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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Patent number: 9080248Abstract: Systems and methods for electrochemically oxidizing components of a test-sensor reagent prior to deposition on a test sensor comprise at least a first electrode and a second electrode for contacting the test-sensor reagent. The first electrode and the second electrode may have hollow interior portions for contacting the test-sensor reagent to produce a modified test-sensor reagent having a reduced background current.Type: GrantFiled: April 29, 2013Date of Patent: July 14, 2015Assignee: BAYER HEALTHCARE LLCInventors: Sung-Kwon Jung, Steven C. Charlton, Dijia Huang
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Publication number: 20150176054Abstract: A biosensor system determines an analyte concentration of a biological sample using an electrochemical process without Cottrell decay. The biosensor system generates an output signal having a transient decay, where the output signal is not inversely proportional to the square root of the time. The transient decay is greater or less than the ?0.5 decay constant of a Cottrell decay. The transient decay may result from a relatively short incubation period, relatively small sample reservoir volumes, relatively small distances between electrode surfaces and the lid of the sensor strip, and/or relatively short excitations in relation to the average initial thickness of the reagent layer. The biosensor system determines the analyte concentration from the output signal having a transient decay.Type: ApplicationFiled: March 10, 2015Publication date: June 25, 2015Inventors: Huan-Ping Wu, Steven C. Charlton, Amy H. Chu, Andrew J. Edelbrock, Sung-Kwon Jung, Dijia Huang
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Publication number: 20150144484Abstract: A blood glucose monitor includes a can, a replaceable sensor cartridge that includes a frame, an upper spring disposed between the frame and the can, a case for housing the can and sealing the frame, a lower spring disposed between the can and the case, and a meter housing for sealing an upper portion of the frame. The can is capable of accepting the replaceable sensor cartridge. The frame of the removable cartridge has at least at least two walls defining a chamber for accepting a plurality of biosensors, and a bottom portion defining an opening and at least one sealing flange. The frame can further include a desiccant material capable of reducing humidity within the frame. The frame may be dimensioned such that an interference fit constrains the plurality of biosensors prior to inserting the frame within a blood glucose monitor.Type: ApplicationFiled: March 13, 2013Publication date: May 28, 2015Applicant: Bayer HealthCare LLCInventors: Jeffery S. Reynolds, Robert S. Sams, Simin Yao, Eugene Prais, Michael A. Botta, Steven C. Charlton, Mirza Kokic
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Publication number: 20150126838Abstract: An integrated-testing system includes a meter, a lancing device and a storage case. The meter includes a housing, a display and a processor. The storage case holds the meter and the lancing device in a relatively fixed position to each other. The meter and the lancing device are maintained in the storage case in the relatively fixed position until a fluid sample is desired, at which time a first portion of the lancing device is advanced to a position external to the storage case to obtain the fluid sample and a second portion of the lancing device remains relatively fixed in the storage case while the fluid sample is obtained.Type: ApplicationFiled: January 14, 2015Publication date: May 7, 2015Inventor: Steven C. Charlton
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Publication number: 20150111234Abstract: A portable, hand-held glucose testing device includes a housing configured to accommodate a plurality of test sensors in a stacked arrangement and having a wall with an opening defined therein. A plurality of packaged test sensors is stacked in alignment with one another within the housing. Each of the test sensors is packaged within a blister package. The blister package includes a blister package housing and a cover foil overlying a surface of the blister package housing and the test sensor. A drive slide is configured to displace one of the plurality of packaged test sensors out of alignment with other packaged test sensors. A knife mechanism is configured to pierce through the cover foil, and to engage and urge the test sensor to extend through the opening for receiving a sample. A meter contact is configured to engage the test sensor when the test sensor extends through the opening.Type: ApplicationFiled: December 23, 2014Publication date: April 23, 2015Inventors: Steven C. Charlton, Allen Brenneman
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Patent number: 9005527Abstract: A biosensor system determines an analyte concentration of a biological sample using an electrochemical process without Cottrell decay. The biosensor system generates an output signal having a transient decay, where the output signal is not inversely proportional to the square root of the time. The transient decay is greater or less than the ?0.5 decay constant of a Cottrell decay. The transient decay may result from a relatively short incubation period, relatively small sample reservoir volumes, relatively small distances between electrode surfaces and the lid of the sensor strip, and/or relatively short excitations in relation to the average initial thickness of the reagent layer. The biosensor system determines the analyte concentration from the output signal having a transient decay.Type: GrantFiled: May 29, 2013Date of Patent: April 14, 2015Assignee: Bayer Healthcare LLCInventors: Huan-Ping Wu, Steven C. Charlton, Amy H. Chu, Andrew J. Edelbrock, Sung-Kwon Jung, Dijia Huang
