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1. (WO2017129634) ESTIMATING A SUBSTANCE CONCENTRATION USING MULTIPLE NON-INVASIVE SENSORS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/129634 International Application No.: PCT/EP2017/051573
Publication Date: 03.08.2017 International Filing Date: 25.01.2017
IPC:
G06F 19/00 (2011.01) ,A61B 5/1455 (2006.01) ,A61B 5/053 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
19
Digital computing or data processing equipment or methods, specially adapted for specific applications
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
145
Measuring characteristics of blood in vivo, e.g. gas concentration, pH-value
1455
using optical sensors, e.g. spectral photometrical oximeters
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
05
Measuring for diagnosis by means of electric currents or magnetic fields
053
Measuring electrical impedance or conductance of a portion of the body
Applicants:
PREDIKTOR MEDICAL AS [NO/NO]; Habornveien 48B Gamle N-1630 Fredrikstad, NO
Inventors:
VEGAR KARSTANG, Terje; NO
Agent:
HALEY, Stephen; GB
Priority Data:
16152594.425.01.2016EP
Title (EN) ESTIMATING A SUBSTANCE CONCENTRATION USING MULTIPLE NON-INVASIVE SENSORS
(FR) ESTIMATION D’UNE CONCENTRATION D'UNE SUBSTANCE AU MOYEN DE PLUSIEURS CAPTEURS NON INVASIFS
Abstract:
(EN) A method for determining a level of a substance in a material is disclosed. The method comprises: obtaining a first measured spectrum from a first noninvasive sensor, the first measured spectrum relating to a first characteristic of the material; obtaining a second measured spectrum from a second noninvasive sensor, the second measured spectrum relating to a second characteristic of the material; calculating a first intermediate estimate ŷx of the concentration of a chemical constituent in the material based on the first measured spectrum; calculating a second intermediate estimate ŷ2 of the concentration of a chemical constituent in the material based on the second measured spectrum; determining a first and second residual spectrum r1, r2, the residual spectra defined as the deviation between the measured spectrum and an estimated spectrum, the estimated spectrum being the component of the measured spectrum corresponding to the intermediate estimate of the concentration of the chemical constituent; and calculating an improved estimated concentration of the chemical constituent in the material based on the first intermediate estimate ŷ1, the second intermediate estimate ŷ2 and the residual spectra r1, r2.
(FR) L'invention porte sur un procédé pour déterminer un taux d'une substance dans un matériel. Le procédé comprend les étapes consistant : à obtenir un premier spectre mesuré à partir d'un premier capteur non invasif, le premier spectre mesuré se rapportant à une première caractéristique du matériel ; à obtenir un second spectre mesuré à partir d'un second capteur non invasif, le second spectre mesuré se rapportant à une seconde caractéristique du matériel ; à calculer une première estimation intermédiaire ŷx de la concentration d'un constituant chimique dans le matériel sur la base du premier spectre mesuré ; à calculer une seconde estimation intermédiaire ŷ2 de la concentration d'un constituant chimique dans le matériel sur la base du second spectre mesuré ; à déterminer un premier et un second spectre résiduel r1, r2, les spectres résiduels étant définis comme l’écart entre le spectre mesuré et un spectre estimé, le spectre estimé étant la composante du spectre mesuré correspondant à l'estimation intermédiaire de la concentration du constituant chimique ; et à calculer une concentration estimée améliorée du constituant chimique dans le matériel sur la base de la première estimation intermédiaire ŷ1, la seconde estimation intermédiaire ŷ2 et les spectres résiduels r1, r2.
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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, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
Also published as:
CN107924715EP3408772