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Development of the Pulsation Device for Rotary Blood Pumps
Author(s) -
Yambe Tomoyuki,
Shiraishi Yasuyuki,
Sekine Kazumitsu,
Shibata Muneichi,
Yamaguchi Tasuku,
Jian Liu Hong,
Yoshizawa Makoto,
Tanaka Akira,
Matsuki Hidetoshi,
Sato Fumihiro,
Haga Youichi,
Esashi Masayoshi,
Tabayashi Kouichi,
Mitamura Yoshinori,
Sasada Hiroshi,
Nitta Shinichi
Publication year - 2005
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1111/j.1525-1594.2005.00159.x
Subject(s) - ventricle , diaphragm (acoustics) , pulse (music) , actuator , biomedical engineering , pulse width modulation , materials science , medicine , electrical engineering , cardiology , engineering , voltage , loudspeaker
A rotary blood pump (RP) is desirable as a small ventricular assist device (VAD). However, an RP is nonpulsatile. We tried to develop a device that attaches a pulse to the RP. We also tried to develop a pulse‐generating equipment that was not air‐pressure driven. The ball screw motor was considered a candidate. The application of a small‐sized shape memory alloy was also attempted. An electrohydraulic system was adopted, and actuator power was connected to the diaphragm. The diaphragm was placed on the outer side of the ventricle. Most RPs that have been developed all over the world drain blood from the ventricle. The wave of a pulse should be generated if a pulse is added by the drawn part. The output assistance from the outer side of the ventricle was attempted in animal experiments, and the device operated effectively. This device can be used during implantable operation of RP. This may serve as an effective device in patients experiencing problems in peripheral circulation and in the function of internal organs.