Blood pump and power transmission assembly thereof

A technology of power transmission and components, applied in the direction of blood pumps, blood pumps, hypodermic injection devices, etc., can solve problems such as impact, adverse health of patients, failure of contact dynamic seals, etc., to reduce the impact of wear, improve structural reliability, extend The effect of service life

Inactive Publication Date: 2021-05-14
MAGASSIST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The disadvantage of the existing technology is that a large amount of perfusion liquid entering the patient's body will bring adverse health effects to the patient, because some wear particles may be mixed in the perfusion liquid; in addition, the contact dynamic seal will fail due to long-term wear

Method used

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  • Blood pump and power transmission assembly thereof
  • Blood pump and power transmission assembly thereof
  • Blood pump and power transmission assembly thereof

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Embodiment Construction

[0054] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0055] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may be another element in between. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or it may be present interveni...

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Abstract

The invention discloses a blood pump and a power transmission assembly thereof, and the power transmission assembly of the blood pump comprises: a flexible shaft used for driving an impeller of the blood pump to rotate, wherein the flexible shaft is provided with a near end for inputting power and a far end for arranging the impeller; a first flow channel which is used for filling fluid to flow, wherein the first flow channel is provided with an output end adjacent to the near end and used for outputting perfusion fluid and an input end adjacent to the far end and used for inputting perfusion fluid. According to the blood pump and the power transmission assembly thereof, the risk caused when perfusion liquid enters the body of a patient can be reduced.

Description

technical field [0001] The present invention relates to the field of medical devices, in particular to a power transmission assembly of a catheter pump for cardiac assistance, and more particularly to a blood pump and its power transmission assembly. Background technique [0002] The existing known catheter pumps are divided into two categories: one is the built-in motor type, the motor is connected to the shaft to directly drive the impeller, and the motor enters the human body together with the catheter; the other is the external motor type, which drives the impeller through a flexible shaft. The motor does not enter the human body along with the catheter and the impeller. [0003] The flexible shaft of the external motor type is arranged in the inner cavity of the catheter, and is guided and limited by the catheter. In order to reduce the wear between the flexible shaft and the inner cavity of the catheter, reduce the vibration caused by the high-speed rotation of the fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M60/216A61M60/403A61M60/802A61M60/804
Inventor 张家良托马斯·乔治·罗根徐嘉颢徐博翎颜翊凡
Owner MAGASSIST CO LTD
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