HeartMate III: Pump design for a centrifugal LVAD with a magnetically levitated rotor

被引：59

作者：

Bourque, K

Gernes, DB

Loree, HM

Richardson, JS

Poirier, VL

Barletta, N

Fleischli, A

Foiera, G

Gempp, TM

Schoeb, R

Litwak, KN

Akimoto, T

Watach, MJ

Litwak, P

机构：

[1] Thoratec Corp Inc, Woburn, MA 01888 USA

[2] Levitronix GmbH, Zurich, Switzerland

[3] Univ Pittsburgh, Pittsburgh, PA USA

来源：

ASAIO JOURNAL | 2001年 / 47卷 / 04期

关键词：

Centrifugal pumps - Hydrodynamics - Magnetic levitation - Rotors;

D O I：

10.1097/00002480-200107000-00020

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A long-term, compact left ventricular assist device (LVAD), the HeartMate ill, 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.

引用

页码：401 / 405

页数：5

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