Patents by Inventor Fredrik Hailer

Fredrik Hailer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220122254
    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, angular orientation of the mobile device relative to the test element is determined by using sensor data of a sensor integrated into the mobile device. The angular orientation of the mobile device relative to the test element is subjected to a validity test. Taking into account the result of the validity test, an image of at least part of a test strip is captured and concentration of analyte in a body fluid sample applied to the test strip can be determined.
    Type: Application
    Filed: December 31, 2021
    Publication date: April 21, 2022
    Inventors: Bernd Limburg, Max Berg, Fredrik Hailer
  • Publication number: 20220104736
    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.
    Type: Application
    Filed: December 16, 2021
    Publication date: April 7, 2022
    Inventors: Max Berg, Fredrik Hailer, Bernd Limburg, Daria Skuridina, Volker Tuerck, Momme Winkelnkemper
  • Patent number: 11280742
    Abstract: The invention concerns an analyte measuring system comprising a test tape (22) having a plurality of functional elements (20) including a test field (46), a further comprising a meter (12) having a tape drive (24) operable to advance the test tape (22), a light source (30) adapted to illuminate at least one measuring spot at a measuring position, and a measuring engine (32) to receive optical signals from the at least one measuring spot for detection of the analyte in the body fluid. For tape positioning, it is proposed that the measuring engine (32) comprises a signal processor (34) operable to determine if a test field (46) is in the measuring position, said determination comprising an identification of a pre-determined distance between at least two functional elements (20) in the optical signals obtained while advancing the test tape (22).
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: March 22, 2022
    Assignee: ROCHE DIABETES CARE, INC.
    Inventors: Max Berg, Fredrik Hailer
  • Publication number: 20220003683
    Abstract: An optical test strip (118) for measuring an analyte concentration in a sample of bodily fluid is disclosed.
    Type: Application
    Filed: October 29, 2019
    Publication date: January 6, 2022
    Applicant: Roche Diabetes Care, Inc.
    Inventors: Bernd Limburg, Max Berg, Daniel Sieffert, Fredrik Hailer, Christian Hoertz
  • Publication number: 20210295515
    Abstract: A method for generating a module configured to determine concentration of an analyte in a sample of a body fluid is disclosed. The method includes providing a first set of measurement data derived from images of one or more test strips indicating a color transformation in response to a body fluid containing an analyte. The images can be recorded by multiple devices with differing cameras, software and/or hardware device configurations for image recording and image data processing. A neural network model can be generated in a machine learning process applying an artificial neural network and a module configured to determine concentration of an analyte in a second sample of a body fluid can be generated. Further, the present disclosure includes a system for generating the module as well as a method and a system for determining concentration of an analyte in a sample of a bodily fluid.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 23, 2021
    Inventors: Max Berg, Fredrik Hailer, Bernd Limburg, Daniel Sieffert, Herbert Wieder, Peter Seelig, Benhur Aysin, Siva Chittajallu
  • Publication number: 20210285888
    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.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 16, 2021
    Inventors: Bernd Limburg, Max Berg, Fredrik Hailer, Volker Tuerck, Daria Skuridina, Irina Ostapenko
  • Publication number: 20210258565
    Abstract: A method of evaluating the suitability of a mobile device for performing an analytical measurement based on a color formation reaction. The capability of the mobile device to have relevant settings of the mobile device controlled by software running on the mobile device is evaluated. The relevant settings pertain to image raw data processing steps to be carried out by the mobile device and may include a color space transformation and a tone mapping transformation. When the evaluation indicates that the mobile device is capable of having the relevant settings controlled by the software, control information indicating that the mobile device is suitable for performing the analytical measurement is provided. When the evaluation indicates that the mobile device is not capable of having the relevant settings controlled by the software, control information indicating that the mobile device is unsuitable for performing the analytical measurement is provided.
    Type: Application
    Filed: May 5, 2021
    Publication date: August 19, 2021
    Inventors: Bernd Limburg, Herbert Wieder, Max Berg, Simon Wetzel, Daniel Sieffert, Fredrik Hailer, Christian Melchinger, Zied Guermazi
  • Publication number: 20210255111
    Abstract: A method of performing an analytical measurement based on a color formation reaction in an optical test strip using a mobile device having a camera. In the inventive method, an optical test strip having a test field is provided. A first image of at least part of the test field is captured using the camera with an image acquisition setting of the camera, and the image acquisition setting is locked. A sample of body fluid is applied to the test field and then there is a step of waiting a predetermined minimum amount of time. Then, while the image acquisition setting remains locked, a second image of at least part of the test field is captured using the camera with the same image acquisition setting of the camera used to capture the first image. An analytical measurement result value is then determined by using the first and the second images.
