JPS61168360A - Bag like sterilizing material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a bag-like sterilizing material, and particularly to a bag-like sterilizing material suitable for sterilizing chemical analysis instruments and medical instruments.

[Technical background of the invention and its problems]

In general, chemical analysis instruments such as tanks, flasks, petri dishes, and beds, and medical instruments such as syringes, anesthesia masks, hoses, etc. are cleaned and sterilized before use.

By the way, in order to sterilize the chemical analysis instruments, conventional methods include wiping the instruments with gauze or the like soaked in ethyl alcohol before use, or heat sterilizing them in an autoclave. However, sterilization by wiping with gauze soaked in ethyl alcohol must be performed on each instrument immediately before use, which not only is less efficient, but also leaves unsterilized parts of instruments with complex shapes. There's a problem. Furthermore, heat sterilization using an autoclave requires covering the sterilized area with silver paper or the like to isolate it from the outside world after heat sterilization, which makes the work complicated.

On the other hand, conventional methods for sterilizing medical instruments include placing the medical instruments to be sterilized in a bag that selectively permeates ethylene oxide gas, storing the bag in a tank, and then supplying ethylene oxide gas into the tank. Then, the same gas is allowed to flow into the bag to sterilize it.

Thereafter, the pressure inside the tank is reduced and the ethylene oxide gas supplied into the bag is discharged to the outside of the tank.

This method can sterilize a relatively large amount of medical instruments, and since ethylene oxide gas has a high sterilizing effect,
Medical instruments can be effectively sterilized. However, since ethylene oxide gas is highly toxic, it is necessary to thoroughly exhaust the gas under reduced pressure so that it does not remain in medical instruments. As a result, there was a problem in that sterilization work took a long time.

[Purpose of the invention]

The present invention aims to provide a bag-shaped sterilizing material that can sterilize chemical analysis instruments and medical instruments with simple and short operation, maintains sterilizing effect for a long time, is easy to handle, and is non-toxic and safe. That is.

(Summary of the Invention) The first invention of the present application includes an ethyl alcohol gas-permeable bag filled with an adsorption carrier adsorbing ethyl alcohol, and a gas-impermeable protective bag containing one of the bags. It is a bag-shaped sterilizing material that is characterized by:

The second invention of the present application is such that an ethyl alcohol gas permeable bag filled with an adsorption carrier adsorbing ethyl alcohol, an air permeable bag filled with an oxygen scavenger, and the above-mentioned container bag are stored separately. This is a bag-shaped sterilizing material characterized by comprising a gas-impermeable protective bag.

Examples of the adsorption carrier include starch, sugar, dextrin, cellulose powder, methyl cellulose, ethyl cellulose, gelatin, and silicon dioxide.

Powder, granules, lumps of aluminum silicate, talc, etc.
Examples include sheet-like materials.

Examples of the ethyl alcohol gas permeable bag include a bag made of paper, cellophane, polyethylene, polypropylene, etc., a bag made of the above-mentioned resin, polyvinyl chloride, polyvinylidene chloride, or metal foil and having many pores, or a bag made of paper and Examples include bags laminated with plastic having a large number of pores.

Examples of the gas-impermeable protective bag include bags made of gas-impermeable plastic such as a laminate film of polyethylene and polyvinylidene chloride or polyethylene and polyvinyl acetate.

Examples of the oxygen scavenger include iron powder.

Examples of the air-permeable bag include a paper bag, a bag made of polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, or metal foil and having a large number of pores, or a bag made of a laminate of paper and plastic having a large number of pores. etc. can be mentioned.

[Embodiments of the Invention] Hereinafter, the first invention of the present application will be described in detail with reference to FIGS. 1 and 2.

1 in the figure is a gas-impermeable protective bag, and the protective bag 1
is made of a laminate of polyethylene film and polyvinylidene chloride film.

Inside this protective bag 1 is an ethyl alcohol gas permeable bag 2.
is stored and sealed. This ethyl alcohol gas permeable bag 2 is made of a laminate of a polyvinyl chloride film (inner side) having a large number of pores and Japanese paper (outer side). As shown in FIG. 2, the bag 2 is filled with an adsorption carrier 3 made of pellet-shaped α-starch adsorbed with ethyl alcohol.

According to this configuration, when sterilizing a chemical analysis instrument, for example, a pipette, the cleaned bed is placed in a desiccator, the protective bag 1 is opened, and the adsorption carrier 3 is filled therein. When the ethyl alcohol gas permeable bag 2 is loaded into the desiccator, the adsorption carrier 3 inside the bag 2
Ethyl alcohol gas passes through the bag 2 and is gradually discharged into the desiccator, and the pipette placed in the desiccator is exposed to the ethyl alcohol gas atmosphere, so that the pipette can be effectively sterilized.

