Built-in hemodialysis system with dialysis tube

Abstract

The invention discloses a hemodialysis system with a built-in dialysis tube, which relates to the field of medical equipment. The hemodialysis system with built-in dialysis tube 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 an outer dialysis tube, an inner dialysis tube and a dialysis membrane, and the outer dialysis tube is sleeved on the inner dialysis tube There is a gap between the outer periphery and the dialysis inner tube, and the dialysis membrane is wrapped on the outer wall of the dialysis inner tube; the dialysis inner tube is U-shaped or V-shaped, and the openings are respectively the liquid inlet and the liquid outlet; the dialysate container passes through the liquid inlet tube Connected to the liquid inlet, the peristaltic pump is connected to the liquid outlet through the liquid outlet pipe; it also includes a connecting part, the liquid inlet and the liquid outlet pass through the connecting part respectively, and the connecting part is provided with a regulating valve to open or close the liquid inlet and / or outlet and adjust the flow rate. 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 with a built-in dialysis 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, ...

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

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