DESIGN OF A CENTRIFUGAL BLOOD PUMP WITH MAGNETIC SUSPENSION

被引:17
作者
YAMANE, T [1 ]
IKEDA, T [1 ]
ORITA, T [1 ]
TSUTSUI, T [1 ]
JIKUYA, T [1 ]
机构
[1] UNIV TSUKUBA,INST CLIN MED,TSUKUBA,IBARAKI 305,JAPAN
关键词
CENTRIFUGAL BLOOD PUMP; ARTIFICIAL HEART;
D O I
10.1111/j.1525-1594.1995.tb02392.x
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
A new concept blood pump, whose impeller is suspended by permanent magnets and a mechanical pivot without seals or ball bearings, is presented in this paper. The primary aim of the blood pump is an application to implantable artificial hearts. The prototype model is of a centrifugal type with a four-vaned semiopen impeller 50 mm in diameter. Since this mechanism has no seals or ball bearings, flow stagnation or heat generation that might cause blood cell denaturation is expected to be small. The results of performance testing for the prototype model 2 were satisfactory regarding pump head and efficiency. The radial-suspension magnets and the magnetic coupling were stable. As a result, the present mechanism has been verified to be a candidate applicable to implantable artificial hearts.
引用
收藏
页码:625 / 630
页数:6
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