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Intravascular stent motor driving by ultrasonic irradiation

Research Project

Project/Area Number 15K05756
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Nishizawa Uichi  東京農工大学, 工学(系)研究科(研究院), 産学官連携研究員 (80553221)

Co-Investigator(Kenkyū-buntansha) 大橋 太郎  木更津工業高等専門学校, 電子制御工学科, 准教授 (20259823)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsステントモータ / 超音波振動 / 共振周波数 / レシーバ / ステータ / 医療デバイス / モータ / 医療・福祉 / ステント / 超音波
Outline of Final Research Achievements

The purpose of this study is drive of a stent motor. A general stent is inserted in the stenosis part of a blood vessel and is the medical device used for expansion of a blood vessel. However, there is a problem of restenosis that a plaque accumulates around the stent. So the stent motor is used for removal of the plaque.
And a design and a resonance experiment of the stent motor were carried out. The stent motor consists of two cylindrical receivers and one coil shaped stator. A drive source of the stent motor is vibration of the stator. When the ultrasonic is irradiated to the receiver, vibration of the stator occurs. First, the receiver which resonates was designed by numerical analysis. The receivers different in the size based on the analysis result were made. And the size which resonates certainly by the resonance experiment was specified. Next, the stent motor was designed. The stent motors were made and the size which resonates by the resonance experiment was specified.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (5 results)

All 2018 2017 2015

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

  • [Journal Article] Development of stent motor2018

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

      International journal of Modeling and optimization

      Volume: Vol.8, No.2 Pages: 78-81

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of active stent moving by ultrasonic vibration2017

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

      Vibroengineering PROCEDIA

      Volume: Vol.13 Pages: 205-210

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Development of stent motor2018

    • Author(s)
      Shigeki Toyama, Uichi Nishizawa
    • Organizer
      OPTIROB 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of active stent moving by ultrasonic vibration2017

    • Author(s)
      Uichi Nishizawa, Shigeki Toyama
    • Organizer
      27th international conference vibroengineering 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Intravascular stent motor2015

    • Author(s)
      Uichi Nishizawa, Shigeki Toyama
    • Organizer
      OPTIROB2015
    • Place of Presentation
      Tismana Club Hotel, Jupiter, Constanta, Romania
    • Year and Date
      2015-06-26
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2019-03-29  

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