Patents by Inventor James Iain Rodgers
James Iain Rodgers 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).
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Patent number: 10816499Abstract: An electrochemical test device for determining the concentration of an analyte in a fluid sample, wherein the electrochemical test device has a substrate is provided. The device comprises a micro-voided synthetic polymer.Type: GrantFiled: November 23, 2016Date of Patent: October 27, 2020Assignee: INSIDE BIOMETRICS INTERNATIONAL LIMITEDInventors: Christopher Philip Leach, James Iain Rodgers
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Publication number: 20180372668Abstract: An electrochemical test device for determining the concentration of an analyte in a fluid sample, wherein the electrochemical test device has a substrate is provided. The device comprises a micro-voided synthetic polymer.Type: ApplicationFiled: November 23, 2016Publication date: December 27, 2018Inventors: Christopher Philip LEACH, James Iain RODGERS
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Publication number: 20180299398Abstract: A test device for measuring the amount of analyte in a fluid sample, including a substrate having thereon: a first analyte reagent formulated to react with the analyte to generate a signal indicative of the presence or amount of analyte in the sample, the first analyte reagent having a first time-based response characteristic; and a second analyte reagent formulated to react with the analyte to generate a signal indicative of the presence or amount of analyte in the sample, the second analyte reagent having a second time-based response characteristic.Type: ApplicationFiled: November 5, 2015Publication date: October 18, 2018Applicant: Inside Biometrics LimitedInventors: James Iain Rodgers, Christopher Philip Leach, Marco Fabio Cardosi
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Publication number: 20160187283Abstract: Electrochemical-based analytical test strip with a soluble electrochemically-active coating opposite a bare electrode An electrochemical-based analytical test strip (EBATS) for the determination of an analyte in a bodily fluid sample includes an electrically insulating base layer, a patterned electrically conductive layer disposed on the electrically insulating base layer and including a plurality of electrodes, and an enzymatic reagent layer disposed on a portion of the patterned conductor layer and defining a bare electrode(s) and a plurality of enzymatic reagent covered electrodes from the plurality of electrodes. The EBATS also includes a patterned spacer layer, a top layer having an underside surface (USS), and a soluble electrochemically-active coating (SEAC) disposed on the USS of the top layer. In addition, at least the patterned spacer layer and top layer define a sample-receiving chamber within the EBATS.Type: ApplicationFiled: June 6, 2014Publication date: June 30, 2016Inventors: Alexander COOPER, James Iain RODGERS, Gavin MACFIE
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Patent number: 9354194Abstract: An analyte meter with a test strip port that detects an orientation of a test strip inserted therein. A control circuit of the test meter is configured to apply a first predetermined analyte measurement signal to a test strip electrode in response to detecting a first orientation of the test strip, and a second predetermined analyte measurement signal to the same, or a different, electrode in response to detecting a second orientation of the test strip.Type: GrantFiled: June 19, 2013Date of Patent: May 31, 2016Assignee: Cilag GmbH InternationalInventors: James Iain Rodgers, Lawrence Ritchie, Anna Zvikhachevskaya, Jonathan Nelson, Carlos Morales
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Patent number: 9335291Abstract: Described and illustrated herein are one exemplary method and a measurement system having a meter and a test strip. The test strip has a first working electrode, reference electrode and second working electrode. In this method, acceptable fill data from known first current and known second current are used to predict an estimated second current at proximate the second time period (for a given batch of test strips) during the test sequence. The estimated second current at proximate the second time interval is then compared with a measured actual second current at proximate the second time interval during an actual test to determine if the measured actual second current is substantially equal to or within an acceptable percent deviation from the estimated second current so as to determine sufficient volume of a physiological fluid sample in the test strip.Type: GrantFiled: November 18, 2014Date of Patent: May 10, 2016Assignee: LifeScan Scotland LimitedInventors: James Iain Rodgers, Leanne Mills, Marco F. Cardosi, Christopher Philip Leach, James Moffat
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Publication number: 20150068920Abstract: Described and illustrated herein are one exemplary method and a measurement system having a meter and a test strip. The test strip has a first working electrode, reference electrode and second working electrode. In this method, acceptable fill data from known first current and known second current are used to predict an estimated second current at proximate the second time period (for a given batch of test strips) during the test sequence. The estimated second current at proximate the second time interval is then compared with a measured actual second current at proximate the second time interval during an actual test to determine if the measured actual second current is substantially equal to or within an acceptable percent deviation from the estimated second current so as to determine sufficient volume of a physiological fluid sample in the test strip.Type: ApplicationFiled: November 18, 2014Publication date: March 12, 2015Inventors: James Iain RODGERS, Leanne MILLS, Marco F. CARDOSI, Christopher Philip LEACH, James MOFFAT
