Container cover for fecological examination

Abstract

The utility model relates to a device for carrying out fecology examination on a fecal sample dissolved in a preservative mixture, which can be used in the medical industry. According to the scheme, a fine-mesh separation net which is made of a high polymer material and has the aperture of 0.4-1.2 mm is arranged in an inner cavity of a body of the cover of the faecology research container. The utility model aims to realize the technical result of increasing the possibility of detecting intestinal parasite wastes in a mixture obtained from a container of a preservative solution for fecal examination and a fecal sample containing the intestinal parasite wastes.

Description

Technical Field

[0001] The utility model relates to a device for performing fecal examination on a fecal sample dissolved in a preservative mixture, and can be used in the medical industry. Background Art

[0002] A container lid is known for conducting various types of research, such as analysis of body fluids and feces or environmental fluid samples, comprising a hollow body with cylindrical and conical parts, wherein the cylindrical part is used to fix the lid on the container, the end of the conical part is provided with a drainage hole, and a porous polypropylene filter is installed in the inner cavity of the shell with a pore size of 0.1 μm to 1 mm (WO2015187849A2, publication date: 12 / 10 / 2015).

[0003] The disadvantage of the known technical solution is that, due to the porous structure, the probability of detecting intestinal parasite waste in the mixture obtained from the preservation liquid of the coproleptic examination and the container of the stool sample containing intestinal parasite waste is low. The filter is essentially a sponge that removes and dissolves all relatively large particles from the test sample stool, up to bile salts and complex polysaccharides, so that when the test sample dissolved in the preservative liquid passes through the labyrinth of pores, all the most important elements for the qualitative study of the presence of intestinal parasites are precipitated therein, and the presence of helminth eggs, cysts, oocysts and other intestinal parasites cannot be detected in the studied stool sample, thereby reducing the effectiveness of the coproleptic study or making it completely impossible.

[0004] As a prototype, a container cover was selected for stool examination for the presence of blood, the container cover comprising a hollow body having cylindrical and conical parts, the cylindrical part being capable of fixing the cover on the container at the end of the container, the conical part having a drainage hole closed by the cover, and a fine-mesh partition net made of paper or nitrocellulose fiber being provided in the inner cavity of the body, but the document does not contain information on the size of the mesh (JP3264751B2, publication date: 03 / 11 / 2002).

[0005] The advantage of this prototype over known technical solutions is that the probability of detecting intestinal parasite waste in the mixture obtained from the preservation solution for coprophagological examination and the container of the stool sample containing intestinal parasite waste is higher, because the gridding net eliminates the chances of precipitation of the most important elements, thus performing a high-quality coprophagological examination of the presence of intestinal parasites in cells.

[0006] However, the known technical solution also has the disadvantage that the probability of detecting intestinal parasite waste in the mixture of the preservative liquid and the stool sample obtained from the container for stool examination is not high enough, because the geometrical dimensions and shape of the stool may change. The cells of the paper separator net, or decompose under the influence of the preservative liquid, make it impossible to collect a high-quality sample for subsequent studies, which deteriorates the performance characteristics of the container cover. Coproleptic studies, which can be manifested by the retention of the desired waste of intestinal parasites by the cells of the separator net, or the ingress of fat, vegetable fibers, muscle fibers and other particles, which have a negative impact on the results of coproleptic studies. The performance characteristics of the container cover for stool examination are significantly impaired by the examination of samples dissolved in the preservative liquid. Summary of the invention

[0007] The technical problem to be solved by the utility model is that the performance characteristics of a container cover used for feces research need to be improved.

[0008] The technical result that the utility model aims to achieve is to increase the possibility of detecting intestinal parasite waste in a mixture obtained from a container of a preservation solution for fecal examination and a stool sample containing intestinal parasite waste.

[0009] The essence of the utility model is as follows.

[0010] A lid for a container for fecal research comprises a hollow body having a cylindrical and a conical portion, wherein the cylindrical portion is used to fix the lid on the container, and the end of the conical portion is provided with a drainage hole and a fine mesh. A fine mesh separator is installed in the inner cavity of the body. Different from the prototype, the fine mesh separator is made of a polymer material, and its pore size ranges from 0.4 to 1.2 mm.

[0011] The cylindrical portion of the body can secure the lid to the container, for which purpose it can contain threads, rubber seals, or its diameter can be made in such a way relative to the diameter of the container to ensure that the lid can be pressed onto the container.

[0012] The fine mesh separator net increases the possibility of detecting intestinal parasite waste in a mixture obtained from a container for preservative liquid fecal examination and a stool sample containing intestinal parasite waste by improving the probability of eliminating the precipitation of the desired substance. The net is in the shape of an oblate cylinder and is made into a through-hole form, which is connected to the inner cavity of the cover.

