WO2018007557A1 - Dispositif de désinfection et procédé de désinfection - Google Patents

Dispositif de désinfection et procédé de désinfection Download PDF

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Publication number
WO2018007557A1
WO2018007557A1 PCT/EP2017/067021 EP2017067021W WO2018007557A1 WO 2018007557 A1 WO2018007557 A1 WO 2018007557A1 EP 2017067021 W EP2017067021 W EP 2017067021W WO 2018007557 A1 WO2018007557 A1 WO 2018007557A1
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WO
WIPO (PCT)
Prior art keywords
radiation
ozone
interior
disinfection
emitting
Prior art date
Application number
PCT/EP2017/067021
Other languages
German (de)
English (en)
Inventor
Rainer Kling
Original Assignee
Lengmo Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lengmo Gmbh filed Critical Lengmo Gmbh
Priority to EP17735553.4A priority Critical patent/EP3481438A1/fr
Publication of WO2018007557A1 publication Critical patent/WO2018007557A1/fr

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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
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • 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
    • A61L2/0029—Radiation
    • A61L2/0047—Ultraviolet radiation
    • 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
    • A61L2/0082—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 chemical substances
    • A61L2/0094—Gaseous substances
    • 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
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/20—Gaseous substances, e.g. vapours
    • A61L2/202—Ozone
    • 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
    • A61L2202/21—Pharmaceuticals, e.g. medicaments, artificial body parts

Definitions

  • the present invention relates to a disinfecting device.
  • the present invention relates to a device with which a disinfection can be achieved by the action of at least one special disinfectant from the gas phase.
  • the present invention relates to a disinfecting apparatus by means of which active oxygen from the excimer irradiation of an oxygen-containing gas phase and from the decomposition of ozone in an oxygen-containing gas phase to be disinfected - in the broadest sense - acts.
  • the present invention also relates to a disinfection method which can be carried out by means of the disinfecting device according to the invention.
  • Ozone is a gaseous substance under normal conditions (room temperature, standard pressure of 1 bar ⁇ 1000 hPa). Ozone is produced industrially by electrolysis of sulfuric acid, by photolysis or by silent electric discharge of air.
  • Ozone has a high potential for killing viruses, bacteria and fungi. It was therefore already in the prior art subject of considerations, also in the medical field and / or in connection with objects that are used close to the body, to effect a disinfection by means of contact with separately generated ozone.
  • the obstacle to the use of ozone for continuous disinfection was and is the danger that the use of ozone-containing systems is associated with the risk of escape of the O3 gas into the environment, regularly in the working environment. It therefore always requires an additional effort to avoid an ozone exposure of humans, for example by inhaling ozone, even in low concentrations. This was and is undesirable because of the harmfulness of ozone.
  • the disinfecting effect of ultraviolet radiation is also known. Effective disinfection and disinfection processes can be carried out using UV radiation in the wavelength range from 200 nm to 280 nm (UV-C range).
  • ozone In gas systems containing or consisting of molecular oxygen, ozone can be controlled under controlled conditions. a. by irradiation of short-wave ultraviolet radiation. On the other hand, when ultraviolet radiation is emitted, ozone decomposes into oxygen. This follows - generally considered - the (reversible, left to right endothermic) chemical equation 1: hv
  • the disinfection of objects to be disinfected eg utensils such as combs or medical instruments
  • areas of skin such as hands and arms of nursing or kitchen personnel
  • surfaces eg. Work surfaces in the laboratory and in the medical practice and in the hospital, home or kitchen area
  • the active oxygen by / 'ns / fu photolysis of oxygen in the air by VUV radiation proved to be advantageous to produce and simultaneously selectively reduce with the use of UV-radiation, the ozone formed to active oxygen (Equation 3), whereby the Concentration of active oxygen despite its abreaction in the context of the disinfection process without additional / ' ns / fu photolysis over a longer time than in the prior art can be maintained at an elevated level.
  • the UV radiation alone has an additional disinfecting effect.
  • the invention therefore relates to a disinfecting device comprising
  • a housing comprising at least one wall which separates an interior of the disinfecting device from an external environment of the disinfecting device, with - At least one inlet / outlet for one or more gas (s), including oxygen, in the interior or from the interior;
  • the invention relates to a device disinfecting device as described in more detail below, comprising means for introducing and removing to be disinfected Good in the interior and from the interior.
  • a preferred embodiment of such a device disinfection device comprises at least one sealable opening in the wall or comprises a housing which can be opened and closed again by folding or pivoting or rolling parts of the housing.
  • the invention further relates to a skin disinfection device, preferably a skin disinfection device, in particular hand and forearm disinfection device as described in more detail below, having one or more openings for inserting or removing one or more body part (s). in particular the hands and forearms, from the outside environment into the disinfectant device interior and from the inside of the disinfection device into the outside environment of the disinfection device.
  • the invention relates to a skin disinfection device which additionally comprises nozzles, by means of which an active oxygen and ozone-containing gas phase from one or more side (s) on the goods to be disinfected or body parts to be disinfected, for example, hands and / or Forearms, can be directed.
  • the invention also relates to a disinfection method using active oxygen and ozone as a disinfecting agent in an oxygen and optionally further gas mixture (s) containing gas in a substantially closed to the outside environment of the disinfecting device through at least one wall interior of the disinfecting device.
  • the object to be disinfected is exposed to the action of active oxygen and / or ozone generated by irradiating an oxygen-containing atmosphere with vacuum ultraviolet radiation in situ by a first radiation source at a predetermined concentration for a predetermined time and less defined atmosphere, and the object to be disinfected is exposed to the action of active oxygen, which is generated in situ by targeted irradiation of the ozone-containing atmosphere by ultraviolet radiation by a second radiation source. certain concentration over a predetermined time and under a defined atmosphere.
  • Figure 1 is a schematic sectional view of a general embodiment of a disinfecting device according to the invention.
  • Figure 2 is a schematic sectional view of an embodiment of a device disinfecting device
  • Figure 3 is a schematic sectional view of an embodiment of a skin disinfecting device, in particular a hand and forearm disinfecting device.
  • Figures 4 and 5 are each a schematic sectional view similar to Figure 3 depending on a further embodiment of a skin or hand and forearm disinfection device.
  • a disinfection device 100 comprises a housing 10 surrounded by at least one wall 12.
  • the housing 10 comprises at least one wall 12 which separates the interior 22 of the disinfection device 100 from the outside environment 23 of the disinfection device 100.
  • the housing 10 of the disinfection device 100 according to the invention may have any suitable shape and may for example have a rectangular shape (cube, cuboid) or semicircular shape (hemisphere), conversely semicircular shape (inverted hemisphere shape (eg tub shape). ) or round shape (sphere).
  • a person skilled in the art can freely choose the shape of the disinfection device according to the invention from suitable forms known to him and is in no way limited in the choice, in particular not to the cuboid shape shown in FIG.
  • the housing 10 of a disinfection device 100 has at least one wall 12, for example a wall 12 (sphere), two walls 12 (hemisphere), four walls (tetrahedron), six walls (as shown in schematic cross-section in FIG. 1), without limiting the invention to these forms.
  • the housing 10 comprising at least one wall or wall 12 separates the interior 22 of the disinfection device 100 from the outside environment 23.
  • the terms "separating” and “separating” and “separating” as used in the present description and in FIG are used for the present invention to the effect that - except at the especially designated places - the gas space of the interior 22 of the disinfecting device 100 and the gas space of the external environment 23 of the disinfecting device 100 not in the sense of a readily possible gas exchange with each other in
  • In the interior 22 of the device 100 formed or the interior 22 of the device 100 filling gas, especially ozone-containing, active oxygen-containing or ozone gas in the interior 22 of the device 100 does not leave this interior 22 through the at least one Wall 12, except on or by facilities provided for this purpose, such as gas-going (s) gas outlets 16, which are explained below.
  • gas present in the external environment 23 of the disinfection device 100 penetrate into the interior space 22 of the device 100, in particular not through the at least one wall or wall 12, unless it is provided by means provided for this purpose, such as, for example, gas-going (n ) Gas inlets (s) 14, which are explained below.
  • an inlet 14th or outlet 16 on the wall 12 or provided by the wall 12 of the housing 10 of the disinfecting device is also possible.
