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: 9228935
    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: January 18, 2013
    Date of Patent: January 5, 2016
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Wolfgang Petrich, Frank Weidner
  • Publication number: 20150286778
    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: June 19, 2015
    Publication date: October 8, 2015
    Applicant: Roche Diabetes Care, Inc.
    Inventors: Simon Aigner, Gabriele Chemnitius, Carina Horn, Bernd Limburg, Timo Ottenstein, Wolfgang Petrich, Markus Plum, Christian Ringemann, Markus Serr
  • Patent number: 9128066
    Abstract: The invention concerns a system for analyzing a body fluid comprising a collecting element which receives the body fluid in a reservoir, a test element designed to detect an analyte in the body fluid, a transfer device for making a fluidic connection between the collecting element and the test element, and a detection unit which detects an analyte-specific measurement signal on the test element during a measurement interval. According to the invention it is proposed that the transfer device always brings the test element into contact with the body fluid located in the reservoir during the measurement interval and that the transfer device is configured to physically separate the test element and the collecting element from one another after the measurement interval.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: September 8, 2015
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Volker Zimmer, Wolfgang Petrich
  • Publication number: 20140242622
    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: Application
    Filed: May 14, 2014
    Publication date: August 28, 2014
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang Petrich, Carina Horn, Nelli Steinke, Christian Ringemann, Alexa von Ketteler
  • Publication number: 20140045203
    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: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang PETRICH, Luis David BEDON-GOMEZ
  • Patent number: 8574514
    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: May 6, 2011
    Date of Patent: November 5, 2013
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang Petrich, Luis David Bedon-Gomez
  • Patent number: 8540141
    Abstract: A coding for a medical disposable item is proposed comprising at least one information component in encoded form. Associated encoding methods and devices, and associated decoding methods and devices, are also proposed. The coding generally comprises an optical information component comprising one or more fields filled with a gray-scale value up to a certain degree of filling. Each gray-scale value and degree of filling are associated as a value pair determined as part of a code generated to correlate to an information component desired to be applied to and conveyed from a medical disposable item to an associated device that utilizes such items.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: September 24, 2013
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang Petrich, Stefan Kalveram, Markus Serr
  • Patent number: 8535609
    Abstract: A test element analysis system for the analytical investigation of a liquid sample. The test element comprising a carrier film having a first light guide layer having a flat side, a second light guide layer positioned adjacent to the first light guide layer and opposite of the flat side, and a coupling out zone which is part of the flat side of the first light guide layer. A test field is secured to the flat side and is constructed and arranged to receive a liquid sample. The test field comprises a reagent system having a soluble reagent capable of causing an optically measurable change upon reaction with an analyte of the liquid sample, and a detection zone in optical contact with the coupling out zone.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: September 17, 2013
    Assignee: Roche Diagnostics GmbH
    Inventors: Wolfgang Petrich, Wilfried Schmid, Gerrit Kocherscheidt, Jean-Michel Asfour
  • Patent number: 8501113
    Abstract: The invention relates to processes and devices for detecting an analyte in a sample by fluorescence measurement of a fluorophore, wherein the detection medium which contains a fluorophore or a precursor of the fluorophore is admixed with an absorber whose absorbance spectrum superimposes the fluorescence excitation range of the fluorophore. The system consisting of the fluorophore and the absorber, which is produced in the detection medium, has an altered effective fluorescence excitation range with an altered fluorescence excitation maximum. Illumination with fluorescence excitation light can take place within the range of this altered excitation maximum. The measured signal obtained from determining fluorescence emission exhibits only low dependence on the wavelength of the excitation light.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: August 6, 2013
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang Petrich, Claudia Gaessler-Dietsche, Carina Horn, Kai Hebestreit, Jean-Michel Asfour, Klemens Bardelang, Gerrit Kocherscheidt
  • Patent number: 8338118
    Abstract: The invention relates to processes and devices for detecting an analyte in a sample by fluorescence measurement of a fluorophore, wherein the detection medium which contains a fluorophore or a precursor of the fluorophore is admixed with an absorber whose absorbance spectrum superimposes the fluorescence excitation range of the fluorophore. The system consisting of the fluorophore and the absorber, which is produced in the detection medium, has an altered effective fluorescence excitation range with an altered fluorescence excitation maximum. Illumination with fluorescence excitation light can take place within the range of this altered excitation maximum. The measured signal obtained from determining fluorescence emission exhibits only low dependence on the wavelength of the excitation light.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: December 25, 2012
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang Petrich, Claudia Gaessler-Dietsche, Carina Horn, Kari Hebestreit, Jean-Michel Asfour, Klemens Bardelang, Gerrit Kocherscheidt
  • Patent number: 8297496
    Abstract: A coding for a medical disposable item is proposed comprising at least one information component in encoded form. Associated encoding methods and devices, and associated decoding methods and devices, are also proposed. The coding generally comprises an optical information component comprising one or more fields filled with a gray-scale value up to a certain degree of filling. Each gray-scale value and degree of filling are associated as a value pair determined as part of a code generated to correlate to an information component desired to be applied to and conveyed from a medical disposable item to an associated device that utilizes such items.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: October 30, 2012
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang Petrich, Stefan Kalveram, Markus Serr
  • Patent number: 8293539
    Abstract: An analysis system for detecting at least one analyte in a sample is proposed, in particular for detecting glucose in a bodily fluid. The analysis system is designed to detect the analyte using at least one test element. The test element has at least one analysis zone for detecting the analyte. The test element includes at least one coding with at least one test element specific item of information and/or at least one position specific item of information. The analysis system includes a detector and furthermore at least one transfer device which is designed to afford the detector the possibility of acquiring the analysis zone in at least a first position and to afford the detector the possibility of acquiring the coding in at least a second position which differs from the first position.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: October 23, 2012
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang Petrich, Stefan Kalveram, Markus Serr
  • Patent number: 8173439
    Abstract: A system is described for determining the concentration of an analyte in a liquid by absorption measurement comprising a test element with a detection area which contains at least one reaction area with reagents for detecting the analyte which cause a change in the absorption behavior upon reaction with the analyte. The detection area contains at least one reference area in which the absorption behavior is substantially not changed when wetted by a sample having the analyte. Furthermore, the system contains a detection unit for the spatially resolved detection of light intensities which are received from the detection area and an evaluation unit for evaluating signals from the detection unit. Further embodiments of the system comprise reaction areas and reference areas arranged alternately in two dimensions.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: May 8, 2012
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang Petrich, Joachim Hoenes, Uwe Kraemer
  • Publication number: 20120064615
    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: Application
    Filed: May 6, 2011
    Publication date: March 15, 2012
    Applicant: Roche Diagnostics Operations, Inc.
