Modeling and analysis of TENS signal transduction mechanism based on Chinese digital human(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2022年第1期
- Page:
- 57-62
- Research Field:
- 医学信号处理与医学仪器
- Publishing date:
Info
- Title:
- Modeling and analysis of TENS signal transduction mechanism based on Chinese digital human
- Author(s):
- ZHANG Shuang1; 2; 3; WANG Jiujiang1; YU Yuanyu1; KUANG Jiangming1; XU Jing1; YANG Jining1; ZHANG Tao2; 3
- 1. School of Artificial Intelligence, Neijiang Normal University, Neijiang 641112, China 2. School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China 3. High-Field Magnetic Resonance Brain Imaging Laboratory of Sichuan, University of Electronic Science and Technology of China, Chengdu 611731, China
- Keywords:
- Keywords: transcutaneous electrical nerve stimulation finite element model Chinese digital human human forearm bone
- PACS:
- R318；Q42；Q64
- DOI:
- DOI:10.3969/j.issn.1005-202X.2022.01.010
- Abstract:
- Objective To study the internal signal transmission of transcutaneous electrical nerve stimulation (TENS) during muscle stimulation, thereby providing theoretical basis for ideal stimulation. Methods Based on data of Chinese digital human, tissue segmentation and three-dimensional modeling were completed by Mimics software. Considering that multi-physical field finite element modeling software was available only for geometric entity, Geomatics software was used to carry out the entity modeling of the tissues and then obtain the geometric entity of the tissues. Finally, the obtained geometric entity was modeled in COMSOL Multiphysics 5.5, and the transmission mechanism of the signal in the arm was analyzed by injecting 20 mA DC signal in the frequency-domain environment. Results Due to skin effect, the signal was mainly concentrated in the electrode and the contact site between the electrode and the skin. The farther the analysis position was from the center of the electrode, the smaller the induced potential in the human arm was, and the induced potential gradually became positive potential. Bones did not conduct signals inside the arm, but the shape and number of bones affected the uniformity of current density distribution. Conclusion In the TENS signal transduction model based on Chinese digital human, the farther the conduction distance is, the greater the signal attenuation is and the more complex the internal tissue structure is, the more heterogeneous the signal distribution is.
Last Update: 2022-01-17