Patents Assigned to DexCom, Inc.
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Publication number: 20090043181Abstract: Systems and methods for dynamically and intelligently estimating analyte data from a continuous analyte sensor, including receiving a data stream, selecting one of a plurality of algorithms, and employing the selected algorithm to estimate analyte values. Additional data processing includes evaluating the selected estimative algorithms, analyzing a variation of the estimated analyte values based on statistical, clinical, or physiological parameters, comparing the estimated analyte values with corresponding measure analyte values, and providing output to a user. Estimation can be used to compensate for time lag, match sensor data with corresponding reference data, warn of upcoming clinical risk, replace erroneous sensor data signals, and provide more timely analyte information encourage proactive behavior and preempt clinical risk.Type: ApplicationFiled: October 16, 2008Publication date: February 12, 2009Applicant: DexCom, Inc.Inventors: James H. Brauker, Victoria Carr-Brendel, Paul V. Goode, Apurv U. Kamath, James P. Thrower, Ben Xavier
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Publication number: 20090043182Abstract: Systems and methods for dynamically and intelligently estimating analyte data from a continuous analyte sensor, including receiving a data stream, selecting one of a plurality of algorithms, and employing the selected algorithm to estimate analyte values. Additional data processing includes evaluating the selected estimative algorithms, analyzing a variation of the estimated analyte values based on statistical, clinical, or physiological parameters, comparing the estimated analyte values with corresponding measure analyte values, and providing output to a user. Estimation can be used to compensate for time lag, match sensor data with corresponding reference data, warn of upcoming clinical risk, replace erroneous sensor data signals, and provide more timely analyte information encourage proactive behavior and preempt clinical risk.Type: ApplicationFiled: October 16, 2008Publication date: February 12, 2009Applicant: DexCom, Inc.Inventors: James H. Brauker, Victoria Carr-Brendel, Paul V. Goode, Apurv U. Kamath, James P. Thrower, Ben Xavier
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Publication number: 20090043541Abstract: Systems and methods for dynamically and intelligently estimating analyte data from a continuous analyte sensor, including receiving a data stream, selecting one of a plurality of algorithms, and employing the selected algorithm to estimate analyte values. Additional data processing includes evaluating the selected estimative algorithms, analyzing a variation of the estimated analyte values based on statistical, clinical, or physiological parameters, comparing the estimated analyte values with corresponding measure analyte values, and providing output to a user. Estimation can be used to compensate for time lag, match sensor data with corresponding reference data, warn of upcoming clinical risk, replace erroneous sensor data signals, and provide more timely analyte information encourage proactive behavior and preempt clinical risk.Type: ApplicationFiled: October 16, 2008Publication date: February 12, 2009Applicant: DexCom, Inc.Inventors: James H. Brauker, Victoria Carr-Brendel, Paul V. Goode, Apurv U. Kamath, James P. Thrower, Ben Xavier
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Publication number: 20090043525Abstract: Systems and methods for dynamically and intelligently estimating analyte data from a continuous analyte sensor, including receiving a data stream, selecting one of a plurality of algorithms, and employing the selected algorithm to estimate analyte values. Additional data processing includes evaluating the selected estimative algorithms, analyzing a variation of the estimated analyte values based on statistical, clinical, or physiological parameters, comparing the estimated analyte values with corresponding measure analyte values, and providing output to a user. Estimation can be used to compensate for time lag, match sensor data with corresponding reference data, warn of upcoming clinical risk, replace erroneous sensor data signals, and provide more timely analyte information encourage proactive behavior and preempt clinical risk.Type: ApplicationFiled: October 16, 2008Publication date: February 12, 2009Applicant: DexCom, Inc.Inventors: James H. Brauker, Victoria Carr-Brendel, Paul V. Goode, Apurv U. Kamath, James P. Thrower, Ben Xavier
