WO2013105659A1 - 活性種照射装置、活性種照射方法及び活性種被照射物作製方法 - Google Patents
活性種照射装置、活性種照射方法及び活性種被照射物作製方法 Download PDFInfo
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- WO2013105659A1 WO2013105659A1 PCT/JP2013/050465 JP2013050465W WO2013105659A1 WO 2013105659 A1 WO2013105659 A1 WO 2013105659A1 JP 2013050465 W JP2013050465 W JP 2013050465W WO 2013105659 A1 WO2013105659 A1 WO 2013105659A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/087—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
-
- 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
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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
- A61L2/0005—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts
- A61L2/0011—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts using physical methods
-
- 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
- A61L2/03—Electric current
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- 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
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
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- 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
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
- H05H1/2443—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes the plasma fluid flowing through a dielectric tube
- H05H1/2465—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes the plasma fluid flowing through a dielectric tube the plasma being activated by inductive coupling, e.g. using coiled electrodes
-
- 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
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
- B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
- B01J2219/0809—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes employing two or more electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0803—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy
- B01J2219/0805—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges
- B01J2219/0807—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes
- B01J2219/0815—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electric or magnetic energy giving rise to electric discharges involving electrodes involving stationary electrodes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
Definitions
- the present invention relates to an active species irradiation apparatus, an active species irradiation method, and an active species irradiated object preparation method.
- the epoch-making sterilization power was obtained by the low pH method described in Patent Document 1, and the physicochemical mechanism has been known.
- the plasma discharge device the LF plasma jet described in Patent Document 2 was used for sterilization. Only active species are generated, and the plasma discharge device is not particularly elaborate.
- the present invention provides an active species irradiation apparatus and an active species irradiation method capable of efficiently irradiating active species (active oxygen and active nitrogen) with a non-contact plasma source with respect to an irradiation object. Furthermore, it aims at providing the active species irradiated object preparation method.
- an active species irradiation apparatus is a chamber into which a plasma generation gas and an active species generation gas flow, and a chamber having an active species irradiation port through which active species are irradiated.
- an upstream electrode that is part of the chamber and is located in an upstream part of the flow of the plasma generating gas, and is part of the chamber and is located in a downstream part of the flow of the plasma generating gas relative to the upstream electrode.
- the active species irradiation apparatus includes a downstream electrode, and the chamber is configured such that the active species generation gas flows between the upstream electrode and the active species irradiation port.
- the chamber includes a plasma generation region where the plasma is generated, and the active species is disposed between the plasma generation region and the active species irradiation port.
- the product gas is configured to flow in.
- the chamber is configured to have an inlet for the plasma generation gas and an inlet for the active species generation gas.
- the chamber includes a first tube portion having an inlet for the plasma generation gas, a second tube portion having an inlet for the active species generation gas, and the activity.
- a third tube portion having a seed irradiation port, and the first tube portion, the second tube portion, and the third tube portion are connected in one place to form a multi-way tube.
- the chamber includes a fourth tube portion having the plasma generation gas inlet and the active species irradiation port, and the active species generation gas inlet.
- a fifth pipe portion having an outlet for the active species product gas, and the fourth pipe portion includes an outlet portion for the active species product gas in the fifth pipe portion.
- the chamber is configured such that the active species product gas flows between the upstream electrode and the downstream electrode.
- the chamber is configured such that the active species generation gas flows between the downstream electrode and the active species irradiation port.
- the active species irradiation device further includes a needle member connectable to the active species irradiation port, and the active species are irradiated from the tip of the needle member.
- the active species are a hydroxy radical, a superoxide anion radical, a hydroperoxyl radical, a singlet oxygen, an oxygen atom, and peroxynitrite (ONOO ⁇ / ONOH). At least one of them.
- a higher voltage is applied to the upstream electrode than to the downstream electrode.
- a characteristic configuration of the active species irradiation method according to the present invention is a chamber into which a plasma generation gas and an active species generation gas flow, and a chamber having an active species irradiation port through which the active species are irradiated.
- an upstream electrode that is part of the chamber and is located in an upstream part of the flow of the plasma generating gas, and is part of the chamber and is located in a downstream part of the flow of the plasma generating gas relative to the upstream electrode.
- a method of irradiating active species using an active species irradiation apparatus including a downstream electrode, wherein a plasma generation step of generating plasma by flowing in the plasma generating gas, the upstream electrode and the active species irradiation port
- the active species generating gas flows in between the active species to generate the active species, and the active species irradiation step of irradiating the active species from the active species irradiation port.
- a plasma generation region is formed by executing the plasma generation step, and the active species generation step is performed between the plasma generation region and the active species irradiation port. This is performed by flowing the activated species product gas.
- the active species irradiation object manufacturing method is characterized in that a plasma generation gas and an active species generation gas flow into a chamber into which an active species is irradiated.
- a method for producing an active species irradiation object using an active species irradiation apparatus including a downstream electrode located in a part, wherein a plasma generation step of generating plasma by flowing in the plasma generation gas, and the upstream electrode
- the active species generating gas flows between the active species irradiation port and the active species irradiation port to generate the active species, and the target is irradiated with the active species from the active species irradiation port
- the object is water
- the active species irradiated object is active species-containing water containing a larger amount of active species than the water.
- the active species irradiation apparatus further includes a needle-like member connectable to the active species irradiation port, and the active species irradiation step includes the needle A step of irradiating the inside of the object with the active species from the tip of the member, wherein the object is a root canal, and the active species irradiated object is an active species-treated root canal.
