Patents by Inventor Leanne Mills
Leanne Mills 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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Publication number: 20160178574Abstract: An analyte measurement system is disclosed herein. The analyte measurement system includes a test strip. The test strip includes at least two electrodes spaced apart in a reaction chamber, one of said electrodes including a conductive material having a coating applied thereupon. The analyte measurement system also includes an analyte measurement device. The analyte measurement device includes a strip port having connectors configured to coupled to the electrodes of the test strip. The applied coating enables a capacitance value of the test strip to be measured in order to determine compatibility of the test strip with the analyte measurement device.Type: ApplicationFiled: December 17, 2014Publication date: June 23, 2016Inventors: Leanne MILLS, Gavin MACFIE, Marco CARDOSI, Michael ROBERTS
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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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Patent number: 9046480Abstract: The method includes: providing a test strip comprising a reference electrode and a working electrode coated with a reagent layer; applying a fluid sample to the test strip for a reaction period; applying a test voltage between the reference electrode and the working electrode; measuring a test current as a function of time; measuring a steady state current value when the test current has reached an equilibrium; calculating a ratio of the test current to the steady state current value; plotting the ratio of the test current to the steady state current value as a function of the inverse square root of time; calculating an effective diffusion coefficient from the slope of the linearly regressed plot of the ratio of the test current to the steady state current value as a function of the inverse square root of time; and calculating a hematocrit-corrected concentration of analyte.Type: GrantFiled: March 4, 2013Date of Patent: June 2, 2015Assignee: LifeScan Scotland LimitedInventors: Stephen Patrick Blythe, Marco F. Cardosi, Andrew Gill, Leanne Mills, Christopher Philip Leach
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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: 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: 8815076Abstract: A method and system is provided to allow for determination of substantially Hematocrit independent analyte concentration. In one example, an analyte measurement system is provided that includes a test strip and a test meter. The test strip includes a reference electrode and a working electrode, in which the working electrode is coated with a reagent layer. The test meter includes an electronic circuit and a signal processor. The electronic circuit applies a plurality of voltages to the reference electrode and the working electrode over respective durations. The signal processor is configured to determine a substantially hematocrit-independent concentration of the analyte from a plurality of current values as measured by the processor upon application of a plurality of test voltages to the reference and working electrodes over a plurality of durations interspersed with rest voltages lower than the test voltages being applied to the electrodes.Type: GrantFiled: October 10, 2012Date of Patent: August 26, 2014Assignee: Lifescan Scotland LimitedInventors: Marco F. Cardosi, Stephen Patrick Blythe, Matthew Finch, Arlene Thompson, Nina Antonia Naylor, Eric Jason Bailey, Michael Patick Dolan, Gretchen Anderson, Lorraine Comstock, Mary McEvoy, Thomas Sutton, Richard Michael Day, Leanne Mills, Emma Vanessa Jayne Day, Christopher Philip Leach
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Publication number: 20130240375Abstract: The method includes: providing a test strip comprising a reference electrode and a working electrode coated with a reagent layer; applying a fluid sample to the test strip for a reaction period; applying a test voltage between the reference electrode and the working electrode; measuring a test current as a function of time; measuring a steady state current value when the test current has reached an equilibrium; calculating a ratio of the test current to the steady state current value; plotting the ratio of the test current to the steady state current value as a function of the inverse square root of time; calculating an effective diffusion coefficient from the slope of the linearly regressed plot of the ratio of the test current to the steady state current value as a function of the inverse square root of time; and calculating a hematocrit-corrected concentration of analyte.Type: ApplicationFiled: March 4, 2013Publication date: September 19, 2013Applicant: LifeScan Scotland LimitedInventors: Stephen Patrick BLYTHE, Marco F. CARDOSI, Andrew GILL, Leanne MILLS, Christopher Philip LEACH
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Patent number: 8486244Abstract: Described herein is an electrochemical enzymatic analyte test strip and method for making the test strip. The test strip utilizes isolated conductive areas inside the electrodes to define electrode whiskers. The method utilizes laser ablation to define electrode patterns.Type: GrantFiled: December 22, 2009Date of Patent: July 16, 2013Assignee: LifeScan Scotland LimitedInventors: Marco F. Cardosi, Leanne Mills, Emma Vanessa Jayne Day, Richard Michael Day, Christopher Philip Leach
