Fluid pump changeable in diameter, in particular for medical application
AssigneeEcp Entwicklungsgesellschaft Mbh
InventorReiner Liebing
Life of this patent
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Abstract
The invention relates to a fluid pump device, in particular for the medical application, with a compressible pump housing and rotor, as well as with an actuation means which runs in the sleeve and on whose end the fluid pump is arranged. In order to utilize all possibilities of a space-saving arrangement of the respective pump housing of the rotor, which is compressible per se, and as the case may be, a bearing arrangement, the mentioned elements are displaceable to one another in the axial direction compared to an operation position. In particular these elements may be end-configured by way of an axial movement of the drive shaft after the assembly.
Claims20
An intravascular fluid pump device comprising:
- a pump housing having an open distal inflow end, the pump housing being expandable into an expanded state and compressible into a compressed state;
- a drive shaft having a proximal drive side end and a distal portion;
- and
- a radially compressible rotor coupled to the distal portion of the drive shaft,
- wherein each of the radially compressible rotor and the drive shaft are laterally displaceable at least relative to the pump housing from a first position to a second position, and
- wherein, in the first position, the radially compressible rotor is at least partially disposed exterior to the pump housing, and, in the second position, the radially compressible rotor is disposed within the pump housing.
Dependencies are inferred from the claim text.