CN101862464A - Low-temperature plasma sterilization device - Google Patents
Low-temperature plasma sterilization device Download PDFInfo
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- CN101862464A CN101862464A CN200910038771A CN200910038771A CN101862464A CN 101862464 A CN101862464 A CN 101862464A CN 200910038771 A CN200910038771 A CN 200910038771A CN 200910038771 A CN200910038771 A CN 200910038771A CN 101862464 A CN101862464 A CN 101862464A
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- temperature plasma
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Abstract
The invention discloses a low-temperature plasma sterilization device, which comprises a sterilization chamber, a liquid container and a micro-porous atomization nozzle. The sterilization chamber is provided with a feed port and is connected with a vacuum extractor; the liquid container is filled with sterilization solution and is communicated with the feed port; and the micro-porous atomization nozzle which is controlled by a valve mechanism is arranged between the liquid container and the feed port. Since the micro-porous atomization nozzle is adopted for atomization of the sterilization solution at the low temperature and transmission of the sterilization solution into the sterilization chamber after atomization, the invention has the advantages of simple structure and convenient use, and avoids the risk of decomposition of the sterilization solution at the high temperature. The sterilization solution can be atomized uniformly and rapidly, and the diffusion effect of the atomized sterilization solution in the sterilization chamber is good, thereby not only reducing the cost, but also improving the reliability and safety. The invention can not only be applied in the sterilization of medical apparatuses, but also can be applied in industries or places needing sterilization such as utensils and the like.
Description
Technical field
The present invention relates to a kind of Sterilization and Disinfection Equipment, especially a kind of low-temperature plasma sterilization device.
Background technology
The whole bag of tricks of sterilization and sterilization has been used for the sterilization and the sterilization of different types of disposable or reusable armarium.In these methods, the method for using steam or dry heat to sterilize and sterilize is extensive use of.Yet the method for this sterilization and sterilization can not be used for the material that produces adverse effect by such heating or steam is carried out disinfection.
The material property and the construction features thereof of endoscopies such as dental mirror, gastroscope, intestinal mirror and medical diagnostic equipments such as artificial intraocular lenses's sheet and some rubber plastic pipe make their sterilization can not adopt traditional High Temperature High Pressure means, can not simply adopt irradiation or chemical method.Because of this class apparatus can not sufficiently sterilised the sterilization cross infection and the malpractice that cause be the difficult problem of puzzlement medical and health sector always.
The plasma sterilization technology is that sterilization is learned the new physical sterilization technology that the field occurs in recent years.Along with medical science and biological development of high-tech, existing sterilization technology can not satisfy some special requirement, and the accurate Medical Instruments of some non-refractories all needs the low temperature sterilization technology as fiber sight glass and other fear hot material.The plasma sterilization technology is after sterilization technologies such as methane, oxirane, glutaraldehyde, another new low temperature sterilization technology.The plasma sterilization technology has overcome long, virose characteristics of said method time, has increased new medical apparatus and instruments low temperature sterilization method.
Plasma is meant constantly and applies energy and make it be dissociated into the state of matter of yin, yang charge particle from the outside to material.Because according to the energy level order, that state of matter is followed successively by is solid-state, liquid, gaseous state, plasma, so plasma is called the 4th attitude traditionally again.Except that being present in nature, plasma also can obtain by manual type.Normally gas is applied electric field, charged particle is quickened.Because ion is heavier, so what be accelerated all is electronics.By electronics with cause ionization than heavy particle collision, finally form plasma.
Low temperature plasma sterilizing technology almost possessed a kind of desirable sterilizing method the full terms that should possess: compare with high pressure steam sterilization, dry heat sterilization, sterilization time is short; With ethylidene oxygen is that the chemosterilization of main body is compared, operative temperature is low; Can be widely used in the sterilization of multiple material and article, particularly after cutting off the electricity supply, the various active particles of generation can disappear in several milliseconds, so need not to ventilate, can not constitute injury to operator, and are safe and reliable.
Notification number is to disclose in the Chinese invention patent description of CN1450917 that a kind of hydrogen peroxide sterilized solution that will produce plasma is supplied with sterilization chamber so that the device that the article in the sterilization chamber are carried out disinfection and sterilize, this device comprises: the automatic transport device, be used for rotating speed, automatically carry the liquid of the generation plasma of fixed minute quantity through first delivery pipe by the control direct current generator; Vaporizer, it is connected to first delivery pipe of automatic transport device, and has the primary heater of the liquid of the supply that is used to evaporate; Secondary heater, it is around being connected second delivery pipe between this vaporizer and the reaction chamber, thereby prevents that any of evaporated liquid in second delivery pipe from condensing; Temperature controller electrically connects first and second heaters, so that control its temperature.
