Journal article

Ring and peg electrodes for minimally-Invasive and long-term sub-scalp EEG recordings

YB Benovitski, A Lai, CC McGowan, O Burns, V Maxim, DAX Nayagam, R Millard, GD Rathbone, MA le Chevoir, RA Williams, DB Grayden, CN May, M Murphy, WJ D'Souza, MJ Cook, CE Williams

Epilepsy Research | Elsevier | Published : 2017


OBJECTIVE: Minimally-invasive approaches are needed for long-term reliable Electroencephalography (EEG) recordings to assist with epilepsy diagnosis, investigation and more naturalistic monitoring. This study compared three methods for long-term implantation of sub-scalp EEG electrodes. METHODS: Three types of electrodes (disk, ring, and peg) were fabricated from biocompatible materials and implanted under the scalp in five ambulatory ewes for 3months. Disk electrodes were inserted into sub-pericranial pockets. Ring electrodes were tunneled under the scalp. Peg electrodes were inserted into the skull, close to the dura. EEG was continuously monitored wirelessly. High resolution CT imaging, ..

View full abstract


Awarded by Australian National Health and Medical Research Council

Funding Acknowledgements

The authors acknowledge the support from the Australian National Health and Medical Research Council Project Grant (APP1075347). The Bionics Institute acknowledges the support it receives from the Victorian Government through its Operational Infrastructure, Support Program. The funding sources had no involvement in study design, collection, analysis and interpretation of data, writing of the report, or the decision to submit the article for publication.