| Summary: | 碩士 === 國立中央大學 === 機械工程研究所 === 97 === Generally,the marrow of intervertebral disk was begun degenerating by increasing age of human.This degenerating reduces the thickness of an intervertebral disk & hypertrophy of ligament & facet joint,so that it gives rise to stress the nerve and resulted in DDD. The solution for this kind of case is that we use the static fixation to recover the initial thickness of intervertebral disk by a surgical operation, so that we can solve the problem of degeneration of intervertebral disk. This research utilizes the "SolidWork" to construct the model of lumbar vertebra & static fixation.Firstly, we put the muscle force into the model of lumbar vertebra to make this analysis close to the status of reality. It analyzes three different kinds of model of lumbar vertebra via cosmosworks''s software of limited element : the normal lumbar vertebra、the lumbar vertebra with implanting an alloy of titanium,the lumbar vertebra with implanting 316L Stainless Steel fixation,there are three kinds of model to proceed the analysis of limited element. The majorly simulation is to analyze the height,change of angle,stress of nucleus pulposus,stress of pedicle of the model of lumbar vertebra and the status of stress distribution.
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