Surgery – Cardiac augmentation
Reexamination Certificate
2005-03-15
2005-03-15
Layno, Carl (Department: 3762)
Surgery
Cardiac augmentation
C415S182100
Reexamination Certificate
active
06866625
ABSTRACT:
A pump assembly and estimation and control system therefor, the pump adapted for continuous flow pumping of blood. In a particular form, the pump is a centrifugal pump wherein the impeller is entirely sealed within the pump housing and is exclusively hydrodynamically suspended therein against movement in three translational and two rotational degrees of freedom as the impeller rotates within the fluid urged by electromagnetic means external to the pump cavity. Hydrodynamic suspension is assisted by the impeller having deformities therein such as blades with surfaces tapered from the leading edges to the trailing edges of bottom and top surfaces thereof.
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Ayre Peter Joseph
Tansley Geoffrey Douglas
Watterson Peter Andrew
Woodard John Campbell
Knobbe Martens Olson & Bear LLP
Layno Carl
University of Technology
Ventrassist Pty Ltd
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