- the schematic diagram of the active species irradiation apparatus 100 by this embodiment is shown. It is a flowchart which shows the active species irradiation method using the active species irradiation apparatus 100 by this embodiment. The graph which shows the active species production
- generation amount using a conventional apparatus is shown.
- the schematic diagram of the activated species irradiation apparatus 400 which concerns on this embodiment is shown.
- the graph which shows the relationship between the oxygen supply amount to the active species irradiation apparatus 100 and bactericidal power is shown.
- the graph which shows the comparison with the system (medium mixing system, post-mixing system) based on this invention (premixing system) and the system based on this invention is shown.
- the active species irradiation apparatus the active species irradiation method, and the active species irradiated object preparation method of the present invention will be described.
- the present invention is not intended to be limited to the configurations described in the embodiments and drawings described below, and includes configurations equivalent to those configurations.
- FIG. 1 is a schematic diagram of an active species irradiation apparatus 100 according to the present embodiment.
- the active species irradiation apparatus 100 can irradiate the target A with active species to produce an active species irradiated object.
- the active species irradiation apparatus 100 includes a chamber 110, an upstream electrode 120, a downstream electrode 130, and a plasma power source 140.
- the plasma generation gas and the active species generation gas flow into the chamber 110.
- the plasma generation gas is helium gas, and the active species generation gas is oxygen gas.
- the chamber 110 includes a plasma generation gas inlet 110a, an active species generation gas inlet 110b, and an active species irradiation port 110c.
- the active species are irradiated from the active species irradiation port 110c.
- the active species is a superoxide anion radical.
- the active species is irradiated to the object A from the active species irradiation port 110c to produce an active species irradiated object.
- the object A is water
- the active species irradiated object is active species-containing water containing a larger amount of active species than water.
- the chamber 110 includes a first tube portion 110A, a second tube portion 110B, and a third tube portion 110C.
- 110A of 1st pipe parts have the inflow port 110a of plasma production gas
- 2nd pipe part 110B has the inflow port 110b of activated species production gas
- 3rd pipe part 110C has the activated species irradiation port 110c.
- the chamber 110 is configured such that the first tube portion 110A, the second tube portion 110B, and the third tube portion 110C are connected at one place (joint portion) to form a T-shaped tube.
- the chamber 110 is a T-shaped glass tube.
- the outer diameter of the tube of the chamber 110 is 4 mm, and the inner diameter is 2 mm.
- the length of the first tube portion 110A is 10 cm
- the length of the second tube portion 110B is 10 cm
- the length of the third tube portion 110C is 20 cm.
- 110A of 1st pipe parts are the upstream parts of the flow of plasma production gas
- 110C of 3rd pipe parts is the downstream part of the flow of plasma production gas
- the second pipe portion 110B is an upstream portion of the flow of the activated species product gas
- the third tube portion 110C is a downstream portion of the flow of the activated species product gas.
- a gas cylinder containing the plasma generation gas is connected to the plasma generation gas inlet 110a of the first pipe portion 110A via a gas tube, and the plasma generation gas sequentially flows from the gas cylinder into the first pipe portion 110A.
- a gas cylinder containing the activated species production gas is connected to the inlet 110b of the activated species production gas of the second pipe portion 110B through a gas tube, and the activated species production gas sequentially flows from the gas cylinder into the second tube portion 110B.
- the mixing ratio of the active species generating gas can be adjusted by controlling the relative ratio between the inflow amount of the plasma generating gas into the chamber 110 and the inflow amount of the active species generating gas into the chamber 110.
- the upstream electrode 120 is located in a part of the chamber 110 (first pipe portion 110A).
- the upstream electrode 120 is coaxially provided on the outer periphery of the first tube portion 110A.
- the downstream electrode 130 is located in a part of the chamber 110 (the third tube portion 110C).
- the downstream electrode 130 is coaxially provided on the outer periphery of the third tube portion 110C.
- the downstream electrode 130 is located in the downstream part of the flow of the plasma generation gas from the upstream electrode 120.
- the plasma power source 140 applies a voltage to the upstream electrode 120 and the downstream electrode 130.
- the plasma power source 140 can apply a pulse train-like positive voltage having a predetermined frequency to the upstream electrode 120 and the downstream electrode 130.
- the voltage value of the positive voltage in the form of a pulse train applied by the plasma power source 140 is set to 7 kV for the upstream electrode 120, for example, and the frequency is set to about 10 kHz, for example.
- the downstream electrode 130 is grounded.
- size of the voltage of the upstream electrode 120 and the downstream electrode 130 is not limited.
- the applied voltage to the upstream electrode 120 may be lower than the applied voltage to the downstream electrode 130.
- plasma can be generated stably.
- the plasma generation gas flows in from the plasma generation gas inlet 110a, and the plasma power source 140 applies a voltage to the upstream electrode 120 and the downstream electrode 130, whereby plasma is generated from the plasma generation gas.
- the chamber includes a region where the plasma is generated (plasma generation region B).
- the chamber is configured such that the active species product gas flows between the upstream electrode 120 and the downstream electrode 130. More specifically, the chamber 110 is configured such that the active species generated gas flows into the plasma generation region B.
- FIG. 2 is a flowchart showing the active species irradiation method using the active species irradiation apparatus 100 according to the present embodiment.
- the active species irradiation method of the present invention can be realized by using the active species irradiation apparatus 100 and executing Step 1 to Step 4.
- Step 1 application process: A voltage is applied to the upstream electrode 120 and the downstream electrode 130.
