Preliminary study of physiological control for the undulation pump ventricular assist device

Itsuro Saito, Kohei Ishii, Takashi Isoyama, Toshiya Ono, Hidemoto Nakagawa, Wei Shi, Yusuke Inoue, Yusuke Abe

研究成果: Conference contribution

6 被引用数 (Scopus)

抄録

The undulation pump ventricular assist device (UPVAD) is a small implantable ventricular assist device using an undulation pump. The UPVAD can produce pulsatile flow by changing the motor rotation speed of the UPVAD. Because the undulation pump is a volume displacement type pump, the inflow sucking occurs easily. The purpose of this study is to develop a suitable control method for the UPVAD. The UPVAD inflow cannula equipped with an implantable pressure sensor was inserted into the ventricle. Therefore, pressure variation that synchronized with the natural heartbeat and negative pressure spike caused the inflow sucking were observed. By changing the motor rotation speed that responded to the inflow pressure, the UPVAD could synchronize with the natural heartbeat and the UPVAD could generate a co-pulse assist flow. The inflow sucking could be released by reducing the motor rotation speed, if the inflow sucking was detected. The newly developed control method exhibited superior characteristics than existing ones due to high immunity against pressure sensor drift. The assist flow could be increased more than 15% and the inflow sucking occurrence could be decreased with this control method. The UPVAD could generate the suitable assist flow with the developed control method.

本文言語English
ホスト出版物のタイトル2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
ページ5218-5221
ページ数4
DOI
出版ステータスPublished - 2010 12 1
外部発表はい
イベント2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10 - Buenos Aires, Argentina
継続期間: 2010 8 312010 9 4

出版物シリーズ

名前2010 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10

Other

Other2010 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC'10
国/地域Argentina
CityBuenos Aires
Period10/8/3110/9/4

ASJC Scopus subject areas

  • 生体医工学
  • コンピュータ ビジョンおよびパターン認識
  • 信号処理
  • 健康情報学

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