Patents by Inventor Alastair Hodges
Alastair Hodges 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: 20070205103Abstract: Electrochemical sensors for investigating a physiological sample and methods of manufacture are disclosed. The sensor includes an electrochemical reaction cell, having electrodes and a reagent, and laterally spaced electrical contact points for electrically communication with a meter. Further described herein is a multi-chambered sensor having an electrochemical reaction cell and an immunological cell. The multi-chambered cell can also include a pre-chamber.Type: ApplicationFiled: November 21, 2005Publication date: September 6, 2007Applicant: LifeScan, Inc.Inventors: Alastair Hodges, Jerry Pugh, Garry Chambers
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Publication number: 20070170200Abstract: A strip ejection system for holding and ejecting a strip is provided. The system includes a body and a strip movement section. The strip moving section includes all elements of the system that are involved with moving the strip, including a pressing element for pressing against the strip to move the strip from a first position to a second position. The pressing element is the only element of the strip movement section that is movable relative to the body.Type: ApplicationFiled: February 17, 2005Publication date: July 26, 2007Applicant: Universal Biosensors Pty Ltd.Inventors: Garry Chambers, Alastair Hodges, David Sayer
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Publication number: 20070074977Abstract: Methods and apparatus for electrochemically determining an analyte concentration value in a physiological sample are disclosed. The methods include using a test strip in which two time-current transients are measured by a meter electrically connected to an electrochemical test strip. Integrative current values are derived from the time-current transients and used in the calculation of analyte concentration.Type: ApplicationFiled: September 30, 2005Publication date: April 5, 2007Applicant: LifeScan, Inc.Inventors: Sherry Guo, Alastair Hodges, Ronald Chatelier, Bin Zhang
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Publication number: 20070062315Abstract: The current invention provides a device, and a method for using the device, for ensuring that capillary or wicking fill device is fully filled. In particular this invention is directed to, but not limited to, use with capillary or wicking action filled electrochemical sensors suitable for use in analyzing blood or interstitial fluids.Type: ApplicationFiled: October 9, 2006Publication date: March 22, 2007Applicant: LifeScan, Inc.Inventor: Alastair Hodges
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Publication number: 20070017805Abstract: The invention disclosed in this application is a method and device for combining the sampling and analyzing of sub-dermal fluid samples, e.g., interstitial fluid or whole blood, in a device suitable for hospital bedside and home use. It is applicable to any analyte that exists in a usefully representative concentration in the fluid, and is especially suited to the monitoring of glucose.Type: ApplicationFiled: June 30, 2006Publication date: January 25, 2007Applicant: LifeScan, Inc.Inventors: Alastair Hodges, Ronald Chatelier, Garry Chambers
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Publication number: 20060266644Abstract: Electrochemical sensors for investigating a physiological sample and methods of manufacture are disclosed. The sensor includes a longitudinally extending reaction cell, having electrodes and a reagent, and laterally spaced electrical contact points for electrically communication with a meter. An array of such sensors is further disclosed including connective flaps for joining adjacent sensors. In use, the array of sensors can be stored in a folded configuration and dispensed individually.Type: ApplicationFiled: May 25, 2005Publication date: November 30, 2006Applicant: LifeScan, Inc.Inventors: Jerry Pugh, Alastair Hodges, Garry Chambers
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Publication number: 20060254932Abstract: A biosensor for use in determining a concentration of a component in an aqueous liquid sample is provided including: an electrochemical cell having a first electrically resistive substrate having a thin layer of electrically conductive material, a second electrically resistive substrate having a thin layer of electrically conductive material, the substrates being disposed with the electrically conductive materials facing each other and being separated by a sheet including an aperture, the wall of which aperture defines a cell wall and a sample introduction aperture whereby the aqueous liquid sample may be introduced into the cell; and a measuring circuit.Type: ApplicationFiled: July 17, 2006Publication date: November 16, 2006Applicant: LifeScan, Inc.Inventors: Alastair Hodges, Thomas Beck, Oddvar Johansen, Ian Maxwell
