颧骨三维牵张器的初步研制(英文)

来源 :中国临床康复 | 被引量 : 0次 | 上传用户:dfsdfsafdsfds
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
背景:自从牵张成骨进入颌面外科以来,牵张器决定着牵张成骨的发展,突破直线牵张成骨的关键在于设计三维牵张器。目的:对颧骨外固定三维牵张器的设计和制作进行探讨。设计:研制一种新型外置式三维牵张器,进行羊颧骨三维牵张成骨实验。单位:安徽医科大学第一附属医院口腔科。材料:牵张器均为组织相容性好的生物材料钛制成,该牵张器包括支撑、牵张、变向3部分,另外,还有钛垫片、扳手、橡皮垫等配件。方法:10月龄羊,将离体羊头处理后制备离体羊颧骨标本,羊颧骨大体形状呈弧形,由一体四突构成,大体形状结构和骨连接与人颧骨相似。根据机械移动原理,设计两块可相对移动的支撑板,一定范围内在两个垂直方向任意移动,带动牵张杆改变牵张方向,进行三维牵张成骨,在离体羊颅骨模型上进行模拟牵张成骨。主要观察指标:在牵张杆的作用下,牵张板在三维方向移动以及牵张器整体稳定情况。结果:自行研制的三维缝牵张器重量30g,牵张杆前后向移动2cm左右,上下方向移动3.5cm左右,向外移动3cm左右,牵张控制准确,三维变向简便易行。结论:设计的外固定三维牵张器可以三维牵张,操作简便易行,控制准确。 BACKGROUND: Since distraction osteogenesis enters the maxillofacial surgery, the distractor determines the development of distraction osteogenesis. The key to breaking the straight-line distraction osteogenesis lies in the design of a three-dimensional distraction device. Objective: To explore the design and manufacture of three-dimensional distraction device with zygomatic external fixation. Design: To develop a new type of external three-dimensional distractors, three-dimensional sheep zygomatic distraction osteogenesis experiment. Unit: Department of Stomatology, First Affiliated Hospital of Anhui Medical University. MATERIALS: The distractor is made of titanium, a biomaterial with good tissue compatibility. The distractor includes support, stretch and change to 3 parts. In addition, there are accessories such as titanium washers, wrenches and rubber pads. Methods: The goat cheekbones were isolated from goats treated with sheep head for 10 month old sheep. The general shape of goat cheekbones was arcuate and consisted of one quadruple. The general shape and structure of the goat cheekbones were similar to that of human cheekbones. According to the principle of mechanical movement, two support plates that can be relatively moved are designed to move freely in two vertical directions within a certain range to drive the distraction rod to change the distraction direction and perform three-dimensional distraction osteogenesis to simulate the isolated sheep skull model Distraction osteogenesis. MAIN OUTCOME MEASURES: The distraction plate moved in three dimensions and the distractor overall stability under the action of a distraction rod. Results: The self-developed three-dimensional slit distractor weight 30g, distraction rod about 2cm before and after the move, move up and down about 3.5cm, outward movement of about 3cm, accurate stretch control, three-dimensional change is simple and easy. Conclusion: The design of external fixation of three-dimensional distraction device can be three-dimensional stretch, easy to operate, accurate control.
其他文献
在玻璃钢/复合材料的性能测试工作中,弯曲性能的测试工作量最多。其原因在于该试验方法简单易行,得出的综合性能有利于较快地对材料性能和制作工艺作出评价。然而,人们经常
那辆老旧的自行车一直停在那里,停在黄昏的斜阳里,车轮转动着的,是父亲亘古不变的爱。——题记窗外淅淅沥沥的小雨扰乱了我的心绪,望着滴答滴答走个不停的时钟,此刻心乱如麻,
本文利用DSC方法研究了11种表面活性剂与炸药RDX和HMX的相容性。得出了四种相容性较好的表面活性剂:SDS、SDBs、SDSa和AEs,并利用Kissinger法和Ozawa法求出了它们的动力学参
近年来,随着拍卖业务的不断扩展,拍卖的理论研究也随之深入,出现了很多对拍卖专业术语的讨论,讨论中涉及到《拍卖法》和拍卖实业操作习惯中的一些问题。例如“落槌价”和“
1.前 言 在机械工业中,齿轮是应用最广泛的传动机构之一。随着复合材料的兴起,设计和制造复合材料齿轮以代替或部分代替传统的金属齿轮这一想法,已引起人们广泛的重视。 复
前言近二十年来,以有机聚合物为基础的塑料,已广泛用作人体移植物。典型的例子有,在整形外科术中,用硅橡胶做血管和尿道,用聚氨基甲酸乙酯取代心脏的某些部位,用聚甲基丙烯
根据直流石墨化炉电极焙烧的模型实验数据归纳出电位分布函数。进一步理论推导,求得电流密度分布函数以及炉芯电阻计算式。这些规律可以作为改进炉子设计和生产的理论依据。
因着堵车,到嵊州的时候已经是晚上八点了。我晕车,再被热浪一蒸,就开始跌跌撞撞,只觉得天上星星忽远忽近,黯淡无光。众黄包车车夫一听要去三界,“哗”一声散得比围上来还要迅
导论一、基本要求:了解拍卖的含义、拍卖法的含义、拍卖法律体系的含义、拍卖法案例的概念、拍卖法的渊源、拍卖法案例的分类、拍卖法案例教学的功能、拍卖法案例分析教程的
本文介绍关于导电纤维及织物抗静电性能主要指标的测试方法。 This article describes the test methods for the main indicators of antistatic properties of conductive