Multi-Objective Optimization of the Ultrasonic Scalpel Rod and Tip with Improved Performance:Vibration Frequency,Amplitude,and Service Life

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外文摘要：Ultrasonic scalpel design for minimally invasive surgical procedures is mainly focused on optimizing cutting per-formance.However,an important issue is the low fatigue life of traditional ultrasonic scalpels,which affects their long-term reliability and effectiveness and creates hidden dangers for surgery.In this study,a multi-objective optimal design for the cutting performance and fatigue life of ultrasonic scalpels was proposed using finite element analysis and fatigue simulation.The optimal design parameters of resonance frequency and amplitude were determined.By setting the transition fillet and keeping the gain structure away from the node position to enable the scalpel to have a high service life with excellent cutting performance.The frequency modulation method of setting the vibration node bosses at the node position and setting the vibration antinode grooves at the antinode position was compared.Then,the mechanism of the influence of various design elements,such as tip,shank,node position,and antinode position,on the resonance frequency,amplitude,and fatigue life of the ultrasonic scalpel was analyzed,and the opti-mal design principles of the ultrasonic scalpel were obtained.The proposed ultrasonic scalpel design was con-firmed by simulations,impedance measurements,and liver tissue cutting experiments,demonstrating its feasibility and enhanced performance.This research introduces innovative design strategies to improve the fatigue life and per-formance of ultrasonic scalpels to address an important issue in minimally invasive surgery.

外文关键词：

Multi-objective optimal designMinimally invasive surgical proceduresService lifeUltrasonic scalpel

作者：

Jiaqi Zhao、Yuhao Zhai、Xuzhe Jia、Naiwen Deng、Kunxu Li、Guangchao Han、Rong Chen、Dong Wang、Wei Bai

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作者单位：

School of Mechanical Engineering and Electronic Information,China University of Geosciences,Wuhan 430074,China

Shenzhen Research Institute,China University of Geosciences,Shenzhen 518057,China

College of Engineering,Mathematics and Physical Sciences,University of Exeter,Exeter EX4 4QF,UK

Shenzhen Huazhong University of Science and Technology Research Institute,Shenzhen 518000,China

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基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaShenzhen Fundamental Research Program of ChinaShenzhen Fundamental Research Program of ChinaKnowledge Innovation Program of Wuhan-Basic Research of ChinaShenzhen Science and Technology Program of ChinaShenzhen Science and Technology Program of China

项目编号：

5200519942241149JCYJ20200109150425085JCYJ202208181026010042022010801010203JSGG20201103100001004JSGG20220831105800001

出版年：

2024

DOI：

10.1186/s10033-024-01071-z

中国机械工程学报

中国机械工程学会

中国机械工程学报

CSTPCD

影响因子：0.765

ISSN：1000-9345

年,卷(期)：2024.37(4)