A hemodialysis device

Abstract

The invention discloses a hemodialysis device. The hemodialysis device comprises a dialysate tank, a dialysate induction catheter, a dialysis catheter, a dialysate eduction catheter and a peristaltic pump; the dialysate tank is connected with the dialysate induction catheter, the outlet end of the dialysate induction catheter and the inlet end of the dialysate eduction catheter are connected with the dialysis catheter, the dialysate eduction catheter is connected with the peristaltic pump, and the peristaltic pump is connected with the dialysate tank; the dialysis catheter comprises a permeable inner tube, a dialysis membrane and a permeable outer tube, the tube wall of the permeable inner tube is wrapped with the dialysis membrane, the permeable inner tube is sleeved with the permeable outer tube, the inlet end and the outlet end of the permeable inner tube are arranged on the same side in the permeable outer tube, the inlet end of the permeable inner tube is connected with the dialysate induction catheter, and the outlet end of the permeable inner tube is connected with the dialysate eduction catheter. The hemodialysis device further comprises Y-shaped lock catches. According to the hemodialysis device, the dialysis catheter is arranged in the artery in a human body during dialysis, hemodialysis is completed in blood vessels, blood does not need to be drawn out of the body for hemodialysis, influence on the blood pressure of the human body does not exist, and the hemodialysis device is more economical and safer.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a hemodialysis device. Background technique [0002] At present, there are two mainstream therapies for relieving edema: 1. Drug diuresis: use drugs to increase the patient's urine output, thereby excreting excess water in the body through the "blood-kidney-urine" pathway; 2. Extracorporeal hemodialysis: The blood in the patient's body is drawn out, filtered through the extracorporeal dialysis equipment, and the excess water in the blood is filtered out, and the remaining "concentrated" blood is reinfused into the body, so as to achieve the purpose of relieving edema. [0003] Hemodialysis is also a common method for the treatment of acute and chronic renal failure (uremia) and acute drug poisoning and pesticide poisoning. At present, tens of millions of patients with chronic renal failure in my country need routine hemodialysis to maintain their lives every year, and ...

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Problems solved by technology

[0004] The therapy of prior art mainly exists following shortcoming: 1. drug diuretic method: shortcoming is that toxic and side effects and drug resistance phenomenon easily occur after a large amount of use of medicine, or because critically ill patient often merges with renal failure, has blocked the diuretic approach of appeal, causes Diuretic effect is not good; 2. Extracorporeal hemodialysis method: (1) Since the blood is taken out of the body and then reinfused into the patient's body, the blood volume in the patient's body will decrease or increase sharply during the period, resulting in unstable blood pressure and even death; 2) The extracorporeal dialysis process usually only lasts for a few hours, and cannot continuously, long-term, and stably dialyze excess water for the patient; The extracorporeal dialysis machine is transported to the patient's bedside, which increases the difficulty of treatment; (4) The equipment is expensive, amounting to hundreds of thousands or even millions

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