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Oxygenator, oxygenator hollow fiber membrane woven assembly and forming method of oxygenator hollow fiber membrane woven assembly

A molding method and fiber membrane technology, applied in the field of oxygenator, can solve the problems of low design requirements, unsmooth blood flow, easy formation of dead ends, etc., and achieve the effects of good diversion, shortening the blood flow path, and increasing the contact area.

Pending Publication Date: 2021-05-11
DONGGUAN KEWEI MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relatively speaking, in the cube-shaped oxygenator, the hollow fiber membranes are stacked, and the surface area of ​​each layer of hollow fiber membranes is the same. Blood can traverse the hollow fiber membranes to achieve oxygenation and temperature changes. The transmembrane The pressure difference is relatively small, and the design requirements are relatively low, but the blood flow at the four corners of the cube-shaped oxygenator and the positions adjacent to the corners is not smooth, and it is easy to form dead ends.

Method used

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  • Oxygenator, oxygenator hollow fiber membrane woven assembly and forming method of oxygenator hollow fiber membrane woven assembly
  • Oxygenator, oxygenator hollow fiber membrane woven assembly and forming method of oxygenator hollow fiber membrane woven assembly
  • Oxygenator, oxygenator hollow fiber membrane woven assembly and forming method of oxygenator hollow fiber membrane woven assembly

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Embodiment 1

[0045] refer to Figure 1 to Figure 4 , figure 1 It is a schematic structural view of the hollow fiber membrane braided assembly of the oxygenator of the embodiment, figure 2 It is a structural schematic diagram of another perspective of the hollow fiber membrane braided assembly of the oxygenator of the embodiment, image 3 For example figure 2 Sectional view of A-A plane, Figure 4 It is a schematic diagram of the structure of the hollow fiber membrane part of the embodiment. The braided hollow fiber membrane assembly of the oxygenator in this embodiment includes a hollow fiber membrane part 1 and a sealing part 2 . The hollow fiber membrane part 1 includes a plurality of hollow fiber units 11, and the plurality of hollow fiber units 11 are stacked in sequence; the sealing part 2 is sealed on the outer edge of the stacked hollow fiber units 11; the cross section of the inner ring of the sealing part 2 It is elliptical, so that a plurality of hollow fiber units 11 arra...

Embodiment 2

[0059] refer to Figure 7 , Figure 7 It is a flow chart of the forming method of the hollow fiber membrane braided module of the oxygenator in the embodiment. The method for forming the braided hollow fiber membrane assembly of the oxygenator in this embodiment includes the following steps:

[0060] S1, weaving a plurality of hollow fiber units 11 in sequence, and making the plurality of hollow fiber units 11 stacked in sequence.

[0061] S2, centrifugally pouring glue on the outer edges of multiple hollow fiber units 11 stacked to form the sealing part 2; Cooperate to form a blood flow channel with an elliptical or circular cross section.

[0062] S3, cutting the outer edge of the sealing portion 2 to leak out the hollow fiber unit 11 .

[0063] By sequentially weaving a plurality of hollow fiber units 11, the plurality of hollow fiber units 11 are sequentially stacked, and then the outer edges of the stacked hollow fiber units 11 are centrifugally filled with glue to fo...

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Abstract

The present invention discloses an oxygenator hollow fiber membrane weaving assembly. The oxygenator hollow fiber membrane weaving assembly comprises a hollow fiber membrane part and a glue sealing part; the hollow fiber membrane part comprises a plurality of hollow fiber units, and the plurality of hollow fiber units are sequentially stacked; the glue sealing part is used for sealing the outer edges of the plurality of hollow fiber units which are arranged in a stacked manner; and the section of the inner ring of the glue sealing part is elliptical, so that the plurality of stacked hollow fiber units are matched to form a blood flow channel with an elliptical cross section. The invention further discloses a forming method of the hollow fiber membrane woven assembly of the oxygenator and the oxygenator. Through cooperation of the glue sealing part and the multiple stacked hollow fiber units, the formed blood flow channel with the elliptical cross section is free of dead corners, and blood flows smoothly.

Description

technical field [0001] The invention relates to the technical field of oxygenators, in particular to an oxygenator, an oxygenator hollow fiber membrane braided component and a forming method thereof. Background technique [0002] Hollow fibers are widely used in oxygenators to participate in the oxygenation and temperature-changing functions of the oxygenator. When the hollow fiber is used for oxygenation function, the blood realizes the exchange of oxygen and carbon dioxide during the diffusion process of the hollow fiber membrane, so that the blood absorbs oxygen and discharges carbon dioxide; when the hollow fiber is used for the temperature changing function, the hollow fiber is pre-filled with variable temperature water The blood transfers heat during the diffusion process of the hollow fiber membrane, so that the temperature of the blood is raised or lowered. Existing oxygenators are distinguished in shape, and there are cylindrical oxygenators and cubic oxygenators. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/18B01D63/02
CPCA61M1/1621A61M1/1623A61M1/1698B01D63/022
Inventor 胡吉龙刘泽成袁栋平张换梅
Owner DONGGUAN KEWEI MEDICAL INSTR
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