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WorldHeart Announces Further Milestone in Miniaturized Assist Pump Development
Date:9/6/2007

of support to patients in advanced heart failure. A U.S. feasibility-phase bridge-to-transplant study of the Levacor VAD is planned to begin in late 2007 or early 2008. WorldHeart has been interacting with the FDA regarding final pre-clinical qualification testing and the clinical protocol for the upcoming study.

About the Levacor VAD

The Levacor is a next-generation rotary VAD. It is the only bearingless, fully magnetically levitated implantable centrifugal rotary pump with clinical experience. An advanced, continuous-flow pump, the Levacor VAD uses magnetic levitation to fully suspend the spinning rotor, its only moving part, inside a compact housing. The proprietary levitation technology employs a unique arrangement of magnetics expected to provide optimal system simplicity and reliability. In contrast to pumps with blood-immersed mechanical or hydrodynamic bearings, full magnetic levitation eliminates wear within the pump as well as eliminates dependence on blood properties for rotor suspension. It is expected to provide improved blood compatibility by allowing greater clearances around the rotor and more idealized flow patterns across a wider range of operation. The Levacor VAD has been designed with a high safety profile and robust range of operation to address the needs of current and future heart failure patients.

About the PediaFlow VAD

The PediaFlow VAD is an implantable, magnetically levitated rotary blood pump based on WorldHeart's proprietary MagLev technology. Configured for pediatric use, the PediaFlow VAD is being developed to provide medium-term (< 1 year) implantable circulatory support to patients from birth to 2 years of age with congenital or acquired heart disease. PediaFlow design and development is funded by the National Institutes of Health and involves a consortium that encompasses the University of Pittsburgh, Children's Hospital of Pittsburgh, the University of Pittsburgh Medical Center, the Artificial Heart Progra
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SOURCE World Heart Corporation
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