INTRACRANIAL SENSING & 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 sensoring and monitoring.

主权项

1. A sensing device for contact with brain tissue comprising:
a flexible support sleeve having an outer surface and inner surface defining a cavity; at least one macroelectrode sensing element secured with respect to the outer surface and having a macroelectrode brain-contact surface; a lead wire secured to each macroelectrode sensing element and extending into and along the cavity; at least one microelectrode sensing element secured with respect to the macroelectrode sensing element and having a microelectrode brain-contact surface surrounded by the macroelectrode brain-contact surface; and a micro-wire secured to each macroelectrode sensing element and extending into and along the cavity, wherein the macroelectrode brain-contact surface and the microelectrode brain-contact surface are in substantially the same curved surface to abut brain tissue for sensoring and monitoring.