SU1291158A1 - Combined sorbent dialyzator - Google Patents

Abstract

A combination sorbent dialyser comprises a series connection of one or more haemodialysis units 1 with one or more haemoperfusion units 2. The haemoperfusion units may be arranged on one or both sides of the haemodialysis units. Each haemoperfusion unit may comprise one or more adsorption units with the same or different adsorbent substances or ion exchangers 7. Filters 11 may also be provided. <IMAGE>

Description

The invention relates to medical technology, namely to mass transfer artificial penny devices.

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and can be used for

treatment of acute and chronic renal failure, as well as other diseases.

A device for blood purification is known (USSR author's certificate No. 565668, cells, A 61 M 1/03, B 01 D 31/00, 1975), which contains a number of individual chambers with filters filled with various hemosorbents, which, at low technical costs for treatment, selectively remove only non-physiological substances from the blood. However, the currently available hemosorbent agents do not effectively remove urea-1, water, electrolytes and hydrogen ions in the treatment of renal failure.

The combined hemoperfusion device system with an ultrafilter or dialyzer is known (Nikolaev V.G., Strelko V.V. Gemosorbtsi on activated carbons, - Kiev, Naukova Dumka, 1979, p. 154-156), i.e. a combined sorbent dialyzer containing hemodialysis and hemosorption units sequentially connected, which allows to combine the advantages of hemodialysis and hemosorption. However, the combination of hemodialysis and hemosorption units using a hose system creates blood flows of various cross sections and in places of abrupt change in flow cross sections an increased load occurs on the blood, which leads to an increased possibility of hemolysis.

The purpose of the invention is to reduce the possibility of hemolysis.

The goal is achieved by the fact that in a combined sorbent dialyzer containing sequentially connected hemodialysis and hemosorption units, the latter have the same cross section of the hemosorption unit in the form of two or more chambers, with the hemodialysis unit being connected with one or both ends to the chambers.

FIG. 1 depicts a combined sorbent dialyzer with a hemosorbtion unit in the form of two 1samer.

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one with both ends of the hemodialysis unit; in fig. 2 - the same, with a hemosorption unit in the form of two chambers connected to one end of the hemodialysis unit.

Combined sorbent dialy-. the mash contains hemodialysis unit 1, which is connected either with its ends to the hemosorption unit, made in the form of two chambers 2 (fig.C or by one end with the hemosorption unit, made in the form of two chambers (fig. 2). Hemodialysis unit 1 contains fixed in the housing using an appropriate material, hollow fibers 3, which form inside the fibers, space for blood 4, and outside, space for dialysis solution 5. Each chamber of the hemosorption unit is formed by a sheath 6 filled with hemosorbent or a mixture of 7. Combined osorbentov sorbent dialyzer fitted with an inlet 8 and an outlet 9 for fittings blood | connecting the krovepro- it with water boiling system 10. Filter 11 defines a chamber 2 (Figure 1.) and 12 (2) gemosorbtsionnogo.bloka.

Combined sorbent dialyzer works as follows.

The patient's blood to be cleaned through the blood-conducting system 10 is directed through the inlet fitting 8 into the dialyzer, passes through serially connected hemodialysis 1 and hemosorption blocks, filled in the form of two or more chambers 2 or 12, filled with various hemosorbents or various mixtures of hematosis syrbentov. At the same time, the blood of a patient with renal insufficiency is purified by hemodialysis from urea, water, electrolytes and hydrogen ions, and by hemosorption from creatinine.

in uric acid, organic substances such as phenols, guanidine compounds, and medium molecular weight substances. The purified blood is discharged through the outlet fitting 9 into the blood conducting system 10.

Formed directly connected to one another by hemodialysis

In combination with hemosorption blocks of the same cross section, the compact combined sorbent dialyzer has only one entrance and one exit of blood and allows the blood to be cleaned to pass freely. from one block to another without

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due to the load on it, which is less recognized by the invention as a result of the possibility of hemotic examination, carried out by the Office for the invention of the GDR.

Liza.

Editor I. Gorna Order 63/7

Tehred L. Serdyukova

Circulation 596 VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. 4/5

Production and printing company, Uzhgorod, st. Project, 4

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Claims (1)

COMBINED SORBENT DIALYSIS, containing serially connected hemodialysis and hemosorption blocks, characterized in that, in order to reduce the possibility of hemolysis, the hemodialysis and hemosorption blocks have the same cross section, the hemosorption block is made in the form of two or more chambers, and the hemodialysis block is connected by one or both butts with cameras.