- the voltage value of the pulse train-like positive voltage applied by the plasma power source 140 is set to 7 kV with respect to the upstream electrode 120, for example, and the frequency is set to, for example, about 10 kHz. .
- the downstream electrode 130 is grounded.
- Step 2 Plasma generation gas is introduced from the plasma generation gas inlet 110a of the chamber 110 to generate plasma.
- the plasma generation region B is formed by executing the plasma generation process.
- Step 3 active species generation step: An active species generation gas is introduced between the upstream electrode 120 and the downstream electrode 130 to generate active species.
- Step 4 active species irradiation process: The active species are irradiated from the active species irradiation port 110c.
- the active species irradiation port 110c is directed toward the object A, and the active species is irradiated onto the object A.
- an active species irradiated object can be produced from the object.
- the execution order of the above steps is performed. It doesn't matter.
- the plasma generation process may include an application process.
- FIG. 3 is a graph showing the amount of active species generated using the active species irradiation apparatus 100 and the amount of active species generated using the conventional apparatus.
- the amount of active species generated was measured by an electron spin resonance (ESR) measuring device.
- ESR electron spin resonance
- the horizontal axis indicates the magnetic field (mT).
- Graph A shows the amount of active species generated by using a conventional apparatus.
- the conventional apparatus is configured such that the activated species product gas flows upstream of the upstream electrode.
- Graph B shows the amount of active species generated by using the active species irradiation apparatus 100
- Graph C shows the amount of active species generated by using another active species irradiation apparatus.
- the configuration of the other active species irradiation apparatus is the same as that of the active species irradiation apparatus 100, but the distance from the plasma generation region B to the active species irradiation port 110c in the other active species irradiation apparatus 100 is the same as that of the active species irradiation apparatus 100. It is longer than the distance from the plasma generation region B to the active species irradiation port 110c.
- the active species irradiation apparatus 100 when the active species irradiation apparatus 100 is used, at least a hydroxy radical (OH radical) and a superoxide anion radical (O2 anion radical) are generated. ing.
- the production amount of the hydroxy radical and the superoxide anion radical is larger than the production amount of these active species produced by using the conventional apparatus.
- the shorter the distance from the plasma generation region B to the active species irradiation port 110c the higher the efficiency of introducing the active species into the irradiated object.
- the active species irradiation treatment can be performed on the object A, and the active species coverage can be applied from the object A (for example, water). Irradiated matter (for example, active species-containing water containing a larger amount of active species than water) can be produced.
- object A for example, water
- Irradiated matter for example, active species-containing water containing a larger amount of active species than water
- FIG. 4 is a graph showing the progress of sterilization using the active species irradiation apparatus 100.
- Escherichia coli suspension (10 7 CFU / ml) is adopted as the object A, 450 sccm of helium gas is used as the plasma generating gas, and 50 sccm of oxygen gas is used as the active species generating gas.
- the number of bacteria was evaluated.
- the D value (necessary for reducing the number of bacteria to 1/10) when the pH of the bacterial suspension is 3.7. Time) was 5.6 sec.
- the pH of the bacterial suspension was 4.2, the D value was 9.6 sec.
- the pH of the bacterial suspension was 4.8, the D value was 15.7 sec.
- the pH of the bacterial suspension was 6.5, the D value was 44.8 sec. High bactericidal power was obtained by lowering the pH of the bacterial suspension.
- the active species irradiation apparatus 100 of the present invention has been described above with reference to FIGS.
- a large amount of sterilizing active species could be generated by generating a mixed phase flow of plasma generating gas and active species generating gas in the middle of the plasma generating portion. Although it was not in contact with the liquid surface, the same level of bactericidal power as that obtained when the LF plasma jet was brought into contact with the liquid surface could be obtained. Further, by connecting a pipe from the plasma generation region B (plasma source) to the active species irradiation port (irradiation part), a high sterilizing power can be obtained even if it is about 4 m, which is advantageous in terms of device creation.
- a method in which activated species generation gas flows between the upstream electrode and the downstream electrode can be executed, but the chamber is formed between the upstream electrode and the activated species irradiation port.
- the structure of the chamber is not limited to the T shape as long as the active species product gas is configured to flow in between.
- the structure of the chamber can be coaxial.
- FIG. 5 is a schematic diagram of an active species irradiation apparatus 200 according to the embodiment of the present invention.
- the structure of the chamber provided in the active species irradiation apparatus 200 is coaxial.
- the active species can be irradiated to the object A from the active species irradiation apparatus 200 to produce an active species irradiated object.
- the active species irradiation apparatus 200 includes a chamber 210, an upstream electrode 120, a downstream electrode 130, and a plasma power source 140. Since the upstream electrode 120, the downstream electrode 130, and the plasma power supply 140 have the same functions as the constituent elements of the active species irradiation apparatus 100, detailed description thereof is omitted.
- the plasma generation gas and the active species generation gas flow into the chamber 210.
- the plasma generation gas is helium gas
- the active species generation gas is oxygen gas.
- the chamber 210 includes a plasma generation gas inlet 210a, an activated species generation gas inlet 210b, and an activated species irradiation port 210c. Active species are irradiated from the active species irradiation port 210c.
- the active species is a superoxide anion radical.
- the active species is irradiated to the object A from the active species irradiation port 210c, and the active species irradiated object is produced.
- the object A is water
- the active species irradiated object is active species-containing water containing a larger amount of active species than water.
- the chamber 210 includes a fourth pipe part 210D and a fifth pipe part 210E.
- the fourth pipe section 210D has a plasma generation gas inlet 210a and an activated species irradiation port 210c
- the fifth pipe section 210E has an activated species generation gas inlet 210b and an activated species generation gas outlet 210d.
