JP3037198U - Ceramic culture cap - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To be compatible with a microorganism incubator such as a test tube or a flask, have suitable air permeability, prevent invasion of bacteria floating in the air, easy to handle, and sterilized after use. Provided is a ceramic culture cap suitable for post-treatment of disinfection. SOLUTION: Silicon rubber is molded into a hollow body, and a ceramic open-cell body having air permeability is held in the hollow upper part so as to shield the hollow part, and the lower part covers the outside of the incubator mouth or both inside and outside. Ceramic culture cap formed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a ceramic culture cap, which has an appropriate air permeability to be applied to a microorganism incubator such as a test tube or a flask, and prevents invasion of various bacteria floating in the air.

[0002]

[Prior art]

 When culturing microorganisms such as bacteria or yeasts in test tubes or flasks, a perfect stopper cannot kill the microorganisms and they die. Therefore, a slight air circulation is required, and in the past, (1) cotton stopper was used to wrap cotton with thread, and (2) paper stopper was used to stack multiple layers of paper, ( 3) Metal and rubber caps with small irregularities inside to allow air to flow through the gaps, and (4) Silicon rubber foam used partially or entirely as sponge. There was a rubber plug in the shape.

However, cotton plugs and paper plugs have drawbacks such as time and effort required to make them, dust is generated, etc., and they are gradually being used. In addition, if the inner surface of the metal is uneven, it is not stable and may fall off during work by simply covering it with the test tube. If you press it hard, the test tube (glass) may crack or have convex parts. It was crushed and there was an inconvenience that I couldn't expect the air flow.

At present, there is no other substitute, and a rubber stopper made of silicone foam is used. However, since it is soft in its entirety, it is pressed by pushing when plugging, and the bubbles of open cells are crushed, It may obstruct or stop the flow of air, and it requires skill and skill to push it in when plugging.

In addition, no matter where the operation or work is performed, a large amount of miscellaneous bacteria are suspended in the air, and in the case of a plug-in type stopper, falling bacteria adhere to the upper part of the test tube or flask. . Therefore, before opening the stopper, the mouth and stopper of the test tube or flask are briefly burned with a burner for simple sterilization. Furthermore, depending on the bacteria cultivated in the experiment, many of them are dangerous to the human body, and it is necessary to completely sterilize and post-treat the inside of the rubber stopper after each use. Silicone rubber sponges have better heat resistance at sterilization temperatures than other rubbers, but they are not as good as ceramics.

[0006]

[Problems to be solved by the device]

 The present invention is compatible with a microorganism incubator such as a test tube or a flask, has suitable air permeability, can prevent invasion of various bacteria floating in the air, is easy to handle, and can be sterilized and post-treated after use. The purpose of the present invention is to provide a stopper for a microbial incubator suitable for the above.

[0007]

[Means for Solving the Problems]

 As a result of earnest studies to solve the above problems, the present inventor has found that the ceramic open-cell body has excellent heat resistance and strength and is resistant to all chemicals, and is flexible and unreasonable for the test tube and the mouth of the flask. It was found that the cap of a desired microbial incubator can be obtained by combining it with a silicone rubber that is non-conforming, tasteless, odorless, non-toxic, and has heat resistance, and completed the present invention. It is a thing.

That is, according to the present invention, a silicone rubber is molded into a hollow body, and an air-permeable ceramic open-cell body is held in the hollow upper portion so as to shield the hollow portion, and the lower portion is outside or inside the incubator mouth. It is a ceramic culture cap formed so as to cover both sides. Up to now, it has not been known at all to use a ceramic for a culture cap or a culture stopper, which has excellent heat resistance and solvent resistance, and whose air flow rate and bubbles can be adjusted at the manufacturing stage.

Explaining the structure of the present invention, a silicone rubber is molded into a hollow body, and the hollow portion in the upper portion of the hollow body can be formed to have an appropriate size, but it is almost the same as the mouth portion of an incubator such as a test tube or a flask. It is preferable to form them in the same size. The lower part of the hollow body is formed so as to cover the outside of the mouth of the incubator or both inside and outside.

That is, when covering both the inside and outside of the incubator mouth, the inside of the incubator is extended as it is to match the inside of the incubator mouth and the outside is in the middle of the incubator. A cap-like shape is formed from the upper edge of the mouth to match the outside of the mouth of the incubator. Also, when covering only the outside of the incubator mouth, mold it in a shape that excludes the inner part of the above case, and further cover both the inside and outside of the incubator mouth. Then, the inside is formed in the same manner as above, and the outside is formed into a brim that shields the upper surface of the incubator mouth.

A ceramic open cell body having air permeability is held on the upper part of the hollow body of the silicone rubber so as to block the hollow section. The shape of the ceramic open cell body matches the shape of the hollow section. The shape is generally a circular plate. To hold the ceramic open-cell body, insert a ceramic open-cell body with a size matching the hollow part into the upper part of the hollow part and use the elasticity of silicon rubber to hold it. It is the easiest to do. The point is that they are held securely, and they can be configured arbitrarily.

