SYSTEMS AND METHODS FOR DISPLAY DEVICE AND SENSOR ELECTRONICS UNIT COMMUNICATION

• US 20170281000A1
• Filed: 03/28/2017
• Published: 10/05/2017
• Est. Priority Date: 03/31/2016
• Status: Active Grant

• Current Assignee: DexCom Incorporated
• Original Assignee: DexCom Incorporated
• Inventors: Wedekind, Jeffrey R., Burnette, Douglas William, Mandapaka, Aditya, McDaniel, Zebediah L., Simpson, Peter C., Garcia, Arturo
• Granted Patent: US 10,561,349 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 2560/0209 adapted for power saving
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 2560/0252 using ambient temperature
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/0015 characterised by features of the telemetry system
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/1116 Determining posture transitions
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/14546 for measuring analytes not otherwise provided for, e.g. ions, cytochromes
• CPC Class Codes: A61B 5/14865 invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
• CPC Class Codes: A61B 5/4839 combined with drug delivery
• CPC Class Codes: A61B 5/6898 Portable consumer electronic devices, e.g. music players, telephones, tablet computers
• CPC Class Codes: A61B 5/7275 Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
• CPC Class Codes: A61B 5/7278 Artificial waveform generation or derivation, e.g. synthesising signals from measured signals A61B5/327 takes precedence
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: A61B 5/743 Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: A61B 5/7475 User input or interface means, e.g. keyboard, pointing device, joystick
• CPC Class Codes: G16H 10/40 for data related to laboratory analysis, e.g. patient specimen analysis
• CPC Class Codes: G16H 10/60 : for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 40/60 : for the operation of medical equipment or devices
• CPC Class Codes: G16H 40/63 : for local operation
• CPC Class Codes: G16H 40/67 : for remote operation
• CPC Class Codes: H04L 67/12 : specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 69/18 : Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: Y02A 90/10 : Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

Methods and apparatus are provided for communication among display devices and sensor electronics unit in an analyte monitoring system. The analyte monitoring system may include a sensor that is configured to perform measurements indicative of analyte levels. The sensor may be communicatively coupled to the sensor electronics unit. The sensor electronics unit may be configured to transmit data indicative of analyte levels to the display devices using one or more communication protocols. Furthermore, the sensor electronics unit may be configured to operate in multiple modes, and switch between the modes in response to commands received from the display devices. Related systems, methods, and articles of manufacture are also described.

Claims

1. An analyte monitoring system, comprising:

a sensor configured to perform measurements indicative of analyte levels;

a sensor electronics unit communicatively coupled to the sensor, the sensor electronics unit configured to;

receive the measurements indicative of analyte levels from the sensor and calculate estimated analyte values;

operate in a normal power mode and a low power mode;

transmit data indicative of analyte levels when in the normal power mode using a first communication protocol, and

receive a command in the low power mode using a second communication protocol; and

a display device configured to;

transmit the command to the sensor electronics unit using the second communication protocol;

receive data indicative of analyte levels from the sensor electronics unit using the first communication protocol; and

wherein

the sensor electronics unit is configured to switch from the low power mode to the normal power mode in response to the command and wirelessly connect to the display device for communication over the first communication protocol.

2. The analyte monitoring system of claim 1, wherein the calculation of the estimated analyte levels is based at least in part on the measurements.

3. The analyte monitoring system of claim 1, wherein the low power mode is a shelf mode.

4. The analyte monitoring system of claim 1, wherein the command is a wake up command.

5. The analyte monitoring system of claim 1, wherein the sensor electronics unit is further configured to measure a remaining battery life of the sensor electronics unit.

6. The analyte monitoring system of claim 5, wherein the sensor electronics unit is further configured to cease transmission of data indicative of analyte levels when the measured remaining battery life falls below a predetermined threshold.

7. The analyte monitoring system of claim 5, wherein the sensor electronics unit is further configured to utilize the low power mode when the measured remaining battery life falls below a predetermined low power mode threshold.

8. The glucose monitoring system of claim 5, wherein the sensor electronics unit is further configured to utilize the normal power mode when the measured remaining battery life is above a predetermined normal power mode threshold.

9. An analyte monitoring system, comprising:

a sensor configured to take measurements indicative of analyte levels;

a sensor electronics unit communicatively coupled to the sensor, the sensor electronics unit configured to;

receive the measurements indicative of analyte levels from the sensor and calculate estimated analyte values,

operate in a normal power mode and a low power mode,

transmit data indicative of analyte levels when in the normal power mode using a first communication protocol, and

receive a command in the normal power mode using a second communication protocol; and

a display device configured to;

receive data indicative of analyte levels from the sensor electronics unit using the first communication protocol, and

transmit the command to the sensor electronics unit using the second communication protocol; and

wherein

the system is configured to cause the sensor electronics unit to switch from the normal power mode to the low power mode in response to the command and wirelessly disconnect the display device from the sensor electronics unit for communication over the first communication protocol.

10. The analyte monitoring system claim 9, wherein the calculation of the estimated analyte levels is based at least in part on the measurements.

11. The analyte monitoring system of claim 9, wherein the low power mode is a shelf mode.

12. The analyte monitoring system of claim 9, wherein the command is a sleep command.

13. An analyte monitoring system, comprising:

a sensor configured to perform measurements indicative of analyte levels;

a sensor electronics unit communicatively coupled to the sensor and configured to;

receive the measurements indicative of analyte levels,

process the received measurements, and

transmit data indicative of analyte levels using a first communication protocol at a predefined time; and

a display device configured to;

receive data indicative of analyte levels sent by the sensor electronics unit using the first communication protocol,

transmit a command message via a second communication protocol to stop the sensor from performing measurements, and

further transmit a request message via the second communication protocol requesting the sensor electronics unit to stop the transmission of the data indicative of analyte levels using the first communication protocol.

14. The analyte monitoring system of claim 13, wherein the second communication protocol utilizes at least one of near field communication and radio-frequency identification.

15. The analyte monitoring system of claim 13, wherein the processing of the received measurements by the sensor electronics unit comprises calculating estimated analyte values based at least in part on the measurements.

16. The analyte monitoring system of claim 13, wherein the command message provides instructions to the sensor electronics unit to cause the sensor to stop performing measurements.

17. The analyte monitoring system of claim 13, wherein the display device is further configured to use the second communication protocol to initiate the performing of measurements by the sensor and initiate the transmission of data indicative of analyte levels using the first communication protocol.