Hardy T L, Brynildson L R, Campbell J, Gray J, Nyman B
San Diego Gamma Knife Center, Scripps Memorial Hospital, San Diego, Calif., USA.
Stereotact Funct Neurosurg. 1996;66(1-3):75-80. doi: 10.1159/000099671.
An alternative method for frameless stereotactic localization which combines an articulating arm for spatial positioning with a three-dimensional laser beam localization technique will be presented. The moveable segments of the arm are counterbalanced, and allow it to smoothly glide to a given position. Micro-brakes in the arm joints permit rigid spatial fixation. The proximal end of the micro-laserbot attaches to the operating room table and the distal end, with the laser localizer apparatus, can be either free or attached to the operating microscope around the objective lens assembly. When attached to the surgical microscope, the laser light beams projected on the brain surface are seen while viewing the surgical field through the operating microscope. When used in this mode, the standard surgical microscope is converted into a stereotactic positional device, and the lasers guide the surgeon during the surgical dissection. Intersection of the laser beams indicate the spatial position of targets and volumes which are referenced and seen on the multi-modality computer imaging system. When not attached to the microscope, various other instruments can be affixed to the distal end of the micro-laserbot for stereotactic referencing.
将介绍一种无框架立体定向定位的替代方法，该方法将用于空间定位的关节臂与三维激光束定位技术相结合。臂的可移动部分经过平衡处理，使其能够平稳地滑动到给定位置。臂关节中的微制动器可实现刚性空间固定。微型激光定位仪的近端连接到手术台上，其远端带有激光定位装置，可以是自由的，也可以围绕物镜组件连接到手术显微镜上。当连接到手术显微镜时，通过手术显微镜观察手术视野时，可以看到投射在脑表面的激光束。在这种模式下使用时，标准手术显微镜被转换为立体定向定位装置，激光在手术解剖过程中引导外科医生。激光束的交点指示在多模态计算机成像系统上被参考和显示的目标和体积的空间位置。当不连接到显微镜时，可以将各种其他仪器固定到微型激光定位仪的远端用于立体定向参考。
