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Development of high strength superelastic stent

Research Project

Project/Area Number 22K04765
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 26050:Material processing and microstructure control-related
Research InstitutionAichi Institute of Technology

Principal Investigator

Matsui Ryosuke  愛知工業大学, 工学部, 教授 (00632192)

Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2024: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2023: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2022: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywords形状記憶合金 / TiNi合金 / 疲労 / ステント / 表面性状 / 疲労寿命 / 耐食性
Outline of Research at the Start

本研究では現行ステント同等以上の耐久性を有し,且つ血管拡張力の高い超弾性ステントの開発を目的とする.この目的を達成するため,以下の項目に取り組む.
①熱処理を最小限に抑えた加工プロセスを確立する
②表面の超平滑化および薄く均質な不動態皮膜を形成させる
本研究は,TiNi形状記憶合金を用いた医療デバイスの開発が大きく進展し,社会貢献につながる重要な位置づけにある.

Outline of Final Research Achievements

In this study, we aimed to develop a superelastic stent with durability equal to or greater than that of existing stents while exhibiting enhanced vascular expansion force. As a result, we found that combining severe plastic working with the minimum necessary heat treatment in the manufacturing process could increase the vascular expansion force compared to conventional products. Furthermore, we fabricated a fatigue testing machine capable of reproducing pulsatile loading within blood vessels to evaluate the fatigue life of the developed stent. By integrating finite element analysis results, we clarified the relationship between local deformation characteristics and fatigue failure.

Academic Significance and Societal Importance of the Research Achievements

本研究では現行品に対して血管拡張力のより高いTiNi形状記憶合金ステントの開発を実施した.その結果,製造プロセスの工夫により血管拡張力アップに成功し,その疲労寿命を評価する技術も確立した.これらの研究成果はより細い血管でのステント治療を実現するなどステントによる治療の幅を拡げることにつながり,低侵襲医療に貢献するものである.

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (32 results)

All 2024 2023 2022 Other

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 3 results) Presentation (23 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results) Remarks (1 results)

  • [Journal Article] Functional Characteristics of Ultrasonic Shot-peened Ti–Ni Shape Memory Alloy with Functionally Graded Property2024

    • Author(s)
      Matsui Ryosuke
    • Journal Title

      Sensors and Materials

      Volume: 36 Issue: 8 Pages: 3381

    • DOI

      10.18494/SAM5092

    • ISSN
      0914-4935, 2435-0869
    • Year and Date
      2024-08-16
    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fatigue Properties of TiNi Shape Memory Alloy with Passive Film2024

    • Author(s)
      MATSUI Ryosuke、HASHIMOTO Hiwa
    • Journal Title

      Transactions of Japan Society of Spring Engineers

      Volume: 2024 Issue: 69 Pages: 17-21

    • DOI

      10.5346/trbane.2024.17

    • ISSN
      0385-6917, 1348-1479
    • Year and Date
      2024-03-31
    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Phase-field damage simulation of subloop loading in TiNi SMA2024

    • Author(s)
      Dunic Vladimir、Matsui Ryosuke、Takeda Kohei、Zivkovic Miroslav
    • Journal Title

      International Journal of Damage Mechanics

      Volume: 33 Issue: 8 Pages: 577-604

    • DOI

      10.1177/10567895241245859

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 高耐食・高耐久TiNi形状記憶合金の開発2024

    • Author(s)
      松井良介
    • Journal Title

      チタン

      Volume: 72 Pages: 232-236

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Phase-Field Damage Simulation of Subloop Loading in TiNi SMA2024

    • Author(s)
      V. Dunic, R. Matsui, K. Takeda, M. Zivkovic
    • Journal Title

      International Journal of Damage Mechanics(掲載決定)

      Volume: -

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] 不動態皮膜を有するTiNi形状記憶合金の疲労特性2024

    • Author(s)
      松井良介,橋本妃環
    • Journal Title

      ばね論文集(掲載決定)