  • the exact number of inlets 14 or outlets 16 may be selected by the skilled person according to the circumstances; the number of which is limited neither by the description of the preferred embodiments nor by the figures.
  • the number of inlets 14 and the (independent) number of outlets 16 depend on the size (e.g., internal volume) of disinfecting apparatus 100, the amount of passing gas (s), and possibly other parameters as well; however, as a rule - but without limiting the invention to this - an inlet 14 and an outlet 16 will be sufficient to allow the required quantities of gas to pass through.
  • a single passage 14/16 through the wall 12 or through a wall 12 is conceivable which can be used, for example alternately, both as inlet 14 and as outlet 16 of a gas or a mixture of several gases.
  • Which type of inventively present (s) at least one inlet 14 or outlet 16 of a gas or a plurality of gases is / are familiar to those skilled in this technical field and can be selected according to the circumstances.
  • Conceivable examples is / are, for example, a valve or a plurality of valves, which may be designed as a double-use inlet 14 and outlet 16 of a gas or a plurality of gases as a multi-way valve (s) / can.
  • One or more valves is / are also preferred because at the inlet or outlet of gas (s) into and out of the inventive disinfecting device 100 u. U.
  • Valves not only allow control, for example metering, of the amount of gas flowing through, but also provide a leak-free connection between the gas spaces inside (22) and outside (23) of the disinfection device 100.
  • the interior 22 of the disinfecting apparatus 100 may comprise a device 42 which is a rapid one homogeneous distribution of gas flowing into the interior 22 or of a gas mixture comprising several gases in the interior of the disinfection device 100 and / or the homogeneous distribution of oxygen and / or generated ozone in the interior 22 of the disinfection device 100 and / or at least partial transfer of one or more a plurality of supplied and / or generated gas (s) from one interior of the disinfection device 100 into another room of the disinfection device 100 and / or the maintenance of the same other reaction conditions (eg temperature, humidity).
  • a device 42 which is a rapid one homogeneous distribution of gas flowing into the interior 22 or of a gas mixture comprising several gases in the interior of the disinfection device 100 and / or the homogeneous distribution of oxygen and / or generated ozone in the interior 22 of the disinfection device 100 and / or at least partial transfer of one or more a plurality of supplied and / or generated gas (s) from one
  • Such distribution devices 42 are known in principle to those skilled in the art and can therefore be selected according to the circumstances according to type, operation and dimensioning by the skilled person.
  • one or more fan (s), blower 42 or one or more smooth (s) or provided with swirling facilities facilities (s) baffle (s) or even one or more blasting nozzle (n ) in the interior 22 of the disinfection device 100 serve.
  • One or more of said devices 42 may be provided at appropriate locations in the interior 22 of the disinfecting device 100.
  • the invention is not limited to such exemplary devices 42 for the homogeneous distribution of gases in the interior 22 of the device 100.
  • the active oxygen may also be directed and concentrated, for example, by jet nozzles or similar devices concentrating the gas stream to specific locations within the disinfecting device 100.
  • ozone, active oxygen and air have different specific weights; the uniform distribution of the gases in the interior 22 of the disinfection device 100 is to be taken into particular consideration in the arrangement of distribution devices 42.
  • the disinfecting device 100 To achieve a disinfection by means of the disinfecting device 100 according to the invention, it is necessary to introduce devices (G) to be disinfected in the broadest sense into the interior 22 of the disinfecting device 100, where they are to be disinfected with the disinfectant to be disinfected active oxygen and / or ozone and can be brought into contact with UV radiation / can.
  • the material (G) to be disinfected into the interior 22 of the disinfection device 100 the latter comprises at least one access / exit 18.
  • Suitable Accesses / Departures 18 knows a person skilled in this technical field and can select them without restriction according to the circumstances of the individual case according to suitable criteria.
  • Suitable accesses or outlets 18 are, for example, closable doors or covers 18 in the housing wall 12 or the housing wall 12 upstream locks.
  • the examples mentioned do not limit the invention.
  • the disinfection device 100 further comprises, as an essential device, at least one radiation source 24 arranged in the interior 11 of the housing 10.
  • This at least one radiation source 24 is capable of emitting VUV radiation of at least one wavelength which permits direct and rapid in situ formation of active radiation Oxygen from atmospheric oxygen in the gas phase by the above reaction in exactly predetermined quantities allowed.
  • the person skilled in the art knows in this technical field not only the required, active oxygen or ozone in good quantum efficiency at suitable wavelengths of the vacuum ultraviolet light generating radiation sources, but also knows radiation sources or lamps whose irradiation of VUV light, the generation of active oxygen or ozone in a device such as the disinfection device 100 according to the invention allowed in situ. Therefore, the person skilled in the art can select suitable radiation sources for the generation of active oxygen or ozone in accordance with the circumstances (for example the size and / or shape of the device).
  • At least one radiation source 24 is present to generate active oxygen and ozone .
  • even fractions of a second after the start of the irradiation of VUV light can begin a disinfection process.
  • the invention is not limited to these.
  • VUV radiation is irradiated to oxygen present in the gas space. This is stimulated to produce active oxygen and ozone.
  • the radiated energy allows the defined formation of active oxygen and ozone, for example in an oxygen-containing air mixture, particularly preferably room air mixture in the interior 22 of the disinfecting device 100, without the formation of nitrogen oxide from the (also contained in the air) nitrogen to effect.
  • the person skilled in the art can adapt the number of radiation sources capable of emitting VUV radiation to the circumstances of the individual case, for example the size and / or the design of the interior 22 of the disinfection device 100 and the number or dimensioning of the product to be disinfected.
  • Another selection criterion is that the distance between the at least one radiation source 24 (or the plurality of radiation sources 24) capable of emitting VUV radiation and the material to be irradiated / disinfected is at least 0.5 cm, preferably 2 cm to 10 cm , ideally 3 cm to 5 cm, in order to achieve good and rapid disinfection results in the case of a static operation of the disinfecting device 100 without jet nozzles.
  • the radiation source can be operated with sine high voltage.
  • the at least one radiation source 24 is for emission of VUV radiation for generating active oxygen and ozone, at least one thin excimer lamp 24, e.g. B. in the simplest case, a cylindrical or rectangular tube made of synthetic quartz glass, with a relatively large linear expansion to produce preferably planar radiation of VUV radiation.
  • an excimer lamp with a diameter of 3 mm to 30 mm and a length in the range of 50 mm to 5000 mm, even more preferably with a diameter in the range of 3 mm to 30 mm and a length in the range of 50 mm to 300 mm.
  • a "thin" excimer lamp of these dimensions can be disinfected to be disinfected Good in a disinfecting device efficiently and "area-wide” because active oxygen and ozone the device interior 22 filling already shortly after the start of the irradiation of VUV radiation is present and all to be disinfected surfaces of the material to be disinfected effectively achieved.
  • the at least one radiation source 24 arranged in the interior 22 of the housing 10 of the disinfection device 100 and capable of emitting VUV radiation of at least one wavelength which permits the formation of active oxygen or of ozone in the gas phase can be used for the inventive, disinfection method practicable using the disinfecting apparatus 100, which will be described in more detail below, ensures that active oxygen or ozone is as required Concentration in the interior 22 of the disinfecting device 100 is generated and this concentration is maintained over the duration of the disinfection process. Of course, the concentration of active oxygen or ozone in the entire interior 22 of the disinfection device 100 depends on the volume of the interior 22, among other factors.
  • the active oxygen can also be generated at a location within the disinfection device 100 and distributed with nozzles such as jet nozzles targeted in the interior.
  • the concentration of active oxygen is one second to a few seconds after the beginning of the possibly pulsed irradiation of VUV light of said wavelength for a time of (for example) 1 s to 1 min, depending on the lamp efficiency and the operating mode, at values in the range from 50 ppm to 5000 ppm.
  • the duration of the disinfection process may be in the range of a few seconds to 10 minutes, preferably in the range of 2 seconds to 2 minutes.
  • the disinfection device 100 additionally comprises at least one further radiation source 34 in the interior 22 of the housing 10 of the disinfection device 100.
  • This at least one further radiation source 34 is capable of emitting UV radiation of at least one wavelength, which is the short-term, induced by light decay of ozone Oxygen with simultaneous formation of further active oxygen (see the above equation 3) allowed.
