機械弁の表面壊食に及ぼす加速耐久試験機コンプライアンス構造の影響

DOI 被引用文献2件 参考文献8件

書誌事項

タイトル別名
  • Effect of compliant structure in the accelerated heart valve fatigue tester on the surface pitting of the disk.

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抄録

There are various reports on the fracture of mechanical heart valves implanted in human or animals, and they are pointed out that problems are induced by an erosion of disk surface, due to a cavitation effect. We have been investigating this mechanism using our original accelerated fatigue tester, and it was found that erosion was enhanced by a compliance effect in the test circuit. In this study, effects of compliance value and location on erosion were discussed, while disk closing velocity was measured by a high speed video camera. It was clarified that faster closing velocity was resulting in a enhancement of erosion on the disk surface.

収録刊行物

  • 人工臓器

    人工臓器 27 (1), 168-173, 1998

    一般社団法人 日本人工臓器学会

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