Breath analysis systems and methods for asthma, tuberculosis and lung cancer diagnostics and disease management
First Claim
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1. A method for detecting whether a subject has a respiratory disease or monitoring a subject with a respiratory disease said method comprising:
- receiving, at a portable apparatus having a gas chromatograph coupled to a detector array, ambient air to be inhaled by said subject, wherein the portable apparatus includes the gas chromatograph and the detector array replaceably mounted to a substrate of the portable apparatus;
filtering, by a volatile organic compound (VOC) filter, the ambient air to remove at least a portion of background VOC content in the ambient air;
further filtering, by a nitric oxide (NO) filter, the ambient air to remove at least a portion of background NO content from the ambient air;
providing, at the portable apparatus, at least a portion of the ambient air to said subject to be inhaled;
receiving, at the portable apparatus, breath exhaled from said subject;
contacting the breath exhaled from said subject with the gas chromatograph mounted to the substrate of the portable apparatus;
producing, by the detector array coupled to the gas chromatograph and mounted to the substrate of the portable apparatus, an indicator based on the exhaled breath from said subject, the indicator being produced based at least in part on one or more analytes in the breath exhaled from said subject, and the indicator being indicative of one or more biomarkers in the exhaled breath; and
analyzing, by an analysis circuit disposed on said portable apparatus, said indicator to determine whether said subject has asthma, wherein the determination is made based on an NO concentration level in conjunction with VOC detection from the breath exhaled from said subject.
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Abstract
Methods and systems are disclosed for the detecting of whether a subject has a lung disorder such as asthma, tuberculosis or lung cancer. Monitoring the subject'"'"'s health and prognosis is also disclosed.
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Citations
28 Claims
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1. A method for detecting whether a subject has a respiratory disease or monitoring a subject with a respiratory disease said method comprising:
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receiving, at a portable apparatus having a gas chromatograph coupled to a detector array, ambient air to be inhaled by said subject, wherein the portable apparatus includes the gas chromatograph and the detector array replaceably mounted to a substrate of the portable apparatus; filtering, by a volatile organic compound (VOC) filter, the ambient air to remove at least a portion of background VOC content in the ambient air; further filtering, by a nitric oxide (NO) filter, the ambient air to remove at least a portion of background NO content from the ambient air; providing, at the portable apparatus, at least a portion of the ambient air to said subject to be inhaled; receiving, at the portable apparatus, breath exhaled from said subject; contacting the breath exhaled from said subject with the gas chromatograph mounted to the substrate of the portable apparatus; producing, by the detector array coupled to the gas chromatograph and mounted to the substrate of the portable apparatus, an indicator based on the exhaled breath from said subject, the indicator being produced based at least in part on one or more analytes in the breath exhaled from said subject, and the indicator being indicative of one or more biomarkers in the exhaled breath; and analyzing, by an analysis circuit disposed on said portable apparatus, said indicator to determine whether said subject has asthma, wherein the determination is made based on an NO concentration level in conjunction with VOC detection from the breath exhaled from said subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 23, 26)
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21. A portable apparatus comprising:
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a substrate; a volatile organic compound (VOC) filter configured to filter ambient air received at the portable apparatus to remove at least a portion of background VOC content in the ambient air; a nitric oxide (NO) filter configured to further filter the ambient air to remove at least a portion of background NO content from the ambient air prior to the ambient air being inhaled by a subject; a gas chromatograph replaceably mounted on the substrate, the gas chromatograph configured to receive a fluid associated with breath exhaled from a subject and separates individual chemicals in the fluid; a preconcentrator configured to increase a concentration of one or more analytes in the breath exhaled from said subject; a detector array replaceably mounted on the substrate, the detector array configured to receive the individual chemicals from the gas chromatograph and produces an indicator based on the received individual chemicals, the indicator being produced based at least in part on the one or more analytes in the breath exhaled from said subject, and the indicator being indicative of one or more biomarkers in the exhaled breath; and an analyzer configured to analyze the produced indicator and determine an NO concentration level in conjunction with one or more VOCs from the breath exhaled from said subject. - View Dependent Claims (22, 24, 25)
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27. A method for detecting whether a subject has a respiratory disease or monitoring a subject with a respiratory disease said method comprising:
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receiving, at a handheld apparatus having a gas chromatograph coupled to a detector array, breath exhaled from said subject, wherein the handheld apparatus includes the gas chromatograph and the detector array replaceably mounted to a substrate of the handheld apparatus; increasing, by a preconcentrator on the handheld apparatus, a concentration of one or more analytes in the breath exhaled from said subject; contacting the increased concentration of the one or more analytes with the gas chromatograph mounted to the substrate of the handheld apparatus; producing, by the detector array on the handheld apparatus, an indicator based on the exhaled breath from said subject, the indicator being produced based at least in part on the one or more analytes in the breath exhaled from said subject, and the indicator being indicative of one or more biomarkers in the exhaled breath; and analyzing, by an analysis circuit disposed on said handheld apparatus, said produced indicator to determine whether said subject has the respiratory disease, wherein the determination is made based on an NO concentration level in conjunction with VOC detection from the breath exhaled from said subject. - View Dependent Claims (28)
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Specification