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Patent number: 8460537Abstract: A method for determining an analyte concentration in blood is described that reduces the effects of hematocrit using a test strip attached to a test meter. The test strip includes a working electrode and a reference electrode. The test meter applies a test voltage between the working electrode and the reference electrode. After a user applies a blood sample containing an analyte onto the test strip, the test meter measures a plurality of test currents for a test time interval.Type: GrantFiled: September 3, 2009Date of Patent: June 11, 2013Assignee: LifeScan Scotland LimitedInventors: Stephen Patrick Blythe, Marco F Cardosi, Leanne Mills, Manuel Alvarez-Icaza, Emma Vanessa Jayne Day, Richard Michael Day, Christopher Philip Leach
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Patent number: 8388821Abstract: Description is provided herein for an embodiment of a method determining a hematocrit-corrected glucose concentration. The exemplary method includes providing a test strip having a reference electrode and a working electrode, wherein the working electrode includes a plurality of microelectrodes and is coated with at least an enzyme and a mediator.Type: GrantFiled: October 5, 2007Date of Patent: March 5, 2013Assignee: LifeScan Scotland LimitedInventors: Stephen Patrick Blythe, Marco F. Cardosi, Andrew Gill, Leanne Mills, Christopher Philip Leach
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Patent number: 8293096Abstract: A method and system is provided to allow for determination of substantially Hematocrit independent analyte concentration. In one example, an analyte measurement system is provided that includes a test strip and a test meter. The test strip includes a reference electrode and a working electrode, in which the working electrode is coated with a reagent layer. The test meter includes an electronic circuit and a signal processor. The electronic circuit applies a plurality of voltages to the reference electrode and the working electrode over respective durations. The signal processor is configured to determine a substantially hematocrit-independent concentration of the analyte from a plurality of current values as measured by the processor upon application of a plurality of test voltages to the reference and working electrodes over a plurality of durations interspersed with rest voltages lower than the test voltages being applied to the electrodes.Type: GrantFiled: January 22, 2010Date of Patent: October 23, 2012Assignee: LifeScan Scotland LimitedInventors: Marco F. Cardosi, Stephen Patrick Blythe, Matthew Finch, Arlene Thompson, Nina Antonia Naylor, Eric Jason Bailey, Michael Patrick Dolan, Gretchen Anderson, Lorraine Comstock, Mary McEvoy, Thomas Sutton, Richard Michael Day, Leanne Mills, Emma Vanessa Jayne Day, Christopher Philip Leach
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Publication number: 20120048746Abstract: An analyte test strip for use with a test meter includes a first insulating layer, a first electrically conductive layer disposed on the first insulating layer, a second insulating layer disposed above the first insulating layer, and a patterned spacer layer, positioned between the first insulating layer and the first electrically conductive layer, that defines a sample-receiving chamber. Moreover, the electrically conductive layer includes an electrode portion that is divided into a first electrode sub-portion and a second electrode sub-portion. The electrically conductive layer also includes (i) a first electrical contact pad in electrical communication with the first electrode sub-portion and configured to communicate an electrical response of the first electrical sub-portion to the test meter, and (ii) a second electrical contact pad in electrical communication with the second electrode sub-portion and configured to communicate an electrical response of the second electrical sub-portion to the test meter.Type: ApplicationFiled: August 30, 2010Publication date: March 1, 2012Applicant: Cilag GmbH InternationalInventors: Stephen Patrick BLYTHE, Leanne Mills, Stephen Mackintosh
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Publication number: 20110162978Abstract: A method and system is provided to allow for determination of substantially Hematocrit independent analyte concentration. In one example, an analyte measurement system is provided that includes a test strip and a test meter. The test strip includes a reference electrode and a working electrode, in which the working electrode is coated with a reagent layer. The test meter includes an electronic circuit and a signal processor. The electronic circuit applies a plurality of voltages to the reference electrode and the working electrode over respective durations. The signal processor is configured to determine a substantially hematocrit-independent concentration of the analyte from a plurality of current values as measured by the processor upon application of a plurality of test voltages to the reference and working electrodes over a plurality of durations interspersed with rest voltages lower than the test voltages being applied to the electrodes.Type: ApplicationFiled: January 22, 2010Publication date: July 7, 2011Applicant: LifeScan Scotland Ltd.Inventors: Marco F. CARDOSI, Stephen Patrick Blythe, Matthew Finch, Arlene Thompson, Nina Antonia Naylor, Eric Jason Bailey, Michael Patrick Dolan, Gretchen Anderson, Lorraine Comstock, Mary Mcevoy, Thomas Sutton, Richard Michael Day, Leanne Mills, Emma Vanessa Jayne Day, Christopher Philip Leach
