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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Pages (from-to)O-532-O-533
JournalTransactions of Japanese Society for Medical and Biological Engineering
Volume52
DOIs
Publication statusPublished - 2014 Aug 17

Keywords

  • Blood pump
  • Hydrodynamic bearing
  • Impeller
  • Total artificial heart

ASJC Scopus subject areas

  • Biomedical Engineering

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