The above-mentioned ceramic culture cap will be washed and disinfected and reused after use, but it is necessary to sterilize the cultivated bacteria and the like that have entered the internal air bubble portion of the ceramic open-cell body, For this purpose, it is preferable to remove the ceramic open cell body and clean and disinfect it. Therefore, when the ceramic open-cell body is held in the hollow upper part of the hollow body, it is not preferable to adhere it with an adhesive or the like because it cannot be removed. Ceramics can be used not only with steam sterilization and gas sterilization, but also with a strong burner if they can be removed after use and are cleaned and disinfected separately from the hollow silicon rubber body after use. Since it can be treated, appropriate cleaning and disinfection can be performed.

[0013]

[Embodiment of the invention]

 A test tube or flask is used as a microorganism incubator, but the mouth of the flask is generally formed in a cylindrical shape like a test tube.In the example, a ceramic culture cap to be applied to a cylindrical mouth is used. That is, the ceramic culture cap applied to the test tube is shown.

[0014]

【Example】

 Embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments. In FIG. 1, reference numeral 1 denotes a hollow cylindrical body made of silicon rubber, and the hollow portion of the upper portion of the hollow cylindrical body is formed to have substantially the same size as the mouth portion of the test tube. The lower part of the hollow cylindrical body 1 is divided into a part 2 to be inserted inside the test tube 5 and a part 3 covering the outside of the test tube 5, and the part 2 to be inserted inside the test tube 5 is the mouth of the test tube 5. The portion 3 that is formed in a hollow cylindrical body that matches the inner wall of the portion and covers the outside of the test tube 5 is formed in a cap shape that matches the upper edge of the mouth of the test tube 5 to the outside of the mouth of the test tube 5. Numeral 4 is a breathable ceramic open-cell body, which is formed into a disc with a diameter slightly larger than the inner diameter of the hollow portion above the hollow cylindrical body 1 and is inserted into the upper portion of the hollow portion by utilizing the elasticity of silicone rubber. keeping.

FIG. 3 shows another embodiment. In FIG. 3, 6 is a hollow cylindrical body made of silicon rubber, and the hollow portion above the hollow cylindrical body is almost the same as the mouth of the test tube 5. It is formed in a cylindrical body 7 having a size, is bent from the lower end of the cylindrical body 7, and is formed into a cap-like shape 8 that covers the outer edge of the mouth from the upper edge of the mouth of the test tube 5. Similarly to the above, 4 is a breathable ceramic open-cell body, which is formed into a circular plate having a diameter slightly larger than the inner diameter of the hollow portion of the upper portion of the hollow cylindrical body 6 to utilize the elasticity of silicon rubber to Holds inserted at the top of the section.

FIG. 4 shows still another embodiment. In FIG. 4, 9 is a hollow cylindrical body made of silicone rubber, the main body of which is a plug-like hollow cylinder that matches the inner wall of the mouth of the test tube 5. A brim-shaped body 11 is formed on the body 10 and covers the upper surface of the mouth of the test tube 5 in the middle of the plug-like hollow cylindrical body 9. Reference numeral 4 denotes a ceramic open cell body having air permeability, which is inserted and held in the upper part of the plug-like hollow cylindrical body 10 in the same manner as in the case of FIGS. 1 and 3.

[0017]

[Effect of the invention]

 The ceramic culture cap of the present invention is well adapted to a microorganism incubator such as a test tube or a flask, and protects the mouth of the test tube or flask, so that it is possible to prevent invasion of bacteria that float in the air, and the cap is capped. There is no need to sterilize with a burner when removing. In addition, it has an air permeability suitable for culturing, is easy to handle, has high resistance to sterilization and disinfection, and can be sterilized and repeatedly used.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of a ceramic culture cap according to the present invention.

FIG. 2 is a cross-sectional view taken along line AA of the same ceramic culture cap.

FIG. 3 is a vertical sectional side view showing another embodiment of the ceramic culture cap according to the present invention.

FIG. 4 is a vertical sectional side view showing still another embodiment of the ceramic culture cap according to the present invention.

[Explanation of symbols]

 1 Hollow cylindrical body made of silicone rubber 2 Insertion part of hollow cylindrical body into test tube mouth 3 Covering part of test tube mouth outside of hollow cylindrical body 4 Ceramic foam having air permeability 5 Test tube 6 Silicon rubber Hollow cylindrical body 7 Cylinder 8 Cap-shaped part of hollow cylindrical body 9 Hollow cylindrical body formed of silicon rubber 10 Plug-like hollow cylindrical body 11 Collar-shaped body formed in hollow cylindrical body

Claims (1)

[Utility model registration claims] 1. A silicone rubber is molded into a hollow body, and a ceramic open-cell body having air permeability is held in the hollow upper portion so as to shield the hollow portion, and the lower portion covers the outside of the incubator mouth or both inside and outside. A ceramic culture cap formed on.