Magnevad--the world's smallest magnetic-bearing turbo pump

Artificial Organs
Michael Goldowsky

Abstract

The first animal implant of our Magnevad LVAD is scheduled for the fourth quarter of 2003. This is being performed by the George E. Reed Heart Center of Westchester Medical Center and by New York Medical College; both are in Valhalla, NY. This article summarizes 3 years of development of the miniature axial flow LVAD. Our LVAD has new innovations not found in any other turbo pump to minimize thrombus, blood turbulence, flow separation, and the generation of microemboli. The Magnevad is only 25 mL in volume, similar in size to the Micromed & Jarvik 2000 axial flow turbo pumps that have contacting bearings. US Patent 6 527 699 was issued to Gold Medical on March 4, 2003 and World Wide PCT patents are pending. The discussed improvements (patents pending) are designed to minimize flow separation and turbulence, the precursors of microemboli that lodge in end organs. This problem has been largely ignored in the published literature. A new long-term stable miniature ultrasonic position sensor is used for bearing control. It measures the axial position of the rotor to obtain LVAD differential pressure. Differential pressure is used to obtain pulsating flow and automatic physiologic control. The term "fourth generation pump" is being c...Continue Reading

References

Jan 30, 2002·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Michael Goldowsky
Jun 13, 2002·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Guruprasad A GiridharanGeorge M Pantalos
Jun 26, 2003·Artificial Organs·Guruprasad A Giridharan, Mikhail Skliar

❮ Previous
Next ❯

Citations

Feb 24, 2005·Artificial Organs·Paul S Malchesky
Sep 28, 2005·Artificial Organs·Michael GoldowskyGeorge Reed
May 11, 2006·Artificial Organs·Hideo HoshiSetsuo Takatani
Apr 18, 2007·Artificial Organs·Junichi AsamaAkira Shimokohbe

❮ Previous
Next ❯

Related Concepts

Related Feeds

Artificial Heart & Ventricular Assist Devices

Total artificial hearts (TAH) and ventricular assist devices (VADs) provide cardiac support for patients with end-stage heart disease and have significantly improved the survival of these patients. Discover the latest research on Artificial Heart and Ventricular Assist Devices here.

Blood Clotting Disorders

Thrombophilia includes conditions with increased tendency for excessive blood clotting. Blood clotting occurs when the body has insufficient amounts of specialized proteins that make blood clot and stop bleeding. Here is the latest research on blood clotting disorders.

Related Papers

ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs
Michael Goldowsky
The Annals of Thoracic Surgery
Michael P SiegenthalerStephen Westaby
The Journal of Heart and Lung Transplantation : the Official Publication of the International Society for Heart Transplantation
Timothy J MyersIgor D Gregoric
© 2021 Meta ULC. All rights reserved