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1. (WO2019027723) SENSING CANNABIS AND OPIOIDS IN EXHALED BREATH BY INFRARED SPECTROSCOPY
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Pub. No.: WO/2019/027723 International Application No.: PCT/US2018/043385
Publication Date: 07.02.2019 International Filing Date: 24.07.2018
IPC:
G01N 21/35 (2014.01) ,G01N 21/39 (2006.01) ,A61B 5/08 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
25
Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31
Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35
using infra-red light
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
25
Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31
Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
39
using tunable lasers
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
08
Measuring devices for evaluating the respiratory organs
Applicants:
N2 BIOMEDICAL LLC [US/US]; One Patriots Park Bedford, Massachusetts 01730, US
Inventors:
LINDEN, Kurt J.; US
Agent:
CLARK, T.J.; US
HUNTER CLARK PLLC; 7 South Pond Street Newburyport, Massachusetts 01950, US
Priority Data:
16/043,24624.07.2018US
62/540,11502.08.2017US
Title (EN) SENSING CANNABIS AND OPIOIDS IN EXHALED BREATH BY INFRARED SPECTROSCOPY
(FR) DÉTECTION DE CANNABIS ET D'OPIOÏDES DANS L'HALEINE EXHALÉE PAR SPECTROSCOPIE INFRAROUGE
Abstract:
(EN) Techniques for detecting narcotics such as tetrahydrocannabinol (THC) or other aerosols such as cannabinoids, opioids, etc., in an exhaled breath using infrared spectroscopy are provided. An example of an apparatus for sensing THC according to the disclosure includes a tunable laser source, at least one photodetector, a sample cell disposed between the tunable laser source and the at least one photodetector, and at least one processor operably coupled to the tunable laser source and the at least one photodetector and configured to provide a control signal to the tunable laser source, determine a spectral absorption line or group of absorption lines associated with THC based on an intensity of infrared light detected by the at least one photodetector, and determine a THC concentration value based on the spectral absorption line intensity. A laser-based apparatus for sensing narcotics in exhaled breath may include a single, dual, or multi-optical frequency comb spectrometer.
(FR) L'invention concerne des techniques de détection de narcotiques telles que le tétrahydrocannabinol (THC) ou d'autres aérosols tels que des cannabinoïdes, des opioïdes, etc. dans une haleine exhalée à l'aide d'une spectroscopie infrarouge. Un exemple d'un appareil de détection de THC selon l'invention comprend une source laser ajustable, au moins un photodétecteur, une cellule d'échantillon placée entre la source laser ajustable et le ou les photodétecteurs, et au moins un processeur couplé de manière fonctionnelle à la source laser ajustable et au ou aux photodétecteurs et conçu pour envoyer un signal de commande à la source laser ajustable, déterminer une ligne d'absorption spectrale ou un groupe de lignes d'absorption associées au THC sur la base d'une intensité de lumière infrarouge détectée par le ou les photodétecteurs, et déterminer une valeur de concentration de THC sur la base de l'intensité de ligne d'absorption spectrale. Un appareil basé sur un laser pour détecter des narcotiques dans l'air expiré peut comprendre un spectromètre à peigne de fréquence unique, double ou multi-optique.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)