Patents Assigned to DexCom, Inc.
  • Patent number: 8053018
    Abstract: The invention provides an implantable membrane for regulating the transport of analytes therethrough that includes a matrix including a first polymer; and a second polymer dispersed throughout the matrix, wherein the second polymer forms a network of microdomains which when hydrated are not observable using photomicroscopy at 400× magnification or less. In one aspect, the homogeneous membrane of the present invention has hydrophilic domains dispersed substantially throughout a hydrophobic matrix to provide an optimum balance between oxygen and glucose transport to an electrochemical glucose sensor.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: November 8, 2011
    Assignee: DexCom, Inc.
    Inventors: Mark A. Tapsak, Rathbun K. Rhodes, Mark C. Shults, Jason D. McClure
  • Patent number: 8052601
    Abstract: 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: Grant
    Filed: August 20, 2008
    Date of Patent: November 8, 2011
    Assignee: DexCom, Inc.
    Inventors: Paul V. Goode, Jr., James H. Brauker, Apurv U. Kamath
  • Publication number: 20110270062
    Abstract: Systems and methods for minimizing or eliminating transient non-glucose related signal noise due to non-glucose rate limiting phenomenon such as ischemia, pH changes, temperatures changes, and the like. The system monitors a data stream from a glucose sensor and detects signal artifacts that have higher amplitude than electronic or diffusion-related system noise. The system replaces some or the entire data stream continually or intermittently including signal estimation methods that particularly address transient signal artifacts. The system is also capable of detecting the severity of the signal artifacts and selectively applying one or more signal estimation algorithm factors responsive to the severity of the signal artifacts, which includes selectively applying distinct sets of parameters to a signal estimation algorithm or selectively applying distinct signal estimation algorithms.
    Type: Application
    Filed: July 12, 2011
    Publication date: November 3, 2011
    Applicant: DexCom, Inc.
    Inventors: Paul V. Goode, JR., James H. Brauker, Apurv U. Kamath, James Patrick Thrower, Victoria Carr-Brendel
  • Publication number: 20110270158
    Abstract: Systems and methods for integrating a continuous glucose sensor, including a receiver, a medicament delivery device, and optionally a single point glucose monitor are provided. Manual integrations provide for a physical association between the devices wherein a user (for example, patient or doctor) manually selects the amount, type, and/or time of delivery. Semi-automated integration of the devices includes integrations wherein an operable connection between the integrated components aids the user (for example, patient or doctor) in selecting, inputting, calculating, or validating the amount, type, or time of medicament delivery of glucose values, for example, by transmitting data to another component and thereby reducing the amount of user input required. Automated integration between the devices includes integrations wherein an operable connection between the integrated components provides for full control of the system without required user interaction.
    Type: Application
    Filed: July 11, 2011
    Publication date: November 3, 2011
    Applicant: DexCom, Inc.
    Inventors: James H. Brauker, Mark A. Tapsak, Sean T. Saint, Apurv U. Kamath, Paul V. Neale, Peter C. Simpson, Michael Robert Mensinger, Dubravka Markovic
  • Patent number: 8050731
    Abstract: The invention provides an implantable membrane for regulating the transport of analytes therethrough that includes a matrix including a first polymer; and a second polymer dispersed throughout the matrix, wherein the second polymer forms a network of microdomains which when hydrated are not observable using photomicroscopy at 400× magnification or less. In one aspect, the homogeneous membrane of the present invention has hydrophilic domains dispersed substantially throughout a hydrophobic matrix to provide an optimum balance between oxygen and glucose transport to an electrochemical glucose sensor.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: November 1, 2011
    Assignee: DexCom, Inc.
    Inventors: Mark A. Tapsak, Rathbun K. Rhodes, Mark C. Shults, Jason D. McClure
  • Publication number: 20110263958
    Abstract: 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: Application
    Filed: July 1, 2011
    Publication date: October 27, 2011
    Applicant: DexCom, Inc.
    Inventors: James H. Brauker, Victoria Carr-Brendel, Paul V. Goode, Apurv U. Kamath, James P. Thrower, Ben Xavier
  • Publication number: 20110257895
    Abstract: 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 measurement of glucose in a host.
    Type: Application
    Filed: June 29, 2011
    Publication date: October 20, 2011
    Applicant: DexCom, Inc.
    Inventors: James H. Brauker, Apurv Ullas Kamath, Paul Goode, Mark Brister
  • Publication number: 20110253533
    Abstract: Devices and methods for determining analyte levels are described. The devices and methods allow for the implantation of analyte-monitoring devices, such as glucose monitoring devices, that result in the delivery of a dependable flow of blood to deliver sample to the implanted device. The devices comprise a unique microarchitectural arrangement in the sensor region that allows accurate data to be obtained over long periods of time.
    Type: Application
    Filed: June 22, 2011
    Publication date: October 20, 2011
    Applicant: DexCom, Inc.
    Inventors: Mark C. Shults, Stuart J. Updike, Rathbun K. Rhodes
  • Publication number: 20110231141
    Abstract: 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: Application
    Filed: May 31, 2011
    Publication date: September 22, 2011
    Applicant: DexCom, Inc.
    Inventors: Paul V. Goode, JR., James H. Brauker, Apurv U. Kamath, James P. Thrower
  • Publication number: 20110231107
    Abstract: 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 measurement of glucose in a host.
