JP3018274U - Bacteria suspension dispensing tray - Google Patents

Abstract

(57) [Summary] [Purpose] It is an object of the present invention to provide a tray for dispensing a bacterial suspension that reduces the labor and disposal cost for disposal after use. [Structure] The bacteria suspension dispensing tray is made of paper that contains polyolefin resin in natural wood fiber, which is a material that does not generate toxic gas or odor when burned and has a lower calorific value than general synthetic resins. In addition, it is possible to incinerate after use, reducing the labor of disposal and reducing the amount of waste. As a result, the disposal cost has been drastically reduced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, when the bacterial suspension to be dispensed into each well of the 96-well microplate is dispensed and supplied to the microplate, the bacterial suspension is stored and installed in the MIC-2000 system inoculator. The present invention relates to a tray for dispensing a bacterial suspension.

[0002]

[Prior art]

 The minimum inhibitory concentration test for drugs against microorganisms is conducted as a guideline for the treatment of antibiotics in patients with infectious diseases. The outline is that a certain amount of bacterial suspension is dispensed into each well of a 96-well microplate in which various antibiotics are arranged at various concentrations, and after culturing at a certain temperature for a certain period of time, the amount of the grown bacteria is measured optically. The method of measuring the intensity is commonly used. In a measuring machine MIC-2000 system (manufactured by Dynatec Co., Ltd.) for efficiently performing this test, dispensing of the bacterial suspension into a 96-well microplate is automated using an inoculator. When dispensing the bacterial suspension, in order to store the bacterial suspension and install it in the inoculator, generally, a tray for dispensing bacterial suspension made of plastic such as polystyrene or polyvinyl chloride is used. Was there.

[0003]

[Problems to be solved by the device]

 After use, the bacterial suspension dispensing tray becomes medical waste or sterilized industrial waste, but the plastic tray has a large amount of waste and a high disposal cost. Furthermore, when plastics are burned, toxic gas is generated, and the amount of heat generated is also large, so they could not be burned in an incinerator that burns paper, which was a major problem.

In view of the above-mentioned problems of the prior art, a patent is issued with the main object of providing a tray for dispensing a bacterial suspension that eliminates the above-mentioned drawbacks or inconveniences. Filed an application (Japanese Patent Application No. 5-152578). An object of the present invention is to provide a tray for dispensing a bacterial suspension by further making the problems of manufacturing cost and disposal cost more merit.

[0005]

[Means for Solving the Problems]

 The present invention that achieves the above-mentioned object is to store a bacterial suspension in a MIC-2000 system (manufactured by Dynatec Co.) inoculator, which is a device that automatically dispenses a fixed amount of bacterial suspension into each well of a 96-well microplate. The bacterial suspension dispensing tray installed in the container installation section is characterized in that it does not generate toxic gas or bad odor when burned, and is made of a material that generates less heat than general synthetic resins. However, this material is a paper made by mixing polyolefin resin into natural wood fiber, and can be molded by using a mold like plastic, so that it is possible to reduce the labor and cost of disposal. It is characterized by having done.

When a paper obtained by mixing a natural wood fiber with a polyolefin resin is used, it can be press-molded using a mold at an appropriate temperature and pressure. Therefore, it is easy to mold, and even though it is paper, it has ribs like plastic, is strong and does not drain. In addition, unlike synthetic resins, which do not have water repellency and are easily compatible with water, even a relatively small amount of bacterial solution can spread over the entire tray and be dispensed accurately. Regarding disposal after use, incinerate, for example, in comparison with 9,800 Kcal / kg of expanded polystyrene, in the case of paper with polyolefin resin mixed with natural wood fiber of the present invention, it burns in a general incinerator at 5,000 Kcal / kg. be able to. Also, it can be decomposed naturally even if it is landfilled.

[0007]

【Example】

 A tray for bacterial liquid dispensing was made using paper in which polyolefin resin was mixed with natural wood fiber. Since the material is paper mixed with natural wood fiber and polyolefin resin, it does not generate toxic gas or odor when burned, its calorific value is less than that of general synthetic resin, and after use, it is incinerated in a general incinerator. It became possible to do. In addition, it became possible to decompose naturally even by landfilling. This has led to a reduction in the volume of medical waste, which has dramatically reduced the costs associated with disposal.

(Manufacturing Example 1) A paper obtained by mixing polyolefin resin into natural wood fibers is used as a material and is compression molded using a mold. The long side 1 of the bottom part is 130 mm, the short side 2 of the bottom part is 84 mm, and the top part is long. Side 3 is 140 mm, short side 4 at the top is 94 mm, and wall 5 has a height of 18 mm. Length 18 mm, width 8 mm, height 2.5 mm at the center of both sides of the bottom long side 1. Of the positioning convex portion 6 and the short side 2 of the bottom of the convex portion 7 with a length of 50 mm, a width of 8 mm and a height of 7 mm, and the other end of the short side 2 of the bottom with a length of 20 mm, a width of 8 mm and a height of A bacterial liquid dispensing tray as shown in FIG. 1 provided with a convex portion 8 having a length of 7 mm was prepared. The positioning convex portion 6 is a convex portion for positioning when the main tray is installed in the bacterial suspension storage container installation part of the MIC-2000 system (manufactured by Dynatec) inoculator. Further, the convex portion 7 and the convex portion 8 are convex portions for making it easy to take one by one when using the main trays that are stacked and stored. When this tray was used for dispensing a bacterial suspension, a desired effect could be obtained.

[0009]

[Effect of device]

 As described in detail above, since the material for the bacterial suspension dispensing tray of the present invention is paper in which polyolefin resin is mixed with natural wood fiber, the labor of disposal after use is reduced, the amount of waste, Processing costs have also decreased.

[Brief description of drawings]

FIG. 1 is a perspective view of a tray for dispensing a bacterial suspension of the present invention.

[Explanation of symbols]

 1 Bottom Long Side 2 Bottom Short Side 3 Top Long Side 4 Top Short Side 5 Wall 6 Positioning Convex 7 Convex 8 Convex

Claims (1)

[Scope of utility model registration request] 1. A MIC-2000 system (manufactured by Dynatec Co., Ltd.), which is a device for automatically dispensing a fixed amount of a bacterial suspension into each well of a 96-well microplate, is installed in the bacterial suspension storage container installation part. Regarding the bacterial suspension dispensing tray, the bacterial suspension dispensing tray is characterized in that the tray material is made of paper in which a polyolefin resin is mixed with natural wood fibers.