Blood purifier

A blood purification and blood technology, applied in blood circulation treatment, suction equipment, dialysis system, etc., can solve problems such as large coupling force and decreased operating comfort

Inactive Publication Date: 2015-12-02
JAFRON BIOMEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, in the prior art, in order to ensure the tightness of the blood purification device, the coupling force between the cap and the end cap is too large, so that the medical staff cannot open the cap before using the blood purification device, thereby reducing the operating comfort of the product.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] like Figure 1a and Figure 1bAs shown, the blood purification device in this embodiment can be a blood purification device containing adsorbents such as a disposable hemoperfusion device, a disposable plasma bilirubin adsorber, a disposable endotoxin adsorber, and a DNA immunosorbent device. device. The blood purification device in this embodiment is a disposable hemoperfusion device, which includes a cylinder body 18 and filter screens 14 located at both ends of the cylinder body 18, and there is an adsorbent accommodation chamber 20 between the filter screens 14 at both end sides. The adsorbent containing cavity 20 can accommodate various types of adsorbents according to different therapeutic purposes, such as natural polymer carrier adsorbents, activated carbon adsorbents, resin adsorbents, and the like. The filter screen 14 is located at both ends of the cylinder body 18, which means it is located near the end of the cylinder body 18, either inside or outside the ...

Embodiment 2

[0063] Such as Figure 11 to Figure 14 As shown, the blood purification device of this embodiment is a DNA immunoadsorber, and the filter screens 14 at both ends of the cylinder are connected by a support rod 19, and the filter screen 14 is fixed on the limiting platforms 132 and 187, and the filter screen 14 is also Including the grid frame 142 and the mesh 141, the diameter of the effective filtering area of ​​the mesh 141 is 15 mm. Wherein, the inner wall of spacer platform 132 and 187 is a smooth surface, and the outer wall 147 of the grid frame 142 of filter screen 14 is also a smooth surface, and the outer wall of grid frame 142 and the inner cavity wall of spacer platform 132 and 187 fit closely , the axial inner end surface of the grid frame 142 is provided with a support groove 149, and the ends of the support rod 19 are plugged with the support grooves 149 on the grid frame 142 of the filter screen 14 at both ends of the DNA immunoadsorption column, so that the filte...

Embodiment 3

[0065] The structure of the hemoperfusion device in this embodiment is basically the same as that in Embodiment 1, the difference is that the ratio of the axial length of the adsorbent chamber to its maximum diameter in this embodiment is 2.5, and the taper of the end cap is 45°. There are internal threads on the cavity wall of the filter screen installation position, and external threads are provided on the filter screen frame. The filter screen and the filter screen installation position are fixed by thread coupling. The diameter of the effective filter area of ​​the filter screen is 6mm. .

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Abstract

The invention discloses a blood purifier, which comprises a cylindrical shell and filter screens at two end sides of the cylindrical shell; an adsorbent accommodating chamber is set between the filter screens at two end sides; and the ratio of the axial length of the adsorbent accommodating chamber and the maximum diameter is 2.5-4.0. By adopting the adsorbent accommodating chamber in the radio of the length and the diameter, the blood purifier is more accord with the characteristics of blood flowing; phenomenon like blind angle and eddy current can be prevented; the blood can pass through the blood purifier in a short time; and the risk of blood clotting during blood perfusion can be reduced. The cylindrical shell is made integrated preferably; the blood inlet end employs a trumpet-shaped guiding part; the bubble in a perfusion device can be exhausted rapidly at a pre-punching; the exhaust time can be shortened; and the pre-punching operation can be simplified.

Description

technical field [0001] The invention relates to the field of blood purification consumables, in particular to a blood purification device. Background technique [0002] With the progress and development of hemoperfusion technology, its scope of application is becoming wider and wider, and its treatment scope has involved many fields such as drug poisoning, uremia, kidney disease, and immune system disease. With the improvement of people's living standards and the increase of health awareness, hemoperfusion has been widely accepted as a disease treatment method, and the annual usage is increasing. [0003] As a medical device dedicated to blood purification, the blood purification device has a built-in adsorbent for purifying blood. During clinical use, the blood purification device is connected in series with the extracorporeal blood circulation circuit. When the blood passes through the blood purification device, the adsorbent in it absorbs the pathogenic substances in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/38A61M1/14
CPCA61M1/38A61M1/14A61M1/3621A61M1/3627A61M1/3672A61M1/3687
Inventor 董凡吴宏武毕大武巫蔡泉房玉庆叶超林
Owner JAFRON BIOMEDICAL
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