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Patent number: 8940141Abstract: An electrochemical-based analytical test strip for the determination of an analyte (e.g., glucose) in a bodily fluid sample (such as a whole blood sample) includes an electrically insulating base layer and a patterned conductor layer (for example, a gold patterned conductor layer) disposed over the electrically-insulating layer. The patterned conductor layer includes at least one electrode with the electrode having electrochemically inert areas and an electrochemically active area(s). Moreover, the electrochemically inert areas and electrochemically active area(s) are of a predetermined size and a predetermined distribution such that electrochemical response of the electrode during use of the electrochemical-based analytical test strip is essentially equivalent to a predetermined electrochemical response.Type: GrantFiled: May 19, 2010Date of Patent: January 27, 2015Assignee: Lifescan Scotland LimitedInventors: Gavin Macfie, Craig Redpath, James Iain Rodgers, Neil Whitehead
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Patent number: 8936713Abstract: Described and illustrated herein are one exemplary method and a measurement system having a meter and a test strip. The test strip has a first working electrode, reference electrode and second working electrode. In this method, acceptable fill data from known first current and known second current are used to predict an estimated second current at proximate the second time period (for a given batch of test strips) during the test sequence. The estimated second current at proximate the second time interval is then compared with a measured actual second current at proximate the second time interval during an actual test to determine if the measured actual second current is substantially equal to or within an acceptable percent deviation from the estimated second current so as to determine sufficient volume of a physiological fluid sample in the test strip.Type: GrantFiled: December 10, 2010Date of Patent: January 20, 2015Assignee: Lifescan Scotland LimitedInventors: James Iain Rodgers, Leanne Mills, Marco Cardosi, Chris Leach, James Moffat
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Patent number: 8932449Abstract: An electrochemical-based analytical test strip for the determination of an analyte (e.g., glucose) in a bodily fluid sample (such as a whole blood sample) includes an electrically insulating base layer and a patterned conductor layer (for example, a gold patterned conductor layer) disposed over the electrically-insulating layer. The patterned conductor layer includes at least one electrode with the electrode having electrochemically inert areas and an electrochemically active area(s). Moreover, the electrochemically inert areas and electrochemically active area(s) are of a predetermined size and a predetermined distribution such that electrochemical response of the electrode during use of the electrochemical-based analytical test strip is essentially equivalent to a predetermined electrochemical response.Type: GrantFiled: July 20, 2012Date of Patent: January 13, 2015Assignee: Lifescan Scotland LimitedInventors: Gavin Macfie, Craig Redpath, James Iain Rodgers, Neil Whitehead
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Publication number: 20140374278Abstract: An analyte meter with a test strip port that detects an orientation of a test strip inserted therein. A control circuit of the test meter is configured to apply a first predetermined analyte measurement signal to a test strip electrode in response to detecting a first orientation of the test strip, and a second predetermined analyte measurement signal to the same, or a different, electrode in response to detecting a second orientation of the test strip.Type: ApplicationFiled: June 19, 2013Publication date: December 25, 2014Inventors: James Iain RODGERS, Lawrence RITCHIE, Anna ZVIKHACHEVSKAYA, Jonathan NELSON, Carlos MORALES
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Publication number: 20110284393Abstract: An electrochemical-based analytical test strip for the determination of an analyte (e.g., glucose) in a bodily fluid sample (such as a whole blood sample) includes an electrically insulating base layer and a patterned conductor layer (for example, a gold patterned conductor layer) disposed over the electrically-insulating layer. The patterned conductor layer includes at least one electrode with the electrode having electrochemically inert areas and an electrochemically active area(s). Moreover, the electrochemically inert areas and electrochemically active area(s) are of a predetermined size and a predetermined distribution such that electrochemical response of the electrode during use of the electrochemical-based analytical test strip is essentially equivalent to a predetermined electrochemical response.Type: ApplicationFiled: May 19, 2010Publication date: November 24, 2011Applicant: LifeScan Scotland LimitedInventors: Gavin MACFIE, Craig Redpath, James Iain Rodgers, Neil Whitehead
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Publication number: 20110144915Abstract: Described and illustrated herein are one exemplary method and a measurement system having a meter and a test strip. The test strip has a first working electrode, reference electrode and second working electrode. In this method, acceptable fill data from known first current and known second current are used to predict an estimated second current at proximate the second time period (for a given batch of test strips) during the test sequence. The estimated second current at proximate the second time interval is then compared with a measured actual second current at proximate the second time interval during an actual test to determine if the measured actual second current is substantially equal to or within an acceptable percent deviation from the estimated second current so as to determine sufficient volume of a physiological fluid sample in the test strip.Type: ApplicationFiled: December 10, 2010Publication date: June 16, 2011Applicant: LifeScan Scotland Ltd.Inventors: James Iain RODGERS, Leanne MILLS, Marco CARDOSI, Chris LEACH, James MOFFAT
