| Project/Area Number |
17K13038
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Medical systems
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| Research Institution | Tohoku Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 低侵襲治療 / ハイパーサーミア / 感温磁性体 / LC-Booster / 消費電力 / 励磁条件 / 温度分布 / 複合型発熱素子 / ファントム / 励磁周波数 / 低侵襲 / 磁性体 / 共振器 |
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| Outline of Final Research Achievements |
In this research, novel heating element applied LC-Booster method which was one of LC resonance type wireless power supply technology was developed for minimally invasive hyperthermia. As a study on the heating element configuration, we clarified the exciting frequency band considered the influence of human body and confirmed the electrical characteristics due to the heating element shape. In addition, we showed that the heating element of LC-Booster type had performance superior to that of the conventional type by the operation verification of the prototype heating element. Furthermore, we obtained a guideline toward the effective exciting condition by analyzing the temperature characteristics due to the difference of tissue which was required when aiming at clinical application.
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| Academic Significance and Societal Importance of the Research Achievements |
がん治療への温熱療法の中でも低侵襲で局所的な治療が可能な方式であるソフトヒーティング法は、外部から高周波磁界を印可することで非接触で発熱体を加熱することができる。しかし、磁界発生装置が大型になることが課題の一つとなっていたが、本研究により、これまでよりも低い磁界強度で発熱素子を加熱できる可能性が出てきた。本研究成果は、ソフトヒーティング法を応用した方式として、患部以外での不要な加熱の抑制や、装置全体の小型化によって在宅での治療の実現につながるものである。
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