SU1764631A1 - Device for biological material collection - Google Patents

Abstract

Use: in medicine and biology for collecting biological material, such as fecal material from the rectum. The invention: the device consists of a flexible tube and a rod, which is placed inside it. A brush is attached to the rod, from closed hinges, a handle and a cork in the shape of a ball, 2 Il.

Description

The invention relates to medicine, specifically to medical technology, and can be used to sample stool from the rectum.

The glass rectal tube with a closed inner end is known (Manual on Clinical Laboratory Research, ed. E. Kost and L. G. Smirnova, 1964), the use of which is prohibited by the order of the Ministry of Health of the USSR from 1976, due to increased injury to mucous membranes.

The closest technical solution to the proposed is a device for taking a scraping from the mucous membrane of the rectum (Japanese patent application No. 61-57775, A, 61 B 10/00, 1986).

The device is an open tube at both ends with a piston integrated inward with a brush at the end, which is inserted into the rectum, and cope is pulled out by pushing the piston.

This device has a number of significant drawbacks: the lack of isolation of the internal space of the tube from external air creates the possibility of dissemination of the collected material by air flora and, accordingly, affects the quality of the analysis; a brush made of short bristles creates the possibility of injury to the mucous membrane; Sowing on solid media with such a brush is inconvenient, since it leaves uneven coarse marks on the surface of the medium.

The aim of the invention is to ensure the quality of the sample and improve ease of use.

The goal is achieved using a device for collecting biological material (Fig. 1), which is a tube I, in which rod 2 is located, with a stopper 3 fixed to it, in the form of a guide head, a brush 4 of elastic loops and a handle 5. The tube on the non-working end is closed with a cotton swab. In this case, the brush loops form an elastic elastic reticular structure, which in cross section is a circle

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with a diameter of 1.5 cm. The loops are directly behind the plug 3 for a length of 5-7 cm.

The device operates as follows. Tube 1 is inserted into the rectum. After insertion of tube 1, rod 2 is advanced 4-5 cm inside the intestine, and then the rod is retracted back into tube 1 and it is closed with cork 3. During such movements, loop 4 is in contact directly with the mucous membrane of the rectum. the working end of the tube excludes contact with the analysis of biological material with atmospheric air.

The device provides high quality of the material under investigation due to the fact that the sample is taken directly from

zistous, as well as by preventing air microflora from entering it.

The device is convenient to use and does not require special skills of medical personnel.

Claims (1)

Apparatus of the Invention A device for collecting biological material comprising a tube and a rod with a brush attached to it, characterized in that, in order to ensure the quality of the sample and increase the usability, the device is provided with a stopper and a handle rigidly fixed to rod, the brush is made of closed loops, the tube is made in the form of a ball and placed on the working end of the rod. J FIG. R Editor Compiled A, Peskov Tehred M. Morgental FIG. 2 Proofreader S.Yusko