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Development of grinding devices for bone resection for minimal injury surgery

Research Project

Project/Area Number 20H02047
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 18020:Manufacturing and production engineering-related
Research InstitutionOsaka University

Principal Investigator

Enomoto Toshiyuki  大阪大学, 大学院工学研究科, 教授 (20403149)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Keywords研削加工 / 医療機器 / 外科 / ダイヤモンドバー / 骨切除 / 機械工作・生産工学 / 医療・福祉
Outline of Research at the Start

本研究では低侵襲手術法を用いた骨切除,すなわち内視鏡下という 直径15 mm程度の円筒狭小空間における骨切除において,良好な術野を確保しながら骨切除時の発熱による生体組織の熱損傷を抑制できる骨切除用研削デバイスを開発する.

Outline of Final Research Achievements

Existing surgical technologies are unable to prevent thermal injury to adjacent tissues such as nerves that result from grinding heat generated during bone resection. To address this issue, bone grinding experiments were conducted under saline irrigation using commercial surgical diamond wheels focusing on the adhesion and shedding of bone chips on wheel surface.
On the basis of the findings, new diamond wheels with a hydrophilic-treated surface and a cool air supply method were developed for making a gas single-phase or liquid single-phase state near the grinding point. The wheels and cooling method significantly and stably suppressed bone temperature elevation compared to the commercial wheels.

Academic Significance and Societal Importance of the Research Achievements

外科手術,特に脊椎外科手術の分野では小径軸付き研削工具(ダイヤモンドバー)による骨切除が頻繁に行われるが,その際に生じる熱が骨近傍の神経などの重要部位を侵襲してしまい,後遺症麻痺といった重篤な問題がたびたび発生する.本研究では,研削工具の表面を親水化する,あるいは冷却水にかわり10℃程度にコントロールした冷風を供給することにより,骨切除時の発熱を大幅に,かつ安定に抑制することに成功した.このように本研究成果は骨切除術に対して,新たな画期的な医用機器を提供するものである.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (8 results)

All 2022 2021 2020

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Bone grinding using coarse-grained diamond wheels to suppress thermal damage2022

    • Author(s)
      Mizutani Takeru、Satake Urara、Enomoto Toshiyuki
    • Journal Title

      Precision Engineering

      Volume: 78 Pages: 163-170

    • DOI

      10.1016/j.precisioneng.2022.08.003

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surgical oscillating saw blade to suppress forces in bone cutting2022

    • Author(s)
      Wang Han、Satake Urara、Enomoto Toshiyuki
    • Journal Title

      CIRP Annals

      Volume: 71 Issue: 1 Pages: 73-76

    • DOI

      10.1016/j.cirp.2022.04.066

    • Related Report
      2022 Annual Research Report
  • [Journal Article] A study on a cooling method for bone grinding using diamond bur for minimally invasive surgeries2021

    • Author(s)
      Takeru Mizutani, Urara Satake, Toshiyuki Enomoto
    • Journal Title

      Precision Engineering

      Volume: 70 Pages: 155-163

    • DOI

      10.1016/j.precisioneng.2021.01.010

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Influence of Blade Edge Shape on the Chip Evacuation and Cutting Force in Surgical Oscillating Saw Blade2022

    • Author(s)
      Han WANG, Urara SATAKE, Toshiyuki ENOMOTO
    • Organizer
      the 19th International Conference on Precision Engineering
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study on the instantaneous cutting forces in bone oscillating sawing2022

    • Author(s)
      Han Wang, Urara Satake, Toshiyuki Enomoto
    • Organizer
      the 24th International Symposium on Advances in Abrasive Technology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 骨切除時の熱侵襲を抑制する方法の検討2021

    • Author(s)
      水谷 建,佐竹うらら,榎本俊之
    • Organizer
      2021年度砥粒加工学会学術講演会講演論文集
    • Related Report
      2021 Annual Research Report
  • [Presentation] Hard tissues and soft tissues machining2021

    • Author(s)
      Toshiyuki Enomoto
    • Organizer
      The 6th International Symposium on Micro/Nano Mechanical Machining and Manufacturing
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 骨切除時の熱侵襲を抑制する冷却方法の検討2020

    • Author(s)
      水谷 建,佐竹うらら,榎本俊之
    • Organizer
      2020年度砥粒加工学会学術講演会講演論文集
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2024-12-25  

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