Automatic calibration system for computer-aided surgical instruments
    5.
    发明授权
    Automatic calibration system for computer-aided surgical instruments 有权
    计算机辅助手术器械自动校准系统

    公开(公告)号:US06996487B2

    公开(公告)日:2006-02-07

    申请号:US10220303

    申请日:2001-03-15

    IPC分类号: A61B5/05

    摘要: A system for automatic calibration of instruments (S) having varying cross-sectional dimensions within a predetermined range and having detectable elements (110, 112, 113, 114) thereon for computer-aided surgery, comprising a calibration base (C) having detectable elements (43, 44, 46, 48) secured thereto for detecting a position and an orientation thereof in space by sensors (204) connected to a position calculator (202). The calibration base is adapted to receive and to releasably secure a working shaft (100) of any of the instruments (S) and provides an abutting surface (14) for a tip (102) thereof in such a way that a position and orientation of the tip (102) of the instrument (S) secured therein is calculable when working shaft cross-section dimensions thereof are known. The position calculator (202) receives instrument data (214) and calibration data (218) from an operator through a user interface (206) and stores the instrument data (214) and calibration data (218) for subsequent calibrations.

    摘要翻译: 一种用于自动校准在预定范围内具有变化的横截面尺寸并且具有用于计算机辅助手术的可检测元件(110,112,113,114)的仪器(S)的系统,包括具有可检测元件的校准基座(C) (43,44,46,48),用于通过连接到位置计算器(202)的传感器(204)检测其在空间中的位置和方位。 校准基座适于接收和可释放地固定任何仪器(S)的工作轴(100),并且提供用于其尖端(102)的邻接表面(14),使得位置和方位 固定在其中的仪器(S)的尖端(102)可以在已知工作轴的横截面尺寸时计算。 位置计算器(202)通过用户接口(206)从操作员接收仪器数据(214)和校准数据(218),并存储用于后续校准的仪器数据(214)和校准数据(218)。

    Method and apparatus for calibrating circular objects using a computer tracking system
    6.
    发明授权
    Method and apparatus for calibrating circular objects using a computer tracking system 有权
    使用计算机跟踪系统校准圆形物体的方法和装置

    公开(公告)号:US07302355B2

    公开(公告)日:2007-11-27

    申请号:US11434787

    申请日:2006-05-17

    IPC分类号: G01P21/00 G06F19/00 G01C17/38

    CPC分类号: G01B21/042 A61B17/1746

    摘要: A method of calibrating a circular portion of an object, such as to determine the center point of the object, is provided. The method includes determining spatial coordinates of at least two points on a circumferential edge of the circular portion of the object, and calculating the center point of the circular portion using the spatial coordinates of the two points and a geometric parameter representative of the diameter of the circular portion. A calibration device and system are also provided for use with a computer tracking system in order to calibrate such an object having a circular portion.

    摘要翻译: 提供了校准物体的圆形部分的方法,例如确定物体的中心点。 该方法包括确定物体的圆形部分的圆周边缘上的至少两个点的空间坐标,以及使用两个点的空间坐标来计算圆形部分的中心点,以及表示圆形部分的直径的几何参数 圆形部分。 还提供校准装置和系统以与计算机跟踪系统一起使用,以校准具有圆形部分的这种物体。

    Interface apparatus for passive tracking systems and method of use thereof
    7.
    发明授权
    Interface apparatus for passive tracking systems and method of use thereof 有权
    用于被动跟踪系统的接口装置及其使用方法

    公开(公告)号:US07668584B2

    公开(公告)日:2010-02-23

    申请号:US10524733

    申请日:2003-08-11

    IPC分类号: A61B5/05

    摘要: An interface apparatus (20) for tracking by a tracking system (40) of an object(s) in space for position and orientation and for interacting with the tracking system (40). The interface apparatus (30) comprises passive detectable devices (12,14,16,22) trackable for position by the tracking system (40). A mounting device (10,24) receives the passive detectable devices (12,14,16,22) in a known geometry, and is secured to the object(s) such that a position and orientation of the object(s) is calculable by the tracking system (40) as a function of a tracking of the known geometry of the passive detectable devices (12,14,16,22). One of the passive detectable devices (22) is displaceable with respect to the object(s). A displacement of the passive detectable device (22) with respect to the object(s) is detectable to initiate an interaction with the tracking system (40) while maintaining the tracking of the object(s).

    摘要翻译: 一种用于跟踪系统(40)的跟踪系统(40)的接口装置(20),用于位置和方向的空间中的物体,并与跟踪系统(40)相互作用。 接口装置(30)包括由跟踪系统(40)可跟踪位置的无源可检测设备(12,14,16,22)。 安装装置(10,24)以已知的几何形状接收被动检测装置(12,14,16,22),并被固定到物体上,使得可计算物体的位置和取向 作为跟踪被动可检测装置(12,14,16,22)的已知几何形状的函数的跟踪系统(40)。 被动可检测装置(22)中的一个可相对于物体移位。 可检测到被动可检测装置(22)相对于物体的位移,以便在跟踪物体的同时启动跟踪系统(40)的相互作用。

    Method for locating the mechanical axis of a femur
    8.
    发明授权
    Method for locating the mechanical axis of a femur 有权
    定位股骨的机械轴的方法

    公开(公告)号:US07427272B2

    公开(公告)日:2008-09-23

    申请号:US10618846

    申请日:2003-07-15

    IPC分类号: A61B5/103

    摘要: There is described a method for determining a mechanical axis of a femur using a computer aided surgery system having an output device for displaying said mechanical axis, the method comprising: providing a position sensing system having a tracking device capable of registering instantaneous position readings and attaching the tracking device to the femur; locating a center of a femoral head of the femur by moving a proximal end of the femur to a first static position, acquiring a fixed reading of the first static position, repeating the moving and the acquiring for a plurality of static positions; and locating the centre by determining a central point of a pattern formed by the plurality of static positions; digitizing an entrance point of the mechanical axis at a substantially central position of the proximal end of the femur; and joining a line between the entrance point and the center of rotation to form the mechanical axis.

    摘要翻译: 描述了一种使用具有用于显示所述机械轴的输出装置的计算机辅助手术系统来确定股骨的机械轴的方法,所述方法包括:提供具有能够记录瞬时位置读数和附着的跟踪装置的位置感测系统 跟踪装置到股骨; 通过将股骨的近端移动到第一静态位置来定位股骨的股骨头的中心,获取第一静态位置的固定读数,重复多个静态位置的移动和获取; 以及通过确定由所述多个静态位置形成的图案的中心点来定位所述中心; 将机械轴的入口点在股骨近端的基本中心位置进行数字化; 并且在入口点和旋转中心之间连接线以形成机械轴。