| LifeScan Scotland Limited Patent applications |
| Patent application number | Title | Published |
|---|
| 20110290668 | ANALYTICAL TEST STRIP WITH CROSSROADS EXPOSED ELECTRODE CONFIGURATION - An electrochemical-based analytical test strip for the determination of an analyte (such as glucose) in a bodily fluid sample (for example, whole blood) includes an electrically insulating base layer, a patterned conductor layer disposed over the electrically-insulating layer, and a patterned insulation layer, with an electrode exposure window therethrough, disposed over the patterned conductor layer. The patterned conductive layer of the electrochemical-based analytical test strip includes at least one working electrode and a counter/reference electrode. In addition, at least a portion of the electrode exposure window is configured to expose a working electrode exposed portion and a counter/reference electrode exposed portion, with the working electrode exposed portion being rectangular in shape and the counter/reference electrode exposed portion being one of a crossroads shape and an at least six-sided portion of a crossroads shape. | 12-01-2011 |
| 20110284393 | ANALYTICAL TEST STRIP WITH AN ELECTRODE HAVING ELECTROCHEMICALLY ACTIVE AND INERT AREAS OF A PREDETERMINED SIZE AND DISTRIBUTION - 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. | 11-24-2011 |
| 20110270063 | METHOD OF INPUTTING DATA INTO AN ANALYTE TESTING DEVICE - A meter is provided that includes an improved user interface that enables the user to take a specific action, leading them directly to data input options. Such a user interface could be used to input first selected information, such as whether a test was premeal or postmeal, immediately after receiving a result. Optionally, the user interface may include the ability to add an additional comment after inputting the first selected information. Provision of such a user interface would facilitate simpler capture of the first selected information each time the user performs a test, leading to an enhanced understanding of a patient's level of glycemic control. Designing a user interface to enable first selected information to be entered by a user directly after receiving a result is more likely to engage a patient by making it easy and simple to enter important information. This may enable capture of the information thought to be most pertinent e.g. premeal and postmeal information, enhancing the understanding by patients and their carers of the patient's control. | 11-03-2011 |
| 20110263959 | METHOD OF INPUTTING DATA INTO AN ANALYTE TESTING DEVICE - A meter is provided that includes an improved user interface that enables the user to take a specific action, leading them directly to data input options. Such a user interface could be used to input first selected information, such as whether a test was premeal or postmeal, immediately after receiving a result. Optionally, the user interface may include the ability to add an additional comment after inputting the first selected information. Provision of such a user interface would facilitate simpler capture of the first selected information each time the user performs a test, leading to an enhanced understanding of a patient's level of glycemic control. Designing a user interface to enable first selected information to be entered by a user directly after receiving a result is more likely to engage a patient by making it easy and simple to enter important information. This may enable capture of the information thought to be most pertinent e.g. premeal and postmeal information, enhancing the understanding by patients and their carers of the patient's control. | 10-27-2011 |
| 20110189062 | TEST STRIP EJECTION MECHANISM - A test strip ejection mechanism, for use with a test strip receiving port and a test strip, includes a framework, an elongated shape memory alloy (SMA) strip (e.g., a SMA wire), a slider, and a heating module. The SMA strip has first and second ends that are attached to the framework and exhibits a solid state transition temperature. The slider is configured to travel along the framework. The heating module is configured to heat the SMA strip from a temperature below the solid state transition temperature to a temperature above the solid state transition temperature. Moreover, the SMA strip and slider are configured such that the slider travels along the framework under an applied force exerted on the slider by the SMA strip as the shape memory strip is heated from a temperature below the solid state transition temperature to a temperature above the solid state temperature by the heating module. In addition, the slider has a proximal end configured to engage a test strip received within a test strip receiving port and eject the test strip from the test strip receiving port as the slider travels along the framework. A test meter for use with a test strip includes a test strip receiving port and a test strip ejection mechanism. | 08-04-2011 |
| 20110186588 | METHOD FOR EJECTING A TEST STRIP FROM A TEST METER - A method for ejecting a test strip from a test meter includes initiating activation of a test strip ejection mechanism that is in a pre-ejection state. In the method, the test strip ejection mechanism includes a shape memory alloy strip that exhibits a solid state transition temperature and has a programmed configuration and a deformed configuration. In the test strip ejection mechanism pre-ejection state, a test strip has been received within a test strip receiving port of the test meter and the shape memory alloy strip is in the deformed configuration. The method also includes heating, in response to the initiation step, the shape memory alloy strip from below the solid state transition temperature to above the solid state transition temperature. The heating results in the shape memory alloy strip undergoing a transformation from the deformed configuration to the programmed configuration. The method also includes applying a force produced by the transformation from the deformed configuration to the programmed configuration to the test strip and, thereby, ejecting the test strip from the test strip receiving port. | 08-04-2011 |
