Electronic support system for biological data sensor

• US 20080281298A1
• Filed: 02/07/2006
• Published: 11/13/2008
• Est. Priority Date: 02/07/2005
• Status: Abandoned Application

• Current Assignee: University of Iowa Research Foundation
• Original Assignee: University of Iowa Research Foundation
• Inventors: Andersen, David R., Wu, Jason, Kanukurthy, Kiran
• Application Number:
  US11/348,615
• Publication Number:
  US 20080281298A1
• Time in Patent Office: Days
• US Class Current: 604/891.1
• CPC Class Codes: A61B 2560/0219 of externally powered implanted units
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/076 Permanent implantations telemetry using implanted circuitry A61B5/0031; implanted stimulators for therapy A61N1/3605, A61N1/362, A61N1/372
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement

Abstract

An electronic support system for controlling a biological data sensor and related methods of use are disclosed herein.

Claims

1. An electronic support system for controlling an implanted biological data sensor, comprising:

a) a primary module comprised of;

i) a main controller having a data acquisition interface and a telemetry interface;

ii) a data acquisition unit in communication with the main controller through the data acquisition interface and configured to receive data transmitted from a biological data sensor;

iii) a first telemetry unit in communication with the main controller through the telemetry interface;

iv) an internal power unit; and

b) a remote module comprised of a remote charging unit and a second telemetry unit,

wherein the first telemetry unit is configured to communicate with second telemetry unit.

2. The electronic support system of claim 1, wherein the primary module is implantable into a test subject

3. The electronic support system of claim 1, wherein the biological data sensor is a biological analyte sensor.

4. The electronic support system of claim 3, wherein the analyte is glucose.

5. The electronic support system of claim 1, wherein the main controller comprises a microcontroller and a memory capacity.

6. The electronic support system of claim 5, wherein the memory capacity is capable of storing at least 24 hours of sampled data.

7. The electronic support system of claim 5, wherein the microcontroller is programmed with an instruction set.

8. The electronic support system of claim 5, wherein the microcontroller is an 8 or 16 bit microcontroller.

9. The electronic support system of claim 1, wherein the data acquisition interface comprises a serial peripheral interface.

10. The electronic support system of claim 1, wherein the telemetry interface comprises an RS-232 serial port.

11. The electronic support system of claim 1, wherein the data acquisition unit is configured to receive sample data from a photodiode array.

12. The electronic support system of claim 1, wherein the data acquisition unit comprises a current integrator in communication with the implantable biological sensor.

13. The electronic support system of claim 12, further comprising an analog to digital converter in communication with the current integrator.

14. The electronic support system of claim 1, wherein the data acquisition unit comprises a current integrating analog to digital converter.

15. The electronic support system of claim 14, wherein the analog/digital converter provides digitized voltage values having a level of precision in the range of from 8 bits to 128 bits.

16. The electronic support system of claim 15, wherein the analog/digital converter provides digitized voltage values having a level of precision in the range of from 16 bits to 24 bits.

17. The electronic support system of claim 1, wherein the first telemetry unit comprises a RF transmitter.

18. The electronic support system of claim 17, wherein the RF transmitter is configured to communicate with a second telemetry unit according to IEEE 802.15.4 wireless protocol.

19. The electronic support system of claim 1, wherein the internal power unit can supply a regulated voltage to one or more components of the primary module in the range of from 3 volts to 4 volts.

20. The electronic support system of claim 1, wherein the internal power unit can be electromagnetically charged from the remote charging unit by inductive coupling.

21. The electronic support system of claim 2, wherein the primary module is implantable into the subcutaneous tissue of a test subject.

22. The electronic support system of claim 1, wherein the second telemetry unit comprises an RF receiver configured to receive data transmitted from the first telemetry unit.

23. The electronic support system of claim 1, wherein the remote module can be positioned a distance of up to 200 feet from the primary module.

31. An insulin delivery system comprising the electronic support system of claim 1.

24. A method for monitoring a concentration of an analyte in a test subject;

comprising the steps of;

sampling electromagnetic absorption data of an analyte in a test subject with an implantable analyte sensor;

transmitting the sampled data in digitized format to a main controller unit wherein at least a portion the digitized data is time stamped and stored as processed data;

transmitting at least a portion of the processed data to a remote telemetry module; and

determining the concentration of the analyte in the test subject at a predetermined time from at least a portion of the processed data received by the remote telemetry module.

25. The method of claim 24, wherein the analyte is glucose.

26. The method of claim 24, wherein at least a portion of the processed data is stored for a predetermined period prior to being transmitted to the remote telemetry unit.

27. The method of claim 26, wherein at least a portion of the processed data is stored for a period of up to 24 hours prior to being transmitted to the remote telemetry unit.

28. The method of claim 24, wherein the electromagnetic absorption data is obtained from a photodiode array.

29. The method of claim 24, wherein the processed data is transmitted to the remote telemetry module according to IEEE 802.15.4 wireless protocol.

30. The method of claim 24, wherein the digitized data comprises a level of precision in the range of from 16 bits to 24 bits.