公开(公告)号：CA3119666C

公开(公告)日：2023-10-03

申请号：CA3119666

申请日：2019-11-29

Applicant: HOFFMANN LA ROCHE

Inventor： LIMBURG BERND ,  BERG MAX ,  HAILER FREDRIK ,  TUERCK VOLKER ,  SKURIDINA DARIA ,  OSTAPENKO IRINA

IPC: G01N21/84

Abstract: A method of determining a concentration of an analyte in a bodily fluid by using a mobile device (110) having a camera (112) is proposed. The method comprises the following steps: a) prompting a user to one or more of - apply a drop of bodily fluid to at least one test field (114) of an optical test strip (116), or - confirm an application of a drop of bodily fluid to at least one test field (114) of an optical test strip (116); b) waiting for a predetermined minimum amount of waiting time; c) capturing at least one image of at least one part of the test field (114), with the test field (114) having the drop of bodily fluid applied thereto, by using the camera (112); d) determining the concentration of the analyte in the bodily fluid based on the image captured in step c), comprising: i) estimating a point in time of sample application to the test field (114), by taking into account at least one first item of information derived from the image captured in step c) by using at least one first color channel of a color space, wherein the first item of information is time-dependent; and ii) estimating the concentration of the analyte in the bodily fluid, by taking into account at least one second item of information derived from the image by using at least one second color channel of the color space, wherein the second item of information is concentration-dependent.

公开(公告)号：CA3141047A1

公开(公告)日：2020-12-30

申请号：CA3141047

申请日：2020-06-23

Applicant: HOFFMANN LA ROCHE

Inventor： BERG MAX ,  HAILER FREDRIK ,  LIMBURG BERND ,  SKURIDINA DARIA ,  TUERCK VOLKER ,  WINKELNKEMPER MOMME

IPC: G01N21/78 ,  G01N21/84

Abstract: A method of determining a concentration of an analyte in a bodily fluid by using a mobile device (110) having a camera (112) is proposed. The method comprises the following steps: a) taking a series of calibration images (114) of at least one region of interest (116) of an object (118) by using the camera (112), wherein the calibration images (114) differ in their brightness; b) deriving from each calibration image (114) of the series taken in step a) at least one key calibration figure (137) characteristic for a tone mapping function of the mobile device (110); c) determining at least one probable tone mapping function (120) of the mobile device (110) by taking into account the key calibration figures (137) from the calibration images (114) of the series taken in step a); d) taking at least one analysis image of at least part of a test field (122) of an optical test strip (124), the test field (122) having the bodily fluid applied thereto; and e) determining the concentration of the analyte in the bodily fluid from the analysis image of the test field (122) by taking into account the probable tone mapping function (120) of the mobile device (110).

公开(公告)号：MA56381B1

公开(公告)日：2024-05-31

申请号：MA56381

申请日：2020-06-23

Applicant: HOFFMANN LA ROCHE

Inventor： LIMBURG BERND ,  BERG MAX ,  HAILER FREDRIK ,  TUERCK VOLKER ,  WINKELNKEMPER MOMME ,  SKURIDINA DARIA

IPC: G01N21/84 ,  G01N21/78

Abstract: L'invention concerne une méthode de détermination d'une concentration d'un analyte dans un fluide corporel à l'aide d'un dispositif mobile (110) comprenant une caméra (112). Le procédé comprend les étapes suivantes : a) prendre une série d'images d'étalonnage (114) d'au moins une région d'intérêt (116) d'un objet (118) à l'aide de la caméra (112), les images d'étalonnage (114) se distinguant par leur luminosité ; b) extraire de chaque image d'étalonnage (114) de la série prise à l'étape a) au moins un chiffre d'étalonnage clé (137) caractéristique d'une fonction de reproduction de tons du dispositif mobile (110) ; c) déterminer au moins une fonction de reproduction de tons probable (120) du dispositif mobile (110) en tenant compte des chiffres d'étalonnage clés (137) provenant des images d'étalonnage (114) de la série prise à l'étape a) ; d) prendre au moins une image d'analyse d'au moins une partie d'un champ d'essai (122) d'une bandelette réactive optique (124), le champ d'essai (122) comportant le fluide corporel ; et e) déterminer la concentration de l'analyte dans le fluide corporel à partir de l'image d'analyse du champ d'essai (122) en prenant en compte la fonction de reproduction de tons probable (120) du dispositif mobile (110).

