WO2016104335A1 - Method for disinfection using ozone water and disinfection machine using ozone water - Google Patents

Method for disinfection using ozone water and disinfection machine using ozone water Download PDF

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Publication number
WO2016104335A1
WO2016104335A1 PCT/JP2015/085395 JP2015085395W WO2016104335A1 WO 2016104335 A1 WO2016104335 A1 WO 2016104335A1 JP 2015085395 W JP2015085395 W JP 2015085395W WO 2016104335 A1 WO2016104335 A1 WO 2016104335A1
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ozone
water
ozone water
disinfection
temperature
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PCT/JP2015/085395
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French (fr)
Japanese (ja)
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信吾 元森
正浩 菊池
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株式会社Ｉｈｉシバウラ
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases

Definitions

  • the present invention relates to an ozone water sterilizer that generates ozone water using raw water supplied from the outside as raw water and sterilizes an object to be sterilized in a disinfection tank using the generated ozone water. More specifically, the present invention relates to an ozone water disinfection method suitable for disinfecting medical devices such as endoscopes contaminated with tuberculosis bacteria using this type of ozone water disinfector.
  • an endoscope sterilizer that disinfects an endoscope is known.
  • tap water is supplied as raw water into a sterilization tank (disinfection tank)
  • ozone gas is injected into the raw water stored in the sterilization tank
  • ozone water is generated in the sterilization tank.
  • the endoscope to be sterilized disposed in the sterilization tank is sterilized with ozone water while circulating the ozone water in the sterilization tank.
  • the ozone water in the sterilization tank is discharged after removing ozone through an ozonolysis device.
  • the ozone water concentration is maintained at a constant concentration of about 0.5 ppm and the disinfection treatment is performed for a fixed processing time of about 5 minutes. ing.
  • tap water is used as it is as raw water for generating ozone water, ozone water having substantially the same temperature as tap water is generated and used for disinfection.
  • the ozone water disinfector in order to increase the ozone concentration of the generated ozone water, it is necessary to lengthen the ozone gas injection time for the raw water stored in the disinfection tank.
  • the ozone dissolution rate decreases, so it takes a long time to obtain the desired ozone concentration.
  • the temperature of tap water used as raw water in summer, the temperature of tap water used as raw water is often high, the dissolution rate of ozone decreases, and it takes a long time to increase the ozone concentration. As a result, the time required for one disinfection process becomes longer, and the working efficiency is greatly reduced.
  • the object of the present invention is to efficiently use ozone water from a normal ozone concentration generally used to a high ozone concentration capable of high-level disinfection using an ozone water disinfector.
  • the object is to propose an ozone water disinfection method capable of performing disinfection treatment.
  • an object of the present invention is to provide an ozone water disinfecting machine that can perform an effective disinfection process using ozone water from a normal ozone concentration to a high ozone concentration capable of high level disinfection.
  • the present invention generates ozone water using raw water supplied from the outside as raw water, and uses the generated ozone water to disinfect a disinfection target in a disinfection tank.
  • the ozone water disinfection method using the ozone water disinfector to be performed the ozone concentration of the ozone water is set to a value within a range from 0.3 ppm to 5 ppm, and the temperature of the ozone water is controlled to be equal to or lower than a preset temperature. It is characterized by.
  • ozone water having an ozone concentration including a concentration range of about 3 ppm or more that can surely kill M. tuberculosis is used.
  • the temperature of the ozone water is controlled to a predetermined temperature or lower. Therefore, when the temperature of tap water used as raw water is high in summer or the like, the tap water can be lowered to a temperature of 20 ° C. or lower, for example. As a result, high-concentration ozone water can be generated without requiring a long time. Therefore, it is possible to efficiently perform high-level disinfection of medical equipment such as an endoscope to which tuberculosis bacteria or the like are attached without significantly increasing the processing time.
  • the temperature of the ozone water is a value within a range from 0 ° C to 30 ° C.
  • a temperature below 0 ° C. is not preferable because the raw water freezes.
  • a temperature exceeding 30 ° C. it takes a long time to generate high-concentration ozone water, and when ozone water exceeding 30 ° C. is used, material deterioration may occur in the disinfection target. Absent.
  • the temperature of the ozone water it is desirable to control the temperature of the ozone water to 20 ° C. or lower. Thereby, material deterioration of the disinfection target object exposed to ozone water can be suppressed.
  • the treatment time of the disinfection treatment is a value within a range of 1 minute to 30 minutes.
  • the product of the ozone concentration and treatment time is a value within the range from 2 ppm ⁇ min to 20 ppm ⁇ min. It is desirable to set the combination of the ozone concentration and the treatment time.
  • the treatment time may be set to 5 minutes when the ozone water concentration is 3 ppm.
  • the temperature of the ozone water is set to a value of 20 ° C. or less
  • the treatment time of the disinfection treatment is set to a value within a range of 1 minute to 30 minutes
  • the ozone concentration and the treatment time It is desirable to set the combination of the ozone concentration and the treatment time so that the product of 2 becomes a value in the range from 2 ppm ⁇ min to 20 ppm ⁇ min.
  • ⁇ Disinfection using ozone water under such disinfection conditions is particularly suitable for endoscope disinfection.
  • the present invention relates to an ozone water disinfecting machine that generates ozone water using supply water supplied from the outside as raw water, and disinfects an object to be disinfected in the disinfection tank using the generated ozone water. And a concentration control unit capable of controlling the ozone concentration of the ozone water to a value within a range from 0.3 ppm to 5 ppm, and a temperature control unit capable of controlling the temperature of the ozone water. It is said.
  • the temperature control unit may control the temperature of the ozone water to a value within a range from 0 ° C to 30 ° C.
  • the temperature controller preferably controls the temperature of the ozone water to 20 ° C. or lower.
  • the ozone water disinfector of the present invention has a time control unit capable of adjusting the treatment time of the disinfection treatment with the ozone water in the disinfection tank to a value within the range of 1 minute to 30 minutes. desirable.
  • the product of the ozone concentration and the treatment time controlled by the concentration control unit and the time control unit is a value within a range from 2 ppm ⁇ min to 20 ppm ⁇ min.
  • the ozone water disinfector of the present invention preferably has an ozone gas generation unit that generates ozone gas and an ozone water generation storage unit that generates and stores ozone water supplied to the disinfection tank.
  • the concentration control unit may control the supply amount of ozone gas supplied from the ozone gas generation unit to the ozone water generation storage unit and the disinfection tank.
  • ozone water having a desired concentration can be generated in a necessary amount in advance. Therefore, compared to the case where ozone water generation time is included in the sterilization time as in the case of generating ozone water in the sterilization tank, it is possible to shorten the time for one sterilization, and the work efficiency of the ozone water sterilizer Can be improved.
  • the ozone water disinfecting machine of the present invention is stored in a water storage tank with respect to the ozone water generation and storage unit, with respect to the first raw water supply system that supplies raw water from the outside, and the ozone water generation and storage unit. It is desirable to have a second raw water supply system for supplying raw water controlled to a predetermined temperature.
  • the temperature control unit controls the supply amount of the raw water supplied to the ozone water generation and storage unit from each of the first and second raw water supply systems, thereby storing water in the ozone water generation and storage unit.
  • the temperature of the ozone water generated in the tank can be controlled.
  • the raw water whose temperature is controlled is directly added to the raw water supplied to the ozone water generation and storage unit without temperature control.
  • generation storage part can be shortened.
  • temperature control can be performed in a short time and at a low price compared to a general ozone water disinfector that does not perform temperature management.
  • the ozone water disinfector of the present invention is applied to an ozone water endoscope disinfector for disinfecting an endoscope.
  • the ozone water disinfectant of the present invention is not limited to the disinfection of endoscopes, but can of course be applied to disinfection of other medical devices and other instruments.
  • FIG. 1A is a front external perspective view showing an ozone water endoscope disinfecting apparatus according to this embodiment
  • FIG. 1B is a rear external perspective view thereof.
  • the display of the cold water unit and the ozonolysis device which are externally attached to the ozone water endoscope disinfector is omitted.
  • the endoscope which is the object of disinfection, is immersed in the disinfection tank filled with ozone water, and the ozone water is circulated in the disinfection tank and the ozone water is passed through the endoscope. By flowing through the inside, the endoscope is cleaned and disinfected.
  • the ozone water endoscope disinfector 1 includes, for example, a vertically long rectangular parallelepiped outer case 2 as a whole.
  • a lid 3 that can be opened upward with the rear edge as a center is attached.
  • the sterilization tank 4 disposed inside the outer case 2 opens upward, and the endoscope 5 that is the object of sterilization can be inserted and installed in the sterilization tank 4 from above. It is.
  • the front portion of the disinfection tank 4 in the exterior case 2 is a transparent window 6, and the state inside the disinfection tank 4 can be visually observed through the window 6 from the front.
  • a touch panel 7 as an operation input / display unit is disposed on the rear side of the lid 3 on the upper surface of the outer case 2.
  • the touch panel 7 serves as both a touch panel operation panel and a status display liquid crystal display panel.
  • processing such as disinfection is executed, and the progress status of the current work is displayed on the liquid crystal display panel.
  • a water flow confirmation window 8 is provided for visually confirming whether water is flowing normally during the disinfection process.
  • a power switch 11 and a power inlet 12 are arranged in parallel at the upper center portion of the back surface of the outer case 2.
  • a water supply port 14 for supplying tap water used as raw water for generating ozone water is disposed at a portion on one end side in the upper portion of the back surface.
  • a cold water supply port 15 is disposed below the water supply port 14.
  • Cold water used for adjusting the temperature of raw water for generating ozone water is supplied from the cold water unit 16 to the cold water supply port 15.
  • the cold water unit 16 cools tap water, generates cold water, and stores the cold water therein.
  • An oxygen supply port 17 to which oxygen for generating ozone is supplied is disposed at the other end side portion of the back surface of the outer case 2.
  • Oxygen is supplied to the oxygen supply port 17 from an oxygen cylinder (see FIG. 2) or from a hospital oxygen pipe in a hospital or the like.
  • a drain port 18 for discharging ozone water after being used for the disinfection treatment is disposed on the lower side of the back surface. The ozone water discharged from the drain outlet 18 after the disinfection process is completed is discharged through the ozone decomposer 19.
