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Development of the small blood circulation simulator to deepen the non-clinical evaluation of medical devices

Research Project

Project/Area Number 18H03555
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 90140:Medical technology assessment-related
Research InstitutionWaseda University

Principal Investigator

Umezu Mitsuo  早稲田大学, 理工学術院, 教授 (90132927)

Co-Investigator(Kenkyū-buntansha) 八木 高伸  早稲田大学, 理工学術院, 主任研究員(研究院准教授) (00468852)
岩崎 清隆  早稲田大学, 理工学術院, 教授 (20339691)
坪子 侑佑  早稲田大学, 理工学術院, 次席研究員(研究院講師) (40809399)
松橋 祐輝  早稲田大学, 理工学術院, その他(招聘研究員) (50754777)
伊関 洋  早稲田大学, 理工学術院, 教授(任期付) (90119892)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2020: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2019: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2018: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Keywords血液循環シミュレータ / 小容量拍動ポンプ / 脳動脈瘤モデル / 循環シミュレータ / 医療機器 / 塞栓コイル / 非臨床試験法 / 血液適合性
Outline of Final Research Achievements

As a final model of the blood circulatory simulator developed by the principal investigator (Prof Umezu) experienced for over 45 years, our team members have developed a 1/6 scale "ultra-small blood circulatory simulator". Fresh human blood was injected into the circuit, and a flow diverter, which is a new medical device aimed at preventing the rupture of a cerebral aneurysm, was placed into this mini-circuit. The relationship between pressure and flow rate in the simulator is very similar to that of human hemodynamics, and the results of imaging with an ultrasonic diagnostic device revealed the thrombus formation process. From the above, it was confirmed that our newly-developed ultra-small blood circulatory simulator can be regarded as a useful tool to determine effective treatment guidelines for the patients.

Academic Significance and Societal Importance of the Research Achievements

研究成果の学術的意義:2014年の薬事法の70年ぶりの大改訂により、医薬品と同様に医療機器においても、その性能や安全性に関して審査の段階で科学的根拠を明確に示すことが要求されている。本研究では、単に動物実験の成果をまとめて示す方法とは異なり、血液循環シミュレータにより新規医療機器の性能の明確化を図るという点で学術的意義がある。

研究成果の社会的意義:従来、アイディアをなかなか実用化・市販化に反映できないという現実があった。そこで、血液循環シミュレータを実臨床に近い形で応用し、新規治療デバイスのリスク分析を科学的に行える。その結果、迅速かつ有効に臨床に導入する道筋ができたことは社会的意義がある。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (11 results)

All 2021 2020 2019 2018

All Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 4 results) Book (1 results)

  • [Journal Article] New Visualization Models of Designation Pathway and Group Categorization of Device?Drug and Device?Biologic Combination Products Classification in the United States: Analysis of FDA Capsular Decisions2021

    • Author(s)
      Uemura Nobuo、Kasanuki Hiroshi、Umezu Mitsuo
    • Journal Title

      Therapeutic Innovation & Regulatory Science

      Volume: - Issue: 4 Pages: 807-817

    • DOI

      10.1007/s43441-021-00276-x

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Regulatory Science Measure to Promote Research and Development and Improve Market, Rebalancing Innovation and Sustainability2020

    • Author(s)
      Mitsuo Umezu
    • Journal Title

      Rebalancing Innovation and Sustainability Taskforce Report

      Volume: - Pages: 24-31

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Comparison of supportive regulatory measures for pediatric medical device development in Japan and the United States2020

    • Author(s)
      Takahashi Sara、Iwasaki Kiyotaka、Shirato Haruki、Ho Mami、Umezu Mitsuo
    • Journal Title

      Journal of Artificial Organs

      Volume: 24 Issue: 1 Pages: 90-101

    • DOI

      10.1007/s10047-020-01216-6

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 国産植込型補助人工心臓EVAHEARTの中国展開2020

    • Author(s)
      山崎健二,本村禎,胡盛寿,董念国,陳良万,Mark Slaughter,小野稔,齋木佳克,戸田宏一,齋藤聡,立石実,岩﨑清隆,梅津光生
    • Organizer
      第58回日本人工臓器学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 新しい発想や技術を臨床現場にどう持ち込むか:Another EBM(Engineering Based Medicine)の活用2020

    • Author(s)
      梅津光生
    • Organizer
      第56回日本小児循環器学会総会・学術集会2020
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 医工連携45年間における心臓外科医10人からの印象に残る一言の紹介2020

    • Author(s)
      梅津光生
    • Organizer
      第25回AHVS研究会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Biomedical engineering education program for graduate students at TWins2019

    • Author(s)
      M. Umezu, K. Iwasaki, Y. Matsuhashi, Y. Tsuboko, H. Kasanuki
    • Organizer
      ICBME 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 医療レギュラトリーサイエンス分野の専門人材の育成の現況2019

    • Author(s)
      梅津光生, 岩﨑清隆, 松橋祐輝, 坪子侑佑, 笠貫宏
    • Organizer
      第58回日本生体医工学会大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 塞栓コイルの3次元留置形態と血栓形成の関係性に関する研究2018

    • Author(s)
      松橋祐輝,青山祐介,鮫島啓,熊谷直紀,頼卓然,保延慶紀,梅津光生,岩﨑清隆
    • Organizer
      第41回バイオレオロジー学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ヒト血液を用いた血液適合性比較試験を実現するための小型拍動回路の開発2018

    • Author(s)
      保延慶紀,松橋祐輝,鮫島啓,頼卓然,熊谷直紀,青山祐介,梅津光生,岩﨑清隆
    • Organizer
      第41回バイオレオロジー学会
    • Related Report
      2018 Annual Research Report
  • [Book] 日本AHVS/OPCAB研究会設立22年記念誌2021

    • Author(s)
      バイオエンジニアから次世代心臓外科医に贈る言葉
    • Total Pages
      214
    • Publisher
      日本AHVS/OPCAB研究会
    • ISBN
      9784863871458
    • Related Report
      2020 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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