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Flat plate rolling type dialyzer

A dialyzer and flat plate technology, applied in the field of dialyzer, can solve the problems of high production cost, high energy consumption, large investment, etc., and achieve the effects of simplifying the manufacturing process, reducing the production cost, and reducing the occupied space

Pending Publication Date: 2021-10-01
GUANGZHOU ENTTEX MEDICAL PROD IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If these excessive organic solvents are not rinsed off during treatment, they will directly contact with blood and enter the human body. If they are used for a long time, they will cause great damage to the liver, eyeballs and skin of the human body.
[0007] 4. The production equipment for the production of hollow fibers in the prior art requires a huge investment, and requires more than ten sections of washing tanks to clean and more than ten sections of hot air to dry
Large water consumption, high energy consumption, easy environmental pollution, and high scrap rate of finished products, high production costs, directly lead to expensive finished products

Method used

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  • Flat plate rolling type dialyzer
  • Flat plate rolling type dialyzer
  • Flat plate rolling type dialyzer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] see Figure 1-5 , the flat roll-up dialyzer in this embodiment includes a dialysis installation shell 1, a flat composite membrane structure 2, and a central tube 3 for transporting dialysate; the central tube 3 is arranged in the dialysis installation shell 1, and the center The two ends of the tube 3 extend to the outside of the dialysis installation shell 1 and communicate with the pipeline for providing dialysate; the central tube 3 is provided with a liquid outlet through hole 3-1 and a liquid inlet through hole 3-2, the The liquid outlet through hole 3-1 and the liquid inlet through hole 3-2 are distributed along the axial direction; the inner cavity of the central tube 3 is provided with a blocking portion 3-3, and the blocking portion 3-3 separates the inner cavity of the central tube 3 It is divided into two parts that communicate with the liquid outlet through hole 3-1 and the liquid inlet through hole 3-2 respectively.

[0047] The flat composite membrane st...

Embodiment 2

[0059] see Figure 6 , and the difference from Embodiment 1 is that an interconnected flow channel 6 is provided between the two flow spaces 2-1-1, and the flow channel 6 is arranged at the end away from the flow opening. Through the above structure, when flowing forward along the helical flow space, part of the dialysate will permeate out of the membrane and merge with the blood, and the remaining part of the dialysate will enter another flow space from the flow channel 6 2-1-1, and then return to the central tube 3 through the liquid inlet through hole, and finally flow from the central tube 3 to the dialysis circuit. In this way, by opening up the two flow spaces 2-1-1, it is equivalent to opening up a channel that flows directly forward. While the dialysate is permeating, the flow of the dialysate can be accelerated, making the delivery of the dialysate smoother, which is beneficial to Improve dialysis efficiency.

Embodiment 3

[0061] see Figure 7 , and the difference from Embodiment 1 is that the sealing edge in this embodiment includes a straight line edge and an arc edge. Of course, other sealing structures are also possible.

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Abstract

The invention discloses a flat plate rolling type dialyzer which comprises a dialysis mounting shell, a flat plate composite membrane structure and a central tube; the two ends of the central tube extend out of the dialysis mounting shell, and a liquid inlet through hole and a liquid outlet through hole are formed in the central tube; a blocking part is arranged in the inner cavity of the central tube; the flat plate composite membrane structure comprises two layers of membranes, two flowing spaces are arranged between the two layers of membranes, and flowing openings are formed in the two spaces; the flat plate composite membrane structure is wound on the outer side of the central tube, and the flowing openings of the two flowing spaces are respectively communicated with the liquid inlet through hole and the liquid outlet through hole; a liquid inlet and a liquid outlet are formed in the two ends of the dialysis mounting shell respectively, and the liquid inlet, the membrane roll gap of the flat plate composite membrane structure and the liquid outlet are communicated with one another. The dialyzer not only has the advantages of being easy to clean, small in water consumption, high in yield, simple in manufacturing process and the like, but also integrates the filtering function and the dialysis function, dialysate is filtered before dialysis, and blood pollution is avoided.

Description

technical field [0001] The invention relates to a dialyzer, in particular to a flat-plate rolling dialyzer. Background technique [0002] Hemodialysis is a life-sustaining treatment for patients with urea, and the dialyzer is the core medical consumable for dialysis treatment. At present, the existing technology and clinical treatment dialyzer products are all hollow fiber membrane dialyzers of the polysulfone family [polysulfone polysulfon (PS) and polyethersulfone polyethersulfon (PES)]. Membrane, fixed with resin glue at both ends. The shell of the dialyzer has two end caps, blood enters from one end cap, and flows out from the other end cap after passing through the hollow fiber. There is a dialysate inlet at one end of the shell, and a dialysate outlet at the other end. During the clinical treatment of this dialyzer, the patient's blood is drawn out from the artery through the dialysis circuit and the blood pump, enters the hollow fiber membrane of the dialyzer, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/16
CPCA61M1/1621A61M1/1627A61M1/1631
Inventor 尹良红云琛云大信
Owner GUANGZHOU ENTTEX MEDICAL PROD IND CO LTD
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