  • an exhaust port 20 is formed on the back surface of the exterior case 2 opposite to the drain port, and ozone gas emitted from the disinfection tank 4 is decomposed via a built-in ozone decomposition unit (see FIG. 2). It is discharged as oxygen gas.
  • FIG. 2 is a schematic configuration diagram of an ozone water endoscope disinfection system configured around the ozone water endoscope disinfector 1.
  • a disinfecting tank 4 for cleaning and disinfecting the endoscope 5 is arranged inside the ozone water endoscope disinfecting machine 1.
  • the sterilization tank 4 is supplied with ozone water 22 from an ozone water generation unit 21 (ozone water generation storage unit). For example, 20 liters of ozone water having a predetermined concentration is supplied.
  • the raw water for generating ozone water supply water supplied from the outside, usually tap water 23, is used.
  • the tap water 23 is supplied from the water supply port 14 to the ozone water generation tank 21a of the ozone water generation unit 21 through the filter 24 and the on-off valve 25 (first raw water supply system).
  • a water temperature meter 27 for detecting the temperature of the tap water 23 is attached to the water supply path.
  • the tap water 23 is supplied to the cold water unit 16, cooled to cold water 28 having a preset temperature, for example, lower than 20 ° C., for example, 5 ° C., and stored in the cold water unit 16. From the cold water unit 16, the cold water 28 can be supplied to the ozone water generation tank 21a through the on-off valve 29 as necessary (second raw water supply system).
  • the ozone water generation tank 21a when the tap water 23 is higher than the set temperature, the cold water 28 is supplied from the cold water unit 16, and the tap water 23 and the cold water 28 are mixed to generate ozone water at the set temperature. Raw water is generated and stored. When the tap water 23 is lower than the set temperature, the cold water 28 is not supplied. Thereby, raw water for ozone water generation at a temperature of 20 ° C. or lower is generated in the ozone water generation tank 21a.
  • the temperature of the ozone water 22 supplied into the disinfection tank 4 is not directly controlled.
  • the ozone water endoscope disinfector 1 is mostly used in a place where the environmental temperature is kept constant, such as in a hospital, and the temperature of the ozone water supplied to the disinfection tank 4 varies greatly. Very unlikely. Therefore, if the temperature of raw
  • the ozone gas 31 for generating ozone water is generated by the ozonizer 32 and supplied to the ozone water generating tank 21 a of the ozone water generating unit 21.
  • the ozonizer 32 generates ozone gas from oxygen supplied from an oxygen cylinder 33 which is an external oxygen supply source through the oxygen supply port 17.
  • the ozone water generation tank 21a of the ozone water generation unit 21 is a tank having a capacity substantially the same as the disinfection tank 4, for example, a 20 liter tank.
  • Ozone gas 31 is injected from the ozonizer 32 after the raw water of the set temperature has accumulated in the ozone water generation tank 21a. Thereby, ozone melt
  • the ozone concentration of the ozone water 22 in the ozone water generation tank 21a can be controlled to be a predetermined concentration.
  • the ozone water 22 When ozone water 22 having a set concentration is generated in the ozone water generation tank 21a, the ozone water 22 is supplied to the disinfection tank 4 via the ozone water supply pipe 34 and the supply pump 35.
  • the endoscope 5 that is the object to be sterilized is set in advance so as to be immersed in the ozone water 22 in the sterilization tank 4.
  • the endoscope 5 is disinfected while circulating the ozone water 22 in the disinfection tank 4 through the circulation pipe 36 and the circulation pump 37.
  • ozone water 22 in order to let ozone water 22 pass into the inside of the endoscope 5, a tube is connected to the air supply / water supply port and forceps port of the endoscope 5, and the inside is connected through these tubes. Ozone water flows through the inside of the endoscope 5.
  • the concentration of ozone water circulating through the disinfection tank 4 is measured by an ozone water concentration meter 38 attached to the circulation pipe 36.
  • the ozone gas 31 is supplied from the ozonizer 32 through the branch tube 39 for supplying ozone gas.
  • the ozone concentration of the ozone water 22 is maintained at the set concentration.
  • the ozone gas discharged from the disinfection tank 4 during the disinfection treatment is decomposed through the ozone decomposition unit 41 and becomes oxygen gas and is discharged outside through the exhaust port 20.
  • the ozone water 22 in the disinfection tank 4 can be discharged to a predetermined drain pipe 43 through the drain pipe 42 and the ozone decomposer 19.
  • the ozone decomposer 19 is filled with ozone decomposition products such as activated carbon and decomposes ozone contained in the discharged ozone water.
  • the cold water unit 16 is a unit externally attached to the ozone water endoscope disinfector 1 in this example, and can be connected and used as necessary. It is also possible to incorporate the cold water unit 16 into the ozone water endoscope disinfector 1.
  • the cold water unit 16 includes a cold water tank 61, to which tap water 23 is supplied as raw water for generating ozone water through a water supply pipe 62 and a filter 63.
  • the raw water stored in the cold water tank 61 is circulated through the chiller 65 by the circulation pump 64, whereby cold water 28 having a temperature lower than the set temperature, for example, 5 ° C. is obtained in the cold water tank 61.
  • the cold water unit 16 includes a control unit 66.
  • the controller 66 operates in conjunction with the sterilizer control unit 50.
  • the controller 66 can control the amount of stored water to be constant based on a liquid level sensor 67 attached to the cold water tank 61. Further, based on the measured value of the water temperature gauge 68 attached to the cold water tank 61, the water temperature of the cold water 28 in the cold water tank 61 can be controlled to a predetermined temperature, for example, 5 ° C.
  • the cold water tank 61 is a tank having a smaller capacity than the ozone water generation tank 21a, and is 10 liters, for example.
  • the drive control of each part of the ozone water endoscope disinfector 1 having the above-described configuration is performed by the disinfector control unit 50.
  • the sterilizer control unit 50 is configured mainly with a microcomputer, and by executing a program installed in advance, each part is driven and controlled to perform various operations.
  • the disinfector control unit 50 generates ozone water to be supplied to the disinfection tank 4, based on a default value or a setting input from the touch panel 7, and a concentration control unit 50 a that controls the concentration of the ozone water 22 in the disinfection tank 4 to the set concentration.
  • each unit is controlled by the following operation mode under the control of the disinfecting machine control unit 50. Works.
  • the disinfection conditions are such that the concentration of ozone water is 3 ppm and the treatment time is 5 minutes so that tuberculosis bacteria can be disinfected.
  • the water temperature is controlled to 20 ° C. or lower.
  • the cold water unit 16 attached to the ozone water endoscope sterilizer 1 starts a cold water generation operation and stores cold water of 5 ° C. in the cold water tank 61, for example.
  • the sterilizer control unit 50 starts an operation of taking tap water 23 whose temperature is not controlled as raw water for generating ozone water directly into the ozone water generation tank 21a of the ozone water generation unit 21 through the filter 24. To do. Moreover, based on the water temperature detected by the water temperature meter 27 arranged in the water supply path, the water temperature in the ozone water generation tank 21a is controlled to be 20 ° C. or lower. For example, when the temperature of the tap water 23 is higher than 20 ° C., the cold water 28 controlled to 5 ° C. is taken from the cold water unit 16 and the water temperature in the ozone water generation tank 21a is controlled to 20 ° C. .
  • the ozone gas 31 generated by the ozonizer 32 is taken into the ozone water generation tank 21a, and the ozone water 22 is stored in the ozone water generation tank 21a.
  • the generation operation is performed.
  • the concentration of the ozone water 22 in the ozone water generation tank 21a can be controlled to be around 3 ppm which is the set concentration.
  • the sterilizer control unit 50 supplies the ozone water 22 stored in the ozone water generation tank 21 a to the sterilization tank 4.
  • the circulation pump 37 is driven to start circulation of the ozone water 22.
  • the ozone water concentration measured by the ozone water concentration meter 38 is less than 3 ppm
  • the ozone gas 31 is introduced from the ozonizer 32 into the disinfecting tank 4 and the ozone concentration is adjusted to the set concentration. After the ozone concentration reaches 3 ppm, the disinfection process of the endoscope 5 is started.
  • the sterilization process is terminated, and a discharge operation for discharging the ozone water 22 from the sterilization tank 4 is performed.
  • the ozone water 22 of setting concentration and setting temperature is in the ozone water production
  • the disinfection treatment can be performed in an operation mode in which the temperature control of the ozone water is not performed.
  • temperature control is not performed when the ozone concentration is 0.5 ppm and the disinfection time is 5 minutes.
  • the ozone water endoscope sterilizer 1 is operated without attaching the cold water unit 16 to the ozone water endoscope sterilizer 1.
  • the ozone water endoscope disinfector 1 is operated without supplying the cold water from the cold water unit 16 (without supplying water from the second raw water supply system). That's fine.
  • the ozone water endoscope disinfector 1 includes the concentration control unit 50a, and the ozone concentration of ozone water used for disinfection is set to 3 ppm necessary for high-level disinfection that can surely kill tuberculosis bacteria. Can be increased.
  • the tap water 23 can be lowered to 20 ° C., for example, when the temperature of the tap water 23 used as raw water is high in summer.
  • high-concentration ozone water required for high-level disinfection can be generated in a shorter time compared to the case of generating high-temperature tap water. Therefore, it is possible to efficiently perform high-level disinfection of medical devices such as endoscopes without significantly increasing the processing time.
  • the temperature controller 50b controls the temperature of the ozone water to 20 ° C. Thereby, the adverse effect that the material to be disinfected is exposed to high-temperature ozone water can be prevented or suppressed.
  • ozone water having a predetermined concentration and a predetermined temperature used for disinfection is generated in advance in the ozone water generation tank 21a.
  • the disinfection time can be shortened by the time required for generating ozone water.
  • the cold water 28 is stored in the cold water tank 61 in advance.
  • the temperature of the generated ozone water 22 is controlled to be the set water temperature.
  • the disinfection treatment can be performed in a form (concentration, temperature, time) suitable for each object to be disinfected.
  • the ozone water concentration may be a value within the range of 0.3 ppm to 5 ppm
  • the treatment time may be a value within the range of 1 minute to 30 minutes.
  • the product of the ozone concentration and the treatment time corresponds to the bactericidal effect, it is desirable that these products have values in the range of 2 ppm ⁇ min to 20 ppm ⁇ min.
  • the combination of ozone concentration and treatment time so as to be within this range, it is possible to appropriately perform a wide range of disinfection from tuberculosis bacteria to general bacteria, and shorten the disinfection time. Can be planned.
