Continuous Glucose Monitoring System and Methods of Use

• US 20180214029A1
• Filed: 03/26/2018
• Published: 08/02/2018
• Est. Priority Date: 12/31/2002
• Status: Active Grant

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Inventors: Jin, Robert Y., Sloan, Mark Kent
• Granted Patent: US 10,750,952 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 2562/08 Sensors provided with means for identification, e.g. barcodes or memory chips
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement

Abstract

A continuous glucose monitoring system including a sensor configured to detect one or more glucose levels, a transmitter operatively coupled to the sensor, the transmitter configured to receive the detected one or more glucose levels, the transmitter further configured to transmit signals corresponding to the detected one or more glucose levels, and a receiver operatively coupled to the transmitter configured to receive transmitted signals corresponding to the detected one or more glucose levels, and methods thereof, are disclosed. In one aspect, the transmitter may be configured to transmit a current data point and at least one previous data point, the current data point and the at least one previous data point corresponding to the detected one or more glucose levels.

Claims

1. An analyte monitoring system, comprising:

an analyte sensor configured to generate signals corresponding to a monitored analyte level in interstitial fluid;

sensor electronics operatively coupled to the analyte sensor, wherein the sensor electronics is configured to process the generated signals to form one or more data packets, the one or more data packets including at least a current analyte level data point at a current monitoring time, time information that corresponds to a subsequent transmission interval for communication of one or more subsequent data packets, and data identifying the sensor electronics, wherein the sensor electronics is further configured to communicate the one or more data packets to a receiving device at a current transmission time; and

a receiving device configured to receive the one or more data packets, and to use the time information and the data identifying the sensor electronics to identify the subsequent transmission interval;

wherein the sensor electronics further include programming to communicate the one or more data packets to the receiving device at a time outside the subsequent transmission interval in response to a user request provided from the receiving device.

2. The system of claim 1, wherein the analyte of the analyte sensor is one of lactate or glucose.

3. The system of claim 1, wherein the subsequent transmission interval corresponds to a listening window, and wherein the receiving device is configured to receive the one or more subsequent data packets from the sensor electronics during the listening window.

4. The system of claim 1, wherein the receiving device further comprises a display to display an indicator for the current analyte level data point.

5. The system of claim 4, wherein the receiving device is further configured to synchronize with the sensor electronics to receive the one or more data packets.

6. The system of claim 1, wherein the analyte sensor comprises a plurality of electrodes including a working electrode comprising an analyte-responsive enzyme bonded to a polymer disposed on the working electrode.

7. The system of claim 6, wherein the analyte-responsive enzyme is chemically bonded to the polymer.

8. The system of claim 6, wherein the working electrode further comprises a mediator.

9. The system of claim 1, wherein the analyte sensor comprises a plurality of electrodes including a working electrode comprising a mediator bonded to a polymer disposed on the working electrode.

10. The system of claim 9, wherein the mediator is chemically bonded to the polymer.

11. A device, comprising:

sensor electronics, the sensor electronics comprising;

a processor; and

a memory, the memory storing instructions which, when executed by the processor, cause the processor to;

receive signals corresponding to a monitored analyte level in interstitial fluid from an analyte sensor;

process the signals from the analyte sensor to form one or more data packets, the one or more data packets including at least a current analyte level data point at a current monitoring time, time information that corresponds to a subsequent transmission interval for communication of one or more subsequent data packets, and data identifying the sensor electronics;

communicate the one or more data packets to a receiving device at a current transmission time, wherein the receiving device is configured to use the time information and the data identifying the sensor electronics to identify the subsequent transmission interval; and

communicate the one or more data packets to the receiving device at a time outside the subsequent transmission interval in response to a user request provided from the receiving device.

12. The device of claim 11, wherein the analyte of the analyte sensor is one of lactate or glucose.

13. The device of claim 11, wherein the subsequent transmission interval corresponds to a listening window, and wherein the memory further storing instructions to communicate the one or more subsequent data packets during the listening window.

14. The device of claim 11, wherein the memory further storing instructions to synchronize with the receiving device to communicate the one or more data packets.

15. The device of claim 11, wherein the memory further storing instructions to communicate the one or more subsequent data packets during the subsequent transmission interval in real time.

16. The device of claim 11, wherein the analyte sensor comprises a plurality of electrodes including a working electrode comprising an analyte-responsive enzyme bonded to a polymer disposed on the working electrode.

17. The device of claim 16, wherein the analyte-responsive enzyme is chemically bonded to the polymer.

18. The device of claim 16, wherein the working electrode further comprises a mediator.

19. The device of claim 11, wherein the analyte sensor comprises a plurality of electrodes including a working electrode comprising a mediator bonded to a polymer disposed on the working electrode.

20. The device of claim 19, wherein the mediator is chemically bonded to the polymer.