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    • 8. 发明授权
    • Actuator for a vehicle steering device
    • 用于车辆转向装置的致动器
    • US07041022B2
    • 2006-05-09
    • US10479953
    • 2002-06-11
    • Michael BockWilli Nagel
    • Michael BockWilli Nagel
    • F16H3/72F16H57/08F16C1/10
    • B62D5/008F16H1/2836F16H1/2863F16H35/008
    • An actuator for superimposed steering engagement in a vehicle steering system having first and second input shafts, an output shaft coaxial with the first input shaft, and a superposition gear disposed between the shafts. The superposition gear has a two-stage, modified planetary gear that has respective sun wheels fixed on the first input shaft and the output shaft, respectively, a satellite carrier that can be driven by the second input shaft, and at least one stepped planet with two respective planet wheels that mesh with the sun wheels. The planet wheels are, spaced apart axially from one another, one on each end portion of a smaller-diameter shaft portion with which they are integral.
    • 一种用于在具有第一和第二输入轴的车辆转向系统中的叠加转向接合的致动器,与第一输入轴同轴的输出轴以及设置在轴之间的叠加齿轮。 叠加齿轮具有两级改进的行星齿轮,其具有分别固定在第一输入轴和输出轴上的相应的太阳轮,可由第二输入轴驱动的卫星载体,以及至少一个带有 两个相应的行星轮与太阳轮啮合。 行星轮彼此轴向间隔开,一个在小直径轴部分的每个端部上,它们是一体的。
    • 10. 发明授权
    • Method for separating arteries and veins in 3D MR angiographic images using correlation analysis
    • 使用相关分析在3D MR血管造影图像中分离动脉和静脉的方法
    • US06377835B1
    • 2002-04-23
    • US09651748
    • 2000-08-30
    • Stefan O. SchoenbergMichael BockMichael V. KnoppGerhard Laub
    • Stefan O. SchoenbergMichael BockMichael V. KnoppGerhard Laub
    • A61B505
    • G01R33/5601A61B5/055G06T7/0012
    • In a 3D magnetic resonance angiography (MRA) method, a region of interest, containing a major pulmonary vessel, is defined in an examination subject, and the subject is injected with a contrast agent bolus and a number of 3D magnetic resonance angiography data sets are obtained from the examination subject before, during and after arrival of the bolus in the region of interest. A slice from each of the data sets is selected which contains the region of interest, and an average region of interest signal as a function of time is determined and stored as a reference time curve. In the respective selected slices, a signal-time curve is identified and each signal-time curve is cross-correlated with the reference time curve. The cross-correlation results are used to form a new three-dimensional data set containing arterial and venous correlation maps. Maximum intensity projections are computed from the arterial and venous correlation maps for producing a visualized image of the pulmonary vasculature in the region of interest, the arteries and veins in the respective maximum intensity projections being clearly distinguishable.
    • 在3D磁共振血管造影(MRA)方法中,在检查对象中定义了包含主要肺血管的感兴趣区域,并且将受试者注射造影剂推注,并且多个3D磁共振血管造影数据集是 在大量药物到达之前,期间和之后从感染区域获得的检查对象。 选择来自每个数据集的切片,其包含感兴趣区域,并且确定作为时间的函数的平均感兴趣区域信号,并将其存储为参考时间曲线。 在各个选定的切片中,识别信号 - 时间曲线,并且每个信号 - 时间曲线与参考时间曲线互相关。 互相关结果用于形成包含动脉和静脉相关图的新的三维数据集。 从动脉和静脉相关图计算最大强度投影,用于产生感兴趣区域中肺血管系统的可视化图像,各个最大强度投影中的动脉和静脉可以清楚地区分开。