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:
May 13, 2013
Date of Patent:
March 28, 2017
Assignee:
DexCom, Inc.
Inventors:
Mark Brister, James R. Petisce, Sean Saint, Kum Ming Woo, Victor Ha, John Nolting, Peter C. Simpson, James Brauker
Abstract: The present invention relates generally to systems and methods for increasing oxygen availability to implantable devices. The preferred embodiments provide a membrane system configured to provide protection of the device from the biological environment and/or a catalyst for enabling an enzymatic reaction, wherein the membrane system includes a polymer formed from a high oxygen soluble material. The high oxygen soluble polymer material is disposed adjacent to an oxygen-utilizing source on the implantable device so as to dynamically retain high oxygen availability to the oxygen-utilizing source during oxygen deficits. Membrane systems of the preferred embodiments are useful for implantable devices with oxygen-utilizing sources and/or that function in low oxygen environments, such as enzyme-based electrochemical sensors and cell transplantation devices.
Type:
Grant
Filed:
October 30, 2014
Date of Patent:
March 21, 2017
Assignee:
DexCom, Inc.
Inventors:
James R. Petisce, Mark A. Tapsak, Peter C. Simpson, Victoria Carr-Brendel, James H. Brauker
Abstract: Systems and methods for integrating a continuous glucose sensor 12, including a receiver 14, a medicament delivery device 16, a controller module, and optionally a single point glucose monitor 18 are provided. Integration may be manual, semi-automated and/or fully automated.
Type:
Grant
Filed:
October 25, 2013
Date of Patent:
March 21, 2017
Assignee:
DexCom, Inc.
Inventors:
John Michael Dobbles, Apurv Ullas Kamath, Aarthi Mahalingam, James H. Brauker
Abstract: A system is provided for monitoring analyte in a host, including a continuous analyte sensor that produces a data stream indicative of a host's analyte concentration and a device that receives and records data from the data stream from the continuous analyte sensor. In one embodiment, the device includes a single point analyte monitor, from which it obtains an analyte value, and is configured to display only single point analyte measurement values, and not any analyte measurement values associated with data received from the continuous analyte sensor. Instead, data received from the continuous analyte sensor is used to provide alarms to the user when the analyte concentration and/or the rate of change of analyte concentration, as measured by the continuous analyte sensor, is above or below a predetermined range. Data received from the continuous analyte sensor may also be used to prompt the diabetic or caregiver to take certain actions, such as to perform another single point blood glucose measurement.
Type:
Grant
Filed:
November 11, 2015
Date of Patent:
March 7, 2017
Assignee:
DexCom, Inc.
Inventors:
Jorge Valdes, David Price, Leif N. Bowman, Kristin Cote
Abstract: Systems and methods for processing sensor data and end of life detection are provided. In some embodiments, a method for determining the end of life of a continuous analyte sensor includes evaluating a plurality of risk factors using an end of life function to determine an end of life status of the sensor and providing an output related to the end of life status of the sensor. The plurality of risk factors may be selected from the list including the number of days the sensor has been in use, whether there has been a decrease in signal sensitivity, whether there is a predetermined noise pattern, whether there is a predetermined oxygen concentration pattern, and error between reference BG values and EGV sensor values.
Type:
Grant
Filed:
October 24, 2014
Date of Patent:
March 7, 2017
Assignee:
DexCom, Inc.
Inventors:
Naresh C. Bhavaraju, Arturo Garcia, Hari Hampapuram, Apurv Ullas Kamath, Aarthi Mahalingam, Dmytro Sokolovskyy, Stephen J. Vanslyke
Abstract: Methods and apparatus, including computer program products, are provided for remote monitoring. In some example implementations, there is provided a method. The method may include receiving, at a remote monitor, a notification message representative of an event detected, by a server, from analyte sensor data obtained from a receiver monitoring an analyte state of a host; presenting, at the remote monitor, the notification message to activate the remote monitor, wherein the remote monitor is configured by the server to receive the notification message to augment the receiver monitoring of the analyte state of the host; accessing, by the remote monitor, the server, in response to the presenting of the notification message; and receiving, in response to the accessing, information including at least the analyte sensor data. Related systems, methods, and articles of manufacture are also disclosed.
Type:
Grant
Filed:
March 15, 2013
Date of Patent:
March 7, 2017
Assignee:
DexCom, Inc.
Inventors:
Michael Robert Mensinger, Eric Cohen, Phil Mayou, Eli Reihman, Katherine Yerre Koehler, Rian Draeger, Angela Marie Traven
Abstract: Systems and methods for minimizing or eliminating transient non-glucose related signal noise due to non-glucose rate limiting phenomenon such as interfering species, ischemia, pH changes, temperatures changes, known or unknown sources of mechanical, electrical and/or biochemical noise, 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 processes some or the entire data stream continually or intermittently based at least in part on whether the signal artifact event has occurred.
