Patents by Inventor Steven C. Charlton
Steven C. Charlton 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: 20080289749Abstract: A method for manufacturing a diagnostic test strip is disclosed according to one embodiment. The method includes the acts of providing an application sheet having a plurality of adhesive dots thereon, providing a first substrate layer having at least one feature located thereon, and providing a second substrate layer. The method further including the acts of transferring at least one of the plurality of adhesive dots located on the application sheet to the first substrate layer, aligning the first substrate layer with the second substrate layer, and attaching the first substrate layer and the second substrate layer using the transferred adhesive dots, wherein the attaching of the first and second substrate layers is performed without any additional alignment.Type: ApplicationFiled: May 13, 2005Publication date: November 27, 2008Inventors: Steven C. Charlton, Sung-Kwon Jung
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Publication number: 20080257020Abstract: A system for analyzing the concentration of an analyte in a fluid sample comprises a test strip and a meter. The test strip is capable of being inoculated by the fluid sample. The test strip includes a test element, which contains at least one reagent adapted to cause a reaction when brought into contact with the analyte. The meter includes a read-head, a repositioning device, and a display. The read-head is capable of producing a signal indicative of the reaction between the analyte and the at least one reagent. The display being capable of displaying the analyte concentration. The repositioning device is adapted to move the test strip from a loading position to a testing position. The testing position positions the test element proximate to the read-head.Type: ApplicationFiled: September 19, 2005Publication date: October 23, 2008Inventors: Sung-Kwon Jung, Steven C. Charlton
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Publication number: 20080199364Abstract: A container with a rotatable lid for reading and handling diagnostic reagents in tape form comprising a body portion, a lid portion, a continuous tape, a reagent-sensing device, and a storage device. The body portion includes an inner and outer surface. The lid portion is attached to the body portion and is adapted to rotate from a closed position to an open position. The continuous tape includes a diagnostic reagent. The reagent-sensing device is attached to either the body portion or the lid portion and adapted to read the diagnostic reagent. The storage device is attached to the body portion that is adapted to hold and dispense an unused portion of the continuous tape. During the rotation of the lid portion, the continuous tape is advanced from the first storage device and is extended over the reagent-sensing device.Type: ApplicationFiled: March 19, 2008Publication date: August 21, 2008Inventor: Steven C. Charlton
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Publication number: 20080159913Abstract: A fluid sensor comprises a formed plastic body and a reagent. The body has a top face with an integral first surface. The body also has a bottom face opposed to the first surface and a sidewall that extends from the periphery of the top face. The first surface is adapted to accept a fluid sample. The reagent is disposed on the integral first surface and causes a color change detectable on the bottom face when the reagent reacts with an analyte in the fluid sample.Type: ApplicationFiled: January 31, 2006Publication date: July 3, 2008Inventors: Sung-Kwon Jung, Steven C. Charlton, Suny J. George, Andrew J. Dosmann, Karen L. Marfurt
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Publication number: 20080105024Abstract: A test sensor is made that is adapted to assist in determining the concentration of an analyte in a fluid sample. The method includes providing a lid and providing a base. The lid is attached to the base to form an attached lid-base structure. The lid-base structure has a first end adapted to receive the fluid sample and a second opposing end adapted to be placed into a meter. Auto-calibration information is assigned to the lid-base structure. The second opposing end is formed such that the shape of the second opposing end corresponds to the auto-calibration information.Type: ApplicationFiled: November 5, 2007Publication date: May 8, 2008Inventors: John P. Creaven, Andrew J. Dosmann, Allen J. Brenneman, Steven C. Charlton
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Patent number: 7364699Abstract: A container with a rotatable lid for reading and handling diagnostic reagents in tape form comprising a body portion, a lid portion, a continuous tape, a reagent-sensing device, and a storage device. The body portion includes an inner and outer surface. The lid portion is attached to the body portion and is adapted to rotate from a closed position to an open position. The continuous tape includes a diagnostic reagent. The reagent-sensing device is attached to either the body portion or the lid portion and adapted to read the diagnostic reagent. The storage device is attached to the body portion that is adapted to hold and dispense an unused portion of the continuous tape. During the rotation of the lid portion, the continuous tape is advanced from the first storage device and is extended over the reagent-sensing device.Type: GrantFiled: May 14, 2004Date of Patent: April 29, 2008Assignee: Bayer HealthCare LLCInventor: Steven C. Charlton
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Patent number: 7270247Abstract: A storage cartridge for dispensing biosensors used in the determination of an analyte in body fluid comprises a hollow body for housing a stack of biosensors having an open top, a flexible conveying member disposed over the open top of the body, the flexible conveying member having an aperture formed therein for receiving a biosensor from the stack of biosensors, a plate adapted to press the sliding conveying member against the open top to form a substantially moisture-impervious seal around the open top of the body and to permit the conveying member to slide between the plate and the open top, and means for biasing the stack of biosensors towards the open top.Type: GrantFiled: March 7, 2003Date of Patent: September 18, 2007Assignee: Bayer HealthCare LLCInventor: Steven C. Charlton
