Implantable device and communication integrated circuit implementable therein

• US 7,775,444 B2
• Filed: 05/16/2007
• Issued: 08/17/2010
• Est. Priority Date: 12/01/2004
• Status: Active Grant

• Current Assignee: Alfred E. Mann Foundation For Scientific Research
• Original Assignee: Alfred E. Mann Foundation For Scientific Research
• Inventors: Gord, John C., Regev, Einan, Imani, Farid David, Karr, Lawrence J., DeRocco, Paul
• Primary Examiner(s): Lee; Seung H
• Application Number:
  US11/804,150
• Publication Number:
  US 20070222586A1
• Time in Patent Office: 1,189 Days
• Field of Search: 235/375, 235/492, 235/439, 600/546
• US Class Current: 235/492
• CPC Class Codes: A61N 1/3605 Implantable neurostimulators for stimulating central or peripheral nerve system
• CPC Class Codes: A61N 1/37252 Details of algorithms or data aspects of communication system, e.g. handshaking, transmitting specific data or segmenting data
• CPC Class Codes: A61N 1/37276 characterised by means for reducing power consumption during telemetry

Abstract

A wireless implantable device for communicating with a remote unit, wherein the wireless device is capable of self-initializing, namely initial booting without requiring an external general booting program to force the booting process. The implantable device can download program instructions from the remote unit for the operation of the implantable device. Moreover, the implantable device provides for checking the validity and integrity of any program instructions received from the remote unit for the operation of the implantable device. The implantable device has power-saving capability in order to extend the operation of the implantable device between battery charges.

Claims

1. An implantable device adapted for wireless communication comprising:

an RF transceiver; and

a digital processing unit comprising;

a communication controller configured to independently initialize and enable wireless communication between the implantable device and a remote unit, and

a general purpose controller configured to receive program instructions from the remote unit and load such instructions into a program memory, for the operation of the implantable device.

2. The implantable device of claim 1, wherein the general purpose controller comprises a computer readable medium containing a computer program having an executable code for checking that the program instructions received from the remote unit are the same as the program instructions transmitted by the remote unit.

3. The implantable device of claim 2, wherein the executable code is adapted to detect errors in the transmitted program instructions.

4. The implantable device of claim 3, wherein detecting errors in the transmitted program instructions comprises performing checks such as:

CRC, ARQ and FEC.

5. The implantable device of claim 1, wherein the general purpose controller comprises a computer readable medium containing a computer program having an executable code for checking the integrity of the program instructions received from the remote unit.

6. The implantable device of claim 5, wherein the executable code for checking the integrity of the program instructions received from the remote unit performs a check for infinite loops.

7. The implantable device of claim 1, further comprising an internal ROM for providing parameters to the communication controller for independently initializing and enabling the wireless communication operation of the implantable device with the remote unit.

8. The implantable device of claim 1, further comprising a capture buffer coupled to the RF transceiver, wherein the capture buffer receives digitized communication signals from the RF transceiver and stores the digitized communication signals therein.

9. The implantable device of claim 8, wherein the digital processing unit is coupled to the capture buffer for processing the digitized communication signals.

10. The implantable device of claim 9, wherein the operation of the digital processing unit is rendered inactive when the RF transceiver and the capture buffer are communicating with each other.

11. The implantable device of claim 8, further comprising a frame timing unit coupled to the capture buffer and the digital processing unit, wherein the frame timing unit synchronizes the operations of the capture buffer and the digital processing unit.

12. The implantable device of claim 1, further comprising a power control unit configured to provide power to a plurality of electronic components in the implantable device, wherein the power control unit selectively inactivates power delivery to at least one of the plurality of electronic components, when such at least one of the plurality of electronic components is not performing operations.

13. An implantable device comprising:

a digital processing unit;

an RF transceiver;

a capture buffer coupled to the RF transceiver, wherein the capture buffer receives digitized communication signals from the RF transceiver and stores the digitized communication signals therein; and

a plurality of electronic components;

wherein based upon the operation of said electronic components, the digital processing unit causes power to be removed from electronic components when such electronic components are not performing operations; and

wherein the digital processing unit stops processing digitized communication signals when said RF transceiver and said capture buffer are communicating for predetermined periods of time.

14. The implantable device of claim 13, wherein the digital processing unit comprises a communication controller and a general purpose controller.

15. The implantable device of claim 14, wherein the communication controller is programmed with a predetermined computer program for initializing and/or enabling the wireless communication operation of the implantable device.

16. The implantable device of claim 14, wherein the general purpose controller is adapted to receive computer program instructions from a remote unit for the operation of the implantable device.