针对超声骨刀在手术过程中切割效率低和产生骨组织热损伤的问题,设计了具有二级放大结构的高载能超声骨刀.基于驻波理论的等效长度法,结合有限元仿真对其二级放大结构进行设计和优化,测试了其振动性能并进行了骨切割试验.结果表明:具有二级放大结构的超声骨刀的谐振频率为23 306 Hz,振幅为140 μm,骨切割表面平整且无损伤,满足临床手术需求.
Aiming at the problems of low cutting efficiency of ultrasonic bone scalpel and the generation of thermal damage of bone tissue during surgery,a high-capacity ultrasonic bone scalpel with a secondary amplification structure was designed.Based on the equivalent length method of standing wave theory and finite element simulation,the design and optimization of the secondary amplified structure were carried out,and the vibration performance was tested and the bone cutting test was conducted.The results show that the resonance frequency of the ultrasonic bone scalpel with secondary amplification structure is 23 306 Hz,the amplitude is 140 μm,and the bone cutting surface is flat and damage-free,which meets the needs of clinical surgery.
姜兴刚;邓康;尹欣;江培源
北京航空航天大学机械工程及自动化学院,北京 100191中国人民解放军总医院第四医学中心骨科医学部,北京 100048中国航发贵阳发动机设计研究所,贵州贵阳 550081
超声骨刀;骨组织;二级放大;驻波理论;有限元仿真
ultrasonic bone scaple;bone tissue;secondary amplification;standing wave theory;finite element simulation
《陕西师范大学学报（自然科学版）》 2024 (002)
1-7 / 7
国家自然科学基金(51975035)
10.15983/j.cnki.jsnu.2024304
评论