BONE TRACKING WITH A GYROSCOPE SENSOR IN COMPUTER-ASSISTED SURGERY
    21.
    发明申请
    BONE TRACKING WITH A GYROSCOPE SENSOR IN COMPUTER-ASSISTED SURGERY 有权
    用计算机辅助手术中的GYROSCOPE传感器进行骨跟踪

    公开(公告)号:US20120029389A1

    公开(公告)日:2012-02-02

    申请号:US12846934

    申请日:2010-07-30

    IPC分类号: A61B5/11 G01M19/00

    摘要: A system tracks an object in computer-assisted surgery. The system comprises a sensor unit secured to the femur. Gyroscopes on the sensor unit produce readings related to orientation data about three axes of rotation. A tracking unit receives the gyroscope readings. An axis calibrator on the tracking unit comprises a calculator for adding at least part of the gyroscope readings for specific movements of the object about a desired axis. An axis normalizer on the tracking unit determines an orientation of the desired axis with respect to the sensor unit from the added gyroscope readings. A tracking processor tracks the desired axis from the gyroscope readings. An interface displays orientation data for the object from a tracking of the desired axis. A method for tracking an object with a gyroscope sensor unit is also provided.

    摘要翻译: 系统在计算机辅助手术中跟踪对象。 该系统包括固定到股骨的传感器单元。 传感器单元上​​的陀螺仪产生与三个旋转轴相关的取向数据的读数。 跟踪单元接收陀螺仪读数。 在跟踪单元上的轴校准器包括一个计算器,用于根据期望的轴对物体的特定运动添加至少部分陀螺仪读数。 跟踪单元上的轴线定标器根据增加的陀螺仪读数确定所需轴线相对于传感器单元的方向。 跟踪处理器从陀螺仪读数跟踪所需的轴。 一个界面显示了从所需轴的跟踪中的对象的方向数据。 还提供了一种用陀螺仪传感器单元跟踪物体的方法。

    Method and system for planning/guiding alterations to a bone
    24.
    发明授权
    Method and system for planning/guiding alterations to a bone 有权
    规划/指导骨骼改变的方法和系统

    公开(公告)号:US08265790B2

    公开(公告)日:2012-09-11

    申请号:US12410884

    申请日:2009-03-25

    摘要: A computer-assisted surgery system for planning/guiding alterations to a bone in surgery, comprises a trackable member adapted to be secured to the bone. The trackable member has a first inertial sensor unit producing orientation-based data for at least two degrees of freedom in orientation of the trackable member A positioning block is adapted to be secured to the bone, with at least an orientation of the positioning block being adjustable once the positioning block is secured to the bone to reach a selected orientation at which the positioning block is used to guide tools in altering the bone. The positioning block has a second inertial sensor unit producing orientation-based data for at least two degrees of freedom in orientation of the positioning block. A processing system providing an orientation reference associating the bone to the trackable member comprises a signal interpreter for determining an orientation of the trackable member and of the positioning block from the orientation-based data. A parameter calculator calculates alteration parameters related to an actual orientation of the positioning block with respect to the bone as a function of the orientation reference and of the orientation of the positioning block.

    摘要翻译: 用于规划/指导对手术中的骨骼的改变的计算机辅助手术系统包括适于固定到骨骼上的可跟踪构件。 可跟踪构件具有第一惯性传感器单元,其产生用于可追踪构件的取向的至少两个自由度的基于定向的数据。定位块适于固定到骨骼,至少定位块的取向可调节 一旦定位块被固定到骨头上以达到选定的方位,在该方向上定位块用于引导改变骨骼的工具。 该定位块具有第二惯性传感器单元,该第二惯性传感器单元产生用于定位块的取向的至少两个自由度的基于取向的数据。 提供将骨骼与可跟踪构件相关联的定向参考的处理系统包括信号解释器,用于根据基于取向的数据确定可跟踪构件和定位块的取向。 参数计算器计算与定位块相对于骨骼的实际方向相关的改变参数作为定位参考的方向参考和定位块的取向的函数。

    Registration pointer with interchangeable tip and method
    25.
    发明授权
    Registration pointer with interchangeable tip and method 有权
    注册指针与可互换的提示和方法

    公开(公告)号:US07274958B2

    公开(公告)日:2007-09-25

    申请号:US10263772

    申请日:2002-10-04

    IPC分类号: A61B5/05

    摘要: A registration pointer for registering points of surfaces of bodily elements in computer-assisted surgery, comprising a handle for being manipulated by a pointer operator. A stem is connected to the handle and has a first and a second tip configurations each having a respective use relating to a registration of points on specified bodily elements. A detectable device is secured to the stem, and is adapted to be tracked in space for position and orientation by a sensing apparatus. A position of the tip configurations with respect to the detectable device is determinable such that a position of the tip configurations is calculable as a function of the position and orientation of the detectable device. The tip configurations are chosen to register points on given bodily elements as a function of the respective use, by recording a position of points of contact between the tip configurations and the given bodily element.

