Investigation of the right blood pump for the helical flow total artificial heart

Terumi Yurimoto; Itsuro Saito; Takashi Isoyama; Yusuke Inoue; Masami Sato; Shintaro Hara; Xin Yang Li; Haruka Murakami; Yukino Kawase; Toshiya Ono; Kyoko Fukazawa; Kazuhiko Ishihara; Minoru Ono; Yusuke Abe

doi:10.11239/jsmbe.52.O-532

Investigation of the right blood pump for the helical flow total artificial heart

Terumi Yurimoto, Itsuro Saito, Takashi Isoyama, Yusuke Inoue, Masami Sato, Shintaro Hara, Xin Yang Li, Haruka Murakami, Yukino Kawase, Toshiya Ono, Kyoko Fukazawa, Kazuhiko Ishihara, Minoru Ono, Yusuke Abe

PreClinical Research Center

Research output: Contribution to journal › Article › peer-review

Abstract

The total artificial heart (TAH) has been expected to solve some problems of heart transplant. We have been developing the TAH using helical flow pump (HFP). The HFP has a hydrodynamic bearing and can eject pulsatile flow. To date, satisfactory pump was developed for the left pump, however for the right pump, there remains the problem in the hydrodynamic bearing. The purpose of this study was to investigate the right pump in order that hydrodynamic bearing functions well in pulmonary circulation and to achieve an improvement in the right pump. Based on the investigation, among various parameters of the pump structure, the vane of the impeller was decided to be smaller. The performance of the improved right pump showed that the pump could work in wider range than the original pump, which was more suitable for pulmonary circulation. In animal experiment, the improved right pump worked in a stable condition. However, the problem of accuracy in dimension of the bearings was found, which should be improved rapidly.

Original language	English
Pages (from-to)	O-532-O-533
Journal	Transactions of Japanese Society for Medical and Biological Engineering
Volume	52
DOIs	https://doi.org/10.11239/jsmbe.52.O-532
Publication status	Published - 2014 Aug 17

Keywords

Blood pump
Hydrodynamic bearing
Impeller
Total artificial heart

ASJC Scopus subject areas

Biomedical Engineering

Access to Document

10.11239/jsmbe.52.O-532

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Yurimoto, T., Saito, I., Isoyama, T., Inoue, Y., Sato, M., Hara, S., Li, X. Y., Murakami, H., Kawase, Y., Ono, T., Fukazawa, K., Ishihara, K., Ono, M., & Abe, Y. (2014). Investigation of the right blood pump for the helical flow total artificial heart. Transactions of Japanese Society for Medical and Biological Engineering, 52, O-532-O-533. https://doi.org/10.11239/jsmbe.52.O-532

Investigation of the right blood pump for the helical flow total artificial heart. / Yurimoto, Terumi; Saito, Itsuro; Isoyama, Takashi; Inoue, Yusuke; Sato, Masami; Hara, Shintaro; Li, Xin Yang; Murakami, Haruka; Kawase, Yukino; Ono, Toshiya; Fukazawa, Kyoko; Ishihara, Kazuhiko; Ono, Minoru; Abe, Yusuke.

In: Transactions of Japanese Society for Medical and Biological Engineering, Vol. 52, 17.08.2014, p. O-532-O-533.

Research output: Contribution to journal › Article › peer-review

Yurimoto, T, Saito, I, Isoyama, T, Inoue, Y, Sato, M, Hara, S, Li, XY, Murakami, H, Kawase, Y, Ono, T, Fukazawa, K, Ishihara, K, Ono, M & Abe, Y 2014, 'Investigation of the right blood pump for the helical flow total artificial heart', Transactions of Japanese Society for Medical and Biological Engineering, vol. 52, pp. O-532-O-533. https://doi.org/10.11239/jsmbe.52.O-532

Yurimoto, Terumi ; Saito, Itsuro ; Isoyama, Takashi ; Inoue, Yusuke ; Sato, Masami ; Hara, Shintaro ; Li, Xin Yang ; Murakami, Haruka ; Kawase, Yukino ; Ono, Toshiya ; Fukazawa, Kyoko ; Ishihara, Kazuhiko ; Ono, Minoru ; Abe, Yusuke. / Investigation of the right blood pump for the helical flow total artificial heart. In: Transactions of Japanese Society for Medical and Biological Engineering. 2014 ; Vol. 52. pp. O-532-O-533.

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AU - Li, Xin Yang

AU - Murakami, Haruka

AU - Kawase, Yukino

AU - Ono, Toshiya

AU - Fukazawa, Kyoko

AU - Ishihara, Kazuhiko

AU - Ono, Minoru

AU - Abe, Yusuke

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AB - The total artificial heart (TAH) has been expected to solve some problems of heart transplant. We have been developing the TAH using helical flow pump (HFP). The HFP has a hydrodynamic bearing and can eject pulsatile flow. To date, satisfactory pump was developed for the left pump, however for the right pump, there remains the problem in the hydrodynamic bearing. The purpose of this study was to investigate the right pump in order that hydrodynamic bearing functions well in pulmonary circulation and to achieve an improvement in the right pump. Based on the investigation, among various parameters of the pump structure, the vane of the impeller was decided to be smaller. The performance of the improved right pump showed that the pump could work in wider range than the original pump, which was more suitable for pulmonary circulation. In animal experiment, the improved right pump worked in a stable condition. However, the problem of accuracy in dimension of the bearings was found, which should be improved rapidly.

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