Method for Permanent Calibration Based on Actual Measurement
    1.
    发明申请
    Method for Permanent Calibration Based on Actual Measurement 有权
    基于实际测量的永久校准方法

    公开(公告)号:US20070265715A1

    公开(公告)日:2007-11-15

    申请号:US10593563

    申请日:2005-04-26

    IPC分类号: G06F7/66 G06F19/00

    摘要: There is described a method of manufacturing a device to be used with a computer-aided surgery system, a method of calibrating the device, and the device itself. After fabrication, the device is measured to obtain true parameters thereof. The true parameters are stored on a storage medium associated with the device and include measurement data of high precision relating to dimensions of the device as well as to relative positioning of a tracker on the device with respect to the device. The true parameters are entered into the system and when the tracker is located in the 3D environment, the device can then be located in the 3D environment with a high degree of precision using the true parameters.

    摘要翻译: 描述了一种制造与计算机辅助手术系统一起使用的装置的方法,校准装置的方法和装置本身。 在制造之后,测量该装置以获得其真实参数。 真实参数存储在与设备相关联的存储介质上,并且包括与设备的尺寸相关的高精度的测量数据以及跟踪器相对于设备在设备上的相对定位。 真实参数输入到系统中,并且当跟踪器位于3D环境中时,可以使用真实参数以高精确度将设备定位在3D环境中。

    CAS modular body reference and limb position measurement system
    2.
    发明申请
    CAS modular body reference and limb position measurement system 审中-公开
    CAS模块体参考和肢体位置测量系统

    公开(公告)号:US20060015018A1

    公开(公告)日:2006-01-19

    申请号:US11196754

    申请日:2005-08-04

    IPC分类号: A61B5/00

    摘要: A surgical bone reference assembly for communication with a CAS system, comprises a bone anchor fastenable to a bone element, an adjustable support and a trackable member that is located and tracked in three dimensional space by the CAS system. The support is removably fastenable to the bone anchor member and permits variable positioning relative to the bone anchor member. The support is intra-operatively detachable from and re-fastenable to the bone anchor member. A method of using a CT-free CAS system for determining a change in position of an un-tracked target limb is also provided. The method comprises engaging the trackable bone reference member to another bone element, locating and digitizing a landmark on the target limb, digitizing the landmark again following joint reduction, and determining at least one of a post-joint reduction limb length discrepancy and a target limb medio-lateral offset.

    摘要翻译: 用于与CAS系统连通的手术骨骼基准组件包括可固定到骨骼元件的骨锚固件,可调节支撑件和可通过CAS系统定位和跟踪在三维空间中的可跟踪构件。 支撑件可移除地紧固到骨锚固构件并且允许相对于骨锚固构件的可变定位。 支撑件可操作地从骨锚固构件中拆卸并重新紧固。 还提供了一种使用无CT的CAS系统来确定未跟踪的目标肢体的位置变化的方法。 该方法包括将可追踪骨骼参考构件接合到另一个骨骼元件,定位和数字化目标肢体上的地标,并且在关节减小之后再次数字化地标,并且确定关节后缩短肢体长度差异和目标肢体中的至少一个 中位偏移。