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Hollow fiber membrane oxygenator

A fibrous membrane and oxygenator technology, applied in the field of medical devices, can solve the problem of low blood gas exchange rate, and achieve the effect of extending the blood flow path, avoiding damage, and improving the blood gas exchange rate

Pending Publication Date: 2020-11-03
北京清瀚医疗科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing hollow fiber membrane oxygenator has the problem of low blood gas exchange rate.

Method used

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  • Hollow fiber membrane oxygenator

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides a hollow fiber membrane oxygenator, preferably a membrane type hollow fiber membrane oxygenator, the hollow fiber membrane oxygenator can improve the blood gas exchange rate, and at the same time, it can avoid the formation of blood formed components. damage.

[0038] Such as figure 1 with figure 2 As shown, the hollow fiber membrane oxygenator of this embodiment includes a housing 1, a plurality of drainage plates 2 and a plurality of fiber bundle groups all arranged in the housing 1, wherein:

[0039] Above-mentioned casing 1 along horizontal direction (namely figure 1 A blood inlet 11 and a blood outlet 12 are respectively provided on both sides of the shown left and right directions). Blood can enter the housing 1 through the blood inlet 11 and flow out through the blood outlet 12 . In the vertical direction of the shell 1 (ie figure 1 The gas inlet 13 and the gas outlet 14 are respectively provided on both sides of the upper and lower ...

Embodiment 2

[0054] The difference between the hollow fiber membrane oxygenator provided in this embodiment and the first embodiment is that the heat exchanger 5 of this embodiment is integrated in the casing 1, which makes the integration degree of the hollow fiber membrane oxygenator even higher. taller and smaller.

[0055] Such as Figure 9 with Figure 10 As shown, the housing 1 of the hollow fiber membrane oxygenator is provided with a heat exchanger 5, the heat exchanger 5 includes a plurality of heat exchange tubes 53 arranged horizontally, and the tube walls of the plurality of heat exchange tubes 53 and The direction of blood circulation is vertical, and the form of the plurality of heat exchange tubes 53 can increase the heat exchange area of ​​blood and improve the heat exchange effect of blood.

[0056] In this embodiment, a heat exchange installation hole 1a is opened in the casing 1, and the heat exchange installation hole 1a is used for installing the heat exchange tube 5...

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Abstract

The invention belongs to the field of medical apparatus, and discloses a hollow fiber membrane oxygenator. The hollow fiber membrane oxygenator comprises a shell, a plurality of drainage plates and aplurality of fiber bundle groups, wherein the shell is provided with a blood inlet and a blood outlet in the horizontal direction and provided with a gas inlet and a gas outlet in the vertical direction; the drainage plates are vertically arranged in the shell in a spacing manner in the horizontal direction, and a circulation path communicating with the blood inlet and the blood outlet is formed among the drainage plates; and each fiber bundle group is arranged between every two adjacent drainage plates, comprises a plurality of vertically arranged hollow fiber bundles, and two ends of each hollow fiber bundle respectively communicate with the gas inlet and the gas outlet. Through the structure, the blood circulation direction is perpendicular to the gas circulation direction, the circulation path is formed through the drainage plates to guide blood circulation, the blood flow path is prolonged, the blood-gas exchange rate can be effectively increased, the situation that gas enters thehollow fiber bundles and does not make direct contact with blood can be guaranteed, and damage of blood visible components is avoided.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a hollow fiber membrane oxygenator. Background technique [0002] Oxygenator is the core component of extracorporeal circulation (CPB) and extracorporeal membrane oxygenation (ECMO). Blood changes from venous to arterial. In the prior art, the hollow fiber membrane oxygenator has the function of blood flowing outside the hollow fiber, which can reduce the shear force of the blood and reduce the damage of the formed components of the blood; reduce the laminar flow of blood and improve the efficiency of blood gas exchange; the oxygenation capacity is enhanced, reducing It has the advantages of reducing the contact area between blood and foreign matter and reducing the prefill volume, and is widely used. [0003] The existing hollow fiber membrane oxygenator is mainly composed of two parts, an oxygen exchange unit and a temperature exchange unit, which can better realize the transfo...

Claims

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Application Information

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IPC IPC(8): A61M1/36A61M1/18A61M1/22
CPCA61M1/3621A61M1/369A61M1/1621A61M1/1631A61M1/1698
Inventor 张向军张腾飞徐涛索轶平雒建斌
Owner 北京清瀚医疗科技有限公司
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