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US 12,678,613 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.
Claims19
A blood pump, comprising:
- a pump housing having a proximal end, a distal end, a region of the proximal end, and a region of the distal end;
- a driveshaft arranged in an interior of the pump housing along a longitudinal axis;
- and
- a conveying element arranged on the driveshaft,
- wherein the pump housing comprises a pump-receiving portion and a proximal portion arranged proximally of the pump-receiving portion, and the pump housing is transferrable in a radial direction extending transversely to the longitudinal axis from a compressed state into an expanded state,
- wherein the driveshaft is rotatably held in a proximal bearing, the proximal bearing located in the region of the proximal end of the pump housing,
- wherein the driveshaft is configured such that a bending resistance of a portion of the driveshaft in a region of the proximal portion of the pump housing and distal of the proximal bearing is coordinated with a bending resistance of the proximal portion of the pump housing, such that when the pump housing bends, the conveying element is arranged substantially concentrically within the pump-receiving portion, and
- wherein the bending resistance of the proximal portion of the pump housing is less than a bending resistance of the pump-receiving portion of the pump housing.
5 more elements
A blood pump, comprising:
- a pump housing having a proximal end, a distal end, a region of the proximal end, and a region of the distal end;
- a driveshaft arranged in an interior of the pump housing along a longitudinal axis;
- and
- a conveying element arranged on the driveshaft,
- wherein the pump housing comprises a pump-receiving portion and a proximal portion arranged proximally of the pump-receiving portion, and the pump housing is transferrable in a radial direction extending transversely to the longitudinal axis from a compressed state into an expanded state,
- wherein the driveshaft is rotatably held in a proximal bearing, the proximal bearing located in the region of the proximal end of the pump housing,
- wherein the driveshaft is configured such that a bending resistance of a portion of the driveshaft in a region of the proximal portion of the pump housing and distal of the proximal bearing is coordinated with a bending resistance of the proximal portion of the pump housing, such that when the pump housing bends, the conveying element is arranged substantially concentrically within the pump-receiving portion, and
- wherein the bending resistance of the portion of the driveshaft in the region of the proximal portion of the pump housing is less than a bending resistance of a portion of the driveshaft in the pump-receiving portion of the pump housing.
5 more elements
Dependencies are inferred from the claim text.