Therefore, according to the first invention of the present application, the instruments can be sterilized by simply opening the protective bag 1 and loading the instruments into the desiccator, so that the sterilization operation can be performed easily and in a short time. Moreover, since the bag-shaped sterilizing material of the first invention of the present application has one ethyl alcohol gas permeable bag 2 filled with the adsorption carrier 3 in the protective bag 1, handling becomes extremely simple. That is, in the case where a large number of ethyl alcohol gas permeable bags are housed in a gas impermeable bag, it is necessary to use a new ethyl alcohol gas permeable bag after opening the protective bag, and users who use a large amount There is no problem, but it becomes a problem in places such as laboratories where each bag is used individually. On the other hand,
With the structure of the first invention of the present application, this problem can be solved and handling becomes extremely simple. Furthermore, since the sterilizing material used in the present invention is mainly non-toxic ethyl alcohol, it is safe to handle.

Next, the second invention of the present application will be explained in detail with reference to FIG.

1' in the figure is a gas-impermeable protective bag having two bag parts 4a and 4b, and the protective bag 1' is made of a laminate of polyethylene film and polyvinylidene chloride film. An ethyl alcohol gas permeable bag 2 is housed and sealed in one bag portion 4a of the protective bag 1'. This ethyl alcohol gas permeable bag 2 is made of a laminate of a polyvinyl chloride film (inner side) having a large number of pores and Japanese paper (outer side). Inside this bag 2,
As shown in FIG. 2 described above, an adsorption carrier 3 made of pellet-shaped α-starch on which ethyl alcohol has been adsorbed is filled. Furthermore, an air permeable bag 5 is housed in the other bag portion 4b of the protective bag 1, and the bag 5 consists of a polyvinyl chloride film (inside) having many pores and a Japanese paper (Japanese paper).
It consists of a laminate of the outside). This air permeable bag 5 is filled with iron powder (not shown).

According to this configuration, when sterilizing a chemical analysis instrument, for example, a pipette, the cleaned pipette is placed in a desiccator and the two bag parts 4a14 of the protective bag 1' are sterilized.
When the ethyl alcohol gas permeable bag 2 filled with the adsorption carrier 3 and the air permeable bag 5 filled with iron powder are loaded into the desiccator after opening b, the air permeable bag 5
The iron powder filled inside the desiccator undergoes an oxidation reaction with the air inside the desiccator, and the air inside the desiccator is consumed, and at the same time, ethyl alcohol gas flows from the adsorption carrier 3 inside the ethyl alcohol gas permeable bag 2 into the bag. 2 and is gradually discharged into the desiccator. As a result, the pipette placed in the desiccator is non-oxidizing and is exposed to an ethyl alcohol gas atmosphere, resulting in faster sterilization compared to the case where the bag-shaped sterilizing material of the first invention of the present application is used. Significantly improved.

In the above embodiment of the first invention of the present application, the bag-shaped sterilizing material was constructed by housing the ethyl alcohol gas-permeable bag in a gas-impermeable protective bag, but the inside was filled with an adsorption carrier. An integrated bag (bag-shaped sterilization material) is constructed with an ethyl alcohol gas-permeable film and a gas-impermeable film on the outside that serves as a protective bag, and when used, only the outer film is removed to perform sterilization. It's okay.

In each of the above embodiments, a bed was used as an example of the object to be sterilized, but other chemical analysis instruments such as sterilizers, flasks, and petri dishes, or medical instruments such as syringes, anesthesia masks, and hoses may also be used. It can be similarly applied to sterilization.

In each of the above embodiments, the object to be sterilized was placed in a desiccator for sterilization, but it may also be placed in a large gas-impermeable bag for sterilization.

〔Effect of the invention〕

As described in detail above, according to the present invention, chemical analysis instruments and medical instruments can be sterilized easily and in a short time, and the sterilizing effect can be maintained for a long time. Bag-shaped sterilizing material can be provided.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a bag-shaped sterilizing material showing an embodiment of the first invention of the present application, and FIG. 2 is a perspective view showing an ethyl alcohol adsorption carrier to be filled into the ethyl alcohol gas permeable bag of FIG. , FIG. 3 is a perspective view of a bag-shaped sterilizing material showing an embodiment of the second invention of the present application. 1.1'... Gas-impermeable protective bag, 2... Ethyl alcohol gas-permeable bag, 3... Adsorption carrier, 4a,
4b...Bag portion, 5...Air permeable bag. Applicant's agent Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 3

Claims (2)

[Claims] (1) A bag-shaped sterilizing material comprising an ethyl alcohol gas-permeable bag filled with an adsorption carrier adsorbing ethyl alcohol, and a gas-impermeable protective bag containing one of the bags. . (2) An ethyl alcohol gas-permeable bag filled with an adsorption carrier that adsorbs ethyl alcohol, an air-permeable bag filled with an oxygen absorber, and a gas-permeable bag containing each of the above-mentioned bags separately. A bag-shaped sterilizing material characterized by comprising a permeable protective bag.