Subdural electrode array manipulated by a shape memory alloy guidewire for minimally-invasive electrocorticogram recording

We propose a subdural electrode array guided by a φ 0.3 mm SMA guidewire for a minimally-invasive method of electrocorticogram recording. The measured electric characteristics show that the proposed electrodes are compatible with the application of electrocorticogram recording. Somatosensory evoked potential is measured by the proposed method in the animal test in vivo. The results confirm that the proposed electrode array is available for the ECoG recording under a minimally invasive surgery.