WO2010060079A1 - Procédé de stérilisation d’une surface à travers un matériau - Google Patents

Procédé de stérilisation d’une surface à travers un matériau Download PDF

Info

Publication number
WO2010060079A1
WO2010060079A1 PCT/US2009/065708 US2009065708W WO2010060079A1 WO 2010060079 A1 WO2010060079 A1 WO 2010060079A1 US 2009065708 W US2009065708 W US 2009065708W WO 2010060079 A1 WO2010060079 A1 WO 2010060079A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiation
sterilizing
cart
source
intensity
Prior art date
Application number
PCT/US2009/065708
Other languages
English (en)
Inventor
John Mcellen
John Zak
Original Assignee
Gojo Industries, Inc,
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 Gojo Industries, Inc, filed Critical Gojo Industries, Inc,
Publication of WO2010060079A1 publication Critical patent/WO2010060079A1/fr

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
    • A61L2/02—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
    • 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

Definitions

  • the present invention relates to through-material surface sterilization and methods, using ultraviolet radiation.
  • UV radiation has been a known mutagen. Recent studies have shown that specific wavelengths and exposure times of ultraviolet light can kill strains of bacteria in both laboratory cultures and animal tissue.
  • One reference characterizes certain subtypes of the electromagnetic spectrum of ultraviolet light as follows as shown in Table 1.
  • spores such as anthrax have a "cell wall” (like bacteria) as well as an outer “shell” which must be penetrated by the UV energy.
  • Viruses such as influenza, the common cold, SARS, measles and small pox do not have a cell wall and are about twenty times more susceptible to UV-C radiation than spores.
  • Bacteria with a cell wall such as tuberculosis, even extended drug resistant (XDR) TB, may be ten times more vulnerable to UV-C radiation than anthrax spores.
  • the UV-C "dose” needed to destroy germs is generally expressed as joules (one UV-C watt of energy for one second) per square meter; or the equivalent micro-joules per square centimeter ( ⁇ j/cm 2 ).
  • Staph may be destroyed at a rate of ninety percent with a dose of 20 joules per square meter, e.g., 90% of staph germs will be destroyed in 20 seconds with only 1 watt of UV-C energy and almost all staph germs will be destroyed in sixty seconds with only 1 watt of UV-C energy.
  • the mechanism and internal germicidal lamp in such systems such as disclosed in the Roberts U.S. Pat. No. 6,458,331 may be activated without touching the device by means of an infrared proximity sensor similar to those used in touchless faucets and towel dispensers commonly seen in public restrooms.
  • Hand washing policies and regular keyboard cleaning policies have had limited effectiveness in practice.
  • Large medical facilities with hundreds or thousands of computer keyboards have deemed it impractical to manually sanitize them with disinfectant more than once or twice per day, even though they may be used by dozens of contaminated employees in between cleanings.
  • Typical healthcare keyboards have many users, so cross- contamination from and to patients by users can result in fatal consequences.
  • the colonization rate for computer keyboards with potentially pathogenic microorganisms is greater than that of other user interfaces in a surgical ICU. These objects may form additional reservoirs for the transmission of microorganisms and become vectors for cross-transmission.
  • Clostridium difficile (CDIF.) and methicillin-resistant Staphylococcus aureus (MRSA) bacteria are capable of prolonged survival, with growths of the bacteria evident 24 hours after contamination.
  • CDIF. Clostridium difficile
  • MRSA methicillin-resistant Staphylococcus aureus
  • Many other examples come readily to mind in environments other than health care, particularly where the surface is handled by many different persons, e.g., the floor selection buttons in elevators, the push buttons of gaming devices, the flat screens used by waitresses in placing orders in restaurants, the push buttons of combination door locks, and the check-in kiosks in airline terminals.
  • UV sterilizing radiation can be used safely, but must be limited in intensity where the UV source can be seen with the eye.
  • the intensity of UV radiation drops as a function of the distance from the source and thus one may safely look directly at a UV source if the distance is sufficiently great or the intensity of the source sufficiently small.
  • the amount of UV sterilizing radiation that is effective for sterilization is the integral of the UV intensity level and the length of time the germs are exposed to such radiation, and thus a relatively low UV intensity may be sufficient where the surface can be exposed for sufficient time.
  • the present invention relates to the introduction of UV sterilizing radiation into a material the surface of which it is desired to sterilize - through a process of backlighting or transillumination. It is accordingly an object of the present invention to irradiate the contact surface of an object from within or below the material forming the surface.