[0013] The thickness of the fine mesh separator net can be 0.8 to 1.2 mm, increasing the possibility of detecting intestinal parasite waste in a mixture obtained from a container of a preservative liquid for a septic examination and a stool sample containing intestinal parasite waste. If the thickness of the net is less than 0.8 mm, the risk of deformation and defects of the fine mesh separator net increases, which may lead to a reduced possibility of detecting intestinal parasite waste in a mixture obtained from a container of a preservative liquid for a septic examination and a stool sample containing intestinal parasite waste. If the thickness of the net exceeds 1.2 mm, the risk of retaining the desired intestinal parasite waste in the intracellular cavity increases, which may have a negative impact on the possibility of detecting intestinal parasite waste in a mixture obtained from a container of a preservative liquid for a septic examination and a stool sample containing intestinal parasite waste. Preferably, the thickness of the fine mesh separator net can be 1 mm.

[0014] The fine-pored separator net is made of a polymer material, which also increases the possibility of detecting intestinal parasite waste in a mixture obtained from a container of a preservation solution for coprophagology and a stool sample containing intestinal parasite waste. In particular, this result is achieved because the polymer material eliminates the risk of increasing or decreasing the geometric dimensions and changing the shape of the cells of the separator net in the transverse or longitudinal plane, which in turn allows mass sampling from the container. The polymer material can be polypropylene or high-density polyethylene.

[0015] The cell size ranges from 0.4 to 1.2 mm, increasing the possibility of detecting intestinal parasite waste in the mixture obtained from the container of the preservative solution for coprophagia and the stool sample containing intestinal parasite waste. If the cell size is less than 0.4 mm, the possibility of the waste of intestinal parasites passing through the separation net is excluded, which is why it was impossible to detect them during the study. If the cell size is greater than 1.2 mm, then fat particles may enter the sample collected, thus negatively affecting the possibility of detecting intestinal parasite waste in the mixture obtained from the container of the preservative solution for coprophagia and the stool sample containing intestinal parasite waste. Advantageously, the net size may be from 1.01 to 1.2 mm.

[0016] To further increase the possibility of detecting intestinal parasite waste in a mixture obtained from a container for a septic fluid and a stool sample for a fecal examination, the number of cells may be 30 to 40 per square centimeter. The number of holes on the surface of the fine mesh separator is 30 to 40 per square centimeter.

[0017] The cross-sectional shape of the mesh may be circular. The main cross-sectional shape of the cells may be square, which increases the possibility of detecting intestinal parasite waste in a mixture obtained from a container for coproleptic examination of a preservative liquid and a stool sample containing intestinal parasite waste. The proximity of the cells to each other is maximized, thereby increasing the throughput area of ​​the cells relative to the total surface area of ​​the divided mesh.

[0018] The cover of the container for coprophagological studies may contain an additional separator mesh having a square grid shape in cross section and mounted in such a way that its surface contacts the surface of the main mesh and the axes of symmetry of the main mesh and the square grid coincide. In this case, the additional separator mesh may be mounted in such a way that the squares of the two meshes are rotated at an angle of 45° relative to each other. This design further increases the possibility of detecting intestinal parasite waste in a mixture obtained from the container for coprophagological examination of an embalming fluid and a stool sample containing intestinal parasite waste.

[0019] The conical portion of the body increases the possibility of detecting intestinal parasite waste in a mixture obtained from a container for coprophagia of preservative liquids and stool samples by reducing the risk of retention of sample components collected on the inner surface when the cover is moved to the drainage hole. The drainage hole can be equipped with a small cover or a lid.

[0020] To further increase the possibility of detecting intestinal parasite waste in a mixture obtained from a container for septic fluid coprophagia and a stool sample containing intestinal parasite waste, the conical portion may have an elongated cylindrical portion.

[0021] A utility model can be made from known materials and using known methods, which indicates that it meets the patentability standard of "industrial applicability".

[0022] The utility model has a set of basic features unknown in the prior art, characterized in that the fine mesh separator is made of polymer material, eliminating the risk of increasing or reducing the geometric size and changing the shape of the object. Under the action of the preservative liquid, the separator cells form separator cells in the transverse or longitudinal plane, and the cell size of the separator is 0.4 to 1.2 mm, which ensures that the waste of intestinal parasites can pass through the separator and eliminates the possibility of fat particles and other elements that reduce the quality of the selected sample entering the collected sample.

