MULTICHANNEL ELECTRODE WITH INDEPENDENT BUNDLE TRAVEL OF MICROCONDUCTORS Russian patent published in 2011 - IPC A61N1/04 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, particularly, to neurophysiologic apparatuses for precision electrical stimulation and recording of bioelectric activity simultaneously of great number of neurons of human and animal brain. A multichannel electrode consists of a holder and a bundle of insulated ultrafine metal microconductors connected through contacts to a multichannel amplifier. In a central channel of the holder, there is a movable needle whereto ones of the ends of the microconductors of the bundle are attached, while the other ends are fixed in metal rods mounted in side inclined channels of the holder and independently movable and lifted to a level whereon an amplitude of the recorded bioelectric signal at an output of the related amplifier channel is maximum.

EFFECT: use of the invention shall allow higher efficiency of neurophysiologic testing due to increased simultaneously recorded cerebral neurons, enabled simultaneous micropoint brain stimulation within functionally marked nerve cells and due to decreased traumatism of cerebral tissue during neurosurgical intervention.

1 dwg