Development of rear-impeller axial flow blood pump for realization of axial flow blood pump installed at aortic valve position

Okamoto, Eiji; Yano, Tetsuya; Inoue, Yusuke; Shiraishi, Yasuyuki; Yambe, Tomoyuki; Mitamura, Yoshinori

Development of rear-impeller axial flow blood pump for realization of axial flow blood pump installed at aortic valve position

Okamoto, Eiji; Yano, Tetsuya; Inoue, Yusuke et al.

Artificial organs, 2019, 43(9), 828-833

Permalink : https://hdl.handle.net/2115/79206

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/79206
タイトル	Development of rear-impeller axial flow blood pump for realization of axial flow blood pump installed at aortic valve position
著者	Okamoto, Eiji ; Yano, Tetsuya ; Inoue, Yusuke ; Shiraishi, Yasuyuki ; Yambe, Tomoyuki ; Mitamura, Yoshinori
e-Rad_Researcher 30240633 著者名 Okamoto, Eiji
e-Rad_Researcher 70404853 著者名 Yano, Tetsuya
e-Rad_Researcher 80611079 著者名 Inoue, Yusuke
e-Rad_Researcher 00329137 著者名 Shiraishi, Yasuyuki
e-Rad_Researcher 70241578 著者名 Yambe, Tomoyuki
e-Rad_Researcher 70002110 著者名 Mitamura, Yoshinori
言語	英語
キーワード	artificial heart
	axial flow blood pump
	jellyfish valve
	left ventricular assist device
発行日	2019-09
出版者	John Wiley & Sons
収録物名	Artificial organs
巻(号)	43(9)
ページ	828-833
抄録	In this study, rear-impeller axial flow blood pumps (RIAFBP) were developed to realize a trans-valve axial ventricular assist device (VAD) which consists of the latter blood pump and a polymer monomembrane aortic valve, such as the jellyfish valve. The motor of the RIAFBP is installed in the left ventricle, and its impeller is placed at the aortic valve position. In the prototype RIAFBP, the rotation of the motor is sustained by polyethylene bushings. The RIAFBP has a length of 50 mm and diameter of 19.6 mm. The miniature RIAFBP has the same construction as that of the prototype; however, it employs a ceramic bearing and fin bearing to improve endurance and to reduce blood stagnation. The miniature RIAFBP has a length of 63 mm and diameter of 12 mm. Both RIAFBPs were examined by an in vitro experiment using a 33% glycerin solution. The prototype RIAFBP achieved a maximum pump outflow of 8.5 L/min against a pump head of 100 mm Hg at a rotational speed of 12 000 rpm. The miniature RIAFBP achieved 7 L/min against a pump head of 70 mm Hg at a rotational speed of 21 600 rpm. In conclusion, the miniature RIAFBP has enough pump performance to realize the trans-valve axial VAD.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This is the peer reviewed version of the following article: Development of rear-impeller axial flow blood pump for realization of axial flow blood pump installed at aortic valve position, which has been published in final form at http://doi.org/10.1111/aor.13476. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
PISSN	0160-564X
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1111/aor.13476