CN106377778A - Quick high-density plasma sterilization device - Google Patents
Quick high-density plasma sterilization device Download PDFInfo
- Publication number
- CN106377778A CN106377778A CN201610971098.4A CN201610971098A CN106377778A CN 106377778 A CN106377778 A CN 106377778A CN 201610971098 A CN201610971098 A CN 201610971098A CN 106377778 A CN106377778 A CN 106377778A
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- China
- Prior art keywords
- cavity
- sterilization
- sterilizing
- density plasma
- thing
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Classifications
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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
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/14—Plasma, i.e. ionised gases
-
- 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
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/12—Apparatus for isolating biocidal substances from the environment
- A61L2202/122—Chambers for sterilisation
-
- 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
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/24—Medical instruments, e.g. endoscopes, catheters, sharps
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- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention provides a quick high-density plasma sterilization device capable of being automatically replaced. The quick high-density plasma sterilization device comprises a sterilization cavity, a high-density plasma source arranged at an air inlet end of the sterilization cavity and a rotary working platform arranged at an air exhaust end of the sterilization cavity and used for bearing to-be-sterilized articles, wherein two sides of the sterilization cavity are respectively communicated with an article taking cavity and an article conveying cavity; an isolation valve is arranged between the article taking cavity and the sterilization cavity; an isolation valve is arranged between the article conveying cavity and the sterilization cavity; the article taking cavity and the article conveying cavity are internally provided with article moving rods used for putting the to-be-sterilized articles in or taking the to-be-sterilized articles out of the sterilization cavity; cavity covers are arranged on the top ends of the article taking cavity and the article conveying cavity. According to the quick high-density plasma sterilization device provided by the invention, the killing rate and the killing efficiency can be increased by high-density plasma, and germs which cannot be killed by microwave plasma can be killed due to high energy; multi-chamber linkage is realized, automatic replacement of low-pressure sterilization can be realized, and the efficiency is increased.
Description
Technical field
The present invention relates to Low-temperature Plasma Sterilization disinfection technology field is and in particular to a kind of fast high-density plasma
Sterilizing installation.
Background technology
Low pressure plasma sterilization compares the advantage that air is pressed with its own.First, low pressure glow discharge plasma life
One-tenth is easier, and plasma power requirement is than relatively low.Secondly, sterilizing is carried out in airtight container, when taking out after sterilizing
Can directly seal, without sterilization effect occurring repeatedly, can't lead to again because the apparatus after sterilizing seals not in time
Secondary pollution and affect sterilization effect.Again, the basic room temperature of low pressure sterilizing, will not be to non-refractories such as some rubber, plastics
Medical apparatus and instruments cause damage.
The Bactericidal Mechanism of low temperature plasma be reacting gas in the presence of electric field, a portion is dissociated into powered
Particle forms plasma, light free radical and the ultraviolet giving off, and produces strong interaction to antibacterial or virus, and
Thus constitute comprehensive environment is killed to antibacterial or virus, particularly can be formed with life with nearly all through free radical
The molecule of life cell reacts.According to the viewpoint of molecular biology, antibacterial and virus are powered, the electric charge on human cell membrane
Contribute to the absorption to nutrient substance for the cell, but when antibacterial or virus are bombarded by charged particle, electric charge thereon divides
Cloth is destroyed, and just directly affects physiological activity and the metabolism of antibacterial or pathogenic bacteria cell, ultimately results in death.In addition, quilt
Process article bacteria on surfaces or sick endobacillary biomacromolecule (enzyme or DNA) in the high energy particle of plasma, freedom
Under the effect of base and ultraviolet, bombardment and radiation, its CHARGE DISTRIBUTION is entirely destroyed, and such as cell wall, nucleus are electrically shocked and wear,
Cause antibacterial pathogenic bacteria dead rapidly.