- the chamber 210 is configured such that the fourth pipe portion 210D includes the portion 210d of the active species product gas outlet of the fifth pipe portion 210E.
- the chamber 210 is a coaxial glass tube.
- the outer diameter of the tube of the fourth tube portion 210D is 8 mm, and the inner diameter is 6 mm.
- the outer diameter of the tube of the fifth tube portion 210E is 4 mm, and the inner diameter is 2 mm.
- the length of the fourth tube portion 210D is 20 cm
- the length of the fifth tube portion 210E is 15 cm.
- the chamber 210 is configured such that the active species product gas flows between the upstream electrode 120 and the downstream electrode 130.
- the chamber 210 is configured such that the active species product gas flows between the upstream electrode 120 and the downstream electrode 130.
- the plasma generation gas inlet 210a of the fourth tube portion 210D is an upstream portion of the flow of the plasma generation gas, and the active species irradiation port 210c of the fourth tube portion 210D is a downstream portion of the flow of the plasma generation gas.
- the activated species generating gas inlet 210b of the fifth pipe portion 210E is an upstream portion of the activated species generated gas flow, and the activated species generated gas outlet 210d of the fifth tube portion 210E is downstream of the activated species generated gas flow. Part.
- the gas cylinder containing the plasma generation gas is connected to the plasma generation gas inlet 210a of the fourth pipe section 210D, and the plasma generation gas sequentially flows from the gas cylinder into the fourth pipe section 210D.
- a gas cylinder containing the activated species production gas is connected to the inlet 210b of the activated species production gas in the fifth pipe section 210E, and the activated species production gas sequentially flows from the gas cylinder into the fifth pipe section 210E.
- the mixing ratio of the active species generating gas can be adjusted by controlling the relative ratio between the inflow amount of the plasma generating gas into the chamber 210 and the inflow amount of the active species generating gas into the chamber 210.
- the upstream electrode 120 is provided in the upstream portion of the flow of the plasma generation gas in the fourth tube portion 210D, and the downstream electrode 130 is the downstream portion of the flow of the plasma generation gas in the fourth tube portion 210D (the upstream electrode 120). More downstream part).
- the activated species generation gas outlet 210d of the fifth pipe portion 210E is located between the upstream electrode 120 and the downstream electrode 130. With this configuration, the activated species irradiating apparatus 200 can execute a method (an intermediate mixing method) in which activated species generated gas flows between the upstream electrode 120 and the downstream electrode 130.
- the active species irradiation apparatus 100 and the active species irradiation apparatus 200 according to the embodiment of the present invention have been described above with reference to FIGS.
- the active species irradiation device 100 and the active species irradiation device 200 are “mixed”, but as long as the chamber is configured so that the active species generation gas flows between the upstream electrode and the active species irradiation port. , It is not limited to the “medium mixing method”.
- the chamber may be of a type (post-mixing type) in which the active species product gas flows between the downstream electrode and the active species irradiation port.
- FIG. 6 is a schematic diagram of the active species irradiation apparatus 300 according to the present embodiment.
- the active species irradiation apparatus 300 can irradiate the target A with active species to produce an active species irradiated object.
- the active species irradiation apparatus 300 includes a chamber 310, an upstream electrode 120, a downstream electrode 130, and a plasma power source 140. Since the upstream electrode 120, the downstream electrode 130, and the plasma power supply 140 have the same functions as the constituent elements of the active species irradiation apparatus 100, detailed description thereof is omitted.
- the plasma generation gas and the active species generation gas flow into the chamber 310.
- the plasma generation gas is helium gas
- the active species generation gas is oxygen gas.
- the chamber 310 includes a plasma generation gas inlet 110a, an activated species generation gas inlet 110b, and an activated species irradiation port 110c.
- the active species are irradiated from the active species irradiation port 110c.
- the active species is a superoxide anion radical.
- the active species is irradiated onto the object A from the active species irradiation port 110 c, thereby producing an active species irradiated object.
- the object A is water
- the active species irradiated object is active species-containing water containing a larger amount of active species than water.
- the chamber 310 includes a first tube portion 110A, a second tube portion 110B, and a third tube portion 110C.
- 110A of 1st pipe parts have the inflow port 110a of plasma production gas
- 2nd pipe part 110B has the inflow port 110b of activated species production gas
- 3rd pipe part 110C has the activated species irradiation port 110c.
- the chamber 110 is configured such that the first tube portion 110A, the second tube portion 110B, and the third tube portion 110C are connected at one place to form a T-shaped tube.
- the chamber 110 is a T-shaped glass tube.
- the outer diameter of the tube of the chamber 110 is 4 mm, and the inner diameter is 2 mm.
- the length of the first tube portion 110A is 20 cm
- the length of the second tube portion 110B is 10 cm
- the length of the third tube portion 110C is 10 cm.
- 110A of 1st pipe parts are the upstream parts of the flow of plasma production gas
- 110C of 3rd pipe parts is the downstream part of the flow of plasma production gas
- the second pipe portion 110B is an upstream portion of the flow of the activated species product gas
- the third tube portion 110C is a downstream portion of the flow of the activated species product gas.
- a gas cylinder containing the plasma generation gas is connected to the plasma generation gas inlet 110a of the first pipe portion 110A via a gas tube, and the plasma generation gas sequentially flows from the gas cylinder into the first pipe portion 110A.
- a gas cylinder containing the activated species production gas is connected to the inlet 110b of the activated species production gas of the second pipe portion 110B through a gas tube, and the activated species production gas sequentially flows from the gas cylinder into the second tube portion 110B.