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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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Publication number: 20110005941Abstract: A method for determining an analyte concentration in blood is described that reduces the effects of hematocrit using a test strip attached to a test meter. The test strip includes a working electrode and a reference electrode. The test meter applies a test voltage between the working electrode and the reference electrode. After a user applies a blood sample containing an analyte onto the test strip, the test meter measures a plurality of test currents for a test time interval.Type: ApplicationFiled: September 3, 2009Publication date: January 13, 2011Applicant: LifeScan Scotland Ltd.Inventors: Stephen Patrick BLYTHE, Marco F. Cardosi, Leanne Mills, Manuel Alvarez-Icaza, Emma Vanessa Jayne Day, Richard Michael Day, Christopher Philip Leach
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Publication number: 20100219084Abstract: Description is provided herein for an embodiment of a method determining a hematocrit-corrected glucose concentration. The exemplary method includes providing a test strip having a reference electrode and a working electrode, wherein the working electrode includes a plurality of microelectrodes and is coated with at least an enzyme and a mediator.Type: ApplicationFiled: October 5, 2007Publication date: September 2, 2010Inventors: Stephen Patrick Blythe, Marco F. Cardosi, Andrew Gill, Leanne Mills, Christopher Philip Leach
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Publication number: 20100206727Abstract: Described herein is an analyte test strip and method for making the test strip. The test strip utilizes isolated conductive areas to define electrode whiskers. The method utilizes laser ablation to define electrode patterns.Type: ApplicationFiled: December 22, 2009Publication date: August 19, 2010Applicant: LifeScan Scotland LimitedInventors: Marco F. Cardosi, Leanne Mills, Emma Vanessa Jayne Day, Richard Michael Day, Christopher Philip Leach
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Patent number: 7740801Abstract: A system for the determination of an analyte in a bodily fluid sample includes an analytical test strip and an analytical meter. The analytical test strip has a substrate layer, an electroluminescent component (either an electroluminescent module and/or an electroluminescent lamp) disposed on the substrate layer, and a sample chamber configured for receiving a bodily fluid sample disposed above the substrate layer. Moreover, the analytical meter is configured for insertion of the analytical test strip therein and subsequent determination of the analyte.Type: GrantFiled: October 31, 2006Date of Patent: June 22, 2010Assignee: LifeScan Scotland LimitedInventors: Selwayan Saini, Marco Fabio Cardosi, Leanne Mills, Stephen Patrick Blythe
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Publication number: 20090280551Abstract: Described herein are various embodiments of a test strip, which may be capable of measuring an analyte. The test strip may include a working electrode and a reference electrode where the reagent formulation is disposed on the working electrode. The reagent formulation may be coated onto the test strip. The reagent formulation includes an enzyme, a ruthenium hexamine mediator, and a solution for dissolving the enzyme and the ruthenium hexamine mediator. The reagent formulation may be coated onto the test strip. The reagent formulation includes an enzyme, a ruthenium hexamine mediator, and a solution for dissolving the enzyme and the ruthenium hexamine mediator. The ruthenium hexamine has a concentration range from about 15% to about 20% (weight of mediator/volume) of solution. The enzyme may be either glucose oxidase and glucose dehydrogenase.Type: ApplicationFiled: October 5, 2007Publication date: November 12, 2009Applicant: LifeScan Scotland LimitedInventors: Marco F. Cardosi, Leanne Mills, Christopher Philip Leach
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Publication number: 20080164142Abstract: The invention described herein includes a screen printing process for depositing carbon electrodes including a method for selectively removing components that degrade the electrochemical performance from the surface of said carbon electrodes. In one embodiment of the present invention, the process includes applying a corona treatment to the carbon electrodes.Type: ApplicationFiled: October 27, 2006Publication date: July 10, 2008Inventors: Manuel Alvarez-Icaza, Alun Griffith, Leanne Mills, Dominic Steele