GLUCOSE SENSOR TRANSCEIVER

• US 20090085768A1
• Filed: 03/27/2008
• Published: 04/02/2009
• Est. Priority Date: 10/02/2007
• Status: Abandoned Application

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Morgan, Wayne A., Patel, Himanshu, Mastrototaro, John J., Chernoff, Edward
• Application Number:
  US12/056,651
• Publication Number:
  US 20090085768A1
• Time in Patent Office: Days
• US Class Current: 340/870.50
• CPC Class Codes: A61B 5/002 Monitoring the patient using a local or closed circuit, e.g. in a room or building A61B5/0017 takes precedence
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• 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 5/6865 Access ports
• CPC Class Codes: G08C 2201/40 Remote control systems using repeaters, converters, gateways
• CPC Class Codes: G08C 2201/51 Remote controlling of devices based on replies, status thereof
• CPC Class Codes: G16H 40/67 for remote operation
• CPC Class Codes: H04Q 2209/40 using a wireless architecture
• CPC Class Codes: H04Q 2209/84 Measuring functions
• CPC Class Codes: H04Q 2209/883 where the sensing device enters an active or inactive mode
• CPC Class Codes: H04Q 9/02 Automatically-operated arrangements

Abstract

The present invention relates to a telemetered characteristic sensor transceiver for exchanging data with at least one remote device. The transceiver includes a housing detachably coupled to a sensor located on a body of a user, the sensor producing a signal indicative of a user characteristic. A processor is formed within the housing and in communication with the sensor for processing the signal produced by the sensor. A transmitter is coupled to the processor for transmitting data to at least one remote device while a receiver is coupled to the processor for receiving data from the at least one remote device. A memory is coupled to the processor for storing data, wherein the processor performs calculations using at least one of the signal produced by the sensor, the data received from the at least one remote device and the data stored in the memory, and performs at least one of storing the calculations in the memory and transmitting the calculations to the at least one remote device through the transmitter.

Claims

1. A telemetered characteristic sensor transceiver for exchanging data with at least one remote device, the transceiver comprising:

a housing detachably coupled to a sensor located on a body of a user, the sensor producing a signal indicative of a user characteristic;

a processor formed within the housing and in communication with the sensor for processing the signal produced by the sensor;

a transmitter coupled to the processor for transmitting data to at least one remote device;

a receiver coupled to the processor for receiving data from the at least one remote device; and

a memory coupled to the processor for storing data,

wherein the processor performs calculations using at least one of the signal produced by the sensor, the data received from the at least one remote device and the data stored in the memory, and performs at least one of storing the calculations in the memory and transmitting the calculations to the at least one remote device through the transmitter.

2. The transceiver of claim 1, wherein the transceiver exchanges data with a plurality of remote devices in a network structure.

3. The transceiver of claim 1, wherein the transceiver exchanges data with the at least one remote device in a synchronous manner.

4. The transceiver of claim 1, wherein the transceiver wakes up from a sleep mode prior to exchanging data with the at least one remote device.

5. The transceiver of claim 4, wherein the at least one remote device wakes up the transceiver.

6. The transceiver of claim 5, further comprising an ultrasonic sensor for receiving an ultrasonic signal from the at least one remote device when the at least one remote device transmits the ultrasonic signal to the transceiver to wake up the transceiver.

7. The transceiver of claim 4, wherein the transceiver periodically wakes up independent of the at least one remote device.

8. The transceiver of claim 1, wherein the transceiver exchanges data with the at least one remote device in an asynchronous manner.

9. The transceiver of claim 8, wherein the data exchanged in the asynchronous manner comprises at least one of:

a blood glucose value; and

a request for glucose history data.

10. The transceiver of claim 1, wherein the data exchanged between the transceiver and the at least one remote device comprises at least one of:

device configuration data;

communication link configuration data;

adaptive communication configuration data;

glucose history data; and

calibration data.

11. The transceiver of claim 10, wherein the device configuration data comprises at least one of:

a device identification;

user information; and

time information.

12. The transceiver of claim 10, wherein the communication link configuration data comprises at least one of:

a communication rate;

frequency information; and

frequency hopping configuration information.

13. The transceiver of claim 10, wherein the glucose history data is exchanged according to a time interval.

14. The transceiver of claim 10, wherein the calibration data comprises at least one of:

sensor initialization sequence and configuration information; and

dynamic sensor initialization parameters.

15. The transceiver of claim 1, wherein the processor calculates sensor glucose values using at least one of the signal received from the sensor, the data received from the at least one remote device and the data stored in the memory.

16. The transceiver of claim 15, wherein a rate of exchanging data between the transceiver and the at least one remote device is dynamically changed depending on a characteristic of the calculated sensor glucose values.

17. The transceiver of claim 15, wherein a glucose calculation algorithm for calculating the sensor glucose values is stored in the memory.

18. The transceiver of claim 15, wherein the processor stores the calculated sensor glucose values in the memory or transmits the calculated sensor glucose values to the at least one remote device through the transmitter.

19. The transceiver of claim 18, wherein the calculated sensor glucose values are secured via an encryption scheme before transmission to the at least one remote device.

20. The transceiver of claim 15, wherein the receiver receives calibration data from the at least one remote device and the processor stores the received calibration data in the memory.

21. The transceiver of claim 20, wherein the processor performs a calibration using at least one of the calibration data stored in the memory, the signal received from the sensor and the calculated glucose sensor values.

22. The transceiver of claim 21, wherein a calibration algorithm for performing the calibration is stored in the memory.

23. The transceiver of claim 1, further comprising a display for displaying information processed by the processor.

24. The transceiver of claim 1, further comprising means for notifying the user that the at least one remote device is beyond a certain distance from the transceiver.

25. The transceiver of claim 1, wherein a power for exchanging data between the transceiver and the at least one remote device is dynamically changed depending on a strength of a detected signal between the transceiver and the at least one remote device.

26. The transceiver of claim 1, wherein a rate of exchanging data between the transceiver and the at least one remote device is dynamically changed depending on a power mode of at least one of the transceiver and the at least one remote device.

27. The transceiver of claim 1, wherein the housing is capable of detaching from the sensor and attaching to the at least one remote device.

28. The transceiver of claim 1, wherein the processor communicates with the sensor via wireless means.

29. The transceiver of claim 1, wherein the housing comprises a single communication port for facilitating at least two of:

communication between the transceiver and the sensor;

communication between the transceiver and the at least one remote device; and

an electrical connection between the transceiver and a battery charger.