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  1. Development of the Nimbus/University of Pittsburgh Innovative ventricular assist system.

    Article, Communication - En anglais

    International Conference on Circulatory Support Devices for Severe Cardiac Failure. Houston, TX, USA, 1997/10/03.


    Nimbus Inc, and the University of Pittsburgh's McGowan Center for Artificial Organ Development have been collaborators on rotary blood pump technology initiatives since 1992.

    Currently, a major focus is an innovative ventricular assist system (IVAS) that features an implantable, electrically powered axial flow blood pump.

    In addition to the blood pump, a major development item is the electronic controller and the control algorithm for modulating pump speed in response to varying physical demand.


    Methods used in developing the IVAS include computational fluid dynamic modeling of the pump's interior flow field, flow visualization of the flow field using laser-based imaging, computer simulation of blood pump-physiological interactions, vibroaccoustic monitoring, and an extensive in vivo test program.


    Results to date, which are presented below, include successful in vivo tests of blood pumps with blood-immersed bearings, and feasibility demonstration of vibroacoustic monitoring in this application.


    This unique blend of industrial experience and technologies with the University-based Research and Development Center has greatly enhanced the progress made on this IVAS project.

    Mots-clés Pascal : Assistance cardiocirculatoire, Ventricule cardiaque, Coût, Economie santé, Description, Développement, Technique, Homme, Réanimation cardiocirculatoire

    Mots-clés Pascal anglais : Cardiocirculatory support, Heart ventricle, Costs, Health economy, Description, Development, Technique, Human, Intensive cardiocirculatory care

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 99-0472274

    Code Inist : 002B27B01. Création : 22/03/2000.