But the plasma density that different charging methods produce is different, leads to bactericidal effect difference very big.Due to low pressure
Plasma disinfection can provide a vacuum environment cleaning very much anaerobic, ratio atmosphere plasma sterilizing methods simultaneously
（As DBD method）Cleannes are higher.And it is full of plasma in vacuum environment, on article, the accessible place of every electronics is just
Can clean, compare the comprehensive cleaning of atmosphere plasma no dead angle, sterilizing is more thorough.Low pressure plasma body sterilizing equipment
After cutting off the electricity supply, the various active particles of generation can disappear in several milliseconds, so need not divulge information, will not be to operator
Constitute injury, safe and reliable.
Due to the relation of plasma density, now on the market using Low-temperature Plasma Sterilization sterilizing equipment decontaminating apparatuss major part all
It is using hydrogen peroxide, ozonization.Some equipment adopts corona or intermediate frequency, radio frequency, microwave plasma as sterilization
Sterile medium, its bacterial inactivation rate can improve a lot, and the viable count of antibacterial and virus declines 3.5 and 4.5 orders of magnitude respectively,
But but it is difficult to improve again.Meanwhile, the complete workflow of existing low pressure plasma body sterilizing equipment is on the market now：
Put article to be sterilized, evacuation, electric discharge sterilizing, vacuum breaker, take out article, when putting into every time or taking out article, will vacuum breaker
And evacuation, efficiency is very low, is unfavorable for operating continuously.
Content of the invention
Present invention plasma density produced by the current low pressure plasma disinfection of solution is low, killing effect
Undesirable technical problem, provides a kind of fast high-density plasma body sterilizing equipment of automatic replacing, improves plasma
Plasma density within Sterilization and Disinfection Equipment, sterilization effect improves 10 ~ 100 times, can not destroy vacuum simultaneously
Under the conditions of continuously work, concrete technical scheme is as follows：
A kind of fast high-density plasma body sterilizing equipment, including cavity and the high density being placed in sterilizing cavity inlet end of sterilizing
Plasma source and the rotary table for placing article subject to sterilization being placed in sterilizing cavity pumping end, described sterilizing cavity
Both sides have been respectively communicated with and have taken thing chamber and send thing chamber, take thing chamber and send and be provided with separation valve door between thing chamber and sterilizing cavity, take thing
Chamber and send thing intracavity be provided with for article subject to sterilization are put into or take out sterilizing cavity shifting thing bar；Described shifting thing bar passes through to move
Thing workbench carries out level slip；The described thing chamber and send the top in thing chamber to be provided with chamber lid of taking.
Described high-density plasma source includes heater strip, hot cathode emission source piece, and is arranged in heater strip and Re Yin
The shielding construction of pole emission source piece periphery, this high-density plasma source inspires arc discharge plasma, to rotary work
Article subject to sterilization on platform carry out sterilizing.
The two ends of described heater strip adopt water cooled electrode guiding structure.
Described heater strip and hot cathode emission source piece are connected to heating power supply and excitation power source, described hot cathode transmitting
Source piece is built-in with the thermocouple of measurement temperature, in this thermocouple data feedback input heating power supply.
From above technical scheme, the high-density plasma of the present invention can improve killing rate and kill efficiency, and
And because energy is high, the pathogenic bacteria that microwave plasma cannot be killed can be killed；It is respectively used to put to be sterilized by three cavitys
Article, be put on sterilizing objects, put sterilizing objects, in work process, by automation equipment by article three cavitys it
Between rotation place, setting-out sampling does not delay time of sterilization, continuously can work, significantly under conditions of not destroying vacuum
Improve existing process, it is possible to achieve continuous automated production, no longer allow vacuum valve and vacuum suction becomes the bottle of efficiency
Neck.
Brief description
Fig. 1 is structural representation during sterilizing state of the present invention；
Fig. 2 send structural representation during thing state for the present invention；
Fig. 3 takes structural representation during thing state for the present invention；
Fig. 4 is the side view moving thing bar and rotary table in the present invention；
Fig. 5 is the top view moving thing bar and rotary table in the present invention.
