The Open Biomedical Engineering Journal




ISSN: 1874-1207 ― Volume 12, 2018

A Mini Axial and a Permanent Maglev Radial Heart Pump§



Kun-Xi Qian*, Wei-Min Ru, Hao Wang, Teng Jing
Inst. BME, Jiangsu Univ. Zhenjiang, 212013, China

Abstract

The implantability and durability have been for decades the focus of artificial heart R&D. A mini axial and a maglev radial pump have been developed to meet with such requirements.

The mini axial pump weighing 27g (incl.5g rotor) has an outer diameter of 21mm and a length of 10mm in its largest point, but can produce a maximal blood flow of 6l/min with 50mmHg pressure increase. Therefore, it is suitable for the patients of 40-60kg body weight. For other patients of 60-80kg or 80-100kg body weight, the mini axial pumps of 23mm and 25mm outer diameter had been developed before, these devices were acknowledged to be the world smallest LVADs by Guinness World Record Center in 2004.

The permanent maglev radial pump weighing 150g is a shaft-less centrifugal pump with permanent magnetic bearings developed by the author. It needs no second coil for suspension of the rotor except the motor coil, different from all other maglev pumps developed in USA, Japan, European, etc. Thus no detecting and controlling systems as well as no additional power supply for maglev are necessary. The pump can produce a blood flow up to as large as 10l/min against 100mmHg pressure.

An implantable and durable blood pump will be a viable alternative to natural donor heart for transplantation.



Article Information


Identifiers and Pagination:

Year: 2007
Volume: 1
First Page: 1
Last Page: 3
Publisher Id: TOBEJ-1-1
DOI: 10.2174/1874120700701010001

Article History:

Received Date: 25/4/2007
Revision Received Date: 18/5/2007
Acceptance Date: 22/5/2007
Electronic publication date: 31/5/2007
Collection year: 2007

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2007 Bentham Science Publishers Ltd.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.5/), which permits unrestrictive use, distribution, and reproduction in any medium, provided the original work is properly cited.


* Address correspondence to this author at the Inst. BME, Jiangsu Univ. Zhenjiang, 212013, China; Tel: 86-21-63042611; E-mail: kxqian@263.net


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