Pumping device, disposable device and method for operating pumping device
A pumping device, disposable technology, applied in the direction of components of pumping devices for elastic fluids, pumping devices, electromechanical devices, etc.
Pending Publication Date: 2021-08-31
莱维特朗尼克斯有限责任公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0012] When using centrifugal pumps for the transfer of sensitive substances such as blood or other biological fluids, the problem arises of the interaction between the blades of the rotor and the fluid to be transferred
Method used
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[0054] In the following description of the present invention based on the embodiments, examples and variations thereof, the same components or functionally equivalent components are designated by the same reference symbols throughout. It is understood that explanations regarding an example of an embodiment or a specific embodiment or a specific variant also apply to other embodiments, examples and variants thereof in the same way or in a similarly identical way. This means that only the differences from the above-described embodiments, examples or variants thereof will be discussed in more detail.
[0055] figure 1 A first embodiment of the pumping device according to the invention is shown in a schematic cross-sectional illustration, which is indicated as a whole by the reference symbol 1 . For better understanding, figure 2 Still shown is a schematic sectional illustration of a first embodiment of the pumping device 1 according to the invention, wherein the section is alo...
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The present invention provides a pumping device for transmitting liquid. The pumping device includes a single-use device and a reusable device. The single-use device is to be inserted into the reusable device and includes two pump units in series, one behind the other. Each pump unit includes a rotor for a bearingless motor, and can be magnetically levitated and driven without contact for rotation about an axial direction. The reusable device includes a stator for each rotor which form an electromagnetic rotary drive for rotating the rotor about the axial direction. Each stator is a bearing and drive stator with which the rotor can be magnetically driven and levitated without contact with respect to the stator. An independent control device is provided for each stator, and can independently activate a respective stator.
Description
technical field [0001] The present invention relates to pumping devices for conveying fluids, to single-use devices for such pumping devices, and to methods for operating pumping devices. Background technique [0002] In biotechnological or medical technology applications, pumps are often required via which very sensitive substances, such as blood or cell cultures or proteins, can be conveyed, whereby it is very important that these substances be damaged as little as possible by the pump. For this purpose, peristaltic pumps are known on the one hand and centrifugal pumps on the other hand, in which a rotating rotor (impeller) with blades acts on the fluid to be conveyed. [0003] Centrifugal pumps are known which comprise an electromagnetic rotary drive designed and operated according to the principle of a bearingless motor. In this context, the term "bearingless motor" refers to an electromagnetic rotary drive in which the rotor is completely magnetically suspended relativ...
Claims
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IPC IPC(8): A61M60/216A61M60/422A61M60/804A61M60/806A61M60/81A61M60/113A61M60/232A61M60/37A61M60/38F04D13/06F04D13/14F04D15/00F04D29/42
CPCF04D13/06F04D13/14F04D29/426F04D15/0072F04D15/0066F04D13/0666F04D29/048H02K7/09A61M2205/17F04D29/628F04D13/0606H02K7/14H02K1/276H02K5/128H02K2213/03H02K11/20H02K5/02H02K11/33H02K2211/03F16C32/0497F16C41/008A61M60/422A61M60/113A61M60/226A61M60/232A61M60/538A61M60/38A61M60/849A61M60/845F04D13/0626F04D13/064F04D13/0686F04D13/024F04D13/027F04D29/186F04D1/06
Inventor R·舍布N·巴列塔
Owner 莱维特朗尼克斯有限责任公司