代用弁のTurbulance―Mechanical valveとXenograftの差異―

笠置 康; 和田 寿郎; 横山 正義; 柳沢 正敏; 日野 恒和; 河村 剛史; 長柄 英男; 竹田 晴男; 板岡 俊成; 白 楽淑; 毛井 純一; 伊藤 隆一; 松田 哲郎; 田原 士郎

doi:10.11392/jsao1972.10.601

Flow characteristics of five types of prosthetic valves

Y. KASAGI, J. WADA, M. YOKOYAMA, M. YANAGISAWA, T. HINO, T. KAWAMURA, H. NAGARA, H. TAKEDA, T. ITAOKA, N. S. PAIK, J. KEI, R. ITO, T. MATSUDA, S. TAHARA

Author information

Y. KASAGI
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
J. WADA
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
M. YOKOYAMA
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
M. YANAGISAWA
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
T. HINO
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
T. KAWAMURA
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
H. NAGARA
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
H. TAKEDA
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
T. ITAOKA
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
N. S. PAIK
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
J. KEI
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
R. ITO
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
T. MATSUDA
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College
S. TAHARA
Dept. of Thoracic and Cardiovascular Surgery Tokyo Women's Medical College

JOURNAL FREE ACCESS

1981 Volume 10 Issue 2 Pages 601-605

DOI https://doi.org/10.11392/jsao1972.10.601

Details

Abstract

Flow characteristics of five types of prosthetic valves were evaluated with pulsatile flow.
Valves tested were the Starr-Edwards valve, the Björk-Shiley valve, the Hall-Kaster valve, the S. J. M. valve and the Hancock xengraft.
Aluminium micro-leaves were mixed into the water of the pulse duplicating system. Flow characteristics of the valves were observed and photographed in each phase by 16mm movie and 35mm black and white film.
The Starr-Edwards valve caused extensive stagnation of flow.
The Björk-Shiley valve and the Hall-Kaster valve produced turblance flow with similar direction. The stagnation at the small aperture side of the Hall-Kaster valve was smaller than that of the Björk-Shiley valve. The S. J. M. valve showed two stagnation near the central portion arround the hinge. The Hancock xenograft showed central jetting flow and the stagnation caused by the cusp.

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