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
  • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
  • A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
  • A61L2/186—Peroxide solutions
• • 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
  • 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
  • A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised 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
  • A61L2/24—Apparatus using programmed or automatic operation
• • 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
  • A61L9/00—Disinfection, sterilisation or deodorisation of air
  • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. 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
  • A61L9/00—Disinfection, sterilisation or deodorisation of air
  • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
  • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
  • A61L2202/10—Apparatus features
  • A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
  • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
  • A61L2202/10—Apparatus features
  • A61L2202/16—Mobile applications, e.g. portable devices, trailers, devices mounted on vehicles
• • 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
  • A61L2202/25—Rooms in buildings, passenger compartments
• • 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
  • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
  • A61L2209/10—Apparatus features
  • A61L2209/11—Apparatus for controlling air treatment
  • A61L2209/111—Sensor means, e.g. motion, brightness, scent, contaminant sensors
• • 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
  • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
  • A61L2209/20—Method-related aspects
  • A61L2209/21—Use of chemical compounds for treating air or the like
  • A61L2209/211—Use of hydrogen peroxide, liquid and vaporous
• • 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
  • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
  • A61L2209/20—Method-related aspects
  • A61L2209/21—Use of chemical compounds for treating air or the like
  • A61L2209/212—Use of ozone, e.g. generated by UV radiation or electrical discharge

Definitions

• the present invention relates to a method for disinfecting a volume or a volume of space by means of a biocide containing hydrogen peroxide or peroxone and a disinfection device with a biocide containing hydrogen peroxide or peroxone.
• the present invention can be applied, particularly in the medical field, in the field of scientific research and more generally in all spaces requiring disinfection / decontamination.
• the present invention solves the technical problems with the prior art by furnishing a method of disinfecting a volume by means of a biocide containing hydrogen peroxide (H2O2) or peroxone (03+ ⁇ 2 ⁇ 2), comprising step of:
• H2O2 hydrogen peroxide
• fecting means a total kill and/or a significant kill of micro-organisms and/or pathogenic viruses for example, by altering their structure and/or inhibiting their metabolism and/or some of their vital functions.
• volume to be disinfected means any room, place, box or any space that could require disinfection / decontamination.
• patient wards emergency rooms, treatment rooms, operating theatres, Intensive Care Unit (ICUs), infectious disease units, oncology units and/or other units receiving severely immunocompromised patients, isolation rooms, air plane cabin, cloakroom, cool room, refrigerated room, cold storage room, changing room, ambulances/emergency vehicles, a laboratory, including a biological laboratory, incubators room and other enclosed volume of any nature requiring disinfection / decontamination.
• ICUs Intensive Care Unit
• steps a) and b) can be carried out separately as needed for decontamination
• the hydrogen peroxide can be used in the process at a concentration of 2 to 35% by volume, and preferably of 4.5 to 7.5% by volume.
• the hydrogen peroxide can be in the form of a solution, a powder, a gas and/or any adapted form known to one skilled in the art. It may be for example a solution, for example a commercially available peroxide solution, for example Amity HP 75 (registered trademark) commercialized by amity international, X-CID (registered trademark) commercialized by Airinspace SAS, or any similar chemical disinfectants.
• a solution for example a commercially available peroxide solution, for example Amity HP 75 (registered trademark) commercialized by amity international, X-CID (registered trademark) commercialized by Airinspace SAS, or any similar chemical disinfectants.
• diffusion of hydrogen peroxide can be carried out by any means known by one skilled in the art.
• the hydrogen peroxide when the hydrogen peroxide is in a form of a solution, by spraying, atomizing, vaporizing, misting, and/or a nebulizing into the volume.
• the hydrogen peroxide solution can be atomized with any adapted means known to from one skilled in the art, for example using a venturi nozzle, or a venturi nozzle coupled with a compressor.
• the Hydrogen peroxide can be aspired according to the air suction principle. It can be delivered through the nozzle into the room in the form of a dry mist by means of Venturi effect.
• the hydrogen peroxide can be delivered until the desired amount is achieved (ml/m 3 - milliliter per cubic meter room to be treated) .
• the diffusion of hydrogen peroxide can be carried out by misting with micro droplets of diameter ranging between 3 to 9 ⁇ , preferably 5 to 8 ⁇ .
