Infusion device of peritoneal dialysis machine

Abstract

The invention provides an infusion device of a peritoneal dialysis machine, which comprises a liquid bag containing peritoneal dialysis solution, a liquid box and a waste liquid bag, wherein the liquid bag is arranged in the liquid box; an infusion tube and a drain tube are arranged between the liquid bag and the waste liquid bag; the liquid box is arranged above the abdomen of the human body, and the height difference between the liquid box and the abdomen of the human body is 500-800mm; and the waste liquid bag is arranged below the abdomen of the human body, and the height difference between the waste liquid bag and the abdomen of the human body is basically equal to the height from a bed surface to the ground. Because the peritoneal dialysis liquid bag is arranged in the position having a certain height to the abdomen of a patient, liquid flow pressure is formed through the height difference, thus the dialysis solution is led into an abdominal cavity; and similarly, after the osmotic exchange of the dialysis solution is finished, the waste liquid is discharged by utilizing the height difference between the waste liquid bag and the abdomen. The infusion device provided by the invention has the characteristics of simple structure design and safety in use.

Description

technical field [0001] The invention relates to a medical device, in particular to a transfusion device of a peritoneal dialysis machine. Background technique [0002] When the kidney function of the human body becomes ineffective, the patient often needs to use dialysis to maintain it. The medical methods are divided into hemodialysis and peritoneal dialysis. Among them, hemodialysis often needs to be carried out in a hospital because of its high equipment and technical requirements. The shortcomings of hemodialysis, the peritoneal dialysis developed later uses the patient's peritoneum as a semi-permeable diaphragm, periodically injects a sterile aqueous solution into the peritoneal cavity, and diffuses and osmotically exchanges across the peritoneum between the solution and the blood flow, so as to In order to remove the waste normally secreted by the kidneys and keep the kidneys at a normal human body level, currently manufactured peritoneal dialysis machines use several ...

AI Technical Summary

Problems solved by technology

[0002] When the kidney function of the human body becomes ineffective, the patient often needs to use dialysis to maintain it. The medical methods are divided into hemodialysis and peritoneal dialysis. Among them, hemodialysis often needs to be carried out in a hospital because of its high equipment and technical requirements. The shortcomings of hemodialysis, the peritoneal dialysis developed later uses the patient's peritoneum as a semi-permeable diaphragm, periodically injects a sterile aqueous solution into the peritoneal cavity, and diffuses and osmotically exchanges across the peritoneum between the solution and the blood flow, so as to In order to remove the waste normally secreted by the kidneys and keep the kidneys at a normal human body level, currently manufactured peritoneal dialysis machines use several power fluid pumps during the entire infusion and drainage process, and the fluid pumps either pressurize the fluid into the peritoneal cavity , or to provide suction for the rapid discharge of the liquid after dialysis. The realization of this structure often requires the cooperation of more precise pressure control, monitoring devices and flow balance devices. In addition, the above design also inevitably has the disadvantages of high manufacturing cost, difficulty in application in small and medium medical departments, and high treatment cost

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