フルテキストファイル
著者
田村 篤敬 Department of Mechanical and Aerospace Engineering, Graduate School of Engineering, Tottori University 研究者総覧 KAKEN
Yano, Wataru Department of Mechanical Engineering, Graduate School of Sustainability Science, Tottori University
Yoshimura, Daichi Mechanical and Physical Engineering, Tottori University
Nishikawa, Soichiro Mechanical and Physical Engineering, Tottori University
キーワード
Spinal dura mater
biaxial stretch
proportional-derivative control
spinal cord injury
cerebrospinal fluid
spontaneous CSF leak
抄録
In this study, we developed an equi-load biaxial tensile tester and applied it to a series of mechanical tests using specimens obtained from the porcine spinal dura mater. The dural sample exhibited a nonlinear and anisotropic behavior as it was more deformable in the longitudinal direction rather than in the circumferential direction at lower strains; i.e., mechanical response of the longitudinal direction was significantly compliant in the Toe region compared to that of the circumferential direction under 1:1 biaxial stretching. However, we have not observed a significant difference with respect to the resultant strain and Young’s modulus between the longitudinal and circumferential directions at higher strains or in the Linear region. Our results also indicated that the upper thoracic region (T1) was relatively compliant compared to the lumbar region (L), where the failure load was almost equal between them because the dural thickness of T1 was five-fold greater than that of L; i.e., spinal dura mater became stiffer and stronger at further distances from the brain. This shows structural effectiveness and may be preferable to mechanically protect the vulnerable spinal cord from externally applied impact loads.
出版者
World Scientific
資料タイプ
学術雑誌論文
外部リンク
ISSN
02195194
EISSN
17936810
掲載誌名
JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY
20
5
発行日
2020-06
出版者DOI
著者版フラグ
著者版
著作権表記
Electronic version of an article published as JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY. 2020. 20(5). doi:10.1142/S0219519420500232. (C) World Scientific Publishing Company. https://www.worldscientific.com/worldscinet/jmmb
掲載情報
Tamura Atsutaka, Yano Wataru, Yoshimura Daichi, et al. MECHANICAL CHARACTERIZATION OF SPINAL DURA USING A PD-CONTROLLED BIAXIAL TENSILE TESTER. JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY. 2020. 20(5). doi:10.1142/S0219519420500232
部局名
工学部・工学研究科
言語
英語
Web of Science Key ut
WOS:000545745100002