  • concentration of active oxygen be adjusted to a level of active oxygen concentration required for constant disinfection conditions (see reaction equation 3 above), but also excess ozone can be converted to oxygen at the end of the disinfection process. Therefore, no ozone exits into the external environment 23 of the disinfecting apparatus 100 when the disinfecting operation is completed.
  • the invention is not limited to these.
  • mercury-free radiation sources can also be used whose emission wavelengths are within the desired range.
  • the at least one radiation source 34 for emitting UV radiation which serves for the decay of ozone to active oxygen
  • a single further radiation source 34 more particularly a UV-Hg low-pressure radiator, capable of emitting UV radiation for emission of ozone according to the above equation 3 34, is present.
  • the invention is not limited to this, but can have a plurality of such radiation sources 34, for example two or more further UV low-pressure radiators 34, which the person skilled in the art can adapt to the circumstances of the individual case, for example the size and / or the shape of the disinfection device 100.
  • one or more or all of the walls of the interior 22 of the disinfecting device 100 may be provided with one or more reflective elements.
  • one or more reflective elements may be attached to one or more walls of the disinfecting device 100.
  • one or more reflective elements for example comprising one or more reflective wall surface (s) or metalized, may be disposed in the emission direction opposite to the radiation source 24 or opposite the radiation sources 24 for the emission of VUV radiation (s) plastic surface (s).
  • this / these are capable of causing a directed radiation to be disinfected Good G in the interior 22 of the disinfecting device 100.
  • reflective elements are reflective elements containing wall elements (eg mirrored aluminum with passivating surface) or metallized plastic (PC or PP) surfaces.
  • the reflective elements may, in particular, be capable of producing a directed reflection of the radiation.
  • the success of disinfection processes depends not only on sufficient disinfectant concentration but also on other process parameters. As such, for example, the pressure, the temperature and the humidity of the atmosphere of the disinfection room to call. Of course, the success of the disinfection process is also strongly dependent on the type of germicide (s) to be killed.
  • the disinfection device 100 comprises as an essential component also a control consisting of one or more devices. This controls, independently or sensor-controlled, the operation of the UV radiation emitting radiation sources 24, 34 in order to achieve optimal sterilization results.
  • the controller may also control the operation of other components of the disinfecting device, such as the distribution devices 42, or may automatically start the operation of the disinfecting device 100 by means of a light barrier (IR).
  • IR light barrier
  • a controller can monitor the process (eg, to comply with certain process parameters, temperature, humidity) and, in an emergency, such as ozone leakage, cause a safety shutdown.
  • the controller may be centrally located or integrated as a microcontroller in the individual electronic control gear (ballasts) of a radiation source or a group of radiation sources or other components of the disinfection device 100.
  • a central controller may be located within the sanitizer 100 or outside.
  • the present invention as a disinfecting device relates to a device disinfecting device 200 with the essential and / or preferred features defined in greater detail in the foregoing description.
  • a device disinfection device 200 is shown in FIG. 2 and will be described in more detail below with reference to FIG.
  • the device disinfection device 200 according to the invention like the disinfection device 100 described above in general, comprises a housing 210 surrounded by at least one wall 212.
  • the housing 210 comprises at least one wall 212 which encloses the interior 222 of the device disinfection device 200 from the external environment 223 of the devices -Desin Stammionsvorraum 200 separates.
  • the housing 210 of the device disinfection device 200 according to the invention may have any convenient form, for example - without limitation - rectangular shape (cubes, cuboid) or semicircular shape (hemisphere), conversely semicircular shape (inverted hemisphere shape (eg - Shape)) or round shape (sphere).
  • a person skilled in the art can freely choose the shape of the device disinfection device 200 according to the invention from appropriate forms known to him and is in no way limited in the choice, in particular not to the cuboid shape shown in FIG.
  • the housing 210 of a device disinfection device 200 has at least one wall 212, for example a wall 212 (sphere), two walls 212 (hemisphere), four walls (tetrahedra), six walls (ashlar, as shown in schematic cross section of FIG ), without limiting the invention to these forms.
  • the housing 210 comprising at least one wall or wall 212 separates the interior 222 of the device disinfection device 200 from the outside environment 223.
  • gas-common (eg n) gas outlets 216 which are discussed below.
  • At least one inlet 214 and at least one outlet 216 each are provided on the wall 212 or through the wall 212 of the housing 210 of the device disinfection device 200.
  • each of an inlet 14 and an outlet 216 separated from each other.
  • the exact number of inlets 214 or outlets 216 may be selected by the skilled person according to the circumstances; the number of which is limited neither by the description of the preferred embodiments nor by the figures.
  • the number of inlets 214 and the (independent) number of outlets 216 depend on the size (e.g., internal volume) and / or shape of the equipment disinfecting apparatus 200, the amount of passing gas (s), and possibly also from other parameters; however, as a rule - but without limiting the invention thereto - an inlet 214 and an outlet 216 will suffice to allow the required quantities of gas to pass through. With appropriate technology, even a single passage 214/216 through the wall 212 or through a wall 212 is conceivable, which can be used, for example alternately, both as inlet 214 and as outlet 216 of a gas or a mixture of several gases.
  • What is the present invention (s) at least one inlet 214 and outlet 216 of a gas or a plurality of gases, is the expert in this technical field and can be selected according to the circumstances.
  • Conceivable examples are / are, for example, a valve or a plurality of valves, which may also be designed as a multi-way valve (s) for double use as inlet 214 and outlet 216 of a gas or a plurality of gases.
  • One or more valves is / are also preferred because at the inlet or outlet of gas (s) into and out of the inventive device disinfection device 200 u. U.
  • Valves not only allow control, for example metering, of the amount of gas flowing through, but also provide a leak-free connection between the gas spaces inside (222) and outside (223) of the disinfection device 200.
  • the interior 222 of the device disinfecting apparatus 200 may include means 242 (shown in FIG the closed, dashed line embodiment with 242 'include), a fast, homogeneous distribution of gas flowing into the interior 222 or gas mixture comprising multiple gases in the interior 222 of the disinfecting device 200 and / or the homogeneous distribution of in the interior 222 of the devices Disinfection device 200 active oxygen or generated ozone and / or at least partial transfer of one or more supplied and / or generated gas (s) from one interior of the disinfecting device 200 in another room of the disinfecting device 200 and / or the upright maintaining the same other reaction conditions (eg.
  • Temperature, moisture content, etc.) in the interior 222 of the Device disinfection device 200 can serve.
  • Such distribution devices 242, 242 ' are known in principle to the person skilled in the art and can therefore be chosen according to the circumstances according to type, operation and dimensioning by the skilled person.
  • one or more fans or blowers 242, 242 'or one or more smooth or swirl-enabling devices can be used, for example, or one or more Blasting nozzle (s) in the interior 222 of the device disinfection device 200 serve.
  • One or more of said devices 242, 242 ' may be provided at appropriate locations in the interior 222 of the device disinfection device 200.
  • the invention is not limited to such exemplary means 242, 242 'for homogeneous distribution of gases in the interior 222 of the device 200.
  • the active oxygen may also be directed and concentrated, for example, by jet nozzles or similar devices concentrating the gas stream to specific locations within the disinfecting device 100.
  • ozone, active oxygen and air have different specific weights; the uniform distribution of the gases in the interior 222 of the disinfection device 200 is to be taken into special account in the arrangement of distributing devices 242.
  • the device disinfection device 200 To achieve a disinfection by means of the device disinfection device 200 according to the invention, it is necessary to introduce devices (G) or - generally - to be disinfected Good (G) in the broadest sense in the interior 222 of the device disinfection device 200, where he / it with Active oxygen or ozone and UV radiation can / can be brought into contact with the disinfectant to be generated.
  • the product (G) to be disinfected into the interior 222 of the device disinfection device 200 the latter comprises at least one accessory. 218.
  • Appropriate access / exit 218 is well-known to a person skilled in the art and can select it without restriction according to the circumstances of the individual case on the basis of suitable criteria.
  • FIG. 2 shows a device disinfection device 200, the upper wall of which is designed as a cover 21 1, which is pivotable about an axis parallel to an upper edge of the housing 210 - shown in FIG. 2 in solid lines, half swung open and shown closed in dashed lines.
  • This cover 21 1 can with respect to the upper edges of the other walls 212 with seals 213, 213 'be sealable and with a security closure 213, 213' be closed.
  • the controller allows the operation of the device disinfection device 200 to start only if the safety closure 213, 213 'is properly closed.
