In acute and chronic kidney failure, waste products and toxins accumulate in the blood. Hemodialysis helps to purify it outside the body thanks to a special filter called a dialyzer. The procedure involves the formation of an arteriovenous fistula in the patient. Hemodialysis machines contribute to the removal of nitrogenous slags, electrolytes, substances that contaminate the blood.

The principle of operation of the machine

A hemodialysis machine uses a special permeable membrane. On the one hand, it is washed with the patient's blood, and on the other hand, with dialysis solution. During purification, metabolic products and excess fluid are removed from the body. Unhealthy kidneys cannot clear them on their own. Dialysate restores the balance of minerals and electrolytes. The hemodialysis machine has a number of advantages:

the presence of a display;
built-in controllers;
separate pumps for each component;
filters for cleaning the device;
convenience and safety of use.

Specialists of the medical institution ensure that special plastic containers containing acid concentrate and bicarbonate are connected to the device. They are mixed with dialysis water and form a dialysate. The ready composition of the solution is adjusted by the doctor, according to the patient's treatment program. The machine ensures that the mixing and supply of fresh dialysate is adjusted during the session. During the procedure, protein, blood cells, important elements remain in the body, as their size does not allow them to pass through the membrane.

Types of dialysis

Hemodialysis prolongs and improves the life of patients with kidney failure. Depending on how it is carried out, the treatment technique is of several types:

Conventional hemodialysis is the most common method in the world. It is performed at least 3 times a week for 4 hours.
Prolonged ambulatory — lasts 5-6 hours, increases efficiency, controls blood pressure, reduces complications.
High-flow — conducted by special dialyzers that reduce the time of the procedure, provides high efficiency.
Daily brief — lasts 2-3 hours, 4-6 times a week, has a positive effect on the state of the body.
Hemodiafiltration — combines diffusion and convective methods of blood purification. Fluid is additionally introduced into the extracorporeal circuit, where harmful substances are removed.
Overnight — takes place during sleep, allows you to increase the duration of the procedure, improves the quality of life, well-being, reduces dietary restrictions, the incidence of complications.
Home — is carried out in the comfort of home.

Before buying a dialysis machine it is important to analyze the purpose and area of application regardless of the cost.

Where to get the best price on a hemodialysis machine

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