Patents by Inventor Wolfgang Petrich

Wolfgang Petrich 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).

  • Patent number: 11224365
    Abstract: Disclosed is a fully implantable sensor for detecting at least one analyte in a sample of body fluid. The sensor has a measurement chamber plate that receives the sample of bodily fluid and a quantum cascade laser illumination source that generates an illumination light beam in the spectral range and transmits it to the measurement chamber plate. The illumination light beam at least partially illuminates the measurement chamber plate and the measurement chamber plate generates a reflection light beam in response to the illumination by the illumination light beam. The reflection light beam at least partially illuminates the sample of body fluid within the measurement chamber plate. An optical detector detects at least one property of the reflection light beam and generates a sensor signal dependent on the presence of the analyte. A controlled evaluates the sensor signal. A method using an inventive fully implantable sensor is also disclosed.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: January 18, 2022
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Frank Deck, Hans List, Wolfgang Petrich, Niels Kroeger-Lui, Katharina Haase
  • Patent number: 11060978
    Abstract: Methods are provided for deriving/determining an analyte concentration that include recording measurement values during a time development indicating a progress of a detection reaction of at least one test substance and a body fluid sample and providing at least one measurement curve F(t) containing the measurement values, where the detection reaction is known to be influenced by the analyte concentration and at least one disturbance variable Y. The methods also include deriving an end value of the measurement curve to form a first variable x1, and deriving at least one fit parameter by taking into account an exponential characteristic of the measurement curve, and where the fit parameter forms at least one second variable x2. The methods further include deriving/determining the analyte concentration by using at least one multivariate evaluation algorithm adapted to combine x1 and x2. Also provided are computer programs and devices that incorporate the same.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: July 13, 2021
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Christian Ringemann, Markus Plum, Wolfgang Petrich, Timo Ottenstein
  • Publication number: 20210118570
    Abstract: The disclosure relates to a method for screening a subject for the risk of chronic kidney disease (CKD), comprising: receiving marker data indicative for a plurality of marker parameters for a subject, such plurality of marker parameters indicating, for the subject for a measurement period, an age value, a sample level of creatinine, and a sample level of albumin; and determining a risk factor indicative of the risk of suffering CKD for the subject from the plurality of marker parameters, wherein the determining comprises: weighting the age value higher than the sample level of albumin, and weighting the sample level of creatinine higher than the sample level of albumin. Further, a computer-implemented method for screening a subject and a method for screening a subject for the risk of chronic kidney disease (CKD) are provided.
    Type: Application
    Filed: March 22, 2019
    Publication date: April 22, 2021
    Applicant: Roche Diabetes Care, Inc.
    Inventors: Wolfgang Petrich, Tony Huschto, Bernd Schneidinger, Stefan Ravizza, Alexander Buesser
  • Patent number: 10984892
    Abstract: Methods are provided for detecting an analyte concentration/presence in a body fluid sample that include providing a set of at least two different evaluation rules, each evaluation rule adapted to derive a set characteristic values from an optical measurement curve, where at least one first characteristic value is derived from at least one first evaluation rule and at least one second characteristic value is derived from at least one second evaluation rule. The methods also include performing at least one multivariate analysis of the at least one first and second characteristic values by using at least one predetermined multivariate evaluation algorithm to derive at least one estimate value for at least one target variable Y of the state variables. The methods also include determining at least one analyte concentration by using the at least one target variable Y. Also provided are computer programs and devices that incorporate the same.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: April 20, 2021
    Inventors: Simon Aigner, Gabriele Chemnitius, Carina Horn, Bernd Limburg, Timo Ottenstein, Wolfgang Petrich, Markus Plum, Christian Ringemann, Markus Serr
  • Patent number: 10724943
