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Adsorption type hemodialyzer

A hemodialysis and adsorption technology, applied in the field of medical devices, can solve the problems of complicated operation and long removal cycle of medium and large molecule toxins, and achieve the effect of simplifying the operation steps, reducing the volume of blood in extracorporeal circulation, and reducing the dosage.

Active Publication Date: 2019-05-17
苏州卓壹医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an adsorption hemodialyzer, which aims to solve the shortcomings of the existing hemodialysis and perfusion technology, such as the long removal cycle of medium and macromolecular toxins and the complicated operation

Method used

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  • Adsorption type hemodialyzer
  • Adsorption type hemodialyzer
  • Adsorption type hemodialyzer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] An adsorption hemodialyzer, such as figure 1 As shown, there are liquid inlet end cap 101, blood adsorption chamber 102, hemodialysis chamber 103, liquid outlet end cap 104, hollow adsorption filament 105, hollow fiber membrane 106, and sealants 112, 113, 114. Its main body is composed of a blood adsorption cavity 102 and a hemodialysis cavity 103 connected in series.

[0057] The liquid inlet end cover 101 is placed on the upper end surface of the blood adsorption cavity 102 , the end cover has a liquid replenishment port 107 , and the side of the blood adsorption cavity 102 is provided with a blood inlet port 108 .

[0058] The liquid outlet cover 104 is placed on the lower end surface of the hemodialysis cavity 103 .

[0059] The hollow adsorption filament 105 is folded into a U shape and placed in the blood adsorption cavity 102 , with the filament bundle opening facing the fluid replacement port 107 and fixed and sealed with a sealant 112 . The surface micropore ...

Embodiment 2

[0064] Such as figure 2 As shown, on the basis of Example 1, the hollow adsorption filaments in the blood adsorption chamber are replaced with solid adsorption filaments 205, and the solid adsorption filaments are fixed inside the blood adsorption chamber with the isolation net 211. After switching to solid adsorption silk, this patent no longer has the fluid replenishment function in Embodiment 1 when in use, and no fluid replenishment port is provided.

Embodiment 3

[0066] In Example 2, the solid adsorption filament 205 can be replaced with activated carbon or adsorption resin balls, the surface micropore diameter is 1nm-40nm, and the specific surface area is 300-1500m 2 / g.

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Abstract

The invention discloses an adsorption type hemodialyzer and belongs to the technical field of medical instruments. The adsorption type hemodialyzer is composed of a blood adsorption cavity, a hemodialysis cavity, a liquid inlet end cover, a liquid outlet end cover, a sealant, a hollow fiber membrane, an adsorbent and an isolation net. The main body of the device is formed by connecting the blood adsorption cavity and the hemodialysis cavity in series; the liquid inlet end cover and the liquid outlet end cover are fixed at the upper end and the lower end; the hollow fiber membrane tow is bondedinside the hemodialysis cavity through a sealant; the adsorbent is arranged in the blood adsorption cavity and is made of activated carbon, adsorption resin balls, solid adsorption wires or hollow adsorption wires; the isolation net is used for fixing the adsorbent. When the hemodialyzer is used and is additionally provided with a dialyzer and is introduced with patient blood and dialysate, harmful macromolecular substances are adsorbed by the patient blood through the blood adsorption cavity, liquid supplementation is carried out as required and then liquid flows into hemodialysis cavity fordialysis treatment.

Description

technical field [0001] The invention relates to an adsorption hemodialyzer, which can perfuse blood to absorb harmful medium and macromolecular impurities when clinically treating kidney diseases, and simultaneously perform hemodialysis treatment, belonging to the technical field of medical devices. Background technique [0002] Hemodialysis is mainly used to treat diseases such as chronic renal failure, acute renal failure and drug poisoning, and has been widely used clinically. Hemodialysis uses the principle of semi-permeable membrane to introduce the patient's blood and dialysate into the dialyzer at the same time, and flows in opposite directions on both sides of the dialysis membrane, relying on the solubility gradient, osmotic gradient and water pressure gradient on both sides of the semi-permeable membrane. Remove toxins through diffusion, convection, and adsorption; remove excess water in the body through ultrafiltration and osmosis; at the same time, replenish the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/16A61M1/36
Inventor 杨东生
Owner 苏州卓壹医疗器械有限公司
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