  • the temperature of the ozone water be a value within the range from 0 ° C to 30 ° C.
  • a temperature below 0 ° C. is not preferable because the raw water freezes.
  • At a temperature exceeding 30 ° C. it takes a long time to generate high-concentration ozone water, and when high-concentration ozone water is used at a high temperature, there is a risk of material deterioration in the disinfection target. Because.
  • the ozone concentration generated in the ozone water generation tank 21a of the ozone water generation unit 21 is managed by the injection amount (injection time) of ozone gas.
  • the ozone concentration of the ozone water 22 generated in the ozone water generation tank 21a may be directly detected, and the ozone concentration may be controlled based on this.
  • the temperature of the ozone water in the ozone water generation tank 21a is controlled, but the temperature of the ozone water supplied into the disinfection tank 4 is not directly controlled.
  • the ozone water endoscope disinfector 1 is mostly used in a place where the environmental temperature is kept constant, such as in a hospital, and the temperature of the ozone water supplied to the disinfection tank 4 varies greatly. Very unlikely. Therefore, if the ozone water temperature produced

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Abstract

An endoscope disinfection machine (1) using ozone water according to the present invention uses ozone water to disinfect an endoscope (5) placed in a disinfection tank (4). The endoscope disinfection machine (1) injects ozone gas (31) from an ozonizer (32) into raw water having a temperature controlled at 20°C and generates high-concentration ozone water (22) capable of disinfecting Mycobacterium tuberculosis in an ozone-water generating unit (21). In disinfection treatment, the high-concentration ozone water (22) having a temperature of 20°C is supplied from an ozone-water generating tank (21a) to the disinfection tank (4), and the endoscope (5) set in the disinfection tank (4) is disinfected.

Description

オゾン水消毒方法およびオゾン水消毒機Ozone water disinfection method and ozone water disinfection machine
　本発明は、外部から供給される供給水を原水として用いてオゾン水を生成し、生成したオゾン水を用いて、消毒槽内において消毒対象物の消毒処理を行うオゾン水消毒機に関する。さらに詳しくは、この種のオゾン水消毒機を用いて、結核菌等で汚染された内視鏡等の医療機器類を消毒するのに適したオゾン水消毒方法に関する。 The present invention relates to an ozone water sterilizer that generates ozone water using raw water supplied from the outside as raw water and sterilizes an object to be sterilized in a disinfection tank using the generated ozone water. More specifically, the present invention relates to an ozone water disinfection method suitable for disinfecting medical devices such as endoscopes contaminated with tuberculosis bacteria using this type of ozone water disinfector.
　オゾン水消毒機としては、特許文献１に開示されているように、内視鏡を消毒する内視鏡殺菌装置が知られている。内視鏡殺菌装置では、殺菌槽（消毒槽）内に水道水を原水として供給し、殺菌槽に溜めた原水にオゾンガスを注入して、殺菌槽内においてオゾン水を生成している。オゾン水のオゾン濃度が所定濃度に達した後は、殺菌槽内においてオゾン水を循環させながら殺菌槽内に配置した殺菌対象の内視鏡をオゾン水で殺菌処理している。殺菌処理後は殺菌槽内のオゾン水を、オゾン分解器を通してオゾンを除去した後に排出している。 As an ozone water sterilizer, as disclosed in Patent Document 1, an endoscope sterilizer that disinfects an endoscope is known. In the endoscope sterilization apparatus, tap water is supplied as raw water into a sterilization tank (disinfection tank), ozone gas is injected into the raw water stored in the sterilization tank, and ozone water is generated in the sterilization tank. After the ozone concentration of the ozone water reaches a predetermined concentration, the endoscope to be sterilized disposed in the sterilization tank is sterilized with ozone water while circulating the ozone water in the sterilization tank. After the sterilization treatment, the ozone water in the sterilization tank is discharged after removing ozone through an ozonolysis device.
特開２０１４－３３７９４号公報JP 2014-33794 A
　従来における内視鏡殺菌装置等のオゾン水消毒機においては、一般的に、オゾン水濃度を０．５ｐｐｍ程度の一定濃度に維持した状態で、５分間程度の一定の処理時間で消毒処理を行っている。また、オゾン水生成用の原水として水道水がそのまま用いられるので、水道水と略同一の温度のオゾン水が生成され、消毒に用いられている。 In conventional ozone water disinfectors such as endoscope sterilizers, in general, the ozone water concentration is maintained at a constant concentration of about 0.5 ppm and the disinfection treatment is performed for a fixed processing time of about 5 minutes. ing. Moreover, since tap water is used as it is as raw water for generating ozone water, ozone water having substantially the same temperature as tap water is generated and used for disinfection.
　内視鏡等の医療機器類の消毒においては、高水準消毒と呼ばれる結核菌を死滅させることの可能な高い消毒効果が要求される場合がある。しかしながら、従来においては、オゾン水消毒機を用いた高水準消毒については提案されていない。 In disinfection of medical equipment such as endoscopes, there is a case where a high disinfection effect capable of killing tuberculosis bacteria called high-level disinfection is required. However, conventionally, there has been no proposal for high-level disinfection using an ozone water disinfector.
　オゾン水消毒機において、生成されるオゾン水のオゾン濃度を高めるためには、消毒槽に貯留した原水に対するオゾンガスの注入時間を長くする必要がある。特に、原水の温度が高い場合には、オゾンの溶解率が低下するので、所望のオゾン濃度が得られるまでに長時間を要する。例えば、夏場には原水として使用している水道水の温度が高いことが多く、オゾンの溶解速度が低下し、オゾン濃度を上げるために長時間を要する。この結果、１回の消毒処理のための所要時間が長くなり、作業効率が大幅に低下する。 In the ozone water disinfector, in order to increase the ozone concentration of the generated ozone water, it is necessary to lengthen the ozone gas injection time for the raw water stored in the disinfection tank. In particular, when the temperature of the raw water is high, the ozone dissolution rate decreases, so it takes a long time to obtain the desired ozone concentration. For example, in summer, the temperature of tap water used as raw water is often high, the dissolution rate of ozone decreases, and it takes a long time to increase the ozone concentration. As a result, the time required for one disinfection process becomes longer, and the working efficiency is greatly reduced.
　本発明の課題は、このような点に鑑みて、オゾン水消毒機により、一般的に使用される通常のオゾン濃度から高水準消毒が可能な高オゾン濃度までのオゾン水を用いて、効率良く消毒処理を行うことのできるオゾン水消毒方法を提案することにある。 In view of these points, the object of the present invention is to efficiently use ozone water from a normal ozone concentration generally used to a high ozone concentration capable of high-level disinfection using an ozone water disinfector. The object is to propose an ozone water disinfection method capable of performing disinfection treatment.
　また、本発明の課題は、通常のオゾン濃度から高水準消毒が可能な高オゾン濃度までのオゾン水を用いて、効率良く消毒処理を行うことのできるオゾン水消毒機を提供することにある。 Also, an object of the present invention is to provide an ozone water disinfecting machine that can perform an effective disinfection process using ozone water from a normal ozone concentration to a high ozone concentration capable of high level disinfection.
　上記の課題を解決するために、本発明は、外部から供給される供給水を原水として用い
てオゾン水を生成し、生成したオゾン水を用いて、消毒槽内において消毒対象物の消毒処理を行うオゾン水消毒機を用いたオゾン水消毒方法において、前記オゾン水のオゾン濃度を、０．３ｐｐｍから５ｐｐｍまでの範囲内の値とし、前記オゾン水の温度を予め設定した温度以下に制御することを特徴としている。 In order to solve the above problem, the present invention generates ozone water using raw water supplied from the outside as raw water, and uses the generated ozone water to disinfect a disinfection target in a disinfection tank. In the ozone water disinfection method using the ozone water disinfector to be performed, the ozone concentration of the ozone water is set to a value within a range from 0.3 ppm to 5 ppm, and the temperature of the ozone water is controlled to be equal to or lower than a preset temperature. It is characterized by.
　本発明のオゾン水消毒方法では、結核菌を確実に死滅させることのできる３ｐｐｍ程度以上の濃度範囲を包含するオゾン濃度のオゾン水を使用する。また、オゾン水の温度を所定の温度以下に制御する。したがって、夏場等において原水として用いる水道水の温度が高い場合に、当該水道水を例えば２０℃或いは、それ以下の温度に下げることができる。この結果、高濃度のオゾン水を、長時間を要することなく生成できる。よって、結核菌等が付着した内視鏡等の医療機器類の高水準消毒を、処理時間を大幅に長くすることなく、効率良く行うことが可能になる。 In the ozone water disinfection method of the present invention, ozone water having an ozone concentration including a concentration range of about 3 ppm or more that can surely kill M. tuberculosis is used. Further, the temperature of the ozone water is controlled to a predetermined temperature or lower. Therefore, when the temperature of tap water used as raw water is high in summer or the like, the tap water can be lowered to a temperature of 20 ° C. or lower, for example. As a result, high-concentration ozone water can be generated without requiring a long time. Therefore, it is possible to efficiently perform high-level disinfection of medical equipment such as an endoscope to which tuberculosis bacteria or the like are attached without significantly increasing the processing time.
　本発明のオゾン水消毒方法において、前記オゾン水の温度を、０℃から３０℃までの範囲内の値とすることが望ましい。０℃を下回る温度では原水が凍結するので好ましくない。３０℃を超える温度では、高濃度のオゾン水を生成するために長時間を要し、また、３０℃を超えるオゾン水を用いる場合には消毒対象物に材料劣化が生じるおそれがあるので、好ましくない。 In the ozone water disinfection method of the present invention, it is desirable that the temperature of the ozone water is a value within a range from 0 ° C to 30 ° C. A temperature below 0 ° C. is not preferable because the raw water freezes. At a temperature exceeding 30 ° C., it takes a long time to generate high-concentration ozone water, and when ozone water exceeding 30 ° C. is used, material deterioration may occur in the disinfection target. Absent.
　特に、前記オゾン水の温度を２０℃以下に制御することが望ましい。これにより、オゾン水に晒される消毒対象物の材料劣化を抑制できる。 In particular, it is desirable to control the temperature of the ozone water to 20 ° C. or lower. Thereby, material deterioration of the disinfection target object exposed to ozone water can be suppressed.
