1203 椎間板剛性を補償する脊椎後方固定デバイスの最適設計(OS12 バイオメカニクカルデザインI) [in Japanese] 1203 Optimal Design of Posterior Fixation Device with Intervertebral Stiffness [in Japanese]
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The spine consists of vertebrae separated by flexible intervertebral disks. The intervertebral disks act as the flexible spacer between vertebrae and carry significant compressive loads from gravitational and muscle forces. The spine fixation surgery apply to many spinal disorders. The rigid fixation, however, might cause the damage of intervertebral disks. Therefore, it is important to develop the spinal fixation device with the biological intervertebral stiffness. In this study, the flexion, extension, lateral bending and axial rotation stiffness of bovine lumber spine were measured experimentally. And, the finite element based optimization technique was used to design the posterior fixation device with measured stiffness. As a result, optimal design of posterior fixation device was obtained using the proposed method.
- The Proceedings of Design & Systems Conference
The Proceedings of Design & Systems Conference 2005.15(0), 74-75, 2005
The Japan Society of Mechanical Engineers