    Abstract: A device is proposed for detecting at least one analyte in a bodily fluid. The device comprises at least one test element with at least one two-dimensional evaluation region. The device furthermore comprises at least one spatially resolving optical detector having a plurality of pixels. The detector is designed to image at least part of the test element onto an image region. In the process, at least part of the evaluation region is imaged onto an evaluation image region. The detector is matched to the test element such that a predetermined minimum number of pixels is provided for each dimension within the evaluation image region. The pixels are arranged in a two-dimensional matrix arrangement. The matrix arrangement has pixel rows and pixel columns, wherein the pixel rows are arranged substantially parallel to a longitudinal direction of the evaluation region and/or of the evaluation image region.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: July 28, 2020
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Wolfgang Petrich, Frank Weidner
  • Publication number: 20200158655
    Abstract: Methods are provided for deriving/determining an analyte concentration that include recording measurement values during a time development indicating a progress of a detection reaction of at least one test substance and a body fluid sample and providing at least one measurement curve F(t) containing the measurement values, where the detection reaction is known to be influenced by the analyte concentration and at least one disturbance variable Y. The methods also include deriving an end value of the measurement curve to form a first variable x1, and deriving at least one fit parameter by taking into account an exponential characteristic of the measurement curve, and where the fit parameter forms at least one second variable x2. The methods further include deriving/determining the analyte concentration by using at least one multivariate evaluation algorithm adapted to combine x1 and x2. Also provided are computer programs and devices that incorporate the same.
    Type: Application
    Filed: December 20, 2019
    Publication date: May 21, 2020
    Inventors: Christian Ringemann, Markus Plum, Wolfgang Petrich, Timo Ottenstein
  • Publication number: 20200054258
    Abstract: A medical system, an analyte measurement device, a medication device and a method for transcutaneously inserting an insertable element into a body tissue are disclosed. The medical system comprises: at least one electronics unit having at least one electronics component; at least one adhesive surface for attachment of the electronics unit to a skin site of a host; at least one first subsystem configured for being at least partially inserted into the host; at least one second subsystem, wherein the second subsystem comprises at least one secondary sensor, wherein the first subsystem and the second subsystem are operably connectable to the electronics unit, wherein the second subsystem is physically attachable to the medical system.
    Type: Application
    Filed: October 10, 2019
    Publication date: February 20, 2020
    Applicant: Roche Diabetes Care, Inc.
    Inventors: Emily Elise Gill, Wolfgang Petrich, Valerie Winckler-Desprez, Uwe Hensel
  • Publication number: 20190369017
    Abstract: A method of evaluating the quality state (such as a fixation status) of a cellular sample is provided. A MIR spectrum (220) of the sample is obtained, and a classification (211) or quantification (231) algorithm is applied to the MIR spectrum to identify features (221) indicative of the quality state and/or to classify the sample. The quality state may then be used to determine whether the sample is appropriate for an analytical method and/or whether remedial processing (such as further fixation) is appropriate.
    Type: Application
    Filed: April 27, 2018
    Publication date: December 5, 2019
    Inventors: Daniel Bauer, David Chafin, Niels Kroeger-Lui, Michael Otter, Wolfgang Petrich
  • Publication number: 20190336050
    Abstract: Disclosed is a fully implantable sensor for detecting at least one analyte in a sample of body fluid. The sensor has a measurement chamber plate that receives the sample of bodily fluid and a quantum cascade laser illumination source that generates an illumination light beam in the spectral range and transmits it to the measurement chamber plate. The illumination light beam at least partially illuminates the measurement chamber plate and the measurement chamber plate generates a reflection light beam in response to the illumination by the illumination light beam. The reflection light beam at least partially illuminates the sample of body fluid within the measurement chamber plate. An optical detector detects at least one property of the reflection light beam and generates a sensor signal dependent on the presence of the analyte. A controlled evaluates the sensor signal. A method using an inventive fully implantable sensor is also disclosed.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Inventors: Frank Deck, Hans List, Wolfgang Petrich, Niels Kroeger-Lui, Katharina Haase
  • Publication number: 20190325992
