Blood pump

A blood pump and blood technology, applied in the field of blood pumps, can solve problems such as blood cell rupture, meet the requirements of small space, and improve the effect of rotor dynamics

Inactive Publication Date: 2018-09-11
BERLIN HEART GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another difficulty is the risk of blood cell rupture (hemolysis) due to the narrowing and abrupt changes in direction of the blood flow through the blood pump, especially at the mechanical bearings of the impeller, due to the large pressure gradients within the blood pump

Method used

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Embodiment Construction

[0071] Figure 1A A schematic illustration of a longitudinal section through a blood pump 1 of the type proposed here is shown schematically in . The blood pump 1 comprises a hollow body 2 (indicated by a continuous thick line) in which an impeller 3 is provided with a blade arrangement 4 . Furthermore, the hollow body 2 comprises an inlet 5 for blood flow in an inflow direction parallel to the axis of rotation R (shown in dashed lines), and an outlet 6 for blood flow in an outflow direction extending perpendicular to the cross-section. Thus, in this embodiment, the outlet is arranged offset at a right angle with respect to the axis of rotation R for forming a non-zero outflow angle α (α equal to 90°) between the inflow direction and the outflow direction.

[0072] The outlet 6 of the hollow body 2 is arranged between the upstream side 9 of the impeller 3 facing the inlet and the downstream side 10 facing away from the inlet. The inner diameter of the hollow body 2 is used t...

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Abstract

The invention relates to a blood pump (1). The blood pump comprises a hollow body (2) and magnetic bearing devices (15, 15', 16, 16', 17, 17', 18, 18'), all of which at least partially and actively stabilize. The hollow body is equipped with an impeller (3) having a blade device (4), which is used for generating axial propulsion of blood along the impeller (3). The impeller is set to rotate arounda rotary axis (R) of the impeller (3) by means of a motor stator (10). The hollow body (2) comprises an inlet (5) and an outlet (6). The inlet enables blood to flow into the hollow body (2) in an inflow direction (E) basically parallel to the rotary axis (R). The outlet (6) enables blood to flow out of the hollow body (2) along an outflow direction (A).

Description

[0001] This application is a divisional application of an invention patent application with an application date of May 5, 2011, an application number of 201180072015.3 (international application number: PCT / EP2011 / 002384) and an invention title of "blood pump". technical field [0002] The invention relates to the technical field of blood pumps. Background technique [0003] A blood pump mentioned here and below is to be understood as a pump for supporting or generating blood flow in the human or animal body and suitable for implantation in the thoracic cavity of the human or animal, located outside the heart. With a left ventricular assist device (LVAD), connections are made between the left half of the heart and the inlet of the blood pump, and between the outlet of the blood pump and the aorta, which exits the heart, to support or generate circulation of blood through the body (systemic circulation ). Utilizing a right ventricular assist device (RVAD), a connection is ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/12A61M60/178A61M60/242A61M60/422A61M60/538A61M60/806A61M60/814A61M60/822A61M60/824
CPCA61M60/824A61M60/148A61M60/806A61M60/814A61M60/822A61M60/242A61M60/178A61M60/538A61M60/422A61M60/196A61M60/812A61M60/816
Inventor H-E·彼得斯J·穆勒K·杰拉琛P·努瑟尔M·高勒内尔A·阿恩特L·霍布
Owner BERLIN HEART GMBH
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