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The Lancet:可通过大脑控制的肌肉刺激恢复瘫痪病人抓-握能力

2017-03-29 MedSci MedSci原创

近日研究人员首次报道了创伤性高位颈髓损伤患者,通过植入皮下的脑-计算机端口(iBCI)控制FES以恢复抓-握运动能力。

对于颈脊髓损伤导致瘫痪的病人,可通过协调电刺激周围肌肉和神经恢复肢体运动,该疗法称为功能性电刺激(FES)。近日研究人员首次报道了创伤性高位颈髓损伤患者,通过植入皮下的脑-计算机端口(iBCI)控制FES可恢复患者抓-握运动能力,其结果发表于近日的The Lancet。

这项名为Braingate2的临床试验,其目的是考察皮下神经接口设备的安全性以及瘫痪病人用皮下信号控制辅助设备的可行性。设备植入手术在克利夫兰医学中心完成,试验研究及数据分析过程在西储大学和路易斯斯托克斯退伍军人事务医学中心进行。试验对象为脊髓损伤的53岁男性。首先,研究人员在其手部皮下植入2个微电极阵列,之后又先后在其右上下臂植入了36个电子设备用来刺激患者手、肘、肩部肌肉并借助电动移动臂进行肩关节的外展和内收。研究评估了患者操作手臂来进行简单的单关节臂和手的动作以及复杂的多关节运动的能力,并将iBCI操控手臂运动轨迹与电脑模拟轨迹进行比较。

研究表明,与虚拟手臂相比,患者使用FES操控手臂可以协调的完成单关节和多关节手臂的点对点目标动作,其精度达到80-100%。患者甚至可以自如的喝咖啡和自己进餐。

研究人员表示,这是世界首例将FES与iBCI结合以恢复由于脊髓损伤导致的瘫痪患者恢复其自主抓-握能力的报道,是一个重大的进步;临床上,为通过神经义肢植入达到运动机能恢复提供了一个明确的方向。

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    2018-02-22 howi
  2. [GetPortalCommentsPageByObjectIdResponse(id=1828834, encodeId=b42618288347e, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Thu Feb 22 09:55:00 CST 2018, time=2018-02-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=187515, encodeId=788318e515e0, content=有意义, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d8732047543, createdName=wen2009, createdTime=Sat Apr 15 00:20:26 CST 2017, time=2017-04-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1442974, encodeId=a06a14429e4b7, content=<a href='/topic/show?id=fe69e126189' target=_blank style='color:#2F92EE;'>#瘫痪#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71261, encryptionId=fe69e126189, topicName=瘫痪)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=45265003536, createdName=ms1948154235210413, createdTime=Thu Mar 30 23:55:00 CST 2017, time=2017-03-30, status=1, ipAttribution=)]
    2017-04-15 wen2009

    有意义

    0

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