2013 Fiscal Year Final Research Report
Freezing needle preventing epidural puncture
| Project/Area Number |
23592313
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Anesthesiology/Resuscitation studies
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| Research Institution | Tokyo University of Technology |
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Principal Investigator |
NAEMURA Kiyoshi 東京工科大学, 医療保健学部, 准教授 (90302752)
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| Co-Investigator(Kenkyū-buntansha) |
FURUYA Kohei 岐阜大学, 工学部, 助教 (40580056)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 黄色靭帯 / 硬膜外麻酔 / 引張試験 / 有限要素解析 / Ogdenモデル |
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| Research Abstract |
In order to test the hypothesis about reduction in the deformation of the freeze ligamentum flavum (LF), tensile test in a freezing room and nonlinear finite element (FE) analysis were employed. Tensile test of the porcine LF was conducted both in a freezing room at -40 degrees Celsius and a laboratory at room temperature. Stress-strain diagram was obtained. To apply nonlinear FE analysis for the porcine LF, the 1st order Ogden coefficient of the porcine LF was identified from the stress-strain diagram from the tensile test. Assuming that the sharp bar pierced the LF when the Mises stress reached a constant value, the required deformation became shorter by 73% by freezing the LF.
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