EP3946478A1 - Procédé et dispositif de désinfection de salles blanches - Google Patents

Procédé et dispositif de désinfection de salles blanches

Info

Publication number
EP3946478A1
EP3946478A1 EP20733679.3A EP20733679A EP3946478A1 EP 3946478 A1 EP3946478 A1 EP 3946478A1 EP 20733679 A EP20733679 A EP 20733679A EP 3946478 A1 EP3946478 A1 EP 3946478A1
Authority
EP
European Patent Office
Prior art keywords
spray
aircraft
nozzle
disinfectant
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20733679.3A
Other languages
German (de)
English (en)
Inventor
Simon Dietz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
G F P S Gesellschaft Fuer Produktionshygiene und Sterilitaetssicherung Mbh
Original Assignee
G F P S Gesellschaft Fuer Produktionshygiene und Sterilitaetssicherung Mbh
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 G F P S Gesellschaft Fuer Produktionshygiene und Sterilitaetssicherung Mbh filed Critical G F P S Gesellschaft Fuer Produktionshygiene und Sterilitaetssicherung Mbh
Publication of EP3946478A1 publication Critical patent/EP3946478A1/fr
Pending legal-status Critical Current

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F3/167—Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed
    • 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
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/26—Accessories or devices or components used for biocidal treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
    • B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
    • B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00—Propulsion; Power supply
    • B64U50/30—Supply or distribution of electrical power
    • B64U50/37—Charging when not in flight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/14—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
    • A61L2202/15—Biocide distribution means, e.g. nozzles, pumps, manifolds, fans, baffles, sprayers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00—Type of UAV
    • B64U10/10—Rotorcrafts
    • B64U10/13—Flying platforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00—Type of UAV
    • B64U10/80—UAVs characterised by their small size, e.g. micro air vehicles [MAV]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U20/00—Constructional aspects of UAVs
    • B64U20/90—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications
    • B64U2101/25—UAVs specially adapted for particular uses or applications for manufacturing or servicing
    • B64U2101/29—UAVs specially adapted for particular uses or applications for manufacturing or servicing for cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications
    • B64U2101/30—UAVs specially adapted for particular uses or applications for imaging, photography or videography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications
    • B64U2101/45—UAVs specially adapted for particular uses or applications for releasing liquids or powders in-flight, e.g. crop-dusting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications
    • B64U2101/70—UAVs specially adapted for particular uses or applications for use inside enclosed spaces, e.g. in buildings or in vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U80/00—Transport or storage specially adapted for UAVs
    • B64U80/20—Transport or storage specially adapted for UAVs with arrangements for servicing the UAV
    • B64U80/25—Transport or storage specially adapted for UAVs with arrangements for servicing the UAV for recharging batteries; for refuelling

