CN85105856A - Disinfector - Google Patents

Abstract

Medical and agricultural disinfector adopts ozone, water and ultrasonic energy, can kill even the most difficult antibacterial of killing and spore, and used time ratio oxireme disinfector is short, and can be used in the vessel sterilization of the variation that can not bear vapor (steam) temperature or pressure.Because do not need pressurization or heating, so disinfector is light especially, convenient and inexpensive.The article that are sterilized are suspended in the water-bath top, and ozone is by the water-bath bubbling, and moistening ozone contacts with article.Then that article are under water and stand the short time ultrasonic vibration and degerm and improve water/article and contact to remove.

Description

Disinfector

The present invention is for U.S. Patent application 3,719, the improvement of 017 disclosed method.

The invention provides a kind of sterilization method.This method is under water the article that are sterilized, simultaneously, makes ozone by the ascites bubble and touch on the said article.

People's plan simplifies the operation, increases effect, uses ultrasonic vibration by also flowing, except that degerming and making potential bacterial exposure in disinfectant.

The present invention will be described further with reference to accompanying drawing by embodiment, wherein:

Fig. 1 is the medical disinfecting sketch.

Fig. 2 is agricultural disinfector sketch.

Fig. 3～Fig. 9 is illustrated in the sterilization chamber in each stage in the disinfection cycle.

In the medical disinfecting of Fig. 1, the vessel that are sterilized device are placed on the top that a gauze basket that liquids and gases are freely circulated is supported on the jar 2 that is sealed by lid 3 on vessel, to form sterilization chamber.

In the disinfectant phase I, water is installed in the jar to water pipe 4 positions, by managing 5 drain pipe 4 linked to each other with the system vacuum system.In this stage,, will drain excessive water if water level is raised to pipe more than 4.Water is by pipe 7, filter screen 8, air relief valve 9, hand-operated valve 10, effusion meter 11, and electromagnetic valve 12 and hand-operated valve 13 enter in the jar, at last water are discharged into tank bottoms.Be provided for ozoniferous oxygen by the pipe 14 that joins with oxygen supply 15, oxygen is by filter 16, and air relief valve 17, hand-operated valve 18, electromagnetic valve 19, air drier 20 and effusion meter 21 are to ozonator 23.Have only and when the pipe pressure is not high enough, just use pump 16a.Ozone leaves ozonator, enters in the jar by managing 24, has flat burner 25 bubbling from water of a large amount of pores 26 by the surface.In the disinfectant phase I, keep water level in pipe 4 positions.Ozone is water-soluble by ascites bubble, and generates moistening ozone vapour, and this vapour flows upward on the vessel in the basket 1.The ozone that is full of steam is effective disinfectant for the surface that all and it touch.Xiang Shuili adds the Disinfection Effect that wetting agent can further increase moistening ozone.Just in time be lower than under the vapor sterilization humidity, ozone is the oxidant of effective oxidation or burn antibacterial or spore.In other words, can not bear the vessel of vapor sterilization humidity, pressure or vacuum, sterilize effectively with regard to available moistening ozone.Ozone vapour illustrates in Fig. 4, approximately uses 15～25 minutes.

In next stage, close valve on the drain pipe 4, open valve on the drain pipe 27, make liquid level in the jar be raised to the position of drain pipe 27; Vessel are immersed in the water of ozonisation, the ozone bubble touches vessel and cleaning function is arranged, and can remove surface bacteria.This effect is very important for the surface that has multilayered bacteria, because outer antibacterial can stop inside or the sterilization of potential layer antibacterial.Antibacterial at first with outer surface that ozone contacts on, Disinfection Effect is best.Fig. 5 is the explanation in this stage.In next stage, with bubbling ozone and stream, ultrasonic transducer 30 goes out ultrasonic vibration by waterishlogging, vessel surface had cleaning function, and the antibacterial of staying in the slit had percussion, so that contain that the water (disinfectant) of ozone enters in the slit and flow out from the slit, thus with the inexpungible antibacterial of disinfectant to being expelled.During ultrasonic circulating, switch on and off ultrasonic tr-ansducer, connect a second, disconnect several seconds.So just reach ultrasonication, and do not drive away the O in the solution ₂This second stage is approximately with 15 minutes.