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Publication number: 20060237332Abstract: There is disclosed a method of measuring formation of a barrier to restrict or reduce movement of an electroactive species. The method comprises providing an electrochemical cell (1, 2, 3) having a working electrode (23, 24) and a counter electrode (23, 24) spaced from the working electrode, providing a subject component, a testing component and at least one electroactive species within the cell, the subject and testing components being intended to cause the formation of a barrier to restrict or reduce movement of an electroactive species, applying a potential between the working electrode and the counter electrode sufficient to produce a current proportional to the concentration of the electroactive species being measured, and measuring the current at the working electrode to obtain a measure of the formation of the barrier to restrict or reduce movement of the electroactive species.Type: ApplicationFiled: January 16, 2004Publication date: October 26, 2006Applicant: Universal Biosensors PYT LimitedInventors: Alastair Hodges, Ronald Chatelier
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Publication number: 20060201804Abstract: The invention relates to a sensor adapted for electrical connection to a power source having an electrical contact means (3). The sensor has a first insulating substrate (1) carrying a first electrode (2) and a second insulating substrate (7) carrying a second electrode (6). The electrodes are disposed to face each other in spaced apart relationship, sandwiching a spacer (4) therebetween. A first cut-out portion extends through the first insulating substrate (1) and a spacer (4) to expose a first contact area (23) on the second insulating substrate (7). This permits the electrical contact means (31) to effect electrical connection with the first contact (23) which in turn is in electrically conductive connection with the second electrode (6). A similar contact arrangement may be disposed on the opposite side of the sensor.Type: ApplicationFiled: May 15, 2006Publication date: September 14, 2006Applicant: LifeScan, Inc.Inventors: Garry Chambers, Alastair Hodges, Thomas Beck, Ian Maxwell
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Publication number: 20060163061Abstract: The invention relates to an amperometric electrochemical cell having a first insulating substrate carrying a first electrode, a second insulting substrate carrying a second electrode, said electrodes being disposed to face each other and spaced apart by less than 500 ?m, and defining a sample reservoir therebetween, and wherein at least one, and preferably both, insulating substrates and the electrode carried thereon include an electromagnetic radiation transmissive portion in registration with said reservoir. The walls of the electrochemical cell may be formed from a thin metallic portion on a transparent substrate. Such cells are useful in providing visual confirmation of the validity of the electrochemical measurement.Type: ApplicationFiled: March 29, 2006Publication date: July 27, 2006Applicant: LifeScan, Inc.Inventors: Alastair Hodges, Thomas Beck, Ian Maxwell
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Publication number: 20060134713Abstract: Disclosed herein are methods and devices for detecting the presence of an analyte of interest. A biosensor device can include a reaction chamber and an electrochemical detection chamber. The reaction chamber can include at least one immobilized binding site and a probe conjugate adapted to bind to at least one of the target analyte and the immobilized binding site, while the detection chamber can include electrodes for detecting an electrochemical reaction. If present, the target analyte in the fluid sample results in a change in the amount of probe conjugate bound in the reaction chamber, which can be detected electrochemically in the detection chamber.Type: ApplicationFiled: November 21, 2005Publication date: June 22, 2006Applicant: LifeScan, Inc.Inventors: Dennis Rylatt, Alastair Hodges, Ronald Chatelier
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Patent number: 7022217Abstract: The present invention relates to the measurement of the progress of a chemical reaction that generates an electroactive reaction product that is subsequently detected at an electrode amperometrically or coulometrically. The method is useful in applications where it is desirable to follow the progress of a chemical reaction, particularly in sensor applications where the progress of the reaction of an analyte can be useful in determining the analyte concentration.Type: GrantFiled: July 15, 2002Date of Patent: April 4, 2006Assignee: LifeScan, Inc.Inventors: Alastair Hodges, Ron Chatelier
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Publication number: 20060037859Abstract: The present invention relates to electrochemical cells including a connector which mates with a connection device to provide electrical connection to meter circuitry.Type: ApplicationFiled: August 16, 2005Publication date: February 23, 2006Applicant: LifeScan, Inc.Inventors: Alastair Hodges, Garry Chambers