| 20110094896 | DUAL CHAMBER, MULTI-ANALYTE TEST STRIP WITH OPPOSING ELECTRODES - A dual chamber, multi-analyte test strip has a first insulating layer, a first electrically conductive layer, with a first working electrode, disposed on the first insulating layer and a first patterned spacer layer positioned above the first electrically conductive layer. The first patterned spacer layer has a first sample-receiving chamber, with first and second end openings, defined therein that overlies the first working electrode. The test strip also includes a first counter/reference electrode layer that is exposed to the first sample receiving chamber and is in an opposing relationship to the first working electrode. The test strip further includes a counter/reference insulating layer disposed over the first counter/reference electrode layer and a second counter/reference electrode layer disposed on the counter/reference substrate. Also included in the test strip is a second patterned spacer layer that is positioned above the second counter/reference electrode layer. The second patterned spacer layer has a second sample-receiving chamber, with first and second end openings, defined therein. The test strip additionally has a second electrically conductive layer, with a second working electrode, disposed above the second patterned spacer layer, a second insulating layer disposed above the second electrically conductive layer, a first analyte reagent layer disposed on the first working electrode within the first sample-receiving chamber; and a second analyte reagent layer disposed on the second working electrode within the second sample-receiving chamber. The second counter/reference electrode layer is exposed to the second sample receiving chamber and is in an opposing relationship to the second working electrode. | 04-28-2011 |
| 20110094882 | TEST METER FOR USE WITH A DUAL CHAMBER, MULTI-ANALYTE TEST STRIP WITH OPPOSING ELECTRODES - A test meter for use with a dual-chamber, multi-analyte test strip includes a test strip receiving module and a signal processing module. The test strip receiving module has a first electrical connector configured for contacting a first analyte contact pad of a first working electrode of the test strip; a second electrical connector configured for contacting a second analyte contact pad of a second working electrode of the test strip, a third electrical connector configured for contacting a first counter/reference contact pad of a first counter/reference electrode layer of the test strip, and a fourth electrical connector configured for contacting a second counter/reference contact pad of a second counter/reference electrode layer of the test strip. The signal processing module is configured to receive a first signal via the first electrical connector and the third electrical connector and employ the first signal for the determination of a first analyte (such as glucose) in a bodily fluid sample (for example, whole blood sample) applied to the dual-chamber, multi-analyte test strip. Moreover, the signal processing module is also configured to receive a second signal via the second electrical connector and fourth electrical connector and employ the second signal for the determination of a second analyte (e.g., a ketone analyte) in the bodily fluid sample applied to the dual-chamber, multi-analyte test strip. Furthermore, the third and fourth electrical contacts provide contact in an opposing manner. | 04-28-2011 |
| 20110079522 | MULTI-ANALYTE TEST STRIP WITH INLINE WORKING ELECTRODES AND SHARED OPPOSING COUNTER/REFERENCE ELECTRODE - A co-facial multi-analyte test strip includes a first insulating layer with an electrically conductive layer disposed thereon. The electrically conductive layer includes a first working electrode with a first analyte contact pad and a second working electrode with a second analyte contact pad. In addition, the first and second working electrodes of the electrically conductive layer are disposed on the first insulating layer in a planar inline configuration. The multi-analyte test strip also includes a patterned spacer layer positioned above the electrically conductive layer, with the patterned spacer layer defining a single bodily fluid sample-receiving chamber therein that overlies the first working electrode and the second working electrode. The multi-analyte test strip further includes a shared counter/reference electrode layer overlying and exposed to the bodily-fluid sample receiving chamber and configured in an opposing relationship to the first and second working electrodes; and a second insulating layer disposed above the shared counter/reference electrode layer. Moreover, the co-facial multi-analyte test strip also has a multi-analyte reagent layer disposed on the electrically conductive layer with the multi-analyte reagent layer having a first analyte reagent portion disposed on the first working electrode within the sample-receiving chamber and a second analyte reagent layer disposed the second working electrode within the sample-receiving chamber. | 04-07-2011 |
| 20110048972 | MULTI-ANALYTE TEST STRIP WITH SHARED COUNTER/REFERENCE ELECTRODE AND INLINE ELECTRODE CONFIGURATION - A multi-analyte test strip includes a first insulating layer and an electrically conductive layer disposed on the first insulating layer. The electrically conductive layer has a first working electrode with a first analyte contact pad, a shared counter/reference electrode with a counter/reference electrode contact pad, and a second working electrode with a second analyte contact pad. The multi-analyte test strip also includes 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 with the patterned spacer layer defining a bodily fluid sample-receiving chamber that overlies the first working electrode, the shared counter/reference electrode and the second working electrode. The multi-analyte test strip further includes a mediator reagent layer disposed over the first working electrode, the shared counter/reference electrode and the second working electrode; a first analyte reagent layer disposed over the first working electrode and mediator reagent layer; and a second analyte reagent layer disposed over the second working electrode and mediator reagent layer. Furthermore, the first analyte electrode, shared counter/reference electrode and second analyte electrode of the multi-analyte test strip are disposed on the first insulating layer in a planar inline configuration. | 03-03-2011 |