　本発明のオゾン水消毒方法において、前記消毒処理の処理時間を、１分から３０分までの範囲内の値とすることが望ましい。オゾン水のオゾン濃度と消毒処理の処理時間との適切な組み合わせを採用することにより、消毒対象物のそれぞれに適した形態（濃度、温度、時間）で消毒処理を行うことができる。 In the ozone water disinfection method of the present invention, it is desirable that the treatment time of the disinfection treatment is a value within a range of 1 minute to 30 minutes. By adopting an appropriate combination of the ozone concentration of ozone water and the treatment time of the disinfection treatment, the disinfection treatment can be performed in a form (concentration, temperature, time) suitable for each of the disinfection objects.
　この場合、オゾン水による消毒効果は、オゾン濃度と処理時間との積にほぼ比例するので、前記オゾン濃度と前記処理時間との積が、２ｐｐｍ・ｍｉｎから２０ｐｐｍ・ｍｉｎまでの範囲内の値となるように、前記オゾン濃度と前記処理時間の組み合わせを設定することが望ましい。 In this case, since the disinfection effect by ozone water is substantially proportional to the product of ozone concentration and treatment time, the product of the ozone concentration and treatment time is a value within the range from 2 ppm · min to 20 ppm · min. It is desirable to set the combination of the ozone concentration and the treatment time.
　このようにして、オゾン濃度と処理時間の組み合わせを設定することにより、結核菌から一般の雑菌までの広範囲の消毒を適切に行うことができ、また、消毒時間の短縮化も図ることができる。例えば、結核菌を死滅させるためには、オゾン水濃度を３ｐｐｍとした場合には、処理時間を５分間に設定すればよい。 Thus, by setting the combination of ozone concentration and treatment time, a wide range of disinfection from tuberculosis bacteria to general miscellaneous bacteria can be appropriately performed, and the disinfection time can be shortened. For example, in order to kill M. tuberculosis, the treatment time may be set to 5 minutes when the ozone water concentration is 3 ppm.
　本発明のオゾン水消毒方法において、前記オゾン水の温度を、２０℃以下の値とし、前記消毒処理の処理時間を、１分から３０分までの範囲内の値とし、前記オゾン濃度と前記処理時間の積が、２ｐｐｍ・ｍｉｎから２０ｐｐｍ・ｍｉｎまでの範囲内の値となるように、前記オゾン濃度と前記処理時間の組み合わせを設定することが望ましい。 In the ozone water disinfection method of the present invention, the temperature of the ozone water is set to a value of 20 ° C. or less, the treatment time of the disinfection treatment is set to a value within a range of 1 minute to 30 minutes, the ozone concentration and the treatment time It is desirable to set the combination of the ozone concentration and the treatment time so that the product of 2 becomes a value in the range from 2 ppm · min to 20 ppm · min.
　このような消毒条件の下でのオゾン水を用いた消毒は、特に、内視鏡の消毒に適している。 消 Disinfection using ozone water under such disinfection conditions is particularly suitable for endoscope disinfection.
　次に、本発明は、外部から供給される供給水を原水として用いてオゾン水を生成し、生成したオゾン水を用いて、消毒槽内において消毒対象物の消毒処理を行うオゾン水消毒機において、前記オゾン水のオゾン濃度を、０．３ｐｐｍから５ｐｐｍまでの範囲内の値に制御可能な濃度制御部と、前記オゾン水の温度を制御可能な温度制御部とを有していることを特徴としている。 Next, the present invention relates to an ozone water disinfecting machine that generates ozone water using supply water supplied from the outside as raw water, and disinfects an object to be disinfected in the disinfection tank using the generated ozone water. And a concentration control unit capable of controlling the ozone concentration of the ozone water to a value within a range from 0.3 ppm to 5 ppm, and a temperature control unit capable of controlling the temperature of the ozone water. It is said.
　前記温度制御部は、前記オゾン水の温度を、０℃から３０℃までの範囲内の値に制御可能とすればよい。特に、前記温度制御部は、前記オゾン水の温度を２０℃以下に制御することが望ましい。 The temperature control unit may control the temperature of the ozone water to a value within a range from 0 ° C to 30 ° C. In particular, the temperature controller preferably controls the temperature of the ozone water to 20 ° C. or lower.
　本発明のオゾン水消毒機は、前記消毒槽内での前記オゾン水による消毒処理の処理時間を、１分から３０分までの範囲内の値に調節可能な時間制御部を有していることが望ましい。 The ozone water disinfector of the present invention has a time control unit capable of adjusting the treatment time of the disinfection treatment with the ozone water in the disinfection tank to a value within the range of 1 minute to 30 minutes. desirable.
　この場合、前記濃度制御部および前記時間制御部によってそれぞれ制御される前記オゾン濃度と前記処理時間との積が、２ｐｐｍ・ｍｉｎから２０ｐｐｍ・ｍｉｎまでの範囲内の値であることが望ましい。 In this case, it is desirable that the product of the ozone concentration and the treatment time controlled by the concentration control unit and the time control unit is a value within a range from 2 ppm · min to 20 ppm · min.
　次に、本発明のオゾン水消毒機は、オゾンガスを生成するオゾンガス生成部と、前記消毒槽に供給されるオゾン水を生成して貯留するオゾン水生成貯留部とを有していることが望ましい。この場合には、前記濃度制御部は、前記オゾンガス生成部から、前記オゾン水生成貯留部および前記消毒槽に供給されるオゾンガスの供給量を制御すればよい。 Next, the ozone water disinfector of the present invention preferably has an ozone gas generation unit that generates ozone gas and an ozone water generation storage unit that generates and stores ozone water supplied to the disinfection tank. . In this case, the concentration control unit may control the supply amount of ozone gas supplied from the ozone gas generation unit to the ozone water generation storage unit and the disinfection tank.
　オゾンガス生成部からオゾン水生成貯留部にオゾンガスを供給することにより、所望濃度のオゾン水を必要量だけ予め生成しておくことができる。したがって、消毒槽内においてオゾン水を生成する場合のように、消毒時間にオゾン水生成時間が含まれる場合に比べて、１回の消毒時間を短縮することができ、オゾン水消毒機の作業効率を向上できる。 By supplying ozone gas from the ozone gas generating unit to the ozone water generating and storing unit, ozone water having a desired concentration can be generated in a necessary amount in advance. Therefore, compared to the case where ozone water generation time is included in the sterilization time as in the case of generating ozone water in the sterilization tank, it is possible to shorten the time for one sterilization, and the work efficiency of the ozone water sterilizer Can be improved.
　また、本発明のオゾン水消毒機は、前記オゾン水生成貯留部に対して、外部から原水を供給する第１原水供給系と、前記オゾン水生成貯留部に対して、貯水タンクに貯留されている所定温度に制御された原水を供給する第２原水供給系とを有していることが望ましい。この場合には、前記温度制御部は、前記第１、第２原水供給系のそれぞれから前記オゾン水生成貯留部に供給される原水の供給量を制御することで、オゾン水生成貯留部の貯水タンク内に生成されるオゾン水の温度を制御することができる。 Moreover, the ozone water disinfecting machine of the present invention is stored in a water storage tank with respect to the ozone water generation and storage unit, with respect to the first raw water supply system that supplies raw water from the outside, and the ozone water generation and storage unit. It is desirable to have a second raw water supply system for supplying raw water controlled to a predetermined temperature. In this case, the temperature control unit controls the supply amount of the raw water supplied to the ozone water generation and storage unit from each of the first and second raw water supply systems, thereby storing water in the ozone water generation and storage unit. The temperature of the ozone water generated in the tank can be controlled.
　温度が制御された原水が、温度制御されずに直接にオゾン水生成貯留部に供給される原水に加えられる。これにより、オゾン水生成貯留部において生成されるオゾン水の温度制御に必要な時間の短縮化を図ることができる。また、温度管理を行っていない一般的なオゾン水消毒機に比べて、温度制御を短時間で廉価に行うことができる。 The raw water whose temperature is controlled is directly added to the raw water supplied to the ozone water generation and storage unit without temperature control. Thereby, the time required for temperature control of the ozone water produced | generated in an ozone water production | generation storage part can be shortened. In addition, temperature control can be performed in a short time and at a low price compared to a general ozone water disinfector that does not perform temperature management.
本発明を適用したオゾン水内視鏡消毒機の正面側の外観斜視図および背面側の外観斜視図である。It is the external appearance perspective view of the front side of the ozone water endoscope disinfection machine to which this invention is applied, and the external appearance perspective view of the back side. 図１のオゾン水内視鏡消毒機の概略構成図である。It is a schematic block diagram of the ozone water endoscope disinfection machine of FIG.
　以下に、図面を参照して、本発明の実施の形態を説明する。なお、以下の実施の形態は本発明のオゾン水消毒機を内視鏡を消毒するためのオゾン水内視鏡消毒機に適用したものである。本発明のオゾン水消毒機は内視鏡の消毒に限定されるものではなく、他の医療機器類、その他の器具の消毒にも適用可能なことは勿論である。 Embodiments of the present invention will be described below with reference to the drawings. In the following embodiments, the ozone water disinfector of the present invention is applied to an ozone water endoscope disinfector for disinfecting an endoscope. The ozone water disinfectant of the present invention is not limited to the disinfection of endoscopes, but can of course be applied to disinfection of other medical devices and other instruments.
　図１（ａ）は本実施の形態に係るオゾン水内視鏡消毒機を示す正面側の外観斜視図であり、図１（ｂ）はその背面側の外観斜視図である。なお、図１（ｂ）においては、オゾン水内視鏡消毒機に外付けされている冷水ユニットおよびオゾン分解器の表示を省略してある。オゾン水内視鏡消毒機では、オゾン水を満たした消毒槽の内部に、消毒対象物である
内視鏡を浸漬し、消毒槽内においてオゾン水を循環させると共に、オゾン水を内視鏡の内部を通して流すことにより、内視鏡の洗浄・消毒が行なわれる。 FIG. 1A is a front external perspective view showing an ozone water endoscope disinfecting apparatus according to this embodiment, and FIG. 1B is a rear external perspective view thereof. In addition, in FIG.1 (b), the display of the cold water unit and the ozonolysis device which are externally attached to the ozone water endoscope disinfector is omitted. In the ozone water endoscope disinfection machine, the endoscope, which is the object of disinfection, is immersed in the disinfection tank filled with ozone water, and the ozone water is circulated in the disinfection tank and the ozone water is passed through the endoscope. By flowing through the inside, the endoscope is cleaned and disinfected.