• DMHP dry mist of hydrogen peroxide
• this allows a perfect diffusion in the whole treated volume as well as a homogeneous and/or uniform distribution over the surfaces.
• DMHP dry mist of hydrogen peroxide
• the hydrogen peroxide is diffused by misting with micro droplets of a diameter ranging between 5 to 8 ⁇ , its advantageously allows to preserve Hydrogen peroxide entire disinfecting properties while reaching all surfaces of the volume.
• the hydrogen peroxide can be diffused into the volume in an amount of 6 to 20 g/m 3 , and preferably 8 to 12 g/m 3 of volume to be disinfected.
• the ozone used in the process can be in the form of a solution, a gas or any other form known by the skilled person. It can be for example in gas and/or form.
• ozone is in the from of a gas.
• ozone can be generated during the process, for example using a ozone generator, for example a corona tube, preferably a corona tube provided with an air dryer mean.
• a ozone generator for example a corona tube, preferably a corona tube provided with an air dryer mean.
• the injection of ozone in the volume can be carried out using any means known to one skilled in the art.
• a fan can be for example a colloidal fan, a blower fan, an axial compact fan, preferably an axial compact fan.
• ozone can be injected into the volume in an amount ranging from 6 x10 3 g/m 3 to 108 x10 3 g/m 3 , preferably from 9.81 x10 3 g/m 3 to 17.66 x10 3 g/m 3 of the volume to be disinfected.
• the process involves injection of ozone (O3) into the volume to be disinfected, followed by a diffusion of hydrogen peroxide into said volume, the ozone and hydrogen peroxide can be allowed to contact one another.
• O3 ozone
• the process of the invention can comprise two steps: ozone dissolution and hydrogen peroxide addition in the volume.
• hydrogen peroxide can be added after ozone in the volume, and thus advantageously can allow ozone oxidation and disinfection to occur first.
• the contacting time between ozone and hydrogen peroxide in step b) may be carried out for 4 to 420 minutes, preferably 30 to 120 minutes.
• the process involves injection of ozone (O3) into the volume to be disinfected, followed by diffusion of hydrogen peroxide into said volume
• O3 ozone
• the inventors have demonstrated that it allows the ozone oxidation and the transformation of ozone molecules into hydroxyl radicals and ozone transfer from the gas phase to the liquid is improved due to an increase in ozone reaction rates.
• the process of the invention allows advantageously to produce highly reactive hydroxyl radicals that attack DNA, membrane lipids and/or other essential cell components allowing therefore a complete disinfection.
• the process of the present invention when the process involves injection of ozone (O3) into the volume to be disinfected, followed by diffusion of hydrogen peroxide into said volume, the added hydrogen peroxide advantageously increases the hydroxyl radical concentration and then accelerates the decomposition of ozone.
• the added hydrogen peroxide advantageously increases the hydroxyl radical concentration and accelerates the decomposition of ozone and thus Increase the hydroxyl radical concentration allowing advantageously increasing the oxidation rate.
• the process of the present invention can allow a net production of hydroxyl free radicals about 1 .0 mole of hydroxyl radical per mole ozone.
• the inventors have surprisingly demonstrated that the process of the present invention due to the combination of ozone and hydrogen peroxyde have a better efficiency in disinfection than the use of ozone alone or hydrogen peroxide alone. They also demonstrated that the process of the present invention due to the combination of ozone and hydrogen peroxyde have a better efficiency in disinfection than the use of Hydrogen peroxide alone or ozone alone.
• the method may be implemented at a temperature of 15-30 °C, preferably 18 to 22 °C.
• the inventors have demontrated that the process of the invention allows better oxydation of the lipidic structure of germ membranes, production of hydroxyl radicals, detoriation of ribosomes and DNA by cytoplasmic penetration, accelerated lyse of microorganisms.
• the present invention also relates to a device for disinfecting a volume using a biocide based on hydrogen peroxide or peroxone (ozone + hydrogen peroxide) said device comprising:
• An injection system of ozone also defined as ozone generation system, in said volume,
• a diffusion system of hydrogen peroxide also defined as hydrogen peroxide feed system, in said volume, for example an atomizing system, for example with an air compressor and a venturi nozzle.
