Manufacturing of Three-Dimensional Skull Model using Numerical Control Robot and its Clinical Approach.

数控机器人三维颅骨模型的制作及其临床方法。

• 批准号: 01440082
• 负责人: FUKUHARA Tatsuo
• 金额: $ 7.55万
• 依托单位: Showa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01440082/
• 关键词: Three-Dimensional Model; NC (Numerical Control) Robot; CAM (Computer Aided Manufactering); Computed Tomography; Orthognathic Surgery; ロボット; 復興モデル; 骨密度; ハイドロキシアパタイト; スキャナ-; 顎顔面外科手術; 切削用ドリル; NCロボット; 骨塩ファントム; 炭酸カルシウム; 三次元有限要素法

In order to establish a three-dimensional fabrication system for individual skull models of subjects with craniofacial deformities using three-dimensional Computed Tomography (CT) data, we developed a new milling system.In this study, to minimize the technique's disadvantages, a lower waged CN robot has recently been employed for milling the models.The skeletal images detected from CT slices were fed into the internal computer unit using digital image reader.Three-dimensional structure was reconstructed in main computer unit (NEC PC9801) and the contour of bone was line out to milling robot (Roland CAMM3). A three-axis, high-speed drill mills the plastic block into a three-dimensional model.The accuracy of models was tested in various cases, there is no differences existed between models and three-dimensional images.Using this technique, three dimensional planning and technique of simulation for craniofacial surgery become possible. The three-dimensional model is helpful in some situations in surgical planning for treatment of dentfacial deformities. When temporomandibular joint disorders are combined with facial deformity, the position of the joints can be determined on the model and the skeletal movements can be planned considering the occlusion and the temporomandibular joint. The clinical utility of this new technique should be defined by its applications including almost of orthognathic surgery.

为了利用三维计算机断层扫描 (CT) 数据为颅面畸形受试者的个体颅骨模型建立三维制造系统，我们开发了一种新的铣削系统。在本研究中，为了最大限度地减少该技术的缺点，最近采用了较低工资的 CN 机器人来铣削模型。从 CT 切片检测到的骨骼图像使用数字图像输入内部计算机单元 在主计算机（NEC PC9801）中重建三维结构，并将骨骼轮廓绘制到铣削机器人（Roland CAMM3）上。三轴高速钻头将塑料块铣削成三维模型。模型的准确性在各种情况下进行了测试，模型与三维图像之间不存在差异。利用该技术，颅面手术的三维规划和模拟技术成为可能。在某些情况下，三维模型有助于制定治疗牙面畸形的手术计划。当颞下颌关节疾病合并面部畸形时，可以在模型上确定关节的位置，并考虑咬合和颞下颌关节来规划骨骼运动。这项新技术的临床效用应由其应用（包括几乎正颌手术）来定义。