公开(公告)号：MA56381A

公开(公告)日：2022-05-04

申请号：MA56381

申请日：2020-06-23

Applicant: HOFFMANN LA ROCHE ,  ROCHE DIABETES CARE GMBH

Inventor： BERG MAX ,  HAILER FREDRIK ,  LIMBURG BERND ,  SKURIDINA DARIA ,  TUERCK VOLKER ,  WINKELNKEMPER MOMME

IPC: G01N21/78 ,  G01N21/84

公开(公告)号：MA54282A

公开(公告)日：2022-03-09

申请号：MA54282

申请日：2019-11-29

Applicant: HOFFMANN LA ROCHE ,  ROCHE DIABETES CARE GMBH

Inventor： BERG MAX ,  HAILER FREDRIK ,  LIMBURG BERND ,  OSTAPENKO IRINA ,  SKURIDINA DARIA ,  TUERCK VOLKER

IPC: G01N21/84

公开(公告)号：BR112021025979A2

公开(公告)日：2022-02-08

申请号：BR112021025979

申请日：2020-06-23

Applicant: HOFFMANN LA ROCHE

Inventor： LIMBURG BERND ,  SKURIDINA DARIA ,  HAILER FREDRIK ,  BERG MAX ,  WINKELNKEMPER MOMME ,  TUERCK VOLKER

IPC: G01N21/78 ,  G01N21/84

Abstract: um método para determinar uma concentração de um analito em um fluido corporal usando um dispositivo móvel (110) com uma câmera (112) é proposto. o método compreende as seguintes etapas: a) fazer uma série de imagens de calibração (114) de pelo menos uma região de interesse (116) de um objeto (118) usando a câmera (112), em que as imagens de calibração (114) diferem em seu brilho; b) derivar de cada imagem de calibração (114) da série feita na etapa a) pelo menos uma característica de algarismo chave de calibração (137) para uma função de mapeamento de tom do dispositivo móvel (110); c) determinar pelo menos uma função de mapeamento de tom provável (120) do dispositivo móvel (110) levando em consideração os principais algarismos chave de calibração (137) das imagens de calibração (114) da série feita na etapa a); d) fazer pelo menos uma imagem de análise de pelo menos parte de um campo de teste (122) de uma tira de teste óptico (124), o campo de teste (122) tendo o fluido corporal aplicado ao mesmo; e e) determinar a concentração do analito no fluido corporal a partir da imagem de análise do campo de teste (122) levando em consideração a função de mapeamento de tom provável (120) do dispositivo móvel (110).

公开(公告)号：AU2020308586A1

公开(公告)日：2021-12-02

申请号：AU2020308586

申请日：2020-06-23

Applicant: HOFFMANN LA ROCHE

Inventor： BERG MAX ,  HAILER FREDRIK ,  LIMBURG BERND ,  SKURIDINA DARIA ,  TUERCK VOLKER ,  WINKELNKEMPER MOMME

IPC: G01N21/84 ,  G01N21/78

Abstract: A method of determining a concentration of an analyte in a bodily fluid by using a mobile device (110) having a camera (112) is proposed. The method comprises the following steps: a) taking a series of calibration images (114) of at least one region of interest (116) of an object (118) by using the camera (112), wherein the calibration images (114) differ in their brightness; b) deriving from each calibration image (114) of the series taken in step a) at least one key calibration figure (137) characteristic for a tone mapping function of the mobile device (110); c) determining at least one probable tone mapping function (120) of the mobile device (110) by taking into account the key calibration figures (137) from the calibration images (114) of the series taken in step a); d) taking at least one analysis image of at least part of a test field (122) of an optical test strip (124), the test field (122) having the bodily fluid applied thereto; and e) determining the concentration of the analyte in the bodily fluid from the analysis image of the test field (122) by taking into account the probable tone mapping function (120) of the mobile device (110).

公开(公告)号：HUE066763T2

公开(公告)日：2024-09-28

申请号：HUE20733814

申请日：2020-06-23

Applicant: F HOFFMANN LA ROCHE AG

Inventor： BERG MAX ,  HAILER FREDRIK ,  LIMBURG BERND ,  SKURIDINA DARIA ,  TUERCK VOLKER ,  WINKELNKEMPER MOMME

IPC: G01N21/84 ,  G01N21/78

公开(公告)号：ZA202109007B

公开(公告)日：2022-08-31

申请号：ZA202109007

申请日：2021-11-12

Applicant: HOFFMANN LA ROCHE

Inventor： BERG MAX ,  HAILER FREDRIK ,  LIMBURG BERND ,  SKURIDINA DARIA ,  TUERCK VOLKER ,  WINKELNKEMPER MOMME

Abstract: A method of determining concentration of an analyte in a body fluid using a mobile device having a camera is disclosed. In the inventive method, the camera is used to take a series of calibration images of a region of interest of an object. The calibration images differ in their brightness. A key calibration figure is derived from each calibration image, the key calibration images being characteristic for a tone mapping function of the mobile device. A probable tone mapping function of the mobile device is determined by taking into account the key calibration figures. An analysis image is taken of at least part of a test field of an optical test strip, the test field having a body fluid applied thereto. Analyte concentration is determined from the analysis image of the test field by taking into account the probable tone mapping function of the mobile device.

公开(公告)号：AR119232A1

公开(公告)日：2021-12-01

申请号：ARP200101778

申请日：2020-06-24

Applicant: HOFFMANN LA ROCHE

Inventor： SKURIDINA DARIA ,  WINKELNKEMPER MOMME ,  TUERCK VOLKER ,  HAILER FREDRIK ,  BERG MAX ,  LIMBURG BERND

IPC: G01N21/78

Abstract: Se propone un método para determinar una concentración de un analito en un fluido corporal mediante el uso de un dispositivo móvil (110) que tiene una cámara (112). El método comprende los siguientes pasos: a) tomar una serie de imágenes de calibración (114) de al menos una región de interés (116) de un objeto (118) usando la cámara (112), en donde las imágenes de calibración (114) difieren en su brillo; b) derivar de cada imagen de calibración (114) de la serie tomada en el paso a), al menos una cifra de calibración clave (137) característica para una función de mapeo de tonos del dispositivo móvil (110); c) determinar al menos una función de mapeo de tonos probable (120) del dispositivo móvil (110) teniendo en cuenta las cifras de calibración clave (137) de las imágenes de calibración (114) de la serie tomada en el paso a); d) tomar al menos una imagen de análisis de al menos parte de un campo de prueba (122) de una tira reactiva óptica (124), campo de prueba (122) que tiene el fluido corporal aplicado al mismo; ye) determinar la concentración del analito en el fluido corporal a partir de la imagen de análisis del campo de prueba (122) teniendo en cuenta la función de mapeo de tonos probable (120) del dispositivo móvil (110).