the third measurements include any number of separate measurements of the biological sample.
10 . The system of claim 9 , wherein the third measurements are aggregations of wavelength intensities from a plurality of the any number of separate measurements of the biological sample.
11 . The system of claim 1 , wherein the first measurements indicate wavelength intensities across a spectrum.
12 . A method comprising:
identifying dark noise caused by changes in thermal energy of a first spectrometer by taking first measurements with the first spectrometer while projecting a first light through a transport medium;
normalizing the function of the first spectrometer by taking second measurements with the first spectrometer of a first known substance, identifying at least one peak spectral intensity of the second measurements and identifying a normalization adjustment such that the at least one peak spectral intensity is modified to be approximate to an expected spectral intensity for the first known substance, the normalization adjustment assisting in flat fielding a spectral sensor of the first spectrometer;
measuring first measurements using the first spectrometer by projecting a third light through a biological sample of a first patient and a vortex mask to create third measurements based on absorption and transmittance of the first light through the biological sample, the dark noise being removed from the first measurements and the normalization adjustment being applied to create the third measurements, the vortex mask providing destructive interface of the third light;
comparing the third measurements to a set of reference measurements; and
when a subset of the third measurements match or exceed at least a subset of the set of reference measurements, providing an alert indicating presence of a pathogen in the biological sample of the first patient.
13 . The method of claim 12 , further comprising:
when a subset of the first measurements do not match or exceed at least the subset of the set of reference measurements, providing a third message to a first health communication over a communication network, the third message indicating that a test did not indicate a condition of the first patient.
14 . The method of claim 12 , wherein the set of reference measurements comprises 735 nm, 780 nm, 810 nm, and 860 nm.
15 . The method of claim 14 , wherein the alert indicates the presence of Covid-19 in the biological sample.
16 . The method of claim 12 , wherein the third light is projected through a cuvette containing the biological sample of the first patient.
17 . The method of claim 12 , wherein the set of reference measurements are determined by:
identifying a plurality of samples that have been previously confirmed as containing the pathogen;
projecting a fourth light through each of the samples by any number of spectrometers to generate a plurality of wavelength measurements;
for each of the plurality of wavelength measurements, removing noise measurements, the noise measurements being measured from a sample that does not contain the pathogen to create a plurality of filtered measurements; and
based on a combination of filtered measurements, identifying persistent wavelength intensities to be the set of reference measurements.
18 . The method of claim 12 , wherein the transport medium is a viral transport medium (VTM).
19 . The method of claim 12 , wherein the third measurements include any number of separate measurements of the biological sample.
20 . The method of claim 19 , wherein the third measurements are aggregations of wavelength intensities from a plurality of the any number of separate measurements of the biological sample.
21 . The method of claim 12 , wherein the first measurements indicate wavelength intensities across a spectrum.
22 . A non-transitory computer readable medium containing executable instructions, the instructions being executable by at least one processor, the method comprising:
identifying dark noise caused by changes in thermal energy of a first spectrometer by taking first measurements with the first spectrometer while projecting a first light through a transport medium;
normalizing the function of the first spectrometer by taking second measurements with the first spectrometer of a first known substance, identifying at least one peak spectral intensity of the second measurements and identifying a normalization adjustment such that the at least one peak spectral intensity is modified to be approximate to an expected spectral intensity for the first known substance, the normalization adjustment assisting in flat fielding a spectral sensor of the first spectrometer;
measuring first measurements using the first spectrometer by projecting a third light through a biological sample of a first patient and a vortex mask to create third measurements based on absorption and transmittance of the first light through the biological sample, the dark noise being removed from the first measurements and the normalization adjustment being applied to create the third measurements, the vortex mask providing destructive interference of the third light;
comparing the third measurements to a set of reference measurements; and
when a subset of the third measurements match or exceed at least a subset of the set of reference measurements, providing an alert indicating presence of a pathogen in the biological sample of the first patient.