Intracranial sensing and monitoring device with macro and micro electrodes

摘要

A cortical sensing device for contact with the surface of the brain is provided that includes a support member, at least one macroelectrode sensing element secured with respect to the support member and at least one microelectrode sensing element secured with respect to the macroelectrode. The support member is substantially thin and made from flexibly-conformable material to accurately and safely place the sensing device upon the brain surface. The microelectrode sensing element is surrounded by the macroelectrode brain-contact surface of the macroelectrode sensing element. The first surface of the support member, the macroelectrode brain-contact surface and the microelectrode brain-contact surface are substantially co-planar to abut the surface of the brain for sensing and monitoring.

主权项

1. A cortical sensing device for contact with the surface of the brain comprising:
a support member of a flexibly-conformable material and having a first surface; at least one macroelectrode sensing element secured with respect to the support member and having a macroelectrode brain-contact surface; at least one microelectrode sensing element secured with respect to the macroelectrode and having a microelectrode brain-contact surface surrounded by the macroelectrode brain-contact surface, wherein the first surface, the macroelectrode brain-contact surface and the microelectrode brain-contact surface are substantially co-planar to abut the surface of the brain for monitoring, the microelectrode sensing element is a micro-wire insulated therealong to the microelectrode brain-contact surface with a bio-compatible material to prevent electrical interaction between the microelectrode sensing element and macroelectrode sensing element.