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Publication number: 20150098866Abstract: An optic light guide test sensor comprises a light guide, a reagent-coated membrane, and a mesh layer. The reagent-coated membrane and the mesh layer are attached to the light guide at an output end of the light guide. The light guide test sensor is adapted to be used to test the level of an analyte in a biological fluid sample when used with a readhead. A method of manufacturing the light guide test sensor involves providing a plurality of light guides, providing a strip of reagent-coated membrane, and providing a strip of mesh layer. The reagent-coated membrane and mesh layer are attached to the light guides by ultrasonic welding. The reagent-coated membrane and mesh layer may also be attached to the light guides by adhesive.Type: ApplicationFiled: December 15, 2014Publication date: April 9, 2015Inventors: Jeffery S. Reynolds, Steven C. Charlton, Sung-Kwon Jung, Suny J. George
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Patent number: 8981284Abstract: A method of determining auto-calibrating information of a test sensor includes providing an optical read head that includes a light source, a light guide and a detector. The read head forms an opening that is sized to receive a test sensor. The detector includes a linear-detector array or single detector. A test sensor is provided having apertures formed therein. The test sensor is placed in the opening of the optical read head. Light is transmitted from the light source through the apertures. The light transmitted through the apertures using the detector or detecting the absence of light being transmitted through the test sensor using the detector is detected. The detected light or the absence of detected light information from the detector is used to determine the auto-calibration information of the test sensor.Type: GrantFiled: April 9, 2014Date of Patent: March 17, 2015Assignee: Bayer HealthCare LLCInventors: Russell J. Micinski, Andrew J. Dosmann, Steven C. Charlton
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Patent number: 8956308Abstract: An integrated-testing system includes a meter, a lancing device and a storage case. The meter includes a housing, a display and a processor. The storage case holds the meter and the lancing device in a relatively fixed position to each other. The meter and the lancing device are maintained in the storage case in the relatively fixed position until a fluid sample is desired, at which time a first portion of the lancing device is advanced to a position external to the storage case to obtain the fluid sample and a second portion of the lancing device remains relatively fixed in the storage case while the fluid sample is obtained.Type: GrantFiled: September 22, 2009Date of Patent: February 17, 2015Assignee: Bayer HealthCare LLCInventor: Steven C. Charlton
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Patent number: 8940540Abstract: A portable, hand-held glucose testing device includes a housing configured to accommodate a plurality of test sensors in a stacked arrangement and having a wall with an opening defined therein. A plurality of packaged test sensors is stacked in alignment with one another within the housing. Each of the test sensors is packaged within a blister package. The blister package includes a blister package housing and a cover foil overlying a surface of the blister package housing and the test sensor. A drive slide is configured to displace one of the plurality of packaged test sensors out of alignment with other packaged test sensors. A knife mechanism is configured to pierce through the cover foil, and to engage and urge the test sensor to extend through the opening for receiving a sample. A meter contact is configured to engage the test sensor when the test sensor extends through the opening.Type: GrantFiled: March 12, 2013Date of Patent: January 27, 2015Assignee: Bayer HealthCare LLCInventors: Steven C. Charlton, Allen Brenneman
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Patent number: 8940237Abstract: An optic light guide test sensor comprises a light guide, a reagent-coated membrane, and a mesh layer. The reagent-coated membrane and the mesh layer are attached to the light guide at an output end of the light guide. The light guide test sensor is adapted to be used to test the level of an analyte in a biological fluid sample when used with a readhead. A method of manufacturing the light guide test sensor involves providing a plurality of light guides, providing a strip of reagent-coated membrane, and providing a strip of mesh layer. The reagent-coated membrane and mesh layer are attached to the light guides by ultrasonic welding. The reagent-coated membrane and mesh layer may also be attached to the light guides by adhesive.Type: GrantFiled: January 22, 2013Date of Patent: January 27, 2015Assignee: Bayer HealthCare LLCInventors: Jeffery S. Reynolds, Steven C. Charlton, Sung-Kwon Jung, Suny J. George
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Publication number: 20140273041Abstract: A device and system for automatic handling of a sensor strip by a part of meter includes a sensor strip having a first section, a second section, and an intermediate section. The sensor strip includes at least a first opening about a first end thereof and a second opening about a second end thereof. A meter part includes a pair of pivoting catches configured to engage and grasp a sensor strip from a container containing a plurality of sensor strips. The sensor strip may thus be removed from a container for testing without need for manual handling of the strip by a user.Type: ApplicationFiled: March 13, 2013Publication date: September 18, 2014Applicant: BAYER HEALTHCARE LLCInventor: Steven C. Charlton