  • the operation of the device disinfection device 200 is stopped immediately via the electronics of the device control, when the safety closure 213, 213 'unintentionally opens.
  • the device disinfection device 200 further comprises, as an essential device, at least one radiation source 224 arranged in the interior 21 1 of the housing 210.
  • the radiation source 224 is capable of generating VUV radiation. At least one wavelength to emit, which allows the direct and rapid in situ formation of active oxygen in a predetermined concentration from the oxygen of the air in the gas phase by the above reaction in exactly predetermined amounts.
  • the person skilled in the art knows in this technical field not only the required, ozone or active oxygen in good quantum efficiency at suitable wavelengths of vacuum ultraviolet light generating radiation sources, but also knows radiation sources or lamps whose irradiation of UV light, the generation of active oxygen or ozone in a device such as the device disinfection device 200 according to the invention allowed. Therefore, the person skilled in the art can select suitable radiation sources for the generation of active oxygen and ozone according to the circumstances (for example the size and / or the shape of the device).
  • At least one radiation source 224 is present to generate active oxygen and ozone
  • the invention is not limited to this.
  • Fractions of seconds (in the nanosecond range) after switching on an excimer Emitter is irradiated with VUV radiation on oxygen present in the gas space. This is stimulated to produce active oxygen and ozone.
  • the radiated energy allows the defined formation of active oxygen and ozone, for example in an oxygen-containing air mixture, particularly preferably room air mixture in the interior 222 of the disinfecting device 200, without the formation of nitrogen oxide from the (also contained in the air) nitrogen to effect.
  • a single radiation source 224 capable of emitting VUV radiation more preferably a xenon gas excimer radiator 224, is provided for generating ozone according to the above equation.
  • the invention is not limited thereto: a person skilled in the art can adapt their number to the circumstances of the individual case, for example the size of the disinfection device 200, without referring to the number "1" in the sense of "a radiation source 224 (eg an excimer emitter)" to be limited.
  • the person skilled in the art can adapt the number of radiation sources capable of emitting VUV radiation to the circumstances of the individual case, for example the size and / or the design of the interior 222 of the disinfection apparatus 200 and the number or dimensioning of the item to be disinfected.
  • Another selection criterion is that the distance to the emission VUV radiation capable of at least one radiation source 224 (or the plurality of radiation sources 224) to the irradiated / disinfected Good at least 0.5 cm, preferably 2 cm to 10 cm, ideally 3 cm to 5 cm, should be good and achieve rapid disinfection results in the case of a static operation of the disinfecting device 200 without jet nozzles.
  • the at least one radiation source 224 is for the emission of VUV radiation, which serves for the generation of active oxygen and ozone, at least one thin excimer lamp 224, z. B. in the simplest case, a cylindrical or rectangular tube made of synthetic quartz glass, with a relatively large linear expansion to produce preferably planar radiation of VUV radiation.
  • an excimer lamp with a diameter of 3 mm to 30 mm and a length in the range of 50 mm to 5000 mm, even more preferably with a diameter in the range of 3 mm to 30 mm and a length in the range of 50 mm to 300 mm.
  • a "thin" excimer lamp of these dimensions can be disinfected to be disinfected Good in a disinfecting device efficiently and "area-wide” because active oxygen and ozone the device interior 222 filling already shortly after the start of the irradiation of VUV radiation is present and all to be disinfected surfaces of the material to be disinfected effectively achieved.
  • the at least one in the interior 222 of the housing 210 of the device disinfection device 200 arranged radiation source 224 which is capable of emitting VUV radiation of at least one wavelength, which allows the formation of active oxygen or of ozone in the gas phase, can for the According to the invention, using the device disinfection device 200 feasible disinfection method, which will be described in detail below, be ensured that active oxygen or ozone in the required concentration in the interior 222 of the device disinfection device 200 is generated and this concentration over the duration of Disinfection process is maintained.
  • the concentration of active oxygen or ozone in the entire interior 222 of the device disinfection device 200 depends, among other factors, on the volume of the interior 222.
  • the active oxygen can also be generated at a location within the disinfection device 200 and distributed with nozzles such as jet nozzles targeted in the interior.
  • the concentration of active oxygen is one second to a few seconds after the start of irradiation of possibly pulsed VUV light of said wavelength for a time of (for example) 1 s to 1 min, depending on the lamp efficiency and the mode of operation, at values in Range from 50 ppm to 5000 ppm.
  • the duration of the disinfection process may be in the range of a few seconds to 10 minutes, preferably in the range of 2 seconds to 2 minutes.
  • the device disinfection device 200 additionally comprises at least one further radiation source 234 in the interior 222 of the housing 210 of the device disinfection device 200.
  • This at least one further radiation source 234 is capable of emitting UV radiation of at least one wavelength, which is the short-term induced by light Decay of ozone to oxygen with simultaneous formation of further active oxygen (see the above equation 3) allowed.
  • concentration of active oxygen be adjusted to a level of active oxygen concentration required for constant disinfection conditions (see reaction equation 3 above), but also excess ozone can be converted to oxygen at the end of the disinfection process. Therefore, no ozone exits to the outside environment 223 of the equipment disinfecting apparatus 200 when the disinfecting operation is completed.
  • the invention is not limited to these.
  • the at least one radiation source 234 for emitting UV radiation which serves for the decay of ozone to active oxygen
  • is preferably at least one KrCl excimer lamp emitting at ⁇ 222 nm
  • is the at least one radiation source 234 for the emission of UV radiation, which serves for the decay of ozone to active oxygen, at least one emitting at ⁇ 253 nm Xel excimer lamp
  • is the at least one radiation source 234 for emitting UV radiation, which serves for the decay of ozone to active oxygen, at least one at ⁇ 250 nm emitting xenon gas excimer radiator with one with a suitable Phosphor on the inside coated additional outer cylinder
  • is the at least one radiation source 234 for emitting UV radiation, which serves for the decay of ozone to active oxygen, at least one emitting in the range of ⁇ 240 to 260 nm UV-LED.
  • a single further radiation source 234, more particularly a UV-Hg low-pressure emitter, capable of emitting UV radiation for emission of ozone according to the above equation 3 234, is present.
  • the invention is not limited to this, but can have a plurality of such radiation sources 234, for example two or more further UV low-pressure radiators 234, which the person skilled in the art can adapt to the circumstances of the individual case, for example the size and / or the shape of the disinfection device 200.
  • one or more or all of the walls of the interior 222 of the disinfecting device 200 may be provided with one or more reflective elements.
  • one or more reflective elements may be attached to one or more walls of the disinfecting device 200.
  • one or more reflective elements for example comprising one or more reflective wall surface (s) or metallized radiation element (s) relative to the radiation source 224 or to the radiation sources 224 for the emission of VUV radiation, can be mounted (s) plastic surface (s). With further added benefit, this / these are capable of directing a directed radiation at the good G to be disinfected Interior 222 of the disinfection device 200 bring about.
  • reflective elements are reflective elements containing wall elements (eg mirrored aluminum with passivating surface) or metallized plastic (PC or PP) surfaces.
  • the reflective elements may, in particular, be capable of producing a directed reflection of the radiation.
  • the success of disinfection processes depends not only on sufficient disinfectant concentration but also on other process parameters. As such, for example, the pressure, the temperature and the humidity of the atmosphere of the disinfection room to call. Of course, the success of the disinfection process is also strongly dependent on the type of germicide (s) to be killed.
  • the disinfection device 200 comprises as an essential component also a control consisting of one or more devices. This controls, independently or sensor-controlled, the operation of the UV radiation emitting radiation sources 224, 234 to optimal To achieve sterilization results.
  • the controller may also control the operation of other components of the disinfection device, such as distribution devices 242.
  • a controller can monitor the process (eg, to comply with certain process parameters, temperature, humidity) and, in an emergency, such as ozone leakage, cause a safety shutdown.
  • the controller may be centrally located or integrated as a microcontroller in the individual electronic control gear (ballasts) of a radiation source or a group of radiation sources or other components of the disinfection device 200.
  • a central controller may be located within the sanitizer 200 or outside.
