JPS5867259A - Container for gas pasturization - 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 The present invention relates to an improvement in a container for storing objects to be sterilized and placing them in the sterilization chamber of a gas sterilizer for gas sterilization.

Traditionally, gas sterilization methods using ethylene oxide, formaldehyde gas, etc. have been used for rubber gloves and medical equipment that cannot be sterilized using autoclaves or dry heat sterilization. The object to be sterilized is sealed in a bag etc. made of the same material, placed in the sterilization chamber of the sterilizer, the sterilization chamber and the object to be sterilized are wrapped, the air inside the bag is evacuated, humidified, sterilizing gas is introduced, and sterilization is carried out. After sterilization, exhaust gas and air cleaning are performed to complete the process, and the bag is deformed because the sterilization chamber is under pressure and suction, and at the same time, the object to be sterilized inside the bag is also deformed. If the object to be sterilized is sealed in a container that does not deform during the sterilization process, the sterilization gas will not pass through it. By forming a large number of small holes in the container, or by making a plurality of small holes in the container, and closing the small holes with a thin film that allows sterilization gas to pass through but does not allow bacteria to pass through, the objects to be sterilized can be easily removed during the sterilization process. The present applicant has proposed a container for gas sterilization that does not deform and allows objects to be sterilized to be stored in a sterilized state while remaining in the container.

(Patent Application No. 56-144594). However, in order to allow gas to flow in and out of a gas sterilization container, the number of small holes drilled in the bottom of the gas sterilization container must be increased or the diameter must be expanded. There is a drawback that the thin film that fills it may peel off or be damaged.

The present invention relates to an improvement of such a container for gas sterilization, in which the container is made of a material that does not deform during the sterilization process, and the container is made of a material that does not deform during the sterilization process. Is there a thin wall in a part of the container? By forming a 7-shaped or cross-shaped slit in the thin part and closing the slit with a thin film that allows sterilization gas to pass through but does not allow bacteria to pass through, the efficiency of gas inflow and outflow is improved. To provide a gas sterilization container that does not cause peeling of the thin film or damage.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the drawings.

1 is a hard synthetic resin such as polyethylene or polypropylene, or a metal plate such as stainless steel, which is made of a material with almost no air permeability, and has a cylindrical shape as a whole, and has a cotton swab 2, which is the object to be sterilized, stored vertically inside for gas sterilization. It is a container main body, and a lid 4 formed of the same material as the sterilization container main body J is airtightly fitted to the top opening 3, and to the bottom 5]
A circular thin wall portion 6 with a chamber diameter of approximately 12 mm is formed, and a cross-shaped slit portion 7 with a width of approximately 1 mm is formed in the thin wall portion 6. cc/cr
An elastic thin film 8 made of a non-woven fabric made of polyethylene or the like or a non-woven fabric with small holes formed therein is attached to an adhesive 9 using a material that has an air permeability of about 300 sec and does not pass through sterilization. Or it is closed by pasting it using the real melt method.

To perform gas sterilization using the gas sterilization container of the present invention, the object to be sterilized, such as a cotton swab 2, is housed inside, the lid 4 is fitted, and a gas sterilization device (not shown) is installed inside the container. The air in the room is then exhausted, followed by humidification, heating, introduction of sterilization gas such as ethylene oxide gas, and air cleaning after sterilization. At this time, the gas sterilization container placed in the room has a cross-shaped slit 7 closed with an air permeable thin film 8 in the thin wall part 6 of the bottom part 5, so as shown in FIGS. As shown in the figure, since the thin wall portion 6 is suppressed inward and outward directions of the gas sterilization container body 1, the slit portion 7 formed in the thin wall portion 6 expands, allowing gas to flow out into the gas sterilization container. Since the slit portion 7 is closed when there is no gas flowing in or out, the thin film 8 will not be peeled off or damaged.

In this embodiment, the thin wall portion 6 is circular and the slit portion 7 is cross-shaped. However, for example, the slit portion 7 may be made into a figure 7 shape, and the slit expands as gas flows in and out of the sterilization container body. Needless to say, other shapes may be used as long as the configuration is such that the shape is suitable.

Since the present invention is configured as described above, even objects to be sterilized that are easily deformed can be easily gas sterilized without causing deformation of the objects to be sterilized, and the container for gas sterilization itself can also be deformed. It can of course be used for storage or as a container for products because it maintains a sterile state for a long period of time. It has various effects such as not being damaged.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a partially cutaway perspective view of a gas sterilization container, FIG. 2 is a bottom view,
FIG. 3 is an enlarged sectional view taken along the line A-A in FIG. 2, and FIGS. 4 and 5 are explanatory views of the state of use in FIG. 3. 1... Gas sterilization container body, 2... Cotton swab, 3...
Opening, 4... Lid, 5... Bottom, 6... Thin wall part,
7... Slit portion, 8... Thin film K 9'', adhesive. Patent applicant Vision Co., Ltd. Agent Patent attorney Elementary 1) Osamu Figure 1 Figure 2 b 5 Figure 3 Figure 4 Figure 5 Figure 359-

Claims (1)

[Claims] In a gas sterilization container that encloses an object to be sterilized and puts it into the sterilization chamber of a sterilizer, the container is made of a material that does not deform during the sterilization process, and a thin wall part is formed in a part of the container, and the thin wall part is A container for gas sterilization, characterized in that a Y-shaped or cross-shaped slit is formed, and the slit portion is closed with a thin film that allows sterilization gas to pass through but does not allow bacteria to pass through.