　図１を参照して説明すると、オゾン水内視鏡消毒機１は、例えば、全体として縦長の直方体形状の外装ケース２を備えている。外装ケース２の上面には、後端縁を中心として上方に開けることのできる蓋３が取り付けられている。蓋３を開けると、外装ケース２の内部に配置されている消毒槽４が上方に開口し、消毒対象物である内視鏡５を、上方から消毒槽４に挿入して設置することが可能である。外装ケース２における消毒槽４の前面部分は透明な窓６となっており、前方から窓６を通して、消毒槽４内の状態を目視可能となっている。 Referring to FIG. 1, the ozone water endoscope disinfector 1 includes, for example, a vertically long rectangular parallelepiped outer case 2 as a whole. On the upper surface of the outer case 2, a lid 3 that can be opened upward with the rear edge as a center is attached. When the lid 3 is opened, the sterilization tank 4 disposed inside the outer case 2 opens upward, and the endoscope 5 that is the object of sterilization can be inserted and installed in the sterilization tank 4 from above. It is. The front portion of the disinfection tank 4 in the exterior case 2 is a transparent window 6, and the state inside the disinfection tank 4 can be visually observed through the window 6 from the front.
　外装ケース２の上面における蓋３の後側の部分には、操作入力・表示部としてのタッチパネル７が配置されている。タッチパネル７は、タッチパネル操作盤と状態表示用の液晶表示盤を兼用している。タッチパネル７に表示された作業内容にタッチすることにより、消毒等の処理が実行され、液晶表示盤には現在の作業の進行状態等が表示される。タッチパネル７の側方には、消毒処理中に水が正常に流れているか否かを、目視により確認するための水流確認窓８が配置されている。 A touch panel 7 as an operation input / display unit is disposed on the rear side of the lid 3 on the upper surface of the outer case 2. The touch panel 7 serves as both a touch panel operation panel and a status display liquid crystal display panel. By touching the work content displayed on the touch panel 7, processing such as disinfection is executed, and the progress status of the current work is displayed on the liquid crystal display panel. On the side of the touch panel 7, a water flow confirmation window 8 is provided for visually confirming whether water is flowing normally during the disinfection process.
　外装ケース２の背面の上側中央の部位には、電源スイッチ１１および電源インレット１２が並列配置されている。背面の上側部分における一方の端側の部位には、オゾン水生成のための原水として用いる水道水を供給するための給水口１４が配置されている。給水口１４の下側には冷水供給口１５が配置されている。冷水供給口１５には、オゾン水生成用の原水の水温調整のために用いる冷水が、冷水ユニット１６から供給される。冷水ユニット１６は水道水を冷却して冷水を生成して、その内部に貯留する。 A power switch 11 and a power inlet 12 are arranged in parallel at the upper center portion of the back surface of the outer case 2. A water supply port 14 for supplying tap water used as raw water for generating ozone water is disposed at a portion on one end side in the upper portion of the back surface. A cold water supply port 15 is disposed below the water supply port 14. Cold water used for adjusting the temperature of raw water for generating ozone water is supplied from the cold water unit 16 to the cold water supply port 15. The cold water unit 16 cools tap water, generates cold water, and stores the cold water therein.
　外装ケース２の背面における他方の端側の部位には、オゾン生成のための酸素が供給される酸素供給口１７が配置されている。酸素供給口１７には、酸素ボンベ（図２参照）あるいは、病院内等においては院内酸素配管から酸素が供給される。背面の下方の側の部分には、消毒処理に使用した後のオゾン水を排出するための排水口１８が配置されている。消毒処理終了後に排水口１８から排出されるオゾン水はオゾン分解器１９を介して排出される。また、外装ケース２の背面における排水口とは反対側の部位には、排気口２０が形成されており、消毒槽４から出るオゾンガスが内蔵のオゾン分解ユニット（図２参照）を介して分解されて酸素ガスとなって排出される。 An oxygen supply port 17 to which oxygen for generating ozone is supplied is disposed at the other end side portion of the back surface of the outer case 2. Oxygen is supplied to the oxygen supply port 17 from an oxygen cylinder (see FIG. 2) or from a hospital oxygen pipe in a hospital or the like. A drain port 18 for discharging ozone water after being used for the disinfection treatment is disposed on the lower side of the back surface. The ozone water discharged from the drain outlet 18 after the disinfection process is completed is discharged through the ozone decomposer 19. Further, an exhaust port 20 is formed on the back surface of the exterior case 2 opposite to the drain port, and ozone gas emitted from the disinfection tank 4 is decomposed via a built-in ozone decomposition unit (see FIG. 2). It is discharged as oxygen gas.
　図２は、オゾン水内視鏡消毒機１を中心に構成されるオゾン水内視鏡消毒システムの概略構成図である。オゾン水内視鏡消毒機１の内部には、内視鏡５の洗浄・消毒を行う消毒槽４が配置されている。消毒槽４には、オゾン水生成ユニット２１（オゾン水生成貯留部）からオゾン水２２が供給される。例えば、２０リットルの所定濃度のオゾン水が供給される。 FIG. 2 is a schematic configuration diagram of an ozone water endoscope disinfection system configured around the ozone water endoscope disinfector 1. Inside the ozone water endoscope disinfecting machine 1, a disinfecting tank 4 for cleaning and disinfecting the endoscope 5 is arranged. The sterilization tank 4 is supplied with ozone water 22 from an ozone water generation unit 21 (ozone water generation storage unit). For example, 20 liters of ozone water having a predetermined concentration is supplied.
　オゾン水生成用の原水には、外部から供給される供給水、通常は水道水２３が用いられる。水道水２３は、給水口１４からフィルタ２４および開閉弁２５を介してオゾン水生成ユニット２１のオゾン水生成タンク２１ａに供給される（第１原水供給系）。給水経路には、水道水２３の温度を検出するための水温計２７が取り付けられている。 As the raw water for generating ozone water, supply water supplied from the outside, usually tap water 23, is used. The tap water 23 is supplied from the water supply port 14 to the ozone water generation tank 21a of the ozone water generation unit 21 through the filter 24 and the on-off valve 25 (first raw water supply system). A water temperature meter 27 for detecting the temperature of the tap water 23 is attached to the water supply path.
　また、水道水２３は冷水ユニット１６に供給され、予め設定されている設定温度、例えば２０℃よりも低温、例えば５℃の冷水２８に冷却されて冷水ユニット１６に貯留される。冷水ユニット１６からは、必要に応じて開閉弁２９を介して、冷水２８がオゾン水生成タンク２１ａに供給可能である（第２原水供給系）。 Further, the tap water 23 is supplied to the cold water unit 16, cooled to cold water 28 having a preset temperature, for example, lower than 20 ° C., for example, 5 ° C., and stored in the cold water unit 16. From the cold water unit 16, the cold water 28 can be supplied to the ozone water generation tank 21a through the on-off valve 29 as necessary (second raw water supply system).
　オゾン水生成タンク２１ａにおいては、水道水２３が設定温度よりも高い場合には、冷水ユニット１６から冷水２８が供給され、水道水２３と冷水２８が混合して、設定温度のオゾン水生成用の原水が生成され、貯留される。水道水２３が設定温度よりも低い場合には冷水２８の供給は行われない。これにより、２０℃あるいはそれよりも低い温度のオゾン水生成用の原水がオゾン水生成タンク２１ａ内において生成される。 In the ozone water generation tank 21a, when the tap water 23 is higher than the set temperature, the cold water 28 is supplied from the cold water unit 16, and the tap water 23 and the cold water 28 are mixed to generate ozone water at the set temperature. Raw water is generated and stored. When the tap water 23 is lower than the set temperature, the cold water 28 is not supplied. Thereby, raw water for ozone water generation at a temperature of 20 ° C. or lower is generated in the ozone water generation tank 21a.
　なお、本例では、消毒槽４内に供給されたオゾン水２２の温度を直接には制御していない。一般的に、オゾン水内視鏡消毒機１は院内等の環境温度が一定に保持される場所で使用される場合が殆どであり、消毒槽４に供給されたオゾン水温度が大幅に変動する可能性が極めて低い。よって、原水の温度を管理すれば、実質的に消毒槽４内のオゾン水温度を管理できる。勿論、消毒槽４内において、直接に、水温計等によってオゾン水温度を検出して、温度制御を行うようにすることも可能である。 In this example, the temperature of the ozone water 22 supplied into the disinfection tank 4 is not directly controlled. In general, the ozone water endoscope disinfector 1 is mostly used in a place where the environmental temperature is kept constant, such as in a hospital, and the temperature of the ozone water supplied to the disinfection tank 4 varies greatly. Very unlikely. Therefore, if the temperature of raw | natural water is managed, the ozone water temperature in the disinfection tank 4 can be managed substantially. Of course, in the sterilization tank 4, it is also possible to directly control the temperature by detecting the ozone water temperature with a water thermometer or the like.
　一方、オゾン水生成用のオゾンガス３１は、オゾナイザ３２によって生成されて、オゾン水生成ユニット２１のオゾン水生成タンク２１ａに供給される。オゾナイザ３２は、外部の酸素供給源である酸素ボンベ３３から酸素供給口１７を介して供給される酸素からオゾンガスを生成する。 On the other hand, the ozone gas 31 for generating ozone water is generated by the ozonizer 32 and supplied to the ozone water generating tank 21 a of the ozone water generating unit 21. The ozonizer 32 generates ozone gas from oxygen supplied from an oxygen cylinder 33 which is an external oxygen supply source through the oxygen supply port 17.
　オゾン水生成ユニット２１のオゾン水生成タンク２１ａは、消毒槽４と略同程度の容量、例えば２０リットルのタンクである。オゾン水生成タンク２１ａに、設定温度の原水が溜まった後に、オゾナイザ３２からオゾンガス３１が注入される。これにより、原水にオゾンが溶け込み、所定濃度のオゾン水２２が生成される。 The ozone water generation tank 21a of the ozone water generation unit 21 is a tank having a capacity substantially the same as the disinfection tank 4, for example, a 20 liter tank. Ozone gas 31 is injected from the ozonizer 32 after the raw water of the set temperature has accumulated in the ozone water generation tank 21a. Thereby, ozone melt | dissolves in raw | natural water and the ozone water 22 of predetermined concentration is produced | generated.