In figure：10th, sterilize cavity, 11, article subject to sterilization, 12, sterilizing objects, 20, high-density plasma source, 21,
Heater strip, 22, hot cathode emission source piece, 23, shielding construction, 24, heating power supply, 25, excitation power source, 30, rotary table,
40th, take thing chamber, 50, send thing chamber, 61-62, separation valve door, 71-72, move thing bar, 81-82, move thing workbench, 91-92, chamber lid.
Specific embodiment
The sterilizing installation of the present invention can be used for following field：Food surface, prepacked food, tableware packaging bag, thermal sensitivity
Medical apparatus and instruments, metal medical appliance, medical electronics probe sensor, small-sized Reusability medical product, medical bio material
Material, old bank note, old coin, antique porcelain historical relic etc..Sterilizing only needs several minutes, safe and reliable, environment friendly and pollution-free.
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail, respectively implements describing the present invention in detail
Before the technical scheme of example, involved noun and term are explained, in this manual, title is identical or label phase
Same part represents similar or identical structure, and is only limitted to the purpose illustrated.
As shown in figure 1, the sterilizing installation of the present invention takes 40, one, thing chamber by the sterilizing cavity 10, of an evacuation
50, one, thing chamber high-density plasma source 20 and a rotary table 30 being used for carrying article subject to sterilization is sent to constitute,
Wherein high-density plasma source is placed in the inlet end of sterilizing cavity, and rotary table is placed in the pumping end of sterilizing cavity, this height
Density plasma source excitation goes out arc discharge plasma, carries out sterilizing to the article subject to sterilization on rotary table.
The density of the plasma producing in the present invention is 1 × 1011 ~ 1 × 1012/cm3Magnitude, more existing than on market penetrates
Frequently, the density of microwave magnetron sputtering plasma is high 10 ~ 100 times, kills more thorough, the time is shorter in hgher efficiency.For avoiding sky
The unclean granule or particle impact to sterilization effect in gas, when ultra-high purity requires, sterilizing intracavity is true
Reciprocal of duty cycle is reduced to below 10-4Pa, then pours high-purity gas generation plasma, can make the plasma composition of sterilizing more
Plus it is single clean.
Described high-density plasma source 20 includes heater strip 21, hot cathode emission source piece 22, and is arranged in heater strip
The peripheral shielding construction 23 with hot cathode emission source piece, shielding construction can prevent amount of heat to be radiated in vacuum chamber, in order to
The unnecessary heat radiation of shielding sterilizing inside cavity.
Described heater strip 21 and hot cathode emission source piece 22 are connected to heating power supply 24 and excitation power source 25, described heat
Emission of cathode source piece is built-in with the thermocouple of measurement temperature, in this thermocouple data feedback input heating power supply, accordingly can essence
Really control heater strip power, make temperature on hot cathode emission source piece keep temperature constant state.
The two ends of described heater strip 21 adopt water cooled electrode guiding structure, are used deionized water or pure water to be situated between as cooling
Matter, in order to cool down heater strip erection joint, this water cooled electrode imports the insulation also keeping and sterilizing cavity between simultaneously.
In the present embodiment, hot cathode emission source piece 22 adopts LaB6, can produce high-density plasma, carries out low temperature etc.
Gas ions sterilizing, sterilization.LaB6 is blocks of solid, when using filament heating to more than 1600 DEG C behind under vacuum conditions, greatly
Amount launching electronics, be now passed through argon, these electron bombardment argon molecules, produce electron avalanche effect, obtain more electronics, from
Son and neutral particle.Now plasma electrical source P2 starts working, and excites generation high-density plasma.Band in plasma
Charged particle bombardment antibacterial or pathogenic bacteria cell, directly contribute cell wall, nucleus are punctured by particle, cause antibacterial pathogenic bacteria dead rapidly
Die.Because its plasma density high-energy is high, the good efficiency high of extinction effects cannot be killed it is possible to kill microwave plasma
Pathogenic bacteria.
