HeartMate III: Pump Design for a Centrifugal LVAD with a Magnetically Levitated Rotor
- 1 July 2001
- journal article
- research article
- Published by Wolters Kluwer Health in Asaio Journal
- Vol. 47 (4), 401-405
- https://doi.org/10.1097/00002480-200107000-00020
Abstract
A long-term, compact left ventricular assist device (LVAD), the HeartMate III, has been designed and fabricated, featuring a centrifugal pump with a magnetically levitated rotor. The pump has been optimized by in vitro testing to achieve a design point of 7 L/min against 135 mm Hg at high hydrodynamic efficiency (30%) and to be capable of up to 10 L/min under such a load. Furthermore, the pump has demonstrated no mechanical failures, low hemolysis (4–10 mg/dl plasma free Hb), and low thrombogenicity during six (40, 27, 59, 42, 27, and 49-day) in vivo bovine studies.Keywords
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