JP3208922B2 - Ozone sterilizer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone sterilizer,
More particularly, the present invention relates to a device for ozone sterilizing a bed mattress (hereinafter, referred to as a bed mat) or a pillow in a hospital.

[0002]

2. Description of the Related Art Conventionally, bed mats used in hospitals and the like have been sterilized by formalin fumigation or sun drying.

[0003]

However, in the case of formalin fumigation, it takes about one day and night for fumigation treatment (the time required for formalin to fully penetrate into the bed mat), and a strong odor remains on the bed mat after the treatment. For,
After the fumigation process, the bed mat can be used only after leaving it in a well-ventilated place for about 24 hours.
Moreover, it is difficult to sterilize the inside of the bed mat by drying in the sun.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an ozone sterilizing apparatus capable of sterilizing a bed mat or the like to the inside in a short time.

[0005]

In order to achieve the above object, an ozone sterilizing apparatus according to the present invention has a bag for accommodating a bed mattress or the like and hermetically sealing it, and a bag for exhausting the inside of the bag. A pump, an ozone generator for supplying ozone gas into the bag, and a pipe connecting the pump and the bag.
An ozone decomposing device and a first on-off valve provided in
The second is provided in the middle of the pipe connecting the zoning device and the bag.
Control the opening and closing operation of the first and second on-off valves
To switch the drive of pump and ozone generator together with
Control device having a memory in which assembled programs are stored
Constituted by and a location.

[0006]

According to the ozone sterilizing apparatus of the present invention constructed as described above, the bag is put into the bag and sealed, and then the pump is operated to evacuate and reduce the pressure in the bag. Contracts and the bed mat is crushed in the bag. Thereafter, when the pump is stopped and the ozone generator is operated to introduce ozone gas into the bag, the ozone gas is rapidly injected into the bed mat while the bed mat returns to its original shape and volume. Since the bag can be folded compactly, it is convenient to carry to a hospital room or the like.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the ozone sterilizer of the present invention will be described below in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a bag for accommodating a bed mat 2 or the like at the time of ozone sterilization. A bag made of a material resistant to ozone such as vinyl chloride and having sufficient flexibility and physical strength is used. An opening 3 for taking in and out the bed mat 2 and the like is provided on one side of the bag 1, and can be sealed by sandwiching an end of the bag 1 between a pair of jigs 4a and 4b. A pump 5 for exhausting the inside of the bag 1 and an ozone generator 6 are connected to the side surface of the bag 1 via pipes 7 and 8, respectively. An ozone decomposing device 9 is provided in the pipe 7 connecting the pump 5 and the bag 1, and a first ozone decomposing device is provided in the pipe on the bag 1 side of the ozone decomposing device 9.
An on-off valve (solenoid valve) 10 is provided. A second opening / closing valve (electromagnetic valve) 11 is provided in the middle of the pipe 8 connecting the ozone generator 6 and the bag 1. The drive of the pump 5, the ozone generator 6, and the on-off valves 10, 11 is controlled by a control device 12 built in a microcomputer. The memory of the control device 12 has the first and second on-off valves 10 and 11
A program is stored to control the opening and closing operations of the pump 5 and to switch the driving of the pump 5 and the ozone generator 6. This ozone disinfection device has a control device 12
Select a setting mode (processing number setting mode, processing time setting mode, processing number setting mode, etc.) on a control panel (not shown) provided in
Alternatively, if the number of bed mats to be processed at the same time is set, the entire sterilization process can be automatically performed from the start to the end according to the set conditions.

For example, when three bed mats are to be sterilized at the same time, three bed mats 2 are put in a bag 1 as shown in FIG. 2A, and the mouth 3 of the bag 1 is sealed with jigs 4a and 4b. It is only necessary to operate the control panel of the control device 12, select the number of processed sheets "3" in the number setting mode, and press the processing start button. When the processing start button is pressed, the pump 5 is driven in a state where the first opening / closing valve 10 is opened and the second opening / closing valve 11 is closed, and the evacuation of the bag 1 is started (evacuation step). In the operation in the number-of-sheets setting mode, a processing time T _N (T ₁ <T ₂ <T
_The exhaust process is performed at ₃ <... <T _N ). Thus the processing time in this case is T _3. The bag 1
Is contracted, and the bed mat 2 is crushed in the bag 1 as shown in FIG. Thereafter, the pump 5 is stopped and the first on-off valve 10 is closed, and then the ozone generator 6 is driven and the second on-off valve 11
Is opened. Since the second opening / closing valve 11 is opened in a state where the inside of the bag 1 is evacuated and decompressed, the ozone gas generated by the ozone generator 6 is quickly introduced into the bag 1 and the bed as shown in FIG. In the process of returning the mat 2 to its original shape and volume, ozone gas is rapidly injected into the bed mat 2 and used for sterilization (ozone gas supply / sterilization step). When the processing time set in accordance with the number of processed bed mats has elapsed, the ozone generator 6 is stopped, and then the first on-off valve 10 is opened and the pump 5 is driven. Thus, the atmosphere after the sterilization treatment in the bag 1 is exhausted through the pipe 7 on the pump 5 side, and air is introduced from the pipe 8 on the ozone generator 6 side, and the inside of the bag 1 is replaced with harmless air. Ozone remaining in the atmosphere discharged from the bag 1 is decomposed when passing through the ozone decomposing device 9. This replacement processing is also performed for a processing time set in accordance with the number of processed sheets (ozone decomposition / replacement step). This ozone sterilizer is equipped with exhaust, ozone gas supply and
After repeating a series of steps of sterilization and ozonolysis / replacement a predetermined number of times, the operation is stopped and the apparatus enters a standby mode for the next processing. In this state, the user removes the jigs 4a and 4b,
The mouth 3 of the bag 1 is opened, and the sterilized bed mat 2 is taken out. The bed mat 2 is completely sterilized to its inside by the repeated ozone sterilization.

