不同脉宽比和相间距脉冲对电刺激神经募集响应的影响

来源 :2015年中国生物医学工程联合学术年会 | 被引量 : 0次 | 上传用户：zhuliangmike

【摘要】

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【作者】

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陶万军王志功吕晓迎高玉洁

【机构】

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东南大学射频与光电集成电路研究所南京 210096 东南大学射频与光电集成电路研究所南京 21

【出处】

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2015年中国生物医学工程联合学术年会

【发表日期】

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2015年11期

【关键词】

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神经刺激脉宽比相间距电荷平衡募集曲线

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本论文基于肌电信号(electromyography,EMG)再生原理,通过定量分析不同脉宽比和相间距(interphase gap,IPG)刺激脉冲的影响,期望在不改变系统软硬件前提下优化功能电刺激器的性能.首先使用多触点卡肤(cuff)电极刺激损脊蟾蜍坐骨神经,获得不同脉宽比和IPG的刺激募集响应曲线.然后,通过玻尔兹曼方程拟合出最大幅度、阈值、斜率和动态范围四个募集特征值.最后,在这些特征参数综合考虑下,通过这些特征参数定量分析,确定出脉宽比为1:6的非对称双相电荷平衡脉冲和IPG=300μs为最佳的参数,为刺激器脉冲波形参数的设定提供重要的参考.

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不同脉宽比和相间距脉冲对电刺激神经募集响应的影响

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