Optimal design and analysis of a novel magnetic drive blood pump.

IF 1.4 4区医学 Q4 ENGINEERING, BIOMEDICAL

International Journal of Artificial Organs Pub Date : 2025-03-01 Epub Date: 2025-02-11 DOI:10.1177/03913988251316678

Zina Zhu, Yupeng Zhang, Renyu Wan, Peng Wu, Guohua Cui

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引用次数: 0

Abstract

Utilizing magnetic coupling to drive the artificial heart blood pump in a non-contact and wireless manner offers a viable solution that can effectively avoid problems such as percutaneous lead infection. However, the existing magnetic drive blood pumps have problems such as low utilization efficiency and limited transmission torque due to significant leakage of permanent magnets. To address these limitations, this paper introduces a magnetic modulation-based magnetic drive blood pump, which uses salient pole iron sheets to modulate the magnetic field generated by permanent magnets, thereby minimizing leakage and enhancing the efficiency of permanent magnet utilization. Through finite element analysis of electromagnetic fields, the magnetic circuit structure of the magnetic modulation type magnetic drive blood pump is optimized. Additionally, the influence of the air gap distance of the magnetic drive blood pump on transmission performance is analyzed. Finally, a comprehensive experimental setup for blood pump is developed. By measuring the load torque and spatial magnetic flux density parameters of the magnetic drive blood pump and comparing them to the simulation outcomes, the effectiveness of the proposed magnetic modulation type blood pump is verified.

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新型磁力驱动血泵的优化设计与分析。

利用磁耦合以非接触和无线方式驱动人工心脏血泵提供了一种可行的解决方案，可以有效地避免经皮铅感染等问题。然而，现有的磁力驱动血泵由于永磁体泄漏严重，存在着利用效率低、传递力矩有限等问题。针对这些局限性，本文介绍了一种基于磁调制的磁驱动血泵，利用凸极铁片调制永磁体产生的磁场，从而最大限度地减少泄漏，提高永磁体的利用效率。通过电磁场有限元分析，优化了磁调制型磁驱动血泵的磁路结构。此外，还分析了磁驱动血泵气隙距离对传动性能的影响。最后，建立了一套完整的血泵实验装置。通过测量磁驱动血泵的负载转矩和空间磁通密度参数，并与仿真结果进行比较，验证了磁调制型血泵的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Artificial Organs 医学-工程：生物医学

CiteScore

3.40

自引率

5.90%

发文量

审稿时长

3 months

期刊介绍： The International Journal of Artificial Organs (IJAO) publishes peer-reviewed research and clinical, experimental and theoretical, contributions to the field of artificial, bioartificial and tissue-engineered organs. The mission of the IJAO is to foster the development and optimization of artificial, bioartificial and tissue-engineered organs, for implantation or use in procedures, to treat functional deficits of all human tissues and organs.