F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
F04D 3/02 (2006.01) A61M 1/10 (2006.01) F04D 13/06 (2006.01) F04D 29/52 (2006.01) F16C 39/06 (2006.01) H02K 1/27 (2006.01) H02K 7/09 (2006.01) H02K 7/14 (2006.01) H02K 29/06 (2006.01)
Patent
CA 2259642
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.
L'invention concerne une pompe rotative pour le pompage de fluides chez un patient. Elle comporte un boîtier ayant un espace intérieur, un stator et un moyeu à ailettes à suspension et rotation magnétique placé dans le boîtier. Les dimensions et les proportions géométriques de la pompe rotative sont adaptées pour réduire au minimum la stagnation et l'écoulement traumatique des fluides dans le dispositif. On utilise de préférence des aimants à haute densité d'énergie en métaux des terres rares choisis dans le groupe des alliages samarium-cobalt et néodyme-fer-bore pour fabriquer la pluralité d'ailettes magnétiques du moyeu.
Antaki James F.
Burgreen Gregory W.
Groom Nelson J.
Paden Bradley E.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
The Government Of The United States Of America As Represented By
University Of Pittsburgh
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