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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
|
pubmed:dateCreated |
1997-6-25
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pubmed:abstractText |
A small axial flow ventricular assist device (VAD) measuring 3 inches long and 1 inch in diameter is in development. The pump consists of a spinning inducer/ impeller, a flow straightener (FLS), and a diffuser enclosed in a cylindrical flow tube. The impeller has rod-shaped permanent magnets embedded within its 6 blades and is activated magnetically by the motor stator which is positioned outside the flow tube. At the completion of a previous study, the FLS was identified as a thrombogenic area. The aim of the present study was to evaluate the thrombogenicity of redesigned FLSs (swept-back and bulbous types), compared with standard type (STD) FLS. A total of 15 pumps (STD, n = 7; swept-back, n = 4; and bulbous, n = 4) were sequentially implanted into 4 calves paracorporeally in a short-term ex vivo test. The STD and bulbous FLSs experienced thrombus formation, but the swept-back FLS was thrombus free during a 48 h screening test.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
|
pubmed:issn |
0160-564X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
21
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
339-43
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9096811-Analysis of Variance,
pubmed-meshheading:9096811-Animals,
pubmed-meshheading:9096811-Cattle,
pubmed-meshheading:9096811-Diffusion,
pubmed-meshheading:9096811-Heart-Assist Devices,
pubmed-meshheading:9096811-Hemolysis,
pubmed-meshheading:9096811-Pulsatile Flow,
pubmed-meshheading:9096811-Thrombosis,
pubmed-meshheading:9096811-United States,
pubmed-meshheading:9096811-United States National Aeronautics and Space Administration
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pubmed:year |
1997
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pubmed:articleTitle |
Improved flow straighteners reduce thrombus in the NASA/DeBakey axial flow ventricular assist device.
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pubmed:affiliation |
Department of Surgery, Baylor College of Medicine, Houston, Texas 77030, USA.
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pubmed:publicationType |
Journal Article,
In Vitro
|