Last at disinfection cycle will have a distinctive interval, is approximately half of steam or required total time of gas depoisoning, under electromagnetic valve 32 controls, the water in jars 2 by drain pipe 31 discharges, so that water is sent into hospital's vacuum tube 5.Also has a standby manual drainage pipe 33.In the jar discharging, flow of ozone continues about 5 minutes, so that make the vessel drying.Then, make and flow through jar and carry out drying, remove ozone.Last at the disinfection cycle drying stage taken away lid, from jar vessel taken out together with pallet.

By embodiment, below given result of the test show the effect of disinfector.Ozone with variable concentrations has carried out sterile test to many different types of antibacterials.This is typical battery of tests.

Antibacterial sterilization time (using 2% ozone)

Escherichia coli 4 minutes

Aurococcus

(staphylocollus aureus) 5 minutes

Streptococcus pyogenes (streptocollus pyogcnes) 6 minutes

Candida albicans 4 minutes

Penicillum motatum 3 minutes

Aspergillus niger 6 minutes

The mutation globigii of Bacillus bacillus subtilis, the spore of a kind of formation antibacterial that is difficult to kill is defined as the sterilization standard.Usp has stipulated that to this antibacterial sterilization time is 120 minutes.The commercially sterilising device will can 100% be killed with 30～50 minutes sterilization times.The concentration that we are producing is that 3.5～4.5% ozone got final product 100% sterilization in 15～20 minutes.

Sterilization time directly changes with ozone concentration.With concentration be 1.5% ozone go out the mutation of Bacillus bacillus subtilis will be with 75 minutes.And be 5% ozone with concentration, the time that needs is no more than 10 minutes.

Portable agricultural disinfector shown in Figure 2 is by 110 volts, 60 weeks or by 12 overhead accumulator work, and replaces oxygen with air, and used water is circulation continuously between sterilization chamber and basin.With pump 35 water in the basin is circulated so that cooling by ozonator.

Portable disinfector can be with the line basket 1 of medical disinfecting shown in Figure 1, jars 2 and lid 3.Other same parts is represented with same numeral.

Be used for the feed line 36 of the air admission of ozonator 23 by valve 37 manual controls, and flow through filter 38 to pump 39, pump 39 outlets 40 are regulated by pressure graduating valve 41, and by valve 18 adjustment flow velocitys.Then, make air flow through air drier 42, enter in the ozonator 23 through effusion meter 43 and control valve 44 again so that slough dampness.Air drier 42 is equipped with heater coil 45, and when giving heater coil 45 energisings, it is with regard to heat drier, and disperses the moisture content of collection.Behind the disinfector each run, all to drive the operation of moisture content.When heat drier 42, shut off valve 44 is opened valve 46 so that water vapour is run away.

From air and the ozone mixture that ozonator 23 comes out, flow through pipe 24 and effusion meter control valve 48 and enter and soak pipe 49 near jar 2 bottoms.On the upper surface made from rustless steel, many pores are arranged, use so that the air of ozonisation is overflowed.The air bubbling of ozonisation is upwards by water, and formation has the moistening ozone of steam, thereby can sterilize to the vessel in the basket 1.Ozone is also soluble in water, and water itself has also become disinfectant.

The sterilization water obtains from charging-tank 50, by valve 72 usefulness 51 charging-tank is full of water.Water preferably contains wetting agent, other water solublity disinfectant such as hydrogen peroxide, hydrogen sulfide, hydrocyanic acid, iodine compound etc., can or disinfectant or add as disinfectant separately as a supplement.

