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Hemodialysis catheter

A technology of hemodialysis tube and dialysis unit, which is applied in the field of hemodialysis tube, can solve problems such as unstable blood pressure, large dialysis equipment, death, etc., and achieve the effect of avoiding invasive injury, increasing 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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Examples

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Embodiment 1

[0037] Such as Figure 1-3 As shown, the present embodiment provides a hemodialysis tube, which includes a dialysis part 1 , a connection part 2 connected to the dialysis part 1 , and a fixing part 3 disposed between the dialysis part 1 and the connection part 2 .

[0038] The dialysis unit 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 tube 11 and dialysis tube 12. The space between the inner tubes 12. The dialysis membrane is wrapped on the outer wall of the dialysis inner tube 12, and the dialysis inner tube 12 can be considered to support the dialysis membrane or shape the dialysis membrane. The dialysate flows through the inner dialysis tube 12, and the dialysis part 12...

Embodiment 2

[0045] This embodiment provides a polytetrafluoroethylene-polyurethane-nano-silver composite material and its preparation method. The polytetrafluoroethylene-polyurethane-nano-silver composite material has good biocompatibility and antibacterial properties, and it is used for hemodialysis The built-in dialysis tubing has a good application prospect. This polytetrafluoroethylene-polyurethane-nano-silver composite material is prepared through the following steps:

[0046] Step 1: Weigh 54g of polytetrafluoroethylene concentrated dispersion, 38g of diisocyanate, and 14g of polycaprolactone diol, stir and mix and heat to 80°C, add 0.08g of 1,4-butanediol and stannous octoate to it 0.06g, continue to stir and maintain the heating temperature for 3 hours, then raise the temperature to 90°C, and add 0.13g of trimethylolpropane monoallyl ether to continue the reaction for 3 hours, and the polytetrafluoroethylene-polyurethane composite material can be obtained.

[0047] Step 2: The po...

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Abstract

The invention discloses a hemodialysis tube, which relates to the field of medical equipment. The hemodialysis tube provided by the present invention includes a dialysis part and a connection part, the connection part is connected to the dialysis part; the dialysis part includes an outer dialysis tube, an inner dialysis tube and a dialysis membrane, and the outer dialysis tube is sleeved on the periphery of the inner dialysis tube and is connected with the inner dialysis tube There is a gap between the dialysis membrane and the outer wall of the inner dialysis tube; the inner dialysis tube has a U-shaped or V-shaped structure, and the openings are the liquid inlet and the liquid outlet respectively; the liquid inlet and the liquid outlet pass through the connecting part ; Nano-silver is fixed in the pipes of the outer dialysis tube and the inner dialysis tube. The dialysis part of the dialysis device is small in size, and is directly placed in the human artery for hemodialysis, without the need to draw blood out of the body and then through the machine for hemodialysis, so that it has no effect on human blood pressure, and is more economical, safer and less traumatic than extracorporeal hemodialysis ; It can be left in the blood vessels for multiple use, and the patient is continuously on hemodialysis.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a hemodialysis tube. 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 failure ...

Claims

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Application Information

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IPC IPC(8): A61M1/16A61M1/18A61L29/12A61L29/14A61L29/16C08L27/18C08L75/06C08K3/08
CPCA61M1/1601A61L29/126A61L29/14A61L29/16A61L2300/104A61L2300/404A61M1/1621C08K2003/0806C08L27/18C08L75/04C08L75/06C08K3/08
Inventor 郑浩
Owner 成都测迪森生物科技有限公司
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