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Publication number: 20090036758Abstract: Systems and methods for dynamically and intelligently estimating analyte data from a continuous analyte sensor, including receiving a data stream, selecting one of a plurality of algorithms, and employing the selected algorithm to estimate analyte values. Additional data processing includes evaluating the selected estimative algorithms, analyzing a variation of the estimated analyte values based on statistical, clinical, or physiological parameters, comparing the estimated analyte values with corresponding measure analyte values, and providing output to a user. Estimation can be used to compensate for time lag, match sensor data with corresponding reference data, warn of upcoming clinical risk, replace erroneous sensor data signals, and provide more timely analyte information encourage proactive behavior and preempt clinical risk.Type: ApplicationFiled: October 16, 2008Publication date: February 5, 2009Applicant: DexCom, Inc.Inventors: James H. Brauker, Victoria E. Carr-Brendel, Paul V. Goode, Apurv U. Kamath, James P. Thrower, Ben Xavier
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Publication number: 20090036763Abstract: The present invention relates generally to biointerface membranes utilized with implantable devices, such as devices for the detection of analyte concentrations in a biological sample. More particularly, the invention relates to novel biointerface membranes, to devices and implantable devices including these membranes, methods for forming the biointerface membranes on or around the implantable devices, and to methods for monitoring glucose levels in a biological fluid sample using an implantable analyte detection device.Type: ApplicationFiled: October 14, 2008Publication date: February 5, 2009Applicant: DexCom, Inc.Inventors: James H. Brauker, Peter C. Simpson, Robert Boock, Monica Rixman, Mark Brister
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Publication number: 20090030294Abstract: An implantable analyte sensor including a sensing region for measuring the analyte and a non-sensing region for immobilizing the sensor body in the host. The sensor is implanted in a precisely dimensioned pocket to stabilize the analyte sensor in vivo and enable measurement of the concentration of the analyte in the host before and after formation of a foreign body capsule around the sensor. The sensor further provides a transmitter for RF transmission through the sensor body, electronic circuitry, and a power source optimized for long-term use in the miniaturized sensor body.Type: ApplicationFiled: October 7, 2008Publication date: January 29, 2009Applicant: DexCom, Inc.Inventors: James R. Petisce, Mark Brister, Mark Shults, James H. Brauker, Paul V. Neale
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Publication number: 20090018424Abstract: Systems and methods of use for continuous analyte measurement of a host's vascular system are provided. In some embodiments, a continuous glucose measurement system includes a vascular access device, a sensor and sensor electronics, the system being configured for insertion into communication with a host's circulatory system.Type: ApplicationFiled: March 25, 2008Publication date: January 15, 2009Applicant: DexCom, Inc.Inventors: Apurv Ullas Kamath, Jacob S. Leach, Ying Li, Daiting Rong, Sean Saint, Peter C. Simpson, Mark Brister
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Publication number: 20090012379Abstract: Systems and methods for processing sensor analyte data, including initiating calibration, updating calibration, evaluating clinical acceptability of reference and sensor analyte data, and evaluating the quality of sensor calibration. During initial calibration, the analyte sensor data is evaluated over a period of time to determine stability of the sensor. The sensor may be calibrated using a calibration set of one or more matched sensor and reference analyte data pairs. The calibration may be updated after evaluating the calibration set for best calibration based on inclusion criteria with newly received reference analyte data. Fail-safe mechanisms are provided based on clinical acceptability of reference and analyte data and quality of sensor calibration. Algorithms provide for optimized prospective and retrospective analysis of estimated blood analyte data from an analyte sensor.Type: ApplicationFiled: August 20, 2008Publication date: January 8, 2009Applicant: DexCom, Inc.Inventors: Paul V. Goode, JR., James H. Brauker, Apurv U. Kamath