• the device may comprise containers (6) for hydrogen peroxide, for example plastic containers, preferably High
• HDPE Density Polyethylene
• plastic containers for example metal containers, preferably stainless steal containers which possess high corrosion resistance to Hydrogen peroxide and ozone and a means for producing ozone, for example a mean selected from the group comprising a corona tube, a corona tube with a air dryer.
• the device when the device itself comprises a mean for producing ozone it can allow the automatic regeneration of ozone.
• the injection system of ozone can be any means known to one skilled in the art. It can be, for example when ozone is injected in gas form, a fan, for example colloidal fan, for example an axial compact fan.
• the hydrogen peroxide diffusion system can be any means known to one skilled in the art. It can be, for example a means comprising a compressor, for example an oil- free compressor, for example a 7 bar pressure compressor, for example a HPE 40C (registered trademark), for example a Thomas 668 series (registered trademark), for example a PLANET-R OF-S60 (registered trademark) a venturi nozzle, and/or a venturi nozzle coupled with a compressor
• a compressor for example an oil- free compressor, for example a 7 bar pressure compressor, for example a HPE 40C (registered trademark), for example a Thomas 668 series (registered trademark), for example a PLANET-R OF-S60 (registered trademark) a venturi nozzle, and/or a venturi nozzle coupled with a compressor
• the diffusion noise is reduced, for example the diffusion noise can be less than 58 db.
• the hydrogen peroxide diffusion system is a venturi nozzle coupled with a compressor, it can advantageously allow atomization of hydrogen peroxide in the form of droplets of small diameters, in particular 5 to 8 ⁇ .
• the air intake of the compressor can further comprise air filters .
• the device according to the invention can comprise internal compartments for hydrogen peroxide containers (6).
• the compartments can comprise a lockable back door (4).
• the hydrogen peroxide containers can be ready-to-use and sealed containers (6).
• hydrogen peroxide it can be Amity HP 75 (registered trademark), X-CID (registered trademark) containers and/or any ready-to-use and sealed hydrogen peroxide containers.
• the container (6) for hydrogen peroxide can be 2.5 liters containers.
• the hydrogen peroxide container can comprise an identification zone on its exterior surface.
• the identification zone can be covered with a readable code, for example a barcode, a flashcode, a detectable chip, for example a chip card, for example a RFID chip.
• the sealed containers are ready- to-use containers removing the need of tanks within the device.
• the compartment for the container can comprise a mobile support (7) wherein the container may be fitted.
• the compartment for the container can comprise an aspiration means (8), for example a tube, a needle to be introduced into the container.
• an aspiration means (8) for example a tube, a needle to be introduced into the container.
• the mobile support (7) can allows, for example, the movement of the container fitted into the support and direct connection with the aspiration means.
• the injection mean when the injection mean is a needle, it can directly perforate the hydrogen peroxide containers avoiding therefore any risk of contact between the user and hydrogen peroxide.
• the compartment for the container can comprise at least 2 spaces for at least two containers.
• the compartment for container comprises at least two spaces for at least two containers it advantageously allows avoiding any disruption in the process and can advantageously avoiding any unexpected stop of the process from a lack of hydrogen peroxide.
• the compartment for the hydrogen peroxide containers can comprise at least one or two reader(s) mean(s), for example a barecode reader, a flashcode reader, a chip card reader, a
• identification of the container with the identification zone and the reader mean can allow to control and/or identify and/or confirm that the container is adapted to the device.
• the ozone can be generated by a built-in system.
• the ozone can be generated by a mean selected from the group comprising a corona tube, a corona tube with a air dryer.
• the device does not need to require any space or compartment for any ozone container.
• the device may further comprise a computerized system.
• the computerized system can automatically manages the containers; means can automatically switch from one container to another when one of them is empty and also can avoid unexpected stop due to a lack of hydrogen peroxide.
• the device may further comprise a liquid sensor, for example an optical sensor, for example a flow sensor, for example a flow meter to monitor the hydrogen peroxide flow from the containers to the nozzle.
• a liquid sensor for example an optical sensor, for example a flow sensor, for example a flow meter to monitor the hydrogen peroxide flow from the containers to the nozzle.
• the device may further comprise an embedded computer system which, for example, can comprise a programming system.
• the device may further comprise a programming system and/or a system for an automatic control of the ozone injection and / or hydrogen peroxide release.
