マサムネ　ケン   Masamune Ken   正宗　賢    所属   医学研究科 医学研究科 (医学部医学科をご参照ください)    職種   教授
言語種別	英語
発表タイトル	Measurement of magnetic field from radio-frequency identification antenna for use in operation room
会議名	2017 IEEE Conference on Antenna Measurements & Applications (CAMA)
学会区分	全国規模の学会
発表者・共同発表者	◎KUSUDA Kaori, MASAMUNE Ken, MURAGAKI Yoshihiro, AMEYA Michitaka , KUROKAWA Satoru, YAMASHITA Kazuhiko, OHTA Yuji
発表年月日	2017/12/04
開催地 （都市, 国名）	Tsukuba, Japan
学会抄録	2017 IEEE Conference on Antenna Measurements & Applications (CAMA) 414-415
概要	Retaining of surgical instruments in the patient's bodies has occasionally happened. To prevent it, surgical instruments with radio-frequency identification tags and new antenna for use in an operation room (ORAnt) were developed. With the use of such surgical instruments can be identified automatically during surgery. The system should precisely recognize the surgical instruments and not to interfere with work of intraoperative medical equipment. The purpose of this study was measurement of the magnetic field distribution of ORAnt. It revealed that with increase of the distance in z-axis direction, the magnetic field strength attenuated to the -4th powers of the distance.