著者

志田 優樹 津村 遼介 渡辺 貴文 藤井 航平 岩田 浩康

出版者

一般社団法人 日本ロボット学会

雑誌

日本ロボット学会誌 (ISSN:02891824)

巻号頁・発行日

vol.38, no.7, pp.667-674, 2020 (Released:2020-09-05)

参考文献数

23

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The shortage of obstetricians and gynecologist is a serious problem in developed countries. To improve the workflow, we have been developing a robotic platform for supporting the fetal echo sonography, ``Tenang'', which allows for the ultrasound scan following the abdominal surface of pregnant women passively. Meanwhile, the acquired image quality was not constant due to the uncertain contact force between the probe and abdomen. In this paper, we aim to investigate the cause of the decreased image quality through a dynamic model analysis and experiment with a PVC phantom, and to propose the scan method which allows for the stable image acquisition. Thorough the investigation, the relative angle between the probe and body surface caused the contact force and acquired image quality. We hypothesized that the contact force and acquired image quality can be stable by maintaining the relative angle is constantly positive. Then, we proposed a spiral ascending scan that the probe constantly rises on the abdomen spirally. The proposed scan method is verified with an abdominal phantom in the second trimester. The results showed that the variation of the contact force under the spiral ascending scan path was reduced and the image quality was maintained.

著者

伊藤 慶一郎 菅野 重樹 岩田 浩康

出版者

バイオメカニズム学会

雑誌

バイオメカニズム (ISSN:13487116)

巻号頁・発行日

vol.21, pp.43-53, 2012 (Released:2017-02-15)

参考文献数

15

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内出血を呈した高緊急度外傷患者の救命には, 出血性ショックの原因となる血液貯留を探索する迅速簡易超音波検査 (通称 : FAST) が重要となる. さらに救急搬送下あるいは現場において, 医師による遠隔操作のもと, FASTを施せる小型でポータブルな診断システムがあれば, 外傷患者の死亡率は飛躍的に低減できると考えられる. そこで本研究では, 内出血患者の早期診療を支援すべく, FASTが可能で, 患者の体幹に直接装着できるロボットシステムを開発したので報告する. 本稿で提案する新たな救急医療シナリオ, および体幹装着技術, 超音波プローブの駆動メカニズム, 小型・軽量化技術は, 場所を限定しない超音波診断の実現に寄与しえ, 救急医療の限界を大きく変革し得る新たな救命支援ツールとして普及する可能性を, 社会に強く訴えるものになると考えられる.

著者

岩田 浩康

出版者

早稲田大学

巻号頁・発行日

2003

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制度:新 ; 文部省報告番号:甲1745号 ; 学位の種類:博士(工学) ; 授与年月日:2003-03-06 ; 早大学位記番号:新3508

著者

河田 俊 安田 和弘 岩田 浩康

出版者

一般社団法人 日本機械学会

雑誌

日本機械学会論文集 (ISSN:21879761)

巻号頁・発行日

vol.83, no.851, pp.16-00515-16-00515, 2017 (Released:2017-07-25)

参考文献数

16

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Acquiring one's own form is an important technique for excelling in any competitive sport. Most basketball players spend a significant amount of time in acquiring the ideal form in order to improve their basketball skills. Although basketball is one of the most popular sports in the world, there are only few devices that aid in improving a player's skills. In the research involving the development of a skill-support device for basketball, it is important to learn the ideal form to acquire a physical posture of set-form. Therefore, we developed a device for reforming the set-form using auditory biofeedback. The proposed device measures the shoulder angle of a player in real time (50 Hz) and generates a sound on the basis of the measured angle to inform the ideal posture. If the set-form posture is not ideal, the device uses this sound to inform the player that they must modify their posture. The player then changes their shoulder angle and if the posture becomes ideal, the device mutes the sound. Several seconds after the sound stops, the device indicates the player to shoot. According to our study for testing the efficacy of this device, the BF-training group obtained 20% higher success rate than the control group. Moreover, the BF-training group had a more stable form than the control one.

著者

岩田 浩康

出版者

The Robotics Society of Japan

雑誌

日本ロボット学会誌 (ISSN:02891824)

巻号頁・発行日

vol.29, no.3, pp.259-260, 2011-04-15