• the device may further comprise a programming system and/or a system for automatic management of ozone injection and / or hydrogen peroxide diffusion to coordinate the injection of ozone and peroxide diffusion.
• the device according to the invention may further comprise at least one of the following: a temperature and/or humidity sensor, for example a sensor with a humidity working range from 0 to 100% RH, with a temperature working range from about -20 to 80 degree Celsius, for example the MQ3010 (registered trademark) and/or a E+E electronic EE06 and/or a ATEN EA1240 (registered trademark), allowing advantageously measuring both temperature and relative humidity of the volume to be disinfected, a sensor for detecting the presence of hydrogen peroxide in the volume, for example a Drager Pac III device (registered trademark) or a C16-PortaSens II Portable Gas Detector device with ATI C16 Hydrogen Peroxide Sensor Module (registered trademark), or a The Very High Level Peroxide strips - PERVHL box (registered trademark), a sensor for detecting ozone in the volume to be disinfected, for example a ATI C16 PortaSens II Portable Gas Detector device with ATI C
• the device may further comprise a Touchscreen (5) selected from the group comprising a Programmable Logic Controller (PLC), for example Human-machine interface, for example Programmable Logic Controller, for example Programmable Logic Controller plus Human-machine interface, for example pocket computer,
• PLC Programmable Logic Controller
• Human-machine interface for example Programmable Logic Controller
• Programmable Logic Controller plus Human-machine interface for example pocket computer
• a UNITRONICS PLC V350 registered trademark
• OMRON NSJ8 registered trademark
• the device may further comprise a embedded PLC for operating and controlling the device.
• the device when it comprises a touch screen, it can allow user(s) to set the device, control the embedded computer, and/or to program / specify, for example the volume of the area to be disinfected, the designation of the area, the name and surname of the user, the disinfection program, for example simple diffusion of hydrogen peroxide or injection of ozone followed with diffusion of hydrogen peroxide, the hour and date, to set a differed start, the language, to unlock the containers back door, to directly or remotely abort a cycle, to setup VPN connections and VPN ports, to transfer traceability data via Ethernet and/or Wifi to computer and/or remote appliance, to connect the device via Ethernet and/or Wifi to computer and/or remote appliances for example a tablet, a smartphone, a PLC, an HMI, a pocket computer, to enable or disable the Wifi function, to enable or disable the Motion detection system, to monitor the ambient conditions (temperature and relative humidity) of the area to be disinfected, the start and stop times, the duration of the disinfecti
• the device of the invention may further comprise a recording system, for example for recording the number of disinfection process or cycles completed, and/or the disinfected volume.
• a recording system for example for recording the number of disinfection process or cycles completed, and/or the disinfected volume.
• It can be, for example, a hard disk on which may be recorded, for example the date, start and stop times, type of cycle, for example simple diffusion of hydrogen peroxide or injection of ozone followed with diffusion of hydrogen peroxide, user name and surname, area designation, volume of the area, amount of hydrogen peroxide delivered, hydrogen peroxide flow in milliliter, temperature and relative humidity of the area, chemical name, batch number, warning message for a disinfection process carried out.
• the device when the device comprises a recording system, it can make accessible the full audit history of hydrogen peroxide, ozone used and process of disinfecting events.
• the device may further comprise a wireless system to connect the device and/or to control the device from, for example, a remote.
• the device can be connected via Wifi and/or Bluetooth to a smart phone, a computer or the likes.
• Wifi and/or Bluetooth to a smart phone, a computer and/or the likes
• the device allows, for example, control, launch, stop, analysis of and/or monitor the disinfection from, for example a remote localisation.
• the device according to the invention may be a mobile unit.
• it can comprise wheels allowing advantageously displacement of the device.
• the device can comprise at least two wheels (2) located on each opposite side of the device
• the device can also comprise a handle (1 ) located on the top of the device.
• the device of the invention may further comprise an energy source.
• the energy source can be an electrical generator, a chargeable battery, for example a lithium-ion battery, and/or any energy source known to one skilled in the art.
• the device of the invention can comprise an exterior surface or a body (3) in any adapted shape and any known adapted material known to one skilled in the art. It can be, for example made with plastic, for example plastic resin prefrom, aluminum, and/or carbon resin
• the exterior surface and/or body can protect the device and its components from shock.