Type:
Grant
Filed:
April 4, 2012
Date of Patent:
March 7, 2017
Assignee:
DexCom, Inc.
Inventors:
Apurv Kamath, James H. Brauker, Aarthi Mahalingam, Ying Li
Abstract: Systems and methods for integrating a continuous glucose sensor 12, including a receiver 14, a medicament delivery device 16, a controller module, and optionally a single point glucose monitor 18 are provided. Integration may be manual, semi-automated and/or fully automated.
Type:
Grant
Filed:
October 25, 2013
Date of Patent:
March 7, 2017
Assignee:
DexCom, Inc.
Inventors:
John Michael Dobbles, Apurv Ullas Kamath, Aarthi Mahalingam, James H. Brauker
Abstract: 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:
Grant
Filed:
March 26, 2010
Date of Patent:
February 28, 2017
Assignee:
DexCom, Inc.
Inventors:
Mark Brister, James R. Petisce, Peter Simpson
Abstract: Systems and methods for integrating a continuous glucose sensor 12, including a receiver 14, a medicament delivery device 16, a controller module, and optionally a single point glucose monitor 18 are provided. Integration may be manual, semi-automated and/or fully automated.
Type:
Grant
Filed:
October 25, 2013
Date of Patent:
February 21, 2017
Assignee:
DexCom, Inc.
Inventors:
John Michael Dobbles, Apurv Ullas Kamath, Aarthi Mahalingam, James H. Brauker
Abstract: Devices and methods are described for providing continuous measurement of an analyte concentration. In some embodiments, the device has a sensing mechanism and a sensing membrane that includes at least one surface-active group-containing polymer and that is located over the sensing mechanism. The sensing membrane may have a bioprotective layer configured to substantially block the effect and/or influence of non-constant noise-causing species.
Type:
Grant
Filed:
September 22, 2015
Date of Patent:
February 21, 2017
Assignee:
DexCom, Inc.
Inventors:
Robert Boock, Monica Rixman Swinney, Huashi Zhang, Michael J. Estes, Kristina Lawrence
Abstract: Systems and methods for integrating a continuous glucose sensor 12, including a receiver 14, a medicament delivery device 16, a controller module, and optionally a single point glucose monitor 18 are provided. Integration may be manual, semi-automated and/or fully automated.
Type:
Grant
Filed:
October 25, 2013
Date of Patent:
February 21, 2017
Assignee:
DexCom, Inc.
Inventors:
John Michael Dobbles, Apurv Ullas Kamath, Aarthi Mahalingam, James H. Brauker
Abstract: Devices and methods are described for providing continuous measurement of an analyte concentration. In some embodiments, the device has a sensing mechanism and a sensing membrane that includes at least one surface-active group-containing polymer and that is located over the sensing mechanism. The sensing membrane may have a bioprotective layer configured to substantially block the effect and/or influence of non-constant noise-causing species.
Type:
Grant
Filed:
October 17, 2014
Date of Patent:
February 14, 2017
Assignee:
DexCom, Inc.
Inventors:
Robert J. Boock, Monica A. Rixman, Huashi Zhang, Michael J. Estes, Kristina Lawrence
Abstract: Devices and methods are described for providing continuous measurement of an analyte concentration. In some embodiments, the devices include a membrane that has an interference domain designed to reduce the permeation of one or more interferents.
Type:
Grant
Filed:
August 24, 2012
Date of Patent:
January 24, 2017
Assignee:
DexCom, Inc.
Inventors:
Jonathan Hughes, Robert J. Boock, Chris W. Dring
Abstract: Membrane systems incorporating silicone polymers are described for use in implantable analyte sensors. Some layers of the membrane system may comprise a blend of a silicone polymer with a hydrophilic polymer, for example, a triblock poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) polymer. Such polymeric blends provide for both high oxygen solubility and aqueous analyte solubility.
Inventors:
Esteban Cabrera, Jr., Katherine Yerre Koehler, Brian C. Smith, Eric Cohen, Rian Draeger, Paul Kramer, Paul Noble-Campbell, Eli Reihman, Leif Bowman
Inventors:
Esteban Cabrera, Jr., Katherine Yerre Koehler, Brian C. Smith, Eric Cohen, Rian Draeger, Paul Kramer, Paul Noble-Campbell, Eli Reihman, Leif Bowman
Inventors:
Michael Robert Mensinger, Eric Cohen, Phil Mayou, Eli Reihman, Katherine Yerre Koehler, Rian Draeger, Angela Marie Traven, Sheryl Sadsarin Gaano