A magnetic fluid seal for rotary blood pumps: Long-term performance in liquid
โ Scribed by Yoshinori Mitamura; Sayaka Takahashi; Shuichi Amari; Eiji Okamoto; Shun Murabayashi; Ikuya Nishimura
- Publisher
- Elsevier
- Year
- 2010
- Tongue
- English
- Weight
- 464 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1875-3892
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โฆ Synopsis
A magnetic fluid (MF) seal enables mechanical contact-free rotation of the shaft and hence has excellent durability. The mechanism and a new MF with a higher magnetization of 47.9 kA/m. The sealing performance of the MF seal installed in a rotary blood pump was studied. The seal was perfect against a pressure of 150 mmHg in a continuous flow of 4.0 L/min for 275 days and against a pressure of 175 mmHg in a continuous flow of 3.9 L/min for 217 days. We have developed a MF seal that works in liquid against pressure mostly used clinically. The magnetic fluid seal is promising as a shaft seal for rotary blood pumps.
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