带有冲洗孔的单轴磁悬浮血泵的溶血特性

The hemolytic characteristics of monopivot magnetic suspension blood pumps with washout holes.

作者信息

Maruyama Osamu, Nishida Masahiro, Tsutsui Tatsuo, Jikuya Tomoaki, Yamane Takashi

机构信息

National Institute of AIST, Institute for Human Science and Biomedical Engineering, Namiki 1-2, Tsukuba, Ibaraki 305-8564, Japan.

出版信息

Artif Organs. 2005 Apr;29(4):345-8. doi: 10.1111/j.1525-1594.2005.29059.x.

DOI:10.1111/j.1525-1594.2005.29059.x

PMID:15787632

Abstract

The hemolytic characteristics of monopivot magnetic suspension blood pumps as a function of impeller washout hole configuration and female pivot shape are observed. The pump impellers are designed with three washout hole configurations for blood circulation, and four female pivot shapes to reduce blood stagnation and to enhance antithrombogenicity. The hemolytic characteristics of the monopivot pumps were observed to be better than those of a currently available commercial centrifugal blood pump, BP-80, and changed to be nearly equal when the female pivot shape was changed. This indicates that hemolysis in monopivot pumps is mainly caused by shear stress between the male and female pivots.

摘要

观察了单轴磁悬浮血泵的溶血特性与叶轮冲洗孔结构和母轴形状的关系。泵叶轮设计有三种用于血液循环的冲洗孔结构，以及四种母轴形状，以减少血液停滞并增强抗血栓形成能力。观察到单轴血泵的溶血特性优于目前市售的离心血泵BP - 80，并且当母轴形状改变时，溶血特性变得几乎相同。这表明单轴血泵中的溶血主要是由公轴和母轴之间的剪切应力引起的。