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Publication number: 20140262772Abstract: The present disclosure relates to an electrochemical test sensor for detecting the concentration of an analyte in a fluid sample. The test sensor includes a working electrode, a counter electrode, and a trigger electrode. A temporary protective layer overlies the trigger electrode and helps to maintain the function of the trigger electrode during test sensor manufacture.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: BAYER HEALTHCARE LLCInventors: Andrew Edelbrock, Steven C. Charlton
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Publication number: 20140244199Abstract: A method of determining auto-calibrating information of a test sensor includes providing an optical read head that includes a light source, a light guide and a detector. The read head forms an opening that is sized to receive a test sensor. The detector includes a linear-detector array or single detector. A test sensor is provided having apertures formed therein. The test sensor is placed in the opening of the optical read head. Light is transmitted from the light source through the apertures. The light transmitted through the apertures using the detector or detecting the absence of light being transmitted through the test sensor using the detector is detected. The detected light or the absence of detected light information from the detector is used to determine the auto-calibration information of the test sensor.Type: ApplicationFiled: April 9, 2014Publication date: August 28, 2014Applicant: Bayer HealthCare LLCInventors: Russell J. Micinski, Andrew J. Dosmann, Steven C. Charlton
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Publication number: 20140227771Abstract: A test meter system for testing a characteristic of a fluid, the test meter system including a test meter having a housing with an opening adapted to accept a test strip, an interrogation coil within the housing, a pick-up coil within the housing, and a test strip including at least one magneto-elastic-resonance sensor. When the test strip is within the opening, the interrogation coil may utilize magneto-elastic-resonance technology to interrogate the magneto-elastic-resonance sensor and the pick-up coil may be used to sense a resultant oscillation frequency of the magneto-elastic-resonance sensor, the resultant oscillation frequency associated with the characteristic. The test strip may include a plurality of sensors. The sensors may be coated with a coating sensitive to a characteristic of the fluid, where the interrogation reveals information about the fluid characteristic.Type: ApplicationFiled: April 17, 2014Publication date: August 14, 2014Applicant: BAYER HEALTHCARE LLCInventors: Swetha Chinnayelka, Jiangfeng Fei, Yuan Wang, Narasinha Parasnis, Hoi-Cheong Steve Sun, Raeann Gifford, Steven C. Charlton
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Publication number: 20140202881Abstract: According to one embodiment of the present invention, an electrochemical sensor (10) for detecting the concentration of analyte in a fluid test sample is disclosed. The sensor (10) includes a counter electrode having a high-resistance portion for use in detecting whether a predetermined amount of sample has been received by the test sensor.Type: ApplicationFiled: March 25, 2014Publication date: July 24, 2014Applicant: Bayer HealthCare LLCInventors: Dijia Huang, Steven C. Charlton, Suny J. George, Andrew J. Edelbrock
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Publication number: 20140193894Abstract: 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: March 10, 2014Publication date: July 10, 2014Applicant: Bayer Healthcare, LLCInventors: Sung-Kwon Jung, Steven C. Charlton, Suny J. George, Andrew J. Dosmann, Karen L. Marfurt
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Patent number: 8742327Abstract: A method of determining auto-calibrating information of a test sensor includes providing an optical read head that includes a light source, a light guide and a detector. The read head forms an opening that is sized to receive a test sensor. The detector includes a linear-detector array or single detector. A test sensor is provided having apertures formed therein. The test sensor is placed in the opening of the optical read head. Light is transmitted from the light source through the apertures. The light transmitted through the apertures using the detector or detecting the absence of light being transmitted through the test sensor using the detector is detected. The detected light or the absence of detected light information from the detector is used to determine the auto-calibration information of the test sensor.Type: GrantFiled: October 10, 2013Date of Patent: June 3, 2014Assignee: Bayer HealthCare LLCInventors: Russell J Micinski, Andrew J Dosmann, Steven C Charlton
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Publication number: 20140124382Abstract: An electrochemical test sensor for detecting the analyte concentration of a fluid test sample includes a base, a dielectric layer, a reagent layer and a lid. The base provides a flow path for the test sample having on its surface a counter electrode and a working electrode adapted to electrically communicate with a detector of electrical current. The dielectric layer forms a dielectric window therethrough. The reagent layer includes an enzyme that is adapted to react with the analyte. The lid is adapted to mate with the base and to assist in forming a capillary space with an opening for the introduction of the test sample thereto. At least a portion of the width of the counter electrode is greater than the width of the working electrode.Type: ApplicationFiled: November 1, 2013Publication date: May 8, 2014Applicant: Bayer HealthCare LLCInventors: Andrew J. Edelbrock, Steven C. Charlton
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Patent number: 8715588Abstract: 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: GrantFiled: August 26, 2013Date of Patent: May 6, 2014Assignee: Bayer HealthCare LLCInventors: Sung-Kwon Jung, Steven C. Charlton, Suny J. George, Andrew J. Dosmann, Karen L. Marfurt