Hemodialysis system

A technology of hemodialysis and dialysis tubes, which is applied in the field of hemodialysis systems, can solve the problems of increased treatment difficulty, large dialysis equipment, and death, and achieve the effects of reducing the incidence of blood infection, increasing the dialysis area, and improving dialysis efficiency

Inactive Publication Date: 2018-03-16
成都测迪森生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dialysis process has the following problems: (1) The blood is separated from the body, which may cause a sharp decrease or increase in the blood volume of the patient, resulting in unstable blood pressure and even death; (2) The extracorporeal dialysis process usually only lasts for several hours , unable to continuously, long-term, and stably perform hemodialysis for patients; (3) The extracorporeal dialysis equipment is huge and difficult to transport, and the patient needs to be transported to the dialysis room, or the huge extracorporeal dialysis machine is transported to the patient's bedside, which increases the difficulty of treatment ; (4) The instrument is expensive, reaching hundreds of thousands or even millions

Method used

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Embodiment 1

[0040] Such as Figure 1-4 As shown, the present embodiment provides a hemodialysis system, which includes a dialysis tube 1, a connection part 2 connected to the dialysis tube 1, a fixing part 3 arranged between the dialysis tube 1 and the connection part 2, a dialysate container 4, Peristaltic pump 5 and waste liquid cylinder 6. The dialysate container 4 is connected to the connecting part through a liquid inlet pipe 41 , the peristaltic pump 5 is connected to the connecting part through a liquid outlet pipe, and the waste liquid cylinder 6 is connected to the peristaltic pump 5 through a conduit.

[0041] The dialysis tube 1 includes a dialysis outer tube 11 , a dialysis inner tube 12 and a dialysis membrane. Dialysis outer tube 11 is sleeved on the outer periphery of dialysis inner tube 12. There is a gap between dialysis outer tube 11 and dialysis inner tube 12 to facilitate blood circulation. Dialysis outer tube 11 is hollowed out so that blood enters dialysis outer tub...

Embodiment 2

[0049] This embodiment provides a chitosan quaternary ammonium salt-polylactic acid composite membrane and a preparation method thereof. The chitosan quaternary ammonium salt-polylactic acid composite membrane is a positively charged hollow fiber membrane, which is used as a dialysis membrane for hemodialysis It has a good application prospect. This chitosan quaternary ammonium salt-polylactic acid composite film is prepared through the following steps:

[0050] Step 1: Take 28g of chitosan quaternary ammonium salt, 109g of polylactic acid, and 32g of polyethylene glycol, and dissolve them in 1L of dimethyl sulfoxide at 50°C to obtain a polylactic acid mixture; add methyl alcohol to the polylactic acid mixture Glycidyl acrylate 0.6g, add 0.001g of azobisisobutyronitrile after 30min of nitrogen gas, raise the temperature to 60°C and carry out free radical polymerization reaction under nitrogen protection for 20h to obtain chitosan mixed with glycidyl methacrylate Quaternary am...

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Abstract

The invention discloses a hemodialysis system and relates to the field of medical equipment. The hemodialysis system of the present invention includes a dialysate container, a dialysis tube, a peristaltic pump and a waste liquid tank connected in sequence; the dialysis tube includes a dialysis outer tube, a dialysis inner tube and a dialysis membrane, and the dialysis outer tube is sleeved on the outer periphery of the dialysis inner tube and the dialysis tube. There is a gap between the inner tubes, and the dialysis membrane is wrapped on the outer wall of the dialysis inner tube, and the surface of the dialysis membrane has a positive charge; the dialysis inner tube is U-shaped or V-shaped, and the openings are respectively the liquid inlet and the liquid outlet; the dialysate The container is connected to the liquid inlet through the liquid inlet pipe, and the peristaltic pump is connected to the liquid outlet through the liquid outlet pipe. The dialysis tube is placed in the human artery without taking blood out of the body for hemodialysis, so it has no effect on the blood pressure of the human body, and is safe, economical and less traumatic; it is indwelling in the blood vessel for multiple uses and continues to perform hemodialysis.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a hemodialysis system. Background technique [0002] Hemodialysis is to use the principle that the solute flows from the side with high concentration to the side with low concentration, and introduce the two solutions of blood and dialysate into the dialyzer with hollow fiber semi-permeable membrane at the same time, so that the blood is located in the hollow fiber semi-permeable membrane. The dialysate is located on the other side of the hollow fiber semi-permeable membrane, so that the solutions on both sides of the membrane can remove medium and small molecule toxins in the human blood through diffusion and osmosis. At the same time, the electrolytes in the blood can also pass through Osmosis reaches balance, so as to achieve the purpose of blood purification. [0003] Hemodialysis is also a common method for the treatment of edematous diseases, acute and chronic renal failur...

Claims

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Application Information

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IPC IPC(8): A61M1/16A61M1/18B01D69/12B01D63/02B01D67/00
CPCA61M1/1601A61M1/1621A61M1/1645B01D63/02B01D67/0011B01D69/12B01D69/125
Inventor 郑浩
Owner 成都测迪森生物科技有限公司
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