CN106581709A - Atmospheric plasma sterilizer used in medical device sterilization apparatus - Google Patents
Atmospheric plasma sterilizer used in medical device sterilization apparatus Download PDFInfo
- Publication number
- CN106581709A CN106581709A CN201611267458.9A CN201611267458A CN106581709A CN 106581709 A CN106581709 A CN 106581709A CN 201611267458 A CN201611267458 A CN 201611267458A CN 106581709 A CN106581709 A CN 106581709A
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- CN
- China
- Prior art keywords
- plasma
- sterilization
- steriliser
- medical instrument
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
-
- 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
- A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
-
- 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
- A61L2202/15—Biocide distribution means, e.g. nozzles, pumps, manifolds, fans, baffles, sprayers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Plasma Technology (AREA)
Abstract
The invention provides an atmospheric plasma sterilizer used in a medical device sterilization apparatus. The atmospheric plasma sterilizer comprises a plasma generating power source, a plasma jet head and a mounting member. The mounting member has a C-shaped structure. The plasma jet head is connected to one end of the mounting member. The plasma jet head is connected to one pole of the plasma generating power source through a high voltage insulated cable and the other pole of the plasma generating power source is connected to a mounting table. The plasma jet head comprises a cylindrical casing formed from a nozzle, a head housing and a rear cylinder connected in an order, an inner plasma generating device and an insulating layer between the cylindrical casing and the plasma generating device. The rear cylinder is connected to the mounting member of the plasma sterilizer. The atmospheric plasma sterilizer used in a medical device sterilization apparatus can carry out sterilization and disinfection under atmospheric conditions, does not need a low air pressure environment, and can realize sterilization and disinfection through placement of the surface of a medical apparatus to be treated under injection of a plasma flow.
Description
Technical field
The present invention relates to sterilization of medical instrument field, particularly for the atmosphere plasma in sterilization of medical instrument equipment
Steriliser.
Background technology
In plasma sterilization technology, the sterilizing of low pressure glow discharge plasma is commonly used, but it is existing low
Atmospheric pressure plasma sterilizing installation limitation is big：One is to need subnormal ambient, needs to be evacuated down to below 100Pa with vacuum pump,
When the low pressure that may obtain needs in medical apparatus and instruments containing water or when liquid or dirt；Two is low pressure plasma
Vacuum must could be obtained in vacuum room, the size and electrode spacing of vacuum chamber just determine the size of treated object, gather around
The treated object for having excessive or unaccommodated size cannot be put in vacuum room；Three are because needing evacuation, sterilizing efficiency
It is very low.
The content of the invention
In order to solve the above problems, the invention provides the atmosphere plasma in a kind of equipment for sterilization of medical instrument
Steriliser, the technical scheme for adopting for：
There is power supply, plasma for the atmosphere plasma steriliser in sterilization of medical instrument equipment, including plasma
Injection head and installed part, the installed part is C fonts, and plasma jet head is connected with one end of installed part, plasma
Injection head is connected by the pole that High-Voltage Insulation cable occurs power supply with plasma, and plasma occurs another pole of power supply
Connection erecting bed；The cylinder that the plasma jet head is formed by the nozzle, handpiece case and rear cylinder that are sequentially connected
Housing, its internal plasma producing apparatus and the composition of insulating barrier between the two, the rear cylinder and plasma sterilizer
Installed part connects；The handpiece case inner side is ledge structure, and its step surface is fixed insulating barrier with the end face of rear cylinder；The insulation
Layer is made up of first insulating cylinder and columnar second insulating cylinder of ledge structure, and the step surface of the first insulating cylinder and second insulate
Cylinder is compressed with air inlet grill；Plasma generator includes：The interior electrode close with nozzle inner side, the interior electrode be fixed on into
On gas grid, the rear end of interior electrode is provided with columned endoporus one, and in the endoporus one copper electrode is provided with, and the rear end of the copper electrode sets
There are columned endoporus two, the inside high voltage insulated cable for being fixed with connection copper electrode and plasma generation power supply of endoporus two
Cable.
Preferably, the air inlet grill is connected with interior electrode by internal and external threads, and nozzle passes through internal and external threads with handpiece case
Connection.
Preferably, the interior electrode is stainless steel.