    Type: Application
    Filed: May 26, 2011
    Publication date: September 22, 2011
    Applicant: DexCom, Inc.
    Inventors: James H. Brauker, Apurv Ullas Kamath, Paul Goode, Mark Brister
  • Publication number: 20110231142
    Abstract: 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: Application
    Filed: May 31, 2011
    Publication date: September 22, 2011
    Applicant: DexCom, Inc.
    Inventors: Paul V. Goode, JR., James H. Brauker, Apurv U. Kamath
  • Publication number: 20110231140
    Abstract: 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: Application
    Filed: May 31, 2011
    Publication date: September 22, 2011
    Applicant: DexCom, Inc.
    Inventors: Paul V. Goode, JR., James H. Brauker, Apurv U. Kamath
  • Publication number: 20110218414
    Abstract: 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 processing sensor data, including calculating a rate of change of sensor data and/or determining an acceptability of sensor or reference data.
    Type: Application
    Filed: April 5, 2011
    Publication date: September 8, 2011
    Applicant: DexCom, Inc.
    Inventors: Apurv Kamath, Ying Li
  • Patent number: 8010174
    Abstract: Systems and methods for minimizing or eliminating transient non-glucose related signal noise due to non-glucose rate limiting phenomenon such as ischemia, pH changes, temperatures changes, and the like. The system monitors a data stream from a glucose sensor and detects signal artifacts that have higher amplitude than electronic or diffusion-related system noise. The system replaces some or the entire data stream continually or intermittently including signal estimation methods that particularly address transient signal artifacts. The system is also capable of detecting the severity of the signal artifacts and selectively applying one or more signal estimation algorithm factors responsive to the severity of the signal artifacts, which includes selectively applying distinct sets of parameters to a signal estimation algorithm or selectively applying distinct signal estimation algorithms.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: August 30, 2011
    Assignee: DexCom, Inc.
    Inventors: Paul V. Goode, Jr., James H. Brauker, Apurv U. Kamath, James Patrick Thrower, Victoria Carr-Brendel
  • Patent number: 8005525
    Abstract: Systems and methods for minimizing or eliminating transient non-glucose related signal noise due to non-glucose rate limiting phenomenon such as ischemia, pH changes, temperatures changes, and the like. The system monitors a data stream from a glucose sensor and detects signal artifacts that have higher amplitude than electronic or diffusion-related system noise. The system replaces some or the entire data stream continually or intermittently including signal estimation methods that particularly address transient signal artifacts. The system is also capable of detecting the severity of the signal artifacts and selectively applying one or more signal estimation algorithm factors responsive to the severity of the signal artifacts, which includes selectively applying distinct sets of parameters to a signal estimation algorithm or selectively applying distinct signal estimation algorithms.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: August 23, 2011
    Assignee: DexCom, Inc.
    Inventors: Paul V. Goode, Jr., James H. Brauker, Apurv U. Kamath, James Patrick Thrower, Victoria Carr-Brendel
  • Patent number: 8005524
    Abstract: 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: Grant
    Filed: March 24, 2010
    Date of Patent: August 23, 2011
    Assignee: DexCom, Inc.
    Inventors: James H. Brauker, Victoria Carr-Brendel, Paul V. Goode, Apurv U. Kamath, James P. Thrower, Ben Xavier
  • Publication number: 20110201911
    Abstract: This disclosure provides systems, methods and apparatus for processing, transmitting and displaying data received from an analyte sensor, such as a glucose sensor. The system may include a display device with at least one input device. In response to movement of or along the input device, the display device may change a glucose data output parameter and update an output of the display device using the changed output parameter.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 18, 2011
    Applicant: Dexcom, Inc.
    Inventors: Eric Johnson, Michael Robert Mensinger, Peter C. Simpson, Thomas Hall, Hari Hampapuram, Kostyantyn Snisarenko, Eli Reihman, Holly Chico, Kassandra Costatine
  • Patent number: 7998071
    Abstract: Systems and methods for minimizing or eliminating transient non-glucose related signal noise due to non-glucose rate limiting phenomenon such as ischemia, pH changes, temperatures changes, and the like. The system monitors a data stream from a glucose sensor and detects signal artifacts that have higher amplitude than electronic or diffusion-related system noise. The system replaces some or the entire data stream continually or intermittently including signal estimation methods that particularly address transient signal artifacts. The system is also capable of detecting the severity of the signal artifacts and selectively applying one or more signal estimation algorithm factors responsive to the severity of the signal artifacts, which includes selectively applying distinct sets of parameters to a signal estimation algorithm or selectively applying distinct signal estimation algorithms.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: August 16, 2011
    Assignee: DexCom, Inc.
    Inventors: Paul V. Goode, Jr., James H. Brauker, Apurv U. Kamath, James Patrick Thrower, Victoria Carr-Brendel
  • Patent number: 8000901
    Abstract: 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 measurement of glucose in a host.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: August 16, 2011
    Assignee: DexCom, Inc.
    Inventors: James H. Brauker, Apurv Ullas Kamath, Paul V. Goode, Mark C. Brister
  • Publication number: 20110190614
    Abstract: 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 measurement of glucose in a host.
    Type: Application
    Filed: April 13, 2011
    Publication date: August 4, 2011
    Applicant: DexCom, Inc.
    Inventors: Mark Brister, Paul V. Neale, James R. Petisce, James Patrick Thrower, Sean Saint, John Nolting