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US 12,674,466 B2Granted
Intravascular fluid pump having a longitudinally elastically stretchable rotor
AssigneeEcp Entwicklungsgesellschaft Mbh
InventorThomas Toellner
Life of this patent
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Abstract
To design the rotor as compressible in the radial direction in a fluid pump, in particular for microinvasive medical use, said rotor is configured as stretchable in its longitudinal direction by push elements and pull elements acting axially on it.
Claims20
An intravascular fluid pump comprising:
- a rotor that is rotatable about a longitudinal axis,
- wherein the rotor is at least partially formed from an elastically compressible and expandable material,
- wherein the rotor is elastically stretchable along the longitudinal axis from a non-stretched state to a stretched state,
- wherein the rotor comprises at least one impeller blade that is longitudinally stretched when the rotor is longitudinally stretched,
- wherein the at least one impeller blade has a reinforcement structure that is kinked when the rotor is in the non-stretched state and is longitudinally stretched when the rotor is longitudinally stretched such that the reinforcement structure is not kinked when the rotor is in the stretched state.
2 more elements
Dependencies are inferred from the claim text.