Centrifugal magnetic suspension blood pump with high hydraulic property

A magnetic levitation and high hydraulic technology, applied in the field of medical devices, can solve the problem of low blood compatibility, achieve the effect of increasing the acting surface, reducing the size of the gap, and improving the hemohydraulic performance

Active Publication Date: 2022-06-28
MAGASSIST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most cardiopulmonary bypass machines use peristaltic pumps that are bulky and have low hemocompatibility

Method used

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  • Centrifugal magnetic suspension blood pump with high hydraulic property
  • Centrifugal magnetic suspension blood pump with high hydraulic property
  • Centrifugal magnetic suspension blood pump with high hydraulic property

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Experimental program
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Embodiment Construction

[0034] The terms "upper", "lower", "high", "low", "top" and "bottom" as used in this disclosure refer to the Image 6 The orientation definition in the state shown, "left" and "right" are facing Image 6 state is defined. Taking the rotation axis MN of the impeller as a reference, the edge of the blade (main blade / split blade) close to the rotation axis MN is the leading edge, the edge away from the rotation axis MN is the trailing edge, and the blade (main blade / split blade) is adjacent to the rotation axis MN. One end is the inner end, and the end away from the rotation axis MN is the outer end.

[0035] see image 3 , the centrifugal magnetic suspension blood pump with high hydraulic performance in this embodiment includes a motor 112 and a pump head 101 detachably engaged with the motor 112 . The operative engagement between the pump head 101 and the motor 112 may adopt or conform to the prior art or technical features described in the publication numbers CN209187707U, ...

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Abstract

The invention discloses a centrifugal magnetic suspension blood pump with high hydraulic performance. The centrifugal magnetic suspension blood pump comprises a motor and a pump head detachably connected with the motor. The pump head comprises a pump shell with a blood inlet connector and a blood outlet connector, and an impeller contained in the pump shell. The impeller may be suspended within the pump housing and driven by the motor to rotate about an axis of rotation to pump blood from the blood inlet connector to the blood outlet connector. The impeller comprises an impeller shell and blades arranged on the impeller shell, the blades comprise main blades and splitter blades which are distributed in a staggered mode in the circumferential direction, the radial length of the main blades is larger than that of the splitter blades, the outer normal circles of the main blades coincide with the outer normal circles of the splitter blades, and the diameter of the inner normal circles of the main blades is smaller than that of the inner normal circles of the splitter blades.

Description

technical field [0001] The present disclosure generally relates to the field of medical devices, and in particular, to a centrifugal magnetic levitation blood pump with high hydraulic performance. Background technique [0002] Blood pumps are divided into implantable, extracorporeal and interventional types, among which centrifugal pump technology is mostly used for implantable and extracorporeal blood pumps. After the evolution of three generations of technology, the third-generation magnetic levitation blood pump is recognized as the pump with the best blood compatibility. The magnetic levitation blood pump uses the magnetic levitation system to suspend the impeller in the pump in the pump casing to avoid the destruction of blood cells caused by the friction of the mechanical bearing, so as to obtain better blood compatibility. The design of a blood pump is usually a balance between hemocompatibility and hydraulic performance, and the factors affecting hemocompatibility a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M60/122A61M60/232A61M60/422A61M60/812A61M60/855
CPCA61M60/122A61M60/232A61M60/422A61M60/812A61M60/855
Inventor 萨沙·格罗斯哈特颜翊凡徐博翎吴婷婷
Owner MAGASSIST CO LTD
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