    Inventors: Wolfgang Petrich, Luis David Bedon-Gomez
  • Publication number: 20120045842
    Abstract: An analysis system for detecting at least one analyte in a sample is proposed, in particular for detecting glucose in a bodily fluid. The analysis system is designed to detect the analyte using at least one test element. The test element has at least one analysis zone for detecting the analyte. The test element furthermore comprises at least one coding with at least one test element specific item of information and/or at least one position specific item of information. The analysis system comprises a detector and furthermore at least one transfer device which is designed to afford the detector the possibility of acquiring the analysis zone in at least a first position and to afford the detector the possibility of acquiring the coding in at least a second position which differs from the first position.
    Type: Application
    Filed: February 4, 2011
    Publication date: February 23, 2012
    Inventors: Wolfgang Petrich, Stefan Kalveram, Markus Serr
  • Publication number: 20120043376
    Abstract: A coding for a medical disposable item is proposed comprising at least one information component in encoded form. Associated encoding methods and devices, and associated decoding methods and devices, are also proposed. The coding generally comprises an optical information component comprising one or more fields filled with a gray-scale value up to a certain degree of filling. Each gray-scale value and degree of filling are associated as a value pair determined as part of a code generated to correlate to an information component desired to be applied to and conveyed from a medical disposable item to an associated device that utilizes such items.
    Type: Application
    Filed: February 4, 2011
    Publication date: February 23, 2012
    Inventors: Wolfgang Petrich, Stefan Kalveram, Markus Serr
  • Patent number: 8119069
    Abstract: A test element analysis system for the analytical investigation of a liquid sample, comprising a test element including a carrier film having at least one flat side and a test field secured to the flat side and an evaluation instrument including a test element holder for positioning a test element in a measuring position, a measuring device for measuring the optically measurable change in the detection zone, and a housing within the measuring device is positioned. The test element is positioned in the measuring position in such a manner that a first partial section of the test element is located inside the housing and a second partial section is located outside of the housing to be easily accessible.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: February 21, 2012
    Assignee: Roche Diagnostics GmbH
    Inventors: Wolfgang Petrich, Wilfried Schmid, Gerrit Kocherscheidt, Jean-Michel Asfour
  • Publication number: 20120040386
    Abstract: There is proposed a diagnostic test element for detecting an analyte in a sample of a body fluid, more particularly in whole blood. The diagnostic test element comprises at least one test field having at least one detection reagent, wherein the detection reagent is set up to pass through at least one detectable change in the presence of the analyte, more particularly an optical change. The test field has at least one detection layer which comprises the detection reagent and which comprises particles. At least 90% of all particles of the detection layer have an actual particle size of less than 10 micrometers.
    Type: Application
    Filed: May 3, 2011
    Publication date: February 16, 2012
    Inventors: Wolfgang-Reinhold Knappe, Bernd Hiller, Ursula Lehr, Volker Zimmer, Wolfgang Petrich, Luis David Bedon-Gomez
  • Publication number: 20120006105
    Abstract: The invention concerns a system for analyzing a body fluid comprising a collecting element which receives the body fluid in a reservoir, a test element designed to detect an analyte in the body fluid, a transfer device for making a fluidic connection between the collecting element and the test element, and a detection unit which detects an analyte-specific measurement signal on the test element during a measurement interval. According to the invention it is proposed that the transfer device always brings the test element into contact with the body fluid located in the reservoir during the measurement interval and that the transfer device is configured to physically separate the test element and the collecting element from one another after the measurement interval.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 12, 2012
    Applicant: ROCHE DIAGNOSTICS OPERATIONS, INC.
    Inventors: Volker ZIMMER, Wolfgang PETRICH
  • Patent number: RE44788
    Abstract: Test element analysis system for the analytical investigation of a sample, in particular of a body liquid of human beings or animals, comprising test elements (2) with a carrier film (5) and a test field (7) fixed to the flat side (6) of the carrier film (5), the test field (7) containing a reagent system the reaction of which with the sample (21) leads to an optically measurable change in the detection zone (24) which is characteristic for the analysis, and an evaluation instrument with a measuring device for measuring the optically measurable change.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: March 4, 2014
    Assignee: Roche Diagnostics GmbH
    Inventors: Wolfgang Petrich, Wilfried Schmid, Gerrit Kocherscheidt, Jean-Michel Asfour