Evaluation of New Flexible High-density Intra-operative ECoG Electrodes for Epilepsy Surgery. ( EpiGrid )

"Test Device (SOFT ECoG subdural grid electrode): used for recording. During epilepsy surgery, in addition to standard clinical protocol (recording with comparator device), subjects will undergo ≥ 2 additional intracranial recordings with the SOFT ECoG flexible high density electrode grid (TD). Recording will be registered pre- and post-resection.~All procedures will be conducted according to standard clinical practice. Any medical decision making will be done using the standard of care CE-marked device (CD). The investigational, non-CE marked device is not used for clinical decision making."