Above-mentioned disinfector is with the hydrogen peroxide sterilized solution high temperature heating vaporization of sending into by vaporizer, send into sterilization chamber then, this mode atomize inhomogeneous and also atomization speed slow, the diffusion effect of atomizing back in the sterilization cabin is also not so good, also has the risk that sterilized solution is at high temperature decomposed simultaneously.In addition, like product in the market adopts similar feed arrangements such as ultrasonic atomization in addition, and this feed arrangement structure is comparatively complicated, and needs to increase extra circuit support.Above-mentioned dual mode has all increased the cost of product itself and the unstable factor in the atomization process.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, a kind of simple in structure, charging high-efficiency reliable low-temperature plasma sterilization device is provided.
For achieving the above object, the technical solution used in the present invention is: a kind of low-temperature plasma sterilization device is provided, comprises the sterilization cabin with charging aperture, this sterilization cabin links to each other with vacuum extractor; The liquid container of splendid attire sterilized solution can be connected with described charging aperture; Be provided with micropore atomization shower nozzle between described liquid container and the charging aperture by valve mechanism control.
Described vacuum extractor can comprise the vacuum pump that is connected in the vacuum orifice in sterilization cabin via vacuum lead, and described vacuum lead is provided with vacuum valve.
Described micropore atomization shower nozzle can be located at described charging aperture place.In addition, also can be connected between described micropore atomization shower nozzle and the described charging aperture, directly form and impact and cause damage being sterilized article with the sterilized solution after avoiding atomizing by buffering pipe.
Preferably, described micropore atomization shower nozzle has 4～6 micropores.
Described micropore can be circular hole.
Described micropore can be positioned at the circumferential arrangement on the axis of described micropore atomization shower nozzle along a center of circle.
Described valve mechanism can be electromagnetic valve.
Described liquid container can directly be communicated with atmosphere.
Low-temperature plasma sterilization device of the present invention is owing to adopted the micropore atomization shower nozzle that sterilized solution is carried out atomizing under the cryogenic conditions, again the sterilized solution after the atomizing is sent into the sterilization cabin, it is simple in structure, easy to use, the risk of having avoided sterilized solution at high temperature to decompose, the sterilized solution atomizing is even and rapid, the diffusion effect of atomizing back in the sterilization cabin is better, has both reduced cost, has improved reliability and safety again.The present invention also can be used for industry or occasion that tableware etc. needs sterilization except that the sterilization that can be used for medical apparatus and instruments.
Description of drawings
Fig. 1 is the overall structure sketch map of embodiments of the invention one;
Fig. 2 is the overall structure sketch map of embodiments of the invention two;
Fig. 3 is the longitudinal section of the micropore atomization shower nozzle in the middle of embodiment illustrated in fig. 1;
Fig. 4 is the axial view of the micropore atomization shower nozzle in the middle of embodiment illustrated in fig. 1;
Fig. 5 is the longitudinal section of the micropore atomization shower nozzle in the middle of embodiment illustrated in fig. 2 two;
Fig. 6 is the axial view of the micropore atomization shower nozzle in the middle of embodiment illustrated in fig. 2 two.
The specific embodiment
Embodiment one
Referring to Fig. 1, the embodiment one of low-temperature plasma sterilization device of the present invention comprises as the lower part: columnar sterilization cabin 1, the left end sealing in this sterilization cabin 1, right-hand member offers and puts, gets that article to be sterilized are used and the vacuum-packed hermatic door 2 of energy, and the circumferential surface in sterilization cabin 1 is provided with the electric heating film of energy temperature control.The shape in sterilization cabin 1 also can be designed to shapes such as spheroidal or rectangle according to actual conditions and actual needs, and its bulkhead material is generally selected rustless steel for use, also can select other alloy material for use.
The top in sterilization cabin 1 has feeding mouth 3, and the bottom has vacuum orifice, is connected in vacuum pump 5 by vacuum lead 4, and vacuum lead 4 is provided with vacuum valve 6.Sterilization also is provided with the vacuometer that shows vacuum on the cabin 1.Be provided with the inner cylinder 8 of eye 7 with holes in the sterilization cabin 1, inner cylinder 8 is isolated with bulkhead 15 insulation in sterilization cabin 1, the inside of inner cylinder 8 is provided with the insulating support 9 that is used to place article to be sterilized, also have some eyelets on the support 9, identical with the effect of eyelet 7 on the inner cylinder 8, all be to be convenient to sterilized solution better at sterilization cabin 1 internal diffusion.
The bulkhead 15 in inner cylinder 8 and sterilization cabin 1 is respectively as two electrodes, be connected with two outfans of high frequency electric source 10, constitute the high-frequency discharge loop, inner cylinder 8 is connected with the positive pole of high frequency electric source 10, the bulkhead 15 in sterilization cabin 1 is connected with the negative pole of high frequency electric source 10 and ground connection, 15 of the bulkheads in inner cylinder 8 and sterilization cabin 1 form discharge range, and this discharge range communicates with feeding mouth 3.
