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    • 7. 发明申请
    • INSTRUMENT NAVIGATION IN COMPUTER-ASSISTED HIP SURGERY
    • 计算机辅助髋关节手术中的仪器导航
    • WO2016070288A1
    • 2016-05-12
    • PCT/CA2015/051153
    • 2015-11-06
    • ORTHOSOFT INC.
    • FALARDEAU, BrunoVALIN, MyriamPELLETIER, BenoitPARADIS, François
    • A61B19/00A61B34/20A61B34/10A61B90/30
    • A61F2/4609A61B17/1666A61B34/20A61B2034/2048A61B2090/363
    • A computer-assisted surgery system comprises a calibrating instrument adapted to be applied to a pelvis in a known manner, and a surgical instrument. A computer-assisted processor unit operating a surgical assistance procedure and comprises at least one portable inertial sensor unit configured to be connected to the at least one calibrating instrument and the at least one surgical instrument, the portable inertial sensor unit outputting readings representative of its orientation. A geometrical relation data module provides a geometrical relation data between the orientation of the portable inertial sensor unit, of the calibrating instrument and of the surgical instrument. A coordinate system module sets a coordinate system of the pelvis in which an anterior-posterior axis of the pelvis is generally in a direction of gravity, and in which a medio-lateral axis of the pelvis is obtained from readings of the at least one portable inertial sensor unit on the calibrating instrument using the geometrical relation data therebetween. A tracking module tracks movements of the at least one surgical instrument relative to the coordinate system using readings from the inertial sensor unit on the surgical instrument using the geometrical relation data therebetween, and calculates navigation data for the movements, the navigation data relating the orientation of the surgical instrument to the orientation of the pelvis. An interface outputs the navigation data.
    • 计算机辅助手术系统包括适于以已知方式应用于骨盆的校准装置和外科器械。 一种操作外科手术辅助程序的计算机辅助处理器单元,包括至少一个便携式惯性传感器单元,该便携式惯性传感器单元被配置为连接到所述至少一个校准仪器和所述至少一个外科器械,所述便携式惯性传感器单元输出表示其取向的读数 。 几何关系数据模块提供便携式惯性传感器单元,校准仪器和外科器械的取向之间的几何关系数据。 坐标系统模块设置骨盆的坐标系,其中骨盆的前后轴线通常在重力方向上,并且其中从至少一个便携式的读取器获得骨盆的中间轴线 惯性传感器单元在校准仪器上使用它们之间的几何关系数据。 跟踪模块使用来自外科手术仪器上的惯性传感器单元的读数使用其间的几何关系数据跟踪相对于坐标系的至少一个外科器械的运动,并且计算运动的导航数据,导航数据与 手术器械取向骨盆。 一个接口输出导航数据。