JP3017172U - Environmental microbiological test equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an apparatus for microbiological test, which is easy to hold in the hand and in which it is difficult for the hands, fingers, lids, etc. to accidentally contact the medium surface. [Structure] It is composed of a synthetic resin container body and a lid, and secures a large step between the peripheral edge of the opening and the outer peripheral wall of the container body,
Further, a large step is secured between the lower end of the outer peripheral wall and the upper end of the outermost peripheral wall that is located outside the lower end of the outer peripheral wall and extends downward. A plurality of ribs are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an apparatus for testing environmental microbes used in medical institutions, food and drug manufacturing plants, etc.

[0002]

[Prior art]

 Agar media with various components are used for microbiological testing. First, an agar medium is prepared, dispensed into a petri dish, and the test liquid prepared from the test material is inoculated into the medium. However, rather than this method, the new test device, which is designed so that the medium rises from the edge of the container, can bring the test material into direct contact with the medium surface and is more convenient. This new type of testing device has already been developed.

[0003]

[Problems to be solved by the device]

 However, in the above-described conventional testing device, when the medium is pressed against the test material while holding the testing device with the fingers, the distance between the medium and the fingers is short, so the medium surface is touched with the fingers. It may be scratched, scratched, or touch the test material. In this case, there was the problem that bacteria on the fingers were collected in addition to the bacteria on the test material. In addition, when the lid was put on, there was a problem that the edge of the lid scratched the surface of the medium on which the bacteria had been collected, and the number of bacteria could not be accurately examined. Furthermore, when culturing the collected bacteria, it is not possible to stack environmental microbiological test instruments, so they must be placed side by side on a desk, etc., and a place for them must be secured. There was also the problem that it should not be.

It is an object of the present invention to solve the above-mentioned conventional problems and to provide an environmental microorganism testing instrument capable of accurately collecting bacteria.

[0005]

Means for Solving the Problems In order to achieve the above object, the present invention comprises a synthetic resin container main body and a lid, and enlarges a step a between the peripheral edge of the opening and the outer peripheral wall of the container main body. It is formed so as to secure a large difference in level between the lower end of the outer peripheral wall and the upper end of the outermost peripheral wall that is located outside the lower end of the outer peripheral wall and extends downward. The inside of each step is characterized by multiple ribs arranged in a mountain shape. It is composed of a synthetic resin container main body and a lid, and the step a between the peripheral edge of the opening and the outer peripheral wall of the container main body. To ensure a large gap, and also to secure a large step b between the lower end of the outer peripheral wall and the upper end of the outermost peripheral wall that is located outside the lower end of the outer peripheral wall and extends downward. , Inside each of the steps, there are multiple ribs arranged in a mountain shape. In environmental microbiological test instrument comprising Te and is characterized with the bottom surface of the stepped portion b of the container body, providing a peripheral wall of the convex top surface Metropolitan of the lid.

It is desired that the synthetic resin material used in the device for testing environmental microorganisms of the present invention is transparent. As examples, acrylic, polystyrene, polypropylene, and polyethylene terephthalate are considered candidates. The synthetic resin material may be opaque.

On the outer peripheral wall of the container body of the apparatus for testing environmental microorganisms, a convex protrusion or a concave groove is provided in the vertical direction to secure a space between the lid and the lid. These are provided for the purpose of introducing the air necessary for the growth of microorganisms.

The mountain-shaped ribs provided inside the step portions a and b of the container body are provided at, for example, 4 to 10 places depending on the size of the container body, but may be provided at a plurality of other places. is there.

[0009] It is conceivable that the surface of the medium-filled portion of the container body is provided with a grid so that it can be easily determined when measuring the number of bacteria after culturing.

The following medium can be considered as the medium to be filled in the container body, but the medium is not particularly limited. Examples include egg yolk-added Mannit salt agar medium, BHI agar medium, NAC agar medium, Candida GS agar medium, standard agar medium, Desoxycolate agar medium, Sabouraud agar medium and the like.

