J1102-4-3 血栓溶解用撹拌カテーテルの設計に関する研究(ライフサポート4:パワーアシスト・作業支援)

概要

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The cerebral thrombus or blood clot might cause cerebral stroke and even decease if the clot could not be dissolved within several hours after it was formed. We presented a treatment method of utilizing micro stirrer attached on the catheter tip. This paper presents the fundamental study on design of a micro stirrer for high effective dissolution of the second mode vibration from strong viscosity. Based on the experimental results, the micro stirrer is analyzed by FEM. Using the FEM, new type of stirrer are evaluated. The obtained results of the FEM analysis that the dissolution performance is influenced by the power into the fluid. Moreover, performance of the designed stirrer was obtained from FEM analysis of adding the dampers.
2009-09-12