Piezo motor based microdrive for neural signal recording

Author

Yang, Sungwook ; Lee, Semin ; Park, Kitae ; Jeon, Hyojin ; Huh, Yeowool ; Cho, Jeiwon ; Shin, Hee Sup ; Yoon, Eui-sung

Author_Institution

Nano-Bio Research Center, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea

fYear

2008

fDate

20-25 Aug. 2008

Firstpage

3364

Lastpage

3367

Abstract

The miniature piezo motor based microdrive which is applicable to the neural signal recording in mice is presented. The microdrive is manipulated by the micromotion of the mobile coupled to the piezo motor generating the flexural vibration within the range of 3.8 mm, with the resolution of 60nm. Advancement of electrodes in a mouse brain is monitored by an integrated MR (Magneto-Resistive) sensor. This microdrive has the length of 6.5mm, the width of 6.5 mm, the height of 12 mm and the total weight of 1.63 g only, including PCB for neural signal recording. The displacement of the microelectrode was evaluated and verified as applying the inputs with 5 to 100 pulses, 30 times to the piezo motor according to various driving voltages. The neural signals from the single thalamic neurons in an awake and freely moving mouse were recorded successfully with the presented microdrive.

Keywords

Couplings; Electrodes; Magnetic sensors; Mice; Microelectrodes; Micromotors; Monitoring; Neurons; Signal resolution; Voltage; Animals; Body Weight; Brain; Electrodes; Electrophysiology; Equipment Design; Magnetics; Mice; Microelectrodes; Neurons; Signal Processing, Computer-Assisted; Signal Transduction; Telemetry;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE

Conference_Location

Vancouver, BC

ISSN

1557-170X

Print_ISBN

978-1-4244-1814-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2008.4649927

Filename

4649927