Referring to Fig. 3 and Fig. 4, micropore atomization shower nozzle 12 comprises shell 121 and inner spray road 122 thereof, shell 121 constitutes by a disk 123 with from the disk 123 axial cylinders 124 that protrude, around the center of the end wall 126 of cylinder 124, be distributed with the micropore 125 of 6 circles, one end in spray road 122 is connected with the port of export of liquid-transport pipe-line 14, the other end in spray road 122 is communicated with micropore 125,6 micropores 125 are positioned at the circumferential arrangement on the axis 127 of micropore atomization shower nozzle 12 along a center of circle, and 6 micropores 125 penetrate the end wall 126 of micropore atomization shower nozzle 12 respectively along the direction that is parallel to this axis 127.
The use mode of operation of above-mentioned low-temperature plasma sterilization device is as follows: will need the laying for goods that sterilization handles or be suspended on the support 9; After having closed hermatic door 2, start vacuum pump 5, open vacuum valve 6, reach 2000Pa when following, close vacuum valve 6 by pressure in the vacuometer observation sterilization cabin 1; Hydrogen peroxide sterilized solution with required atomizing is evacuated in the liquid container 13 then, and liquid container 13 communicates with atmosphere; Open electromagnetic valve 11 then, the hydrogen peroxide sterilized solution in the liquid container 13 passes through liquid-transport pipe-line 14 and electromagnetic valve 11 rapidly under powerful suction function, at last by after 12 atomizings of micropore atomization shower nozzle, and whole space in feeding mouth 3 is diffused into sterilization cabin 1; After no longer moving pressure in the cabin 1 of promptly sterilizing and reach balance by vacuometer observation pointer, start high frequency electric source 10, when the bulkhead and the high frequency voltage between the inner cylinder 8 that are applied to sterilization cabin 1 are that 2500～3000 volts, discharge power are not less than 5mW/cm3, when frequency is 8～25MHz, can produce needed plasma by the volume in the cabin 1 of sterilizing; According to the output indication of high frequency electric source 10, can judge in the sterilization cabin 1 whether plasma is arranged; At dissimilar antibacterials or virus, generally after plasma generation, can finish the sterilization overall process in 3 to 15 minutes.The operation of above-mentioned low-temperature plasma sterilization device also can realize automatically by control circuit.
The disinfection operation principle of above-mentioned low-temperature plasma sterilization device is as follows: after being evacuated by vacuum pump 6 in the sterilization cabin 1, open electromagnetic valve 11, liquid hydrogen peroxide promptly is vaporized and diffuses to 1 interior whole space, sterilization cabin.Hydrogen peroxide has stronger bactericidal action, can kill the part bacterial virus on processed article surface in the hydrogen peroxide diffusion process; After adding high frequency voltage between sterilization bulkhead 15 in cabin 1 and the inner cylinder 8, be diffused in the plasma operation material hydrogen peroxide of sterilization in the cabin 1 under the effect of high-frequency electric field, be dissociated into charged particle, form plasma, oxygen-derived free radicals and ultraviolet, the then comprehensive environment of killing that has constituted antibacterial or virus.According to molecular biological viewpoint, antibacterial and virus are charged, electric charge on the human cell membrane helps the absorption of cell to nutrient substance, but work as the time spent of doing that antibacterial or virocyte are subjected to charged particle, CHARGE DISTRIBUTION on it is damaged, will directly influence the physiological activity and the metabolism of antibacterial or virocyte, finally cause death.Remaining bacterial virus is under effect, bombardment and the ultraviolet irradiation of plasma electromagnetic field of high frequency, high energy particle, oxygen-derived free radicals on the processed article surface, its CHARGE DISTRIBUTION is thoroughly destroyed, cell wall, nucleus are caused bacterial virus dead at once by electrical breakdown.
Embodiment two
Referring to Fig. 2, the basic comprising of the embodiment two of low-temperature plasma sterilization device of the present invention is similar to embodiment one, and for ease of understanding, identical parts have adopted identical Reference numeral.The main distinction of present embodiment and embodiment one is the micropore quantity and the arrangement mode of micropore atomization shower nozzle 16, and the position of micropore atomization shower nozzle 16 etc.In the present embodiment, also be connected between micropore atomization shower nozzle 16 and the charging aperture 3, directly form and impact and cause damage being sterilized article with the sterilized solution after avoiding atomizing by buffering pipe 17.
