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Development of a stent motor to preserve the cardiac coronary artery

Research Project

Project/Area Number 16H04253
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Design engineering/Machine functional elements/Tribology
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

TOYAMA Shigeki  東京農工大学, 工学(系)研究科(研究院), 教授 (20143381)

Co-Investigator(Kenkyū-buntansha) Venture Gentiane  東京農工大学, 工学(系)研究科(研究院), 卓越教授 (30538278)
石田 寛  東京農工大学, 工学(系)研究科(研究院), 教授 (80293041)
Research Collaborator NISHIZAWA Uichi  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2018: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Keywordsステント / 超音波モータ / 心臓 / 冠動脈 / 機械要素
Outline of Final Research Achievements

This study is to develop a stent-type robot for preserving the coronary arteries of the heart. By irradiating ultrasonic waves from the outside, a weak vibration is generated on the stent surface, and the inside of a blood vessel is driven as a driving force. It contributes to the dilation of blood vessels, the securing of blood flow, and the removal and prevention of plaque formation. In the experiment, we fabricated a stent equipped with an ultrasonic wave receiving plate, and showed that it was possible to move comfortably by applying ultrasonic waves from the outside.

Academic Significance and Societal Importance of the Research Achievements

日本人の三大死因の一つに心疾患があり,2017には日本人の死因の第2位となっている.心疾患の例として,狭心症や心筋梗塞等を含む虚血性心疾患がある.これらの疾患は,冠動脈の血管内壁にコレステロールが溜まり血管が狭窄することにより起こる.治療法としてステント留置術がある.しかし,施術後にステント付近で再狭窄が発生し,再手術が必要になることがある.本開発では体外からの超音波照射により血管内を摺動するステントモータの開発を行っている.これは予防医学の観点から大きな意義をもつ。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (5 results)

All 2018 2016

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

  • [Journal Article] Development of Stent Motor2018

    • Author(s)
      ① Sigeki Toyama, Uichi Nishizawa
    • Journal Title

      International Journal of Modeling and Optimization

      Volume: 8 Pages: 78-81

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multi degree-of-freedom micro spherical ultrasonic motor using wire stators2016

    • Author(s)
      Fulin Wang, Uichi Nishizawa, Shigeki Toyama
    • Journal Title

      Vibroengineering PROCEDIA

      Volume: 10 Pages: 272-276

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phase difference control system for TR motor2016

    • Author(s)
      Uichi Nishizawa, Shigeki Toyama
    • Journal Title

      Applied mechanics and materials

      Volume: 841 Pages: 81-86

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Presentation] Multi degree-of-freedom micro spherical ultrasonic motor using wire stators2016

    • Author(s)
      Fulin Wang, Uichi Nishizawa, Shigeki Toyama
    • Organizer
      24th international conference vibroengineering 2016
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Phase difference control system for TR motor2016

    • Author(s)
      Uichi Nishizawa, Shigeki Toyama
    • Organizer
      OPTIROB2016
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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