Abstract:
:The aim of this study was to assess the in vivo performance of a new microaxial rotary blood pump developed for long-term intraportal implantation. The pump, measuring 7 mm in diameter, has a single stage impeller and is powered by a microelectric motor. The pump was implanted into the portal vein in 13 large white pigs under general anesthesia. All animals recovered after the portal pump implantation, and they were observed until the pump failed. The 2 longest running pumps performed for 40 and 36 h, respectively. Either thrombus formation or technical problems, especially in the bearings, were the main causes of pump failure during the experiment. No local or systemic adverse effects were observed during the portal pumping period. Full recovery of the animals following intraportal pump implantation was achieved. However, further technical improvements to the pump are required to maintain a longer performance in vivo.
journal_name
Artif Organsjournal_title
Artificial organsauthors
Havlík R,Kerkhoffs W,Jiao LR,Schumacher O,Reul H,Habib Ndoi
10.1046/j.1525-1594.2001.06772.xsubject
Has Abstractpub_date
2001-05-01 00:00:00pages
392-4issue
5eissn
0160-564Xissn
1525-1594pii
aor6772journal_volume
25pub_type
杂志文章abstract::Different methods are used, clinically and experimentally, to assist severely impaired heart function by means of skeletal muscle. The efficiency of these methods is restricted by skeletal muscle losing strength after transpositioning and during conditioning and not being sufficiently resistant to fatigue. This is mai...
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journal_title:Artificial organs
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pub_type: 杂志文章
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更新日期:1995-08-01 00:00:00
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pub_type: 杂志文章
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journal_title:Artificial organs
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