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US 12,589,238 B2Granted
Rotor, magnetic coupling device, electric motor for a cardiac support system, pump unit for a cardiac support system, and method for producing a rotor
AssigneeKardion GmbH
InventorUwe Vollmer
Life of this patent
Estimating the term…
Abstract
A rotor for a cardiac support system is disclosed. The rotor is assembled or can be assembled from at least four shell elements to form a hollow cylinder and/or on a shaft, wherein the shell elements are magnetized or can be magnetized alternately in magnetization direction which are oppositely directed or are orthogonal, so as to form a magnetized body having at least four magnetic poles.
Claims15
A pump unit for a cardiac support system, the pump unit comprising:
- an electric motor comprising a shaft;
- and
- a magnetic coupling device comprising:
- a rotor comprising a first magnetic body disposed on the shaft, the first magnetic body comprising a first plurality of shell elements, wherein a first subset of the first plurality of shell elements are magnetized in radially opposite magnetization directions, and the first magnetic body comprising at least four magnetic poles;
- and
- a second magnetic body comprising a second plurality of shell elements, wherein a first subset of the second plurality of shell elements are magnetized in opposing directions to form at least four magnetic poles,
- wherein a second subset of the second plurality of shell elements are magnetized in directions tangential to an outer surface of the second magnetic body;
- and
- when assembled, each shell element of the second subset of the second plurality of shell elements is positioned between two adjacent shell elements of the first subset of the second plurality of shell elements;
- and
- wherein the first magnetic body is positioned concentrically inside the second magnetic body.
8 more elements
Dependencies are inferred from the claim text.