Gastric mucosa preserving device applied to helicobacter pylori isolated culture

Abstract

The utility model belongs to the field of medical tools, and particularly discloses a gastric mucosa preservation device for helicobacter pylori isolated culture, which comprises a fixing frame and a specimen tube. A plurality of holes are formed in one fixing frame, a plurality of specimen tubes can be placed and fixed in the holes, a specimen tube body comprises a transparent tube body, a spiral tube cover and a sampling swab, a protruding clamping groove is formed in the center of the bottom of the inner side of the transparent tube body, the sampling swab is fixedly inserted into the clamping groove, and the spiral tube cover and an opening of the transparent tube body are opened and closed through threads. By designing the specimen tube, gastric mucosa specimens obtained by biopsy forceps under an endoscope are preserved and transferred to a laboratory for a helicobacter pylori separation culture experiment, and compared with a traditional method that a disposable sterile swab is used for sampling and is broken off to be placed in a sterile container, the design operation of the device is more convenient, and the operation is simpler. Meanwhile, the possibility of pollution in the sampling process is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of medical tools, specifically a gastric mucosa preservation device for the isolation and culture of Helicobacter pylori. Background Technology

[0002] Helicobacter pylori isolation and culture, using gastric mucosal tissue obtained through endoscopy as a culture specimen, is of great value for the clinical diagnosis of Helicobacter pylori infection. After the gastric mucosal specimen is obtained by biopsy forceps, the storage device used is particularly important.

[0003] Current techniques often use disposable sterile swabs to collect gastric mucosal tissue obtained by biopsy forceps. The disposable sterile swabs are then broken and placed in a sterile container. This process requires personnel other than endoscopists to operate, increasing the manpower burden. At the same time, the process of breaking the swabs can easily lead to contamination, affecting subsequent Helicobacter pylori isolation and culture. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a gastric mucosa preservation device for Helicobacter pylori isolation and culture is provided.

[0005] This utility model relates to a gastric mucosa preservation device for the isolation and culture of Helicobacter pylori, which includes a fixation frame and a specimen tube.

[0006] The fixing frame consists of a base, an upper plate and a lower plate. The upper plate is provided with multiple specimen tube insertion holes. The specimen tube insertion holes in each row or column are evenly arranged and have the same specifications. The lower plate is a closed flat plate used to place and fix several specimen tubes.

[0007] The specimen tube consists of a transparent tube body, a spiral cap, and a sampling swab. The transparent tube body has external threads, and the spiral cap has internal threads.

[0008] The specimen tube has a diameter of 15-20 mm, and the specimen tube insertion hole in the fixing frame has a diameter of 13-18 mm, so that the specimen tube can pass through the specimen tube insertion hole in the upper plate and be laid flat on the lower plate.

[0009] The specimen tube has a height of 55-60 mm and a diameter of 15-20 mm.

[0010] The height of the transparent tube is 40-45mm, and the distance between the upper plate and the lower plate is 30-35mm.

[0011] The sampling swab has a height of 55-58mm, and the transparent tube opening has a height of 45-50mm, so that the swab head can extend beyond the transparent tube opening.

[0012] The transparent tube has a snap-fit ​​groove in the center of the bottom surface inside. One end of the sampling swab is fixed inside the snap-fit ​​groove, and the other end is a cone-shaped brush swab head. The swab head is smaller than the inner diameter of the transparent tube opening, which is 12-15mm.

[0013] The height of the spiral tube cap is 25-30mm.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention designs a specimen tube and sampling swab so that the sampling swab is in an upright position after the tube cap is unscrewed. Compared with the traditional use of disposable sterile swabs that are broken, which increases the manpower burden and creates the risk of contamination, the design of this invention makes sampling more convenient while ensuring a sterile environment. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the transparent tube body in the specimen tube provided by this utility model;

[0019] Figure 3 This is a schematic diagram of the specimen tube provided by this utility model after sampling and inverting.

[0020] In the diagram: 1. Fixing frame; 101. Base; 102. Upper plate; 103. Lower plate; 104. Specimen tube insertion hole; 2. Specimen tube; 201. Transparent tube body; 202. Spiral tube cap; 203. Sampling swab; 204. Snap-fit ​​groove; 205. Swab head. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] like Figures 1 to 3As shown, a gastric mucosa preservation device for Helicobacter pylori isolation and culture includes a fixing frame 1 and specimen tubes 2. The fixing frame 1 consists of a base 101, an upper plate 102, and a lower plate 103. The upper plate 102 is provided with multiple specimen tube insertion holes 104, which are evenly arranged in each row or column and are of the same size. The lower plate 103 is a closed flat plate used to place and fix several specimen tubes 2. The specimen tube 2 consists of a transparent tube body 201, a spiral cap 202, and a sampling swab 203. The transparent tube body 201 has external threads, and the spiral cap 202 has internal threads. The two are of corresponding sizes, and the sealing and opening of the specimen tube are achieved by the threaded engagement.