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Patent number: 7471972Abstract: The present invention provides a sensor head for use in an implantable device that measures the concentration of an analyte in a biological fluid which includes: a non-conductive body; a working electrode, a reference electrode and a counter electrode, wherein the electrodes pass through the non-conductive body forming an electrochemically reactive surface at one location on the body and forming an electronic connection at another location on the body, further wherein the electrochemically reactive surface of the counter electrode is greater than the surface area of the working electrode; and a multi-region membrane affixed to the nonconductive body and covering the working electrode, reference electrode and counter electrode. In addition, the present invention provides an implantable device including at least one of the sensor heads of the invention and methods of monitoring glucose levels in a host utilizing the implantable device of the invention.Type: GrantFiled: December 22, 2004Date of Patent: December 30, 2008Assignee: DexCom, Inc.Inventors: Rathbun Rhodes, Mark A. Tapsak, James H. Brauker, Mark C. Shults
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Patent number: 7467003Abstract: Disclosed herein are systems and methods for a continuous analyte sensor, such as a continuous glucose sensor. One such system utilizes first and second working electrodes to measure additional analyte or non-analyte related signal. Such measurements may provide a background and/or sensitivity measurement(s) for use in processing sensor data and may be used to trigger events such as digital filtering of data or suspending display of data.Type: GrantFiled: October 4, 2006Date of Patent: December 16, 2008Assignee: DexCom, Inc.Inventors: Mark Brister, James R. Petisce, Peter Simpson
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Publication number: 20080306434Abstract: An integrated system for the monitoring and treating diabetes is provided, including an integrated receiver/hand-held medicament injection pen, including electronics, for use with a continuous glucose sensor. In some embodiments, the receiver is configured to receive continuous glucose sensor data, to calculate a medicament therapy (e.g., via the integrated system electronics) and to automatically set a bolus dose of the integrated hand-held medicament injection pen, whereby the user can manually inject the bolus dose of medicament into the host. In some embodiments, the integrated receiver and hand-held medicament injection pen are integrally formed, while in other embodiments they are detachably connected and communicated via mutually engaging electrical contacts and/or via wireless communication.Type: ApplicationFiled: June 5, 2008Publication date: December 11, 2008Applicant: DexCom, Inc.Inventors: John Michael Dobbles, Nelson Quintana, Apurv U. Kamath, Richard C. Yang, Mark C. Brister
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Publication number: 20080306444Abstract: An integrated system for the monitoring and treating diabetes is provided, including an integrated receiver/hand-held medicament injection pen, including electronics, for use with a continuous glucose sensor. In some embodiments, the receiver is configured to receive continuous glucose sensor data, to calculate a medicament therapy (e.g., via the integrated system electronics) and to automatically set a bolus dose of the integrated hand-held medicament injection pen, whereby the user can manually inject the bolus dose of medicament into the host. In some embodiments, the integrated receiver and hand-held medicament injection pen are integrally formed, while in other embodiments they are detachably connected and communicated via mutually engaging electrical contacts and/or via wireless communication.Type: ApplicationFiled: June 5, 2008Publication date: December 11, 2008Applicant: DexCom, Inc.Inventors: Mark C. Brister, Nelson Quintana, Richard C. Yang, Apurv U. Kamath, Jacob S. Leach
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Publication number: 20080306435Abstract: An integrated system for the monitoring and treating diabetes is provided, including an integrated receiver/hand-held medicament injection pen, including electronics, for use with a continuous glucose sensor. In some embodiments, the receiver is configured to receive continuous glucose sensor data, to calculate a medicament therapy (e.g., via the integrated system electronics) and to automatically set a bolus dose of the integrated hand-held medicament injection pen, whereby the user can manually inject the bolus dose of medicament into the host. In some embodiments, the integrated receiver and hand-held medicament injection pen are integrally formed, while in other embodiments they are detachably connected and communicated via mutually engaging electrical contacts and/or via wireless communication.Type: ApplicationFiled: June 5, 2008Publication date: December 11, 2008Applicant: DexCom, Inc.Inventors: Apurv U. Kamath, Richard C. Yang, Jacob S. Leach, Nelson Quintana
