Patent ID: 9726195
Date: 2017-08-08
CPC Classifications: A61M,F04D

Claim:
1. An axial flow blood pump, comprising: a hollow housing defining a housing inlet, a housing outlet and a housing axial axis extending therebetween; a rotor mounted in the housing so as to be rotatable about the housing axial axis, the rotor including at least two rotor blades, a first rotor blade from the at least two rotor blades having a first configuration and a second rotor blade from the at least two rotor blades having a second configuration; and an actuator operatively coupled to the housing and to the rotor to selectively rotate the rotor in the housing about the housing axial axis; wherein the first and second configurations differ from each other; wherein the first and second rotor blades are coiled around the housing axial axis, the first rotor blade defining first blade inlet and outlet ends respectively receiving and releasing blood when the rotor is operated in a patient and the second rotor blade defining second blade inlet and outlet ends respectively receiving and releasing blood when the rotor is operated in a patient; and wherein the rotor is a hollow rotor including a rotor body at the periphery thereof delimiting a rotor passageway extending axially therealong, the rotor body defining a body internal surface delimiting the rotor passageway, the first and second blades extending from the body internal surface circumferentially spaced apart from each other.