Preferably, the rear cylinder is provided with the circular hole one for being passed through High-Voltage Insulation cable and for installing air-flow air inlet pipe
The circular hole two in road.
Preferably, several spiral type through holes, through hole connection air inlet grill or so two is provided with the surface of the air inlet grill
Air chamber, the air-flow for passing through is swirling eddy.
Preferably, the inner side of the front end of the interior electrode and nozzle is region of discharge, minimum range between the two is 3 ~
20mm。
Preferably, the nozzle is made up of the front end of hollow cylindrical and the rear end of taper, the internal diameter of the cylindric front end
For 1 ~ 5mm.
Preferably, the stress levels of first insulating cylinder, the second insulating cylinder and High-Voltage Insulation cable are higher than 30kV.
Provided by the present invention for the atmosphere plasma steriliser in sterilization of medical instrument equipment, have the beneficial effect that：
Operationally, some active component for being produced region of discharge by high velocity air, excited state particle, even charged particle are led
Go out region of discharge so as to spray to need sterilize object be located working region, from nozzle spray a large amount of electronics, ion,
Active particle and the neutral particle comprising gas molecule, i.e., the mixture comprising plasma Yu high-speed gas, its is medium
Gas ions carry out sterilization to processed surface, and surface of the high-speed gas simultaneously also to needing sterilizing object is cleaned, does
It is dry；It can avoid the equipment surfaces caused because plasma etching is acted on from damaging while to metallic weapon surface disinfection
Wound, ensure that the mechanical strength and toughness of metallic weapon.
The nozzle of the present invention designs the high-speed gas for causing it internal can also further be suppressed be produced in discharge process
The problem that raw discharge channel is excessively concentrated, is conducive to the stability and uniformity of plasma；The cone space of its rear end is strong
The high velocity air for compeling to pass through enters small bore passage by heavy in section passage, produces all putting in a region while compressed air stream
Plasma all derive, while also protection is put a region rear portion and will not produce electric discharge and particle sputtering.
There is power supply in the plasma of plasma sterilizer and installed part keeps ground connection, increased the safety of operation
Property.
Provided by the present invention for the atmosphere plasma steriliser in sterilization of medical instrument equipment, can be in atmospheric condition
Under carry out sterilization, hypobaric is not required to, as long as the processed surface of medical apparatus and instruments is placed in into the injection of plasma stream
Under can complete sterilization process.
Description of the drawings
By the detailed description for reading hereafter preferred implementation, various other advantages and benefit is common for this area
Technical staff will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred implementation, and is not considered as to the present invention
Restriction.And in whole accompanying drawing, it is denoted by the same reference numerals identical part.In the accompanying drawings：
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the present invention for the scheme of installation in sterilization of medical instrument equipment
Wherein, 101 is nozzle, and 102 is interior electrode, and 103 is handpiece case, and 104 is the first insulating cylinder, and 105 is air inlet grill, 106
For the second insulating cylinder, 107 is rear cylinder, and 108 is erecting bed, and 109 is copper electrode, and 110 is that plasma occurs power supply, and 111 are height
Pressure insulation cable.
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in accompanying drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure and the reality that should not be illustrated here
The mode of applying is limited.On the contrary, there is provided these embodiments are able to be best understood from the disclosure, and can be by this public affairs
The scope opened it is complete convey to those skilled in the art.
According to the embodiment of the present invention, as shown in Figure 1, the nozzle 101 of plasma sterilizer 1 is by hollow cylindrical
Front end and taper rear end composition, the internal diameter of the cylindric front end is 1 ~ 5mm.Nozzle 101 is installed by internal and external threads connection
On handpiece case 103, handpiece case 103 is installed together with the rear cylinder 107 and erecting bed 108 at its rear portion, sets on cylinder 107 afterwards
There is the 107a of circular hole one for the being passed through High-Voltage Insulation cable and 107b of circular hole two for installing air-flow admission line.
