A fully implantable 96-channel neural data acquisition system

A 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 da...

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Bibliographic Details
Published in:Journal of neural engineering 2009-04, Vol.6 (2), p.026002-026002
Main Authors: Rizk, Michael, Bossetti, Chad A, Jochum, Thomas A, Callender, Stephen H, Nicolelis, Miguel A L, Turner, Dennis A, Wolf, Patrick D
Format: Article
Language:English
Subjects:
Action Potentials
Animals
Brain - physiology
Computers
Electrodes, Implanted
Equipment Design
Haplorhini
Prostheses and Implants
Sheep
Signal Processing, Computer-Assisted
Telemetry
Temperature
User-Computer Interface
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Summary:A 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.
ISSN:1741-2552
1741-2560
1741-2552
DOI:10.1088/1741-2560/6/2/026002