  • the device disinfection device 200 can be used, for example, in the technical field, such as for sterilizing mobile phones, keyboards, remote controls, foils for packaging, escalators, handrails, door handles, toilets, animal houses, but also in the field of disinfection of equipment in the medical field, for example in the treatment of already used medical devices or in the preparation of new devices for treatment (eg surgical devices such as endoscopes, catheters, drains, etc., devices for surgical or dental treatment of humans and animals such as scalpels, Spatulas, staples, drills, milling cutters, etc.), in the preparation or preparation of equipment for the treatment of humans and animals in the body (eg personal care) area (eg combs, brushes, toothbrushes, scissors, shaving heads, Plane for human body care, hair care, skin care, nail care, dental care; ege, hoof care, mane care of horses; grooming, claw care of cats, dogs; the plumage and claw care in birds, to name but a few exemplary applications,
  • the present invention comprises a skin disinfection device, preferably a body skin disinfection device 300, in particular a hand and / or forearm disinfection device 300, with the essential and / or preferred features defined above in the description.
  • Hand disinfection device 300 comprises in particular one or more openings 318, more preferably an opening 318, which introducing (before the beginning of a disinfecting process) and removing (after completion of the disinfecting process) one or more body parts (e) (K), in particular the insertion of the hands and optionally the forearms, of a user from the outside environment 323 of the hands Disinfection device 300 in the interior 322 of the hand disinfection device 300 and the removal of the hands and possibly forearms of a user from the interior 322 of the hand disinfection device 300 in the external environment 323 of the hand disinfection device 300 serve (s).
  • FIG. 3 An illustrative but non-limiting example of such a body disinfecting device 300 is shown in FIG. 3 as an exemplary embodiment of a hand and / or forearm disinfecting device 300.
  • This will be described in more detail below with reference to the hand disinfection device 300 shown by way of example in FIG. 3, without referring to this particular embodiment of a skin, body skin and / or hand and / or forearm disinfection device 300 ("hand disinfection device 300 3 and 4.
  • Figures 4 and 5 also show hand disinfection devices 300 according to the invention with further features of the hand disinfection device 300 according to the invention which provide preferred disinfection results which are particularly advantageous.
  • the hand disinfection device 300 comprises, like the disinfection device 100 described above in general, a housing 310 surrounded by at least one wall 312.
  • the housing 310 comprises at least one wall 312 which encloses the interior 322 of the hand disinfection device 300 from the outside environment 323 of the hands Disinfection device 300 separates.
  • the hand disinfection device 300 additionally has a dividing wall 345 dividing the inner space 322 into two chambers.
  • the course of the partition wall 345, as shown in Figure 5, is arbitrary and is not limited to the embodiment shown in Figure 5 of the profile of the partition wall 345 (in Figure 5 in section: from bottom left to top right).
  • the partition wall 345 separates the interior space into the (in this case, without limitation, lower) gas generating chamber and into the (in this case, without limitation, upper) reaction chamber or disinfection chamber.
  • the housing 310 of the hand disinfection device 300 according to the invention may have any suitable shape, for example - without limitation - rectangular shape (cube, cuboid) or semicircular shape (hemisphere), reversed semicircular shape (inverted hemisphere (eg )) or round shape (sphere).
  • a person skilled in the art can freely choose the shape of the hand disinfection device 300 according to the invention from appropriate forms known to him and is in no way limited in the choice, in particular not to the shape shown in FIG.
  • the housing 310 of a hand disinfection device 300 has at least one wall 312, for example a wall 312 (sphere), two walls 312 (hemisphere), four walls (tetrahedron), six walls (cuboid, as shown in schematic cross-section in FIG. Figure 4 and Figure 5) without limiting the invention to these forms.
  • the housing 310 enclosing at least one wall or wall 312 separates the interior 322 of the hand disinfection device 300 from the outside environment 323.
  • Gas formed in the interior 322 of the device 300 or filling the interior 322 of the device 300, in particular active oxygen comprehensive ozone-containing gas or ozone gas in the interior 322 of the hand disinfection device 300 does not leave this interior space 322 through the at least one wall 312 unless it is provided by means provided therefor, such as gas-common (e.g. n) gas outlets 316, discussed below.
  • gas-common (e.g. n) gas outlets 316 discussed below.
  • gas present in the external environment 323 of the hand disinfection device 300 penetrate into the interior 322 of the device 300, in particular not through the at least one wall or wall 312, unless by means provided therefor, such as gas Common Gas Inlets (s) 314, discussed below.
  • FIG. 5 An exception to this feature of the closure of the disinfection room of a disinfection device is shown in FIG. 5, without restricting the invention to the features shown in FIG.
  • the hand disinfection device 300 shown in FIG. 5 is open on the upper side from the perspective of the insertion of the hands / lower arms 400 into the inner space 322 and allows the free insertion of the hands / lower arms 400 into the active oxygen and ozone at least partially filled (upper and open at the top) disinfection room.
  • an inlet 314 and an outlet 316 are provided on the wall 312 and / or through the wall 312 of the housing 310 of the hand disinfection device 300.
  • each inlet 314 and outlet 316 it is also possible for each inlet 314 and outlet 316 to be separate from each other.
  • inlets 314 or outlets 316 may be selected by the skilled person according to the circumstances; the number of which is limited neither by the description of the preferred embodiments nor by the figures. Naturally, the number of inlets 314 and the (independent) number of outlets 316 depend on the size / volume of the hand sanitizer 300, the amount of passing gas (s), and possibly other parameters as well; As a rule, but without limiting the invention to this, an inlet 314 and an outlet 316 will suffice for the inventive hand disinfection device 300 in order to allow the required quantities of gas to pass through.
  • the number of inlets 314 and outlets 316 disposed between the two chambers is also not limited and can be selected by the expert according to the circumstances. Ideally, inlets and outlets in this case can also be used reciprocally for the supply, transfer or discharge of gases - oxygen, active oxygen, ozone, air and other gaseous components.
  • a device serves as an inlet for one or more gas (s) into the gas generating chamber and a further device as an opening for further processing. conduct one or more gas (s) generated by the lamp (s) from the gas generating chamber into the reaction chamber or disinfecting chamber of the hand disinfecting device 300.
  • Conceivable examples are / are, for example, one or more valves that may be configured as double-use inlet 314 and outlet 316 of a gas or a plurality of gases as a multi-way valve (s), for example.
  • One valve or more valves is / are also preferred because at the inlet or outlet of gas (s) into and out of the inventive hand-disinfecting device 300 u. U.
  • Valves not only allow control, such as metering, of the amount of gas flowing through, but also provide a leak-free connection between the gas spaces within (322) and outside (323) of the hand sanitizer 300.
  • the interior 322 of the hand sanitizer 300 may comprise at least one means 342, that of a rapid, homogeneous distribution of gas flowing into the interior 322 or a gas mixture comprising several gases in the interior of the hand disinfection device 300 and / or the homogeneous distribution of active oxygen or ozone generated in the interior 322 of the hand disinfection device 300 and / or (see for example FIG.
  • an at least partial transfer of one or more supplied and / or generated gas (s) from an interior of the disinfection device 300 into one another space of the disinfecting device 300 and / or maintaining the same other reaction conditions (eg., Temperature, moisture content, etc.) in the interior 322 of the hand disinfection device 300 may serve.
  • Such distributing devices 342 are known in principle to the person skilled in the art and can therefore be chosen according to the circumstances according to number, type, mode of operation and dimensioning by a person skilled in the art.
  • one or more fans, blowers 342 or one or more smooth or swirling-enabling devices may be provided, for example, or one or more jet nozzles Interior 322 of the hand disinfection device 300 or - see Figure 5 - serve between two partial spaces of the hand disinfection device 300.
  • One or more of said devices 342 may be provided at appropriate locations in the interior 322 of the hand sanitizer 300 or, as shown in FIG. 5, positioned between two compartments of the hand sanitizer 300.
  • the invention is not limited to such exemplary means 342 for homogeneous distribution of gases in the interior 322 of the device 300 or between two partial spaces of the device 300.
  • the hand disinfection device 300 To achieve a disinfection of body parts of a user, for example, the hands and possibly forearms of a user, by means of the hand disinfection device 300 according to the invention, it is necessary to a hand or the hands and possibly forearms of a user in the Interior space 322 of the hand disinfection device 300, where it is in contact with the disinfectant to be generated with active oxygen or with ozone. can / can be brought.
  • the hands and optionally forearms of a user into the interior 322 of the hand disinfection device 300 the latter comprises at least one insertion opening 318 of suitable size and construction, preferably an insertion opening 318 for both hands / forearms.