      Volume: -

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] 超音波ショットピーニングによる傾斜機能TiNi形状記憶合金の機械的性質改善2023

    • Author(s)
      松井良介,宮本崇志,濱川悠太,服部兼久
    • Journal Title

      ばね論文集

      Volume: -

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characterization of Polyurethane Shape Memory Polymer and Determination of Shape Fixity and Shape Recovery in Subsequent Thermomechanical Cycles2022

    • Author(s)
      Staszczak Maria、Nabavian Kalat Mana、Golasinski Karol Marek、Urbanski Leszek、Takeda Kohei、Matsui Ryosuke、Pieczyska Elizibieta Alicja
    • Journal Title

      Polymers

      Volume: 14 Issue: 21 Pages: 4775-4775

    • DOI

      10.3390/polym14214775

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 形状記憶合金の基礎と応用および今後の動向2024

    • Author(s)
      松井良介
    • Organizer
      名古屋市工業研究所 グループ指導
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] Effect of Nonmetallic Inclusions in Ti-Ni Alloys on the Low Cycle Fatigue Behavior2024

    • Author(s)
      H. Torihara, S. Kise, K. Uruma, F. Yamashita, T. Habu, H. Cho, R. Matsui, M. Nishida
    • Organizer
      14th Asia-Pacific Conference on Fracture and Strength (APCFS 2024)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of TiNi Shape Memory Alloys with Advanced Functional Properties2024

    • Author(s)
      R. Matsui
    • Organizer
      Poland-Japan Workshop on Shape Memory Materials
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Effect of Nonmetallic Inclusions of Ti-Ni Alloys on Rotary Beam Fatigue Properties2024

    • Author(s)
      H. Torihara, S. Kise, R. Matsui, F. Yamashita, K. Uruma, T. Habu
    • Organizer
      Advances in Superelastic & Shape Memory Materials and Application (SMST2024)
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] デジタル画像相関法を活用した傾斜機能TiNi形状記憶合金の開発2023

    • Author(s)
      松田樹, 濱川悠太, 松井良介, 服部兼久
    • Organizer
      2023年度春季ばね及び復元力応用講演会
    • Related Report
      2023 Research-status Report
  • [Presentation] 不動態皮膜を有するTiNi形状記憶合金の疲労特性2023

    • Author(s)
      橋本妃環, 松田樹, 松井良介
    • Organizer
      2023年度春季ばね及び復元力応用講演会
    • Related Report
      2023 Research-status Report
  • [Presentation] 高拡張力TiNi形状記憶合金ステントの変形特性2023

    • Author(s)
      森本楓生, 松井良介
    • Organizer
      第13回 SMAシンポジウム2023
    • Related Report
      2023 Research-status Report
  • [Presentation] TiNi形状記憶合金ステントの疲労特性2023

    • Author(s)
      森本楓生, 松井良介, 山内清, 武澤清則, 山本将弘, 喜瀬純男, 閏間謙次
    • Organizer
      M&M2023材料力学カンファレンス
    • Related Report
      2023 Research-status Report
  • [Presentation] Bending Fatigue Properties of TiNi Shape Memory Alloy2023

    • Author(s)
      T. Matsuda, R. Matsui
    • Organizer
      The Advanced Technology in Experimental Mechanics 2023
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] Fatigue Properties of TiNi Shape Memory Alloy in Corrosive Environments2023

    • Author(s)
      H. Hashimoto, R. Matsui
    • Organizer
      The Advanced Technology in Experimental Mechanics 2023
    • Related Report
      2023 Research-status Report
    • Int'l Joint Research
  • [Presentation] 超音波ショットピーニングがTiNi形状記憶合金の耐食性に及ぼす影響2023

    • Author(s)
      松田樹, 松井良介, 服部兼久
    • Organizer
      2023年度秋季ばね及び復元力応用講演会
    • Related Report
      2023 Research-status Report
  • [Presentation] TiNi形状記憶合金ステントの拍動モード疲労寿命2023