- the mixing ratio of the active species generating gas can be adjusted by controlling the relative ratio between the inflow amount of the plasma generating gas into the chamber 310 and the inflow amount of the active species generating gas into the chamber 310.
- the upstream electrode 120 is located in a part of the chamber 110 (first pipe portion 110A).
- the upstream electrode 120 is coaxially provided on the outer periphery of the first tube portion 110A.
- the downstream electrode 130 is located in a part of the chamber 110 (first pipe portion 110A).
- the downstream electrode 130 is coaxially provided on the outer periphery of the first tube portion 110A.
- the downstream electrode 130 is located in the downstream part of the flow of the plasma generation gas from the upstream electrode 120.
- the first tube portion 110A, the second tube portion 110B, and the third tube portion 110C are connected to each other at a portion further downstream than the downstream electrode 130.
- the plasma power source 140 applies a voltage to the upstream electrode 120 and the downstream electrode 130.
- the plasma power source 140 can apply a pulse train-like positive voltage having a predetermined frequency to the upstream electrode 120 and the downstream electrode 130.
- the voltage value of the positive voltage in the form of a pulse train applied by the plasma power source 140 is set to 7 kV for the upstream electrode 120, for example, and the frequency is set to about 10 kHz, for example.
- the downstream electrode 130 is grounded.
- size of the voltage of the upstream electrode 120 and the downstream electrode 130 is not limited.
- the applied voltage to the upstream electrode 120 may be lower than the applied voltage to the downstream electrode 130.
- plasma can be generated stably.
- the plasma generation gas flows in from the plasma generation gas inlet 110a, and the plasma power source 140 applies a voltage to the upstream electrode 120 and the downstream electrode 130, whereby plasma is generated from the plasma generation gas.
- the chamber 310 defines a region (plasma generation region B) where plasma is generated.
- the chamber 310 is configured such that the activated species generating gas flows between the downstream electrode 130 and the activated species irradiation port 110c of the third tube portion 110C. More specifically, the chamber 310 is configured such that the active species generation gas flows between the plasma generation region B and the active species irradiation port 110c of the third tube portion 110C.
- FIG. 7 is a graph showing the amount of active species generated using the active species irradiation apparatus 300 and the amount of active species generated using the conventional apparatus. The amount of active species produced was measured with an ESR measuring device. In FIG. 7, the horizontal axis indicates the magnetic field (mT).
- Graph D shows the amount of active species generated using a conventional apparatus.
- the conventional apparatus is configured such that the activated species product gas flows upstream of the upstream electrode.
- Graph E shows the amount of active species generated using the active species irradiation apparatus 300.
- the active species irradiation apparatus 300 When the active species irradiation apparatus 300 is used, at least a hydroxy radical (OH radical) and a superoxide anion radical (O2 anion radical) are generated.
- the amount of superoxide anion radicals produced is greater than the amount of active species produced using conventional devices.
- the amount of superoxide anion radicals generated is far greater than the amount of hydroxy radicals generated compared to the case where the active species irradiation apparatus 100 is used.
- the active species irradiation apparatus 300 of the present invention has been described above with reference to FIGS. According to the active species irradiation apparatus 300, a method (post-mixing method) in which the active species generation gas flows between the downstream electrode and the active species irradiation port can be executed.
- the structure of the chamber is not limited to the T shape as long as the active species product gas is configured to flow between the active species irradiation port and the active species irradiation port.
- the structure of the chamber can be coaxial.
- FIG. 8 is a schematic diagram of an active species irradiation apparatus 400 according to an embodiment of the present invention.
- the structure of the chamber provided in the active species irradiation apparatus 400 is coaxial.
- the active species can be irradiated to the object A from the active species irradiation apparatus 400 to produce an active species irradiated object.
- the active species irradiation apparatus 400 includes a chamber 410, an upstream electrode 120, a downstream electrode 130, and a plasma power source 140. Since the upstream electrode 120, the downstream electrode 130, and the plasma power source 140 have the same functions as the constituent elements of the active species irradiation apparatus 200, detailed description thereof is omitted. Furthermore, since the chamber 410 has the same function as the chamber 210 of the active species irradiation apparatus 200, detailed description other than the configuration is omitted.
- the chamber 410 is configured such that activated species generated gas flows between the downstream electrode 130 and the activated species irradiation port 110c.
- the upstream electrode 120 is provided in the upstream portion of the flow of the plasma generation gas in the fourth tube portion 210D, and the downstream electrode 130 is the downstream portion of the flow of the plasma generation gas in the fourth tube portion 210D (the upstream electrode 120). More downstream part).
- the activated species generation gas outlet 210d of the fifth pipe portion 210E is located between the downstream electrode 130 and the activated species irradiation port 110c.
- the activated species irradiating apparatus 200 can execute a method (post-mixing method) in which the activated species generation gas flows between the downstream electrode 130 and the activated species irradiation port 110c.
- the active species is irradiated to the object A from the active species irradiation port 110c, and the active species irradiated object is produced.
- the active species irradiation apparatus, the active species irradiation, and the active species irradiation material manufacturing method according to the embodiment of the present invention have been described with reference to FIGS. 1 to 8. It is not intended to be limited to the described configuration, and includes a configuration equivalent to the configuration.
- the plasma generating gas is not limited to helium gas as long as it is a source gas that generates plasma. It can be argon gas, xenon gas or neon gas.
- the active species is not limited to the superoxide anion radical.
- the active species can be an active oxygen species or an active nitrogen species.
