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1. (WO2019026062) A METHOD FOR OXYGEN SATURATION MEASUREMENT IN ARTERIAL BLOOD AND AN APPARATUS THEREFOR
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Pub. No.: WO/2019/026062 International Application No.: PCT/IL2018/050827
Publication Date: 07.02.2019 International Filing Date: 25.07.2018
IPC:
A61B 5/08 (2006.01) ,A61B 5/145 (2006.01) ,A61B 5/1455 (2006.01) ,A61B 5/1477 (2006.01)
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
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
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
145
Measuring characteristics of blood in vivo, e.g. gas concentration, pH-value
1468
using chemical or electrochemical methods, e.g. by polarographic means
1477
non-invasive
Applicants:
JERUSALEM COLLEGE OF TECHNOLOGY [IL/IL]; 21 Havaad Haleumi St. 9372115 Jerusalem, IL
Inventors:
NITZAN, Meir; IL
Agent:
PINCHAS, Moshe; IL
PINCHAS, Moshe; IL
Priority Data:
62/538,81431.07.2017US
Title (EN) A METHOD FOR OXYGEN SATURATION MEASUREMENT IN ARTERIAL BLOOD AND AN APPARATUS THEREFOR
(FR) PROCÉDÉ DE MESURE DE LA SATURATION EN OXYGÈNE DU SANG ARTÉRIEL ET APPAREIL À CET EFFET
Abstract:
(EN) An apparatus for oxygen saturation measurements in small arteries in a tissue. The apparatus includes a first light source configured to emit infrared light into a surface of the tissue, the infrared light having a first peak intensity wavelength and a second peak intensity wavelengths; and a detector configured to detect the transmitted light at the first and the second peak intensity wavelengths after passing through the tissue. Wherein the first peak intensity wavelength includes light below an isosbestic point, and wherein an extinction coefficient of Hb for the first peak intensity wavelength light is at a proximity of a local externum point on the curve of extinction coefficient versus wavelength.
(FR) L'invention concerne un appareil pour des mesures de la saturation en oxygène dans les petites artères d'un tissu. L'appareil comprend une première source de lumière conçue pour émettre une lumière infrarouge en direction de la surface du tissu, la lumière infrarouge présentant une première longueur d'onde de pic d'intensité et une seconde longueur d'onde de pic d'intensité; et un détecteur conçu pour détecter la lumière transmise aux première et seconde longueurs d'onde de pic d'intensité après avoir traversé le tissu. La première longueur d'onde de pic d'intensité comprend de la lumière en dessous d'un point isosbestique, tandis que le coefficient d'extinction de l'Hb pour la première lumière de longueur d'onde de pic d'intensité est proche d'un point externe local sur la courbe représentant le coefficient d'extinction en fonction de la longueur d'onde.
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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)