  • Another object is to provide relatively high intensity radiation for a short period of time, effectively reducing the microorganisms on the surface as well as the hand of the person or object touching the surface.
  • the UV sterilizing radiation may be characterized by a wavelength of from about 100 to about 400 nanometers (nm). In another embodiment, the UV sterilizing radiation may be characterized by a wavelength of from about 122 to about 200 nanometers (nm). In another embodiment, the UV sterilizing radiation may be characterized by a wavelength of from about 100 to about 300 nanometers (nm). In another embodiment, the UV sterilizing radiation may be characterized by a wavelength of from about 122 to about 280 nanometers (nm). In another embodiment, the UV sterilizing radiation may be characterized by a wavelength of from about 185 to about 230 nanometers (nm).
  • the UV sterilizing radiation may be characterized by a wavelength of from about 230 to about 280 nanometers (nm). In another embodiment, the UV sterilizing radiation may be characterized by a wavelength of from about 280 to about 260 nanometers (nm). [0018] It is important that the combination of source and the composition of the material be selected to limit the UV radiation passing through the surface to a level that may be safely viewed by the human eye from a predetermined distance from the surface, i.e. a distance from which a human is not likely to view the surface, e.g. an inch. Because the radiation is present for an extended period of time, the surface will remain sterile despite repeated handling by the patient and the caregivers.
  • the surface may be sterilized by UV sterilizing radiation introduced into the material in a manner such that the material functions as a light pipe.
  • the UV-C exits the rail along the length thereof at a controlled intensity.
  • the UV sterilizing radiation may exit the solid material internally of and externally of the tubing to sterilize both internal and external surfaces, thus improving the quality of the liquid or gas passed through the tube.
  • High intensity discharge (“HID”) and LED sources find particular application in "light pipe” applications, where the amount of radiation permitted to exit the surface is a function of the angles of incidence and the configuration of the surface.
  • Fig. 1 is an elevation of a section of a flat contact surface;
  • Fig. 2 is an elevation showing an elevator call device.
  • Fig. 3 is an side elevation in partial section showing the movement of the actuator relative to the source.
  • Fig. 4 is a plan view in partial section of a corner of keypad.
  • Fig 5 is a schematic illustration of the existence of an UV field at an elevation limited by the use of baffles which exposes more of the edge of the individual key to the radiation when the key is depressed.
  • Fig. 6 is an exploded pictorial view of a quick connect sterilizing cart handle.
  • the present invention will be described infra in connection with exemplary uses as an elevator call switch, a keyboard and a cart handle. In its broadest sense, however, the invention effects the reduction of microorganisms on the surface of an object by UV sterilizing radiation transmitted outwardly through the material of the object as contrasted with irradiation of the surface from the front thereof.
  • a flat plate 10 of UV transmitting material 12 may be provided with a rear layer 14 of UV absorbing material and may be provided with a front layer 16 of UV scattering material.
  • the size of the plate will vary with the application, e.g. food trays or table tops in a hospital environment.
  • the radiation transmitting material may be any suitable material such as glass, quartz, plastic, acrylic, polycarbonate or polymers, e..g., Teflon FEP, a copolymer of tetrafluorethylene and hexafluoropropylene available from Dupont Company.
  • the radiation absorbing material on the back side of the plate may be used for safety reasons to prevent the forward reflection of UV radiation.
  • the scattering layer provides a more uniform level of radiation across the surface of the material.
  • UV sterilizing radiation may be caused to pass through the material from above, beneath and/or from the sides thereof, e.g., a series of spaced apart LEDs located on the peripheral edges thereof and/or in an array beneath the top, to present a near uniform intensity over the entire surface. Shielding in the form of an UV adsorbing or reflecting material may be used on the peripheral edges or other radiation hot spots. Alternatively to such edge lighting, the material may be backlit.
  • the radiation scattering material may be any material that diffuses the UV sterilizing radiation that passes through the surface of the material. Multilayer material and/or thin film coatings may also be used.
  • the UV sterilizing radiation may be provided by any suitable conventional source 18 such as lasers, fluorescent, LED, electro-luminescent, high intensity devices ("HIDs") or other commercially available lamp types.
  • the source may be AC or DC powered and use conventional sockets and auxiliary equipment such as electronic ballasts.
  • the radiation may be introduced into the plate 10 from the edges thereof, i.e. sides, top and/or bottom, e.g. UVC light emitting diodes (“LED's”) may be embedded within the plate 10. As earlier indicated, the material may also be backlit.
  • Fig. 2 is a pictorial representation of a prior art fixture used for calling/signaling an elevator car.
  • the fixture is generally mounted in a vertical wall 20 and contains two adjacent flat plates or actuators 22.
  • the actuator plate may be surface mounted, recessed or protrude from the surface of the fixture. Pressure on the plate with the desired arrow 22 makes an electrical contact which may illuminate an indicator bulb within the fixture (not shown) providing a visual signal that the elevator car has been called.
  • the arrow material is usually translucent to permit clear viewing of the signal.
  • Fig. 3 shows the movement of the actuator plate 22 to the left or rear when pressed.
  • the movement of the plate 22 to the rear may be conventionally detected to cause the source 18 to turn on and thus to supply a timed burst of UV energy.
  • the source may remain on and the amount of UV energy entering the actuator 22 controlled by the position of the plate 22, i.e., in the position shown in solid lines, the area of the edge not shielded by the wall 20 is smaller than the area exposed to the source when the actuator 22 is moved to the rear position shown in dashed lines.
  • This permits constant low level UV irridation of the outwardly facing surface of the actuator 22 at a level which, given sufficient time (e.g. 30 minutes) between uses of the actuator, will destroy any microorganisms left thereon.
  • the low level radiation is also sufficient to destroy germs not transmitted by contact, i.e., in liquid droplets resulting from a cough or a sneeze.
  • This structure also provides an increased level of UV during the periods when the actuator 22 is depressed which will materially reduce microorganisms being applied to the actuator 22 by the current user and remaining on the finger of the current user.
  • the depressing of the actuator 22 may latch the actuator 22 in the rear position for a predetermined period of time sufficient to destroy a predetermined percentage of germs.
  • the approximate dimension of an actuator plate 22 is 24" square inches (in 2 )
  • the UV- C energy required to kill 90% of methycillin resistant staph aureus germs (“MRSA”) is 20 joules per square meter ("J/M 2 ").
  • the plate With one watt of UV-C energy transmitted through quartz material, recessing the plate for less than two seconds will destroy approximately 90% of the germs on the surface and on the finger of the operator while the plate 22 is depressed.
  • the plate may be latched in the rear position for a brief period of time and the burst of high intensity radiation may be delayed until after the finger is removed from the surface.
  • Recessing of the device within the wall may be used to control the angle at which radiation enters and leaves the plate 22.
  • the amount of UV energy and the effectiveness of the scattering layer both contribute to the area forward of the actuator 22 where the radiation level reaches the safety limit, e.g. limiting eye exposure to less than zero point four (0.4) microwatts per square centimeter UV-C at a distance beyond three feet from the actuator.
  • the invention provides a self sanitizing activator comprising a housing adapted to be supported proximate to an opening in a surface so that the opening provides access to the interior of said housing ; a substantially flat actuator carried by said housing adjacent the opening, said actuator having a contact surface and conveying light at UV sterilizing wavelengths, being movable by pressural contact from a forward position adjacent the opening to a rear position recessed from the opening, and being biased toward said first position; and a source of UV sterilizing radiation carried interiorally of said housing for introducing a first lower amount of radiation into said actuator when in said forward position and a second higher amount of radiation into said actuator when in said rear position.
  • the intensity of the UV sterilizing radiation passing outwardly through the surface of said actuator is at a first lower level when said actuator is in said first forward position and at a second higher level when said actuator is in said second recessed position.
  • Keyboards are omnipresent in today's computer controlled society. Beyond the hospital setting discussed supra, there are several other environments in which computer keyboards or other such equipment are shared by multiple users, thereby facilitating the transfer of germs from one person to another, e.g., internet cafes and public libraries. Keyboards have myriad other uses such as typewriters, vending machines, security pads, gasoline pumps, touch screens, etc., etc.
  • the present invention provides a self sanitizing keyboard comprising a housing having mounting surface and a plurality of keys mounted on said mounting surface for effecting a electronic control function when a contact surface thereof is contacted by an object; and a source of UV sterilizing radiation carried by said housing for introducing UV sterilizing radiation into each of said plurality of keys when the surface thereof is contacted, each of said plurality of keys passing a portion of any UV sterilizing radiation introduced by said source outwardly through said surface to irradiate any microorganism on said surface.
  • each key it is desirable to expose the surface of each key to a low level of radiation sufficient to kill microorganisms over a relatively long period of time, e.g. 90% of staph in one hour. It is also desirable to expose the surface of every key to a higher level of radiation with every keystroke.
  • the keyboard may have a housing 24 internally absorptive of UV with plural sources 26 disposed therein so as to provide UV sterilizing radiation at a particular elevation.
  • the individual keys 28 are biased up and depressed when contacted by a finger. In the up position, the exposure of the UV receiving material is more limited than when the key is depressed. Thus, each key will receive a relatively low amount of radiation through the lateral side thereof when not depressed and a relatively high amount of radiation through the lateral side thereof when depressed.
  • Carts have many applications that require the use thereof by many different people over a period of time. Carts are populated with specific supplies and equipment in medical environments for use in specific circumstances. Carts are used by grocery shoppers in supermarkets and the big box retailers. Typically, such carts have a horizontal handle grabbed by the user, who handles many items intermittently with his use, and who then relinquishes the cart to another user.
  • the present invention provides an improved cart wherein the handle includes a rigid UV diffusing envelope, e.g. a pipe, and an UV emitting light source carried within.
  • the handle comprises a rigid UV diffusing envelope and an UV sterilizing radiation emitting light source carried internally of said envelope.
  • a handle may comprise a pipe 30 into which is inserted a fluorescent light 32.
  • the pipe 30 must be sufficiently rigid to control the cart and to protect the light when the cart is in use. It must also diffuse the UV from the light 32 that passes through the walls thereof to radiate microorganisms on the handle surface. Teflon (FEP), either as the handle material or as a coating for another suitable UV transparent material may be used.
  • FEP Teflon
  • the ends of the handle 34, 36 may contain the sockets for the light 32 and one end may in addition include a rechargeable battery pack 38 to power the light 32.
  • the ends 34, 36 may also be adapted for a conventional quick-release attachment to a fitting 40 on the cart 42 so that the handles may be periodically removed from the cart to recharge the battery.
  • the radiation be a high level when the cart is not in use so that the handle will be sterile when approached by a user.
  • the UV-C energy be a low level when a user is sufficiently close to risk injury by prolonged contact.
  • the cart may also be provided with one or more strategically placed motion sensors 44 that detect either the proximity of potential users and/or the movement of the cart to reduce the UV intensity.
  • the application of pressure on the handle 39 by a user may be used to restrict the amount of radiation applied to the handle.
  • the adapting of conventional electronic control circuits for these purposes is well within the level of skill in the art and such circuits have accordingly been omitted from the drawings.
  • the present invention further provides the radiation transmitting material may be any suitable material such as glass, quartz, plastic, acrylic, polycarbonate or polymers, e.g., Teflon FEP, a copolymer of tetrafluorethylene and hexafluoropropylene available from Dupont Company.
  • suitable material such as glass, quartz, plastic, acrylic, polycarbonate or polymers, e.g., Teflon FEP, a copolymer of tetrafluorethylene and hexafluoropropylene available from Dupont Company.
  • a method for reducing microorganisms in providing gas to a patient compromising the steps of (a) providing a tube adapted to be connected to a source of gas and to a device for administering the gas to a patient; (b) applying UV-C energy to the interior of the UV-C transmitting walls of the tube at a level sufficient to provide UV-C radiation both internally and externally of the tube sufficient (i) to destroy microorganisms that may have been placed on the external surfaces of the tube by the handling of the tube by hospital personnel and (ii) to destroy microorganisms on the internal surface of the tube that may have been placed there by the flow of contaminated gas.
  • the present invention provides a method of reducing the microorganisms on a contact surface comprising the steps of (a) providing a solid object having a contact surface that may contain microorganisms thereon and (b) passing UV sterilizing radiation through a portion of the object to exit through the contact surface with sufficient intensity and duration to reduce the microorganisms thereon.
  • the contact surface may be adapted to be touched by humans or other animals, and there may therefore be a risk of the subsequent transfer of the microorganisms to other humans who may thereafter touch the contact surface.

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)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

La présente invention concerne l'introduction d'un rayonnement UV stérilisant dans un objet dont la surface doit être stérilisée. Un rayonnement d'intensité relativement faible peut être émis sur une durée relativement longue pour détruire les microorganismes sur cette surface. Un rayonnement d’intensité relativement forte peut être émis sur une courte durée pour réduire efficacement le nombre de microorganismes sur la surface et sur la main d’une personne touchant cette surface. Les circonstances commandant les moments où l'intensité doit être modifiée sont spécifiques de l'application. Comme le rayonnement vient de l'intérieur du matériau, le problème de la porosité de surface est largement atténué. La combinaison de la source et de la composition du matériau est choisie pour limiter la traversée de la surface par le rayonnement UV stérilisant à un niveau qui peut être visualisé en toute sécurité par l’œil humain à une distance prédéterminée de la surface.
PCT/US2009/065708 2008-11-24 2009-11-24 Procédé de stérilisation d’une surface à travers un matériau WO2010060079A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19340408P 2008-11-24 2008-11-24
US61/193,404 2008-11-24

Publications (1)

Publication Number Publication Date
WO2010060079A1 true WO2010060079A1 (fr) 2010-05-27

Family

ID=42198544

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/065708 WO2010060079A1 (fr) 2008-11-24 2009-11-24 Procédé de stérilisation d’une surface à travers un matériau

Country Status (1)

Country Link
WO (1) WO2010060079A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014078324A1 (fr) * 2012-11-13 2014-05-22 Violet Defense Technology, Inc. Dispositif émettant une lumière ultraviolette
US9242018B2 (en) 2010-05-10 2016-01-26 Uv Partners, Inc. Portable light fastening assembly
US9974873B2 (en) 2010-05-10 2018-05-22 Uv Partners, Inc. UV germicidal system, method, and device thereof
US10180248B2 (en) 2015-09-02 2019-01-15 ProPhotonix Limited LED lamp with sensing capabilities
US10376605B1 (en) 2018-03-27 2019-08-13 Universal City Studios Llc Systems and methods for sanitizing amusement park articles
CN112138178A (zh) * 2020-08-24 2020-12-29 广东轻工职业技术学院 一种学校实验室抗疫专用智能型多功能消毒装置及方法
US10898601B2 (en) 2018-03-27 2021-01-26 Universal City Studios Llc Systems and methods for sanitizing amusement park equipment
US11351278B1 (en) 2018-09-07 2022-06-07 Vishal Thakur Self-sterilizing IV pole system
US11479168B2 (en) 2020-06-24 2022-10-25 Shanghai Yanfeng Jinqiao Automotive Trim Systems Co. Ltd. Vehicle interior component
US11918698B2 (en) 2020-03-06 2024-03-05 Uv Partners, Inc. UV disinfection platform

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030017073A1 (en) * 2001-06-15 2003-01-23 Uv-Solutions, Llc Method and apparatus for sterilizing or disinfecting catheter components
US20060213924A1 (en) * 2005-02-09 2006-09-28 Heiner Ophardt Dispenser with thumbprint reader
US20060267299A1 (en) * 2004-10-07 2006-11-30 Dunser Alex H Sanitizing apparatus for shopping cart handles and other handles
US7372044B2 (en) * 2006-05-17 2008-05-13 Andrew Ross UV sterilization of user interface fomites
US20080257355A1 (en) * 2007-04-18 2008-10-23 Rao Chamkurkishtiah P Self-cleaning and sterilizing endotracheal and tracheostomy tube

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030017073A1 (en) * 2001-06-15 2003-01-23 Uv-Solutions, Llc Method and apparatus for sterilizing or disinfecting catheter components
US20060267299A1 (en) * 2004-10-07 2006-11-30 Dunser Alex H Sanitizing apparatus for shopping cart handles and other handles
US20060213924A1 (en) * 2005-02-09 2006-09-28 Heiner Ophardt Dispenser with thumbprint reader
US7372044B2 (en) * 2006-05-17 2008-05-13 Andrew Ross UV sterilization of user interface fomites
US20080257355A1 (en) * 2007-04-18 2008-10-23 Rao Chamkurkishtiah P Self-cleaning and sterilizing endotracheal and tracheostomy tube

