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    • 6. 发明申请
    • METHODS AND SYSTEMS FOR GENERATING SMOOTHED IMAGES OF AN ELONGATE MEDICAL DEVICE
    • 用于生成精细医疗设备的平滑图像的方法和系统
    • WO2018013341A1
    • 2018-01-18
    • PCT/US2017/039426
    • 2017-06-27
    • ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC.
    • HILL, Anthony D.MALININ, Yuriy
    • A61B18/14A61B18/00A61B34/20A61B90/00A61B34/10
    • The present disclosure provides systems and methods for generating smoothed images of an elongate medical device including a plurality of position sensors. The system includes a model construction system configured to be coupled to the medical device and acquire data points corresponding to positions of the position sensors. The computer-based model construction system is further configured to establish a coordinate system, calculate a coordinate for each position sensor, estimate a set of true parameters describing the medical device including a curvature term and a torsion term, calculate a measurement error for each position sensor based on a stiffness parameter, compute smoothed data points for the position sensors based on (i) a function of the estimated set of true parameters and the coordinates of the position sensors, and (ii) a weighting of the measurement error, generate an image of the medical device using the smoothed data points, and display the image.
    • 本公开提供了用于生成包括多个位置传感器的细长医疗设备的平滑图像的系统和方法。 该系统包括模型构建系统,该模型构建系统被配置为耦合到医疗设备并获取与位置传感器的位置相对应的数据点。 基于计算机的模型构建系统还被配置为建立坐标系统,计算每个位置传感器的坐标,估计描述医疗设备的真实参数集合,包括曲率项和扭转项,计算每个位置的测量误差 基于刚度参数的传感器,基于(i)估计的一组真实参数和位置传感器的坐标的函数,以及(ii)测量误差的加权,计算位置传感器的平滑数据点,生成 医疗设备使用平滑数据点的图像,并显示图像。