FIELD: medical equipment.SUBSTANCE: present invention relates to medical technique, and more particularly to a device for determining the dialysis properties of biocompatible membranes. Analytical cell for determining the dialysis properties of a hemocompatible membrane contains a base, in which a cavity is provided having a longitudinal axis perpendicular to the base and two channels for supplying the test liquid to the cavity and for removing the test liquid from the cavity, septum installed in said cavity fixed to the base and intended to guide the flow of the test liquid into the cavity. Cell also contains a beam, fixed to the base on the axis with the ability to rotate, and a bucket fixed to the beam and equipped with two holes for the supply and removal of working fluid from the bucket, and in the closed position of the analytical cell, the bucket is positioned above the cavity in the base, that the longitudinal axis of the bucket coincides with the longitudinal axis of the cavity in the base, and the edge of the bucket is located in the recess in the base. Baffle is installed in the bucket along its axis and is designed to direct the flow of working fluid in the bucket. Cell contains a hemocompatible membrane mounted in a recess in the base, so that in the closed position of the analytical cell the membrane seals the cavity in the base and hermetically closes the cavity of the bucket, and a chemical analyzer for determining glucose concentration, filtered from the liquid into the working fluid through a hemocompatible membrane connected to the outlet from the bucket.EFFECT: technical result is the creation of an analytical cell for determining the dialysis properties of a hemocompatible membrane and devices for determining the dialysis properties of biocompatible membranes in the system, the design of which will allow for preliminary modeling, which in turn will simplify the process of selecting materials for making a membrane for a sensor used to monitor blo