The described both sides taking thing chamber 40 and sending thing chamber 50 to be separately positioned on sterilizing cavity, and be provided with and sterilizing cavity between
Separation valve door 61,62, takes thing chamber and send the top in thing chamber to be provided with chamber lid 91,92, and setting chamber lid is conveniently placed and take article,
Separation valve door carries out folding according to different working conditions, in order to keep the vacuum of cavity that sterilizes.Take thing chamber and send thing intracavity
It is additionally provided with the shifting thing bar 72 for putting into article subject to sterilization, and for article subject to sterilization being taken out the shifting thing of sterilizing cavity
Bar 71, this described thing bar that moves carries out level slip by the shifting thing workbench 81,82 in outside between cavity.Open in sterilization chamber
Close both sides separation valve door when beginning work, article subject to sterilization can be positioned on the shifting thing bar sending in thing chamber simultaneously, with
When can also take away in thing chamber move thing bar on sterilization article, realize the continuous of low pressure plasma disinfection
Automatically operate, sample presentation, sterilizing, sampling the flow work, do not affect vacuum, do not delay sterilization time, without waiting for.Treat in feeding
Sterilizing article and taking away during sterilizing article, both can stop plasma can also maintaining plasma all the time, dimension
Hold the vacuum keeping when plasma sending thing chamber and taking thing chamber both sides.
Described shifting thing workbench 81,82 can drive shifting thing bar 71,72 to move along a straight line in left-right direction, and motion path is
By take thing chamber and send thing chamber move to sterilizing cavity in the middle of rotary table.Move thing bar 71,72 front ends and rotary table 30
Between breach complementary, with reference to Figure 4 and 5, move thing bar and may be inserted in workbench breach, this time shift thing workbench can be carried out vertically
The falling motion in direction, article 11 subject to sterilization are positioned on workbench, then move along a straight line to return to and send in thing chamber.Take thing
When motion path just contrary, linear motion will move in thing bar front end insertion workbench breach before this, then was lifted up shifting
Thing bar, sterilization is completed article and holds up, after linearly return to and take thing chamber.
The present invention enables multi-chamber linkage, the automatic replacing of achievable low pressure sterilizing, increases efficiency, specific works are former
Reason is as follows：
State after the completion of sterilizing, as shown in figure 3, closing the chamber lid 91 taking thing chamber 40, opens the separation valve door 61 taking thing chamber side.
Moving thing workbench 81 drives shifting thing bar 71 for linear motion, moves in thing bar front end insertion rotary table breach, then moves thing bar
Move upwards, hold up sterilizing objects 12, and return to and take in thing chamber.
Send into the state of article subject to sterilization as shown in Fig. 2 shifting thing bar 71 is return after taking thing chamber, close and take thing chamber separation valve door
61, close the chamber lid 92 sending thing chamber 50, open the separation valve door 62 sending thing chamber side.Move and placed article subject to sterilization on thing bar 72
11, move thing workbench 82 drive move thing bar for linear motion, move thing bar nose motion to above workbench after move downward, will treat
Sterilizing article falls on the table, and then shifting thing bar returns to and send in thing chamber.Separation valve door 62 is closed after returning.Return to Fig. 1's
State.Described chamber lid can seal and take thing chamber and send thing chamber, close, to keep vacuum, so go out before opening separation valve door
Bacterium intracavity remains vacuum state.
The above embodiment is only that the preferred embodiment of the present invention is described, the not model to the present invention
Enclose and be defined, on the premise of without departing from design spirit of the present invention, the technical side to the present invention for the those of ordinary skill in the art
Various modifications and improvement that case is made, all should fall in the protection domain of claims of the present invention determination.
