Processing

Please wait...

Settings

Settings

Goto Application

1. EP1019706 - METHOD FOR DETERMINING THE GLUCOSE CONTENT OF A BLOOD SAMPLE

Office European Patent Office
Application Number 98949165
Application Date 02.10.1998
Publication Number 1019706
Publication Date 19.07.2000
Publication Kind A1
IPC
G01N 21/86
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
86Investigating moving sheets
G01N 21/86
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
86Investigating moving sheets
CPC
G01N 21/8483
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
8483Investigating reagent band
G01N 2201/129
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2201Features of devices classified in G01N21/00
12Circuits of general importance; Signal processing
129Using chemometrical methods
Applicants 77 ELEKTRONIKA MUSZERIPARI KFT
Inventors TAJNAFO I GABOR
Designated States
Priority Data 9701607 03.10.1997 HU
9800091 02.10.1998 HU
Title
(DE) VERFAHREN ZU BESTIMMUNG DES GLUKOSEGEHALTES EINER BLUTPROBE
(EN) METHOD FOR DETERMINING THE GLUCOSE CONTENT OF A BLOOD SAMPLE
(FR) PROCEDE DE DETERMINATION DU TAUX DE GLUCOSE DANS UN ECHANTILLON SANGUIN
Abstract
(EN)
The invention relates to a method and apparatus for determining a chemical component from a sample, where the sample is measured on a test strip with the help of a colour reaction. The method concerns finding the measurement time Tm for measuring the reflection of the test strip. The method comprises the following steps: a) Recording the R(t) function, b) Determining the T0 starting time at the detection of the wetting through of the sample, c) generating the function R(t)+L(t), d) monitoring and storing the ext[R(t)+L(t)] extreme value of the R(t)+L(t) function, and, at the same time, e) generating the function R(t)+L(t)-ext[R(t)+L(t)] from the time of reaching an ext[R(t)+L(t)] extreme value, f) when the R(t)+L(t)-ext[R(t)+L(t)] function reaches a predetermined C(t) value, determining the Tm measuring time.

(FR)
L'invention concerne un procédé et un appareil de détermination d'un composant chimique à partir d'un échantillon, lequel est mesuré sur une bande d'essai à l'aide d'une réaction de coloration. Le procédé consiste à trouver le temps de mesure Tm permettant de mesurer la réflexion de la bande d'essai. Le procédé consiste en outre a) à enregistrer la fonction R(t), b) à déterminer le temps de démarrage T0 à la détection du mouillage de l'échantillon, c) à créer la fonction R(t)+L(t), d) à surveiller et mémoriser la valeur extrême ext[R(t)+L(t)] de la fonction R(t)+L(t) et en même temps, e) à créer la fonction R(t)+L(t)-ext[R(t)+L(t)] à partir du temps qu'il faut pour atteindre une valeur extrême ext[R(t)+L(t)] et f) à déterminer le temps de mesure Tm lorsque la fonction R(t)+L(t)-ext[R(t)+L(t)] atteint une valeur prédéterminée C(t).