In vitro investigation on opening angle and hydrodynamic performance of four bileaflet valves in mitral position

Z. G. Feng*, M. Umezu, T. Fujimoto, T. Tsukahara, M. Nurishi, D. Kawaguchi

*この研究の対応する著者

研究成果

抄録

Four different designs of 25 mm bileaflet valves were tested in the mitral position using our originally developed in vitro test apparatus. By the aid of a high-speed video camera, it was observed that the SJM HP valve opened fully and the CM nearly opened fully (76°±2°). Max opening angle of the ATS and the On-X was 72°±3° and 81°±2°, respectively, whereas their opening angle was designed as 85° and 90°, respectively. Pressure gradients of the CM and the ATS were consistently higher than those of the On-X and the SJM HP. Closing volume for all the valves was within the acceptable range (<8%).

本文言語English
ホスト出版物のタイトルAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
出版社IEEE
ページ数1
ISBN(印刷版)0780356756
出版ステータスPublished - 1999 12 1
イベントProceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS) - Atlanta, GA, USA
継続期間: 1999 10 131999 10 16

出版物シリーズ

名前Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
1
ISSN(印刷版)0589-1019

Other

OtherProceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS)
CityAtlanta, GA, USA
Period99/10/1399/10/16

ASJC Scopus subject areas

  • 信号処理
  • 生体医工学
  • コンピュータ ビジョンおよびパターン認識
  • 健康情報学

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