Blood pump

Details Blood pump Blood pump

A - Human Necessities

61

M

A61M 1/10 (2006.01)

Patent

CA 2611313

A blood pump (26) includes a stator assembly including a fluid inlet (24) and a fluid outlet (26). A rotor assembly (120) includes an impeller (40) rotatable about an axis (44) to move fluid from the inlet (24) to the outlet (26). A motor (50) imparts rotation of the impeller (40) about the axis (44). The motor (50) includes a motor stator (52) fixed to the stator assembly (122), a motor rotor (54) fixed to the rotor assembly (120), and a radial motor gap (34) between the stator (52) and the rotor (54). The pump (20) is configured to direct a mixed blood flow from the fluid inlet (24) to the fluid outlet (26) and a wash flow through the motor gap (34).

L'invention concerne une pompe sanguine (26) qui comprend un ensemble stator présentant une entrée de fluide (24) et une sortie de fluide (26). Un ensemble rotor (120) comprend une turbine (40) montée rotative autour d'un axe (44), conçue pour faire passer le fluide de l'entrée (24) à la sortie (26). Un moteur (50) imprime un mouvement rotatif à la turbine (40) autour de l'axe (44). Le moteur (50) comprend un stator (52) fixé à l'ensemble stator (122), un rotor (54) fixé à l'ensemble rotor (120), et un espacement radial (34) entre le stator (52) et le rotor (54). La pompe (20) est conçue pour diriger un flux sanguin mélangé de l'entrée de fluide (24) vers la sortie de fluide (26) et un flux de lavage dans l'espacement (34).

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