  • Suitable insertion openings 318 are known to a person skilled in the art and can design them without restriction to the circumstances of the individual case according to suitable criteria.
  • the insertion apertures are adapted to the anatomy (and optical handedness) of the user's body and dimensioned so that the hands and possibly forearms of the user are inserted without contact of the hands / forearms with the walls of the insertion opening 318 and within Interior 322 of the hand disinfection device 300 can be moved.
  • One (non-limiting) example of a user's hands / forearm insertion aperture 318 is a "preferably" elastic "lip" of, for example, a compliant polymeric material that (see FIG.
  • the elastic lip allows (at least partial) insertion of the hands / forearms in the hand disinfection device 300 from above towards the lower gas space of the device, whereby the Hands / forearms of a user are exposed to the active oxygen or ozone or ultraviolet radiation present in the interior 322 for disinfection of the hands / forearms
  • the elasticity of the material allows the device / opening 318 to largely close around the forearm of the user the user, so that neither ultraviolet radiation nor active oxygen f or ozone can escape from the hand disinfection device 300. This is preferred according to the invention but does not limit the invention.
  • FIG. 3 shows a hand disinfection device 300 which, drawn in dashed lines, has an insertion opening which is dimensioned transversely over the upper housing wall. 318 for the insertion of the hands and forearms of a user.
  • the interior 322 the hand disinfection device have 300 trough shape, d. H. form a trough, in which the gas and in particular by the above-mentioned chemical reaction generated ozone and active oxygen heavier than air, can collect, as long as it is not by irradiation with UV light of suitable wavelength (about 254 nm ) is converted back into oxygen.
  • the ozone can not escape into the outside environment 323 through the upper insertion opening 318 for the body parts to be disinfected (hands, forearms of the user) and cause damage in the outside environment.
  • the hand sanitizer 300 may include at least one device 344, as shown in FIGS. 3 and 4 a plurality, for example two, include means 344 that are capable of preventing leakage of active oxygen from the hand disinfection device 300.
  • the person skilled in the art is aware of such devices 344 as such, and he can select such devices 344 according to the circumstances of the individual case.
  • the hand disinfection device 300 has several, for example two, baffles 344 in the interior 322 of the hand disinfection device 300, which, in particular under the influence of the distribution devices / blower 342, contains the gases, active oxygen and ozone contained in the interior including the latter under the influence
  • ultraviolet radiation decomposes to escape through the insertion opening 318 into the outside environment 323 of the hand disinfection device 300.
  • the hands-disinfecting device 300 comprises at least more than essential means is a arranged in the interior 31 1 of the housing 310 of the hand disinfection device 300 radiation source 324.
  • This is capable of emitting VUV radiation at least one wavelength that a quick and direct / 'ns / fu-formation of active oxygen from ozone in the gas phase in exactly specifiable quantities allowed.
  • the skilled worker knows in this technical field not only the required active oxygen or ozone in good quantum efficiency at suitable wavelengths of the vacuum ultraviolet light generating radiation sources, but also knows radiation sources or lamps whose irradiation of VUV light in-situ generation of active oxygen or ozone in a device such as the hand disinfection device 300 according to the invention allowed. Therefore, the person skilled in the art can select suitable radiation sources 324 for the generation of active oxygen or ozone in accordance with the circumstances (for example, the size and / or shape of the device).
  • the number of arranged in the interior 31 1 radiation sources 324 for emission of VUV radiation according to the invention is not limited to a radiation source; one or more such radiation sources 324 may be present.
  • one or more radiation sources 324 for emitting VUV radiation may be provided.
  • At least one radiation source 324 is present to generate active oxygen and ozone
  • ⁇ 172 nm
  • the invention is not limited to this.
  • the radiated energy allows the defined formation of active oxygen and ozone, for example in an oxygen-containing air mixture, particularly preferably room air mixture, in the interior 322 of the disinfecting device 300, without the formation of nitrogen oxide from the (also contained in the air) nitrogen to effect.
  • a single radiation source 324 capable of emitting VUV radiation more preferably a xenon gas excimer emitter 324, is provided for generating ozone according to the above equation.
  • the invention is not limited to this: a person skilled in the art can adapt their number to the circumstances of the individual case, for example the size of the disinfection device 300, without referring to the number "1" in the sense of "a radiation source 324 (eg an excimer emitter)" to be limited.
  • the person skilled in the art can adapt the number of radiation sources capable of emitting VUV radiation to the circumstances of the individual case, for example the size and / or design of the interior 322 of the disinfection device 300 and the number or dimensioning of the item to be disinfected.
  • Another selection criterion is that the distance between the at least one radiation source 324 (or the plurality of radiation sources 324) capable of emitting VUV radiation and the material to be irradiated / disinfected is at least 0.5 cm, preferably 2 cm to 10 cm , ideally 3 cm to 5 cm, in order to achieve good and rapid disinfection results in the case of a static operation of the disinfecting device 100 without jet nozzles.
  • a disinfection process which will be described in detail below, can be made more active that can be emitted which permits the formation of active oxygen or ozone in the gas phase by the above reaction Oxygen or ozone in the required concentration in the interior 322 hand disinfection device 300 or in the gas generating chamber of the interior 322 is generated and this concentration is maintained over the duration of the disinfection process.
  • the concentration of active oxygen or ozone in the entire interior space 322 of the hand disinfection device 300 depends-among other factors-also on the volume of the interior 322.
  • this gas or the gas mixture is transferred via the device 342 into the reaction space or the disinfection space
  • the concentration of active oxygen is one second to a few seconds after the start of irradiation of possibly pulsed VUV light of said wavelength for a time of (for example, 1 second to 1 minute, depending on lamp efficiency and operation, at values in the range of As a result, the duration of the disinfecting process may be in the range of a few seconds to 10 minutes, preferably in the range of 2 seconds to 2 minutes.
  • the hand disinfection device 300 additionally comprises at least one further radiation source 334 in the interior 322 of the housing 310 of the hand disinfection device 300.
  • the additional at least one further radiation source 334 may be located in the (lower) gas generating chamber.
  • the additional at least one further radiation source 334 may be arranged in the (upper) reaction or disinfection chamber.
  • At least one additional radiation source 334 may be arranged in the (lower) gas generating chamber and at least one further radiation source 334 may be located in the (upper) reaction chamber or disinfection chamber
  • Hand disinfection device 300 may be arranged. This can be done by the person skilled in the art on the basis of the circumstances of the individual case and on the basis of the possible operating parameters of the hand disinfection device 300 according to the invention freely and without any restriction by the in the present description and select and set up the embodiments shown in the figures.
  • This at least one further radiation source 334 is capable of emitting ultraviolet radiation of at least one wavelength which allows short-term light-induced decay of ozone to oxygen with concomitant formation of further active oxygen (see Equation 3 above).
  • concentration of active oxygen be adjusted to a level of active oxygen concentration required for constant disinfection conditions (see reaction equation 3 above), but also excess ozone can be converted to oxygen at the end of the disinfection process. Therefore, no ozone exits into the outside environment 323 of the hand disinfecting device 300 when the disinfecting operation is completed.
  • HNS Osram
  • the invention is not limited to these.
  • the at least one radiation source 334 for emitting UV radiation which serves for the decay of ozone to active oxygen
  • is preferably at least one KrCl excimer lamp emitting at ⁇ 222 nm
  • is the at least one radiation source 334 for the emission of UV radiation, which serves for the decay of ozone to active oxygen, at least one at ⁇ 253 nm emitting Xel excimer lamp
  • is the at least one radiation source 334 to Emission of UV radiation which serves to decay ozone to active oxygen, at least one xenon gas excimer emitter emitting at ⁇ 250 nm with an additional outer cylinder coated with a suitable phosphor on the inside
  • is the at least one a radiation source 334 for emitting UV radiation, which serves for the decay of ozone to active oxygen, at least one emitting in the range of ⁇ 240 to 260 nm UV LED.
  • the invention is not limited to this, but can have a plurality of such radiation sources 334, for example two or more further UV low-pressure radiators 334, which the person skilled in the circumstances of the individual case, for example, the size and / or the shape of the hand disinfection device 300, adapt can.
  • the radiation sources 324 and 334 are installed in close proximity to each other in a sub-chamber 345, in an exemplary embodiment, the baffles 344 can be omitted.
