Preliminary design of the mechanical circulation assist device for Fontan circulation using shape memory alloy fibers

A. Yamada*, Y. Shiraishi, T. K. Sugai, H. Miura, T. Shiga, M. O. Hashem, C. Koga, H. Hashimoto, Y. Tsuboko, T. Yambe, M. Yamagishi, D. Homma

*この研究の対応する著者

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Fontan procedure is one of the common surgical treatment of congenital heart diseases. Patients with Fontan circulation have single ventricle in the systemic circulation with the total cavopulmonary connection. Pulmonary blood flow in the Fontan circulation is lower than in healthy subjects, and the central venous pressure may elevate. In this study, we developed a mechanical circulatory assist device for the extracardiac conduit for Fontan circulation and examined its driving method in the mock pediatric pulmonary circulatory system. We used shape memory alloy (SMA) fiber as an actuator of the device. The SMA actuator wrapped the extracardiac conduit between inferior vena cava and pulmonary artery. We designed two different types of the circulatory assist devices. We drove these devices in two different modes by the synchronized and sequential motions. The flow volume was 10mL/min against a load of 10mmHg, and the maximum contractile force indicated 60mmHg in the mock test. These results suggested the effective mechanical assistance for Fontan pulmonary circulation.

本文言語English
ホスト出版物のタイトルWorld Congress on Medical Physics and Biomedical Engineering
ページ119-121
ページ数3
DOI
出版ステータスPublished - 2013
外部発表はい
イベントWorld Congress on Medical Physics and Biomedical Engineering - Beijing, China
継続期間: 2012 5月 262012 5月 31

出版物シリーズ

名前IFMBE Proceedings
39 IFMBE
ISSN(印刷版)1680-0737

Conference

ConferenceWorld Congress on Medical Physics and Biomedical Engineering
国/地域China
CityBeijing
Period12/5/2612/5/31

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 生体医工学

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