Flexible,high-density,laminated ECoG electrode array for high spatiotemporal resolution foci diagnostic localization of refractory epilepsy

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外文摘要：High spatiotemporal resolution brain electrical signals are critical for basic neuroscience research and high-precision focus diagnostic localization,as the spatial scale of some pathologic signals is at the submillimeter or micrometer level.This entails connecting hundreds or thousands of electrode wires on a limited surface.This study reported a class of flexible,ultrathin,high-density electrocorticogram(ECoG)electrode arrays.The challenge of a large number of wiring arrangements was overcome by a laminated structure design and processing technology improvement.The flexible,ultrathin,high-density ECoG electrode array was conformably attached to the cortex for reliable,high spatial resolution electrophysiologic recordings.The minimum spacing between electrodes was 15 μm,comparable to the diameter of a single neuron.Eight hundred electrodes were prepared with an electrode density of 4444 mm-2.In focal epilepsy surgery,the flexible,high-density,laminated ECoG electrode array with 36 electrodes was applied to collect epileptic spike waves in rabbits,improving the positioning accuracy of epilepsy lesions from the centimeter to the submillimeter level.The flexible,high-density,laminated ECoG electrode array has potential clinical applications in intractable epilepsy and other neurologic diseases requiring high-precision electroencephalogram acquisition.

外文关键词：

Electrocorticogram(ECoG)electrodeEpilepsyHigh densityHigh resolutionLaminated structure

作者：

Yafeng Liu、Zhouheng Wang、Yang Jiao、Ying Chen、Guangyuan Xu、Yinji Ma、Xue Feng

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作者单位：

Applied Mechanics Laboratory,Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China

Laboratory of Flexible Electronics Technology,Tsinghua University,Beijing 100084,China

College of Artificial Intelligence,Southwest University,Chongqing 400715,China

Institute of Flexible Electronics Technology of THU,Jiaxing 314000,China

Qiantang Science and Technology Innovation Center,Hangzhou 310016,China

School of Artificial Intelligence,Beijing University of Posts and Telecommunications,Beijing 100876,China

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基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities,ChinaChongqing Natural Science Foundation of China

项目编号：

U20A6001120021901197220711921002SWU-KQ22029CSTB2022NSCQ-MSX1635

出版年：

2024

DOI：

10.1007/s42242-024-00278-2

生物设计与制造(英文)

ISSN：2096-5524

年,卷(期)：2024.7(4)