Highly-Accurate, Implantable Micromanipulator for Single Neuron Recordings

Title
Highly-Accurate, Implantable Micromanipulator for Single Neuron Recordings
Authors
양성욱이세민박기태김진석조제원신희섭윤의성
Keywords
Mechanism Design of Manipulators; Micro/Nano Robots; Neurorobotics
Issue Date
2010-05
Publisher
2010 IEEE International Conference on Robotics and Automation
Citation
, 5070-5075
Abstract
A precise and implantable micromanipulator is presented for automatically advancing electrodes during single unit recordings in freely-behaving animals. The modular design and enhanced clamping mechanism with simple mechanical components are designed to provide reliable linear motion using a piezo motor with a stroke of 3 mm. To be specific, a closed loop control system, based on the position feedback from a magnetoresistive (MR) sensor, was implemented to overcome the non-linear characteristics of the piezo motor and to locate electrodes precisely at the targeted position with the accuracy of 1 μm, even under load. The weight of the micromanipulator is only 0.84 g when it is fully assembled with the MR sensor, PCBs, and connectors. In addition, a protective cover is employed to prevent breakage during semi-chronic recording. The positioning performance of the micromanipulator was tested at various loading conditions using various control methods. Finally, the activities of a single unit were isolated successfully using small step adjustments, such as 1 to 5 μm, in freely-moving mice.
URI
http://pubs.kist.re.kr/handle/201004/37437
Appears in Collections:
KIST Publication > Conference Paper
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE