公开(公告)号：US20210194542A1

公开(公告)日：2021-06-24

申请号：US17191172

申请日：2021-03-03

Applicant: DexCom, Inc.

Inventor： Thomas Miller ,  Mark Dervaes ,  Phong Lieu ,  Peter C. Simpson ,  Shawn Larvenz ,  Jacob S. Leach ,  Sebastian Bohm

IPC: H04B5/00 ,  H04W76/14 ,  A61B5/145 ,  A61B5/1486 ,  A61B5/1495 ,  G01N27/327 ,  H04W12/06 ,  H04W4/80 ,  H04W52/02

Abstract: Systems and methods for processing, transmitting and displaying data received from an analyte sensor, such as a glucose sensor, are disclosed. In an embodiment, a method for transmitting data between a first communication device associated with an analyte sensor and a second communication device configured to provide user access to sensor-related information comprises: activating a transceiver of a first communication device associated with an analyte sensor at a first time; and establishing a two-way communication channel with the second communication device; wherein the activating comprises waking the transceiver from a low power sleep mode using a forced wakeup from the second communication device.

公开(公告)号：US20210038128A1

公开(公告)日：2021-02-11

申请号：US17078609

申请日：2020-10-23

Applicant: DexCom, Inc.

Inventor： Sebastian Bohm ,  Daiting Rong ,  Peter C. Simpson

IPC: A61B5/1495 ,  G01N27/327 ,  A61B5/145 ,  A61B5/1486 ,  A61B5/00 ,  G01D18/00 ,  G01N27/02 ,  G01N33/49 ,  A61B5/1473

Abstract: Systems and methods for processing sensor data and self-calibration are provided. In some embodiments, systems and methods are provided which are capable of calibrating a continuous analyte sensor based on an initial sensitivity, and then continuously performing self-calibration without using, or with reduced use of, reference measurements. In certain embodiments, a sensitivity of the analyte sensor is determined by applying an estimative algorithm that is a function of certain parameters. Also described herein are systems and methods for determining a property of an analyte sensor using a stimulus signal. The sensor property can be used to compensate sensor data for sensitivity drift, or determine another property associated with the sensor, such as temperature, sensor membrane damage, moisture ingress in sensor electronics, and scaling factors.

公开(公告)号：US10908114B2

公开(公告)日：2021-02-02

申请号：US14567293

申请日：2014-12-11

Applicant: DexCom, Inc.

Inventor： Michael J. Estes ,  Jennifer Blackwell ,  Sebastian Bohm ,  Robert J. Boock ,  Jack Pryor ,  Peter C. Simpson ,  Matthew D. Wightlin

IPC: A61B5/145 ,  G01N27/403 ,  A61B5/1486 ,  A61B5/1495

Abstract: Systems and methods for compensating for effects of temperature on implantable sensors are provided. In some embodiments, systems and methods are provided for measuring a temperature to determine a change in temperature in a sensor environment. In certain embodiments, a temperature compensation factor is determined based on a change in temperature of the sensor environment. The temperature compensation factor can be used in processing raw data of an analyte signal to report a more accurate analyte concentration.

公开(公告)号：US20210015407A1

公开(公告)日：2021-01-21

申请号：US16929906

申请日：2020-07-15

Applicant: DexCom, Inc.

Inventor： Sebastian Bohm ,  Wenjie Lan ,  Thomas Robert Porter ,  Daiting Rong ,  Jason Halac

IPC: A61B5/145 ,  A61B5/1468 ,  C09D133/08 ,  C09D5/00 ,  C09D135/02 ,  C09D181/08 ,  C09D185/02

Abstract: Various examples are directed to a glucose sensor comprising a working electrode to support an oxidation reaction and a reference electrode to support a redox reaction. The reference electrode may comprise silver and silver chloride. The Glucose sensor may also comprise an anti-mineralization agent positioned at the reference electrode to reduce formation of calcium carbonate at the reference electrode.

公开(公告)号：US20200214565A1

公开(公告)日：2020-07-09

申请号：US16823167

申请日：2020-03-18

Applicant: DexCom, Inc.

Inventor： Thomas Miller ,  Mark Dervaes ,  Phong Lieu ,  Peter C. Simpson ,  Shawn Larvenz ,  Jacob S. Leach ,  Sebastian Bohm

IPC: A61B5/00 ,  G16H40/40 ,  A61B5/1486 ,  A61B5/145 ,  A61B5/07 ,  G16H40/20 ,  G16H30/20 ,  G16H40/67

Abstract: Systems and methods for processing, transmitting and displaying data received from an analyte sensor, such as a glucose sensor, are disclosed. In an embodiment, a method for transmitting data between a first communication device associated with an analyte sensor and a second communication device configured to provide user access to sensor-related information comprises: activating a transceiver of a first communication device associated with an analyte sensor at a first time; and establishing a two-way communication channel with the second communication device; wherein the activating comprises waking the transceiver from a low power sleep mode using a forced wakeup from the second communication device.

公开(公告)号：US20200205701A1

公开(公告)日：2020-07-02

申请号：US16728676

申请日：2019-12-27

Applicant: DexCom, Inc.

