Chinese Journal of Tissue Engineering Research
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Wu Yue-heng1, 2, Huang Huan-lei2, Fan Rui-xin2, Qi Zhou-cuo1, Yao Li-ming1, Wu Chang-li2, Lu Ping-lan2, Cheng An-heng1, Xiao Xue-jun2
Received:
2012-11-10
Revised:
2013-01-24
Online:
2013-07-30
Published:
2013-07-30
Contact:
Xiao Xue-jun, M.D., Chief physician, Researcher, Department of Cardiovascular Surgery, Guangdong General Hospital, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Science, Guangzhou 510100, Guangdong Province, China
xiaoxuejun@tom.com
About author:
Wu Yue-heng★, Master, Assistant researcher, Medical Research Center, Guangdong Provincial Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Science, Guangzhou 510100, Guangdong Province, China
edgar_wu@yahoo.com.cn
Supported by:
National Natural Science Foundation of China, No. 30901468*; Combining Production and Research Project of Ministry of Education of Guangdong Province, No. 2008B090500210*
CLC Number:
Wu Yue-heng, Huang Huan-lei, Fan Rui-xin, Qi Zhou-cuo, Yao Li-ming, Wu Chang-li, Lu Ping-lan, Cheng An-heng, Xiao Xue-jun. Production and functional testing of polyurethane valve of the pediatric Luo-Ye pump[J]. Chinese Journal of Tissue Engineering Research, doi: 10.3969/j.issn.2095-4344.2013.31.005.
2.2 20 mL罗叶泵聚氨酯瓣膜的制作 图3是安装在注塑机上的瓣膜模具。图4是注塑成功的聚氨酯瓣膜。图5是聚氨酯瓣膜、罗叶泵配件和组装成功的20 mL罗叶泵。由图可知,实验成功的制作了20 mL罗叶泵。在制作过程中,特别要注意聚氨酯瓣膜瓣叶的注塑,因为瓣膜瓣叶比较薄,故其注塑的条件需仔细调节。瓣膜注塑的成功率较低,约为15%。 2.3 静止泄露测试结果 表1是两种三叶瓣的静止泄漏量,其测试过程参考GB 12279-2005(ISO5840-1990)。结果显示,两组瓣膜的静止泄漏量都非常小,远低于国家标准。静止泄漏量反映了瓣膜在静止状态下的闭合情况,结果显示瓣膜闭合非常好,其返流主要发生在三片瓣叶汇集的地方,即瓣膜中心处。"
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