• FIG. 1 represents the diffusion and injection of ozone and hydrogen peroxide from a device.
• FIG. 2 represents lateral and front views of the device according to the present invention comprising a handle (1 ), wheels (2) and the body (3)
• FIG. 3 represents a frontal view of the device according to the present invention comprising a handle (1 ), wheels (2), the body (3) and the motion detection system (9)
• Figure 4 represents a top view of the device according to the present invention comprising a handle (1 ), wheels (2), a back door (4) and a touch screen (5).
• Figure 5 is a diagram representing the disposal of inoculated plates comprising E.coli, Staphylococcus aureus and Candida albicans on a counter in a room.
• Figure 6 is a diagram representing a device implementing the process of the invention in a room with regards to inoculated plates with E.coli, Staphylococcus aureus and Candida albicans on a counter.
• Figure 7 is a top view of a room comprising a device implementing the process of the invention in a room with regards to inoculated plates with E.coli, Staphylococcus aureus and Candida albicans on a counter.
• Figure 8 is a top view of a room comprising a device after implementation of the process of the invention in a room with regards to inoculated plates with E.coli, Staphylococcus aureus and Candida albicans on a counter.
• Figure 9 is a top view and pictures of a room specially equipped for conducting microbial tests and evaluating the efficacy of a device against bacteria, fungi, yeasts, spores and mycobacteria in accordance with the NF T 72-281 requirements comprising a device after implementation of the process of the invention in the room and the stainless steel disks 1 .4301 (NF EN 10088-1 ) from 2 cm to 4 cm in diameter, inoculated with Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Enterococcus hirae, Candida albicans, Aspergillus niger, Bacillus subtilis, Clostridium difficile and Mycobacterium terrae on a trolley.
• NF EN 10088-1 stainless steel disks 1 .4301
• Figure 10 represents a rear view of a device capable of implementing the process of the invention comprising a lockable back door (4), a handle (1 ), wheels (2) and an external surface (3); and a lateral view of a device implementing the process of the invention before introducting a hydrogen peroxide container (6) into said device.
• Figure 1 1 represents a rear view of a device comprising a mobile support (7) into which a hydrogen peroxide container (6) has been fitted.
• Figure 12 represents a lateral and three-quater view of a mobile support (7) into which a hydrogen peroxide container (6) has been fitted and wherein a tube (8) is inserted into the hydrogen peroxide container.
• Example 1 device for disinfecting a volume
• FIG. 2 to 4 and 10 to 12 shows an example of disinfection device according to the invention.
• the disinfection device comprises a handle (1 ), a plastic thermoformed exterior surface (3), wheels (2), a lockable back door (4) which allows entry into the inner part of the device, a touch screen (5) for controlling and/or programing the device.
• the device comprises two mobile supports (7) wherein two containers of 2.5 L each (6) of hydrogen peroxide solution are fitted, said mobile supports respectively allowing insertion of a tube (8) into the container, said tubes being connected to an oil free compressor with air intake filter to avoid particulate contamination of air supply, connected to an advanced air assisted venturi nozzle.
• the approaches allows hydrogen peroxide solution atomization with liquid droplets of 5 to 8 ⁇ in diameter.
• the device also comprises a built-in ozone generator, i.e. a corona ceramic tube and an electric power supply.
• the device also comprises an embedded computer connected to the touch screen (5) and control means for regulating the diffusion of hydrogen peroxide and ozone into the volume.
• the touch screen also allows one to control the opening of the lockable back door (5).
• the device comprises gauges for controlling the levels of hydrogen peroxide solution.
• Example 2 process for disinfection a volume and performances
• the process was tested using the device represented in figure 1 and described in example 1 .
• the hydrogen peroxide solution used was the Amity HP 75 commercialized by amity international (registered trademark) which is a colorless and odourless liquid that comprises a concentration of 7.5% hydrogen peroxide.
• the ozone was produced by a built-in ozone generator, in particular a corona ceramic tube.
• Test room volume 50 m 3 (cub. Meter)
• the example was carried out on microorganisms linked to pathologies.
• microorganims were not the sole species responsible for these pathologies, since other microorganisms have also been identified as co-responsibles.
