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    • 1. 发明申请
    • Method and system for automatic decoding of motor cortical activity
    • 运动皮质活动自动解码方法及系统
    • US20060165811A1
    • 2006-07-27
    • US11086956
    • 2005-03-22
    • Michael BlackFrank WoodWei Wu
    • Michael BlackFrank WoodWei Wu
    • A61K35/30
    • G06K9/00536A61B5/0476A61B5/4041A61B5/7267
    • A Switching Kalman Filter Model for the real-time inference of hand kinematics from a population of motor cortical neurons. Firing rates are modeled as a Gaussian mixture where the mean of each Gaussian component is a linear function of hand kinematics. A “hidden state” models the probability of each mixture component and evolves over time in a Markov chain. Gaussian mixture models and Expectation Maximization (EM) techniques are extended for automatic spike sorting. Good initialization of EM is achieved via spectral clustering. To account for noise, the mixture model is extended to include a uniform outlier process. A greedy optimization algorithm that selects models with different numbers of neurons according to their decoding accuracy is used to automatically determine the number of neurons recorded per electrode. Closed loop neural control of external events are demonstrated using neural control of a computer curser.
    • 一种切换卡尔曼滤波器模型,用于从运动皮层神经元群体的手运动学的实时推断。 发射速率被模拟为高斯混合,其中每个高斯分量的平均值是手动运动学的线性函数。 “隐藏状态”模拟了马可夫链中每个混合分量的概率随时间推移。 高斯混合模型和期望最大化(EM)技术被扩展用于自动尖峰分类。 通过光谱聚类实现EM的良好初始化。 为了解决噪音,混合模型被扩展到包括一个统一的离群过程。 使用根据其解码精度选择具有不同数目神经元的模型的贪心优化算法来自动确定每个电极记录的神经元数量。 外部事件的闭环神经控制使用计算机光标的神经控制进行演示。
    • 5. 发明申请
    • OCCIPITAL PLATE SYSTEMS
    • 办公板系统
    • US20130238033A1
    • 2013-09-12
    • US13417800
    • 2012-03-12
    • Michael Black
    • Michael Black
    • A61B17/80
    • A61B17/7055A61B17/70A61B17/7047A61B17/7053A61B17/7056A61B17/7061
    • Occipital plate systems are described. The occipital plate systems can include a novel occipital plate having an upper portion and lower portion. The lower portion can include an opening for receiving one or more lateral members therethrough. The lateral members include top and/or side apertures for receiving lateral connectors that are attached to polyaxial screw receiving members. The occipital plate systems can also include low-profile clamping arms that are operably attached to an occipital plate via an extension member and articulating joint member. The clamping arms, along with tension cables attached intermittently along its length, can be used in addition to or instead of screws and hooks to secure an occipital plate system to vertebrae.
    • 枕形板系统被描述。 枕骨板系统可以包括具有上部和下部的新颖的枕骨板。 下部可以包括用于接收通过其中的一个或多个横向构件的开口。 横向构件包括用于接收附接到多轴螺旋接收构件的横向连接器的顶部和/或侧面孔。 枕骨板系统还可以包括通过延伸构件和铰接接头构件可操作地附接到枕骨板的低轮廓夹紧臂。 夹持臂以及沿着其长度间断连接的张力电缆可以用于螺钉和钩子之外或代替螺钉和钩子,以将枕骨板系统固定到椎骨上。