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1. WO2012135100 - METHOD AND APPARATUS FOR NON-INVASIVE PHOTOMETRIC BLOOD CONSTITUENT DIAGNOSIS

Publication Number WO/2012/135100
Publication Date 04.10.2012
International Application No. PCT/US2012/030530
International Filing Date 26.03.2012
IPC
A61B 5/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
CPC
A61B 5/14532
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
14532for measuring glucose, e.g. by tissue impedance measurement
A61B 5/14535
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
14535for measuring haematocrit
A61B 5/14546
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
14546for measuring analytes not otherwise provided for, e.g. ions, cytochromes
A61B 5/1455
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
145Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
1455using optical sensors, e.g. spectral photometrical oximeters
A61B 5/4845
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
48Other medical applications
4845Toxicology, e.g. by detection of alcohol, drug or toxic products
Applicants
  • STEUER, Robert [US]/[US]
Inventors
  • STEUER, Robert
Agents
  • MELSER, Allen
Priority Data
61/469,40030.03.2011US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR NON-INVASIVE PHOTOMETRIC BLOOD CONSTITUENT DIAGNOSIS
(FR) MÉTHODE ET APPAREIL SERVANT À LA DÉTERMINATION PHOTOMÉTRIQUE NON-INVASIVE DE CONSTITUANTS SANGUINS
Abstract
(EN)
A non-invasive method and apparatus utilizing a single wavelength (800 nm, isobestic) for the instantaneous, reflective, non-pulsatile spatially resolved reflectance system, apparatus and mathematics that allows for the correct determination of critical photo-optical parameters in vivo. Transcutaneous blood constituent (analyte or drug level) measurements can be determined in real-time. The "closed-form" nature of the mathematics allows for immediate calculations and real-time display of Hematocrit and other pertinent blood values in a variety of handheld or other like devices.
(FR)
La présente invention concerne un appareil et une méthode non-invasive utilisant une longueur d'onde unique (800 nm, point isobestique) pour le système de réflectance instantanée, réfléchie, non pulsatile et spatialement résolue, un appareil et des formules mathématiques permettant de déterminer avec précision des paramètres photo-optiques critiques in vivo. Des mesures transcutanées portant sur des constituants sanguins (taux d'analytes ou de médicaments) peuvent être obtenues en temps réel. La nature en "forme fermée" des formules mathématiques permet des calculs immédiats et un affichage en temps réel de l'hématocrite et d'autres valeurs sanguines pertinentes au moyen de divers dispositifs portatifs ou d'autres dispositifs analogues.
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