Title
A 32-Channel Fully Implantable Wireless Neurosensor For Simultaneous Recording From Two Cortical Regions
Abstract
We present a fully implantable, wireless, neurosensor for multiple-location neural interface applications. The device integrates two independent 16-channel intracortical microelectrode arrays and can simultaneously acquire 32 channels of broadband neural data from two separate cortical areas. The system-on-chip implantable sensor is built on a flexible Kapton polymer substrate and incorporates three very low power subunits: two cortical subunits connected to a common subcutaneous subunit. Each cortical subunit has an ultra-low power 16-channel preamplifier and multiplexer integrated onto a cortical microelectrode array. The subcutaneous epicranial unit has an inductively coupled power supply, two analog-to-digital converters, a low power digital controller chip, and microlaser-based infrared telemetry. The entire system is soft encapsulated with biocompatible flexible materials for in vivo applications. Broadband neural data is conditioned, amplified, and analog multiplexed by each of the cortical subunits and passed to the subcutaneous component, where it is digitized and combined with synchronization data and wirelessly transmitted transcutaneously using high speed infrared telemetry.
Year
DOI
Venue
2011
10.1109/IEMBS.2011.6090579
2011 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC)
Keywords
Field
DocType
microelectrodes,digital control,electroencephalography,infrared,neurophysiology,telemetry,application specific integrated circuits,chip,digital controller,vertical cavity surface emitting laser,application specific integrated circuit,brain mapping,system on chip,microarray analysis,microelectrode array,preamplifiers,synchronization
Biomedical engineering,Preamplifier,System on a chip,Computer science,Telemetry,Electronic engineering,Chip,Multiplexer,Multiplexing,Multielectrode array,Microelectrode
Conference
Volume
ISSN
Citations 
2011
1557-170X
5
PageRank 
References 
Authors
1.18
2
5
Name
Order
Citations
PageRank
Juan Aceros1435.89
Ming Yin251.18
David A Borton3426.24
W. R. Patterson412614.69
Arto V Nurmikko5113.08