Claims (5)
1. a kind of fast high-density plasma body sterilizing equipment is it is characterised in that including sterilizing cavity (10) and being placed in sterilizing
The high-density plasma source (20) of cavity inlet end and the rotation for placing article subject to sterilization being placed in sterilizing cavity pumping end
Revolving worktable (30), the both sides of described sterilizing cavity (10) have been respectively communicated with and take thing chamber (40) and send thing chamber (50), take thing chamber with
Send and be provided with separation valve door between thing chamber and sterilizing cavity, take thing chamber and send thing intracavity to be provided with for putting into article subject to sterilization
Or take out the shifting thing bar of sterilizing cavity, described take thing chamber (40) and send the top in thing chamber (50) to be provided with chamber lid.
2. fast high-density plasma body sterilizing equipment according to claim 1 is it is characterised in that described shifting thing bar passes through
Move thing workbench and carry out level slip.
3. fast high-density plasma body sterilizing equipment according to claim 1 it is characterised in that described high density etc. from
Daughter source (20) includes heater strip (21), hot cathode emission source piece (22), and is arranged in heater strip and hot cathode emission source piece
The shielding construction (23) of periphery, this high-density plasma source inspires arc discharge plasma, on rotary table
Article subject to sterilization carry out sterilizing.
4. fast high-density plasma body sterilizing equipment according to claim 3 is it is characterised in that described heater strip (21)
Two ends adopt water cooled electrode guiding structure.
5. high-density plasma reinforced chemical vapor deposition apparatus according to claim 3 are it is characterised in that described add
Heated filament (21) and hot cathode emission source piece (22) are connected to heating power supply (24) and excitation power source (25), and described hot cathode is sent out
The source piece of penetrating is built-in with the thermocouple of measurement temperature, in this thermocouple data feedback input heating power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610971098.4A CN106377778A (en) | 2016-10-27 | 2016-10-27 | Quick high-density plasma sterilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610971098.4A CN106377778A (en) | 2016-10-27 | 2016-10-27 | Quick high-density plasma sterilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106377778A true CN106377778A (en) | 2017-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610971098.4A Pending CN106377778A (en) | 2016-10-27 | 2016-10-27 | Quick high-density plasma sterilization device |
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| Country | Link |
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| CN (1) | CN106377778A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030174810A1 (en) * | 2002-03-12 | 2003-09-18 | Steris Inc. | Method and apparatus for destroying microbial contamination of mail |
| CN1658909A (en) * | 2002-06-17 | 2005-08-24 | 互曼迈迪泰克公司 | Plasma sterilizer having dehumidifier |
| CN202482421U (en) * | 2012-02-11 | 2012-10-10 | 伍振良 | Glass magnetic control multi-arc ion plating machine |
| CN103298233A (en) * | 2013-05-10 | 2013-09-11 | 合肥聚能电物理高技术开发有限公司 | Novel high-density negative pole plasma source |
| CN205115597U (en) * | 2015-10-30 | 2016-03-30 | 东莞市中创塑胶制品有限公司 | Continuous type plasma vacuum coating device |
| CN207012353U (en) * | 2016-10-27 | 2018-02-16 | 合肥优亿科机电科技有限公司 | A kind of fast high-density plasma body sterilizing equipment |
-
2016
- 2016-10-27 CN CN201610971098.4A patent/CN106377778A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030174810A1 (en) * | 2002-03-12 | 2003-09-18 | Steris Inc. | Method and apparatus for destroying microbial contamination of mail |
| CN1658909A (en) * | 2002-06-17 | 2005-08-24 | 互曼迈迪泰克公司 | Plasma sterilizer having dehumidifier |
| CN202482421U (en) * | 2012-02-11 | 2012-10-10 | 伍振良 | Glass magnetic control multi-arc ion plating machine |
| CN103298233A (en) * | 2013-05-10 | 2013-09-11 | 合肥聚能电物理高技术开发有限公司 | Novel high-density negative pole plasma source |
| CN205115597U (en) * | 2015-10-30 | 2016-03-30 | 东莞市中创塑胶制品有限公司 | Continuous type plasma vacuum coating device |
| CN207012353U (en) * | 2016-10-27 | 2018-02-16 | 合肥优亿科机电科技有限公司 | A kind of fast high-density plasma body sterilizing equipment |
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Application publication date: 20170208 |