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Improvement of bone fracture characteristics based on microstructural considerations

Research Project

Project/Area Number 24500503
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biomedical engineering/Biological material science
Research InstitutionHirosaki University

Principal Investigator

FUJISAKI Kazuhiro  弘前大学, 理工学研究科, 准教授 (90435678)

Co-Investigator(Kenkyū-buntansha) YOKOTA Hideo  理化学研究所, 画像情報処理研究チーム, チームリーダー (00261206)
TODOH Masahiro  北海道大学, 大学院工学研究院, 准教授 (10314402)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords生物・生体工学 / 機械材料・材料力学 / 生体材料 / 物性実験 / 医療・福祉 / 骨折予防
Outline of Final Research Achievements

Bone tissue is a composite material consisting of hydroxyapatite-like mineral particles and collagen fibers. The stiffness of the tissue is strongly dependent on the form of apatite phase. Mechanical properties of cortical bone vary drastically with the change of apatite concentration under demineralization processes. Thus we focused on the demineralization to improve the fracture toughness of bone tissue. In this study, we developed a Charpy-type impact loading device for bone fracture tests. And we showed that the demineralization process increased the impact toughness of bovine cortical bone specimens. And the demineralization improved the impact toughness of notched specimens even if the process was locally applied to the defected area.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (14 results)

All 2015 2014 2013 Other

All Presentation (14 results)

  • [Presentation] 骨―インプラント早期結合のためのチタン表面へのアパタイト誘引法2015

    • Author(s)
      伊達駿斗, 藤﨑和弘, 笹川和彦
    • Organizer
      日本機械学会 東北学生会 第45回卒業研究発表講演会
    • Place of Presentation
      八戸市
    • Year and Date
      2015-03-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] 逐次断面切削-観察技術に基づいた工業材料の内部構造観察・組成分析システムの開発2015

    • Author(s)
      藤崎和弘, 古城直道, 中土裕樹, 山下典理男, 横田秀夫
    • Organizer
      理研シンポジウム「3次元内部構造顕微鏡による3次元計測の生物・材料分野への挑戦と展開」
    • Place of Presentation
      和光市
    • Year and Date
      2015-02-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] ラマン分光法による骨コラーゲン/アパタイト複合構造に基づく力学機能評価2014

    • Author(s)
      東藤正浩, 但野茂
    • Organizer
      第29回日本整形外科学会基礎学術集会
    • Place of Presentation
      鹿児島市
    • Year and Date
      2014-10-09 – 2014-10-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] 皮質骨構造欠陥部の破壊特性に及ぼす脱アパタイト処理の影響2014

    • Author(s)
      長谷川歩, 藤崎和弘, 笹川和彦
    • Organizer
      日本機械学会 バイオフロンティア講演会
    • Place of Presentation
      鳥取市
    • Year and Date
      2014-10-03 – 2014-10-04
    • Related Report
      2014 Annual Research Report
  • [Presentation] Effect of Demineralization on Impact Fracture Characteristics of Bovine Cortical Bone Tissue2014

    • Author(s)
      Kazuhiro Fujisaki, Hiroya Yokoyama, Ayumi Hasegawa, Kazuhiko Sasagawa
    • Organizer
      The 7th World Congress of Biomechanics
    • Place of Presentation
      ボストン、米国
    • Year and Date
      2014-07-06 – 2014-07-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] 皮質骨組織の破壊特性に及ぼす脱アパタイトの影響2014

    • Author(s)
      長谷川歩, 藤崎和弘, 笹川和彦
    • Organizer
      日本非破壊協会 平成26年度東北支部講演会
    • Place of Presentation
      仙台市
    • Year and Date
      2014-04-18
    • Related Report
      2014 Annual Research Report
  • [Presentation] Mechanical analysis of mineral and collagen phases in bone by Raman spectroscopy2013

    • Author(s)
      Todoh M, Tadano S
    • Organizer
      15th International Conference on Biomedical Engineering
    • Place of Presentation
      National University of Singapore, Singapore
    • Related Report
      2013 Research-status Report
  • [Presentation] Raman spectroscopy for mechanical analysis of bone tissue2013

    • Author(s)
      Todoh M, Tadano S
    • Organizer
      International Symposium on Interdisciplinary Research and Education on Medical Device Developments
    • Place of Presentation
      Hirosaki University, Japan
    • Related Report
      2013 Research-status Report
  • [Presentation] 皮質骨のラマン分光現象と引張負荷の関係2013

    • Author(s)
      門谷琢郎, 東藤正浩, 但野茂
    • Organizer
      機械学会2013年度年次大会
    • Place of Presentation
      岡山大学, 津島キャンパス
    • Related Report
      2013 Research-status Report
  • [Presentation] 皮質骨組織の衝撃破壊強度に及ぼす微視的損傷の影響2013

    • Author(s)
      藤崎和弘, 横山弘矢, 笹川和彦
    • Organizer
      機械学会2013年度年次大会
    • Place of Presentation
      岡山大学, 津島キャンパス
    • Related Report
      2013 Research-status Report
  • [Presentation] 鉄鋼材料内の介在物、組織の3次元情報収集と数値解析システムの開発

    • Author(s)
      横田秀夫, 藤崎和弘, 山下典理男, 中村篤人
    • Organizer
      日本鉄鋼協会 鉄鋼ゲノムの解明フォーラムシンポジウム
    • Place of Presentation
      東京工業大学, 大岡山キャンパス
    • Related Report
      2013 Research-status Report
  • [Presentation] Effect of Apatite Crystal Alignments on Anisotropic Fracture Characteristics of Cortical Bone

    • Author(s)
      K. Fujisaki, H. Yokoyama, M. Todoh, S. Tadano
    • Organizer
      Korea-Japan Joint Session/ KSME 2013 Bioengineering Division Spring Conference
    • Place of Presentation
      The Ocean Resort YeoSu, Korea
    • Related Report
      2013 Research-status Report
  • [Presentation] 後方散乱X線による歯牙表層アパタイトの結晶構造観察

    • Author(s)
      藤崎和弘、太田恭介、東藤正浩、但野茂
    • Organizer
      第23回バイオフロンティア講演会
    • Place of Presentation
      弘前文化センター
    • Related Report
      2012 Research-status Report
  • [Presentation] 生体硬組織の応力測定技術とバイオメカニクス

    • Author(s)
      藤崎和弘、但野茂、東藤正浩
    • Organizer
      第28回寒地技術シンポジウム
    • Place of Presentation
      弘前文化センター
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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