DEVICE AND METHOD FOR HIGH-ACCURACY SAMPLING OF LIQUIDS IN AN AUTOMATIC SAMPLE ANALYZER Russian patent published in 2020 - IPC G01N35/10 G01F11/16 G01N1/38 F16K11/74 

FIELD: medical equipment.

SUBSTANCE: present invention relates to the improvement of devices for sampling liquids, for example various biological fluids, in particular whole blood, urine, etc., placed in sample containers. Distinctive feature of the proposed solution is the sampling tip with the possibility of discharge in the said second position of the liquid sample by means of displacement by the said pump unit; wherein liquid sampling valve (20) also comprises, in first position of valve, guide channel extending through valve body throughout its length parallel to longitudinal axis of said sampling element, note here that said guide channel allows free movement of sampling element 10 between said first and second positions via valve body. Inlet of the flow structure, in the second position of the valve, is located in the same part of the volume of the valve body, which is occupied by the guide channel in the first position of the valve. As a result of such improvements, a sample, sampling of which is carried out from a sampling container by means of sampling element (10), is directly transferred into an inlet of a flow structure containing an aliquot chamber for segmenting an aliquot of the sample with high accuracy. This eliminates the need to pass a sample along a long trajectory in sampling element (10), prior to dosed dispensing of some part of the sample with a sampling unit.

EFFECT: design of an improved sampling assembly having high accuracy when dosed dispensing small amounts of sample, in which the sample flow path is considerably reduced, in particular, is minimal.

12 cl, 30 dwg