[0023] The specimen tube 2 has a diameter of 15-20 mm, and the specimen tube insertion hole 104 in the fixing frame 1 has a diameter of 18-23 mm. The diameter of the specimen tube 2 is slightly smaller than the diameter of the specimen tube insertion hole 104, so that the specimen tube 2 can pass through the specimen tube insertion hole 104 of the upper plate 102 and be placed flat on the lower plate 103.

[0024] The specimen tube 2 has a height of 55-60 mm and a diameter of 15-20 mm. The transparent tube body 201 has a height of 40-45 mm, and the distance between the upper plate 102 and the lower plate 103 is 30-35 mm. The sampling swab 203 has a height of 55-58 mm, and the height of the opening of the transparent tube body 201 is 45-50 mm, allowing the swab head 205 to extend beyond the opening of the transparent tube body 201. A locking groove 204 is provided in the center of the bottom surface inside the transparent tube body 201. One end of the sampling swab 203 is fixed inside the locking groove 204, and the other end is a conical brush-shaped swab head 205, which is 12-15 mm smaller than the inner diameter of the opening of the transparent tube body 201. The spiral cap 202 has a height of 25-30 mm.

[0025] The transparent tube body 201 is made of PP (polypropylene), the spiral tube cap 202 is made of PE (high-density polyethylene), the rod of the sampling swab 203 can be made of medical-grade ABS (acrylonitrile-butadiene-styrene copolymer) plastic, and the conical brush-shaped swab head 205 can be made of nylon.

[0026] The operation steps are as follows:

[0027] An appropriate amount of tissue preservation solution is placed in specimen tube 2 and sterilized. Before endoscopic sampling, specimen tube 2 is placed in specimen tube insertion port 104 of fixture 1, with the transparent tube body 201 at the bottom and the screw cap 202 at the top. The screw cap 202 is unscrewed to expose the cone-shaped brush-like swab head 205. After the gastric mucosal tissue specimen is grasped by the endoscopic biopsy forceps, the forceps jaws are slightly opened, and the gastric mucosal tissue is gently scraped on the cone-shaped brush-like swab head 205 to allow the gastric mucosal tissue to adhere to the swab head. Then, the screw cap 202 is closed and tightened. After inverting specimen tube 2, with the screw cap 202 at the bottom and the transparent tube body 201 at the bottom, it is placed back in specimen tube insertion port 104, allowing the preservation solution to flow into the cap, and the gastric mucosal specimen is covered below the surface of the preservation solution. When transporting the sample to the laboratory for Helicobacter pylori isolation and culture, with the spiral tube cap 202 at the bottom, after unscrewing the cap, hold the transparent tube body 201 and transfer the gastric mucosal tissue adhering to the swab head 205 into the isolation culture for further specimen inoculation.

Claims

1. A gastric mucosa retention device for application to a Helicobacter pylori isolation culture, characterized in that, The utility model relates to a specimen tube fixing frame, including: A fixing frame (1) and a specimen tube (2); The fixing frame (1) is composed of a base (101), an upper plate (102) and a lower plate (103), the upper plate (102) is provided with a plurality of specimen tube insertion holes (104), the specimen tube insertion holes (104) in each row or each column are uniformly arranged and are of the same specification, and the lower plate (103) is a closed flat plate used for placing a plurality of specimen tubes (2); The specimen tube (2) is composed of a transparent tube body (201), a spiral tube cover (202) and a sampling swab (203), the transparent tube body (201) is provided with an outer thread, and the spiral tube cover (202) is provided with an inner thread.

2. The gastric mucosa retention device for application to a Helicobacter pylori isolation culture according to claim 1, characterized in that, The diameter of the specimen tube (2) is 15-20mm, the diameter of the specimen tube insertion hole (104) in the fixing frame (1) is 18-23mm, and the diameter of the specimen tube (2) is smaller than the diameter of the specimen tube insertion hole (104), so that the specimen tube (2) can pass through the specimen tube insertion hole (104) of the upper plate (102) and be placed flat on the lower plate (103).

3. The gastric mucosa retaining device for application to a Helicobacter pylori isolation culture according to claim 2, characterized in that, The height of the specimen tube (2) is 55-60mm.

4. The gastric mucosa retaining device for application to a Helicobacter pylori isolation culture according to claim 1, characterized by The height of the transparent tube body (201) is 40-45mm, and the distance between the upper plate (102) and the lower plate (103) is 30-35mm.

5. The gastric mucosa retention device for application to a Helicobacter pylori isolation culture according to claim 1, characterized in that, The height of the sampling swab (203) is 55-58mm, so that the swab head (205) can exceed the tube opening of the transparent tube body (201).

6. The gastric mucosa retention device for application to a Helicobacter pylori isolation culture according to claim 5, characterized in that, The inner bottom surface of the transparent tube body (201) is provided with a clamping groove (204) in the center, one end of the sampling swab (203) is fixed in the clamping groove (204), the other end is a conical brush-shaped swab head (205), the swab head (205) is smaller than the inner diameter of the tube opening of the transparent tube body (201), and the inner diameter of the tube opening of the transparent tube body (201) is 12-15mm.

7. The gastric mucosa retention device for application to a Helicobacter pylori isolation culture according to claim 1, characterized in that, The height of the spiral tube cover (202) is 25-30mm.

Images