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US 2026/0232989 A1Published application
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.
Claims21
(canceled)
A pump unit for a cardiac support system, the pump unit comprising:
- an electric motor comprising a shaft;
- an impeller configured to convey blood of a patient;
- and
- a magnetic coupling device configured to couple the electric motor to the impeller 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 the second magnetic body is coupled to the impeller so that rotation of the rotor drives rotation of the impeller,
- wherein a first subset of the second plurality of shell elements are magnetized in opposing directions to form at least four magnetic poles,
- wherein the first magnetic body is positioned concentrically inside the second magnetic body.
7 more elements
Dependencies are inferred from the claim text.