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首页> 外国专利> METHOD FOR OPTICAL MEDICAL NAVIGATION SYSTEM APPLICATION FOR VISUALIZATION AND QUANTITATIVE EVALUATION OF QUALITY OF FRAGMENTS REPOSITION IN CASE OF PELVIC BONE FRACTURE

METHOD FOR OPTICAL MEDICAL NAVIGATION SYSTEM APPLICATION FOR VISUALIZATION AND QUANTITATIVE EVALUATION OF QUALITY OF FRAGMENTS REPOSITION IN CASE OF PELVIC BONE FRACTURE

机译：骨盆骨折断口复位的可视化和定量评价的光学医学导航系统应用方法

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摘要

FIELD: medicine.;SUBSTANCE: third positioner with passive markers is installed on the movable part of the pelvic bone. On the X-ray computer tomograph, images of the fixed part of the pelvic bone with a reference positioner with passive markers installed thereon and a movable part of the pelvic bone with the third positioner with passive markers installed thereon are recorded. At the workstation of the X-ray computer tomograph, image processing is performed and a 3D segmented image of the fixed part of the pelvic bone with a reference positioner with passive markers installed thereon and of the movable part of the pelvic bone with the third positioner with passive markers installed thereon, as well as of the fracture region is plotted. The processing results are transferred to the optical medical navigation system computer via the computer network and displayed on the screen to the surgeon for planning and subsequent management of surgical instruments during operation. On the display screen, the surgeon indicates the points of compliance in the fracture region on the 3D segmented image of the fixed part of the pelvic bone and the moving part of the pelvic bone, which, when combining the movable part of the pelvic bone and the fixed part of the pelvic bone during surgery, should be maximally approximated. During the operation using the optical medical navigation system, the reference positioner with passive markers and the third positioner with passive markers installed on the patient and visible by the stereo video cameras of the optical medical navigation system are geometrically linked to the segmented 3D images of the reference positioner with passive markers and the third positioner with passive markers and corresponding segmented fixed portion of the pelvic bone and the movable part of the pelvic bone. During surgery, the moving part of the pelvic bone and the fixed part of the pelvic bone are brought together by "manual" actions and set in the position for subsequent fixation with a screw. On the display, a 3D segmented image of the fixed part of the pelvic bone and the movable part of the pelvic bone is displayed in real time with the information on the distances between the correspondence points in the fracture region that must be maximally approximated to ensure the alignment of the fixed part of the pelvic bone and the movable part of the pelvic bone. The second positioner with passive markers is installed on the drill. To direct the needle through the desired areas in the fixed part of the pelvic bone and the movable part of the pelvic bone, the direction of needle drilling is determined by a schematic image of the passive markers of the first positioner with the passive markers located on the guiding needle and the depth of needle drilling according to the schematic drawing of the passive markers of the second positioner with the passive markers with respect to the 3D image of the fixed part of the pelvic bone and the movable part of the pelvic bone displayed of the optical medical navigation system screen. Further the needle is drilled into the fixed part of the pelvic bone and the movable part of the pelvic bone. The guiding needle is removed. A screw fixing the movable part of the pelvic bone to the fixed part of the pelvic bone is installed along the needle. The needle is removed and the wound is sutured.;EFFECT: reduced radiation load on the patient, increased functionality of the method.;2 cl, 3 dwg
机译：领域：医药;实体：带被动标记的第三个定位器安装在骨盆骨的可移动部分。在X射线计算机断层扫描仪上，记录骨盆骨的固定部分的图像，该骨盆骨的固定部分具有在其上安装有无源标记的参考定位器，在骨盆骨的可移动部分上具有其上安装有无源标记的第三定位器。在X射线计算机断层扫描仪的工作站上，执行图像处理，并在其上安装有带有无源标记的参考定位器的骨盆骨固定部分以及在第三位置的骨盆骨可移动部分的3D分割图像绘制了安装有被动标记的骨折部位的图像。处理结果通过计算机网络传输到光学医疗导航系统计算机，并在屏幕上显示给外科医生，以计划和在手术期间对手术器械进行管理。在显示屏上，外科医生在骨盆骨固定部分和骨盆活动部分的3D分割图像上指示骨折区域的顺应性点，这些点在结合骨盆活动部分和手术期间骨盆骨的固定部分应最大程度地近似。在使用光学医疗导航系统的操作过程中，具有无源标记的参考定位器和具有无源标记的第三定位器安装在患者身上，并且由光学医疗导航系统的立体摄像机可见，并在几何上链接到经分割的3D图像具有被动标记的参考定位器和具有被动标记的第三定位器以及骨盆骨的相应分段固定部分和骨盆骨的可移动部分。在外科手术期间，通过“手动”动作将骨盆骨的活动部分和骨盆骨的固定部分放在一起，并放置在随后用螺钉固定的位置。在显示器上，实时显示骨盆骨固定部分和骨盆活动部分的3D分割图像，并且必须最大程度地逼近骨折区域中对应点之间的距离信息，以确保骨盆骨固定部分和骨盆活动部分的对齐。带有被动标记的第二个定位器安装在钻头上。为了将针引导穿过骨盆固定部分和骨盆活动部分的所需区域，针钻的方向由第一定位器的无源标记的示意图确定，其中无源标记位于根据第二定位器的被动标记的示意图绘制的引导针和进针深度，其中被动标记相对于显示的骨盆固定部分和骨盆活动部分的3D图像光学医疗导航系统屏幕。此外，将针钻入骨盆骨的固定部分和骨盆骨的可移动部分。导针被卸下。沿针安装有将骨盆骨的可动部分固定到骨盆骨的固定部分的螺钉。移除针头并缝合伤口。效果：减轻了患者的放射负荷，增加了该方法的功能性; 2 cl，3 dwg

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