RU181533U1 - A device for collecting liquid biological material - Google Patents

Abstract

The inventive utility model relates to medical equipment, namely to the equipment of sanitation and hygiene, and can be used for sampling and storage of urine samples for the purpose of further analysis in vitro. A device for collecting liquid biological material, including a test tube and a funnel, while the funnel is collapsible connected to the test tube. The technical result of the claimed utility model is to simplify the design and manufacturing technology, as well as accelerate the process of collecting samples of liquid biological material (urine) during its use.

Description

The inventive utility model relates to medical equipment, namely to the equipment of sanitation and hygiene, and can be used for sampling and storage of urine samples for the purpose of further analysis in vitro.

A known kit for collecting liquid biological material (urine) for further analysis of VACUETTE, company Greiner Bio-one, Austria [Product Catalog. Instructions for use. Electronic resource. The access mode to the resource https://shop.gbo.com/en/row/products/preanalytics/urine-collection/ - free], including a container with a lid and a vacuum tube with a stopper, the center of which is made of elastic rubber. At the same time, a recess (a device for collecting urine), closed with a protective label, is made in the lid, in which there is a tip designed to puncture the test tube plug when the test tube is connected to the container by installing it in the recess of the container lid. The described technical solution is used as follows. It is necessary to open the lid of the container and put it on the outside, on a clean surface (device for taking urine up). The patient needs to collect urine. The container should be filled no more than 3/4 of its volume. Next, close the container with a lid. Having lifted the protective label, it is necessary to insert the tube into the recess in the lid, gently press on it and keep the tube immersed in the recess until it is full. Next, remove the tube and stick the protective label back onto the cap. A test tube with a sample is ready for its transfer to the place of analysis.

A disadvantage of the known technical solution is the complexity of the design and its manufacture due to the need to make a special lid with a recess and create a vacuum in the test tube, while the urine sample is collected for a long time when applying this solution, since it is necessary to perform labor-intensive actions associated with filling the container first, and then test tubes. The implementation of the described actions by a sick patient who does not have experience with the kit can be difficult and time consuming.

The technical result of the claimed utility model is to simplify the design and manufacturing technology, as well as accelerate the process of collecting samples of liquid biological material (urine) during its use.

The essence of the claimed technical solution lies in the fact that the device for collecting liquid biological material, including a test tube, according to this utility model, contains a funnel, which is collapsible connected to the test tube.

Manufacturing options are possible in which:

- the funnel is connected to the test tube by tightly fitting the base of the funnel into the test tube;

- the funnel at the base contains a detachable part with a side and a blank bottom.

Thus, using the combination of the claimed features, a simplification of the design and its manufacture due to the presence of two simple elements (non-vacuum test tube and funnel) and acceleration of the process of collecting samples of liquid biological material (urine) during its use due to the fact that the collection of urine is carried out by means of a funnel is achieved immediately into a test tube, which is then closed with a stopper and sent to examine its contents.

In FIG. 1 shows an embodiment of a device for collecting liquid biological material (made an angular cut).

In FIG. 2 shows an embodiment of the funnel (an angular cut is made).

A device for collecting liquid biological material (Fig. 1) includes a test tube 1 and a funnel 2, while the funnel 2 is collapsible connected to the test tube 1, for example, by tightly fitting the base of the funnel 2 into the test tube 1.

Funnel 2 is made in the form of a volume consisting of a bell-shaped conical or cylindrical shape and a cylindrical base of small diameter (suitable for the inner diameter of test tube 1).

The walls of the funnel 2 bell can be made at an angle or be vertical. The shape of the funnel 2 can be square, round, oval and asymmetrical. Due to the selected angle of inclination of the walls of the cone-shaped bell, a minimum angle of attack is created - the angle between the stream of urine and the wall of the funnel 2 to exclude splashes that occur when a liquid hits the wall of the funnel 2.