  • the current containing active oxygen is directed to the skin parts such as the hands or forearms of the person to be disinfected.
  • the device (s) for introducing the parts of the body to be disinfected, for example the hands, are open beyond parts of the wall.
  • one or more or all walls of the interior 322 of the disinfecting device 300 may be provided with one or more reflective elements.
  • one or more reflective elements may be attached to one or more walls of the disinfecting device 300.
  • one or more reflective elements for example comprising one or more reflective wall surface (s) or metalized, can be arranged in the emission direction relative to the radiation source 324 or to the radiation sources 324 for the emission of VUV radiation (s) plastic surface (s). With further additional advantage, this / these are capable of causing a directed radiation to be disinfected Good G in the interior 322 of the disinfecting device 300.
  • reflective elements are reflective elements containing wall elements (eg mirrored aluminum with passivating surface) or metallized plastic (PC or PP) surfaces.
  • the reflective elements may, in particular, be capable of producing a directed reflection of the radiation.
  • the success of disinfection processes depends not only on sufficient disinfectant concentration but also on other process parameters. As such, for example, the pressure, the temperature and the humidity of the atmosphere of the disinfection room to call. Of course, the success of the disinfection process is also strongly dependent on the type of germicide (s) to be killed.
  • the disinfection device 300 also comprises, as an essential component, a control consisting of one or more devices. This controls, independently or sensor-controlled, the operation of the UV radiation emitting radiation sources 324, 334 in order to achieve optimal sterilization results.
  • the controller may also control the operation of other components of the disinfection device, such as distribution devices 342.
  • a controller can monitor the process (eg, to comply with certain process parameters, temperature, humidity) and, in an emergency, such as ozone leakage, cause a safety shutdown.
  • the controller may be centrally located or integrated as a microcontroller in the individual electronic control gear (ballasts) of a radiation source or a group of radiation sources or other components of the disinfection device 300.
  • a central controller may be located within the sanitizer 300 or outside.
  • the skin or hand disinfection device 300 can be used in the area of disinfecting the skin of body parts, in particular the skin of the hands and possibly the skin of the forearms.
  • the areas are assigned among other things to the hygienic hand disinfection and the surgical hand disinfection.
  • the highest demands are placed on the surgical hand disinfection, in particular in the context of the disinfecting operation routine before or during surgical or dental treatments of humans and animals.
  • a use of the skin or hand disinfection device 300 according to the invention for a hygienic hand disinfection is in the public sector (eg nursing homes, administration, university, schools, hospitals, kindergartens) and also in the commercial sector (service, gastronomy, production, cosmetics and body care), but also in the technical field, such as for disinfecting mobile phones, keyboards, remote controls, foils for packaging, escalators, handrails, door handles, toilets, animal stalls, conceivable.
  • the skin or hand disinfection device 300 according to the invention can be successfully used on the human body for the reduction of germs which are difficult to control conventionally.
  • the invention also relates to a disinfection process.
  • This makes use of the activated forms of oxygen or ozone as a disinfecting agent in an advantageous manner.
  • active oxygen or ozone in an oxygen and optionally one or more further gas (s) containing gas mixture (such as air) or in pure oxygen in a substantially opposite the external environment 23, 223, 323 of a disinfection device 100, 200, 200 by at least one partial wall 12, 212, 312 completed, the disinfection serving interior 22, 222, 322 of the disinfecting device 100, 200, 300 brought to the material to be disinfected or on body parts of a user to act.
  • gas mixture such as air
  • the disinfection process according to the invention is isolated (ie without application, application and / or action of other disinfection processes, for example conventional disinfection processes with conventional chemical or physical disinfectant media) or also together with them (eg sequentially or simultaneously ) can be carried out.
  • the disinfectant active oxygen or ozone is generated in situ from the oxygen present in the gas space of the disinfection device 100, 200, 300.
  • the inner space 22, 222, 322 which is substantially closed off from the outer environment 23, 223, 323 of the disinfection device 100, 200, 300 by at least one wall 12, 212, 312, one characterized by a defined concentration of active oxygen or ozone is formed gas atmosphere.
  • the product (G) to be disinfected or the skin of body parts (such as the skin of the hands and forearms) of a user are contained in the interior 22, 222, 322 of the disinfecting device 100, 200, 300 of the active oxygen or ozone Gas atmosphere briefly exposed.
  • the disinfection method according to the invention is a disinfection method using active oxygen as a disinfecting agent in an ozone and oxygen and optionally further (s) Gas (e) containing gas mixture in a substantially compared to the outer environment 23, 223, 323 of the disinfecting device 100, 200, 300 by at least one wall 12, 212, 312 teilab reliabilityen interior 22, 222, 322 of the disinfecting device 100, 200, 300th THER
  • Gas (e) containing gas mixture in a substantially compared to the outer environment 23, 223, 323 of the disinfecting device 100, 200, 300 by at least one wall 12, 212, 312 teilab reliabilityen interior 22, 222, 322 of the disinfecting device 100, 200, 300th THER
  • To set the to be disinfected Good G exposure to active oxygen and ozone in a predetermined concentration which is generated by irradiating an oxygen-containing atmosphere with vacuum ultraviolet radiation by at least one first radiation source 24, 224, 324 in situ, and optionally ultraviolet radiation over a predetermined time and under
  • the material G to be disinfected is exposed to the action of active oxygen and ozone in a predetermined concentration, which is generated by irradiating an oxygen-containing atmosphere with ultraviolet radiation by at least one second radiation source 34, 234, 334 in situ, and optionally ultraviolet radiation a predetermined time and under a defined atmosphere.
  • the predetermined time is according to the invention usually short and is preferably according to the invention in the range of a few seconds to a maximum of two minutes (n).
  • Pressure, temperature and humidity can preferably be set to defined values. After already a short exposure time of the active oxygen or ozone to be disinfected Good (G) or body parts (hands, hands and forearms) of a user, a reduction of germs (bacteria, fungi, viruses) of 5 log levels to be watched.
  • G disinfected Good
  • body parts hands, hands and forearms
  • the generation of active oxygen or ozone according to the above equations 1 and 2 is carried out by means of at least one first radiation source 24, 224, 324, which is able to irradiate the oxygen-containing gas phase VUV light of a wavelength of 172 nm.
  • the disinfection method according to the invention is not limited to the use of this first radiation source 24, 224, 324.
  • At least one additional additional light source 34, 234, 334 is used in the method according to the invention.
  • this additional light source 34, 234, 334 is a mercury low-pressure radiator with a peak wavelength at 254 nm. Such low-pressure radiators are commercially available, for example from OSRAM (see above).
  • the radiation of UV radiation is also pulsed by the at least one second radiation source 334 emitted.
  • the pulsation of the at least one second radiation source 334 is coupled to the pulsing and the generated active oxygen concentration of the at least one first radiation source.
  • the frequency of the radiation pulses of the at least one second radiation source 334 in the range of 1 to 100 Hz, for example in a range of 5 to 15 Hz, for example at 10 Hz.
  • the at least one second radiation source 334 at least one in the above frequency range the current first radiation source 324 and operated in the dimmed ( "stand-by-") mode / 'ns / fu-decomposition of ozone with formation of active oxygen and oxygen (equation 3) for the emission of a plurality, eg. B. two Pulses per second operated by UV radiation, which allows the optimal decomposition of ozone to active oxygen and oxygen in the gas phase.
  • the disinfection process is generally set to conditions chosen alone or in combination from a concentration of active oxygen and / or ozone in the range of 50 ppm to 5000 ppm and preferably room air with an active oxygen concentration in the range of 50 to 5000 ppm; a pressure preferably in the range of atmospheric pressure; a temperature in the range of room temperature, preferably from 20 ° C to 25 ° C; a relative humidity in the range of 40% to 80%, preferably about 60%; and a time in the range of a few seconds to 10 minutes, preferably from 2 seconds to 120 sec (2 minutes). Details can be seen from the following data from exemplary experimental experiments.
  • a homogeneous distribution of the generated ozone in the entire reaction space and securing the same reaction conditions is preferably achieved in that the gas phase in the interior 22, 222, 322 of the disinfecting device 100, 200, 300 is moved and circulated.
  • This can be done by means of conventional blowers 42, 242, 342 or fans or jet pipes, which are housed at a suitable location within the interior 22, 222, 322 of the disinfecting device 100, 200, 300.
