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충격량에 의한 고장메커니즘을 활용한 추간체유합보형재의 신뢰성 평가 방법 및 개선에 관한 연구
유우진(Woo-Jin Yu),이용윤(Yong-Yoon Lee),허성용(Sung-Yong Heo),함중걸(Jung-Koel Ham) 한국신뢰성학회 2014 신뢰성응용연구 Vol.14 No.4
The Spinal cage is the cage-shaped implantable medical device used to treat structural abnormalities caused by degenerative intervertebral disks. In order to secure enough space to provide the mechanical stability and the intervertebral fusion, after removing the intervertebral disc, the Spinal cage is transplanted between the intervertebral space. A hammer is used to push the spinal cage into a narrow space during the spinal cage transplant surgery. Due to the impact and pressure, damage occurs frequently on the spinal cage. In this study, a test model is constructed to measure the value of impulse generally applied on the Spinal cage. The figures of internal impulse before and after the improvement of the Spinal cage are then compared to suggest direction to improve the reliability of the spinal cage.