RU169209U1 - Buccal Scraping Tool - Google Patents

Abstract

The utility model relates to medical equipment, namely to disposable medical instruments for collecting biological material from the surface of the oral mucosa for genetic research. The tool for buccal scraping of polymeric material has two protective caps with an internal thread at the ends, two opposite to the handle at an angle of 160 ° working parts with ends in the form of round cones; on the surface of the cones at an angle of 90 ° in a checkerboard pattern are villi with a height of 1 to 2 mm; atraumatic balls are located on top of the cones; below the bases of the cones on the working parts of the tool there is an external thread for connecting with the internal thread of the protective caps that cover the cones, protruding beyond the atraumatic balls; below the connection with the protective caps on the working parts there are notches for breaking them off in order to transport biomaterial.

Description

The utility model relates to medical equipment, namely to disposable medical instruments for collecting biological material from the surface of the oral mucosa for genetic research.

Known medical spatula for collecting biological material, made of plastic. It contains a handle, at the opposite ends of which there are working surfaces with external edges. Through holes are made through the outer edges of the working surfaces. The holes are separated by jumpers. The lateral surfaces of the holes form the inner working edges [1].

The disadvantage of a spatula is that it has a small surface for collecting biological material; is a reusable spatula that requires treatment with an expensive disinfectant solution, washing and boiling.

The use of cotton buds for buccal scraping is known. At the same time, it is recommended to rotate the stick 10-15 times, conducting it with light pressure on the surface of the mucous membrane between the teeth and cheeks. After the manipulation, the stick is placed in the envelope, marking it. In the case of using a double-sided cotton swab, it is necessary to cut off its second end in order to avoid confusion [2].

The disadvantage of using a cotton swab is the inconvenience of taking the material, the confusion with its ends, the need to find an envelope for transportation, the possibility of contamination of the surface of the stick with foreign biological material.

Known urogenital probe having a handle and a working part in the form of a brush with a spiral arrangement of villi, the free end of the working part is equipped with a polymer ball to ensure atraumatic probe [3].

The disadvantages of the tool is that its design is not adapted for the collection of biological material from the oral cavity. The tool has only one working end, which eliminates the collection of more than one sample. Contamination with foreign material is possible when transporting the probe to the laboratory. This tool is taken by us as a prototype.

The purpose of creating a utility model is to develop a convenient one-time tool for buccal scraping.

This goal is achieved by the fact that a tool made of a polymeric material has two protective caps with an internal thread at the ends, two working parts multidirectional to the handle at an angle of 160 ° with ends in the form of round cones; on the surface of the cones at an angle of 90 ° in a checkerboard pattern are villi with a height of 1 to 2 mm; atraumatic balls are located on top of the cones; below the bases of the cones on the working parts of the tool there is an external thread for connecting with the internal thread of the protective caps that cover the cones, protruding beyond the atraumatic balls; below the connection with the protective caps on the working parts there are notches for breaking them off for transport.

The connection of the working parts of the instrument with the handle at an angle of 160 °, the presence of specially arranged villi on the cones, the protection of the ends of the working parts with atraumatic balls allows quick, convenient, anatomical, and minimally invasive sampling of biological material from the oral mucosa. The presence of two working parts allows you to collect two samples at once from one person, which makes it possible to send the material to two independent laboratories, or to provide a control sample for comparative analysis.

Protective caps exclude contact between the cones and the external environment and foreign biological material, both before and after the study. After breaking off the two working parts along the notches, together with the cones protected by caps, they turn into original containers for transporting biological material.

The technical result of using the tool is to ensure convenient buccal scraping with two samples of biological material.

The tool for buccal scraping from a polymeric material has two protective caps with an internal thread at the ends, two working parts opposite to the handle at an angle of 160 ° with ends in the form of round cones; on the surface of the cones at an angle of 90 ° in a checkerboard pattern are villi with a height of 1 to 2 mm; atraumatic balls are located on top of the cones; below the bases of the cones on the working parts of the tool there is an external thread for connecting with the internal thread of the protective caps that cover the cones, protruding beyond the atraumatic balls; below the connection with the protective caps on the working parts there are notches for breaking them off in order to transport biomaterial.

The tool is illustrated with graphic material. The figure 1 shows a tool having two working parts 2 opposite to the handle 1 at an angle of 160 ° with ends in the form of round cones 3. Atraumatic balls 4 are located on the top of the cones 3. Below the bases of the cones 3, the working parts 2 have threaded connections 5 with protective caps 6 that cover the cones 3, protruding beyond the atraumatic balls 4. Below the threaded connections 5 with the protective caps 6 on the working parts 2 there are notches 7 for breaking off for the purpose of transporting biomaterial.

The tool is used as follows. When performing a genetic examination, for example, to establish paternity, a buccal scraping is performed, having prepared an oral cavity accordingly. Unscrew the protective cap from one working part of the instrument, perform the study by conducting a cone along the mucosa between the teeth and the cheek. After removal, the protective cap is screwed again. A similar study is performed using the opposite working part of the tool. Break off the working parts of the tool by the notches, getting two original containers for transporting two samples of biomaterial for research.

A buccal scraping tool can be recommended for collecting biological material in laboratories and hospitals.

Information sources:

1. Patent RU 2174372. Spatula medical class. IPC А61В 17/02. Priority 02.15.2000

2. www.bnexpert.ru/expertiza/?id=38. Krasnodar, 2011. Bureau of Independent Expertise. Sampling of buccal epithelium.

3. http://diaklon.tiu.ru/a108729-urogenitalnve-zondy.html Article "Urogenital probes" from 04/15/2013; Urogenital probe, type D

Claims (1)

A buccal scraping tool containing a handle and villi for collecting biological material, characterized in that the tool is made of polymeric material and has two protective caps with an internal thread at the ends and two working parts opposite to the handle at an angle of 160 ° with ends in the form of round cones with atraumatic balls on the tops, the villi are made from 1 to 2 mm high and are staggered on the surface of the cones at an angle of 90 °, and below the bases of the cones on the working parts of the tool external thread for connecting with the internal thread of the protective caps that cover the cones, protruding beyond the atraumatic balls; at the same time, below the connection with the protective caps on the working parts there are notches for breaking them off in order to transport biomaterial.

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