Method and System for Providing Data Communication in Continuous Glucose Monitoring and Management System

• US 20130211788A1
• Filed: 01/31/2013
• Published: 08/15/2013
• Est. Priority Date: 04/29/2009
• Status: Active Grant

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Inventors: Dinh, Hung, Sloan, Mark Kent, Sicurello, Jeffery Mario
• Granted Patent: US 9,088,452 B2
• Time in Patent Office: Days
• US Class Current: 702/189
• CPC Class Codes: A61B 5/0004 characterised by the type of physiological signal transmitted
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1468 using chemical or electrochemical methods, e.g. by polarographic means A61B5/1486 takes precedence
• CPC Class Codes: A61B 5/7203 for noise prevention, reduction or removal
• CPC Class Codes: G06F 15/00 Digital computers in general details G06F1/00 – G06F13/00; Data processing equipment in general
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: H04L 65/00 Network arrangements, protocols or services for supporting real-time applications in data packet communication real-time or near real-time messaging, e.g. instant messaging [IM] H04L51/04; selective video distribution H04N21/00
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04Q 2209/40 using a wireless architecture
• CPC Class Codes: H04Q 2209/823 where the data is sent when the measured values exceed a threshold, e.g. sending an alarm
• CPC Class Codes: H04Q 2209/86 Performing a diagnostic of the sensing device
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Abstract

Method and apparatus for providing a data stream generator that generates a data stream associated with a monitored analyte level, and a radio frequency logic portion operatively coupled to the data stream generator, the radio frequency logic portion configured to generate a radio frequency data stream based on the data stream generated from the data stream generator, the radio frequency logic portion further including one or more finite state machines and a plurality of discrete digital logic circuits, the one or more finite state machines configured to control the plurality of digital logic circuits to generate the radio frequency data stream for wireless communication are provided. Systems and kits incorporating the same are also provided.

Claims

1. A system comprising:

an analyte sensor configured to provide a signal representative of a monitored analyte level; and

sensor electronics couplable to the analyte sensor and including one or more finite state machines and a plurality of discrete logic circuits,

wherein the finite state machines are configured to control the discrete logic circuits to receive the signal from the analyte sensor and to generate a data stream for transmission.

2. The system of claim 1, wherein the one or more finite state machines includes a serializer state machine configured to transition between a first state and a second state, serially outputting data with the transition.

3. The system of claim 1, wherein the one or more finite state machines includes a transmit state machine configured to control the generation of the data stream.

4. The system of claim 1, wherein the sensor electronics include a data multiplexer to multiplex data packets associated with the monitored analyte level.

5. The system of claim 4, wherein the sensor electronics further include a packet engine, wherein the data multiplexer and the packet engine are configured to store the data packets prior to the generation of the data stream.

6. The system of claim 1, wherein the one or more finite state machines of the sensor electronics includes an application specific integrated circuit.

7. The system of claim 6, wherein the application specific integrated circuit is implemented as a single semiconductor chip.

8. The system of claim 1 further including a radio frequency communication component operatively coupled to the sensor electronics to wirelessly communicate the generated data stream to a remote location,

wherein the radio frequency communication component includes an antenna configured to transmit radio frequency signals generated based on the data stream,

wherein the sensor electronics include one or more of a radio frequency logic finite state machine, a multiplexer, a Reed-Solomon encoder, a clock circuit, a plurality of registers, a counter or a Manchester encoder,

wherein the radio frequency logic finite state machine is configured for operation in a 26 MHz clock domain, and

wherein the sensor electronics are configured as a data interface and are configured to move data from a data multiplexer operating in a 32 KHz clock domain to a plurality of radio frequency data registers operating in the 26 MHz clock domain.

9. The system of claim 1 wherein the system is positionable to be worn on a user'"'"'s body with at least a portion of the analyte sensor disposed subcutaneously.

10. A method, comprising:

generating a signal representative of a monitored analyte level from an analyte sensor; and

operatively coupling sensor electronics to the analyte sensor, the sensor electronics including one or more finite state machines and a plurality of discrete logic circuits,

wherein the finite state machines are configured to control the discrete logic circuits to receive the signal from the analyte sensor and to generate a data stream for transmission.

11. The method of claim 10 further including providing a serializer state machine which transitions between a first state and a second state to serially output data with the transition.

12. The method of claim 10 further including providing a transmit state machine to control the generation of the data stream.

13. The method of claim 10 further including providing a data multiplexer to multiplex data packets associated with the monitored analyte level.

14. The method of claim 13 further including providing a packet engine such that the data multiplexer and the packet engine store the data packets prior to the generation of the data stream.

15. The method of claim 10 further including providing an application specific integrated circuit including the one or more finite state machines of the sensor electronics.

16. The method of claim 15, wherein the application specific integrated circuit is implemented as a single semiconductor chip.

17. The method of claim 10 further including operatively coupling a radio frequency communication component to the sensor electronics to wirelessly communicate the generated data stream to a remote location;

providing an antenna configured to transmit radio frequency signals generated based on the data stream;

configuring the radio frequency logic finite state machine for operation in a 26 MHz clock domain; and

configuring the sensor electronics as a data interface to move data from a data multiplexer operating in a 32 KHz clock domain to a plurality of radio frequency data registers operating in the 26 MHz clock domain.

18. The method of claim 10 further including positioning the sensor electronics and the analyte sensor on a body of a user with at least a portion of the analyte sensor disposed subcutaneously.

19. A method of manufacturing comprising:

minimizing consumption of power within wearable sensor electronics couplable to an analyte sensor by using a state machine to implement control of discrete logic circuits of the sensor electronics, wherein the discrete logic circuits are configured to receive a signal from the analyte sensor representative of a monitored analyte level and to generate a data stream for transmission; and

at least one of;

reducing a power supply capacity coupled to the wearable sensor electronics commensurate with the minimized consumption of power, and

extending an operating life of the wearable sensor electronics commensurate with the minimized consumption of power.

20. A method, comprising:

generating a signal representative of a monitored analyte level from an analyte sensor; and

generating a data stream for transmission using less power than required by a programmable processor to generate a data stream for transmission by employing one or more finite state machines and a plurality of discrete logic circuits,

wherein the finite state machines are configured to control the discrete logic circuits to receive the signal from the analyte sensor and to generate a data stream for transmission.