NDLI: Peristaltic hemodynamics of a new pediatric circulatory assist system for Fontan circulation using shape memory alloy fibers

Content Provider	IEEE Xplore Digital Library
Author	Yamada, A. Shiraishi, Y. Miura, H. Yambe, T. Omran, M.H. Shiga, T. Tsuboko, Y. Homma, D. Yamagishi, M.
Copyright Year	2013
Description	Author affiliation: Inst. of Dev., Aging & Cancer, Tohoku Univ., Sendai, Japan (Shiraishi, Y.; Yambe, T.) \|\| Grad. Sch. of Med., Tohoku Univ., Sendai, Japan (Omran, M.H.; Shiga, T.) \|\| Grad. Sch. of Biomed. Eng., Tohoku Univ., Sendai, Japan (Yamada, A.; Tsuboko, Y.) \|\| Dept. of Pediatric Cardiovascular Surg., Kyoto Prefectural Univ. of Med., Kyoto, Japan (Yamagishi, M.) \|\| Toki Corp., Tokyo, Japan (Homma, D.)
Abstract	Fontan procedure is one of the common surgical treatments of congenital heart diseases. Patients with Fontan circulation have single ventricle in the systemic circulation with the total cavopulmonary connection. We have been developing a pulmonary circulatory assist device using shape memory alloy fibers for Fontan circulation with total cavopulmonary connection. It consisted of the shape memory alloy fibers, the diameter of which are 100 μm. The fibers could wrap the ePTFE conduit for Fontan TCPC connection from the outside. We designed the sequential motion control system for sophisticated pulmonary hemodynamics by the pulsatile flow generation. In order to achieve pulsatile flow assistance in pulmonary arterial system, we fabricated a mechanical structure by sequential contraction of shape memory alloy fibers. Then, we developed a sequential contraction controller for the assist system, which could reproduce the wall contractile velocity at 6.0 to 20.0 cm/sec. We examined hemodynamic characteristic of its function using a mock circulatory system, which consisted of two overflow tanks representing venous and pulmonary arterial pressures in Fontan circulation. As a result, the pulmonary circulation assist device with sequential contraction could achieve effective promotion of the pulsatility in pulmonary arterial flow.
Starting Page	683
Ending Page	686
File Size	791505
Page Count	4
File Format	PDF
ISBN	9781457702167
ISSN	1557170X
DOI	10.1109/EMBC.2013.6609592
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-03
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical fiber devices Heart Shape memory alloys Educational institutions Hemodynamics Surgery Circulatory system
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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