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Patent number: 7588670Abstract: An enzymatic electrochemical-based sensor includes a substrate and a conductive layer formed from a dried water-miscible conductive ink. The water-miscible conductive ink used to form the conductive layer includes a conductive material, an enzyme, a mediator, and a binding agent and is formulated such that the water-miscible conductive ink is a water-miscible aqueous-based dispersion and the binding agent became operatively water-insoluble upon drying.Type: GrantFiled: April 28, 2005Date of Patent: September 15, 2009Assignee: LifeScan Scotland LimitedInventors: James Iain Rodgers, Zuifang Liu, Alan Watson McNeilage, Margaret MacLennan, James Moffat, Geoffrey Lillie, Michael MacDonald
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Patent number: 7572356Abstract: An electrochemical-based sensor includes an electrode with at least one electrode surface, a film disposed on the electrode surface, and a dialysis membrane disposed on the film. The film includes a redox enzyme and a hydrophilic redox polymer (i.e., a polymer with an attached redox mediator(s)). In addition, the dialysis membrane serves to entrap the redox polymer and redox enzyme in the vicinity of the electrode. Such entrapment is accomplished by employing a redox enzyme and a hydrophilic redox polymer of a sufficiently high molecular weight that they do not pass through the dialysis membrane.Type: GrantFiled: August 31, 2004Date of Patent: August 11, 2009Assignee: Lifescan Scotland LimitedInventors: James Iain Rodgers, Zuifang Liu, Geoffrey Lillie
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Patent number: 7465380Abstract: A water-miscible conductive ink for use in enzymatic electrochemical-based sensors includes a conductive material, an enzyme, a mediator and a binding agent. The conductive material, enzyme, mediator, and binding agent are formulated as a water-miscible aqueous-based dispersion wherein the binding agent becomes operatively water-insoluble upon drying.Type: GrantFiled: April 28, 2005Date of Patent: December 16, 2008Assignee: Lifescan Scotland, Ltd.Inventors: James Iain Rodgers, Zuifang Liu, Alan Watson McNeilage, Margaret MacLennan, James Moffat, Geoffrey Lillie, Michael MacDonald
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Patent number: 7402616Abstract: A fusible conductive ink for use in manufacturing microfluidic analytical systems includes micronised powder containing platinum and carbon, poly(bisphenol A-co-epichlorohydrin)-glycidyl end capped polymer, and a solvent. In addition, the ratio of micronised powder to poly(bisphenol A-co-epichlorohydrin)-glycidyl end capped polymer is in the range of 3:1 to 1:3. The fusible conductive inks can be employed in the manufacturing of microfluidic systems to form electrodes, electrically conductive traces and/or electrically conductive contact pads.Type: GrantFiled: September 30, 2004Date of Patent: July 22, 2008Assignee: Lifescan, Inc.Inventors: James Iain Rodgers, Margaret Maclennan, James Moffat, Alan McNeilage
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Patent number: 7351770Abstract: Ionic hydrophilic high molecular weight redox polymers for use in enzymatic electrochemical-based sensors include a hydrophilic polymer (such as a hydrophilic polymer backbone) with ionic portions (e.g., cationic monomers incorporated in the hydrophilic polymer backbone) and a plurality of attached redox mediators. The redox mediators can be, for example, covalently attached to the hydrophilic polymer in a pendant manner. An exemplary cationic hydrophilic high molecular weight redox polymer is synthesized by co-polymerization of a hydrophilic acrylamide monomer, [2-(acryloyloxy)ethyl]trimethyl ammonium chloride and vinyl ferrocene.Type: GrantFiled: September 30, 2004Date of Patent: April 1, 2008Assignee: Lifescan, Inc.Inventors: Zuifang Liu, James Iain Rodgers, Geoffrey Lillie, Marco Fabio Cardosi
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Patent number: 7109271Abstract: A redox polymer for use in an electrochemical-based sensor includes a hydrophobic polymer backbone (e.g., a hydrophobic poly(methyl methacrylate) polymer backbone) and at least one hydrophilic polymer arm (such as a hydrophilic oligo(N-vinylpyrrolidinone) polymer arm) attached to the hydrophobic polymer backbone. The redox polymer also includes a plurality of redox mediators (e.g., ferrocene-based redox mediators) attached to the at least one hydrophilic polymer arm.Type: GrantFiled: July 28, 2004Date of Patent: September 19, 2006Assignee: LifeScan, Inc.Inventors: Zuifang Liu, James Iain Rodgers, Geoffrey Lillie
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Patent number: 6990849Abstract: A microfluidic analytical system for monitoring an analyte (for example, glucose) in a liquid sample (e.g., ISF) includes an analysis module with at least one micro-channel for receiving and transporting a liquid sample, at least one analyte sensor for measuring an analyte in the liquid sample and at least one position electrode. The analyte sensor(s) and position electrode(s) are in operative communication with the micro-channel. The microfluidic system also includes a meter configured for measuring an electrical characteristic (such as impedance or resistance) of the position electrode(s). Moreover, the measured electrical characteristic is dependent on the position of the liquid sample in the micro-channel that is in operative communication with the position electrode for which an electrical characteristic is measured.Type: GrantFiled: March 26, 2004Date of Patent: January 31, 2006Assignee: Lifescan, Inc.Inventors: Sebastian Bohm, James Iain Rodgers, Alan McNeilage, James Moffat, Matthias Stiene, Tanja Richter