Study of microscopic effects of low-intensity pulsed ultrasound on bone lacunar-canalicular system
10.19745/j.1003-8868.2023224
- VernacularTitle:低强度脉冲超声对骨陷窝-骨小管系统的微观影响研究
- Author:
Jia-Ming WANG
1
;
Xiao-Guang ZHANG
;
Xuan LI
;
Lin-Wei LYU
;
Chun-Qiu ZHANG
Author Information
1. 天津理工大学机械工程学院天津市先进机电系统设计与智能控制重点实验室,机电工程国家级实验教学示范中心,天津 300384
- Keywords:
low intensity pulsed ultrasound;
bone lacunar-canalicular system;
sound field distribution;
heat field distribution;
osteoporosis
- From:
Chinese Medical Equipment Journal
2023;44(11):27-33
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the microscopic effects of low-intensity pulsed ultrasound(LIPUS)on bone lacunar-canalicular system(LCS).Methods Three consecutive bone cells from the real bone tissue were selected and used to build a LCS model with SolidWorks software,then the LCS model was imported into finite element analysis software COMSOL.LIPUS irradiation was performed on the top of the LCS model to analyze the distribution of the acoustic and thermal fields of the model under different conditions.Results After ultrasonic irradiation of the LCS model,the farther away from the ultrasonic incidence surface,the lower the acoustic field sound pressure was,and the distribution of the sound pressure inside the model had left-right symmetry;the acoustic field sound pressure inside the LCS model increased with the enhancement of the excitation sound pressure;the closer to the ultrasound focusing region,the denser the temperature contours.Conclusion The distribution laws of acoustic and thermal fields within the LCS are revealed from a microscopic point of view,and theoretical references are provided for LIPUS experiments and treatment.[Chinese Medical Equipment Journal,2023,44(11):27-33]