　オゾン水生成タンク２１ａ内へのオゾンガス３１の注入量（注入時間）を制御することにより、オゾン水生成タンク２１ａ内のオゾン水２２のオゾン濃度が所定濃度となるように制御できる。 By controlling the injection amount (injection time) of the ozone gas 31 into the ozone water generation tank 21a, the ozone concentration of the ozone water 22 in the ozone water generation tank 21a can be controlled to be a predetermined concentration.
　オゾン水生成タンク２１ａ内に設定濃度のオゾン水２２が生成されると、オゾン水２２は、オゾン水供給管３４および供給ポンプ３５を介して、消毒槽４に供給される。消毒槽４内には、予め、消毒対象物である内視鏡５が消毒槽４内のオゾン水２２に浸漬可能な状態にセットされる。 When ozone water 22 having a set concentration is generated in the ozone water generation tank 21a, the ozone water 22 is supplied to the disinfection tank 4 via the ozone water supply pipe 34 and the supply pump 35. In the sterilization tank 4, the endoscope 5 that is the object to be sterilized is set in advance so as to be immersed in the ozone water 22 in the sterilization tank 4.
　消毒処理においては、循環用配管３６および循環ポンプ３７を介して、消毒槽４内のオゾン水２２を循環させながら、内視鏡５の消毒を行う。なお、図示は省略してあるが、内視鏡５の内部にオゾン水２２を通すために、内視鏡５の送気送水口、鉗子口にチューブを接続し、これらのチューブを介して内視鏡５の内部を通してオゾン水が流れる。 In the disinfection treatment, the endoscope 5 is disinfected while circulating the ozone water 22 in the disinfection tank 4 through the circulation pipe 36 and the circulation pump 37. In addition, although illustration is abbreviate | omitted, in order to let ozone water 22 pass into the inside of the endoscope 5, a tube is connected to the air supply / water supply port and forceps port of the endoscope 5, and the inside is connected through these tubes. Ozone water flows through the inside of the endoscope 5.
　消毒槽４を循環するオゾン水の濃度は、循環用配管３６に取り付けたオゾン水濃度計３８によって測定される。測定されたオゾン水２２の濃度が設定濃度よりも低い場合には、オゾナイザ３２から、オゾンガス供給用分岐管３９を介して、オゾンガス３１が供給される。これにより、オゾン水２２のオゾン濃度が設定濃度に維持される。また、消毒処理中において消毒槽４から排出されるオゾンガスは、オゾン分解ユニット４１を介して分解されて、酸素ガスとなって排気口２０から外部に排出される。 The concentration of ozone water circulating through the disinfection tank 4 is measured by an ozone water concentration meter 38 attached to the circulation pipe 36. When the measured concentration of the ozone water 22 is lower than the set concentration, the ozone gas 31 is supplied from the ozonizer 32 through the branch tube 39 for supplying ozone gas. Thereby, the ozone concentration of the ozone water 22 is maintained at the set concentration. Further, the ozone gas discharged from the disinfection tank 4 during the disinfection treatment is decomposed through the ozone decomposition unit 41 and becomes oxygen gas and is discharged outside through the exhaust port 20.
　消毒処理が終了した後は、消毒槽４のオゾン水２２は、排水管４２およびオゾン分解器１９を介して所定の排水配管４３に排出可能となっている。オゾン分解器１９は、活性炭等のオゾン分解物が充填されており、排出されるオゾン水に含まれているオゾンを分解する。 After the disinfection treatment is completed, the ozone water 22 in the disinfection tank 4 can be discharged to a predetermined drain pipe 43 through the drain pipe 42 and the ozone decomposer 19. The ozone decomposer 19 is filled with ozone decomposition products such as activated carbon and decomposes ozone contained in the discharged ozone water.
　ここで、冷水ユニット１６は、本例では、オゾン水内視鏡消毒機１に外付けされるユニ
ットであり、必要に応じて接続して使用可能である。冷水ユニット１６をオゾン水内視鏡消毒機１の内部に組み込むことも可能である。冷水ユニット１６は冷水タンク６１を備え、ここには、オゾン水生成用の原水として、水道水２３が給水管６２およびフィルタ６３を介して供給される。冷水タンク６１に貯留した原水を、循環ポンプ６４によって、チラー６５を介して循環させることにより、設定温度よりも低温、例えば５℃の冷水２８が冷水タンク６１内に得られる。 Here, the cold water unit 16 is a unit externally attached to the ozone water endoscope disinfector 1 in this example, and can be connected and used as necessary. It is also possible to incorporate the cold water unit 16 into the ozone water endoscope disinfector 1. The cold water unit 16 includes a cold water tank 61, to which tap water 23 is supplied as raw water for generating ozone water through a water supply pipe 62 and a filter 63. The raw water stored in the cold water tank 61 is circulated through the chiller 65 by the circulation pump 64, whereby cold water 28 having a temperature lower than the set temperature, for example, 5 ° C. is obtained in the cold water tank 61.
　冷水ユニット１６は制御部６６を備えている。制御部６６は消毒機制御ユニット５０と連動して動作する。制御部６６は、冷水タンク６１に取り付けた液面センサ６７に基づき貯留水量を一定に制御可能である。また、冷水タンク６１に取り付けた水温計６８の測定値に基づき、冷水タンク６１内の冷水２８の水温を所定の温度、例えば５℃に制御可能である。冷水タンク６１は、オゾン水生成タンク２１ａに比べて小容量のタンクであり、例えば、１０リットルである。 The cold water unit 16 includes a control unit 66. The controller 66 operates in conjunction with the sterilizer control unit 50. The controller 66 can control the amount of stored water to be constant based on a liquid level sensor 67 attached to the cold water tank 61. Further, based on the measured value of the water temperature gauge 68 attached to the cold water tank 61, the water temperature of the cold water 28 in the cold water tank 61 can be controlled to a predetermined temperature, for example, 5 ° C. The cold water tank 61 is a tank having a smaller capacity than the ozone water generation tank 21a, and is 10 liters, for example.
　上記構成のオゾン水内視鏡消毒機１の各部の駆動制御は、消毒機制御ユニット５０により行われる。例えば、消毒機制御ユニット５０はマイクロコンピュータを中心に構成されており、予めインストールされているプログラムを実行することにより、各部を駆動制御して、各種の動作を行わせる。 The drive control of each part of the ozone water endoscope disinfector 1 having the above-described configuration is performed by the disinfector control unit 50. For example, the sterilizer control unit 50 is configured mainly with a microcomputer, and by executing a program installed in advance, each part is driven and controlled to perform various operations.
　消毒機制御ユニット５０は、デフォルト値あるいはタッチパネル７からの設定入力に基づき、消毒槽４内のオゾン水２２の濃度を設定濃度に制御する濃度制御部５０ａ、消毒槽４に供給されるオゾン水生成タンク２１ａ内のオゾン水２２を設定温度に制御（調整）する温度制御部５０ｂ、および、消毒槽４内でのオゾン水２２による消毒処理の処理時間を設定時間に制御する時間制御部５０ｃとして機能する。 The disinfector control unit 50 generates ozone water to be supplied to the disinfection tank 4, based on a default value or a setting input from the touch panel 7, and a concentration control unit 50 a that controls the concentration of the ozone water 22 in the disinfection tank 4 to the set concentration. Functions as a temperature control unit 50b that controls (adjusts) the ozone water 22 in the tank 21a to a set temperature, and a time control unit 50c that controls the processing time of the disinfection treatment with the ozone water 22 in the disinfection tank 4 to the set time. To do.
（動作モード例）
　上記構成のオゾン水内視鏡消毒機１を高水準消毒機として用いて結核菌を消毒できるようにする場合には、消毒機制御ユニット５０の制御の下に、例えば、次の動作モードによって各部が動作する。 (Example of operation mode)
In the case of using the ozone water endoscope disinfecting machine 1 configured as described above as a high-level disinfecting machine so that tuberculosis germs can be disinfected, for example, each unit is controlled by the following operation mode under the control of the disinfecting machine control unit 50. Works.
　例えば、消毒条件は、結核菌を消毒できるように、オゾン水濃度が３ｐｐｍ、処理時間が５分とされる。また、水温は２０℃以下に制御される。オゾン水内視鏡消毒機１に取り付けられている冷水ユニット１６は、例えば、電源スイッチ１１がオンされると、冷水生成動作を開始して、冷水タンク６１に例えば５℃の冷水を溜める。 For example, the disinfection conditions are such that the concentration of ozone water is 3 ppm and the treatment time is 5 minutes so that tuberculosis bacteria can be disinfected. The water temperature is controlled to 20 ° C. or lower. For example, when the power switch 11 is turned on, the cold water unit 16 attached to the ozone water endoscope sterilizer 1 starts a cold water generation operation and stores cold water of 5 ° C. in the cold water tank 61, for example.
　消毒機制御ユニット５０は、オゾン水生成用の原水として、温度制御されていない水道水２３を、直接に、フィルタ２４を介して、オゾン水生成ユニット２１のオゾン水生成タンク２１ａに取り込む動作を開始する。また、給水経路に配置した水温計２７による検出水温に基づき、オゾン水生成タンク２１ａ内の水温が２０℃以下となるように制御する。例えば、水道水２３の温度が２０℃よりも高い場合には、冷水ユニット１６から５℃に制御されている冷水２８を取り込み、オゾン水生成タンク２１ａ内の水温を２０℃となるように制御する。 The sterilizer control unit 50 starts an operation of taking tap water 23 whose temperature is not controlled as raw water for generating ozone water directly into the ozone water generation tank 21a of the ozone water generation unit 21 through the filter 24. To do. Moreover, based on the water temperature detected by the water temperature meter 27 arranged in the water supply path, the water temperature in the ozone water generation tank 21a is controlled to be 20 ° C. or lower. For example, when the temperature of the tap water 23 is higher than 20 ° C., the cold water 28 controlled to 5 ° C. is taken from the cold water unit 16 and the water temperature in the ozone water generation tank 21a is controlled to 20 ° C. .
