| Computational fluid dynamic analysis of the flow field in the newly developed inflow cannula for a bridge-to-decision mechanical circulatory support. | |
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MedLine Citation:
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PMID: 21842260 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The flow field of the newly developed inflow cannula designed for a bridge-to-decision circulatory support was numerically analyzed by computational fluid dynamics. This new cannula has elastic struts at the tip that enable minimal invasive insertion into the left ventricle while maintaining a wide inflow area by its lantern-like tip. The cannula's hydrodynamic loss, including change in pressure loss due to deformation, and its thrombus potential were numerically examined. Hydraulic resistance of the cannula with blood analog fluid was 31 mmHg at the flow rate of 5.0 L/min. There were regions on the inner surface of the struts where the shear rate was <100 s(-1), and these regions can be a potential for thrombus formation, especially at low flow rates or under limited anticoagulant therapy. |
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Authors:
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Tomonori Tsukiya; Koichi Toda; Hirohito Sumikura; Yoshiaki Takewa; Fumikazu Watanabe; Yoshiyuki Taenaka; Eisuke Tatsumi |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-8-13 |
Journal Detail:
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Title: Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs Volume: - ISSN: 1619-0904 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-8-15 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9815648 Medline TA: J Artif Organs Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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National Cerebral and Cardiovascular Center Research Institute, Suita, Japan, tsukiya@ri.ncvc.go.jp. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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