Definitions

  • the invention relates to a method for disinfecting clean rooms by applying a disinfectant by an unmanned aircraft.
  • the invention also relates to a device for carrying out this method, comprising an appropriately designed unmanned aircraft.
  • Hygiene and cleanliness in cleanrooms play a central role in ensuring product quality.
  • There are clean rooms in the organic / biological area such as pharmacy, reproductive medicine, cosmetics, the food industry or bio-laboratories as well as in the inorganic area such as semiconductor production, microelectronics, micromechanics, optics, satellite technology or surface coating technology.
  • the disinfection process is made more difficult by the fact that the particulate and microbiological contamination on the surfaces is not accessible to the human eye capture are.
  • the employee can neither recognize contaminated areas nor visually record the success of his disinfection activity.
  • the control is usually carried out by checking the signing of a hygiene plan. Where an entry (assigned to the day and the person) is made after the supposed disinfection step.
  • VAH Association for Applied Hygiene
  • the object of the invention is to provide an improved method and device for disinfecting clean rooms.
  • this object is achieved by a disinfection method having the features of independent claim 1.
  • Advantageous further developments of the disinfection method emerge from the dependent claims 2 to 6.
  • this object is achieved by an unmanned aircraft with the features of claim 7.
  • Advantageous further developments of the unmanned aircraft emerge from the dependent claims 8 to 15. Summary of the invention
  • the invention relates to a method for disinfecting clean rooms by applying a disinfectant, in which the disinfectant is sprayed from the air onto the surfaces to be disinfected with the aid of an unmanned aircraft, the disinfectant being stored in at least one container on board the aircraft is.
  • the method according to the invention combines several decisive advantages over the methods known from the prior art.
  • Modern unmanned aerial vehicles can be precisely controlled and can also be held in the hover flight with precise positioning.
  • the disinfection can therefore be precisely controlled and monitored. This not only applies to the targeted approach to the surface, but also to maintaining a defined distance from the surface, which is particularly important for an effective spraying process.
  • spray disinfection is an activity that involves a health risk for the personnel.
  • the method according to the invention is a measure for increasing work safety.
  • humans represent the particle source that has the greatest influence on the pollution of the clean room, which is thus significantly reduced by the method according to the invention.
  • the unmanned aerial vehicles have meanwhile been miniaturized in such a way that they can be held in the clean room on unused storage areas (e.g. the top of the cabinet) and can then fly off and disinfect this room directly.
  • An unmanned aircraft can so far only approach and treat surfaces that are difficult to reach (ceiling, cabinet surfaces) in a targeted manner.
  • the flight route with the spray program can be carried out by previously recording the clean room coordinates with the objects contained therein.
  • the aircraft can be equipped with distance sensors that can detect deviating objects and lead to a change in the flight route.
  • the control can also take place here during the disinfection process (e.g. through image capture using a camera).
  • a data record can thus be created for each disinfection process, which not only allows online control, but also enables a subsequent assessment of proper disinfection.
  • Deviations in relevant parameters can be recorded and displayed visually and / or acoustically as warning notices.
  • the existing sensors together with the image acquisition can also be used to detect critical deviations in the clean room (impurities that have not been removed, rust spots, puddles, etc.) and the aircraft can thus also function as a “control drone”.
  • the flight and spray program can be tested beforehand and optimally adapted to the surfaces to be treated. For the first time, this enables a content-related, cleaning-relevant control of the disinfection process, which was previously not possible by simply signing the hygiene plan.
  • An unmanned aerial vehicle drone does not require any “personal protective equipment” and can also be used in off-peak times or “dead times”.
  • An aircraft reduces the introduction and release of contaminants.
  • all disinfectants that have already been established can be used.
  • disinfectants can also be used for the first time that are too toxic / incompatible for humans.
  • completely different disinfection methods can also be replaced, that is, a pure gas release, a smoke release or a treatment with UV rays.
  • the process allows spray disinfection to be combined with other disinfection processes, such as UV radiation.
  • the disinfection method according to the invention enables clean room disinfection that is reliable, comprehensively controllable, inexpensive and fast.
  • the invention thus includes a method for disinfecting clean rooms by using an unmanned aircraft for spraying onto the surfaces to be disinfected.
  • the storage of the disinfectant on board the aircraft means that there is no need for an external supply (e.g. through a hose) and the aircraft can move freely in the room.
  • the disinfectant is received undiluted in the container. This makes the aircraft lighter and uses less energy.
  • the aircraft comprises at least one device for detecting the correct application of the disinfectant.
  • This device expediently records the correct application online, that is to say already during the disinfection process taking place in flight, and collects and / or transmits the data recorded in this way to a control device.
  • This at least one detection device can detect the correct application on several levels: on the container side by decreasing the fill level, on the spray side by detecting the correct spraying process and on the surface side by detecting the properly sprayed surface.
  • the device expediently uses an imaging method for detecting the correct application, which is preferably selected from the group consisting of photography, thermography, UV photography and reflection measurement.
  • the wet surface can be detected as a shiny surface.
  • Thermography can take advantage of the fact that disinfectants often contain highly volatile organic solvents. The enthalpy of evaporation required for evaporation is taken from the environment (keyword: "evaporation cold") and thus leads to a cooling of the sprayed surface, which can thus be detected thermographically. UV-active disinfectants can be recorded directly by UV photography on your order. Since wet surfaces have an increased reflection, a reflection measurement can be used here.
