| 经鼻颅底手术器械弯曲结构的优化设计 |
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| 引用本文： | 贾英伟,毛琳,宋成利,吕坤勇,王东.经鼻颅底手术器械弯曲结构的优化设计[J].生物医学工程学进展,2019(1):6-10. |
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| 作者姓名： | 贾英伟 毛琳 宋成利 吕坤勇 王东 |
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| 作者单位： | 上海理工大学机械工程学院;上海理工大学医疗器械与食品学院;上海科技大学信息科学与技术学院;第二军医大学附属长海医院消化内科 |
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| 基金项目： | 国家自然科学基金重点项目(51735003);上海市科研计划项目(18441900200) |
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| 摘 要： | 解决目前经鼻内镜颅底手术中存在的诸多难题,设计一种新型的可弯器械,对其弯曲结构进行几何分析及有限元分析,得到最优化尺寸参数,并验证其安全性。样机模拟手术实验表明,该弯曲结构最佳尺寸参数为切槽深度1.1 mm﹑宽度0.35 mm,并选择有槽底倒角的加工方式,在最大弯曲角度下,应力及应变均在弹性形变范围内,因此在使用过程中是安全可靠的。该器械的使用,可以解决经鼻颅底手术的操作难题,提高临床手术效果。
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| 关 键 词： | 经鼻内镜颅底手术 弯曲结构 有限元分析 优化设计 |
Optimization Design of a Novel Flexible Instrument for Endoscopic Skull Base Surgery |
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| Authors: | JIA Yingwei MAO Lin SONG Chengli LYU Kunyong WANG Dong |
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| Institution: | (School of Mechanical Engineering, University of Shanghai for Science and Technology,Shanghai,200093;School of Medical Instrument and Food Engineering,University of Shanghai for Science and Technology,Shanghai,200093;School of Information Science and Technology, Shanghai Tech University,Shanghai,201210;Department of Gastroenterology, Changhai Hospital,The Second Military Medical University,Shanghai, 200433) |
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| Abstract: | To solve the problems of narrow space in nasal cavity and removing tumor tissue completely in the endoscopic skull base surgery, a novel flexible instrument was designed. Its bend structure was analyzed by geometric method and finite element analysis to obtain the optimal size parameters, and the security of this flexible instrument was also verified. The simulated operation experiment of the prototype showed that the optimal size parameters of the bend structure were groove cutting depth of 1.1 mm and width of 0.35 mm, and the processing method with groove bottom chamfering was selected. Under the maximum bending angle, the stress and strain of this instrument were within the range of elastic deformation. So, it is safe and reliable in the using process. Applying this instrument can solve the operation problems of nasal skull base surgery and improve the effect of clinical operation. |
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| Keywords: | endoscopic skull base surgery bend structure finite element analysis optimization design |
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