1215 ステントと血管モデルの接触状態の可視化(G02-2 医療とバイオエンジニアリング(2),G02 バイオエンジニアリング)

概要

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In the treatments using stents, there is a problem known as neointimal hyperplasia. One of many possible theories postulating the causes of inthnal hyperplasia is the stress concentration at the contact area of the arterial wall with the stents. Therefore, we investigated the stress distribution at the contact area between the stent and the artery. We used two artery models; one is plane and another has a plaque, and two kinds of link stents with different circumferential numbers of the cells and the links. Firstly, we investigated the contact condition by finite element method. Secondly, we carried out the experimental visualization of the contact area to examine the validity of the simulation. It was proved that the stress distribution of the arterial wall is affected by the structure of the stents and the experimental distribution was similar to the calculated one.
社団法人日本機械学会の論文
2005-09-18