    摘要翻译: 一种用于在计算机辅助手术中记录身体元件的表面点的注册指针,包括由指针操作器操纵的手柄。 杆连接到手柄并且具有第一和第二尖端配置,每个顶端配置具有与指定的身体元件上的点的对准相关的使用。 可检测装置被固定到杆上,并且适于在空间中跟踪通过感测装置的位置和取向。 相对于可检测装置的尖端构造的位置是可确定的,使得尖端构造的位置可以作为可检测装置的位置和取向的函数计算。 通过记录尖端构造与给定身体元件之间的接触点的位置,选择尖端配置作为相应使用的函数来记录给定身体元件上的点。

    Method for placing multiple implants during a surgery using a computer aided surgery system
    26.
    发明申请
    Method for placing multiple implants during a surgery using a computer aided surgery system 审中-公开
    使用计算机辅助手术系统在手术期间放置多个植入物的方法

    公开(公告)号:US20060015030A1

    公开(公告)日:2006-01-19

    申请号:US10526018

    申请日:2003-08-25

    IPC分类号: A61B5/05

    摘要: A method and an apparatus are described for placing multiple implants during a surgery, the apparatus comprising: a display for an image representing a patient's anatomy; a database of virtual implants from which a user selects; a tool for the user to manipulate in order to select the virtual implants from the database and place the virtual implants in the image at desired locations; and a positioning module for calculating a position of a first of the virtual implants with respect to a second of the virtual implants and allow the user to align the first and second virtual implants with respect to each other, for generating relative position data as a function of the calculated position, and for sending the relative position data to the display.

    摘要翻译: 描述了一种用于在手术期间放置多个植入物的方法和装置,该装置包括:用于表示患者解剖结构的图像的显示器; 用户选择的虚拟植入物的数据库; 用于使用户操作以便从数据库中选择虚拟植入物并将虚拟植入物置于所需位置的图像中的工具; 以及定位模块,用于相对于第二虚拟植入物计算第一虚拟植入物的位置,并允许使用者相对于彼此对准第一和第二虚拟植入物,以产生作为功能的相对位置数据 的计算位置,并将相对位置数据发送到显示器。

    Hip replacement in computer-assisted surgery
    29.
    发明授权
    Hip replacement in computer-assisted surgery 有权
    髋关节置换术在计算机辅助手术中

    公开(公告)号:US08790351B2

    公开(公告)日:2014-07-29

    申请号:US12249393

    申请日:2008-10-10

    IPC分类号: A61B17/58 A61B17/60 A61F2/00

    摘要: A system for calculating a position and orientation of an acetabular cup in computer-assisted surgery comprises a first trackable reference secured to a pelvis, with a frame of reference being associated with the first trackable reference. A device is positionable between a femoral neck and the acetabulum of the pelvis in a known relation, the device having a second trackable reference. Sensors track the trackable references for position and orientation. A position/orientation calculator calculates a position and orientation of the frame of reference and of the device and for determining an orientation of the neck axis with respect to the frame of reference from the known relation at a desired position of the femur. An implant position/orientation calculator provides cup implanting information with respect to the orientation of said neck axis as a function of the tracking for position and orientation of at least the first trackable reference.

    摘要翻译: 用于计算计算机辅助手术中的髋臼杯的位置和取向的系统包括固定到骨盆的第一可跟踪参考,其中参考系与第一可追踪参考相关联。 一种装置可以以已知的关系定位在股骨颈与骨盆的髋臼之间,该装置具有第二可追踪参考。 传感器跟踪可追踪的位置和方位。 位置/姿态计算器计算参考系和装置的位置和方向,并且用于根据在股骨的期望位置处的已知关系来确定颈部轴线相对于参照系的取向。 植入物位置/取向计算器提供相对于所述颈部轴线的取向的杯子注入信息,作为至少第一可追踪参考物的位置和取向的跟踪的函数。