WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Options
Query Language
Stem
Sort by:
List Length
Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2012096825) HYBRID SPECTROPHOTOMETRIC MONITORING OF BIOLOGICAL CONSTITUENTS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2012/096825 International Application No.: PCT/US2012/020319
Publication Date: 19.07.2012 International Filing Date: 05.01.2012
IPC:
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
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: ZHANG, Wei[US/US]; US (UsOnly)
YU, Zengpin[US/US]; US (UsOnly)
WANG, Shih-ping[US/US]; US (UsOnly)
O2 MEDTECH INC.[US/US]; 4984 El Camino Real, Suite 115 Los Altos, CA 94022, US (AllExceptUS)
Inventors: ZHANG, Wei; US
YU, Zengpin; US
WANG, Shih-ping; US
Agent: KAVRUKOV, Ivan, S; Cooper & Dunham LLP 30 Rockefeller Plaza, 20th Floor New York, NY 10112, US
Priority Data:
13/004,39311.01.2011US
Title (EN) HYBRID SPECTROPHOTOMETRIC MONITORING OF BIOLOGICAL CONSTITUENTS
(FR) SURVEILLANCE SPECTROPHOTOMÉTRIQUE HYBRIDE DE CONSTITUANTS BIOLOGIQUES
Abstract:
(EN) Systems, methods, and related computer program products for non-invasive NIR spectrophotometric (NIRS) monitoring of total blood hemoglobin levels and/or other blood constituent levels based on a hybrid combination of phase modulation spectrophotometry (PMS) and continuous wave spectrophotometry (CWS) are described. PMS-based measurements including both amplitude and phase information used in the determination of a non-pulsatile component of an absorption property for each of at least three distinct wavelengths are processed to compute PMS-derived intermediate information at least partially representative of a scattering characteristic. CWS-based measurements including amplitude information is processed in conjunction with the PMS-derived intermediate information to compute a pulsatile component of the absorption property. A metric representative of at least one chromophore level, such as the total blood hemoglobin level, is computed from the pulsatile component of the absorption property at the at least three wavelengths and displayed on an output display.
(FR) L'invention concerne des systèmes, des procédés et des produits de programmes informatiques associés pour une surveillance spectrophotométrique NIR non invasive (NIRS) des taux sanguins totaux d'hémoglobine et/ou d'autres taux de constituants sanguins sur la base d'une combinaison hybride d'une spectrophotométrie à modulation de phase (PMS) et d'une spectrophotométrie à onde continue (CWS). Des mesures basées sur la PMS comprenant à la fois des informations d'amplitude et de phase, utilisées dans la détermination d'un composant non pulsatile d'une propriété d'absorption pour chacune d'au moins trois longueurs d'onde distinctes, sont traitées pour calculer des informations intermédiaires issues de PMS au moins partiellement représentatives d'une caractéristique de diffusion. Des mesures à base de CWS comprenant des informations d'amplitude sont traitées en conjonction aux informations intermédiaires issues de PMS pour calculer une composante pulsée de la propriété d'absorption. Une mesure représentative d'au moins un taux de chromophore, tel que le taux sanguin total d'hémoglobine est calculée à partir de la composante pulsée de la propriété d'absorption des au moins trois longueurs d'onde et affichée sur un dispositif d'affichage en sortie.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, 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, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)