Lancet Neurol:硬膜外无线脑-机接口控制四肢瘫痪患者的外骨骼

2019-10-04 MedSci MedSci原创

四肢瘫痪患者可利用神经假体外骨骼,通过脑-机器接口系统实现大脑-肢体活动

约20%的外伤性颈髓损伤会导致患者四肢瘫痪。近日研究人员考察了利用大脑信号驱动外骨骼的半侵入神经修复技术对改善患者生活质量的影响。

一名28岁,因C4-C5脊髓损伤后出现了四肢瘫痪男性参与,在其大脑的上肢感觉运动区域植入2个双侧无线硬膜外记录器,每个记录器有64个电极。硬膜外植入信号(ECoG)通过自适应解码算法在线处理,向执行器(虚拟化身或外骨骼)发送命令。

2017-2019年间,病人在家中利用虚拟化身模拟行走,并在不同的触控任务和手腕旋转过程中,以八自由度的方式进行双侧、多关节、上肢的运动,成功率为64.0%;在实验室的外骨骼中的成功率为70.9%。相比于微电极,硬膜外ECoG这种半侵入方式具有相似的效果,解码方法可重复使用约7周,无需重新校准。

研究发现,四肢瘫痪患者可利用神经假体外骨骼,通过脑-机器接口系统实现大脑-肢体活动。

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    2020-01-14 howi
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    2020-04-20 yinhl1978
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    2019-10-04 一天没事干

    很好的学习机会

    0

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    2019-10-04 坚强007

    向科研人员致敬

    0

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