2101 Evaluation of frictional characteristics of microscopic dimples processed by THG laser processing machine

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  • 2101 THGレーザによる微細ディンプルの作製と摩擦特性評価(テクスチャリングと低摩擦(2),一般講演)

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A cerebral aneurysm is the dilation, bulging, or ballooning out of part of the wall of a vein or artery in the brain. If the cerebral aneurysm ruptures, it will become serious life-threatening condition. An aneurysm clip (sugita clip) is a medical instrumentation that is used in operation of the cerebral aneurysm to clip the ruptured aneurysm and to reduce the risk of rebleeding. In order to prevent the sugita clips from slipping out of the blood vessels, a number of pyramidal dimples are formed on their clamp surfaces. However, it was not verified whether the form of pyramidal dimple was optimum or not. In this research, we used a THG laser process machine to produce the clamp surface with dimples or grooves. Frictional characteristics of each surface texturing was examined.

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