Abstract:
:This work presents results of preliminary studies concerning application of magnetic bearing in a ventricular assist device (VAD) being developed by Dante Pazzanese Institute of Cardiology-IDPC (São Paulo, Brazil). The VAD-IDPC has a novel architecture that distinguishes from other known VADs. In this, the rotor has a conical geometry with spiral impellers, showing characteristics that are intermediate between a centrifugal VAD and an axial VAD. The effectiveness of this new type of blood pumping principle was showed by tests and by using it in heart surgery for external blood circulation. However, the developed VAD uses a combination of ball bearings and mechanical seals, limiting the life for some 10 h, making impossible its long-term use or its use as an implantable VAD. As a part of development of an implantable VAD, this work aims at the replacement of ball bearings by a magnetic bearing. The most important magnetic bearing principles are studied and the magnetic bearing developed by Escola Politécnica of São Paulo University (EPUSP-MB) is elected because of its very simple architecture. Besides presenting the principle of the EPUSP-MB, this work presents one possible alternative for applying the EPUSP-MB in the IDPC-VAD.
journal_name
Artif Organsjournal_title
Artificial organsauthors
Horikawa O,de Andrade AJ,da Silva I,Bock EGdoi
10.1111/j.1525-1594.2008.00551.xsubject
Has Abstractpub_date
2008-04-01 00:00:00pages
334-41issue
4eissn
0160-564Xissn
1525-1594pii
AOR551journal_volume
32pub_type
杂志文章abstract::In this study a highly biocompatible polymer membrane was prepared by surface modification. An artificial cornea was also developed for clinical applications. Silicone rubber (SR) membrane was grafted with hydrophilic monomers such as 2-hydroxyethyl methacrylate (HEMA) and acrylic acid by plasma induced grafted polyme...
journal_title:Artificial organs
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journal_title:Artificial organs
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journal_title:Artificial organs
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journal_title:Artificial organs
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journal_title:Artificial organs
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journal_title:Artificial organs
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journal_title:Artificial organs
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journal_title:Artificial organs
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journal_title:Artificial organs
pub_type: 杂志文章
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journal_title:Artificial organs
pub_type: 杂志文章
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更新日期:1994-10-01 00:00:00
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journal_title:Artificial organs
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journal_title:Artificial organs
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更新日期:2020-06-01 00:00:00
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journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1997.tb00354.x
更新日期:1997-02-01 00:00:00
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journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.13128
更新日期:2018-04-01 00:00:00
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journal_title:Artificial organs
pub_type: 杂志文章
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journal_title:Artificial organs
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journal_title:Artificial organs
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journal_title:Artificial organs
pub_type: 杂志文章
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更新日期:2016-10-01 00:00:00
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journal_title:Artificial organs
pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 历史文章,杂志文章,评审
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journal_title:Artificial organs
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