Method and apparatus for providing EMC Class-B compliant RF transmitter for data monitoring an detection systems

• US 20060166629A1
• Filed: 01/24/2005
• Published: 07/27/2006
• Est. Priority Date: 01/24/2005
• Status: Abandoned Application

• Current Assignee: Abbott Diabetes Care Incorporated (Abbott Laboratories Incorporated)
• Original Assignee: Therasense Incorporated (Abbott Laboratories Incorporated)
• Inventors: Reggiardo, Christopher V.
• Application Number:
  US11/041,566
• Publication Number:
  US 20060166629A1
• Time in Patent Office: Days
• US Class Current: 455/120
• CPC Class Codes: A61B 2560/0271 using a remote monitoring unit
• 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 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range
• CPC Class Codes: H04W 80/00 Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

Method and apparatus for providing EMC Class-B compliant RF transmission for a data monitoring and detection system having a sensor for detecting one or more glucose levels, a transmitter configured to transmit a respective signal corresponding to each of the detected glucose levels using a data transmission protocol including wireless data transmission protocols, to a receiver which is configured to receive the transmitted signals corresponding to the detected glucose levels is provided. When placed in an EMC Class-B compliant mode the monitoring and detection system along with any associated patient treatment units would be allowed to operate in hospital environments and on commercial aircraft during flight.

Claims

1. An apparatus for data transmission, comprising:

an amplifier configured to receive a data signal, the amplifier further configured to amplify the received data signal;

a tuning unit operatively coupled to the amplifier, the tuning unit configured to condition the amplified data signal; and

an antenna operatively coupled to the tuning circuit, the antenna configured to transmit an output signal;

wherein the output power of the output signal is configured to vary between a plurality of power output states.

2. The apparatus of claim 1, wherein the data signal is associated with a measured glucose data.

3. The apparatus of claim 1 wherein the amplifier includes an RF power amplifier, and further, wherein the tuning circuit includes an RF tuning circuit.

4. The apparatus of claim 3 wherein the RF power amplifier includes a variable RF power amplifier, the RF tuning circuit includes a variable RF tuning circuit, and the antenna includes a variable antenna.

5. The apparatus of claim 1 wherein the plurality of power output states includes a full power output state, a power down state, and an EMC Class-B compliant operating power output state.

6. The apparatus of claim 1 wherein the plurality of power output states includes RF frequency of one of approximately 315 MHz, 433 MHz and 2.4 GHz.

7. The apparatus of claim 1 wherein the plurality of power output states are configured to operate under one of a Bluetooth transmission protocol, a Zigbee transmission protocol, and an 802.11x transmission protocol.

8. The apparatus of claim 1 further including a diplexer operatively coupled to the antenna, the diplexer configured to route data to and from the antenna.

9. A data monitoring system, comprising:

a sensor unit configured to detect one or more signals associated with a physiological condition;

a transmitter unit configured to receive the one or more signals from the lo sensor unit; and

a receiver unit configured to receive the one or more signals from the transmitter unit;

wherein the output power of the one or more signals transmitted from the transmitter unit is configured to vary between a plurality of power output states.

10. The system of claim 9 wherein the sensor unit includes a subcutaneous glucose sensor, and further, wherein the one or more signals include blood glucose data.

11. The system of claim 9 wherein the transmitter unit is configured to transmit the one or more signals received from the sensor unit under a wireless data transmission protocol.

12. The system of claim 9 wherein the plurality of power output states includes a full power output state, a power down state, and an EMC Class-B compliant operating power output state.

13. The system of claim 9 wherein the plurality of power output states are configured to operate under one of a Bluetooth transmission protocol, a Zigbee transmission protocol, and an 802.11x transmission protocol.

14. The system of claim 9 wherein the receiver includes a blood glucose monitor configured to generate an output signal based on the received one or more signals from the transmitter unit.

15. The system of claim 9 wherein said sensor unit is configured to detect a predetermined number of glucose levels over a predefined time period, and further, wherein said transmitter unit is further configured to transmit said predetermined number of glucose levels substantially in real time relative to the corresponding lo detection by the sensor unit over the predefined time period.

16. The system of claim 15 wherein the receiver unit is configured to receive said predetermined number of glucose levels over said predefined time period from said transmitter unit, and further, to generate one or more signals corresponding to each of said predetermined number of glucose levels received from said transmitter unit.

17. The system of claim 16 wherein said receiver unit is further configured to display said generated one or more signals substantially in real time relative to the reception of the corresponding glucose levels from said transmitter.

18. The system of claim 16 further including a patient treatment unit, said patent treatment unit configured to receive the one or more generated signals from the receiver unit, the patient treatment unit further configured to generate a treatment protocol for the physiological condition based on the one or more generated signals from the receiver unit.

19. The system of claim 18 wherein said patient treatment unit includes an insulin pump.

20. A method of providing data transmission, comprising the steps of:

receiving a data signal and amplifying the received data signal;

conditioning the amplified data signal;

varying the output power of the output signal between a plurality of power output states; and

transmitting the output signal at the one of the plurality of power output states.