RU1831323C - Device for extraction of capillary blood - Google Patents

Abstract

Usage: in medical technology for the collection of capillary blood, for example from a finger, for subsequent analysis in clinical laboratories. SUMMARY OF THE INVENTION: the device is made of a transparent plastic mass with three marks applied at a distance of 20:33 and 100 mm from the tip of the pipette, the first of which corresponds to a set of blood for determining erythrocytosis, hemoglobin, white blood cells; secondly, to a reagent kit for determining the erythrocyte sedimentation rate; a third to a blood collection for determining the erythrocyte sedimentation rate, and also for determining glucose. The inner diameter of the pipette is -1.1 mm, the total length is 173 mm. 1 ill.

Description

The invention relates to medical equipment and can be used in the collection of capillary blood, for example from a finger. dp subsequent analysis in clinical laboratories,

The purpose of the invention is to reduce the cost of blood sampling with a single use of pipettes, to increase the labor productivity of laboratory assistants by reducing the number of manipulations, increasing ease of use, and eliminating the possibility of infection of patients with dangerous diseases.

The essence of the invention is to create a universal p-pipette that replaces several conventional ones with an inner diameter that allows its production from plastic mass (by choosing the optimal ratio of its geometric dimensions), which makes it possible to use it once for blood sampling, and

it also does not require replacing existing standard laboratory equipment with new one.

The drawing shows the proposed device.

The device is made in the form of a tube 4 having three marks -1,2,3 and made of a transparent material - plastic, with a length of 173.0 mm and an inner diameter of 1.1 mm; it has three marks - 1, 2, 3 at a distance of 20 mm ) .33 mm (2) and 100 mm (3) from the tip.

Blood sampling using the device is carried out as follows.

To determine white blood cells, or erythrocytes, or hemoglobin, a set of blood up to mark 1, which corresponds to a volume of 0.02 ml. Next, the selected blood is processed as usual by standardized methods.

To determine the erythrocyte sedimentation rate v, a reagent solution (citrate

00

CA

iOJ

u with

with

sodium) is collected up to mark 2, blown into a container to mix the reagent with blood, then the same pipette is used to draw blood to mark 3, mix with the reagent again, recycle to mark 3 and inserted into the Panchenkov apparatus. Readings are taken after an hour by measuring the height of the column of plasma with a standard ruler with a millimeter scale.

The blood volume required for the determination of glucose - 0.1 ml is collected up to label 3.

The manufacture of a device from a transparent plastic mass with three marks at a selected geometric aspect ratio allows one mark to be used for blood sampling for two types of analyzes, makes it possible to replace three existing pipettes, and also to use it once. In addition, the dimensions of the device (length 173 mm) correspond to standard laboratory equipment.

Claims (1)

The claims Capillary blood sampling device made in the form of a hollow transparent tube with two marks for reagent collection and for blood collection in determining the erythrocyte sedimentation rate, characterized in that, in order to ensure one-time use and increase labor productivity of laboratory assistants, the tube is made of plastic material and is provided with an additional blood collection label when determining the content of leukocytes, erythrocytes or hemoglobin, located at a distance of 20 mm from the tip of the tube, while the label for collecting p asset is located at a distance of 33 mm from the tip of the tube and the label set for the determination of blood erythrocyte sedimentation rate at a distance of 100 mm from the tip of the tube. ,4 Aptly j Mark I S Tag1