BONE TRACKING WITH A GYROSCOPE SENSOR IN COMPUTER-ASSISTED SURGERY
    1.
    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
    3.
    发明申请
    METHOD AND SYSTEM FOR PLANNING/GUIDING ALTERATIONS TO A BONE 有权
    用于对骨骼进行计划/引导改变的方法和系统

    公开(公告)号:US20090248044A1

    公开(公告)日:2009-10-01

    申请号:US12410884

    申请日:2009-03-25

    IPC分类号: A61B19/00 A61F5/00

    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。

    Tool and method for digital acquisition of a tibial mechanical axis
    4.
    发明授权
    Tool and method for digital acquisition of a tibial mechanical axis 有权
    用于数字采集胫骨机械轴的工具和方法

    公开(公告)号:US08551108B2

    公开(公告)日:2013-10-08

    申请号:US12872469

    申请日:2010-08-31

    IPC分类号: A61B17/58

    摘要: A tool for digitizing a mechanical axis of a tibia using a computer-assisted surgery system is described. The tool includes upper and lower mounting ends interconnected by an alignment rod extending therebetween. The upper mounting end is releasably fastenable to an upper reference point on a tibial plateau and the lower mounting end includes a self-centering malleoli engaging mechanism having opposed caliper arms displaceable in a common plane relative to each other for clamping engagement with the medial and lateral malleoli of the ankle. At least one trackable member is mounted to the alignment rod of the tool and is in communication with the computer assisted surgery system for providing at least orientation information of the alignment rod. The mechanical axis of the tibia is parallel to the alignment rod and extends between the upper and lower reference points when the tool is mounted on the tibia.

    摘要翻译: 描述了使用计算机辅助手术系统对胫骨的机械轴进行数字化的工具。 该工具包括通过在它们之间延伸的对准杆相互连接的上部和下部安装端。 上安装端可释放地紧固到胫骨平台上的上参考点,并且下安装端包括自对中的踝关节接合机构,其具有相对的卡钳臂,所述相对的卡钳臂可在共同的平面中相对于彼此移位,以与内侧和外侧夹紧接合 脚踝的踝骨。 至少一个可跟踪构件安装到工具的对准杆上并且与计算机辅助手术系统连通,用于提供对准杆的至少取向信息。 当工具安装在胫骨上时,胫骨的机械轴平行于对准杆并在上参考点和下参考点之间延伸。

    MULTIFACETED TRACKER DEVICE FOR COMPUTER-ASSISTED SURGERY
    7.
    发明申请
    MULTIFACETED TRACKER DEVICE FOR COMPUTER-ASSISTED SURGERY 有权
    用于计算机辅助手术的多功能跟踪器设备

    公开(公告)号:US20070100325A1

    公开(公告)日:2007-05-03

    申请号:US11555947

    申请日:2006-11-02

    IPC分类号: A61B17/00

    摘要: A tracker device of the type is associated with a surgical instrument and being trackable in space by a CAS system such that a position of the surgical instrument is calculable. A support is adapted to be connected to the surgical instrument. Optical elements are mounted to the support in a first pattern so as to be detectable by the CAS system along a first range of visibility. Other optical elements are mounted to the support in a second pattern so as to be detectable by the CAS system along a second range of visibility, with the first range of visibility and the second range of visibility having at most a common portion, whereby a position of the surgical instrument is tracked within the first and the second range of visibility as a function of the detection of any one of the patterns of the optical elements.

    摘要翻译: 该类型的跟踪器装置与外科器械相关联,并且可通过CAS系统在空间中跟踪,使得可计算手术器械的位置。 支架适于与外科器械连接。 光学元件以第一图案安装到支撑件上,以便沿着可见度的第一范围由CAS系统检测。 其他光学元件以第二图案安装到支撑件上,以便沿着可见度的第二范围由CAS系统检测,第一可见度范围和第二可见度范围具有至多公共部分,由此位置 作为检测光学元件的任何一种图案的函数,在第一和第二可见度范围内追踪外科器械。

    Surgical universal positioning block and tool guide
    10.
    发明授权
    Surgical universal positioning block and tool guide 有权
    手术通用定位块和刀具导轨

    公开(公告)号:US07736368B2

    公开(公告)日:2010-06-15

    申请号:US11062737

    申请日:2005-02-23

    IPC分类号: A61B17/58

    摘要: A positioning block (10) for use in total knee replacement surgery, permitting five degrees-of-freedom movement relative to a bone element (39) to which it is fixed. The positioning block (10) comprises a rotational mounting element (14) that is removably engaged to the bone element such that the mounting element (14) is selectively rotatable relative to the bone element, about three substantially perpendicular axes of rotation. A guide body portion (12) is engaged with the mounting element (14) such that it is translatable relative thereto along a proximal-distal axis (43) and an anterior-posterior axis (47), while being rotationally fixed relative to the mounting element (14) such that the guide body portion (12) and the mounting element (14) rotate together relative to the bone element (39).

    摘要翻译: 一种用于全膝关节置换手术的定位块(10),允许相对于其被固定的骨元件(39)进行五自由度运动。 定位块(10)包括可拆卸地接合到骨元件的旋转安装元件(14),使得安装元件(14)可相对于骨元件选择性地旋转,大约三个基本垂直的旋转轴线。 引导主体部分(12)与安装元件(14)接合,使得其相对于其相对于近端 - 远端轴线(43)和前 - 后轴线(47)可相对于其相对地平移,同时相对于安装件 元件(14),使得引导体部分(12)和安装元件(14)相对于骨元件(39)一起旋转。