    Abstract: Methods are provided for detecting an analyte concentration/presence in a body fluid sample that include providing a set of at least two different evaluation rules, each evaluation rule adapted to derive a set characteristic values from an optical measurement curve, where at least one first characteristic value is derived from at least one first evaluation rule and at least one second characteristic value is derived from at least one second evaluation rule. The methods also include performing at least one multivariate analysis of the at least one first and second characteristic values by using at least one predetermined multivariate evaluation algorithm to derive at least one estimate value for at least one target variable Y of the state variables. The methods also include determining at least one analyte concentration by using the at least one target variable Y. Also provided are computer programs and devices that incorporate the same.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Inventors: Simon Aigner, Gabriele Chemnitius, Carina Horn, Bernd Limburg, Timo Ottenstein, Wolfgang Petrich, Markus Plum, Christian Ringemann, Markus Serr
  • Publication number: 20180313746
    Abstract: A device is proposed for detecting at least one analyte in a bodily fluid. The device comprises at least one test element with at least one two-dimensional evaluation region. The device furthermore comprises at least one spatially resolving optical detector having a plurality of pixels. The detector is designed to image at least part of the test element onto an image region. In the process, at least part of the evaluation region is imaged onto an evaluation image region. The detector is matched to the test element such that a predetermined minimum number of pixels is provided for each dimension within the evaluation image region. The pixels are arranged in a two-dimensional matrix arrangement. The matrix arrangement has pixel rows and pixel columns, wherein the pixel rows are arranged substantially parallel to a longitudinal direction of the evaluation region and/or of the evaluation image region.
    Type: Application
    Filed: July 5, 2018
    Publication date: November 1, 2018
    Inventors: Wolfgang Petrich, Frank Weidner
  • Patent number: 10031067
    Abstract: A device is proposed for detecting at least one analyte in a bodily fluid. The device comprises at least one test element with at least one two-dimensional evaluation region. The device furthermore comprises at least one spatially resolving optical detector having a plurality of pixels. The detector is designed to image at least part of the test element onto an image region. In the process, at least part of the evaluation region is imaged onto an evaluation image region. The detector is matched to the test element such that a predetermined minimum number of pixels is provided for each dimension within the evaluation image region. The pixels are arranged in a two-dimensional matrix arrangement. The matrix arrangement has pixel rows and pixel columns, wherein the pixel rows are arranged substantially parallel to a longitudinal direction of the evaluation region and/or of the evaluation image region.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: July 24, 2018
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Wolfgang Petrich, Frank Weidner
  • Patent number: 9796746
    Abstract: The invention also relates to compounds, which are useful for intra-molecular fluorescence resonance energy transfer (FRET), comprising the oxidized form of a carbaNADH-based first fluorophore and a second fluorophore that is excitable at a wave-length of between 445 to 540 nm and that has an emission maximum of greater than 560 nm, and methods, kits and compositions related thereto.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: October 24, 2017
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Dieter Heindl, Joachim Hoenes, Carina Horn, Thomas Meier, Wolfgang Petrich
  • Patent number: 9611504
    Abstract: An analytical apparatus is disclosed for detecting at least one analyte in a sample, where in an analyte measurement at least an electrical or optical property changeable by presence of the analyte at least one test chemical of a test element is recorded, and where the analytical apparatus also can perform at least one quality measurement on the at least one test chemical such as an intrinsic luminescence, which is recorded and from the intrinsic luminescence a conclusion is drawn on a quality of the test chemical and thus the test element. Methods also are disclosed for detecting at least one analyte in a sample that include a quality measurement of the at least one test chemical of the test strip.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: April 4, 2017
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Wolfgang Petrich, Carina Horn, Nelli Steinke, Christian Ringemann, Alexa Freifrau von Ketteler
  • Publication number: 20170073728
    Abstract: Analytical apparatuses are disclosed for detecting at least one analyte in a sample, where in an analyte measurement at least an electrical or optical property changeable by presence of the analyte at least one test chemical of a test element is recorded, and where the analytical apparatus also can perform at least one quality measurement on the at least one test chemical such as an intrinsic luminescence, which is recorded and from the intrinsic luminescence a conclusion is drawn on a quality of the test chemical and thus the test element. Methods also are disclosed for detecting at least one analyte in a sample that include a quality measurement of the at least one test chemical of the test strip.
