F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
103/111
F04D 7/02 (2006.01) A61M 1/10 (2006.01) F04D 13/02 (2006.01) F04D 29/10 (2006.01) A61M 1/12 (2006.01)
Patent
CA 1078255
TITLE OF THE INVENTION: BLOOD PUMP INVENTORS: SANFORD (NMI) REICH and WILLIAM H. GATES ABSTRACT OF THE DISCLOSURE A centrifugal blood pump and method of pump- ing blood is disclosed to provide assistance for a dys- functional heart. The pump is provided with a magnetic drive system which permits a snychronous magnetic coup- ling with a separate power unit disposed immediately adjacent the pump housing. The pump has a single moving part which includes the combination of an impeller con- nected to a magnetic drive rotor. The impeller is of improved blade and hub design to automatically move blood, and minimize formation of blood clots and fibrous amalga- mation in the region of blood flow. Further, the impeller blades are configured to extend almost completely across the bottom surface of the impeller hub to enhance effic- iency and clot-free operation. The magnetic drive system floats on a fluid surface of saline solution, which hydro- dynamically supports and lubricates the magnetic drive rotor contained in a compartment separate from the impeller and facilitates a prolonged period of service-free operation.
291945
Gates William H.
Reich Sanford
LandOfFree
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