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Publication number: 20080306368Abstract: Systems and methods for processing sensor analyte data, including initiating calibration, updating calibration, evaluating clinical acceptability of reference and sensor analyte data, and evaluating the quality of sensor calibration. During initial calibration, the analyte sensor data is evaluated over a period of time to determine stability of the sensor. The sensor may be calibrated using a calibration set of one or more matched sensor and reference analyte data pairs. The calibration may be updated after evaluating the calibration set for best calibration based on inclusion criteria with newly received reference analyte data. Fail-safe mechanisms are provided based on clinical acceptability of reference and analyte data and quality of sensor calibration. Algorithms provide for optimized prospective and retrospective analysis of estimated blood analyte data from an analyte sensor.Type: ApplicationFiled: August 21, 2008Publication date: December 11, 2008Applicant: DexCom, Inc.Inventors: Paul V. Goode, JR., James H. Brauker, Apurv U. Kamath
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Publication number: 20080296155Abstract: The present invention relates generally to systems and methods for measuring an analyte in a host. More particularly, the present invention relates to systems and methods for transcutaneous and subcutaneous measurement of glucose in a host.Type: ApplicationFiled: May 1, 2008Publication date: December 4, 2008Applicant: DEXCOM, INC.Inventors: Mark C. Shults, Rathburn K. Rhodes, Stuart J. Updike, James H. Brauker
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Patent number: 7460898Abstract: Disclosed herein are systems and methods for a continuous analyte sensor, such as a continuous glucose sensor. One such system utilizes first and second working electrodes to measure additional analyte or non-analyte related signal. Such measurements may provide a background and/or sensitivity measurement(s) for use in processing sensor data and may be used to trigger events such as digital filtering of data or suspending display of data.Type: GrantFiled: October 4, 2006Date of Patent: December 2, 2008Assignee: DexCom, Inc.Inventors: Mark Brister, Sean Saint, James R. Petisce, Curtis Hanson, Peter Simpson, Jack Pryor
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Publication number: 20080287764Abstract: A system is provided for monitoring glucose in a host, including a continuous glucose sensor that produces a data stream indicative of a host's glucose concentration and an integrated receiver that receives the data stream from the continuous glucose sensor and calibrates the data stream using a single point glucose monitor that is integral with the integrated receiver. The integrated receiver obtains a glucose value from the single point glucose monitor, calibrates the sensor data stream received from the continuous glucose sensor, and displays one or both of the single point glucose measurement values and the calibrated continuous glucose sensor values on the user interface.Type: ApplicationFiled: July 29, 2008Publication date: November 20, 2008Applicant: DexCom, Inc.Inventors: Andrew Rasdal, James H. Brauker, Paul V. Neale, Peter C. Simpson
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Publication number: 20080287766Abstract: A system is provided for monitoring glucose in a host, including a continuous glucose sensor that produces a data stream indicative of a host's glucose concentration and an integrated receiver that receives the data stream from the continuous glucose sensor and calibrates the data stream using a single point glucose monitor that is integral with the integrated receiver. The integrated receiver obtains a glucose value from the single point glucose monitor, calibrates the sensor data stream received from the continuous glucose sensor, and displays one or both of the single point glucose measurement values and the calibrated continuous glucose sensor values on the user interface.Type: ApplicationFiled: July 29, 2008Publication date: November 20, 2008Applicant: DexCom, Inc.Inventors: Andrew Rasdal, James H. Brauker, Paul V. Neale, Peter C. Simpson
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Publication number: 20080287765Abstract: A system is provided for monitoring glucose in a host, including a continuous glucose sensor that produces a data stream indicative of a host's glucose concentration and an integrated receiver that receives the data stream from the continuous glucose sensor and calibrates the data stream using a single point glucose monitor that is integral with the integrated receiver. The integrated receiver obtains a glucose value from the single point glucose monitor, calibrates the sensor data stream received from the continuous glucose sensor, and displays one or both of the single point glucose measurement values and the calibrated continuous glucose sensor values on the user interface.Type: ApplicationFiled: July 29, 2008Publication date: November 20, 2008Applicant: DexCom, Inc.Inventors: Andrew Rasdal, James H. Brauker, Paul V. Neale, Peter C. Simpson