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Patent number: 6960287Abstract: A test sensor having a pair of electrodes and a reagent for electrochemically measuring the concentration of the analyte in a liquid sample. The test sensor comprises a capillary channel for collecting the liquid sample and a conductor disposed outside the capillary channel. The conductor is in fluid communication with the capillary channel. The liquid test sample is collected and moved through the capillary channel. The liquid test sample contacts the conductor when the capillary channel is substantially full to signal a full condition.Type: GrantFiled: May 24, 2002Date of Patent: November 1, 2005Assignee: Bayer CorporationInventor: Steven C. Charlton
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Publication number: 20040258564Abstract: A container with a rotatable lid for reading and handling diagnostic reagents in tape form comprising a body portion, a lid portion, a continuous tape, a reagent-sensing device, and a storage device. The body portion includes an inner and outer surface. The lid portion is attached to the body portion and is adapted to rotate from a closed position to an open position. The continuous tape includes a diagnostic reagent. The reagent-sensing device is attached to either the body portion or the lid portion and adapted to read the diagnostic reagent. The storage device is attached to the body portion that is adapted to hold and dispense an unused portion of the continuous tape. During the rotation of the lid portion, the continuous tape is advanced from the first storage device and is extended over the reagent-sensing device.Type: ApplicationFiled: May 14, 2004Publication date: December 23, 2004Inventor: Steven C. Charlton
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Publication number: 20040248312Abstract: A fluid collection apparatus adapted to test a concentration of an analyte in a fluid, including a lid and a base. Further included is a spacer disposed between the lid and the base. The spacer forms a capillary channel, which has an opening and is designed to collect the fluid. The capillary channel includes a reagent that reacts with the fluid to produce a measurable reaction. The reaction will provide a measurable indication of the concentration of the analyte in the fluid. Coupled to the lid is a lance that is moveable to the base and is moveable to a position adjacent the opening of the capillary channel.Type: ApplicationFiled: June 6, 2003Publication date: December 9, 2004Applicant: Bayer Healthcare, LLCInventors: Mark S. Vreeke, Steven C. Charlton, Alan R. McCleary, Bruce A. Flora
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Publication number: 20030175155Abstract: A storage cartridge for dispensing biosensors used in the determination of an analyte in body fluid comprises a hollow body for housing a stack of biosensors having an open top, a flexible conveying member disposed over the open top of the body, the flexible conveying member having an aperture formed therein for receiving a biosensor from the stack of biosensors, a plate adapted to press the sliding conveying member against the open top to form a substantially moisture-impervious seal around the open top of the body and to permit the conveying member to slide between the plate and the open top, and means for biasing the stack of biosensors towards the open top.Type: ApplicationFiled: March 7, 2003Publication date: September 18, 2003Applicant: Bayer Healthcare, LLCInventor: Steven C. Charlton
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Publication number: 20030036200Abstract: A testing device for analyzing the glucose concentration of a sample of blood is adapted to remove a test sensor from a sensor package. The testing device comprises an inlet region and a puncturing member The inlet region receives a portion of the sensor package extending inward from an outer periphery of the test sensor package. The puncturing member is adapted to extend into the inlet region, puncture the sensor package, and to engage a mating feature of the test sensor. The puncturing member is adapted to hold the test sensor in the inlet region in a manner allowing the package to be removed and is adapted to hold the test sensor in the inlet region during testing a blood sample.Type: ApplicationFiled: July 30, 2002Publication date: February 20, 2003Inventor: Steven C. Charlton
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Publication number: 20020185385Abstract: A test sensor having a pair of electrodes and a reagent for electrochemically measuring the concentration of the analyte in a liquid sample. The test sensor comprises a capillary channel for collecting the liquid sample and a conductor disposed outside the capillary channel. The conductor is in fluid communication with the capillary channel. The liquid test sample is collected and moved through the capillary channel. The liquid test sample contacts the conductor when the capillary channel is substantially full to signal a full condition.Type: ApplicationFiled: May 24, 2002Publication date: December 12, 2002Applicant: Bayer CorporationInventor: Steven C. Charlton
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Patent number: 6096269Abstract: The present invention provides a device and a process for detecting an analyte in a biological fluid. That device comprises a cover portion with a restricted area for sample application, a separation matrix for separation of the analyte from substances in the sample that can interfere with detection of the analyte and means for detecting the analyte. The restricted area of sample application is less than 90 percent of the cross-sectional area of the separation matrix and the separation matrix and the means for detecting analyte are under compression of between 14 to 43 percent. A process comprises applying a sample of fluid to such a device and detecting a signal generated from an interaction between the analyte and the detection means in the device.Type: GrantFiled: August 5, 1993Date of Patent: August 1, 2000Inventors: Steven C. Charlton, Michael J. Wilcox