The inner side of handpiece case 103 is ledge structure, and wherein the end face of step surface 103a and rear cylinder 107 compresses first and insulate
The insulating cylinder 106 of cylinder 104 and second, the stress levels of the insulating cylinder 106 of the first insulating cylinder 104 and second are higher than 30kV；First is exhausted
Edge cylinder 104 is ledge structure, and its step surface 104a and the second insulating cylinder 106 compress air inlet grill 105.On the surface of air inlet grill 105
2 ~ 6 spiral type through holes are provided with, through hole connects two air chambers of air inlet grill 105 or so so that the air-flow for passing through is swirling eddy；
There is female thread 105a on air inlet grill 105, the interior electrode 102 of stainless steel is connected with female thread 105a.Before interior electrode 102
End is 3 ~ 20mm with the inner minimum distance of nozzle 101, and this part defines region of discharge, and plasma is produced here at first
It is raw.The front end of interior electrode 102 produces plasma, Jing high-speed gas blowout nozzle with the inner of nozzle 101 after alternating current is passed through
101, plasma jet is made to working region.There is cylindrical bore one inside interior electrode 102, endoporus one is provided with copper electrode
109, there is the 109a of cylindrical bore two rear end of copper electrode 109, and inside the 109a of endoporus two High-Voltage Insulation cable has been screwed
111, High-Voltage Insulation cable 111 connects copper electrode 109 through the 107a of circular hole one and plasma occurs power supply 110, plasma
Another pole connection erecting bed 108 of power supply 110 is simultaneously grounded, and the stress levels of the High-Voltage Insulation cable are higher than 30kV.
It is alternating current power supply that the plasma occurs power supply 110, and supply voltage is 3 ~ 30kV, a-c cycle comprising low frequency, in
Frequently, high frequency, radio frequency, microwave.
The present invention operation technological process be：
1. connect plasma jet head using high voltage cable and plasma occurs power supply.Switch on power, you can in electric discharge
Region produces plasma,
2. after being passed through the gas of 0.1 ~ 0.5MPa air pressure, plasma is derived discharge space region by high velocity air so as to sprayed
On treated object surface to working region.The particle with energy is produced with the antibacterial of medical apparatus surface in plasma
Effect, sterilizing.
Operationally, some active component, excited state particle, the even charged grain for being produced region of discharge by high velocity air
Son derive region of discharge so as to spray to need sterilize object be located working region, from nozzle spray a large amount of electronics, from
Son, active particle and the neutral particle comprising gas molecule, i.e., the mixture comprising plasma Yu high-speed gas, wherein
Plasma carries out sterilization to processed surface, high-speed gas are also cleaned to the surface of the object that needs to sterilize simultaneously,
It is dried；It can avoid the equipment surfaces caused because plasma etching is acted on while to metallic weapon surface disinfection
Damage, ensure that the mechanical strength and toughness of metallic weapon.
The nozzle of the present invention designs the high-speed gas for causing it internal can also further be suppressed be produced in discharge process
The problem that raw discharge channel is excessively concentrated, is conducive to the stability and uniformity of plasma；The cone space of its rear end is strong
The high velocity air for compeling to pass through enters small bore passage by heavy in section passage, produces all putting in a region while compressed air stream
Plasma all derive, while also protection is put a region rear portion and will not produce electric discharge and particle sputtering.
There is power supply in the plasma of plasma sterilizer and installed part keeps ground connection, increased the safety of operation
Property.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
All should be included within the scope of the present invention.Therefore, protection scope of the present invention should be described with the protection model of claim
Enclose and be defined.
Claims (8)
1. the atmosphere plasma steriliser in a kind of equipment for sterilization of medical instrument, it is characterised in that：Including plasma
Generation power supply, plasma jet head and installed part, the installed part is C fonts, plasma jet head and installed part
One end is connected, and plasma jet head is connected by the pole that High-Voltage Insulation cable occurs power supply with plasma, plasma
There is another pole connection erecting bed of power supply in body；
The plasma jet head of the plasma sterilizer is formed by the nozzle, handpiece case and rear cylinder being sequentially connected
Cylindrical housings, its internal plasma producing apparatus and insulating barrier between the two constitute, the rear cylinder and plasma
The installed part connection of steriliser；
The handpiece case inner side is ledge structure, and its step surface is fixed insulating barrier with the end face of rear cylinder；
The insulating barrier is made up of first insulating cylinder and columnar second insulating cylinder of ledge structure, the step surface of the first insulating cylinder
Air inlet grill is compressed with the second insulating cylinder；
Plasma generator includes：The interior electrode close with nozzle inner side, the interior electrode is fixed on air inlet grill, interior electrode
Rear end is provided with columned endoporus one, and in the endoporus one copper electrode is provided with, and the rear end of the copper electrode is provided with columned endoporus
Two, the inside High-Voltage Insulation cable for being fixed with connection copper electrode and plasma generation power supply of endoporus two.