[0011]

[Action]

 According to the invention of claim 1, since the peripheral edge of the opening of the container body is extended outward by the step a and the outermost peripheral wall is also extended outward by the step b, the medium surface can be touched with fingers. The test material can be contacted without damaging or touching it. In addition, by extending the outermost peripheral wall of the container body that is held by fingers downward, the container body becomes easier to hold and the culture medium surface can easily contact the test material. According to the second aspect of the present invention, the bottom surface of the stepped portion of the container body and the convex peripheral wall are provided on the top surface of the lid body. Therefore, as shown in FIG. As a set, one set can be easily stacked.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a container body made of synthetic resin, 2 is a lid for covering the container body 1, 4 is an opening of the container body 1, and 5 is a container body. The outer peripheral wall 1 is formed so as to secure a large step 7 between the peripheral edge of the opening 4 and the outer peripheral wall 5. A large step portion 14 is formed between the lower end of the outer peripheral wall 5 and the upper end of the lowermost peripheral wall 8 which is located outside the lower end of the outer peripheral wall 5 and extends downward. Numeral 3 is a protrusion provided on the outer peripheral wall 5 of the container body 1 at equal intervals to secure a space between it and the lid 2. Reference numeral 9 denotes a culture medium filling surface of the container body 1, and 6 denotes a culture medium filling the culture medium filling surface 9, which is filled so as to be slightly raised from the peripheral edge of the opening 4. 10 is a grid provided on the surface of the culture medium filling surface, 11 is a bottom peripheral wall provided on the bottom of the stepped portion 14 of the container body 1, 12 is a top peripheral wall provided on the top surface of the lid body 2, and 13 is the container body 1. Inner peripheral walls, 15 are ribs provided at a plurality of locations inside the stepped portion 7 and the stepped portion 14, which are arranged in a mountain shape as shown in FIG. 3 and are provided so that the culture medium filling surface 9 does not bend. Is.

An apparatus for testing environmental microorganisms having the above-mentioned configuration is, for example, that the medium filling surface 9 of the container body 1 is subjected to high-pressure steam sterilization at 121 ° C. for 20 minutes and then cooled to about 60 ° C. The lid 4 is used so that the lid 2 is attached so that it is raised by 1-2 mm from the peripheral edge of the portion 4.

When collecting a sample, the lid 2 is removed, the outermost peripheral wall 8 of the container body is held by fingers, and the medium 6 is brought into contact with the test material. Immediately after that, the lid body 2 is attached to the container body 1 again, and then cultured under appropriate culture conditions according to the bacteria to be inspected. After culturing, measure the number of bacteria on the surface of medium 6 by the method of distinguishing the agar medium used.

[0015]

[Effect of device]

 Since the device of claim 1 is configured as described above, it is possible to provide an environmental microbial test device capable of accurately collecting bacteria by making it difficult for the hands, fingers, and lids to contact the culture ground. Can be provided. In addition, the mountain-shaped ribs prevent the medium surface from bending, which has the effect of preventing the medium from coming off the container body. Since the device of claim 2 is configured as described above, even if the devices for testing environmental microorganisms are stacked, the peripheral wall of the top surface and the peripheral wall of the bottom prevent the respective devices from being displaced and are hard to collapse. Even if there are a lot of people, it has the effect of not requiring a large space.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an environmental microbial inspection instrument according to the present invention.

FIG. 2 is a side view showing a cross section of a part of the container body in the embodiment.

FIG. 3 is a partial bottom view of the container body.

FIG. 4 is a side view showing a cross section of a part of the lid in the above embodiment.

FIG. 5 is a side view in which the instruments for testing environmental microorganisms of the above-mentioned embodiment are stacked and a part of them is shown in cross section.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Container main body, 2 ... Lid body, 4 ... Opening part, 5 ... Outer peripheral wall, 7
... step portions a, 8 ... bottom peripheral wall, 11 ... bottom peripheral wall, 12 ... top peripheral wall, 14 ... step portion b, 15 ... rib.

Claims (2)

[Scope of utility model registration request] 1. A synthetic resin container body and a lid body,
The outer peripheral wall is formed so as to secure a large step portion a between the peripheral edge of the opening of the container main body and the outer peripheral wall, and further, is located at the lower end of the outer peripheral wall and outside the lower end of the outer peripheral wall and extends downward. An apparatus for testing environmental microorganisms, which is formed so as to secure a large step b with the upper end, and a plurality of ribs arranged in a mountain shape are provided inside the step. 2. A synthetic resin container main body and a lid,
The outer peripheral wall is formed so as to secure a large step portion a between the peripheral edge of the opening of the container main body and the outer peripheral wall, and further, is located at the lower end of the outer peripheral wall and outside the lower end of the outer peripheral wall and extends downward. The step b of the container body is formed in such a manner that the step b of the container body is formed so as to also secure a large step b with the upper end, and a plurality of ribs arranged in a mountain shape are provided inside the both steps. An environmental microbial inspection instrument that has a convex peripheral wall on the bottom surface of and the top surface of the lid.