  • the aircraft preferably contains one or more spray nozzles.
  • the disinfectant can be finely atomized by means of the spray nozzles, so that a spray consisting of the smallest droplets is generated. Furthermore, the spray pattern and in particular the spray angle over which the disinfectant is applied can be determined via the spray nozzle.
  • the disinfectant is applied by means of a valve in order to enable an exact volume regulation. The valve can be connected upstream of the spray nozzle in order to regulate the inflow to the spray nozzle.
  • the at least one device for detecting the correct application is designed to detect at least one of the following spray parameters: a) spray duration,
  • one or more sensors are expediently used which are attached to the spray device and can thus directly detect the spraying process with regard to one or more of the above-mentioned spray parameters.
  • the unmanned aircraft contains at least one container for storing the disinfectant.
  • This container is expediently a pressure container containing propellant gas.
  • This has the advantage that a pump device can be dispensed with and the disinfectant can be fed directly from the container to the spray device.
  • the storage container can be connected to a separate pressure source. Any devices known to the person skilled in the art can be used as pressure sources, such as a pressure pump or a separate pressure vessel filled with propellant gas.
  • the aircraft used in the method has at least one spray device which is set up to spray the disinfectant onto the surface to be treated.
  • the spray device is selected from the group consisting of spray nozzle, valve, single-substance pressure nozzle such as lamellar nozzle, turbulence nozzle, or jet-forming nozzle, two-substance nozzle with an external mixture, two-substance nozzle with an internal mixture and a rotary atomizer.
  • the invention in a second aspect, relates to a device for performing the disinfection method described above, comprising at least one unmanned aircraft, by means of which the disinfectant can be sprayed from the air onto the surfaces to be disinfected, and wherein the aircraft has at least one container for storing the disinfectant
  • the disinfectant container which is preferably a pressure container, is preferably detachably connected to the unmanned aircraft in order to be exchanged in a simple manner for a new, filled (pressure) container after the disinfectant has been used up.
  • a holder for receiving the spray can can be configured on the aircraft so that replacement can be carried out quickly and easily.
  • the unmanned aircraft represents the central unit of the device, which can then be supplemented by one or more additional units.
  • Examples are base unit (synonymous with “base station”), control unit, GPS unit, data exchange unit, filling unit, cleaning unit, disposal unit for used containers, electrical charging unit. These units can exist as separate devices. A plurality of units are preferably integrated in one device.
  • the base station can thus comprise an electrical charging unit, a filling unit and a control unit.
  • the device has a mobile GPS unit and a GPS receiver.
  • the area to be disinfected can be marked by the mobile GPS unit, the corresponding GPS data are received by the GPS receiver and could be used there to create a disinfection plan.
  • the present space with its objects through an ultrasound. Bluetooth or laser-based rangefinder can be measured.
  • the aircraft according to the invention expediently has at least one range finder for precise flight control.
  • This rangefinder can work by means of ultrasound or laser.
  • Duocopter Tricopter
  • Quadrocopter Hexacopter
  • Octocopter Hexacopter
  • These multicopters have several rotors or propellers, preferably arranged in one plane, which act vertically downwards, in order to generate lift and, by inclining the rotor plane, also propulsion.
  • the multicopter can take off and land vertically like a helicopter.
  • the unmanned aircraft has a camera device for detecting the correct application of the disinfectant, the camera device enabling one or more of the following imaging methods to be carried out: photography, thermography, UV photography and reflection measurement.
  • the unmanned aircraft has at least one device for controlling one or more of the following spray parameters: spray duration, spray quantity, spray intensity, spray angle, spray area.
  • the aircraft has an automatic switch-off which terminates the spraying process and / or the flight when a critical event, such as the presence or approach of a person, is detected.
  • the unmanned aerial vehicle has at least one spray device which is selected from the group consisting of a spray nozzle, valve, single-substance pressure nozzle such as a lamellar nozzle, turbulence nozzle, jet-forming nozzle, two-substance nozzle with an external mixture, two-substance nozzle with an internal mixture and a rotary atomizer,
  • the at least one spray device is provided with a valve that is either electronically controlled or that opens when a defined liquid pressure is exceeded.
  • the at least one spray device is aligned in such a way that it is not adversely affected by the air flow of the rotors in its spraying process. This can be achieved in that the spray device is mounted on the opposite side of the aircraft with respect to the rotors. In view of the rotors located on top, it is advantageous to mount the spray device under the housing of the aircraft.
  • the aircraft can have one or more shielding devices which shield the spraying devices in each case from the air flow generated by the rotor or the rotors.
  • the spray devices are attached in such a way that the spraying process is supported by the air flow from the rotors. Since the rotors generate a downward air flow in flight mode, this air flow can support the spraying or accelerate the drying of the disinfectant.
  • spray devices are attached centrally under the center point of the rotors (that is, for example, under the rotor hub).
  • the unmanned aircraft is an aircraft with a weight of up to 20 kg (so-called “small UAV”) and particularly preferably an aircraft with a weight of up to 5 kg (so-called “micro UAV” ).
  • small UAV an aircraft with a weight of up to 20 kg
  • micro UAV an aircraft with a weight of up to 5 kg
  • the unmanned aircraft is expediently designed for use in interior spaces and, in this case, is preferred for use in clean rooms.
  • the unmanned aircraft is expediently made of a material that is suitable for clean rooms according to DIN ISO 14644-14 with regard to the type of material and its surface properties.
  • unmanned aircraft is constructed in such a way that areas with static air are avoided. It should be noted here that unmanned aircraft are usually operated with rotors. The outer shape of the missile must be adapted to the air flow generated by the rotors while avoiding static air areas.