  • ozone, active oxygen and air have different specific weights.
  • the uniform distribution of the gases in the interior 22, 222, 322 of the disinfecting device 100, 200, 300 is to be considered in the arrangement of distributing devices 43, 242, 342 particular.
  • Devices (whether for medical or non-medical (e.g., cosmetic, beauty care, geriatric, pediatric, and baby care) and animal care, hospitality, and sanitary applications are used in closed device disinfection devices 200 of active oxygen or ozone for a short time (For a time in the range of a few seconds to a few minutes, for example, preferably 2 s to 2 min) exposed, the devices are introduced via insertion devices 218 in the interior 222 of a device disinfection device 200 and stored there on suitable shelves 217.
  • the device disinfection device 200 is sealed and the first VUV radiation source (s) 224 for generating active oxygen or ozone from oxygen present in the interior of the device 200 according to Equation 2 is started.
  • active oxygen or ozone is generated in sufficient concentration in a short time.
  • peak wavelength for example, 254 nm
  • a reduction of the microbial log level of the material to be disinfected by a factor> 4 can be achieved in a time of a few seconds can be.
  • the shutter control is released by the device controller, and the device disinfection device 200 is opened.
  • the disinfected devices (G) can then be removed.
  • a skin, body skin (eg hand) disinfecting according to the invention, not only the particular embodiments of a hand disinfection device 300 are used, as described in detail above with reference to the general and particular preferred features, but in the Substantially the same general conditions of disinfection for the skin disinfection, preferably the body skin disinfection, for example, the disinfection of the skin of the hands and forearms of a user, adhered to, as described above.
  • a user takes place in a hand disinfection device 300 that is closed except for the insertion area 318.
  • a preferred embodiment of such a skin disinfection device 300 is shown schematically by way of example in FIG.
  • the skin of parts of the body such as the skin of the hands and forearms of a user, indicated schematically in Figure 4 by the reference numeral "400" is in the interior of the skin or hand disinfection device 300, the action of active oxygen or Ozone and ultraviolet radiation are briefly exposed (for a time in the range of a few seconds to a few minutes).)
  • the user's hands and forearms 400 are inserted via the introducer 318 into the interior 322 of a hand sanitizer 300.
  • the device or method can switch (the person skilled in the art knows, for example, light barriers or thermal switches which can start selected and predefinable functions of the disinfection device 300) Ozone through the insertion openings 318, 318 'in technikra Around 322 there is a trough-shaped depression in which the ozone, which is heavier than air, collects. Active oxygen may be prevented from escaping from the interior 322 of the hand sanitizer 300 into the exterior environment 323 by guides, such as baffles 344, preferably located in the top of the hand sanitizer 300. As described above, escape of reactive gases from the device can also be prevented by means of a (preferably elastic) lip along which the hands / forearms 400 of the user are inserted into the skin or hand disinfection device 300.
  • a (preferably elastic) lip along which the hands / forearms 400 of the user are inserted into the skin or hand disinfection device 300.
  • the skin by preventing a gas-permeable mechanical barrier 350 such as a gas-permeable mechanical barrier 350 in the interior of the disinfecting device 300 between the import device 318 and the zone in which the at least one first and the at least one second radiation source 324, 334 are arranged Grid or the like is installed or retracted.
  • a gas-permeable mechanical barrier 350 such as a gas-permeable mechanical barrier 350 in the interior of the disinfecting device 300 between the import device 318 and the zone in which the at least one first and the at least one second radiation source 324, 334 are arranged Grid or the like is installed or retracted.
  • the at least one or more first radiation source (s) 324 of the hand disinfection device 300 are started to generate active oxygen or ozone from oxygen present inside the device 300, for example, at the moment when the user's hands / forearms / the user reach or pass the switch, the light barrier, the thermal sensor.
  • active oxygen or ozone is generated in a short time (fractions of seconds, in the nanosecond range) in sufficient concentration.
  • a user's hands and forearms 400 results in a reduction of the microbial log level by a factor of> 4 on the skin surface of the user's hands and forearms in a matter of seconds.
  • the hands (and forearms) of the hand disinfection device 300 on the Import opening 318 taken.
  • the switch or the light barrier or the heat sensor when passing the hands or lower arms 400 of the user turn off predetermined single or multiple or all functions of the disinfection device 300.
  • the hands or forearms are disinfected in a disinfecting device 300 according to the invention in a short time and over several log stages, in which the radiation sources 324 and 334 closely spaced in a sub-chamber 345 installed
  • the baffles 344 may be omitted.
  • jet nozzles 342 the current containing active oxygen is directed to the skin parts such as the hands or forearms of the person to be disinfected.
  • the device (s) for introducing the parts of the body to be disinfected, for example the hands are open beyond parts of the wall.
  • the trays were placed in the hand sanitizer 300 with pulsed irradiation of VUV light and with UV light for a period of 2 seconds each.
  • the atmosphere consisted of unfiltered room air of 25 ° C and 68% humidity.
  • the hands were treated in the hand sanitizer 300 of the invention for a period of 4 seconds.
  • the atmosphere consisted of unfiltered room air of 25 ° C and 68% humidity.
  • the CFU number was reduced from 8.64 to 0.04 and from 1 to 12 to 0.6 (3 log levels and 2 log levels, respectively).
  • MRSA Metalicillin resistant Staphylococcus aureus
  • the method also results in a clear reduction in the number of germs.
  • Radiation source / excimer (active oxygen / ozone concentration) add.
  • Parts of the housing for opening (example: swiveling cover) wall
  • ozone decay Homogeneous distribution of ozone (e.g., blower) body, hands, forearm disinfection device
  • Parts of the housing to open (example: hinged lid) wall

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

L'invention concerne un dispositif de désinfection (100) comprenant un boîtier (10) lequel présente au moins une paroi (12) qui sépare un espace intérieur (22) du dispositif de désinfection (100) de l'environnement extérieur (23) du dispositif de désinfection (100) et comporte au moins une entrée (14) pour acheminer un ou plusieurs gaz, y compris de l'oxygène, dans l'espace intérieur (22) et au moins une sortie (16) pour les évacuer hors de l'espace intérieur (22); au moins une amenée/évacuation (18) pour acheminer le produit à désinfecter (G) jusqu'à l'espace intérieur et l'évacuer hors de l'espace intérieur (22) du dispositif de désinfection (100); au moins une première source de rayonnement (24) disposée dans l'espace intérieur (22) du dispositif de désinfection (100), laquelle est en mesure d'émettre un rayonnement d'au moins une longueur d'onde dans le domaine de l'ultraviolet du vide (VUV), qui permet une formation in-situ d'oxygène actif et d'ozone dans la phase gazeuse contenant de l'oxygène; au moins une seconde source de rayonnement (34) disposée dans l'espace intérieur (22) du dispositif de désinfection (100), laquelle est en mesure d'émettre un rayonnement ultraviolet (UV) d'au moins une longueur d'onde, qui permet une décomposition in-situ de l'ozone, de manière à former de l'oxygène actif dans la phase gazeuse, ainsi qu'un ou plusieurs dispositifs permettant d'assurer le fonctionnement, la commande et le contrôle des sources de rayonnement (24, 34) et/ou du dispositif de désinfection (100). L'invention concerne par ailleurs un procédé de désinfection mis en oeuvre au moyen dudit dispositif de désinfection (100).
PCT/EP2017/067021 2016-07-07 2017-07-06 Dispositif de désinfection et procédé de désinfection WO2018007557A1 (fr)

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DE102016008324.7A DE102016008324A1 (de) 2016-07-07 2016-07-07 Desinfektionsvorrichtung und Desinfektionsverfahren

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US5213759A (en) * 1988-05-05 1993-05-25 Elopak Systems A.G. Sterilization
US5833740A (en) * 1996-11-25 1998-11-10 Brais; Normand Air purifier
US20040120844A1 (en) * 2000-12-07 2004-06-24 Zamir Tribelsky Advanced oxidation of dangerous chemical and biological sources
US20050025662A1 (en) * 2003-06-06 2005-02-03 Lestician Guy J. Lighting apparatus and system for decontamination
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WO2020260186A1 (fr) * 2019-06-26 2020-12-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif et procédé de désinfection de la peau et utilisations associées

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