Novel detecting device with a vibration sensor to determine the blood pump drive status in a pneumatic extracorporeal ventricular assist device

• Kashiwa Koichi

  Department of Medical Engineering, The University of Tokyo Hospital

• 西村 隆

  東京大学医学部附属病院 重症心不全治療開発講座

• Tamai Hisayoshi

  Department of Medical Engineering, The University of Tokyo Hospital

• Kubo Hitoshi

  Department of Medical Engineering, The University of Tokyo Hospital

• Nakamura Atsushi

  Department of Medical Engineering, The University of Tokyo Hospital

• 杉谷 弘文

  株式会社 シーダース

• 山家 智之

  東北大学大学院医工学研究科 人工臓器医工学講座

• 許 俊鋭

  東京大学医学部附属病院 重症心不全治療開発講座

• 小野 稔

  東京大学医学部附属病院 心臓外科

Bibliographic Information

Other Title

• 振動センサーを用いた検知装置で空気駆動式、体外設置型補助人工心臓の駆動状態をモニタリングする新たな方法

Abstract

The drive tube-related troubles, i.e., tube bending or disconnection, in the NIPRO-ventricular assist device(VAD)might directly cause cease of the blood pump. However, the driver which is usually used in clinical practice does not contain a safeguard for detecting such drive tube-related accidents. Therefore, we developed an external detecting device that mainly incorporates a vibration sensor in order to determine the drive status of the blood pump. First, the response of the device was assessed using a mock circulation. Next, this device was mounted and examined in two patients when pump-off test was performed. The mock circulation results showed that this device could detect not only disconnection and complete occlusion of the drive tube but also incomplete occlusion of the drive tube, regardless of the settings of the VAD or bending part of the drive tube. The pump-off test results showed that this device accurately detected cease of the blood pumps without being affected by the cardiac pulsation. These results suggest that this detecting device is feasible and useful as an external safeguard for the patients in whom the NIPRO-VAD is implanted.

Journal

• Japanese Journal of Extra-Corporeal Technology

  Japanese Journal of Extra-Corporeal Technology 39 (4), 415-421, 2012

  The Japanese Society of Extra-Corporeal Technology in Medicine

Keywords

• ventricular assist device
• detecting device
• drive tube
• vibration sensor

Details

• CRID: 1390282679632131328
• NII Article ID: 10031136648
• NII Book ID: AN1020635X
• DOI: 10.7130/jject.39.415
• ISSN: 18845452
• ISSN: 09122664
• Web Site: https://search.jamas.or.jp/link/ui/2013129574
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed