EP2999488A1 - An air-surface disinfection system, unit and method - Google Patents
An air-surface disinfection system, unit and methodInfo
- Publication number
- EP2999488A1 EP2999488A1 EP14734977.3A EP14734977A EP2999488A1 EP 2999488 A1 EP2999488 A1 EP 2999488A1 EP 14734977 A EP14734977 A EP 14734977A EP 2999488 A1 EP2999488 A1 EP 2999488A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- recited
- tubular member
- air
- ultraviolet light
- light sources
- 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
Links
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims description 25
- 230000005855 radiation Effects 0.000 claims abstract description 19
- 230000001954 sterilising effect Effects 0.000 claims abstract description 10
- 230000000249 desinfective effect Effects 0.000 claims description 16
- 239000010453 quartz Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 7
- 241000894006 Bacteria Species 0.000 abstract description 4
- 244000052769 pathogen Species 0.000 abstract description 4
- 238000009423 ventilation Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 240000000528 Ricinus communis Species 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
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
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—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
- 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
- A61L2202/16—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
Definitions
- This invention relates to disinfection and, more particularly, to disinfection of airborne bacteria or other pathogens and substantially
- UVC C-band ultraviolet light
- One object of the invention is to provide a system and method that is capable of substantially simultaneous and efficient disinfection of both air and surfaces within a room using the same ultraviolet light source.
- Another object of the invention is to provide a system and method that supports a plurality of ultraviolet lamps or light sources about a transparent tubular member.
- Still another object of the invention is to provide a system and method that utilize a majority of light rays emitted from an ultraviolet light source to disinfect, such as using some of the light rays to disinfect air passing through an interior of a generally circular transparent member that defines a passageway surrounded by an array of the plurality of ultraviolet light sources and that causes outwardly-projecting rays to disinfect surrounding surfaces outside the
- Still another object of one embodiment of the invention is to provide a transparent tubular member having an array of a plurality of ultraviolet light sources situated there around so that light can pass through the transparent tubular member to disinfect air passing there through and other light rays from the plurality of ultraviolet light sources substantially simultaneously disinfect at least one or a plurality of surfaces in a room where the plurality of ultraviolet light sources are located.
- Still another object of one embodiment of the invention is to provide a transparent tubular member for use in a disinfection system and method that is hollow or can be filled with reflective, focusing, concentrating or baffling apparatus to slow or create turbulence within the airflow or otherwise improve ultraviolet effective.
- one embodiment of the invention comprises a disinfection unit comprising a housing comprising a blower or fan for blowing air, a transparent tubular member for receiving air blown by the blower or fan and for directing it in a predetermined direction, a plurality of ultraviolet light sources supported by the housing and arranged in a predetermined pattern around the transparent tubular member such that, when the plurality of ultraviolet light sources are energized, the plurality of ultraviolet light sources project ultraviolet radiation outward to facilitate sterilizing an environment outside the housing, the plurality of ultraviolet light sources also projecting ultraviolet radiation through the transparent tubular member to facilitate sterilizing air blown through the transparent tubular member, and a controller coupled to the blower or fan and the plurality of ultraviolet light sources for controlling operation of the disinfection unit.
- another embodiment of the invention comprises an air-surface disinfector comprising a transparent tubular member defining a passageway for receiving air and for directing the air in a predetermined direction and a plurality of ultraviolet light sources arranged in a predetermined pattern such that, when the plurality of ultraviolet light sources are energized, ultraviolet radiation is projected inwardly through the transparent tubular member to facilitate sterilizing air passing through the transparent tubular member and outwardly to facilitate sterilizing an environment or area around the plurality of ultraviolet light sources.
- another embodiment of the invention comprises a method for disinfecting an area or environment, the method comprising the steps of arranging a plurality of ultraviolet light sources in a predetermined order such that they generally surround a predetermined interior disinfecting area, directing infected air through the predetermined interior disinfecting area, energizing the plurality of ultraviolet light sources so that they radiate the predetermined interior disinfecting area and disinfect the infected air that passes therethrough, the plurality of ultraviolet light sources generating ultraviolet light that radiates away from the predetermined interior disinfecting area to also disinfect air surrounding the plurality of ultraviolet light sources and at least one surface in the area or environment in which the plurality of ultraviolet light sources are energized.
- FIG. 1 is perspective view of a disinfection unit, system and method for disinfecting both air passing through the system and also disinfecting surfaces in an environment surrounding the system;
- FIG. 2 is another view of the system shown in Fig. 1 illustrating the ventilation holes in a housing that supports the components of the system and also showing an end cap or grate which also has exit ventilation holes;
- FIG. 3 is a perspective view of the ventilation system shown in Figs. 1 and 2 with the end cap or grate removed so that the internal blower or fan may be seen;
- Fig. 4 is a fragmentary and sectional view illustrating a blower or fan shown in Fig. 3 supporting a first or input end of a transparent tubular member and portions of the end cap or grate which has a generally circular wall that supports a second or exit end of the transparent tubular member and further showing lamp holders in the end cap or grate and on a surface of the housing for supporting a plurality of ultraviolet light sources in a generally parallel relationship with each other and with the transparent tubular member.
- the disinfection system 10 comprises a disinfection unit or disinfector 1 2 having a housing 14.
- the housing 14 comprises at least one or a plurality of interior generally circular walls 16 that define a plurality of perforations or ventilation openings or holes 18 in the housing 14.
- a plurality of sides of the housing 14 may comprise the ventilation openings or holes 18.
- the housing 14 further comprises a plurality of wheels or castors 20 that enable the disinfection system 10 to be mobile and moveable from one area to another.
- the disinfection system 10 further comprises a blower or fan 22 (best illustrated in Figs. 3 and 4) that is conventionally mounted in the housing 14.
- the blower or fan 22 is a radial fan having an inlet 22a and an outlet or exit 22b (Fig. 4).
- the disinfection system 10 further comprises a transparent tubular member 24 having a first end 24a that is received and supported on the sleeve or exit duct 22c of the blower or fan 22 and supported thereon.
- the transparent tubular member 24 comprises a tube axis TA (Fig. 4).
- the transparent tubular member 24 defines a passageway 27 that defines a predetermined interior disinfection area for receiving air blown by the blower or fan 22 and for directing it toward the outlet or exit 22b and through an end cap or grate 28 that will be described in more detail later herein.
- the disinfection system 1 0 comprises a plurality of ultraviolet light sources 30 that are arranged in a predetermined pattern around the transparent tubular member 24 as shown.
- the plurality of ultraviolet light sources 30 When the plurality of ultraviolet light sources 30 are energized, they provide C-band ultraviolet radiation that disinfects the air passing or blown through the passageway 27 as will be described in more detail later herein.
- the plurality of ultraviolet light sources 30 each comprised an elongated ultraviolet lamp, such as an ultraviolet lamp 32 illustrated in Fig. 4.
- Fig. 4 illustrates a single ultraviolet lamp 32 and its relationship to the transparent tubular member 24, but it should be understood that the plurality of the ultraviolet lamps 32 surround the transparent tubular member 24 in a generally circular array as mentioned.
- the plurality of ultraviolet light sources 30 are each shown as including the elongated ultraviolet lamp 32, it should be appreciated that other ultraviolet light sources could be used.
- the disinfection system 10 further comprises a controller 34 for controlling an operation of the disinfection system 10.
- the controller 34 is electrically coupled to the blower or fan 22, the plurality of ultraviolet light sources 30 and various conventional light components 36, which include, for example, a ballast 46 (Fig. 4), starter, conductors and lamp holders.
- the light components 36 are mounted in or on the housing 14 and under the control of the controller 34.
- the light components 36 comprise a first lamp holder 40 mounted on a surface 14a of the housing 14 and a second lamp holder 42 that is mounted on an interior surface 44a of a generally radial wall 44 of the grate 28.
- each of the plurality of ultraviolet light sources 30 are supported between a pair of lamp holders 40 and 42 so that a lamp axis LA of each of the plurality of ultraviolet light sources 30 is generally parallel to the axis TA as illustrated in Fig. 4.
- the lamp holders 40 and 42 comprise conventional bi-pin female connectors, such as connectors 40a in Fig. 4, that each receives a conductive pin 30a of the ultraviolet light source 30.
- the lamp holders 40 and 42 are mounted on the housing 14 and the interior surface 44a of the grate 28.
- the lamp holders 40 and 42 are conventional and comprise the conventional connectors, such as connectors 40a, which are electrically coupled together by wires (not shown) and to a ballast 46 which in turn is coupled to the controller 34.
- Other conventional UVC components may be used.
- the light components 36 (Fig. 1 ) comprise the conventional components, such as ballast, starter, electrical conductors, lamps holders and the like, that are adapted and fitted to the disinfection system 10 in order to support the plurality of ultraviolet light sources 30 in a generally upright and vertical position and adjacent to the transparent tubular member 24 as shown in Fig. 4.
- the disinfection system 10 further comprises an electrical plug 34a (Fig. 1 ) that is coupled to a conventional power source, such as a conventional 120 volt AC power source. It should be understood, however, that the housing 14 could comprise a conventional DC power source, such as a 6 volt or 12 volt DC battery, for operating the components of the disinfection system 10.
- a conventional power source such as a conventional 120 volt AC power source.
- the housing 14 could comprise a conventional DC power source, such as a 6 volt or 12 volt DC battery, for operating the components of the disinfection system 10.
- the lamp holder 40 is conventionally mounted to the surface 14a, and the lamp holder 42 is conventionally mounted to the interior surface 44a of wall 44 of the end cap or grate 28.