[0023] Thus, a technical result is achieved, which consists in increasing the possibility of detecting intestinal parasitic waste in a mixture obtained from a container of a preservative liquid for coprophagological examinations and a stool sample containing intestinal parasitic waste, thereby improving the performance characteristics of the lid of the container for coprophagological studies.

[0024] A utility model is characterized by a set of essential features that are unknown in the prior art, which indicates that it meets the patentability standard of "novelty". BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is described by the following drawings.

[0026] Figure 1 - Container cover for septic examination, half view, isometric.

[0027] Figure 2 - A lid for a container for septicological studies, wherein the conical portion has an elongated cylindrical portion to enable overflow into a centrifuge tube, and an isometric lid. DETAILED DESCRIPTION

[0028] In order to illustrate the possibility of implementation and to more fully understand the essence of the present invention, variations of its implementation are given below, which can be changed or supplemented in any way, but the present invention is by no means limited to the presented implementation.

[0029] Lids for containers used in scatological studies ( Figure 1 and Figure 2 ) comprises a hollow body having a cylindrical portion 10 and a conical portion 12 and drainage holes, and in the inner cavity of the body there is a fine mesh partitioning net 14 made of the following material: polymer material, with a thickness of 1 mm, a square size, and a range of 0.4 to 1.2 mm. In addition, in one embodiment of the utility model ( Figure 2 ) in which the conical portion has an elongated cylindrical portion 16 to allow the sample to be poured into a centrifuge tube, and the drainage hole is provided with a removable cover 18.

[0030] The working principle of the utility model is as follows.

[0031] To collect stool samples, use a container filled with a preservative solution, which can be a mixture of formalin and Lugol. Before performing a scatological examination, fit the lid of the proposed design on the container, in which the sample is stored in the liquid, and shake the container vigorously until a homogeneous mixture is obtained, then pour the contents of the container into the laboratory for examination of the test tubes and samples for the presence of intestinal parasite waste, especially eggs, cysts, and oocysts.

[0032] To confirm the possibility of achieving the technical results, an experiment was conducted, which included the analysis of stool samples, the results of which confirmed the presence of intestinal parasite waste, in particular cysts and oocysts.

[0033] The experiment involved three container covers. The first cover corresponds to the design of the utility model ( Figure 1), the second cover has a similar design, but the separator net is made of paper, and the third cover has a porous filter made of polypropylene with circular holes having a size of 0.01 to 1.0 mm, made in the form of a 5 mm thick sponge.

[0034] Table 1

[0035]

[0036] The experiment showed that the proposed design of the container cover for coproleptic studies made it possible to detect all the desired intestinal parasite waste in the sample, compared to the second cover, due to which the analysis showed a negative result, and also compared to the third cover, due to which the analysis showed the presence of only cysts when the sample also contained oocysts. The experiment showed that the sampling quality was significantly improved compared to cover 2 and cover 3, which contained a paper separator mesh and a porous polypropylene filter.

[0037] Furthermore, the proposed container cover design makes it possible to completely eliminate possible contact with the sample in the laboratory and ensures a long shelf life in accordance with repeated sampling requirements.

[0038] This ensures the achievement of a technical result, which is to increase the possibility of detecting intestinal parasitic waste in a mixture obtained from a preservation solution for coprophagological examinations and a container of a stool sample containing intestinal parasitic waste, thereby improving the test results and thus improving the performance characteristics of container covers for coprophagological studies.

Claims

1. A container cover for fecal examination, comprising a hollow body having a cylindrical and a conical portion, wherein the cylindrical portion is capable of fixing the cover on the container, the end of the conical portion is provided with a drainage hole, and a fine-mesh separation net is installed in the inner cavity of the body, characterized in that: The fine mesh separator is made of polymer material and has a pore size of 0.4 to 1.2 mm.

2. The container cap according to claim 1, wherein: The thickness of the fine mesh separator is 0.8 to 1.2 mm.

3. The container cap according to claim 1, wherein: The thickness of the fine mesh separator is 1 mm.

4. The container cap according to claim 1, wherein: The aperture size is 1.01 to 1.2 mm.

5. The container cap according to claim 1, wherein: The number of holes on the surface of the fine mesh separator is 30 to 40 per square centimeter.

6. The container cap according to claim 1, wherein: The grid has a square cross-section.

7. The container cap according to claim 6, wherein: An additional partition net is also installed in the inner cavity of the main body. The cross-section of the additional partition net is in the shape of a grid. It is installed in such a way that its surface contacts the surface of the main net, the symmetry axes of the main grid and the grid coincide, and the grids of the two nets are rotated 45° relative to each other.

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