　オゾン水生成タンク２１ａ内に所定量の原水２３（水道水）が溜まった時点から、オゾナイザ３２によって生成されるオゾンガス３１をオゾン水生成タンク２１ａ内に取り込み、オゾン水生成タンク２１ａ内においてオゾン水２２の生成動作を行う。オゾンガス３１の注入量（注入時間）を制御することにより、オゾン水生成タンク２１ａ内のオゾン水２２の濃度を、設定濃度である３ｐｐｍ前後となるように制御することができる。 When a predetermined amount of raw water 23 (tap water) accumulates in the ozone water generation tank 21a, the ozone gas 31 generated by the ozonizer 32 is taken into the ozone water generation tank 21a, and the ozone water 22 is stored in the ozone water generation tank 21a. The generation operation is performed. By controlling the injection amount (injection time) of the ozone gas 31, the concentration of the ozone water 22 in the ozone water generation tank 21a can be controlled to be around 3 ppm which is the set concentration.
　この後は、消毒機制御ユニット５０は、オゾン水生成タンク２１ａに貯留されているオ
ゾン水２２を消毒槽４に供給する。消毒槽４の側においては、循環ポンプ３７を駆動してオゾン水２２の循環を開始する。オゾン水濃度計３８によって計測されるオゾン水濃度が３ｐｐｍ未満の場合には、オゾナイザ３２からオゾンガス３１を消毒槽４に導入して、オゾン濃度を、設定濃度となるように調整する。オゾン濃度が３ｐｐｍに達した後は、内視鏡５の消毒処理を開始する。 Thereafter, the sterilizer control unit 50 supplies the ozone water 22 stored in the ozone water generation tank 21 a to the sterilization tank 4. On the disinfection tank 4 side, the circulation pump 37 is driven to start circulation of the ozone water 22. When the ozone water concentration measured by the ozone water concentration meter 38 is less than 3 ppm, the ozone gas 31 is introduced from the ozonizer 32 into the disinfecting tank 4 and the ozone concentration is adjusted to the set concentration. After the ozone concentration reaches 3 ppm, the disinfection process of the endoscope 5 is started.
　内蔵タイマ等によって消毒時間５分が経過したことが検出されると、消毒処理を終了して、オゾン水２２を消毒槽４から排出する排出動作を行う。 When it is detected by the built-in timer or the like that the sterilization time of 5 minutes has elapsed, the sterilization process is terminated, and a discharge operation for discharging the ozone water 22 from the sterilization tank 4 is performed.
　なお、消毒条件として、３ｐｐｍよりも低いオゾン濃度が設定され、オゾン水温度として２０℃よりも低い温度が設定された場合には、設定濃度、設定温度のオゾン水２２がオゾン水生成タンク２１ａにおいて生成されるように、消毒機制御ユニット５０は動作制御を行う。 In addition, when ozone concentration lower than 3 ppm is set as disinfection conditions, and the temperature lower than 20 degreeC is set as ozone water temperature, the ozone water 22 of setting concentration and setting temperature is in the ozone water production | generation tank 21a. As generated, the disinfector control unit 50 controls the operation.
　また、消毒条件として、オゾン濃度が低い場合にはオゾン水の温度制御を行わない運転モードで消毒処理を行うことができる。例えば、オゾン濃度が０．５ｐｐｍ、消毒時間が５分の場合には温度制御を行わない。この場合には、オゾン水内視鏡消毒機１に冷水ユニット１６を取り付けないで、オゾン水内視鏡消毒機１を運転する。あるいは、冷水ユニット１６が取り付けられている場合には、冷水ユニット１６からの冷水の供給を行わずに（第２原水供給系から給水せずに）、オゾン水内視鏡消毒機１を運転すればよい。 Also, as a disinfection condition, when the ozone concentration is low, the disinfection treatment can be performed in an operation mode in which the temperature control of the ozone water is not performed. For example, temperature control is not performed when the ozone concentration is 0.5 ppm and the disinfection time is 5 minutes. In this case, the ozone water endoscope sterilizer 1 is operated without attaching the cold water unit 16 to the ozone water endoscope sterilizer 1. Alternatively, when the cold water unit 16 is attached, the ozone water endoscope disinfector 1 is operated without supplying the cold water from the cold water unit 16 (without supplying water from the second raw water supply system). That's fine.
　以上説明したように、オゾン水内視鏡消毒機１は濃度制御部５０ａを備え、消毒に用いるオゾン水のオゾン濃度を、結核菌を確実に死滅させることのできる高水準消毒に必要な３ｐｐｍに高めることができる。 As described above, the ozone water endoscope disinfector 1 includes the concentration control unit 50a, and the ozone concentration of ozone water used for disinfection is set to 3 ppm necessary for high-level disinfection that can surely kill tuberculosis bacteria. Can be increased.
　また、オゾン水の温度制御部５０ｂを備えているので、夏場等において原水として用いる水道水２３の温度が高い場合に、水道水２３を例えば２０℃に下げることができる。この結果、高水準消毒に必要な高濃度のオゾン水を、高い温度の水道水を用いて生成する場合に比べて、短時間で生成できる。よって、内視鏡等の医療機器類の高水準消毒を、処理時間を大幅に長くすることなく、効率良く行うことが可能になる。 In addition, since the temperature control unit 50b of ozone water is provided, the tap water 23 can be lowered to 20 ° C., for example, when the temperature of the tap water 23 used as raw water is high in summer. As a result, high-concentration ozone water required for high-level disinfection can be generated in a shorter time compared to the case of generating high-temperature tap water. Therefore, it is possible to efficiently perform high-level disinfection of medical devices such as endoscopes without significantly increasing the processing time.
　さらに、温度制御部５０ｂは、オゾン水の温度を２０℃に制御している。これにより、高温のオゾン水に晒される消毒対象物が材料劣化するという弊害を、防止あるいは抑制できる。 Furthermore, the temperature controller 50b controls the temperature of the ozone water to 20 ° C. Thereby, the adverse effect that the material to be disinfected is exposed to high-temperature ozone water can be prevented or suppressed.
　これに加えて、消毒に用いる所定濃度および所定温度のオゾン水を、予め、オゾン水生成タンク２１ａ内において生成している。消毒槽４内において直接に所定濃度のオゾン水２２を生成する場合に比べて、オゾン水生成のための時間分だけ、消毒時間を短縮化できる。 In addition, ozone water having a predetermined concentration and a predetermined temperature used for disinfection is generated in advance in the ozone water generation tank 21a. Compared with the case where ozone water 22 having a predetermined concentration is directly generated in the disinfection tank 4, the disinfection time can be shortened by the time required for generating ozone water.
　また、冷水ユニット１６において、予め、冷水タンク６１内に冷水２８を貯留するようにしている。冷水２８を、オゾン水生成タンク２１ａ内において、温度制御されていない水道水２３と混合することにより、生成されるオゾン水２２の温度を設定水温となるように制御している。予め温度制御された冷水２８を用いることにより、生成されるオゾン水２２の温度制御を、廉価な構成により短時間で効率良く行うことができる。 In the cold water unit 16, the cold water 28 is stored in the cold water tank 61 in advance. By mixing the cold water 28 with the tap water 23 whose temperature is not controlled in the ozone water generation tank 21a, the temperature of the generated ozone water 22 is controlled to be the set water temperature. By using the cold water 28 whose temperature is controlled in advance, the temperature control of the generated ozone water 22 can be efficiently performed in a short time with an inexpensive configuration.
　ここで、オゾン水の濃度と消毒処理の時間との適切な組み合わせを採用することにより、消毒対象物のそれぞれに適した形態（濃度、温度、時間）で消毒処理を行うことができる。内視鏡等の医療機器類の場合には、オゾン水濃度を、０．３ｐｐｍから５ｐｐｍまでの範囲内の値とし、処理時間を、１分から３０分までの範囲内の値とすればよい。 Here, by adopting an appropriate combination of the concentration of ozone water and the time of the disinfection treatment, the disinfection treatment can be performed in a form (concentration, temperature, time) suitable for each object to be disinfected. In the case of medical equipment such as an endoscope, the ozone water concentration may be a value within the range of 0.3 ppm to 5 ppm, and the treatment time may be a value within the range of 1 minute to 30 minutes.
　この場合、オゾン濃度と処理時間との積が殺菌効果に対応するので、これらの積が、２ｐｐｍ・ｍｉｎから２０ｐｐｍ・ｍｉｎまでの範囲内の値となるようにすることが望ましい。この範囲内の値となるように、オゾン濃度と処理時間の組み合わせを設定することにより、結核菌から一般の細菌までの広範囲の消毒を適切に行うことができ、また、消毒時間の短縮化も図ることができる。 In this case, since the product of the ozone concentration and the treatment time corresponds to the bactericidal effect, it is desirable that these products have values in the range of 2 ppm · min to 20 ppm · min. By setting the combination of ozone concentration and treatment time so as to be within this range, it is possible to appropriately perform a wide range of disinfection from tuberculosis bacteria to general bacteria, and shorten the disinfection time. Can be planned.
　また、オゾン水の温度は、０℃から３０℃までの範囲内の値にすることが望ましい。０℃を下回る温度では原水が凍結するので好ましくない。３０℃を超える程の温度では、高濃度のオゾン水を生成するために長時間を要し、また、高温で高濃度のオゾン水を用いる場合には消毒対象物に材料劣化が生じるおそれもあるからである。 Also, it is desirable that the temperature of the ozone water be a value within the range from 0 ° C to 30 ° C. A temperature below 0 ° C. is not preferable because the raw water freezes. At a temperature exceeding 30 ° C., it takes a long time to generate high-concentration ozone water, and when high-concentration ozone water is used at a high temperature, there is a risk of material deterioration in the disinfection target. Because.
　なお、上記の実施の形態では、オゾン水生成ユニット２１のオゾン水生成タンク２１ａ内において生成されるオゾン濃度を、オゾンガスの注入量（注入時間）によって管理している。オゾン水生成タンク２１ａ内において生成されるオゾン水２２のオゾン濃度を直接に検出し、これに基づきオゾン濃度を制御してもよいことは勿論である。 In the above embodiment, the ozone concentration generated in the ozone water generation tank 21a of the ozone water generation unit 21 is managed by the injection amount (injection time) of ozone gas. Of course, the ozone concentration of the ozone water 22 generated in the ozone water generation tank 21a may be directly detected, and the ozone concentration may be controlled based on this.