- the configuration of the activated species irradiation apparatus is not limited to a T shape or a coaxial shape as long as the activated species generation gas can be configured to flow between the upstream electrode and the activated species irradiation port.
- the chamber provided in the active species irradiation apparatus may be a Y-shaped three-way tube in addition to the T-shaped three-way tube (T-shaped tube).
- the chamber may be a multi-way tube composed of four or more tube parts.
- the size of the chamber is also arbitrary.
- the polarity of voltage application to the upstream electrode 120 and the downstream electrode 130 is not limited. For example, a higher voltage can be applied to the upstream electrode 120 than to the downstream electrode 130. Further, a lower voltage can be applied to the upstream electrode 120 than to the downstream electrode 130.
- the shapes of the upstream electrode 120 and the downstream electrode 130 are not limited to be coaxial with the tube portion as long as they can be located in a part of the chamber.
- the shapes of the upstream electrode 120 and the downstream electrode 130 may be polygonal shapes.
- the active species generating gas is not limited to oxygen gas as long as it is a raw material gas for generating active species. It can be air. Further, the gas may be a mixture of 20% oxygen and 80% nitrogen. Furthermore, in the active species product gas, the mixing ratio of oxygen can be adjusted to 1% to 20%. Further, the active species generating gas may be a gas obtained by diluting oxygen gas with helium gas.
- FIG. 9 is a graph showing the relationship between the oxygen supply amount to the active species irradiation apparatus 100 and the sterilizing power.
- a bacterial suspension of E. coli (10 7 CFU / ml, pH is 3.7) was used as the object A, helium gas was used as the plasma generation gas, and oxygen gas was used as the active species generation gas.
- the flow rate was adjusted so that the total flow rate of the plasma generation gas and the active species generation gas was 500 sccm, and the oxygen mixing ratio was changed from 0.04% to 20% to evaluate the viable count of E. coli.
- the oxygen mixing ratio was 0.04%
- the D value was 53.5 sec.
- the oxygen mixing ratio was 0.2%
- the D value was 51.0 sec.
- the oxygen mixing ratio was 2%
- the D value was 24.2 sec.
- the oxygen mixing ratio was 5%
- the D value was 8.5 sec.
- the oxygen mixing ratio was 10%
- the D value was 8.3 sec. High sterilizing power was obtained by increasing the oxygen mixing ratio.
- FIG. 10 is a graph showing a comparison between a conventional method (premixing method) and a method based on the present invention (an intermediate mixing method using the active species irradiation apparatus 100 and a postmixing method using the active species irradiation apparatus 300).
- a bacterial suspension of E. coli (10 7 CFU / ml, pH 3.5) was employed. The flow rate is adjusted so that the total flow rate of the plasma generating gas and the active species generating gas is 2000 sccm, using 1950 sccm helium gas as the plasma generating gas, and using 50 sccm oxygen gas as the active species generating gas, The viable count of E. coli was evaluated.
- the D value was 144 sec.
- the D value was 67 sec.
- the D value was 24 sec.
- the D value of the intermediate mixing method is about 45% of the D value of the premixing method, and the sterilizing power is increased. Further, even when the mixing ratio of the active species generating gas was the same, the D value of the post-mixing method was about 15% of the D value of the pre-mixing method, and the sterilizing power was further increased.
- active oxygen necessary for sterilization can be efficiently generated using a non-contact plasma source with respect to an object by introducing an active species generating gas between the upstream electrode and the active species irradiation port.
- a mixed phase flow of the plasma generation gas and the active species generation gas is present, and there is a region where the purity of the plasma generation gas is high. In this region, short-circuit discharge occurs, so that high density plasma is efficiently generated.
- High sterilization power can be obtained by contacting high density plasma with oxygen gas having a high partial pressure.
- the method of the present invention (medium mixing method or post-mixing method), it is easy to increase the mixing ratio of the active species generating gas. That is, in the conventional method “premixing method” in which oxygen is mixed in advance with the plasma generating gas for discharge prior to plasma generation, the helium purity is lowered at the portion where the electric field is applied, and therefore, it is difficult for the discharge to occur. Therefore, in the conventional method (premix method), discharge can be performed only up to an oxygen mixture ratio of about several percent.
- an active species generating gas having a high discharge voltage is mixed with a plasma generating gas having a low discharge voltage (easily discharged) by generating a mixed phase flow. Therefore, the discharge is relatively easy to occur. Therefore, as described with reference to FIG. 9, in the method of the present invention, it is possible to increase the oxygen mixing ratio to 20% or more, compared with the case of an oxygen mixing ratio of about several percent, Furthermore, high sterilization power can be obtained. Thus, in the present invention, stable discharge can be performed at a high oxygen mixing ratio, and an overwhelmingly high sterilizing power can be obtained as compared with the conventional method.
- the active species generating gas is controlled by controlling the relative ratio between the inflow amount of the plasma generating gas into the chamber and the inflow amount of the active species generating gas into the chamber.
- the mixing ratio can be adjusted. Therefore, when the desired sterilizing power cannot be obtained, the mixing ratio of the active species generating gas can be adjusted during use to increase the sterilizing power.
- the active species product gas mixed portion (if the chamber is a three-way tube, the first tube portion 110A, the second tube portion 110B, and the third tube portion 110C). (If the chamber is coaxial, near the outlet 210d of the active species product gas, discharge is relatively less likely to occur in the downstream portion than in the upstream portion.) As a result, the overall electric discharge is more likely to occur.