    Type: Application
    Filed: November 22, 2016
    Publication date: March 16, 2017
    Inventors: Wolfgang Petrich, Carina Horn, Nelli Steinke, Christian Ringemann, Alexa Freifrau von Ketteler
  • Patent number: 9326718
    Abstract: A system is proposed for detection of at least one analyte in a body fluid, in particular for detection of blood glucose. The system is designed to generate a sample of the body fluid and to transfer at least some of the sample to at least one test element, in particular a test panel. The system is designed such that a time period between the generation of the sample and the application to the test element is less than 1 second, preferably less than 500 ms.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: May 3, 2016
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Wolfgang Petrich, Christian Vrancic, Daniel Wong, Paul Patel
  • Patent number: 9329128
    Abstract: The invention relates to a test element for detecting at least one analyte in a sample, in particular for detecting at least one metabolite in a bodily fluid. The test element comprises at least one test field with a test field surface. The test field comprises at least one detection reagent that is adapted to undergo a detectable reaction in the presence of the analyte. The test element further comprises at least one distribution element that has at least one distribution surface facing the test field surface. Between the distribution surface and the test field surface is at least one capillary gap, wherein the capillary gap is adapted to allow a layer of the sample with a layer thickness of no more than 50 ?m to form within the capillary gap.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: May 3, 2016
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Wolfgang Petrich, Luis David Bedon-Gomez
  • Publication number: 20160090398
    Abstract: The invention also relates to compounds, which are useful for intra-molecular fluorescence resonance energy transfer (FRET), comprising the oxidized form of a carbaNADH-based first fluorophore and a second fluorophore that is excitable at a wave-length of between 445 to 540 nm and that has an emission maximum of greater than 560 nm, and methods, kits and compositions related thereto.
    Type: Application
    Filed: December 4, 2015
    Publication date: March 31, 2016
    Inventors: Dieter Heindl, Joachim Hoenes, Carina Horn, Thomas Meier, Wolfgang Petrich
  • Publication number: 20160076993
    Abstract: A device is proposed for detecting at least one analyte in a bodily fluid. The device comprises at least one test element with at least one two-dimensional evaluation region. The device furthermore comprises at least one spatially resolving optical detector having a plurality of pixels. The detector is designed to image at least part of the test element onto an image region. In the process, at least part of the evaluation region is imaged onto an evaluation image region. The detector is matched to the test element such that a predetermined minimum number of pixels is provided for each dimension within the evaluation image region. The pixels are arranged in a two-dimensional matrix arrangement. The matrix arrangement has pixel rows and pixel columns, wherein the pixel rows are arranged substantially parallel to a longitudinal direction of the evaluation region and/or of the evaluation image region.
    Type: Application
    Filed: November 25, 2015
    Publication date: March 17, 2016
    Inventors: Wolfgang Petrich, Frank Weidner
  • Publication number: 20160011120
    Abstract: Methods are provided for deriving/determining an analyte concentration that include recording measurement values during a time development indicating a progress of a detection reaction of at least one test substance and a body fluid sample and providing at least one measurement curve F(t) containing the measurement values, where the detection reaction is known to be influenced by the analyte concentration and at least one disturbance variable Y. The methods also include deriving an end value of the measurement curve to form a first variable x1, and deriving at least one fit parameter by taking into account an exponential characteristic of the measurement curve, and where the fit parameter forms at least one second variable x2. The methods further include deriving/determining the analyte concentration by using at least one multivariate evaluation algorithm adapted to combine x1 and x2. Also provided are computer programs and devices that incorporate the same.
    Type: Application
    Filed: June 19, 2015
    Publication date: January 14, 2016
    Applicant: Roche Diabetes Care, Inc.
    Inventors: Christian Ringemann, Markus Plum, Wolfgang Petrich, Timo Ottenstein