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US 6,247,892 B1Granted
Continuous flow rotary pump
AssigneeIMPSA International Inc.
InventorsLev Kazatchkov, Lucas Varela
Life of this patent
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Abstract
A continuous flow axial-flow pump for impelling a fluid under a continuous pattern without kinetic side effects to minimize and eliminate damage to fluid, the pump comprising two axial adjacent rotors rotating in opposite directions.
Claims3
A continuous axial flow blood pump having at least one stage, comprising an outer casing and rotor assembly mounted in the casing, the rotor assembly comprising:
- at least two adjacent rotors rotating in opposite directions with angular speeds ω1 and ω2 complying with the formula:
- g · H 2 η 2 · ω 2 = - g · H 1 η 1 · ω 1 .
A method of pumping blood comprising the steps of:
- providing intake and exhaust conduits;
- providing blood;
- and
- pumping the blood between the intake and exhaust conduits using a continuous axial-flow pump having at least one stage comprising an outer casing and rotor assembly mounted in the case, the rotor assembly comprising at least two rotors rotating in opposite directions, the rotors being independently driven.
1 more element
A method of pumping blood comprising the steps of:
- providing intake and exhaust conduits;
- providing blood;
- and
- pumping the blood between the intake and exhaust conduits using a continuous axial-flow pump having at least one stage comprising an outer casing and rotor assembly mounted in the casing, the rotor assembly comprising at least two rotors rotating in opposite directions and in compliance with the following formula:
- g · H 2 η 2 · ω 2 = - g · H 1 η 1 · ω 1 .
2 more elements
Dependencies are inferred from the claim text.