• Microorganisms were collected from fresh carcasses in a breeding centre in France (Department of Maine-et-Loire) and were:
• Candida albicans collected from cows (abnormal milk) / Sabouraudis agar method. Diagnostics Pasteur
• Hydrogen peroxide was added after ozone (thus allowing ozone oxidation and disinfection to occur first).
• Atomizing time 49 mn (See details in section 3.2).
• the testing room was neither pre-cleaned nor ventilated before running the disinfection cycles (incl. between cycles). This aimed to evaluate the effectiveness of the disinfectant chemicals when poor cleaning routines or negligence that may rarely occur in healthcare environment.
• the trials were not conducted in the presence of blood, organic waste, greasy substances etc.
• One TwinCruiser® unit corresponding to the device of example 1 was placed in the room, at a distance of 3.00 meters from the media.
• the angle of the nozzle of the TwinCruiser was adjusted for better dispersion (from 30 to 45°C) for all the chemicals used.
• the machine's dispensing system was calibrated so that the flow was constant (12-15 ml/mn).
• the TwinCruiser® was programmed to disperse 12 ml/mn.
• Hydrogen peroxide - PEL 1 part per million (ppm) parts of air (1 .4 milligrams per cubic meter (mg/m 3 ) as an 8-hour time-weighted average (TWA) concentration [29 CFR 1910.1000, Table Z-1 ].
• Ozone - PEL The following limits are widly accepted (USA, Sweden, UK and other parts of Europe): 0.1 ppm (0.2mg/m 3 ) calculated as an 8 hour time-weighted average concentration.
• the Operative After 2 hours contact time the Operative also checked the H2O2 strip detectors to ensure the chemicals dispersal uniformly all over the surfaces in the testing room.
• Table 1 belows describes the trial conditions, i.e temperature, duration spraying and atomizing time, and the contact time between peroxide and ozone.
• Disinfectant active substances O3+H2O2 H 2 0 2 O3+H2O2
• Ozone atomizing cycle starts at 17H45 N/A 19H27
• Inocula CFU 1 .9 Inocula CFU: Inocula CFU: log 8 4.4 log 7 2 log 8
• Inocula CFU Inocula CFU: Inocula CFU: 1 log 6 1 log 6 1 log 6
• Example 3 process for disinfection a volume and performances
• test microorganisms clearly specified wihin the norm and procured from collection centers : P.aeruginosa NCIMB 1042, S.aureus NCTC 10788, E.coli NCTC 10418, E.hirae NCIMB 8192, A.baumanii NCIMB 14421 , MRSA NCTC 12493, B.subtilis (spores) NCIMB 8054, C.albicans NCPF 3179, A.niger NCPF 2275, M.terrae NCTC 10856.
• the biocide used was Hydrogen peroxide [H2O2]: Amity HP75
• the table 4 below compares the disinfection results obtained to those required by the NF T 72-281 :2009 and NF EN 14348
• Example 4 process for disinfection a volume and performances
• the hydrogen peroxide solution used was the X-CID commercialized by Airinspace SAS (registered trademark) which is a colorless liquid which is a colorless and odourless liquid that comprises a concentration of 7% hydrogen peroxide and 0.4% PAA.
• the dual device/ X-CID was tested twice (30 mn and 60 mn contact times).
• test room volume was 50 m 3 (cub. Meter), misting rate was 10ml per minute - 9ml per cubic meter 1 .
• the biocide used was Hydrogen peroxide [H2O2+PAA]: X-CID (registered trademark) disinfectant contained in two 2.5 liter containers (Hydrogen peroxyde based solution at 7% concentration + PAA at 0.4% concentration).
• Test 1 Misting rate : 10ml per minute - 9ml per cubic meter
• Test 1 Contact time: 60 mn.
• Test 2 Misting rate : 10 ml per minute - 9ml per cubic meter Test 2 - Atomizing time: 56 mn
• the process of the present invention allows the powerful disinfection of a volume, for example when used with hydrogen peroxide based solutions at 7 to 8% concentration and/or when used with peroxone, i.e. ozone plus above mentioned hydrogen peroxide based solutions.
• the results clearly demonstrate that the process of the present invention achieved total kills and significant kills, for example by altering the growth and accelerating lyse of very different microorganisms such as bacteria, fungi, yeasts, spores and mycobacteria. Accordingly, the process of the present invention allows advantageously simultaneous disinfection of a surface and of a volume.

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