Visualization of the hinge flow in a 5:1 scaled model of the medtronic parallel bileaflet heart valve prosthesis

被引：17

作者：

Healy, TM

Fontaine, AA

Ellis, JT

Walton, SP

Yoganathan, AP ^{[1
]}

机构：

[1] Georgia Inst Technol, Cardiovasc Fluid Mech Lab, Sch Chem Engn, Petit Inst Bioengn & Biosci, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Cardiovasc Fluid Mech Lab, Sch Mech Engn, Petit Inst Bioengn & Biosci, Atlanta, GA 30332 USA

来源：

EXPERIMENTS IN FLUIDS | 1998年 / 25卷 / 5-6期

关键词：

Channel flow - Dyes - Flow patterns - Heart valve prostheses;

D O I：

10.1007/s003480050257

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this work, a flow visualization experiment was performed to elucidate features of the retrograde hinge flow through a 5 : 1 scaled model of the Medtronic Parallel bileaflet heart valve. It was hypothesized that this model would provide detailed flow information facilitating identification of flow structures associated with thrombus formation in this valve. The experimental protocol was designed to ensure fluid dynamic similarity between the model and prototype heart valves. Flow was visualized using dye injection. The detailed flow structures observed showed the hinge's inflow channel was the most suspect region for thrombus formation. Here a complex helical structure was observed.

引用

页码：512 / 518

页数：7