<研究報告>現行人工弁の流体力学的評価

概要

論文の詳細を見る
In order to elucidate performance characteristics of a few prosthetic heart valves, the present in vitro study was carried out to investigate disturbances of flow past the prostheses. Measurements of pressure and velocity around, and visualization of flow across, the .valves were made with 5 kinds of the valves attached to the entrance of a metacrylate model of the aorta. Comparison of the pressure drops caused by these valves with those by plate orifices revealed that the prostheses correspnded to the orifices, the opening area of which was approximately 45% of the cross-sectional area of the inlet section. Highly turbulent flow taking place downstream of the valves seemed to be responsible for the energy loss induced by the valves. The structure of the turbulence was studied in association with the formation of thrombi and focal vascular lesions.
沼津工業高等専門学校の論文
1987-01-31