Michael Rizk et al 2009 J. Neural Eng. 6 026002 doi:10.1088/1741-2560/6/2/026002
Michael Rizk1, Chad A Bossetti1, Thomas A Jochum1, Stephen H Callender1, Miguel A L Nicolelis2,3, Dennis A Turner2,4 and Patrick D Wolf1
Show affiliationsA fully implantable neural data acquisition system is a key component of a clinically viable brain–machine interface. This type of system must communicate with the outside world and obtain power without the use of wires that cross through the skin. We present a 96-channel fully implantable neural data acquisition system. This system performs spike detection and extraction within the body and wirelessly transmits data to an external unit. Power is supplied wirelessly through the use of inductively coupled coils. The system was implanted acutely in sheep and successfully recorded, processed and transmitted neural data. Bidirectional communication between the implanted system and an external unit was successful over a range of 2 m. The system is also shown to integrate well into a brain–machine interface. This demonstration of a high channel-count fully implanted neural data acquisition system is a critical step in the development of a clinically viable brain–machine interface.
87.85.Ng Biological signal processing
87.19.R- Mechanical and electrical properties of tissues and organs
Issue 2 (April 2009)
Received 21 October 2008, accepted for publication 27 January 2009
Published 2 March 2009
Michael Rizk et al 2009 J. Neural Eng. 6 026002
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