[0010] The above sterilization treatment can also be performed in a treatment frequency setting mode or a treatment time setting mode. The processing number setting mode is a mode in which the processing time in each of the above-described steps is determined, and the processing number is set. The processing time setting mode is a mode for setting the time from the start to the end of the processing.

In this embodiment, the ozonolysis device 9 is used.
Has been described assuming the case of a catalyst type or an activated carbon type, but a heater pyrolysis type is also applicable. In that case,
It is desirable that the ozone decomposing device 9 is also turned on / off by the control device 12. The introduction of the replacement air into the bag 1 in the above-mentioned ozonolysis / replacement step is performed by the ozone generator 6.
Instead of passing through (stopped), the air may be supplied from a dedicated air inlet provided separately in the middle of the pipe 8 connecting the second on-off valve 11 and the bag 1. In this case, it is necessary to provide an opening / closing valve also at the air intake, and control the opening / closing operation by the control device 12. Further, the exhaust in the bag 1 and the introduction of the ozone gas into the bag 1 may be performed from a common supply / discharge port.

[0012]

As described above, according to the ozone sterilizer of the present invention, the following excellent effects can be exhibited.

(1) Ozone gas can be introduced after the inside of the bag is evacuated to crush the bed mat or the like, so that the ozone gas can be introduced into the bed mat in the process of returning to its original shape and volume. It can be quickly penetrated into the mat and sterilized to the inside in a short time.

(2) The ozone remaining in the exhaust gas from the bag can be decomposed by an ozone decomposer, which is safe.

(3) The ozone sterilization process can be completely automated by electrically controlling the components such as a pump, an ozone generator, a first on-off valve, and a second on-off valve.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of an ozone sterilizer according to the present invention.

FIG. 2 is a process chart for explaining a series of operations of the ozone sterilizing apparatus shown in FIG.

[Explanation of symbols]

 1 bag 2 mattress for bed 3 port for putting in and out mattress for bed 4a, 4b jig 5 pump 6 ozone generator 7 piping 8 piping 9 ozone decomposing device 10 first on-off valve 11 second on-off valve 12 control apparatus

Continuation of the front page (72) Inventor Toshiyuki Shimoyama 3-1-1-15 Toyosu, Koto-ku, Tokyo Inside Ishikawa Shima Harima Heavy Industries Co., Ltd. Toji Technical Center (72) Inventor Tamaki Hosokawa 3-1-1 Toyosu, Koto-ku, Tokyo No. Ishikawa Shima Harima Heavy Industries, Ltd. Toji Technical Center (56) References JP-A-57-131448 (JP, A) JP-A-62-133963 (JP, A) JP-A-2-237565 (JP, A) JP-A-52-115593 (JP, A) JP-A-60-135056 (JP, A) JP-A-3-146113 (JP, A) JP-A-56-63354 (JP, A) JP-A-4-22365 (JP, A) JP-A-4-352659 (JP, A) JP-A-1-75432 (JP, U) JP-B 64-3504 (JP, B2) JP-B 52-19399 (JP, B2) Table 62-502172 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61L 2/00-2/26

Claims (2)

(57) [Claims] 1. A bag capable of accommodating a bed mattress or the like and hermetically sealing the bag, a pump for exhausting the inside of the bag, an ozone generator for supplying ozone gas into the bag, and the pump. Provided in the middle of the pipe connecting the
Ozonolysis device and a first on-off valve,
A pipe provided between the generator and the bag
Control the opening and closing operations of the second on-off valve and the first and second on-off valves.
And the pump and the ozone generator are turned off.
Has a memory that stores the program
Ozone disinfection apparatus characterized by comprising a control device for. 2. A bed mat on one or both sides of the bag.
In addition to providing a mouth for putting in and out stress,
Hold the end of the bag with a pair of male and female jigs to seal the mouth.
The ozone sterilizer according to claim 1 .