Magnetically suspended miniature fluid pump and method of designing the same
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United States of America Patent
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Sep 10, 2002
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app pub date -
Sep 20, 1999
filing date -
Jun 26, 1996
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Abstract
A rotary pump for pumping fluids through a patient having a housing with an internal region, a stator member and an impeller positioned within the housing and having impeller blades, wherein the impeller is magnetically suspended and rotated, and wherein the geometric configuration of the rotary pump is sized and proportioned to minimize stagnant and traumatic fluid flow within the rotary pump. The plurality of magnetic impeller blades are preferably rare earth, high-energy-density magnets selected from the group consisting of samarium cobalt and neodymium-iron-boron alloy.
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