Yamane T, Ikeda T, Orita T, Tsutsui T, Jikuya T
Mechanical Engineering Laboratory, MITI, Tsukuba, Japan.
Artif Organs. 1995 Jul;19(7):625-30. doi: 10.1111/j.1525-1594.1995.tb02392.x.
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.
本文介绍了一种新型概念血泵，其叶轮由永磁体和机械枢轴悬浮支撑，无密封件或滚珠轴承。该血泵的主要目标是应用于植入式人工心脏。原型模型为离心式，配有直径50毫米的四叶半开式叶轮。由于该机构没有密封件或滚珠轴承，预计可能导致血细胞变性的流动停滞或发热现象会很少。原型模型2的性能测试结果在泵压头和效率方面令人满意。径向悬浮磁体和磁耦合稳定。因此，已证实该机构是适用于植入式人工心脏的候选方案。
