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A design and manufacture using CAD and CAE system, and its clinical application

利用CAD和CAE系统设计制造及其临床应用

基本信息

批准号：
13470435
负责人：
SUGAHARA Toshio
金额：
$ 9.41万
依托单位：
OKAYAMA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13470435/
关键词：
DICOM 3-dimensional picture construction 3D CAD 3D finite element method 3D stress analysis 3D CAM carving Instrument artificial temporomandibular joint 顎関節 CAD CAM 睡眠時無呼吸症候群慢性関節リウマチ

项目摘要

We established the operation method of total replacement of artificial temporomandibular (TMJ) joint made from polyethylene titanium, and developed originality, have proved its functionality and its safety in clinical. And the fundamental form was used as the same ready-made type although the size of each artificial TMJ joint was different so that this developed artifivial TMJ joint could respond to the disease of various TMJ joints namely. However, it was pressed for the artificial TMJ joint which might encounter the case which arficular fossa made from polyethylene is fully fitted and canned install it easily depending on the form of a patients TMJ joint, and was adapted for the form of patient each by the necessity of designing and producing For this reason, using 3DCAD software, from the data which traced a patients CT image, 3D reconstruction of a TMJ part was performed, the artificial TMJ joint was designed on the image, and the method of producing the artificial TMJ joint by car … More ving was developed using CAM. However, since the 3D image construction by this method had complicated work, it built the 3D image directly from the DICOM data obtained at the time of CT image using 3D image construction software. Furthermore, the artificial TMJ joint produced on the picture appreciated, stress analysis at the time was performed using the 3D finite element method, and the durability and safety were checked. Moreover, in order to verify the reliability of this analysis load displacement curve was examined as compared with the value of an actual destructive examination and computer simulation, and the reliability was verified. The design of the artificial jaw joint in CAD and CAM and the outline of the producing method are as follows. Only the required part was taken out and it changed into the parasolid file, after taking CT image of the circumference of a jaw joint and building the obtained 3D DICOM data. The file was inputted to 3DCAD, it changed into the solid model, and the field data of a TMJ joint part was obtained. Artificial mandibular fossa and the artificial mandibular condyle head were created on 3DCAD based on the field data of a temporomandibular joint part. Total replacement of the TMJ joint model was created assembling each model, it appreciated using 3D stress analysis software, stress analysis at the time was performed and the durability of an artificial jaw joint and safety were checked. The data on 3DCAD of created artificial mandibular fossa and the artificial lower mandibular head was inputted to 3DCAM, the carving instrument was interlocked, the block of each material was carved and produced, and conformity was checked. Less

我们建立了聚乙烯钛人工颞下颌关节全置换的手术方法，并进行了创新性的研究，临床证实了其功能性和安全性。虽然每个人工TMJ关节的大小不同，但基本形式采用相同的现成型，使该发达的人工TMJ关节能够对各种TMJ关节的疾病作出反应。然而,它是要求人工颞下颌关节关节可能遇到的情况arficular窝由聚乙烯完全安装和安装罐头很容易根据患者颞下颌关节关节的形式,并被改编为病人的形式每个设计和生产的必要性出于这个原因,使用3 dcad软件,从数据追踪患者的CT影像,进行3 d重建颞下颌关节部分,人工颞下颌关节关节设计的形象,并开发了汽车制造人工TMJ关节的方法。但由于该方法三维图像构建工作复杂，直接利用三维图像构建软件从CT成像时获得的DICOM数据进行三维图像构建。在此基础上，对图片所示的人工TMJ关节进行了三维有限元分析，并对其耐久性和安全性进行了校核。此外，为了验证该分析的可靠性，将载荷位移曲线与实际破坏检测值和计算机模拟值进行了比较，验证了该分析的可靠性。人工颌关节在CAD和CAM中的设计及制作方法概述如下。取下颌关节周长的CT图像，构建得到的三维DICOM数据后，只取出需要的部分，将其变为副柱面文件。将该文件输入到3DCAD中，将其转换为实体模型，获得TMJ关节零件的现场数据。利用三维计算机辅助设计（3DCAD），根据颞下颌关节部分的现场数据，制作了人工下颌窝和人工下颌髁突头。将各模型组装在一起，制作全置换TMJ关节模型，利用三维应力分析软件进行应力分析，并对人工颌关节进行耐久性和安全性检查。将制作的人工下颌窝和人工下颌头的3DCAD数据输入到3DCAM中，将雕刻仪联锁，对每种材料的块进行雕刻和制作，并进行符合性检查。少