Multisite Microelectrodes for Use in Human Deep Brain Stimulation

This study describes a novel multisite recording probe with linear arrangement of recording sites. It is build from a 30cm long, 650μm diameter stainless steel rod featuring 31 microelectrodes on the side of its business end and a conical tip. Recording sites are gold plated and have a complex imped...

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Bibliographic Details
Main Authors: Hofmann, U.G., Moll, C.K.E., Engler, G., Engel, A.K., Bar, M., Hohl, D., Thomas, U., Detemple, P.
Format: Conference Proceeding
Language:English
Subjects:
animal recording
Brain stimulation
Gold
Humans
Impedance
Low-noise amplifiers
Manufacturing
medical device
Microelectrodes
Multsite neuronal recording
Probes
Rubber
Steel
steel probe
stereotaxic surgery
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Summary:This study describes a novel multisite recording probe with linear arrangement of recording sites. It is build from a 30cm long, 650μm diameter stainless steel rod featuring 31 microelectrodes on the side of its business end and a conical tip. Recording sites are gold plated and have a complex impedance in saline of few hundred kOhm. It is manufactured by precision mechanics and connected with a low-noise multichannel amplifier to a medical grade recording setup. While mounted to a standard stereotaxic frame its movement in z-direction is controlled with a proven rubber motor. Preliminary recordings from anesthetized ferret's cortex show its ability to record both local field potentials and multi unit activity of neurons across different layers
DOI:10.1109/MMB.2006.251551