Inventor： Sebastian Bohm ,  Anna Claire Harley-Trochimczyk ,  Daiting Rong ,  Rui Ma ,  Wenjie Lan ,  Minglian Shi ,  Disha B. Sheth ,  Nicholas Kalfas

IPC: A61B5/1495 ,  A61B5/145 ,  A61B5/1486

Abstract: Various examples described herein are directed to systems and methods for determining an analyte concentration using an analyte sensor. A method may comprise disconnecting an analyte sensor from a measurement circuit and reconnecting the analyte sensor to the measurement circuit after an accumulation period. The method may comprise receiving a signal from the analyte sensor. The signal may be indicative of an amount of charge accumulated on the analyte sensor during the accumulation period. The method may also comprise determining an estimated analyte concentration level based on the received signal.

公开(公告)号：US20200205694A1

公开(公告)日：2020-07-02

申请号：US16728652

申请日：2019-12-27

Applicant: DexCom, Inc.

Inventor： Sebastian Bohm ,  Anna Claire Harley-Trochimczyk ,  Daiting Rong ,  Rui Ma ,  Wenjie Lan ,  Minglian Shi ,  Disha B. Sheth

IPC: A61B5/053 ,  G01N33/487

Abstract: Various examples are directed to systems and methods for operating an analyte sensor system using sensor electronics. An example method may comprise applying a bias voltage change to an analyte sensor bias voltage and measuring a current value for each of a plurality of time periods after application of the bias voltage change. The example method may also comprise determining an estimated impedance using the current values for the plurality of time periods and determining a characteristic of the analyte sensor using the estimated impedance. The example method may further comprise receiving from the analyte sensor a signal indicative of an analyte concentration, and determining an estimated analyte concentration level using the determined characteristic of the analyte sensor and the received signal.

公开(公告)号：US20190336053A1

公开(公告)日：2019-11-07

申请号：US16400873

申请日：2019-05-01

Applicant: DexCom, Inc.

Inventor： Jason Halac ,  Sebastian Bohm ,  Vincent Peter Crabtree ,  David DeRenzy ,  Mark S. Dervaes ,  Nicholas Kalfas ,  Zebediah L. McDaniel ,  Michael Levozier Moore ,  Todd Andrew Newhouse ,  Michael A. Ploof ,  Stephen Alan Reichert ,  Peter C. Simpson ,  Alexander Leroy Teeter ,  Rodolfo Garcia ,  Jaroslav Piotrowiak ,  Thomas George O'Connell ,  Arlene G. Doria

IPC: A61B5/145 ,  A61B5/1455

Abstract: Various analyte sensor systems for controlling activation of analyte sensor electronics circuitry are provided. Related methods for controlling analyte sensor electronics circuitry are also provided. Various analyte sensor systems for monitoring an analyte in a host are also provided. Various circuits for controlling activation of an analyte sensor system are also provided. Analyte sensor systems utilizing a state machine having a plurality of states for collecting a plurality of digital counts and waking a controller responsive to a wake up signal are also provided. Related methods for such analyte sensor systems are also provided. Systems for controlling activation of analyte sensor electronics circuitry utilizing a magnetic sensor are further provided. One or more display device configured to display one or more analyte concentration values are also provided.

公开(公告)号：US20190167169A1

公开(公告)日：2019-06-06

申请号：US16259930

申请日：2019-01-28

Applicant: DexCom, Inc.

Inventor： Sebastian Bohm ,  Mark Dervaes ,  Eric Johnson ,  Apurv Ullas Kamath ,  Shawn Larvenz ,  Jacob S. Leach ,  Phong Lieu ,  Aarthi Mahalingam ,  Tom Miller ,  Paul V. Neale ,  Jack Pryor ,  Thomas A. Peyser ,  Daiting Rong ,  Kenneth San Vicente ,  Mohammad Ali Shariati ,  Peter C. Simpson ,  Matthew Wightlin

IPC: A61B5/145 ,  G06F1/3203

Abstract: The present invention relates generally to systems and methods for processing, transmitting, and displaying data received from continuous analyte sensor, such as a glucose sensor. In some embodiments, the continuous analyte sensor system comprises a sensor electronics module that includes power saving features. One feature includes a low power measurement circuit that can be switched between a measurement mode and a low power mode, in which charging circuitry continues to apply power to electrodes of a sensor during the low power mode. In addition, the sensor electronics module can be switched between in a low power storage mode higher power operational mode via a switch. The switch can include a reed switch or optical switch, for example. A validation routine can also be implemented to ensure an interrupt signal sent from the switch is valid. The continuous analyte sensor can be physically connected to a sensor electronics module, which is in direct wireless communication with a plurality of different display devices.

公开(公告)号：US20180199886A1

公开(公告)日：2018-07-19

申请号：US15872280

申请日：2018-01-16

Applicant: DexCom, Inc.

Inventor： Sebastian Bohm ,  Pradnya Prakash Samant ,  Jiong Zou

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1486

CPC classification number: A61B5/6848 ,  A61B5/14532 ,  A61B5/14865

Abstract: Sensor devices including dissolvable tissue-piercing tips are provided. Methods of using and fabricating sensor devices are also provided.