The water that comes out from charging-tank 50 flows through manual adjustment valve 52 and filter 53 to pump 54.Manually adjust valve 52 and filter 53 to pump 54.Manually adjust valve 52 and be contained on the valve of measuring flow velocity, pump 54 is delivered to disinfection tank 2 bottoms to water by pressure regulator valve 55a.During the sterilization, pump 54 continuous operation.In the phase I, open valve 55, water is discharged by pipe B and valve 55 continuously, and be recycled in the jar by managing 56.So just keep water level more than pipe B, cover nozzle 49, so that the air that makes ozonisation produces moistening ozone vapour in order to the vessel that coil in 1 are carried out disinfection under pressure by the ascites bubble.With the water level in the observer 56a index pot 50.In this stage, the excessive ozone that contains air comes out to flow to the filter 58 that contains carbon and heater 59 through pipe 57 from jar 2.Ozone is decomposed and be transformed into carbon dioxide, be discharged in the atmosphere by valve 60 and delivery pipe 61.The disinfectant phase I continues nearly 15 minutes.

Last in the phase I, shut off valve 55, pump 54 remains in operation.Water level reaches outlet A, excessive water by manage 56 and valve 51A turn back in the charging-tank.In this stage, the vessel in the dish 1 are immersed in the ozone of moisture (disinfectant), and ozone disengages from water with the bubble form that is full of ozone.Ozone bubbles around the vessel has the cleaning function of eliminating surface contamination.The aqueous ozone of bubble fragmentation when contacting with vessel also causing seesaws, and enters the slit that may contain noxious bacteria and discharges from the slit.In this second stage, can prolong 15～30 minutes again and periodically power for supersonic generator 62, the ultrasound wave of generation has further cleaning function to vessel, also helps to make the ozone that contains liquid to seesaw, and enters in the slit and from the slit.Supersonic generator is preferably in short time interval intercycle ground and starts, as opens a second and then closed for 4 seconds, so that be unlikely to make ultrasound wave too much ozone to be driven away from water.

In the final stage of disinfection cycle, shut off valve 48,55a and 60 open valve 63,51a.Stop pump 54, make the water in the jar 2 be discharged to basin 50 by managing 64 and 56.Force that aeriferous aseptic ozone enters the carbon filter 58 of heating in the jar, ozone is transformed into carbon dioxide and oxygen here, with pump 65 carbon dioxide and oxygen are turned back in jars 2 by exsiccator 66 and valve 63a, in jar 2 with more contain air ozone merga pass filter 58 and be recycled in the jar.Making water be expelled back into basin 50 will be with about 10 minute.When water level is lower than nozzle 49, start pump 65, open valve 69 and shut off valve 51a, with the energising of the heater coil in 68 pairs of jars 2 heated air.This heat effect helps dry and helps to remove ozone.After 30 minutes, ozone free exists in the jar 2, and the vessel in the dish 1 also are dried, and lid is taken away, and takes out the vessel dish.When needs are removed ozone, be accompanied by the circulation filtrated air and also just finished drying.By providing energy can quicken drying to heater, the further filtrated air in the heating tank.

The sterilization chamber in Fig. 3～9 expression each stages of disinfection cycle.

Fig. 3 is for preparing to hold the sterilization chamber that is sterilized vessel or other article.

Fig. 4 is lower than vessel for water level, and ozone and gas (Fig. 1 is an oxygen, and Fig. 2 is an air) mixture is by the ascites bubble, to form the high humility ozone steam of effective disinfectant.

Fig. 5 for water level risen vessel be immersed in contain aqueous disinfectant) ozone in, contain the ozone bubbles of gas in the water with cleaning function, effectively remove surface contamination and be penetrated in the slit.

Fig. 6 represents to adopt periodically, and ultrasonic vibration increases cleaning function.In quite short interval, use ultrasonic vibration, ozone is driven from water so that prevent.Keep dissolved ozone to prevent to reduce the antiseptic property of water.

Fig. 7 represents to begin draining.Thereby the disinfective action that makes the continuous bubbling of ozone keep high humility ozone steam.

Fig. 8 represents arid cycle.For Fig. 1, heating element heater 68 is starting, and the Oxygen cycle of exsiccant ozonisation is flow through sterilization chamber 2 to vacuum tube 5, removes the dampness of vessel.For the manual disinfector of Fig. 2, heating element heater is starting, and the air circulation of the ozonisation in the sterilization chamber 2 flows through ozone filter 58, the exsiccator 66 of heating and turns back to sterilization chamber 2.The air of ozonisation is aseptic.Circulation can not polluted vessel.Last in arid cycle, vessel are aseptic and exsiccant, ozone free existence in the sterilization chamber.

