Flow through an improved ball valve for the heart assist device
Objective of the present study is the hemodynamic investigation of the fluidmechanics a ball valve developed for ventricular assist devices with improved parameters. The flow was investigated using Digital Particle Image Velocimetry with an enlarged model of the valve (2.8:1). The flow was recorded...
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| Veröffentlicht in: | Biomedizinische Technik 2002, Vol.47 Suppl 1 Pt 1, p.154-157 |
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| container_title | Biomedizinische Technik |
| container_volume | 47 Suppl 1 Pt 1 |
| creator | Aguilera, D Affeld, K Lederer, Ch Goubergrits, L |
| description | Objective of the present study is the hemodynamic investigation of the fluidmechanics a ball valve developed for ventricular assist devices with improved parameters. The flow was investigated using Digital Particle Image Velocimetry with an enlarged model of the valve (2.8:1). The flow was recorded using a high speed video camera with 250 fps and analyzed by a cross-correlation method implemented in the software DaVis by LaVision. The results confirmed the improvement of the ball valve performed by a numerical study. The flow separations on the ball valve housing observed in the first design version was eliminated in the final design of the novel valve. Hence a valve of this design applied in ventricular assist devices can be expected to have a lower rate of thromboembolic complications. |
| format | Article |
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The flow was investigated using Digital Particle Image Velocimetry with an enlarged model of the valve (2.8:1). The flow was recorded using a high speed video camera with 250 fps and analyzed by a cross-correlation method implemented in the software DaVis by LaVision. The results confirmed the improvement of the ball valve performed by a numerical study. The flow separations on the ball valve housing observed in the first design version was eliminated in the final design of the novel valve. Hence a valve of this design applied in ventricular assist devices can be expected to have a lower rate of thromboembolic complications.</description><identifier>ISSN: 0013-5585</identifier><identifier>PMID: 12451801</identifier><language>ger</language><publisher>Germany</publisher><subject>Biomechanical Phenomena ; Blood Flow Velocity - physiology ; Blood Viscosity - physiology ; Equipment Design ; Heart-Assist Devices ; Hemodynamics - physiology ; Humans ; Models, Cardiovascular</subject><ispartof>Biomedizinische Technik, 2002, Vol.47 Suppl 1 Pt 1, p.154-157</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4024</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12451801$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Aguilera, D</creatorcontrib><creatorcontrib>Affeld, K</creatorcontrib><creatorcontrib>Lederer, Ch</creatorcontrib><creatorcontrib>Goubergrits, L</creatorcontrib><title>Flow through an improved ball valve for the heart assist device</title><title>Biomedizinische Technik</title><addtitle>Biomed Tech (Berl)</addtitle><description>Objective of the present study is the hemodynamic investigation of the fluidmechanics a ball valve developed for ventricular assist devices with improved parameters. 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Hence a valve of this design applied in ventricular assist devices can be expected to have a lower rate of thromboembolic complications.</description><subject>Biomechanical Phenomena</subject><subject>Blood Flow Velocity - physiology</subject><subject>Blood Viscosity - physiology</subject><subject>Equipment Design</subject><subject>Heart-Assist Devices</subject><subject>Hemodynamics - physiology</subject><subject>Humans</subject><subject>Models, Cardiovascular</subject><issn>0013-5585</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo1j7FOwzAURT2AaCn8AvLEFsl2_Op4QqiigFSJAfbo2XkhQU4T7CSIvycS7XSXo6NzL9haCJlnAAWs2HVKX0JoACuu2EoqDbIQcs0e9qH_4WMT--mz4XjkbTfEfqaKOwyBzxhm4nUfF4R4QxhHjim1aeQVza2nG3ZZY0h0e9oNe98_fexessPb8-vu8ZANoGXmlPDOgzGkpUCjjADjagUasEC7ldYDetLKSye9Ura2QjsyFZiipgLzDbv_ty5t3xOlseza5CkEPFI_pXIxSr2VagHvTuDkOqrKIbYdxt_yfDj_AzHHUBg</recordid><startdate>2002</startdate><enddate>2002</enddate><creator>Aguilera, D</creator><creator>Affeld, K</creator><creator>Lederer, Ch</creator><creator>Goubergrits, L</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>2002</creationdate><title>Flow through an improved ball valve for the heart assist device</title><author>Aguilera, D ; Affeld, K ; Lederer, Ch ; Goubergrits, L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p541-b20cbc577e410a727057bf2545a8a9619c5ace42c1b1c229f904be7d578fe8a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>ger</language><creationdate>2002</creationdate><topic>Biomechanical Phenomena</topic><topic>Blood Flow Velocity - physiology</topic><topic>Blood Viscosity - physiology</topic><topic>Equipment Design</topic><topic>Heart-Assist Devices</topic><topic>Hemodynamics - physiology</topic><topic>Humans</topic><topic>Models, Cardiovascular</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aguilera, D</creatorcontrib><creatorcontrib>Affeld, K</creatorcontrib><creatorcontrib>Lederer, Ch</creatorcontrib><creatorcontrib>Goubergrits, L</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Biomedizinische Technik</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aguilera, D</au><au>Affeld, K</au><au>Lederer, Ch</au><au>Goubergrits, L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Flow through an improved ball valve for the heart assist device</atitle><jtitle>Biomedizinische Technik</jtitle><addtitle>Biomed Tech (Berl)</addtitle><date>2002</date><risdate>2002</risdate><volume>47 Suppl 1 Pt 1</volume><spage>154</spage><epage>157</epage><pages>154-157</pages><issn>0013-5585</issn><abstract>Objective of the present study is the hemodynamic investigation of the fluidmechanics a ball valve developed for ventricular assist devices with improved parameters. 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| identifier | ISSN: 0013-5585 |
| ispartof | Biomedizinische Technik, 2002, Vol.47 Suppl 1 Pt 1, p.154-157 |
| issn | 0013-5585 |
| language | ger |
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| source | MEDLINE; De Gruyter journals |
| subjects | Biomechanical Phenomena Blood Flow Velocity - physiology Blood Viscosity - physiology Equipment Design Heart-Assist Devices Hemodynamics - physiology Humans Models, Cardiovascular |
| title | Flow through an improved ball valve for the heart assist device |
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