- the generation efficiency of active oxygen is good. Even in the “post-mixing method” in which the active species generation gas is mixed after discharging only with the plasma generation gas, there is a sufficient area where the purity of the plasma generation gas is maintained. Therefore, even in the gas after discharge, the metastable atoms of helium in a high energy state are difficult to disappear and the metastable atoms come into contact with the active species generating gas, so that the generation efficiency of active oxygen is good.
- the plasma itself containing high energy electrons does not directly contact the active species generation gas, so that generation of ozone can be suppressed.
- the required active species for example, superoxide anion radical
- the required active species can be selectively generated.
- a root canal can be employ
- the activated species irradiation apparatus according to the present embodiment may further include a needle member that can be connected to the activated species irradiation port. Active species are irradiated from the tip of the needle member. By inserting the tip of the needle member into the root canal, the active species can be efficiently irradiated into the root canal, and the active species-treated root canal can be produced as the active species irradiated object.
- a plurality of pipes can be connected to the tip of the needle member.
- gas is released from the root canal to the outside of the root canal. It becomes possible to prevent an increase in pressure in the canal and prevent emphysema from occurring due to an increase in gas pressure in the root canal.
- teeth, living bodies, and medical devices are adopted as objects, and as active species irradiated objects, active species-treated teeth, active species-treated living bodies, and active species-treated Can make medical equipment. Sterilization treatment and sterilization treatment are performed on teeth, living bodies, and medical devices by the sterilization action by the active species, and the active species irradiation apparatus and the active species irradiation method of the present invention can be used for sterilization.
- the processing target is sterilized or sterilized.
- the method of applying the active species irradiation-treated liquid to the processing target is a method of indirectly irradiating the processing target with active species irradiation.
- the disinfection effect, sterilization effect, and sterilization effect equivalent to the method of directly irradiating active species can be expected.
- the active species (active oxygen and active nitrogen) are efficiently irradiated with a non-contact plasma source to the irradiated object. Therefore, it can be suitably used for sterilization of irradiated objects.
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Abstract
Description
図1は、本実施形態による活性種照射装置100の模式図を示す。活性種照射装置100によって対象物Aに活性種を照射し、活性種被照射物を作製することができる。活性種照射装置100は、チャンバ110と上流電極120と下流電極130とプラズマ電源140とを備える。
図2は、本実施形態による活性種照射装置100を用いた活性種照射方法を示すフローチャートである。本発明の活性種照射方法は活性種照射装置100を用い、ステップ1~ステップ4を実行することで実現され得る。
本発明の活性種照射装置100を用い、本発明の活性種照射方法を実行することで、対象物Aに活性種照射処理を施すことができ、対象物A(例えば、水)から活性種被照射物(例えば、水よりも多量の活性種を含む活性種含有水)を作製することができる。以下、活性種被照射物(活性種処理済対象物)の詳細を説明する。
図5は、本発明の実施形態に係る活性種照射装置200の模式図を示す。活性種照射装置200が備えたチャンバの構造は同軸状である。活性種照射装置200から対象物Aに活性種を照射し、活性種被照射物を作製することができる。
図6は、本実施形態による活性種照射装置300の模式図を示す。活性種照射装置300によって対象物Aに活性種を照射し、活性種被照射物を作製することができる。活性種照射装置300は、チャンバ310と上流電極120と下流電極130とプラズマ電源140とを備える。上流電極120と下流電極130とプラズマ電源140とは、活性種照射装置100が有する構成要素と同様の機能であるので、詳細な説明は省略する。
