Newly designed univalved artificial heart

Shin Ichi Nitta, Hiroyuki Hashimoto, Taro Sonobe, Yoshiaki Katahira, Tomoyuki Yambe, Shigeru Naganuma, Motonao Tanaka, Naoshi Sato, Makoto Miura, Hitoshi Mohri, Hirokuni Hiyama, Hidetoshi Matuki

Research output: Contribution to journalConference articlepeer-review

9 Citations (Scopus)


A univalved artificial heart (AH) powered electromagnetically in the frequency range of 1-30 Hz was developed to obtain a totally implantable AH. This small sized AH consisted of a vibrating tube, coils, magnets, and a jellyfish valve as an outlet AH valve. The fluid mechanical, hemodynamic, and hematologic properties were evaluated in a mock circulation and 10 animal experiments using adult goats. This vibrating electromagnetic AH could generate more than 10 L/min as an output volume, with 10 Hz vibration using 20 volts supplied voltage. It could also provide two kinds of flow and pressure patterns, in constant-peak and periodic-peak patterns. The valves of free hemoglobin remained within acceptable limits. The authors concluded that this new type of pump was useful as a totally implantable AH, ventricular assist, or organ assist system.

Original languageEnglish
Pages (from-to)M240-M241
JournalASAIO Transactions
Issue number3
Publication statusPublished - 1991 Jul

ASJC Scopus subject areas

  • Biophysics


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