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Patent number: 5856195Abstract: A method and apparatus are provided for calibrating a sensor for determination of analyte concentration. The meter includes a sensor for receiving a user sample to be measured and a processor for performing a predefined test sequence for measuring a predefined parameter value. A memory can be coupled to the processor for storing predefined parameter data values. A calibration code is associated with the sensor and read by the processor before the user sample to be measured is received. The calibration code is used in measuring the predefined parameter data value to compensate for different sensor characteristics.Type: GrantFiled: October 30, 1996Date of Patent: January 5, 1999Assignee: Bayer CorporationInventors: Steven C. Charlton, Larry D. Johnson, Matthew K. Musho, Joseph E. Perry
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Patent number: 5854074Abstract: A sensor dispensing instrument is adapted to receive a generally circular sensor pack containing a plurality of blood glucose sensors. Each of the sensors are disposed in sensor cavities, each of which is in fluid communication with a corresponding desiccant cavity and has a support wall that assists in directing the sensor as its being ejected from the cavity. The sensor pack is loaded on an indexing disk in the instrument such that when a slide actuator on the instrument is moved toward a testing position, a feed mechanism engaged by the slide actuator moves a knife blade thereon toward one of the sensor cavities. The knife blade pierces a portion of a foil covering the sensor cavity and engages the sensor disposed in the cavity to thereby eject the sensor from the sensor cavity.Type: GrantFiled: January 17, 1997Date of Patent: December 29, 1998Assignee: Bayer CorporationInventors: Steven C. Charlton, Anne T. Miller, Joseph L. Moulton, Matthew A. Schumann, Dennis Slomski, Frank W. Wogoman
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Patent number: 5810199Abstract: A sensor dispensing instrument is adapted to receive a generally circular sensor pack containing a plurality of blood glucose sensors. Each of the sensors are disposed in sensor cavities, each of which is in fluid communication with a corresponding desiccant cavity and has a support wall that assists in directing the sensor as its being ejected from the cavity. The sensor pack is loaded on an indexing disk in the instrument such that when a slide actuator on the instrument is moved toward a testing position, a feed mechanism engaged by the slide actuator moves a knife blade thereon toward one of the sensor cavities. The knife blade pierces a portion of a foil covering the sensor cavity and engages the sensor disposed in the cavity to thereby eject the sensor from the sensor cavity.Type: GrantFiled: September 2, 1997Date of Patent: September 22, 1998Assignee: Bayer CorporationInventors: Steven C. Charlton, Anne T. Miller, Joseph L. Moulton, Matthew A. Schumann, Dennis Slomski, Frank W. Wogoman
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Patent number: 5798031Abstract: The present invention concerns an electrochemical sensor made up of an insulating base having an electrode layer on its surface and a lid of deformable material which comprises a concave area in the central portion thereof, so that when it is mated with the base, the lid and base form a capillary space containing the electrode layer. When the electrode layer is in operative contact with a reaction layer comprising an enzyme which will cause the production of mobile electrons when contacted with a suitable analyte, the concentration of analyte, e.g. glucose in blood, can be measured by measuring the current created by the flow of mobile electrons when contacted with a suitable analyte, the concentration of analyte, e.g. glucose in blood, can be measured by measuring the current created by the flow of mobile electrons.Type: GrantFiled: May 12, 1997Date of Patent: August 25, 1998Assignee: Bayer CorporationInventors: Steven C. Charlton, Larry D. Johnson, Matthew K. Musho, Dennis Slomski
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Patent number: 5759364Abstract: Disclosed is an electrochemical sensor which is made up of an insulating base plate bearing an electrode on its surface which reacts with an analyte to produce mobile electrons. The base plate is mated with a lid of a deformable material which has a concave area surrounded by a flat surface so that when mated to the base plate there is formed a capillary space into which a fluid test sample can be drawn. The side of the lid facing the base is coated with a polymeric material which serves to bond the lid to the base plate and to increase the hydrophilic nature of the capillary space.Type: GrantFiled: May 2, 1997Date of Patent: June 2, 1998Assignee: Bayer CorporationInventors: Steven C. Charlton, Yingping Deng, Karl-Heinz Hildenbrand, Larry D. Johnson, James J. Venosky
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Patent number: 5738244Abstract: A sensor dispensing instrument is adapted to receive a generally circular sensor pack containing a plurality of blood glucose sensors. Each of the sensors are disposed in sensor cavities, each of which is in fluid communication with a corresponding desiccant cavity and has a support wall that assists in directing the sensor as its being ejected from the cavity. The sensor pack is loaded on an indexing disk in the instrument such that when a slide actuator on the instrument is moved toward a testing position, a feed mechanism engaged by the slide actuator moves a knife blade thereon toward one of the sensor cavities. The knife blade pierces a portion of a foil covering the sensor cavity and engages the sensor disposed in the cavity to thereby eject the sensor from the sensor cavity.Type: GrantFiled: June 10, 1996Date of Patent: April 14, 1998Assignee: Bayer CorporationInventors: Steven C. Charlton, Anne T. Miller, Joseph L. Moulton, Matthew A. Schumann, Dennis Slomski, Frank W. Wogoman