    • Author(s)
      森本楓生, 松井良介
    • Organizer
      2023年度秋季ばね及び復元力応用講演会
    • Related Report
      2023 Research-status Report
  • [Presentation] 半径方向単軸圧縮モードにおける高拡張力ステントの有限要素解析2023

    • Author(s)
      森本楓生, 島村真人, 松井良介, 山内清, 武澤清則, 山本将弘, 喜瀬純男
    • Organizer
      TOKAI ENGINEERING COMPLEX 2023(TEC23)
    • Related Report
      2022 Research-status Report
  • [Presentation] TiNi形状記憶合金の腐食疲労寿命に対するピーニング加工と機械的研磨の効果2023

    • Author(s)
      松田樹, 橋本妃環, 山田紘輝, 松井良介, 服部兼久
    • Organizer
      TOKAI ENGINEERING COMPLEX 2023(TEC23)
    • Related Report
      2022 Research-status Report
  • [Presentation] 機械的研磨と不動態薄膜によるTiNi形状記憶合金の腐食疲労特性改善2023

    • Author(s)
      橋本妃環, 松田樹, 松井良介
    • Organizer
      TOKAI ENGINEERING COMPLEX 2023(TEC23)
    • Related Report
      2022 Research-status Report
  • [Presentation] 形状回復温度の傾斜機能特性を有するTiNi形状記憶合金の開発2022

    • Author(s)
      松井良介, 濱川悠太
    • Organizer
      2022年度秋季ばね及び復元力応用講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 超音波ショットピーニングと機械的研磨の組合せによるTiNi形状記憶合金の腐食疲労特性改善2022

    • Author(s)
      松田樹, 橋本妃環, 山田紘輝, 松井良介, 服部兼久
    • Organizer
      2022年度秋季ばね及び復元力応用講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 高拡張力TiNi形状記憶合金ステントの半径方向単軸圧縮モードにおける変形特性2022

    • Author(s)
      森本楓生, 島村真人, 松井良介, 山内清, 武澤清則, 山本将弘, 喜瀬純男
    • Organizer
      2022年度秋季ばね及び復元力応用講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 圧縮残留応力を導入したTiNi形状記憶合金焼結体の機械的特性2022

    • Author(s)
      山口裕也, 宮本崇志, 松井良介, 服部兼久
    • Organizer
      日本機械学会材料力学部門M&M2022材料力学カンファレンス
    • Related Report
      2022 Research-status Report
  • [Presentation] 高密度傾斜機能TiNi形状記憶合金焼結体の機械的性質2022

    • Author(s)
      濱川悠太, 松井良介, 服部兼久
    • Organizer
      日本機械学会材料力学部門M&M2022材料力学カンファレンス
    • Related Report
      2022 Research-status Report
  • [Presentation] TiNi形状記憶合金ステントの疲労破面形態2022

    • Author(s)
      島村真人, 松井良介, 山内清, 高村誠一, 武澤清則, 小川明
    • Organizer
      日本機械学会材料力学部門M&M2022材料力学カンファレンス
    • Related Report
      2022 Research-status Report
  • [Presentation] TiNi形状記憶合金の腐食疲労寿命に及ぼすピーニング加工の効果2022

    • Author(s)
      松田樹, 松井良介, 服部兼久
    • Organizer
      日本機械学会材料力学部門M&M2022材料力学カンファレンス
    • Related Report
      2022 Research-status Report
  • [Presentation] 形状記憶合金の基本挙動と高機能化への取り組み2022

    • Author(s)
      松井良介
    • Organizer
      形状記憶合金協会第1回Webセミナー2022
    • Related Report
      2022 Research-status Report
    • Invited
  • [Remarks] 血管を中から拡げる医療器具「ステント」を形状記憶合金で(河合塾 みらいぶっく 学問・大学なび)

    • URL

      https://miraibook.jp/researcher/k23103

    • Related Report
      2023 Research-status Report

URL: 

Published: 2022-04-19   Modified: 2026-01-16  

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