Magnetically suspended miniature fluid pump and method of design

Details Magnetically suspended miniature fluid pump and method of design Magnetically suspended miniature fluid pump and method of design

1996-06-26

2000-01-18

Freay, Charles G.

Pumps

Motor driven

Pump within rotary working member

417354, 4174231, 41742312, 415900, F04B 1700, F03B 1300

Patent

active

060152729

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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