Only the stage described in Fig. 3,4,8, do not adopt the tote of to sterilize under water.

As shown in Figure 3, the article that are sterilized are packed in the sealing and the sterilization chamber of finding time, to guarantee that disinfectant is infiltrated equably.

As shown in Figure 4, moistening ozone is injected in the sterilization chamber also by ozone filter 58 discharges.Last at disinfection cycle, generally to continue 30～45 minutes, the water of draining, utilize the filtrated air in the heating element heater heating disinfection chambers 68, and by ozone filter 58 circulation to remove ozone, turn back in the sterilization chamber by exsiccator 66, here with from the dampness of tote merge, and carry out recirculation.After circulation a few minutes, tote is dried, and ozone is by Ex-all, and prepares to take out from sterilization chamber, as shown in Figure 9.Recirculation is also removed the chemical sterilization accessory substance.

Non-of the present invention limits ozone and water.Other liquid all can be added in the water as alcohol, mineral oil, organic solvent etc. or replace water.Liquid can have antiseptic property, and other disinfectant such as hydrocyanic acid, hydrogen peroxide, hydrogen sulfide, iodide can be used to join in the ozone or replace oxygen.Ozone " removes " hydrocyanic acid, therefore, in the time of must using these two kinds of reagent, at first uses hydrocyanic acid, reuse ozone.

Claims (16)

1, a kind of sterilization method, it is characterized in that will be sterilized article immerse in the water, when its is soaked, ozone bubbling and touching on the said article in water.

2, according to the method for right item 1, it is characterized in that it immerses the impact that article stand of short duration ultrasonic vibration simultaneously, the dead time between the pulse is longer than the impact time.

3, according to the method for claim 1 or 2, it is characterized in that its ozone is dispersed in the oxygen that contains gas.

4, according to the method for claim 1 or 2, it is characterized in that its ozone is dispersed in the air.

5, a kind of sterilization method is characterized in that the article that are sterilized at first stand moistening ozone, immerses then in the water, and ozone steeps by ascites and touches on the article.

6, according to the method for claim 5, it is characterized in that immersing article and flow through being subjected to the impact of of short duration ultrasonic vibration, the dead time between the pulse is longer than the impact time.

7, according to the method for claim 5 or 6, it is characterized in that ozone is dispersed in the oxygen that contains gas.

8, according to the method for claim 5 or 6, it is characterized in that ozone is dispersed in the air.

9, according to the method for claim 1, it is characterized in that wetting agent adds in the water, so that more easily enter potential zone.

10, according to the method for claim 5, it is characterized in that above water, for containing the ozone aseptic gas of air, last at disinfection cycle, this gas is recycled the carbon that flows through heating, become carbon dioxide and air to change ozone, and, turn back to the article that sterilization chamber goes drying to be sterilized again by the exsiccator dry-off moisture.

11, the method for sterilizing objects in closed cell is characterized in that comprising making gas pass through liquid closed groove bubbling, contains the steam of gas with generation, and gas and/or liquid or its mixture are disinfectant.

12, according to the method for claim 11, it is characterized in that wherein liquid is water, gas is ozone.

13, a kind of sterilization method, it is characterized in that in sterilization chamber, a kind of aseptic gas of disinfectant that contains is round the article that are sterilized, and last at disinfection cycle, the continuous circular flow of the part of this gas cross filter with remove or in and disinfectant, and by the exsiccator dry-off moisture, and then turn back to sterilization chamber and mix, and the article that are sterilized of drying with aseptic gas.

14, according to the method for claim 13, it is characterized in that wherein disinfectant is an ozone, filter is the carbon of heating, this carbon is transformed into carbon dioxide and oxygen with ozone.

15, sterilization method is characterized in that the article that are sterilized stand the washing of ozone and water and a kind ofly kill special harmful microbe chemical substance and can be hydrogen peroxide, hydrocyanic acid, hydrogen sulfide, water-soluble iodine compound or its mixture.

16, finish the equipment of the defined method of above-mentioned arbitrary claim.

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