  • the unmanned aircraft is designed so that the air flow of the rotors acts on the surface as a low-turbulence displacement flow (TAV).
  • TAV low-turbulence displacement flow
  • the unmanned aircraft has one or more of the following structural features to achieve sufficient cleanability in accordance with DIN ISO 14644-14:
  • the unmanned aircraft has a housing that is closed on all sides. This reduces the release of particles.
  • the drone has a heat exchanger as a cooling device.
  • An air cooler would have the disadvantage of increased particle emissions
  • the heat exchanger is adjacent to a container containing propellant gas; here, the cooling brought about by the adiabatic expansion of the gas via the heat exchanger can be used to cool the device.
  • the cleanroom-compatible materials in the area of the moving parts of the aircraft are of particular relevance.
  • the movement results in friction processes between two materials, which in turn is the most common cause of particle emissions.
  • the expert can use classification measurements and evaluations according to VDI 2083 Sheet 8 determine the cleanroom suitability of material pairs and determine the corresponding material pairs for the aircraft at hand.
  • the measurement of the friction in materials testing is usually carried out according to the "ball-disc test", the "disc-disc test” or the "roller-disc test”.
  • the surface of the aircraft has, with regard to its electrostatics, an electric field (E-field) with a sensitivity level of 4, preferably of 3, particularly preferably of 2 and in particular of 1.
  • E-field electric field
  • the sensitivity level is defined by the development of an electric field on the surface according to the following table:
  • the surface of the aircraft has a volume resistance of between 7.5 ⁇ 10 5 ohms to 10 9 ohms and a surface resistance of 10 4 ohms / reference surface to 10 10 ohms reference surface.
  • the device has means for detecting the presence of people in the clean rooms provided for cleaning. This ensures that the aircraft does not collide with persons present or that persons present are not exposed to the disinfectant.
  • This personal detection means can either be part of the unmanned aircraft, but it can also be present in the base station or in a separate control device. This detection means can detect the presence of a person, preferably via an image acquisition unit or a movement sensor.
  • the device has a base station for receiving the unmanned aircraft, the base station preferably being equipped to carry out one or more of the following tasks:
  • the base station has one or more of the following devices in accordance with the above-mentioned tasks:
  • the invention relates to a method for disinfecting the unmanned aircraft, in which the aircraft reverses the thrust of the rotors after landing (preferably in the base station) and the disinfectant released by the spray device is directed upwards over the housing of the aircraft . This enables the aircraft to be disinfected in a simple manner.
  • This process can be carried out not only to disinfect, but also to clean the drone by spraying a cleaning liquid.
  • This cleaning liquid can also be dispensed from the base station.
  • the housing comprises a plastic that is suitable for clean rooms or has at least one surface which consists essentially or completely of plastic that is suitable for clean rooms.
  • This plastic is preferably selected from the group consisting of polyethylene, polypropylene, polyamide, polyethylene terephthalate (PET), polyvinyl chloride, ethylene-propylene-diene (monomer) rubber (EPDM) and polyamide.
  • the materials / coatings exposed on the surface of the aircraft are expediently inert to the disinfectant used.
  • the unmanned aircraft preferably has a connecting element for connection to an external filling device.
  • This connecting element is intended to allow a reversible connection to the supply unit and is preferably a plug connector, snap connector, screw connector or bayonet connector.
  • An “unmanned aerial vehicle” in the sense of the invention is (English unmanned aerial vehicle, UAV .unbmanned 'or Unmanned Aerial System, AUS, colloquially also called a drone) is an aircraft that is self-sufficient without a crew on board operated and navigated by a computer or from the ground via a remote control.
  • UAV .unbmanned 'or Unmanned Aerial System, AUS colloquially also called a drone
  • a “clean room” is to be understood as a room in which a defined limit value for the concentration of airborne and other contaminants is observed.
  • Disinfection in the sense of the application is defined as a hygiene measure that serves to kill or inactivate pathogens and thereby significantly reduce their number on or in an object or on a biological surface. The aim is to achieve a state in which an infection is no longer likely.
  • disinfection is synonymous with the term disinfection cleaning.
  • contamination means the condition of a product, a surface, a device, gas, fluid with a specified degree of contamination.
  • a contamination is defined here as any particulate, molecular, non-particulate or biological unit which it can adversely affect the product being processed in the room or the process taking place in the room.
  • a "low-turbulence displacement flow (TAV)" is defined as a regulated air flow with uniform speed and almost parallel flow lines over the entire cross-section of the area concerned (in accordance with VDI guideline 2083, sheet 4.1, point 3.4.2).
  • the term “qualification” is defined as a workflow for disinfection according to a defined method, which is used to determine and / or check the disinfection performance of a clean room or a part thereof.
  • a particulate surface cleanliness class is defined by the number of individual particles on a reference area of 1 cm 2 , based on a reference particle diameter of 1 mm, in a decadic evaluation system according to VDI guideline 2083, sheet 9.1, version December 2006, Fig 4th
  • a surface resistance is defined as an electrical resistance measured between two electrodes on this surface.
  • FIG. 1 shows the schematic representation of an unmanned aerial vehicle according to the invention
  • the aircraft has a housing made of a material suitable for clean rooms with a surface 5 suitable for clean rooms and is equipped as a Duocopter with two rotors 4 suitable for clean rooms. It also has a spray nozzle 1, a laterally attached container for the disinfectant 2, sensors for indoor navigation 3, a digital camera as an image acquisition unit 6 and a device for data transmission. The cooling takes place via a heat exchanger 9 attached to the surface.
  • the aircraft also has connection means 8 on the bottom side for the base station, which are used for electrical charging and filling.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Catching Or Destruction (AREA)

