Methods and Apparatuses for Providing Adverse Condition Notification with Enhanced Wireless Communication Range in Analyte Monitoring Systems

• US 20150038818A1
• Filed: 10/21/2014
• Published: 02/05/2015
• Est. Priority Date: 09/17/2012
• Status: Active Grant

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Inventors: Cole, Jean-Pierre
• Granted Patent: US 9,968,306 B2
• Time in Patent Office: Days
• US Class Current: 600/365
• CPC Class Codes: A61B 2560/0271 using a remote monitoring unit
• CPC Class Codes: A61B 2560/028 Arrangements to prevent overuse, e.g. by counting the number of uses
• CPC Class Codes: A61B 2560/029 adapted for auto-initiation
• CPC Class Codes: A61B 2560/0431 Portable apparatus, e.g. comprising a handle or case
• CPC Class Codes: A61B 2560/045 with a separable interface unit, e.g. for communication
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/6813 Specially adapted to be attached to a specific body part A61B5/6802 takes precedence
• CPC Class Codes: A61B 5/725 using specific filters therefor, e.g. Kalman or adaptive filters A61B5/316 take precedence
• 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 5/7282 Event detection, e.g. detecting unique waveforms indicative of a medical condition A61B5/4094, A61B5/4818, A61B5/349, A61B5/0823 take precedence
• 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 5/7495 using a reader or scanner device, e.g. barcode scanner
• CPC Class Codes: G16H 40/20 for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems

Abstract

Methods, devices, systems, and kits are provided that buffer the time spaced glucose signals in a memory, and when a request for real time glucose level information is detected, transmit the buffered glucose signals and real time monitored glucose level information to a remotely located device, process a subset of the received glucose signals to identify a predetermined number of consecutive glucose data points indicating an adverse condition such as an impending hypoglycemic condition, confirm the adverse condition based on comparison of the predetermined number of consecutive glucose data points to a stored glucose data profile associated with the adverse condition, where confirming the adverse condition includes generating a notification signal when the impending hypoglycemic condition is confirmed, and activate a radio frequency (RF) communication module to wirelessly transmit the generated notification signal to the remotely located device only when the notification signal is generated.

Claims

1. A method of providing notification of a condition associated with a monitored analyte level, comprising:

determining sensor electronics data transmit time interval based on data received from sensor electronics;

applying a matched filter to one or more advertising packets received from the sensor electronics; and

detecting a notification message in the received one or more advertising packets based on the applied matched filter, the notification message corresponding to a monitored analyte level.

2. The method of claim 1, further including generating an output notification signal based on the detected notification message in the received one or more advertising packets.

3. The method of claim 1, wherein the one or more advertising packets are received from the sensor electronics in direct advertising mode.

4. The method of claim 1, wherein applying the matched filter to the one or more advertising packets includes applying a pulse matched filter to the one or more advertising packets.

5. The method of claim 1, wherein the detected notification message is associated with a detected anticipated adverse condition related to the monitored analyte level.

6. The method of claim 5, wherein the detected anticipated adverse condition includes one of an impending hypoglycemic condition, or a hypoglycemic condition.

7. The method of claim 1, wherein the one or more advertising packets are received during the determined sensor electronics data transmit time interval.

8. The method of claim 1, wherein the determined sensor electronics data transmit time interval is randomized.

9. The method of claim 8, wherein the determined sensor electronic data transmit time interview is randomized based on the data received from the sensor electronics.

10. An apparatus for communicating with analyte sensor electronics, comprising:

a processing unit;

a data communication unit operatively coupled to the processing unit; and

a data storage unit operatively coupled to the processing unit and the data communication unit, the data storage unit having stored therein programming which when executed by the processing unit, determines sensor electronics data transmit time interval based on data received from the sensor electronics by the data communication unit, applies a matched filter to one or more advertising packets received from the sensor electronics, and detects a notification message in the received one or more advertising packets based on the applied matched filter, the notification message corresponding to a monitored analyte level.

11. The apparatus of claim 10, wherein the data processing unit includes programming which when executed by the processing unit, generates an output notification signal based on the detected notification message in the received one or more advertising packets.

12. The apparatus of claim 10, wherein the data communication unit is configured to operate in direct advertising mode such that the one or more advertising packets are received from the sensor electronics in the direct advertising mode.

13. The apparatus of claim 10, wherein the processing unit is configured to apply pulse matched filter to the one or more advertising packets.

14. The apparatus of claim 10, wherein the detected notification message is associated with a detected anticipated adverse condition related to the monitored analyte level.

15. The apparatus of claim 14, wherein the detected anticipated adverse condition includes one of an impending hypoglycemic condition, or a hypoglycemic condition.

16. The apparatus of claim 10, wherein the data communication unit is configured to receive the one or more advertising packets during the determined sensor electronics data transmit time interval.

17. The apparatus of claim 10, wherein the determined sensor electronics data transmit time interval is randomized.

18. The apparatus of claim 17, wherein the determined sensor electronic data transmit time interval is randomized based on the data received from the sensor electronics.

19. A method of providing notification of a condition associated with a monitored analyte level, comprising:

receiving time spaced analyte related signals from an in vivo analyte sensor in fluid contact with interstitial fluid;

buffering the received time spaced analyte related signals in a memory;

processing the received time spaced analyte related signals to identify an impending adverse condition and to generate a notification signal when the impending adverse condition is identified;

increasing a power level associated with a radio communication from a power source; and

activating a radio frequency (RF) communication module to wirelessly transmit the generated notification signal to a remotely located device with the increased power level.

20. The method of claim 19, wherein the increased power level is a maximum radio communication power level from the power source.