电刀功率对肌肉组织损伤影响的有限元分析

doi:10.3969/j.issn.0258-8021. 2016.02.007

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (7938 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract As an electrosurgery energy device, electrosurgical unit has been widely used in clinical practice to cut tissues. In this paper, based on Pennes thermodynamic equation, a thermodynamics lesion model of in vitro porcine muscle tissue in cut mode was first established using ANSYS Workbench. And then the lesions of muscular tissue at different powers of electrosurgical unit were analyzed, aiming to reveal the effect of electrosurgical unit power on tissue lesions. Results showed that with the power of electrosurgical unit increasing, the area and extent of tissue lesion changed nonlinearly. As the power was gradually increased from 20 W to 60 W, only local variation instead of significant increase occurred to lesion area. And the highest temperature in tissues increased from 214 .4℃ to 301.7℃. As the power was increased from 60 W to 70 W, the lesion area increased significantly, and the highest temperature in tissues increased rapidly from 301.7℃ to 436.6℃. Obviously, the extent of tissue lesion aggravated remarkably. In addition, with the gap between the tissue and electrode decreasing, the extent of tissue lesion was aggravated. The temperature in tissues increased sharply about ±1.8 mm away from the center of electrode along the cutting direction, while the temperature increased sharply about ±1.2 mm away from the center of electrode perpendicular to the cutting direction. The results would help to reveal the relationship between the power of electrosurgical unit and tissue lesions in cut mode, and then provide valuable insights into the clinical application of electrosurgical unit.

Key words： electrosurgical unit electrode tissue lesion power finite element analysis

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Ru Leilei Zheng Jing^*Li Yunlong Zhou Zhongrong

Cite this article:

Ru Leilei Zheng Jing^*Li Yunlong Zhou Zhongrong. Finite Element Analysis on Effect of Power of Electrosurgical Unit on Lesions of Muscular Tissue[J]. journal1, 2016, 35(2): 169-176.

URL:

http://cjbme.csbme.org/EN/10.3969/j.issn.0258-8021. 2016.02.007 OR http://cjbme.csbme.org/EN/Y2016/V35/I2/169

［1］Hay DJ. Electrosurgery ［J］. Surgery (Oxford), 2005, 23(2): 73-75.
［2］Charles W, Van W, Christian SH. Electrosurgery 201: basic electrical principles ［J］. Current Surgery, 2000, 57(3): 261-264.
［3］Gallagher K, Dhinsa B, Miles J. Electrosurgery ［J］. Surgery (Oxford), 2011, 29(2): 70-72.
［4］Wang K, Advincula AP. “Current thoughts” in electrosurgery ［J］. International Journal of Gynecology and Obstetrics, 2007, 97(3):245-250.
［5］Dodde RE, Gee JS, Geiger JD, et al. Monopolar electrosurgical thermal management for minimizing tissue damage ［J］. IEEE Transactions on Biomedical Engineering, 2012, 59(1): 167-173. 
［6］范晓筠, 白景峰, 陈亚珠. 单针水冷式射频消融过程中组织热损伤区域的有限元分析［J］. 中国医学物理学杂志, 2007, 24(3): 197-199.
［7］磨宾宇, 戴文斌, 孙文忠, 等. 高频电刀对扁桃体组织热损伤的研究［J］. 实用医学杂志, 2013, 29(21): 3556-3558.
［8］刘鹏飞，刘济全，段会龙. 基于真实解剖模型的心脏导管射频消融有限元仿真［J］. 中国生物医学工程学报, 2012, 31(4): 532-538.
［9］胡银平. 离体生物组织冻结过程温度场和应力场的数值模拟［D］. 重庆：重庆大学，2007.
［10］Muller G, Roggan A. Laser Induced Interstitial Thermotherapy ［M］. Bellingham: SPIE Optical Engineering Press, 1995:4-24.
［11］Takata AN, Zanevveld L, Richter W. Laserinduced damage in skin ［J］. Aerospace Med, 1997, 36(2), 214-217.
［12］Spells KE. The thermal conductivities of some biological fluids ［J］. Physics in Medicine and Biology, 1960, 5(2): 139-146.
［13］Pennes HH. Analysis of tissue and arterial blood temperatures in the resting human forearm ［J］. Journal of Applied Physiology, 1998, 85(1): 5-34.
［14］刘静，王存诚, 编著. 生物传热学［M］. 北京：科学出版社，1997:53-56.
［15］童雅星. 生物组织光热响应数值模拟与实验研究［D］. 上海：上海交通大学, 2010.
［16］刘鹏飞. 心脏房颤导管射频消融损伤的有限元仿真研究［D］. 杭州：浙江大学, 2012.
［17］Nath S, Lynch CD, Whayne JG, et al. Cellular electrophysiological effects of hyperthermia on isolated guinea pig papillary muscle. Implications for catheter ablation［J］. Circulation, 1993, 88(4): 1826-1831.