Patent ID: 8812099
Filing Date: 2014-08-19
Classification: A61B,A61N

Abstract:
1. A method of using a catheter device to provide intravenous brain mapping from within one or more cerebral veins, comprising: advancing a distal tip portion of a brain mapping catheter device through a patient's vein that extends below the patient's head to a first position within one or more cerebral veins proximal to brain tissue within the patient's head, wherein the brain mapping catheter device accesses the one or more cerebral veins without surgical access through an opening in the patient's cranium; using one or more electrodes positioned along the distal tip portion of the brain mapping catheter device to detect first electrophysiological signals in a portion of the brain tissue while the one or more electrodes remain disposed at the first position within the one or more cerebral veins and while a proximal portion of the brain mapping catheter device resides external to the patient; after viewing the first electrophysiological signals being displayed on an electrophysiological mapping control and display system, directing the distal tip portion of the brain mapping catheter device to a second position within one or more cerebral veins proximal to the brain tissue; and using the one or more electrodes positioned along the distal tip portion of the brain mapping catheter device to detect second electrophysiological signals in the brain tissue while the one or more electrodes remain disposed at the second position within the one or more cerebral veins, the second electrophysiological signals being indicative of a location of a seizure focus and being displayed on the electrophysiological mapping control and display system.