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US 10,478,540 B2Granted
Pump, in particular a blood pump
AssigneeEcp Entwicklungsgesellschaft Mbh
InventorsMario Scheckel, Robert Decke
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Abstract
The present invention relates to a pump, in particular a blood pump having a proximal and a distal end and a pump housing arranged therebetween, a driveshaft arranged in an interior of the pump housing along the longitudinal direction, a conveying element arranged on the driveshaft, and a cannula. Here, the pump housing, the shaft arrangement and the conveying element are coordinated with one another in such a way that these guarantee the best possible efficiency and longevity of the pump.
Claims14
A pump, in particular a blood pump, comprising
- a proximal and a distal end and a pump housing arranged therebetween,
- a driveshaft arranged in an interior of the pump housing along a longitudinal direction,
- a conveying element arranged on the driveshaft, and
- a cannula,
- wherein the pump housing is formed in such a way that the pump housing can be transferred at least in part into the cannula under application of a force acting at the proximal end of the pump, and in doing so is transferred at least along a radial direction extending transversely to the longitudinal direction from an expandable state into a compressed state;
- and wherein the pump housing also has at least one portion which in the expanded state comprises structures extending along the longitudinal axis helically around the longitudinal axis and wound in a first direction as considered from the proximal to the distal end of the pump;
- and
- wherein the conveying element comprises at least one foldable segment, wherein the structures extending helically are formed in such a way that a torque directed against the first direction acts on the at least one foldable segment causing it to collapse.
5 more elements
Dependencies are inferred from the claim text.