Pumps – Motor driven – Electric or magnetic motor
Patent
1998-07-27
2000-03-28
Capossela, Ronald
Pumps
Motor driven
Electric or magnetic motor
600 16, 623 3, F04G 1700
Patent
active
060423471
ABSTRACT:
An implantable electric pump for assisting blood flow in a patient in need thereof comprises a non-rotating pump housing and an electric motor enclosed within the housing, all motor components being disposed within the housing in a manner that does not substantially block blood flow through the central axial flow path. The motor comprises a stator and a rotor. The stator is fixedly mounted within the housing and contains a first set of electromagnetically interactive torque-generating components. The rotor is coaxially and rotatably disposed within the stator and has a rotor vane extending outwardly from a central longitudinal axis of the rotor towards the stator, and a second set of electromagnetically interacting torque-generating components disposed on the vane for rotation therewithin. The second set interacts with the first set to cause rotation of the rotor relative to the stator when a rotating electrical current is passed through the first set. The rotor vane has a configuration, height, and angled orientation which impart pumping force to blood within the central axial flow path when the rotor is rotated.
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Snaper Alvin A.
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