Watanabe Ryohei, Saito Kazuyuki, Watanabe Soichi, Takahashi Masaharu, Ito Koichi
Chiba University, Inage-ku, Japan.
Annu Int Conf IEEE Eng Med Biol Soc. 2010;2010:3839-42. doi: 10.1109/IEMBS.2010.5627693.
Recently, electromagnetic interference (EMI) of an implanted pacemaker with a mobile phone was largely investigated. As for the pacemaker, the Japan National Authorities have recommended to keep the mobile phone in safe distance from the cardiac pacemaker. Meanwhile, evaluation of the interaction between the electromagnetic (EM) wave and human body was in progress. Therefore, the absorption of EM energy to the human body especially around the pacemaker, where the mobile phone was in a chest pocket of the pacemaker holder, was thoroughly evaluated. We provided the calculation of specific absorption rate (SAR) distributions around the pacemaker model that implanted into a rectangular parallelepiped torso model, when a mobile phone model is placed in the vicinity. In addition, the SAR was also experimentally performed to validate the such numerical calculations. We confirmed that SAR distributions could be estimated from the presence or absence of pacemaker model. Moreover, the measurement results of the SAR distribution suited to the calculation, thus its validation was achieved.
最近，人们对植入式心脏起搏器与手机之间的电磁干扰（EMI）进行了大量研究。对于心脏起搏器，日本国家当局建议手机与心脏起搏器保持安全距离。与此同时，对电磁波与人体之间的相互作用的评估也在进行中。因此，对人体尤其是起搏器周围（手机放在起搏器携带者胸袋中的位置）对电磁能量的吸收进行了全面评估。当手机模型放置在附近时，我们给出了植入长方体躯干模型中的起搏器模型周围比吸收率（SAR）分布的计算结果。此外，还通过实验测量了SAR，以验证此类数值计算。我们证实，可以根据起搏器模型的有无来估计SAR分布。而且，SAR分布的测量结果与计算结果相符，从而实现了验证。
