FLEXIBLE TETHER WITH INTEGRATED SENSORS FOR DYNAMIC INSTRUMENT TRACKING
    2.
    发明申请
    FLEXIBLE TETHER WITH INTEGRATED SENSORS FOR DYNAMIC INSTRUMENT TRACKING 有权
    具有集成传感器用于动态仪器跟踪的柔性四面体

    公开(公告)号:US20130188855A1

    公开(公告)日:2013-07-25

    申请号:US13877343

    申请日:2011-10-06

    IPC分类号: A61B5/00

    摘要: A system and method are provided for tracking a functional part of an instrument during an interventional procedure and displaying dynamic imaging corresponding to a functional part of the instrument. The system comprises: at least one instrument; a system for acquiring anatomical images relevant to guiding the instrument; a tether connected to the imaging system at a fixed end and connected to the instrument at a distal end, the tether comprising at least one longitudinal optical fiber with a plurality of optical shape sensors; an optical console that interrogates the sensors and detects reflected light; and a processor that calculates local curvature at each sensor location to determine the three-dimensional shape of the tether and determines the location and orientation of the instrument relative to the images using the local curvatures of the tether and the location of the fixed end of the tether.

    摘要翻译: 提供了一种系统和方法,用于在介入过程期间跟踪仪器的功能部分,并显示对应于仪器的功能部分的动态成像。 该系统包括:至少一个仪器; 用于获取与引导仪器相关的解剖图像的系统; 在固定端连接到成像系统并在远端连接到仪器的系绳,所述系绳包括具有多个光学形状传感器的至少一个纵向光纤; 光学控制台,用于询问传感器并检测反射光; 以及处理器,其计算每个传感器位置处的局部曲率以确定系绳的三维形状,并且使用系绳的局部曲率和固定端的位置来确定乐器相对于图像的位置和取向 系绳

    FIBER OPTIC SENSOR FOR DETERMINING 3D SHAPE
    10.
    发明申请
    FIBER OPTIC SENSOR FOR DETERMINING 3D SHAPE 审中-公开
    用于确定3D形状的光纤传感器

    公开(公告)号:US20130308138A1

    公开(公告)日:2013-11-21

    申请号:US13981692

    申请日:2012-01-23

    IPC分类号: G01B11/24

    摘要: An optical shape sensing system employing an elongated device (20), an optical fiber (10) embedded within the elongated device (20) with the optical fiber (10) including one or more cores, an optical interrogation console (30) and a 3D shape reconstructor (40). In operation, the optical interrogation console (30) generates reflection spectrum data indicative of a measurement of both an amplitude and a phase of a reflection for each core of the optical fiber (10) as a function of wavelength and the 3D shape reconstructor (40) reconstructs a 3D shape of the optical fiber (10). The 3D shape reconstructor (40) executes a generation of local strain data for a plurality of positions along the optical fiber (10) responsive to the reflection spectrum data, a generation of local curvature and torsion angle data as a function of each local strain along the fiber, and a reconstruction of the 3D shape of the optical fiber (10) as a function of each local curvature and torsion angle along the optical fiber (10).

    摘要翻译: 一种使用细长装置(20)的光学形状感测系统,包括一个或多个芯的光纤(10)嵌入细长装置(20)内的光纤(10),光学询问控​​制台(30)和3D 形状重建器(40)。 在操作中,光询问控制台(30)产生反映光谱数据,该反射光谱数据指示作为波长的函数的光纤(10)的每个核心的反射的振幅和相位的测量,以及3D形状重建器(40 )重建光纤(10)的3D形状。 3D形状重构器(40)响应于反射光谱数据执行沿着光纤(10)的多个位置的局部应变数据的产生,产生局部曲率和扭转角数据作为每个局部应变的函数 光纤,以及沿着光纤(10)作为每个局部曲率和扭转角的函数的光纤(10)的3D形状的重建。