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：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：SG11202105428WA

公开(公告)日：2021-06-29

申请号：SG11202105428W

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 analyte concentration in a body fluid with a mobile device having a camera. A user is prompted to apply body fluid to an optical test strip and then waits a predetermined minimum waiting time. The camera captures an image of part of the test field having the body fluid applied thereto. Analyte concentration is determined based on the image captured. The determination includes estimating a point in time of sample application to the test field by taking into account time-dependent information derived from the image captured using a first color channel of a color space. The determination also estimates the concentration of the analyte by taking into account concentration-dependent information derived from the image using a second color channel of the color space.

公开(公告)号：CA3119666A1

公开(公告)日：2020-06-04

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.