摘要
切削效率低,准确率差是影响临床骨科手术的重要问题之一。传统手术刀在骨切割方面存在一定缺陷,易造成周围机体损伤。本研究提出了超声骨刀的整体设计优化方法,基于超声骨刀工作原理,结合超声换能器、超声变幅杆的设计方法,对超声骨刀进行了整体结构的设计和优化,运用有限元软件进行了模态分析和谐响应分析,并通过实验验证了设计方法的合理性。最终超声骨刀的工作频率为40619 Hz,振幅约为110μm,基本满足临床需要,为超声骨刀的后续设计优化提供了理论支持。
In clinical orthopaedic surgery,low cutting efficiency and low accuracy are important issues affecting plastic surgery.Traditional scalpels have certain defects in bone cutting,which easily cause damage to the surrounding body.We proposed the overall design optimization method of ultrasound bone scalpel.Based on the working principle of ultrasound bone scalpel,combined with the design method of ultrasonic transducer and ultrasonic horn,the overall structure design and optimization of ultrasound bone scalpel was carried out.The modal analysis and harmonic response of the ultrasound bone scalpel was carried out by finite element software,and the rationality of the design method was verified by experiments.The operating frequency of the final ultrasound bone scalpel was 40619 Hz,and the amplitude was about 110 um,which basically met the clinical needs.It provides theoretical support for the optimization and development of the follow-up ultrasound bone scalpel.
作者
刘子豪
孙春生
蔡晨需
张勤河
LIU Zihao;SUN Chunsheng;CAI Chenxu;ZHANG Qinhe(School of Mechanical Engineering,Shandong University,Jinan 250061,China;Key Laboratory of Efficient and Clean Machinery Manufacturing of Ministry of Education,National Demonstration Center for Experimental Mechanical Engineering Education,Shandong University,Jinan 250061)
出处
《生物医学工程研究》
2020年第1期62-67,共6页
Journal Of Biomedical Engineering Research
基金
国家自然科学基金资助项目(51475274)
山东省自然科学基金资助项目(ZR2019MEE017)。
关键词
骨切削
超声骨刀
整体设计
有限元
谐响应
Booe cutting
Ultrasonic bone scalpel
Integral design
Finite element
Harmonic response
