Effect of impeller vane number and angles on pump hemolysis.
- Author:
Kunxi QIAN
1
;
Zhigang FENG
;
Pei ZENG
;
Weimin RU
;
Haiyu YUAN
Author Information
1. Institute of Biomedical Engineering, University of Jiangsu, Zhenjiang 212013.
- Publication Type:Journal Article
- MeSH:
Heart-Assist Devices;
adverse effects;
Hemolysis;
Humans;
In Vitro Techniques;
Prosthesis Design
- From:
Journal of Biomedical Engineering
2003;20(4):605-607
- CountryChina
- Language:Chinese
-
Abstract:
To evaluate the effect of impeller design on pump hemolysis, five impellers with different number of vanes or different vane angles were manufactured and tested in one pump for hemolysis comparison. The impellers are made to have the same dimension and same logarithmic spiral vane from which coincide with the stream surfaces in the pump, according to the analytical and three-dimensional design method developed by the authors. Consequently, an impeller with 6 vanes and 30 degrees vane angle has the lowest hemolysis index. This result agrees with the theoretical analyses of other investigators searching optimal number of vanes and vane angle to achieve the highest efficiency of the pump.
