外源性脉冲电磁场干扰下的心脏起搏器“窗口效应”及防护

卢武, 丁苒苒, 赵文彬, 黄冬, 王哲铭

“Window Effect” and Protective Measures of Exogenous Pulsed Electromagnetic Field on Implantable Cardiac Pacemaker

LU Wu, DING Ranran, ZHAO Wenbin, HUANG Dong, WANG Zheming

表2 90 kHz下组织和心脏起搏器导线的电导率、相对介电常数和相对磁导率设置值

Tab.2 Conductivity, relative permittivity, and relative permeability of tissues and pacemaker leads at 90 kHz

人体组织 l/mm εr σ /(s·m-1) μr 皮肤 5 13 182 0.016 1 脂肪 3 95 0.063 1 肌肉 6 9 549 0.32 1 血液 0.8 5 623 0.89 1 心脏起搏器导线 1 5 2.38×106 1