Fabrication of large arrays of cortical electrodes for use in man

Techniques are described for fabrication of electrode arrays for stimulation and/or recording from a human cerebral cortex. These arrays may be neurosurgically inserted (with or without a Penrose drain) in the course of a conventional craniotomy or craniectomy, and are easily removed without reopeni...

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Bibliographic Details
Published in:Journal of biomedical materials research 1977-05, Vol.11 (3), p.347-364
Main Authors: Klomp, G. F., Womack, M. V. B., Dobelle, W. H.
Format: Article
Language:English
Subjects:
Cerebral Cortex - physiology
Electric Stimulation
Electrodes, Implanted
Humans
Membrane Potentials
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Summary:Techniques are described for fabrication of electrode arrays for stimulation and/or recording from a human cerebral cortex. These arrays may be neurosurgically inserted (with or without a Penrose drain) in the course of a conventional craniotomy or craniectomy, and are easily removed without reopening the ineision. Termination of the connecting wires in a special percutaneous pedestal has also permitted chronic implantation. The contacts and connecting wires are made of pure platinum embedded in a Teflon ribbon‐cable matrix. The choice of materials combines biological acceptability, electrochemical stability, and integrity of the insulation, but imposes special fabrication procedures.
ISSN:0021-9304
1097-4636
DOI:10.1002/jbm.820110304