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10835628B2 (en) 2010-05-10 2020-11-17 Uv Partners, Inc. UV germicidal system, method, and device thereof
US10918750B2 (en) 2010-05-10 2021-02-16 Uv Partners, Inc. Portable light fastening assembly
US9242018B2 (en) 2010-05-10 2016-01-26 Uv Partners, Inc. Portable light fastening assembly
US11219699B2 (en) 2010-05-10 2022-01-11 Uv Partners, Inc. Standalone portable UV lamp
US9901652B2 (en) 2010-05-10 2018-02-27 Uv Partners, Inc. Portable light fastening assembly
US9974873B2 (en) 2010-05-10 2018-05-22 Uv Partners, Inc. UV germicidal system, method, and device thereof
US11478559B2 (en) 2010-05-10 2022-10-25 Uv Partners, Inc. UV germicidal system, method, and device thereof
US11890387B2 (en) 2010-05-10 2024-02-06 Uv Partners, Inc. UV germicidal system, method, and device thereof
US9572902B2 (en) 2012-11-13 2017-02-21 Violet Defense Technology, Inc. Device for ultraviolet and color light emission
US11633508B2 (en) 2012-11-13 2023-04-25 Violet Defense Group, Inc. Device for increased ultraviolet exposure of fluids
US10046075B2 (en) 2012-11-13 2018-08-14 Violet Defense Technology, Inc. Device for transmitting and projecting greater photonic energy
WO2014078324A1 (fr) * 2012-11-13 2014-05-22 Violet Defense Technology, Inc. Dispositif émettant une lumière ultraviolette
US8993988B2 (en) 2012-11-13 2015-03-31 Violet Defense Technology, Inc. Device for ultraviolet light emission
US10180248B2 (en) 2015-09-02 2019-01-15 ProPhotonix Limited LED lamp with sensing capabilities
US10376605B1 (en) 2018-03-27 2019-08-13 Universal City Studios Llc Systems and methods for sanitizing amusement park articles
US10898601B2 (en) 2018-03-27 2021-01-26 Universal City Studios Llc Systems and methods for sanitizing amusement park equipment
US10874755B2 (en) 2018-03-27 2020-12-29 Universal City Studios Llc Systems and methods for sanitizing amusement park articles
US11351278B1 (en) 2018-09-07 2022-06-07 Vishal Thakur Self-sterilizing IV pole system
US11986565B2 (en) 2018-09-07 2024-05-21 Vishal Thakur Self-sterilizing IV pole system
US11918698B2 (en) 2020-03-06 2024-03-05 Uv Partners, Inc. UV disinfection platform
US11479168B2 (en) 2020-06-24 2022-10-25 Shanghai Yanfeng Jinqiao Automotive Trim Systems Co. Ltd. Vehicle interior component
CN112138178A (zh) * 2020-08-24 2020-12-29 广东轻工职业技术学院 一种学校实验室抗疫专用智能型多功能消毒装置及方法

Similar Documents

Publication Publication Date Title
WO2010060079A1 (fr) Procédé de stérilisation d’une surface à travers un matériau
US10994040B2 (en) Surface treatment with ultraviolet light
TWI702060B (zh) 具有消毒照明表面之蓋
US8203124B2 (en) Sterilization apparatus
US8084752B2 (en) Ultraviolet treatment device
US8877124B2 (en) Apparatus, system, and method for evaluating and adjusting the effectiveness of ultraviolet light disinfection of areas
US8895940B2 (en) Switch sanitizing device
US20080199354A1 (en) Hand sanitizer/sterilizer
JP3174620U (ja) エレベーターボタンの殺菌装置
KR20130025565A (ko) 광고판이 구비된 공기 살균 정화기
KR102418605B1 (ko) 엘리베이터 살균장치
WO2022107629A1 (fr) Chariot pour endoscope et appareil pour endoscope
WO2008096123A1 (fr) Dispositif d'entrée pour un ordinateur
Corrêa et al. Manual operated ultraviolet surface decontamination for healthcare environments
US20220023468A1 (en) Control surfaces and systems and methods for sanitation of control surfaces
US20220062478A1 (en) Antimicrobial light systems for high-touch surfaces, apparatuses, and equipment
GB2387542A (en) Self sterilising handles and switches
JP3232170U (ja) 殺菌機能を有する収納箱
KR20220019121A (ko) Uvc 살균 소독장치
WO2022051693A1 (fr) Décontamination de germes sur des points de contact humains
JP2022026696A (ja) 殺菌装置、建物及び建築設備
RU2738856C1 (ru) Устройство дезинфекции поверхностей
US20220118126A1 (en) Anti-Microbial Hand Sanitizing Device
US20220362426A1 (en) Decontamination of germs on human touch points
KR101242209B1 (ko) 필름 카세트용 자외선 소독기

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09828374

Country of ref document: EP

Kind code of ref document: A1

DPE2 Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09828374

Country of ref document: EP

Kind code of ref document: A1