- C-band ultraviolet light is emitted from each of the plurality of ultraviolet light sources 30 so that a portion of the light, such as the rays labeled IR in Fig. 4, are transmitted through the transparent tubular member 24 and into the passageway 27 where infected air passes therethrough.
- the radiation disinfects the air passing through the passageway 27.
- other light rays, labeled OR in Fig. 4 are transmitted outside to the
- the disinfection system 10 simultaneously and efficiently disinfects the air passing through the transparent tubular member 24 and passageway 27 as well as at least one or a plurality of surfaces within a room.
- the at least one or a plurality of surfaces may be a wall surface, a ceiling surface, a floor surface, fixtures, such as a sink or toilet surfaces, or furniture, such as a chair, table, bed or the like.
- the end cap or grate 28 has a generally planar exit surface 28a having a plurality of interior circular walls 62 that define a plurality of ventilation holes or openings 64 as illustrated in Figs. 1 -3 in order to direct air general upward and in a predetermined direction after the air exits the end 24b of the transparent tubular member 24.
- the end cap or grate 28 also serves the function of supporting the transparent tubular member 24 and the plurality of ultraviolet light sources 30 generally vertically and upright as illustrated in Fig. 4.
- the end cap or grate 28 has the interior generally radial wall 44 with the interior surface 44a onto which the lamp holders 42 are mounted as shown.
- the generally radial wall 44 comprises an interior surface 44a that is received inside the passageway 27 at the end 24b of the transparent tubular member 24.
- the interior surface 44a is generally circular and is adapted and sized to be received in the transparent tubular member 24 in order to support it in the generally upright position illustrated in the figures.
- the end cap or grate 28, walls 44 and interior surface 44a are illustrated in a sectional and fragmentary view so that the various components of the end cap or grate 28 may be seen.
- a user moves the disinfection system 10 into a predetermined environment, such as the environment 26 (Fig. 3), which may be, for example, an interior environment of a building such as a hospital room, medical room, home or other area where it is desired to disinfect air in the environment 26 and at least one surface in the environment 26.
- the disinfection system 1 0 is plugged into a power source via electrical plug 34a (Fig. 1 ).
- the user may actuate a switch 34b which causes controller 34 to energize the plurality of ultraviolet light sources 30 and the blower or fan 22. Air passes through the ventilation openings or holes 18 in the housing 14 and into the radial blower or fan 22.
- the air is blown through the passageway 27 of the transparent tubular member 24 along the axis TA and through the end 24b of the transparent tubular member 24.
- the ultraviolet light rays IR Fig. 4
- the light rays OR irradiate the at least one surface in the environment 26 and the surrounding air, thereby disinfecting the at least one surface which may include the surfaces mentioned earlier herein.
- the transparent tubular member 24 may be hollow and define the passageway 27, but alternatively, it could be filled with reflective, focusing, concentrating or baffling apparatus or airflow interrupter 70 to slow or create turbulence within the airflow passing through the passageway 27 in order to improve the ultraviolet effectiveness.
- features of the system and devices of U.S. Serial No. 13/838,367 filed March 15, 2013, may be used. This application is owned by the same Assignee as the present application and is incorporated herein by reference and made a part hereof.
- Such features may include providing the at least one baffle or airflow interrupter 70 (Fig. 4).
- the at least one baffle or airflow interrupter 70 may comprise a plurality of tubular quartz members (not shown) that are situated in the passageway 27.
- each of the plurality of ultraviolet light sources 30 comprises an elongated ultraviolet lamp member that uses C-band ultraviolet light (UVC), but other types of radiation could be used, such as A, B band ultraviolet, infrared, microwave, ionizing radiation, gamma radiation and the like.
- UVC C-band ultraviolet light
- the disinfection system 10, device and method provide simultaneous and efficient disinfection of air and surfaces within a room using the same plurality of ultraviolet light sources 30. Among other advantages, this reduces or eliminates the need for multiple disinfection units, such as an air- disinfection unit and a separate surface-disinfection unit.
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361826145P | 2013-05-22 | 2013-05-22 | |
PCT/US2014/038989 WO2014190066A1 (en) | 2013-05-22 | 2014-05-21 | An air-surface disinfection system, unit and method |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2999488A1 true EP2999488A1 (en) | 2016-03-30 |
Family
ID=51062910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14734977.3A Pending EP2999488A1 (en) | 2013-05-22 | 2014-05-21 | An air-surface disinfection system, unit and method |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2999488A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021109717A1 (en) | 2020-04-19 | 2021-10-21 | Metralabs Gmbh Neue Technologien Und Systeme | System, device and method for disinfection |
-
2014
- 2014-05-21 EP EP14734977.3A patent/EP2999488A1/en active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2014190066A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021109717A1 (en) | 2020-04-19 | 2021-10-21 | Metralabs Gmbh Neue Technologien Und Systeme | System, device and method for disinfection |
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