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: 9228935Abstract: 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: GrantFiled: January 18, 2013Date of Patent: January 5, 2016Assignee: Roche Diabetes Care, Inc.Inventors: Wolfgang Petrich, Frank Weidner
-
Publication number: 20150286778Abstract: 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: ApplicationFiled: June 19, 2015Publication date: October 8, 2015Applicant: 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: 9128066Abstract: 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: GrantFiled: July 15, 2011Date of Patent: September 8, 2015Assignee: Roche Diabetes Care, Inc.Inventors: Volker Zimmer, Wolfgang Petrich
-
Publication number: 20140242622Abstract: 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: ApplicationFiled: May 14, 2014Publication date: August 28, 2014Applicant: Roche Diagnostics Operations, Inc.Inventors: Wolfgang Petrich, Carina Horn, Nelli Steinke, Christian Ringemann, Alexa von Ketteler
-
Publication number: 20140045203Abstract: 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: ApplicationFiled: October 15, 2013Publication date: February 13, 2014Applicant: Roche Diagnostics Operations, Inc.Inventors: Wolfgang PETRICH, Luis David BEDON-GOMEZ
-
Patent number: 8574514Abstract: 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: GrantFiled: May 6, 2011Date of Patent: November 5, 2013Assignee: Roche Diagnostics Operations, Inc.Inventors: Wolfgang Petrich, Luis David Bedon-Gomez
-
Patent number: 8540141Abstract: 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: GrantFiled: October 23, 2012Date of Patent: September 24, 2013Assignee: Roche Diagnostics Operations, Inc.Inventors: Wolfgang Petrich, Stefan Kalveram, Markus Serr
-
Patent number: 8535609Abstract: 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: GrantFiled: June 27, 2007Date of Patent: September 17, 2013Assignee: Roche Diagnostics GmbHInventors: Wolfgang Petrich, Wilfried Schmid, Gerrit Kocherscheidt, Jean-Michel Asfour
-
Patent number: 8501113Abstract: 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: GrantFiled: November 9, 2010Date of Patent: August 6, 2013Assignee: Roche Diagnostics Operations, Inc.Inventors: Wolfgang Petrich, Claudia Gaessler-Dietsche, Carina Horn, Kai Hebestreit, Jean-Michel Asfour, Klemens Bardelang, Gerrit Kocherscheidt
-
Patent number: 8338118Abstract: 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: GrantFiled: February 9, 2009Date of Patent: December 25, 2012Assignee: Roche Diagnostics Operations, Inc.Inventors: Wolfgang Petrich, Claudia Gaessler-Dietsche, Carina Horn, Kari Hebestreit, Jean-Michel Asfour, Klemens Bardelang, Gerrit Kocherscheidt
-
Patent number: 8297496Abstract: 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: GrantFiled: February 4, 2011Date of Patent: October 30, 2012Assignee: Roche Diagnostics Operations, Inc.Inventors: Wolfgang Petrich, Stefan Kalveram, Markus Serr
-
Patent number: 8293539Abstract: 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: GrantFiled: February 4, 2011Date of Patent: October 23, 2012Assignee: Roche Diagnostics Operations, Inc.Inventors: Wolfgang Petrich, Stefan Kalveram, Markus Serr
-
Patent number: 8173439Abstract: 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: GrantFiled: June 19, 2009Date of Patent: May 8, 2012Assignee: Roche Diagnostics Operations, Inc.Inventors: Wolfgang Petrich, Joachim Hoenes, Uwe Kraemer
-
Publication number: 20120064615Abstract: 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: ApplicationFiled: May 6, 2011Publication date: March 15, 2012Applicant: Roche Diagnostics Operations, Inc.Inventors: Wolfgang Petrich, Luis David Bedon-Gomez
-
Publication number: 20120045842Abstract: 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: ApplicationFiled: February 4, 2011Publication date: February 23, 2012Inventors: Wolfgang Petrich, Stefan Kalveram, Markus Serr
-
Publication number: 20120043376Abstract: 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: ApplicationFiled: February 4, 2011Publication date: February 23, 2012Inventors: Wolfgang Petrich, Stefan Kalveram, Markus Serr
-
Patent number: 8119069Abstract: 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: GrantFiled: October 7, 2010Date of Patent: February 21, 2012Assignee: Roche Diagnostics GmbHInventors: Wolfgang Petrich, Wilfried Schmid, Gerrit Kocherscheidt, Jean-Michel Asfour
-
Publication number: 20120040386Abstract: 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: ApplicationFiled: May 3, 2011Publication date: February 16, 2012Inventors: Wolfgang-Reinhold Knappe, Bernd Hiller, Ursula Lehr, Volker Zimmer, Wolfgang Petrich, Luis David Bedon-Gomez
-
Publication number: 20120006105Abstract: 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: ApplicationFiled: July 15, 2011Publication date: January 12, 2012Applicant: ROCHE DIAGNOSTICS OPERATIONS, INC.Inventors: Volker ZIMMER, Wolfgang PETRICH
-
Patent number: RE44788Abstract: 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: GrantFiled: July 14, 2009Date of Patent: March 4, 2014Assignee: Roche Diagnostics GmbHInventors: Wolfgang Petrich, Wilfried Schmid, Gerrit Kocherscheidt, Jean-Michel Asfour