Abstract
Fluid mechanical characteristics of blood flow in the vicinity of prosthetic heart valves are investigated by in vitro experiments using a laser-Doppler anemometer (LDA) under pulsatile flow condition. Average flow velocity and root mean square disturbance velocity at each point are obtained by a phase average method. Cross-sectional velocity distributions are plotted 3-dimensionally by computer analyses of LDA data, by which one can observe the overall feature of valve flow not only quantitatively but also visually. Rod-like fluid flow throughout the cross-section is observed in the early systolic phase and then a cylindrical jet flow rapidly appears along the inner wall of model aorta in CC Bjoerk-Shiley valve.
| Original language | English |
|---|---|
| Pages (from-to) | 434-435 |
| Number of pages | 2 |
| Journal | Japanese journal of medical electronics and biological engineering |
| Volume | 22 |
| Publication status | Published - 1984 Apr 1 |
| Externally published | Yes |
ASJC Scopus subject areas
- Biomedical Engineering