BDM | 用于正确修复眼窝缺损的创新眼眶植入物定位器
The following article is from 生物设计与制造BDM Author 生物设计与制造
内容简介
本Technical Note聚焦采用3D打印技术制造的创新植入物定位器设计与临床应用。眼眶壁和眶底的骨折必须适当处理,以避免出现严重疾病。这导致解剖重建工作特别具有挑战性:主要问题是植入物在眼窝上的正确形状、放置和方向。现有的新定制植入物成型模具,可用于塑造患者特定的植入物。然而,它仍然没有解决植入物在骨折的眶腔中的定位。本研究旨在设计、开发和评估一种创新的种植体定位器,以与上述种植体成形模具的优化版本一起使用。新的医疗器械将与钛网和去抗原骨植入物配合使用,具有易于使用、成本低,并且可以多次重复使用的优点。它由两个耦合和铰链手柄组成,用于抓取植入物,以及定位器本体,用于将植入物正确地放置和定向。本研究采用激光烧结技术在聚酰胺中打印模具和新器械。在种植体成形、定位和定向精度方面获得了良好的结果。植入物形状及其在中外侧方向的位置分别实现了0.1 mm和1.3 mm的精度,围绕眶缘的平均旋转不良角约为6°。
引用本文(点击最下方阅读原文可下载PDF)
Mandolini M, Brunzini A, Caragiuli M, et al., 2022. An innovative orbital implant positioner for the proper restoration of eye-socket defects. Bio-des Manuf (Early Access). https://doi.org/10.1007/s42242-022-00217-z
文章导读
图1 原设计(a)和新设计(b)的植入物与模具
图2 器械的设计:(a) 爆炸图;(b) 装配图;(c) 截面图;(d) 模拟经皮入路
图3 (a) 模具(模具和冲头)和异形植入物;(b) 植入物定位器固定在植入物中;(c) 植入物放置在眶腔内;(d) 植入物定位器放置在与假体颅骨的眶缘
参考文献
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Bio-Design and Manufacturing(中文名《生物设计与制造》),简称BDM,是浙江大学主办的专业英文季刊,主编杨华勇院士、崔占峰院士,2018年新创,目前已被SCI-E等检索,最新影响因子为5.887。
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收稿方向 :机械工程(3D打印及生物处理工程等)、生物墨水与配方、组织与器官工程、医学与诊断装置、生物产品设计等。
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