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Conveying blades for a compressible rotor

A technology of rotating elements and blades, used in the fields of mechanical engineering and micro-engineering

Active Publication Date: 2015-06-10
ECP ENTWICKLUNGSGMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, similar applications are also conceivable in non-medical areas utilizing larger pumps that must be used in hard-to-reach areas

Method used

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  • Conveying blades for a compressible rotor
  • Conveying blades for a compressible rotor
  • Conveying blades for a compressible rotor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] figure 1 A heart pump 1 is shown at its deployment site inside a ventricle 3 , with a rotating element 2 having delivery blades on a hub 10 and housed within a pump housing 9 . The pump housing 9 is located at the transition from the vessel 4 to the ventricle 3 . The pump is able to draw blood out of the ventricle 3 and transport it into the blood vessel 4 .

[0063] The pump 1 is arranged at the end of a hollow catheter 5, which is introduced into the patient's body or blood vessel 4 through a gate 8, and a shaft 6 is housed inside the hollow catheter 5, and the shaft 6 can be driven at high speed and Connect the hub 10 in the pump. Said shaft 6 is connected to a motor 7 located proximally on the drive side.

[0064] In order to deliver the pump 1 through the blood vessel, it may be sequentially radially retracted and then radially deployed when introduced into the ventricle 3 to achieve a correspondingly improved efficiency or desired pump performance.

[0065] ...

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PUM

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Abstract

The feed shovel (11) has struts (12,13,14) and a membrane held by the struts in expanded state. The struts have multiple joints (15,16,17) which enable bending in a movement plane in a direction and limit an overstretching of the struts over a stretching angle which is particularly 180 degree in another opposite direction within the movement plane. The joints are spaced apart from a hub of the rotor.

Description

technical field [0001] The invention relates to the field of mechanical engineering, in particular to the field of microengineering, in particular to a delivery vane for a rotating element of a fluid pump, which is particularly suitable for use in difficult-to-reach areas. [0002] Such pumps can be set up very small as micropumps in medical engineering, for example they can be introduced into blood vessels with minimal invasive force. They could then be used to assist the pumping force of the human heart. Background technique [0003] To facilitate deployment of such pumps, they are typically designed to be retractable and expandable so that they are introduced through a blood vessel in the retracted state, for example up into the ventricle and can be deployed there. [0004] For this purpose, corresponding rotating elements of the pump are provided which can be rapidly driven during operation and are radially variable, ie retractable and deployable in the transport state ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/10F04D29/18A61M60/13A61M60/174A61M60/216A61M60/414A61M60/808
CPCF04D29/181F04D29/247F04D29/607A61M60/414A61M60/148A61M60/808A61M60/174A61M60/216A61M60/13A61M60/135A61M60/205
Inventor 萨米·埃尔
Owner ECP ENTWICKLUNGSGMBH