- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | LIU Shuqin, BIAN Zhongguo, LI Ruijian, LIU Kai, LIN Bentao, ZHAO Sipeng, ZONG Qinghui. Maglev Artificial Heart Pump and Experimental Study on ECMO[J]. Journal of Southwest Jiaotong University, 2023, 58(4): 820-826, 862. doi: 10.3969/j.issn.0258-2724.20211012
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Extracorporeal membrane oxygenation (ECMO) can replace human heart and lung work and create opportunities to save lives. ECMO has made outstanding achievements in defending against the novel coronavirus pneumonia and has thus been called a lifesaving appliance. In view of the power source of ECMO, namely the maglev artificial heart pump, its maglev system and contactless high-efficiency magnetic coupling driver were studied. The maglev artificial heart pump was controlled by a multi-input and multi-output intelligent control system to realize variable speed and stable operation. The experiments of pressure, flow, and speed of the maglev artificial heart pump were carried out. The developed maglev artificial heart pump was used for three days of animal experiments and active withdrawal. The results show that the extracorporeal maglev centrifugal pump shows excellent stable operation characteristics and keeps the speed unchanged; the pressure difference between the inlet and outlet does not change much when the flow rate varies greatly. The pressure difference between the inlet and outlet of the extracorporeal maglev centrifugal pump can reach 750 mmHg at a speed of 5 000 r/min, which has a wide working range. After 15 days of continuous reliability experiments, all test parameters conform to the law of characteristic curves. During the test, the vital signs of the sheep were monitored and were stable after the machine was removed, which verified the effectiveness and safety of the developed maglev artificial heart pump applied in ECMO.
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