会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明公开
    • Method for filtering out artefacts of deep brain stimulation
    • 韦尔法罕zur Ausfilterung von Artefakten aus einer tiefen Hirnstimulation
    • EP1985230A1
    • 2008-10-29
    • EP07300991.2
    • 2007-04-26
    • INSERM (Institut National de la Santé et de la Recherche Medicale)
    • The designation of the inventor has not yet been filed
    • A61B5/04A61N1/36
    • A61B5/04001A61B5/0478A61B5/7239A61N1/36082
    • The present invention relates to a method for filtering the signal of neuronal activity during a high frequency deep brain stimulation (DBS) to remove the stimulus artefact in the observed signal, comprising the step of approximating the observed signal trajectories in phase space the observed signal being considered as a sum of the stimulation artefacts induced by the signal of stimulation, wherein the signal of stimulation is assumed to be a solution of an ordinary differential equation including a self-oscillating system with stable limit cycle; slicing the observed signal and its derivative into segments, each segment corresponding to a period of stimulation ; collecting N selected periods of stimulation to a training set ; estimating the limit cycle of the self-oscillating system ; synchronizing each artefact of the observed signal with the estimated limit cycle ; subtracting the estimated limit cycle from each artefact in phase space according to the synchronization ; collecting all segments in order to obtain whole filtered signal and finally presenting the results in time domain.
    • 本发明涉及一种在高频深部脑刺激(DBS)过滤神经元活动信号以去除观察信号中的刺激伪影的方法,包括以下步骤:将观测信号的观测信号近似为观察信号, 被认为是由刺激信号引起的刺激伪影的总和,其中刺激信号被假设为包括具有稳定极限循环的自振荡系统的普通微分方程的解; 将观察到的信号及其导数切片成段,每段对应一段刺激; 将N个选定的刺激时段收集到训练集; 估计自振系统的极限循环; 将观测信号的每个假象与估计的极限周期同步; 根据同步从相位空间中的每个伪像减去估计极限周期; 收集所有段以获得整个过滤的信号,并最终在时域显示结果。