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Patent number: 6939312Abstract: The invention disclosed in this application is a method and device for combining the sampling and analyzing of sub-dermal fluid samples, e.g., interstitial fluid or whole blood, in a device suitable for hospital bedside and home use. It is applicable to any analyte that exists in a usefully representative concentration in the fluid, and is especially suited to the monitoring of glucose.Type: GrantFiled: June 10, 2002Date of Patent: September 6, 2005Assignee: LifeScan, Inc.Inventors: Alastair Hodges, Ron Chatelier, Garry Chambers
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Publication number: 20050173246Abstract: This invention relates to a biosensor and more particularly to an electrochemical biosensor for determining the concentration of an analyte in a carrier. The invention is particularly useful for determining the concentration of glucose in blood and is described herein with reference to that use but it should be understood that the invention is applicable to other analytic determinations.Type: ApplicationFiled: July 22, 2003Publication date: August 11, 2005Applicant: LifeScan, Inc.Inventors: Alastair Hodges, Thomas Beck, Oddvar Johansen
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Publication number: 20050126931Abstract: This invention relates to a method for analyzing the concentration of an analyte in a sample and to automatic analyzing apparatus. The invention will be described herein with particular reference to a method and apparatus for measuring the concentration of glucose or other analytes in blood but is not limited to that use.Type: ApplicationFiled: February 1, 2005Publication date: June 16, 2005Inventors: Ian Maxwell, Thomas Beck, Alastair Hodges
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Publication number: 20050098431Abstract: This invention relates to a biosensor and more particularly to an electrochemical biosensor for determining the concentration of an analyte in a carrier. The invention is particularly useful for determining the concentration of glucose in blood and is described herein with reference to that use but it should be understood that the invention is applicable to other analytic determinations.Type: ApplicationFiled: July 22, 2003Publication date: May 12, 2005Applicant: LifeScan, Inc.Inventors: Alastair Hodges, Thomas Beck, Oddvar Johansen
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Publication number: 20050077176Abstract: This invention relates to a biosensor and more particularly to an electrochemical biosensor for determining the concentration of an analyte in a carrier. The invention is particularly useful for determining the concentration of glucose in blood and is described herein with reference to that use but it should be understood that the invention is applicable to other analytic determinations.Type: ApplicationFiled: July 22, 2003Publication date: April 14, 2005Applicant: LifeScan, Inc.Inventors: Alastair Hodges, Thomas Beck, Oddvar Johansen
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Patent number: 6878251Abstract: The invention provides a method for determining the concentration of an analyte in a sample comprising the steps of heating the sample and measuring the concentration of the analyte or the concentration of a species representative thereof in the sample at a predetermined point on a reaction profile by means that are substantially independent of temperature. Also provided is an electrochemical cell comprising a spacer pierced by an aperture which defines a cell wall, a first metal electrode on one side of the spacer extending over one side of the aperture, a second metal electrode on the other side of the spacer extending over the side of the aperture opposite the first electrode, means for admitting a sample to the cell volume defined between the electrodes and the cell wall, and means for heating a sample contained within the cell.Type: GrantFiled: February 19, 2002Date of Patent: April 12, 2005Assignee: LifeScan, Inc.Inventors: Alastair Hodges, Thomas W. Beck
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Publication number: 20050034983Abstract: The invention relates to a sensor adapted for electrical connection to a power source having an electrical contact means (3). The sensor has a first insulating substrate (1) carrying a first electrode (2) and a second insulating substrate (7) carrying a second electrode (6). The electrodes are disposed to face each other in spaced apart relationship, sandwiching a spacer (4) therebetween. A first cut-out portion extends through the first insulating substrate (1) and a spacer (4) to expose a first contact area (23) on the second insulating substrate (7). This permits the electrical contact means (31) to effect electrical connection with the first contact (23) which in turn is in electrically conductive connection with the second electrode (6). A similar contact arrangement may be disposed on the opposite side of the sensor.Type: ApplicationFiled: September 24, 2004Publication date: February 17, 2005Inventors: Garry Chambers, Alastair Hodges, Thomas Beck, Ian Maxwell