図8は、本発明の実施形態に係る活性種照射装置400の模式図を示す。活性種照射装置400が備えたチャンバの構造は同軸状である。活性種照射装置400から対象物Aに活性種を照射し、活性種被照射物を作製することができる。
B プラズマ生成領域
100 活性種照射装置
110 チャンバ
110a プラズマ生成ガスの流入口
110b 活性種生成ガスの流入口
110c 活性種照射口
110A 第1管部
110B 第2管部
110C 第3管部
120 上流電極
130 下流電極
140 プラズマ電源
200 活性種照射装置
210 チャンバ
210a プラズマ生成ガスの流入口
210b 活性種生成ガスの流入口
210c 活性種照射口
210D 第4管部
210E 第5管部
300 活性種照射装置
310 チャンバ
400 活性種照射装置
410 チャンバ
Claims (15)
- プラズマ生成ガスと活性種生成ガスとが流れ込むチャンバであって、活性種が照射される活性種照射口を有するチャンバと、
前記チャンバの一部分であって、前記プラズマ生成ガスの流れの上流部分に位置する上流電極と、
前記チャンバの一部分であって、前記上流電極よりも前記プラズマ生成ガスの流れの下流部分に位置する下流電極と
を備えた活性種照射装置であって、
前記チャンバは、前記上流電極と前記活性種照射口との間に前記活性種生成ガスが流入するように構成されている、活性種照射装置。 - 前記チャンバは、前記プラズマが生成するプラズマ生成領域を包有し、
前記プラズマ生成領域内と前記活性種照射口との間に前記活性種生成ガスが流入するように構成されている、請求項1に記載の活性種照射装置。 - 前記チャンバは、前記プラズマ生成ガスの流入口と、前記活性種生成ガスの流入口とを有するように構成されている、請求項1又は請求項2に記載の活性種照射装置。
- 前記チャンバは、
前記プラズマ生成ガスの流入口を有する第1管部と、
前記活性種生成ガスの流入口を有する第2管部と、
前記活性種照射口を有する第3管部と
を含み、前記第1管部と前記第2管部と前記第3管部とが一か所で繋がり多方管を形成するように構成されている、請求項1~請求項3のうちの一項に記載の活性種照射装置。 - 前記チャンバは、
前記プラズマ生成ガスの流入口と前記活性種照射口とを有する第4管部と、
前記活性種生成ガスの流入口と前記活性種生成ガスの流出口とを有する第5管部と
を含み、前記第5管部の有する前記活性種生成ガスの流出口部分を前記第4管部が内部に包有するように構成されている、請求項1~請求項3のうちの一項に記載の活性種照射装置。 - 前記チャンバは、前記上流電極と前記下流電極との間に前記活性種生成ガスが流入するように構成されている、請求項1~請求項5のうちの一項に記載の活性種照射装置。
- 前記チャンバは、前記下流電極と前記活性種照射口との間に前記活性種生成ガスが流入するように構成されている、請求項1~請求項5のうちの一項に記載の活性種照射装置。
- 前記活性種照射口に接続可能な針部材を更に備え、
前記針部材の先端から、前記活性種が照射される、請求項1~請求項7のうちの一項に記載の活性種照射装置。 - 前記活性種は、ヒドロキシラジカル、スーパーオキシドアニオンラジカル、ヒドロペルオキシルラジカル、一重項酸素、酸素原子およびパーオキシナイトライト(ONOO-/ONOOH)のうちの少なくとも一種である、請求項1~請求項8のうちの一項に記載の活性種照射装置。
- 前記上流電極に対しては、前記下流電極に対するよりも高電圧が印加される、請求項1~請求項9のうちの一項に記載の活性種照射装置。
- プラズマ生成ガスと活性種生成ガスとが流れ込むチャンバであって、活性種が照射される活性種照射口を有するチャンバと、
前記チャンバの一部分であって、前記プラズマ生成ガスの流れの上流部分に位置する上流電極と、
前記チャンバの一部分であって、前記上流電極よりも前記プラズマ生成ガスの流れの下流部分に位置する下流電極と
を備えた活性種照射装置を用いて活性種を照射する方法であって、
前記プラズマ生成ガスを流入し、プラズマを生成するプラズマ生成工程と、
前記上流電極と前記活性種照射口との間に前記活性種生成ガスを流入し、前記活性種を生成する活性種生成工程と、
前記活性種照射口から前記活性種を照射する活性種照射工程と
を包含する、活性種照射方法。 - 前記プラズマ生成工程の実行によってプラズマ生成領域が形成され、
前記活性種生成工程は、前記プラズマ生成領域内と前記活性種照射口との間に前記活性種生成ガスを流入することにより実行される、請求項11に記載の活性種照射方法。 - プラズマ生成ガスと活性種生成ガスとが流れ込むチャンバであって、活性種が照射される活性種照射口を有するチャンバと、
前記チャンバの一部分であって、前記プラズマ生成ガスの流れの上流部分に位置する上流電極と、
前記チャンバの一部分であって、前記上流電極よりも前記プラズマ生成ガスの流れの下流部分に位置する下流電極と
を備えた活性種照射装置を用いて活性種被照射物を作製する方法であって、
前記プラズマ生成ガスを流入し、プラズマを生成するプラズマ生成工程と、
前記上流電極と前記活性種照射口との間に前記活性種生成ガスを流入し、前記活性種を生成する活性種生成工程と、
前記活性種照射口から前記活性種を対象物に照射する活性種照射工程と
を包含する、活性種被照射物作製方法。 - 前記対象物は水であり、
前記活性種被照射物は、前記水よりも多量の活性種を含む活性種含有水である、請求項13に記載の活性種被照射物作製方法。 - 前記活性種照射装置は、前記活性種照射口に接続可能な針状部材を更に備え、
前記活性種照射工程は、前記針状部材の先端から前記活性種を前記対象物の内部に照射する工程を含み、
前記対象物は歯根管であり、
前記活性種被照射物は、活性種処理済歯根管である、請求項13に記載の活性種被照射物作製方法。
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JPWO2018230689A1 (ja) * | 2017-06-16 | 2019-11-07 | 積水化学工業株式会社 | 医療用治療器具、医療用治療器具の使用方法及び活性ガスの照射方法 |
JP2020172498A (ja) * | 2017-06-16 | 2020-10-22 | 積水化学工業株式会社 | 細胞賦活化剤、創傷治療薬、抗炎症薬、歯肉炎治療薬及び歯周病治療薬 |
TWI772443B (zh) * | 2017-06-16 | 2022-08-01 | 日商積水化學工業股份有限公司 | 醫療用治療器具、及創傷治療用或抗炎症用之細胞活化劑之生成方法 |
KR101916029B1 (ko) * | 2017-09-04 | 2018-11-07 | 한국표준과학연구원 | 플라즈마 활성종 발생 장치 |
KR20190037448A (ko) * | 2017-09-29 | 2019-04-08 | 한국기계연구원 | 플렉서블 활성종 발생기 및 이의 용도 |
KR102197548B1 (ko) * | 2017-09-29 | 2021-01-07 | 한국재료연구원 | 플렉서블 활성종 발생기 및 이의 용도 |
US11540380B2 (en) | 2017-09-29 | 2022-12-27 | Korea Institute Of Materials Science | Flexible active species generator and use thereof |
Also Published As
Publication number | Publication date |
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JPWO2013105659A1 (ja) | 2015-05-11 |
JP5818176B2 (ja) | 2015-11-18 |
US20150010430A1 (en) | 2015-01-08 |
EP2804448A4 (en) | 2015-08-12 |
EP2804448A1 (en) | 2014-11-19 |
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