Pump arrangement
AssigneeEcp Entwicklungsgesellschaft Mbh
InventorReiner Liebing
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Abstract
The subject matter of the present invention is a pump arrangement, in particular for use in the body's own vessels, having a pump and a sheath receiving the pump, bounding a flow passage and having a distal intake opening and a proximal outflow opening for producing a driving flow by means of the pump, wherein the pump is arranged in a first fluid-tight section having the distal intake opening and a second fluid-tight section includes the proximal outflow opening. In accordance with the invention, a further inlet opening is present between the first section, and the second section and is arranged between the intake opening and the outflow opening, with the first section and the second section being arranged with respect to one another such that the inlet opening opens into the flow proximal to the pump.
Claims13
A pump arrangement, comprising:
- a compressible rotor configured for use within a blood vessel;
- a sheath receiving the compressible rotor, the sheath bounding a flow passage and having a distal intake opening and a proximal outflow opening, the sheath comprising a first fluid-tight section including the distal intake opening and a second fluid-tight section including the proximal outflow opening, the compressible rotor being arranged in the first fluid-tight section, the second fluid-tight section enclosing at least a portion of the first fluid-tight section;
- and an inlet opening disposed between the first fluid-tight section and the second fluid-tight section, the first fluid-tight section and the second fluid-tight section being arranged such that the inlet opening opens into the flow passage proximal to the compressible rotor.
Dependencies are inferred from the claim text.