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Tubular shaft type centrifugal oxygenation blood pump

A tube-shaft type and tube-shaft technology, applied in medical science, prosthesis, etc., can solve problems such as complexity and patient impact, and achieve the effects of reducing damage, portability, and high efficiency

Inactive Publication Date: 2013-04-03
杨爱民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the commonly used oxygenators are generally used for less than 6 hours, and the oxygenation function gradually decreases during long-term extracorporeal circulation, and even the oxygenator needs to be replaced, and the operation of replacing the oxygenator is complicated, and the extracorporeal circulation needs to be stopped. have varying degrees of impact on patients

Method used

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  • Tubular shaft type centrifugal oxygenation blood pump
  • Tubular shaft type centrifugal oxygenation blood pump
  • Tubular shaft type centrifugal oxygenation blood pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1 In order to place the motor (6) in the pump casing (1), the pump is designed to be vertical, and the liquid storage chamber (7) is located in the center of the pump casing. The straight pipe part of the pipe shaft (3) passes through the bearing (4) and seal (5) on the top of the liquid storage chamber and opens into the liquid storage chamber, and the end of the side pipe (12) of the pipe shaft is provided with an anti-backflow buffer part (8), The oxygenated sheet, that is, the oxygenated part (13) is smoothly connected with the anti-reflux buffer part, or is integrally formed with the anti-reflux buffer part, which is a continuation of the anti-reflux buffer part. The side tube of the tube shaft and the anti-reflux buffer part are the channels for the liquid to enter the pump, and the seal separates the liquid storage chamber from the pump casing. The motor (6) is fixed at the center of the pump cover (2), and the motor shaft is coaxial with the straight ...

Embodiment 2

[0012] Embodiment 2 The difference from Embodiment 1 is that the motor is not located inside the pump casing, but is located outside the pump casing, and is fixed in the center of the pump cover. The motor shaft passes through the center of the pump cover and is connected to the pipe shaft. The gas also needs a sealing cover to seal the motor on the pump cover. Other structures are the same as in Embodiment 1.

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Abstract

The invention discloses a tubular shaft type centrifugal oxygenation blood pump. A tubular shaft type centrifugal oxygenation blood pump body is taken as a basic structure, a power unit driving liquid to flow of the blood pump is a T-shaped tubular shaft capable of rotating at high speed, blood flows into a pump shell via the tubular shaft and gains kinetic energy on a side tube portion of the tubular shaft under the action of centrifugal force, and back-flow preventing buffer portions are arranged at tail end outlets of a side tube of the tubular shaft of the blood pump. On the basis of above structure, oxygenation slices namely oxygenation portions are continuously connected on every back-flow preventing buffer portion of the blood pump, and the oxygenation blood pump is formed by additionally arranging an air exchange system on the upper portion of the pump shell. The oxygenation blood pump has a blood driving function, also has a blood and air exchanging function, and does not require an additional oxygenator and an artificial heart-lung machine when being used for extracorporeal circulation, extracorporeal membrane oxygenation.

Description

technical field [0001] The invention is a medical centrifugal oxygenation blood pump, which has two functions of blood driving and oxygenation at the same time. Respiratory support can also be used for circulatory support, and it can also be used for emergency resuscitation of patients with respiratory and cardiac arrest. Background technique [0002] At present, there are mainly two types of blood pumps used in extracorporeal circulation for open heart surgery at home and abroad, one is a rolling blood pump, and the other is a centrifugal blood pump. Both blood pumps only have blood driving function, but no oxygenation or gas exchange function. When used in extracorporeal circulation, auxiliary circulation and extracorporeal membrane oxygenation, they must be used in conjunction with an oxygenator. Moreover, the commonly used oxygenators are generally used for less than 6 hours, and the oxygenation function gradually decreases during long-term extracorporeal circulation, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/10
Inventor 杨爱民辛国华李汝泓李艳
Owner 杨爱民
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