Referring to Fig. 5 and Fig. 6, micropore atomization shower nozzle 12 in the middle of the general structure of micropore atomization shower nozzle 16 and the embodiment one is identical, difference is, around the center of the shell end wall 166 of micropore atomization shower nozzle 16, be distributed with the micropore 165 of 4 circles, 4 micropores 165 are positioned at the circumferential arrangement on the axis 167 of micropore atomization shower nozzle 16 along a center of circle, and 4 micropores 165 lay respectively at foursquare four angle points that are centered close on the axis 167.4 micropores 165 penetrate the end wall 166 of micropore atomization shower nozzle 16 respectively along the direction that is 45 ° angle with axis 167 and outwards disperse.
Only be preferred implementation of the present invention below, should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, and not break away from the protection domain of claim of the present invention.
Claims (8)
1. low-temperature plasma sterilization device comprises:
Sterilization cabin with charging aperture, this sterilization cabin links to each other with vacuum extractor;
The liquid container of the splendid attire sterilized solution that can be connected with described charging aperture;
It is characterized in that:
Be provided with micropore atomization shower nozzle between described liquid container and the charging aperture by valve mechanism control.
2. low-temperature plasma sterilization device according to claim 1 is characterized in that: described micropore atomization shower nozzle is located at described charging aperture place.
3. low-temperature plasma sterilization device according to claim 1 is characterized in that: be connected by buffering pipe between described micropore atomization shower nozzle and the described charging aperture.
4. according to each described low-temperature plasma sterilization device of claim 1 to 3, it is characterized in that: described micropore atomization shower nozzle has 4～6 micropores.
5. according to each described low-temperature plasma sterilization device of claim 1 to 3, it is characterized in that: described micropore is a circular hole.
6. according to each described low-temperature plasma sterilization device of claim 1 to 3, it is characterized in that: described micropore is positioned at the circumferential arrangement on the axis of described micropore atomization shower nozzle along a center of circle.
7. according to each described low-temperature plasma sterilization device of claim 1 to 3, it is characterized in that: described valve mechanism is an electromagnetic valve.
8. according to each described low-temperature plasma sterilization device of claim 1 to 3, it is characterized in that: described liquid container is communicated with atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038771A CN101862464A (en) | 2009-04-14 | 2009-04-14 | Low-temperature plasma sterilization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910038771A CN101862464A (en) | 2009-04-14 | 2009-04-14 | Low-temperature plasma sterilization device |
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| CN101862464A true CN101862464A (en) | 2010-10-20 |
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| CN200910038771A Pending CN101862464A (en) | 2009-04-14 | 2009-04-14 | Low-temperature plasma sterilization device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309266A (en) * | 2011-09-22 | 2012-01-11 | 郭丙仁 | Disinfecting cutter holder and method for disinfecting cutter by using same |
| CN104225638A (en) * | 2014-08-14 | 2014-12-24 | 西安交通大学 | Plasma atomized sterilization device with temperature of lower than 80 DEG C |
| CN106796083A (en) * | 2014-09-25 | 2017-05-31 | 普拉斯莫拜尔提克斯公司 | Method for drying medicine equipment |
| CN107551304A (en) * | 2017-08-11 | 2018-01-09 | 青岛大学附属医院 | Pathology slide chlorination equipment |
| CN109289067A (en) * | 2018-11-16 | 2019-02-01 | 成都凌英科技有限公司 | A kind of instrument sterilizer, apparatus sterilizing system and apparatus sterilizing method |
| CN109465039A (en) * | 2018-11-06 | 2019-03-15 | 孟松君 | A kind of bio-safety emergency protective housing |
-
2009
- 2009-04-14 CN CN200910038771A patent/CN101862464A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309266A (en) * | 2011-09-22 | 2012-01-11 | 郭丙仁 | Disinfecting cutter holder and method for disinfecting cutter by using same |
| CN104225638A (en) * | 2014-08-14 | 2014-12-24 | 西安交通大学 | Plasma atomized sterilization device with temperature of lower than 80 DEG C |
| CN106796083A (en) * | 2014-09-25 | 2017-05-31 | 普拉斯莫拜尔提克斯公司 | Method for drying medicine equipment |
| CN106796083B (en) * | 2014-09-25 | 2020-05-05 | 普拉斯莫拜尔提克斯公司 | Method for drying medical instruments |
| CN107551304A (en) * | 2017-08-11 | 2018-01-09 | 青岛大学附属医院 | Pathology slide chlorination equipment |
| CN109465039A (en) * | 2018-11-06 | 2019-03-15 | 孟松君 | A kind of bio-safety emergency protective housing |
| CN109465039B (en) * | 2018-11-06 | 2021-01-08 | 孙学明 | Emergent guard box of biological safety |
| CN109289067A (en) * | 2018-11-16 | 2019-02-01 | 成都凌英科技有限公司 | A kind of instrument sterilizer, apparatus sterilizing system and apparatus sterilizing method |
| CN109289067B (en) * | 2018-11-16 | 2023-10-10 | 成都九元科技有限公司 | Instrument sterilizer, instrument sterilization system and instrument sterilization method |
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Application publication date: 20101020 |