| 20100273249 | ANALYTICAL TEST STRIPS - An analytical test strip includes a substrate and a reagent layer disposed on a portion of the substrate. The reagent layer includes an enzymatic reagent ink comprising an amount of hydrophobic silica material, an amount of surfactant; and an amount of enzyme. The amounts of the hydrophobic silica material and the surfactant in the enzymatic reagent ink is predetermined using a first relationship and a second relationship. The first relationship is between wetability of a representative hydrophobic silica material and at least a first calibration characteristic of an analytical test strip that includes an enzymatic reagent ink containing the representative hydrophobic silica material. In addition, the first relationship defines a minimum wetability that provides an acceptable first calibration characteristic. The second relationship defines wetability of a mixture of the hydrophobic silica material and the surfactant across a range of relative amounts of the hydrophobic silica material and the surfactant. The predetermined amounts of the hydrophobic silica material and the surfactant employed in the enzymatic reagent ink provide at least the minimum wetability defined by the first relationship during manufacturing of the enzymatic reagent ink and, therefore, an acceptable first calibration characteristic. | 10-28-2010 |
| 20100270152 | ENZYMATIC REAGENT INK - An enzymatic reagent ink includes an amount of hydrophobic silica material (e.g., a fumed silica material), an amount of surfactant (such as a non-ionic surfactant); and an amount of enzyme (for example, glucose oxidase). The amounts of the hydrophobic silica material and the surfactant present in the enzymatic reagent ink is predetermined based on first and second relationships. The first relationship is a relationship between wetability of a representative hydrophobic silica material and a first calibration characteristic of an analytical test strip that includes an enzymatic reagent ink containing the representative hydrophobic silica material. In addition, such a first relationship defines a minimum wetability that provides an acceptable first calibration characteristic. The second relationship is a relationship defining wetability of a mixture of the hydrophobic silica material and a surfactant across a range of relative amounts of the hydrophobic silica material and the surfactant. The amounts of the hydrophobic silica material and the surfactant in the enzymatic reagent ink are predetermined to provide at least the minimum wetability defined by the first relationship during manufacturing of the enzymatic reagent ink, and therefore, an acceptable first calibration characteristic. | 10-28-2010 |
| 20100270151 | METHOD FOR MANUFACTURING AN ENZYMATIC REAGENT INK - A method for manufacturing an enzymatic reagent ink for use in analytical test strips (such as electrochemical-based analytical test strips configured for the determination of glucose in blood) includes determining a first relationship between wetability of a representative hydrophobic silica material (e.g., a hydrophobic fumed silica material) and at least a first calibration characteristic (for example, a calibration slope) of an analytical test strip that includes an enzymatic reagent ink containing the representative hydrophobic silica material. In the method, the first relationship defines a minimum wetability that provides an acceptable first calibration characteristic. The method also includes determining a second relationship defining wetability of a mixture of a particular hydrophobic silica material and a particular surfactant across a range of relative amount of the particular hydrophobic silica material and the particular surfactant and, subsequently, combining an amount of the particular hydrophobic silica material, an amount of the particular surfactant, and an amount of enzyme (such as glucose oxidase) to form an enzymatic reagent ink. Moreover, the amounts of the particular hydrophobic silica material and the particular surfactant are predetermined based on the second relationship to provide at least the minimum wetability defined by the first relationship. | 10-28-2010 |
| 20100206727 | TEST STRIP COMPRISING PATTERNED ELECTRODES - 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. | 08-19-2010 |
| 20090325307 | METHOD FOR MANUFACTURING A STRIP FOR USE WITH A MULTI-INPUT METER - Strips particularly test strips and adapters for test strips, for use in meters for the electrochemical measurement of analyte in a sample material and in particular the glucose concentration of a sample of blood. The strips comprise a plurality of working connectors, for interfacing with the meter, coupled to one or more working electrodes. The strips are of particular use in adapting multi-input meters for single input use. | 12-31-2009 |
| 20090302873 | System for electrochemically measuring an analyte in a sample material - Strips, particularly test strips and adapters for test strips, for use in meters for the electrochemical measurement of analyte in a sample material and in particular the glucose concentration of a sample of blood. The strips comprise a plurality of working connectors, for interfacing with the meter, coupled to one or more working electrodes. The strips are of particular use in adapting multi-input meters for single input use. | 12-10-2009 |
| 20090302872 | Electrochemical strip for use with a multi-input meter - Strips, particularly test strips and adapters for test strips, for use in meters for the electrochemical measurement of analyte in a sample material and in particular the glucose concentration of a sample of blood. The strips comprise a plurality of working connectors, for interfacing with the meter, coupled to one or more working electrodes. The strips are of particular use in adapting multi-input meters for single input use. | 12-10-2009 |
| 20090280551 | A REAGENT FORMULATION USING RUTHENIUM HEXAMINE AS A MEDIATOR FOR ELECTROCHEMICAL TEST STRIPS - 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. | 11-12-2009 |
