Development and initial performance of a miniature axial flow blood pump using magnetic fluid shaft seal

• Published in: Journal of artificial organs Vol. 26; no. 1; pp. 12 - 16
• Main Authors: Okamoto, Eiji, Yano, Tetsuya, Sekine, Kazumitsu, Inoue, Yusuke, Shiraishi, Yasuyuki, Yambe, Tomoyuki, Mitamura, Yoshinori
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 01.03.2023; Springer Nature B.V
• Subjects: Axial flow; Axial flow pumps; Biomedical Engineering and Bioengineering; Blood pumps; Cardiac Surgery; Catheters; Differential pressure; Finite element method; Friction; Friction loss; Iron; Magnetic fields; Magnetic fluids; Medical instruments; Medicine; Medicine & Public Health; Neodymium; Nephrology; Original Article; Permanent magnets; Pressure; Sealing; Impella; Catheter mounted; Magnetic fluid shaft seal; Axial flow blood pump; Magnetic fluid

In this study, we developed a new catheter-mounted micro-axial flow blood pump (MFBP) using a new miniature magnetic fluid shaft seal (MFSS). The prototype of the catheter-mounted MFBP had a maximum diameter of 8 mm and a length of 50 mm. The new MFSS composed a neodymium magnet ring, an iron ring,...