Abstract

L'invention concerne un procédé de désinfection de salles blanches par application d'un produit de désinfection, selon lequel le produit de désinfection est vaporisé par les airs sur les surfaces à désinfecter, à l'aide d'un engin volant sans pilote embarqué, le produit de désinfection étant stocké dans au moins un réservoir, à bord de l'engin volant. L'invention concerne en outre un dispositif permettant la mise en œuvre dudit procédé, le dispositif comprenant un engin volant sans pilote embarqué correspondant.
EP20733679.3A 2019-04-01 2020-04-01 Procédé et dispositif de désinfection de salles blanches Pending EP3946478A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019108397.4A DE102019108397A1 (de) 2019-04-01 2019-04-01 Verfahren und Vorrichtung zur Desinfektion von Reinräumen
PCT/DE2020/100268 WO2020200368A1 (fr) 2019-04-01 2020-04-01 Procédé et dispositif de désinfection de salles blanches

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EP (1) EP3946478A1 (fr)
JP (1) JP2022532984A (fr)
KR (1) KR20210146342A (fr)
CN (1) CN113631865A (fr)
CA (1) CA3131910A1 (fr)
DE (2) DE102019108397A1 (fr)
IL (1) IL286721A (fr)
WO (1) WO2020200368A1 (fr)
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KR20220065915A (ko) * 2020-11-13 2022-05-23 현대자동차주식회사 드론을 이용한 차량 실내 살균장치
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CN113917946B (zh) * 2021-11-18 2024-05-10 上海顺诠科技有限公司 基于动态调整预警范围的无人机自动喷洒作业系统及其方法
CN114712544B (zh) * 2022-04-24 2024-02-09 长沙众优虫害防治有限公司 一种喷雾除臭系统
KR102677930B1 (ko) * 2022-04-27 2024-06-25 주식회사 엔공구 드론을 이용한 차량 세척용액 공급시스템.
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WO2020200368A1 (fr) 2020-10-08
CN113631865A (zh) 2021-11-09
DE112020001768A5 (de) 2022-01-13
US20220143244A1 (en) 2022-05-12
ZA202107329B (en) 2022-08-31
KR20210146342A (ko) 2021-12-03
CA3131910A1 (fr) 2020-10-08
DE102019108397A1 (de) 2020-10-01
IL286721A (en) 2021-10-31
JP2022532984A (ja) 2022-07-21

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