Design of a Grooved Cross-Section Silicon Needle for Assisting Deep Implantation of Flexible Neural Probe

Aimed at the buckling problem of deep implantation of flexible neural probe, a grooved cross-section silicon needle is designed as an auxiliary implant tool to provide temporary stiffness for probe implantation. In order to quantitatively evaluate the comprehensive performance of auxiliary tools, co...

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Main Author: HE Yuxin, ZHANG Wenguang, XU Liyue, ZHOU Xuhui
Format: Article
Language:zho
Published: Editorial Office of Journal of Shanghai Jiao Tong University 2022-05-01
Series:Shanghai Jiaotong Daxue xuebao
Subjects:
Online Access:http://xuebao.sjtu.edu.cn/article/2022/1006-2467/1006-2467-56-5-648.shtml
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author HE Yuxin, ZHANG Wenguang, XU Liyue, ZHOU Xuhui
author_facet HE Yuxin, ZHANG Wenguang, XU Liyue, ZHOU Xuhui
author_sort HE Yuxin, ZHANG Wenguang, XU Liyue, ZHOU Xuhui
collection DOAJ
description Aimed at the buckling problem of deep implantation of flexible neural probe, a grooved cross-section silicon needle is designed as an auxiliary implant tool to provide temporary stiffness for probe implantation. In order to quantitatively evaluate the comprehensive performance of auxiliary tools, combining critical buckling force and cross-section area, and considering mechanical and biological properties, the performance evaluation index of auxiliary tools is proposed. Based on this evaluation index, the optimal groove depth ratio and groove width ratio of the grooved cross-section silicon needle are studied. The best groove depth ratio is the maximum value within the process requirements while the best groove width ratio increases with the thickness of the silicon needle. Moreover, the performance evaluation index is used to quantitatively prove that the grooved cross-section silicon needle has obvious performance advantages over the traditional circular and rectangular cross-section silicon needles. The simulation design of the grooved cross-section silicon needle is conducive to screening the best parameter combination of the cross-section, reducing the number of processing and the cost of experiments.
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spelling doaj.art-98a80208e2f04e18abcc4ff104b232032022-12-22T00:32:03ZzhoEditorial Office of Journal of Shanghai Jiao Tong UniversityShanghai Jiaotong Daxue xuebao1006-24672022-05-0156564865510.16183/j.cnki.jsjtu.2020.341Design of a Grooved Cross-Section Silicon Needle for Assisting Deep Implantation of Flexible Neural ProbeHE Yuxin, ZHANG Wenguang, XU Liyue, ZHOU Xuhui0State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, ChinaAimed at the buckling problem of deep implantation of flexible neural probe, a grooved cross-section silicon needle is designed as an auxiliary implant tool to provide temporary stiffness for probe implantation. In order to quantitatively evaluate the comprehensive performance of auxiliary tools, combining critical buckling force and cross-section area, and considering mechanical and biological properties, the performance evaluation index of auxiliary tools is proposed. Based on this evaluation index, the optimal groove depth ratio and groove width ratio of the grooved cross-section silicon needle are studied. The best groove depth ratio is the maximum value within the process requirements while the best groove width ratio increases with the thickness of the silicon needle. Moreover, the performance evaluation index is used to quantitatively prove that the grooved cross-section silicon needle has obvious performance advantages over the traditional circular and rectangular cross-section silicon needles. The simulation design of the grooved cross-section silicon needle is conducive to screening the best parameter combination of the cross-section, reducing the number of processing and the cost of experiments.http://xuebao.sjtu.edu.cn/article/2022/1006-2467/1006-2467-56-5-648.shtmlflexible neural probeimplantation strategygrooved cross-sectionsilicon needle
spellingShingle HE Yuxin, ZHANG Wenguang, XU Liyue, ZHOU Xuhui
Design of a Grooved Cross-Section Silicon Needle for Assisting Deep Implantation of Flexible Neural Probe
Shanghai Jiaotong Daxue xuebao
flexible neural probe
implantation strategy
grooved cross-section
silicon needle
title Design of a Grooved Cross-Section Silicon Needle for Assisting Deep Implantation of Flexible Neural Probe
title_full Design of a Grooved Cross-Section Silicon Needle for Assisting Deep Implantation of Flexible Neural Probe
title_fullStr Design of a Grooved Cross-Section Silicon Needle for Assisting Deep Implantation of Flexible Neural Probe
title_full_unstemmed Design of a Grooved Cross-Section Silicon Needle for Assisting Deep Implantation of Flexible Neural Probe
title_short Design of a Grooved Cross-Section Silicon Needle for Assisting Deep Implantation of Flexible Neural Probe
title_sort design of a grooved cross section silicon needle for assisting deep implantation of flexible neural probe
topic flexible neural probe
implantation strategy
grooved cross-section
silicon needle
url http://xuebao.sjtu.edu.cn/article/2022/1006-2467/1006-2467-56-5-648.shtml
work_keys_str_mv AT heyuxinzhangwenguangxuliyuezhouxuhui designofagroovedcrosssectionsiliconneedleforassistingdeepimplantationofflexibleneuralprobe