　また、上記の実施の形態では、オゾン水生成タンク２１ａ内のオゾン水の温度を制御しているが、消毒槽４内に供給されたオゾン水の温度を直接には制御していない。一般的に、オゾン水内視鏡消毒機１は院内等の環境温度が一定に保持される場所で使用される場合が殆どであり、消毒槽４に供給されたオゾン水温度が大幅に変動する可能性が極めて低い。よって、オゾン水生成タンク２１ａに置いて生成されるオゾン水温度を管理すれば、実質的に消毒槽４内のオゾン水温度を管理できる。勿論、消毒槽４内において直接に水温計等によってオゾン水温度を検出して、温度制御を行うようにすることも可能である。 In the above embodiment, the temperature of the ozone water in the ozone water generation tank 21a is controlled, but the temperature of the ozone water supplied into the disinfection tank 4 is not directly controlled. In general, the ozone water endoscope disinfector 1 is mostly used in a place where the environmental temperature is kept constant, such as in a hospital, and the temperature of the ozone water supplied to the disinfection tank 4 varies greatly. Very unlikely. Therefore, if the ozone water temperature produced | generated in the ozone water production | generation tank 21a is managed, the ozone water temperature in the disinfection tank 4 can be managed substantially. Of course, it is also possible to detect the temperature of the ozone water directly in the sterilization tank 4 with a water thermometer or the like to control the temperature.

Claims (15)

  1. 　外部から供給される供給水を原水として用いてオゾン水を生成し、生成したオゾン水を用いて消毒槽内で消毒対象物の消毒処理を行うオゾン水消毒機を用いたオゾン水消毒方法であって、
    　前記オゾン水のオゾン濃度を、０．３ｐｐｍから５ｐｐｍまでの範囲内の値とし、
    　前記オゾン水の温度を予め設定した温度以下に制御することを特徴とするオゾン水消毒方法。     This is an ozone water disinfection method using an ozone water disinfection machine that generates ozone water using raw water supplied from the outside as raw water and disinfects the object to be disinfected in the disinfection tank using the generated ozone water. And
    The ozone concentration of the ozone water is a value within a range from 0.3 ppm to 5 ppm,
    The ozone water disinfection method, wherein the temperature of the ozone water is controlled to be equal to or lower than a preset temperature.
  2. 　前記オゾン水の温度を、０℃から３０℃までの範囲内の値とする請求項１に記載のオゾン水消毒方法。 The ozone water disinfection method according to claim 1, wherein the temperature of the ozone water is set to a value within a range from 0 ° C to 30 ° C.
  3. 　前記オゾン水の温度を、２０℃以下の値とする請求項２に記載のオゾン水消毒方法。 The ozone water disinfection method according to claim 2, wherein the temperature of the ozone water is set to a value of 20 ° C or lower.
  4. 　前記消毒処理の処理時間を、１分から３０分までの範囲内の値とする請求項１に記載のオゾン水消毒方法。 The ozone water disinfection method according to claim 1, wherein the disinfection treatment time is set to a value within a range of 1 minute to 30 minutes.
  5. 　前記オゾン濃度と前記処理時間との積が、２ｐｐｍ・ｍｉｎから２０ｐｐｍ・ｍｉｎまでの範囲内の値となるように、前記オゾン濃度と前記処理時間との組み合わせを設定する請求項４に記載のオゾン水消毒方法。 The ozone according to claim 4, wherein a combination of the ozone concentration and the treatment time is set so that a product of the ozone concentration and the treatment time becomes a value within a range of 2 ppm · min to 20 ppm · min. Water disinfection method.
  6. 　前記オゾン水の温度を、２０℃以下の値とし、
    　前記消毒処理の処理時間を、１分から３０分までの範囲内の値とし、
    　前記オゾン濃度と前記処理時間との積が、２ｐｐｍ・ｍｉｎから２０ｐｐｍ・ｍｉｎまでの範囲内の値となるように、前記オゾン濃度と前記処理時間との組み合わせを設定する請求項１に記載のオゾン水消毒方法。     The temperature of the ozone water is set to a value of 20 ° C. or less,
    The treatment time for the disinfection treatment is a value within a range from 1 minute to 30 minutes,
    The ozone according to claim 1, wherein a combination of the ozone concentration and the treatment time is set so that a product of the ozone concentration and the treatment time becomes a value within a range from 2 ppm · min to 20 ppm · min. Water disinfection method.
  7. 　前記消毒対象物は内視鏡である請求項１ないし６のうちのいずれか一つの項に記載のオゾン水消毒方法。 The ozone water disinfection method according to any one of claims 1 to 6, wherein the object to be disinfected is an endoscope.
  8. 　外部から供給される供給水を原水として用いてオゾン水を生成し、生成したオゾン水を用いて、消毒槽内において消毒対象物の消毒処理を行うオゾン水消毒機であって、
    　前記オゾン水のオゾン濃度を、０．３ｐｐｍから５ｐｐｍまでの範囲内の値に制御可能な濃度制御部と、
    　前記オゾン水の温度を制御可能な温度制御部と、
    を有していることを特徴とするオゾン水消毒機。     An ozone water disinfection machine that generates ozone water using raw water supplied from outside, and uses the generated ozone water to disinfect the object to be disinfected in the disinfection tank,
    A concentration control unit capable of controlling the ozone concentration of the ozone water to a value within a range from 0.3 ppm to 5 ppm;
    A temperature control unit capable of controlling the temperature of the ozone water;
    An ozone water disinfection machine characterized by comprising:
  9. 　前記温度制御部は、前記オゾン水の温度を、０℃から３０℃までの範囲内の値に制御可能である請求項８に記載のオゾン水消毒機。 The ozone water sterilizer according to claim 8, wherein the temperature control unit can control the temperature of the ozone water to a value within a range from 0 ° C to 30 ° C.
  10. 　前記温度制御部は、前記オゾン水の温度を２０℃以下に制御可能である請求項９に記載のオゾン水消毒機。 The ozone water sterilizer according to claim 9, wherein the temperature control unit can control the temperature of the ozone water to 20 ° C or lower.
  11. 　前記消毒槽内での前記オゾン水による消毒処理の処理時間を、１分間から３０分間までの範囲内の値に制御可能な時間制御部を有している請求項８に記載のオゾン水消毒機。 The ozone water disinfector according to claim 8, further comprising a time control unit capable of controlling a treatment time of the disinfection treatment with the ozone water in the disinfection tank to a value within a range of 1 minute to 30 minutes. .
  12. 　前記濃度制御部および前記時間制御部によってそれぞれ制御される前記オゾン濃度と前記処理時間との積が、２ｐｐｍ・ｍｉｎから２０ｐｐｍ・ｍｉｎまでの範囲内の値である請求項１１に記載のオゾン水消毒機。 12. The ozone water disinfection according to claim 11, wherein a product of the ozone concentration and the treatment time respectively controlled by the concentration control unit and the time control unit is a value within a range from 2 ppm · min to 20 ppm · min. Machine.
  13. 　オゾンガスを生成するオゾンガス生成部と、
    　前記消毒槽に供給されるオゾン水を生成して貯留するオゾン水生成貯留部と、
    を有しており、
    　前記濃度制御部は、前記オゾンガス生成部から、前記オゾン水生成貯留部および前記消毒槽に供給されるオゾンガスの供給量を制御する請求項８に記載のオゾン水消毒機。     An ozone gas generating unit for generating ozone gas;
    An ozone water generation and storage section for generating and storing ozone water to be supplied to the disinfection tank;
    Have
    The ozone water sterilizer according to claim 8, wherein the concentration control unit controls an amount of ozone gas supplied from the ozone gas generation unit to the ozone water generation storage unit and the disinfection tank.
  14. 　前記オゾン水生成貯留部に対して、外部から原水を供給する第１原水供給系と、
    　前記オゾン水生成貯留部に対して、貯水タンクに貯留されている所定温度に制御された原水を供給する第２原水供給系と、
    を有しており、
    　前記温度制御部は、前記第１、前記第２原水供給系のそれぞれから前記オゾン水生成貯留部に供給される原水の供給量を制御する請求項１３に記載のオゾン水消毒機。     A first raw water supply system for supplying raw water from the outside to the ozone water generation and storage unit;
    A second raw water supply system for supplying raw water controlled at a predetermined temperature stored in a water storage tank to the ozone water generation storage section;
    Have
    The ozone water sterilizer according to claim 13, wherein the temperature control unit controls a supply amount of raw water supplied from the first and second raw water supply systems to the ozone water generation and storage unit.
  15. 　前記消毒対象物は内視鏡である請求項８ないし１４のうちのいずれか一つの項に記載のオゾン水消毒機。 The ozone water disinfector according to any one of claims 8 to 14, wherein the object to be disinfected is an endoscope.
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DE102016115904B4 (en) 2015-08-27 2017-12-07 Denso Corporation Starter for machine
US10328170B2 (en) * 2016-10-21 2019-06-25 Ethicon, Inc. Dynamic disinfectant dosage with concentrate degradation compensation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112123A (en) * 1993-10-15 1995-05-02 Suzuki Masao Method for indirectly controlling concentration of solution of gas in liquid
JP2004215930A (en) * 2003-01-15 2004-08-05 Kitano Takahiro Method and device for sterilizing and cleaning endoscope

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03176061A (en) * 1989-09-26 1991-07-31 Olympus Optical Co Ltd Washer/disinfector for endoscope
JP2622646B2 (en) * 1992-05-08 1997-06-18 ファーム和歌山株式会社 Fruit and vegetable ozonation equipment
JPH07108056A (en) * 1993-02-02 1995-04-25 Suzuki Masao Sterilizing method by ozone
JP2002336197A (en) * 2001-05-16 2002-11-26 Ishikawajima Harima Heavy Ind Co Ltd Endoscope washing method and apparatus
JP5779321B2 (en) * 2010-06-18 2015-09-16 シャープ株式会社 High concentration ozone water manufacturing method and high concentration ozone water manufacturing apparatus
JP5940410B2 (en) * 2012-08-08 2016-06-29 株式会社Ｉｈｉシバウラ Ozone sterilizer
JP6422766B2 (en) * 2014-12-24 2018-11-14 株式会社Ｉｈｉアグリテック Ozone water disinfector
JP6422767B2 (en) * 2014-12-24 2018-11-14 株式会社Ｉｈｉアグリテック Ozone water disinfector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112123A (en) * 1993-10-15 1995-05-02 Suzuki Masao Method for indirectly controlling concentration of solution of gas in liquid
JP2004215930A (en) * 2003-01-15 2004-08-05 Kitano Takahiro Method and device for sterilizing and cleaning endoscope

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