The height of the funnel 2 is selected based on the physiological characteristics of a person, for example, in the range from 30 mm to 110 mm. Reducing the height of the funnel 2 bell increases the chance of a funnel overflow, as a person may not have time to react and set aside tube 1 with funnel 2 until it overflows. An increase in the height of the funnel 2 bell increases the distance between the funnel and the urethra. This increases the amount of spray since a stream of urine breaks up into drops, approximately at a distance of 15-18 cm from the exit from the urethra. Also, increasing the height of the funnel 2 bell increases the size of the funnel 2 significantly, which makes it inconvenient to use. The angle of the conical bell of the funnel 2 is selected in the range from 5 to 60 degrees relative to the axis of the funnel 2.

At the base of the funnel 2 has the shape of a cylinder (tube), the diameter of which corresponds to the inner diameter of the tube 1. This makes it possible to tightly insert the funnel 2 into the tube 1. The connection of the tube 1 and funnel 2 is made collapsible, tight, tight. When the tube 1 overflows, the junction does not leak, and the funnel 2 is filled. Due to the tight connection of the funnel-tube, the excess liquid can be drained over the edge of the funnel 2, while the funnel 2 does not fall out of the tube 1.

Between the bell of the funnel 2 and its base, a transitional cone-shaped part can be located, the angle of which is selected, for example, from the range of 35-55 degrees. Due to this, the fluid flow evenly flows into test tube 1.

Test tube 1 is a standard medical tube with an external diameter of 15.6 mm, made of glass, plastic or other materials intended for products of this purpose.

Funnel 2 can be made of polypropylene, polyethylene terephthalate, PVC, polystyrene or other materials intended for products of this purpose.

The inner diameter of the funnel 2 bell is selected during manufacture and use in the range from 20 to 100 mm based on the physiological characteristics of the patient (child, man, woman).

A variant is possible in which the funnel 2 at the base may contain a detachable part 3 with a flange and a dead bottom, the size of which corresponds to the internal size of the tube 1. In this case, the funnel 2 is inserted into the test tube 1 of the detachable part 3 until it stops against the edge. In use, it is necessary to pull out the funnel 2 to disconnect (break off, unscrew) the detachable part 3, insert the funnel 2 back, collect biological material and close the test tube 1 with the detachable part 3, like a stopper. In addition to simplifying the design, hygiene of the device is maintained. The connection of the detachable part 3 with the lower part of the funnel 2 is provided using segments. The segment is a short, narrow extension of the wall of the funnel 2. The optimal number of segments 3 or 4. This gives a sufficiently reliable connection on the one hand and, on the other hand, an easy separation of the detachable part 3 from the funnel 2, by breaking off or twisting the two parts relative to each other.

In a general embodiment of funnel 2, a sample of liquid biological material (urine) is collected as follows. If the device is disassembled, then the patient must connect the test tube 1 to the funnel 2. Collect urine. Test tube 1 should be filled no more than 3/4 of its volume. If tube 1 is full, it is necessary to drain the excess over the edge of funnel 2, without disconnecting tube 1 and funnel 2. Next, disconnect tube 1 and funnel 2 and close the tube 1 with a cap (not shown in the drawing). Test tube 1 with a sample is ready for its transfer to the place of analysis.

In the case when the funnel 2 contains a detachable part 3 with a flange and a deaf bottom, it is necessary to first disconnect (break off, unscrew) the detachable part 3 from the funnel 2. When holding the funnel 2 with one hand and rotating the detachable part 3 with the other hand, the segments break and the detachable part 3 is separated from the funnel 2. In this case, the detachable part 3 can be inserted into the tube 1 during the breaking of the segments. In this case, after breaking the segments, it is necessary to remove the detachable part 3 (tube) from the test tube 1 and insert the funnel 2. Then the patient collects urine in the test tube 1 in the above way and tightly closes the test tube 1 with the detachable part 3, like a stopper.

Claims (2)

1. A device for collecting liquid biological material, including a test tube and a funnel, while the funnel is collapsible connected to the test tube by tightly fitting the funnel base into the test tube, the diameter of which corresponds to the inner diameter of the test tube. 2. The device according to p. 1, characterized in that the funnel at the base contains a detachable part with a side and a blank bottom.

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