    Type: Application
    Filed: May 5, 2021
    Publication date: August 19, 2021
    Inventors: Bernd Limburg, Max Berg, Fredrik Hailer
  • Publication number: 20210088506
    Abstract: A method of evaluating suitability of lighting conditions for detecting an analyte in a sample using a mobile device camera. A test strip is provided for detecting the analyte. A first image of the test strip is captured while an illumination source of the mobile device is turned off and a second image of the test strip is captured while the illumination source is turned on. A sample is applied to the test strip and the first and second images are compared to thereby determine the difference in lighting conditions between the first image and the second image. The comparison is used to derive information on suitability of the lighting conditions for analyte detection. The lighting conditions are indicated as suitable when a predetermined threshold amount of light intensity used for illumination of the test strip originates from the illumination source.
    Type: Application
    Filed: December 10, 2020
    Publication date: March 25, 2021
    Inventors: Max Berg, Fredrik Hailer, Timo Klein, Bernd Limburg, Christian Melchinger, Volker Tuerck
  • Publication number: 20200386672
    Abstract: A calibration method for calibrating a camera for detecting an analyte in a sample is disclosed. A plurality of different color coordinate systems and a set of test samples are provided. The test samples are applied to test elements that have test fields for producing an optically detectable reaction. Images of the colored test fields are acquired using the camera and color coordinates for the images are generated. The color coordinates that are generated are transformed into a set of measured concentrations by using a set of coding functions. The set of measured concentrations is compared with the known concentrations of the test samples and a best match color coordinate system of the plurality of color coordinate systems is determined. A best match coding function of the plurality of coding functions is also determined.
    Type: Application
    Filed: August 24, 2020
    Publication date: December 10, 2020
    Inventors: Bernd Limburg, Max Berg, Fredrik Hailer
  • Publication number: 20200309710
    Abstract: The invention concerns an analyte measuring system comprising a test tape (22) having a plurality of functional elements (20) including a test field (46), a further comprising a meter (12) having a tape drive (24) operable to advance the test tape (22), a light source (30) adapted to illuminate at least one measuring spot at a measuring position, and a measuring engine (32) to receive optical signals from the at least one measuring spot for detection of the analyte in the body fluid. For tape positioning, it is proposed that the measuring engine (32) comprises a signal processor (34) operable to determine if a test field (46) is in the measuring position, said determination comprising an identification of a pre-determined distance between at least two functional elements (20) in the optical signals obtained while advancing the test tape (22).
    Type: Application
    Filed: October 25, 2018
    Publication date: October 1, 2020
    Applicant: Roche Diabetes Care, Inc.
    Inventors: Max Berg, Fredrik Hailer
  • Patent number: 10473523
    Abstract: An apparatus for illuminating the surface of a material, comprising an illuminating device for illuminating the surface of the material with a calibrating light, a recording device for recording a measuring light, emitted by the surface of the material in response to the calibrating light, and a processor device for recording the spectral characteristic of the measuring light that characterizes a diffuse spectral reflectance of the surface of the material, wherein the illuminating device is configured to generate an illuminating light for illuminating the surface of the material that has a spectral characteristic that corresponds to the spectral characteristic of the measuring light.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: November 12, 2019
    Assignee: PHOENIX CONTACT GMBH & CO KG
    Inventors: Fred Grunert, Fredrik Hailer, Thomas Nimz
  • Publication number: 20150285681
    Abstract: An apparatus for illuminating the surface of a material, comprising an illuminating device for illuminating the surface of the material with a calibrating light, a recording device for recording a measuring light, emitted by the surface of the material in response to the calibrating light, and a processor device for recording the spectral characteristic of the measuring light that characterizes a diffuse spectral reflectance of the surface of the material, wherein the illuminating device is configured to generate an illuminating light for illuminating the surface of the material that has a spectral characteristic that corresponds to the spectral characteristic of the measuring light.
    Type: Application
    Filed: October 23, 2013
    Publication date: October 8, 2015
    Inventors: Fred Grunert, Fredrik Hailer, Thomas Nimz