2019 Fiscal Year Final Research Report
Surgical tools with highly functional surfaces
| Project/Area Number |
16H04244
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Production engineering/Processing studies
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2020-03-31
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| Keywords | 研削加工 / 医療機器 / 外科 |
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| 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 and it was revealed that the strong adhesion of bone swarf on the wheel surface promoted the temperature elevation at the grinding point. On the basis of the findings, new diamond wheels with fluorine-treated and porous surfaces were developed in the hopes of promptly shedding the adhesion of bone swarf on the wheel surface. These wheels significantly and stably suppressed bone temperature elevation compared to the commercial wheels.
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| Free Research Field |
加工学
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| 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）による骨組織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をたびたび発生させている．本研究では，研削工具の表面を撥水化および多孔質化することにより，骨切除時の発熱を大幅に，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．
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