2. a kind of as claimed in claim 1 for the atmosphere plasma steriliser in sterilization of medical instrument equipment, its feature
It is：The air inlet grill is connected with interior electrode by internal and external threads, and nozzle is connected with handpiece case by internal and external threads.
3. a kind of as claimed in claim 1 for the atmosphere plasma steriliser in sterilization of medical instrument equipment, its feature
It is：The interior electrode is stainless steel.
4. a kind of as claimed in claim 1 for the atmosphere plasma steriliser in sterilization of medical instrument equipment, its feature
It is：The rear cylinder is provided with the circular hole one for being passed through High-Voltage Insulation cable and the circular hole for installing air-flow admission line
Two.
5. a kind of as claimed in claim 1 for the atmosphere plasma steriliser in sterilization of medical instrument equipment, its feature
It is：Several spiral type through holes, through hole connection air inlet grill or so two air chambers are provided with the surface of the air inlet grill, are passed through
Air-flow is swirling eddy.
6. a kind of as claimed in claim 1 for the atmosphere plasma steriliser in sterilization of medical instrument equipment, its feature
It is：The front end of the interior electrode is region of discharge with the inner side of nozzle, and minimum range between the two is 3 ~ 20mm.
7. a kind of as claimed in claim 1 for the atmosphere plasma steriliser in sterilization of medical instrument equipment, its feature
It is：The nozzle is made up of the front end of hollow cylindrical and the rear end of taper, and the internal diameter of the cylindric front end is 1 ~ 5mm.
8. a kind of as claimed in claim 1 for the atmosphere plasma steriliser in sterilization of medical instrument equipment, its feature
It is：The stress levels of first insulating cylinder, the second insulating cylinder and High-Voltage Insulation cable are higher than 30kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267458.9A CN106581709A (en) | 2016-12-31 | 2016-12-31 | Atmospheric plasma sterilizer used in medical device sterilization apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267458.9A CN106581709A (en) | 2016-12-31 | 2016-12-31 | Atmospheric plasma sterilizer used in medical device sterilization apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106581709A true CN106581709A (en) | 2017-04-26 |
Family
ID=58582020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611267458.9A Pending CN106581709A (en) | 2016-12-31 | 2016-12-31 | Atmospheric plasma sterilizer used in medical device sterilization apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106581709A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI685356B (en) * | 2019-01-07 | 2020-02-21 | 張家銘 | Handheld cold plasma generator |
| CN111658798A (en) * | 2020-06-15 | 2020-09-15 | 安徽静斯德科技有限公司 | Mask disinfection and sterilization method based on plasma |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1720417A (en) * | 2002-12-30 | 2006-01-11 | 捷和实业有限公司 | Air purification device |
| CN201399098Y (en) * | 2008-12-30 | 2010-02-10 | 王龙哲 | Plasma micro-beam current generator |
| CN104013985A (en) * | 2014-06-24 | 2014-09-03 | 中山大学 | Portable micro-plasma sterilizer |
| CN106028616A (en) * | 2016-07-13 | 2016-10-12 | 赣南师范学院 | Gliding arc discharge plasma jet generation device and method thereof |
-
2016
- 2016-12-31 CN CN201611267458.9A patent/CN106581709A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1720417A (en) * | 2002-12-30 | 2006-01-11 | 捷和实业有限公司 | Air purification device |
| CN201399098Y (en) * | 2008-12-30 | 2010-02-10 | 王龙哲 | Plasma micro-beam current generator |
| CN104013985A (en) * | 2014-06-24 | 2014-09-03 | 中山大学 | Portable micro-plasma sterilizer |
| CN106028616A (en) * | 2016-07-13 | 2016-10-12 | 赣南师范学院 | Gliding arc discharge plasma jet generation device and method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI685356B (en) * | 2019-01-07 | 2020-02-21 | 張家銘 | Handheld cold plasma generator |
| CN111658798A (en) * | 2020-06-15 | 2020-09-15 | 安徽静斯德科技有限公司 | Mask disinfection and sterilization method based on plasma |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |
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| RJ01 | Rejection of invention patent application after publication |